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[Guile-commits] GNU Guile branch, master, updated. v2.1.0-310-gb8bc86b
|
From: |
Andy Wingo |
|
Subject: |
[Guile-commits] GNU Guile branch, master, updated. v2.1.0-310-gb8bc86b |
|
Date: |
Fri, 22 Jun 2012 16:55:37 +0000 |
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "GNU Guile".
http://git.savannah.gnu.org/cgit/guile.git/commit/?id=b8bc86bce147cf280ca2a60d36c8b6493cbf11e8
The branch, master has been updated
via b8bc86bce147cf280ca2a60d36c8b6493cbf11e8 (commit)
via afc74c2920d2f8f8424db9d6f554a91866cbac01 (commit)
via 83e7c58408ad227b38cc8c2e0542a514ebcdc2c8 (commit)
from 0dd7c5407599b65a1a3da4b9bd8feccc715b51f7 (commit)
Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.
- Log -----------------------------------------------------------------
-----------------------------------------------------------------------
Summary of changes:
doc/ref/compiler.texi | 27 +-
libguile/Makefile.am | 1 +
libguile/elf.h | 2794 +++++++++++++++++++++++++++++++++
libguile/objcodes.c | 796 +++++++---
libguile/objcodes.h | 12 +-
libguile/vm.c | 7 +-
module/Makefile.am | 4 +-
module/language/bytecode/spec.scm | 7 +-
module/language/objcode/elf.scm | 94 ++
module/language/objcode/spec.scm | 1 +
module/scripts/disassemble.scm | 4 +-
module/system/repl/command.scm | 4 +-
module/system/vm/elf.scm | 1255 +++++++++++++++
module/system/vm/objcode.scm | 4 +-
test-suite/tests/asm-to-bytecode.test | 24 +-
15 files changed, 4753 insertions(+), 281 deletions(-)
create mode 100644 libguile/elf.h
create mode 100644 module/language/objcode/elf.scm
create mode 100644 module/system/vm/elf.scm
diff --git a/doc/ref/compiler.texi b/doc/ref/compiler.texi
index 692cb36..d95cd02 100644
--- a/doc/ref/compiler.texi
+++ b/doc/ref/compiler.texi
@@ -1,6 +1,6 @@
@c -*-texinfo-*-
@c This is part of the GNU Guile Reference Manual.
address@hidden Copyright (C) 2008, 2009, 2010, 2011
address@hidden Copyright (C) 2008, 2009, 2010, 2011, 2012
@c Free Software Foundation, Inc.
@c See the file guile.texi for copying conditions.
@@ -800,29 +800,36 @@ objcode)} module.
Returns @code{#f} iff @var{obj} is object code, @code{#f} otherwise.
@end deffn
address@hidden {Scheme Procedure} bytecode->objcode bytecode
address@hidden {Scheme Procedure} bytecode->objcode bytecode [endianness]
@deffnx {C Function} scm_bytecode_to_objcode (bytecode)
Makes a bytecode object from @var{bytecode}, which should be a
-bytevector. @xref{Bytevectors}.
+bytevector. @xref{Bytevectors}. By default, the embedded length fields
+in the bytevector are interpreted in the native byte order.
@end deffn
address@hidden {Scheme Variable} load-objcode file
address@hidden {C Function} scm_load_objcode (file)
address@hidden {Scheme Variable} load-thunk-from-file file
address@hidden {C Function} scm_load_thunk_from_file (file)
Load object code from a file named @var{file}. The file will be mapped
into memory via @code{mmap}, so this is a very fast operation.
-On disk, object code has an sixteen-byte cookie prepended to it, to
-prevent accidental loading of arbitrary garbage.
+On disk, object code is embedded in ELF, a flexible container format
+created for use in UNIX systems. Guile has its own ELF linker and
+loader, so it uses the ELF format on all systems.
@end deffn
@deffn {Scheme Variable} write-objcode objcode file
@deffnx {C Function} scm_write_objcode (objcode)
-Write object code out to a file, prepending the sixteen-byte cookie.
+Embed object code into an ELF container, and write it out to a file.
+
+This procedure is part of a separate module, @code{(language objcode
+elf)}.
@end deffn
address@hidden {Scheme Variable} objcode->bytecode objcode
address@hidden {Scheme Variable} objcode->bytecode objcode [endianness]
@deffnx {C Function} scm_objcode_to_bytecode (objcode)
-Copy object code out to a bytevector for analysis by Scheme.
+Copy object code out to a bytevector for analysis by Scheme. By
+default, the length fields in the @code{struct scm_objcode} are
+interpreted in the native byte order.
@end deffn
The following procedure is actually in @code{(system vm program)}, but
diff --git a/libguile/Makefile.am b/libguile/Makefile.am
index 68d503e..e098825 100644
--- a/libguile/Makefile.am
+++ b/libguile/Makefile.am
@@ -455,6 +455,7 @@ install-exec-hook:
## Perhaps we can deal with them normally once the merge seems to be
## working.
noinst_HEADERS = conv-integer.i.c conv-uinteger.i.c \
+ elf.h \
srfi-14.i.c \
quicksort.i.c \
win32-uname.h win32-socket.h \
diff --git a/libguile/elf.h b/libguile/elf.h
new file mode 100644
index 0000000..9d53721
--- /dev/null
+++ b/libguile/elf.h
@@ -0,0 +1,2794 @@
+/* This file defines standard ELF types, structures, and macros.
+ Copyright (C) 1995-2003,2004,2005,2006,2007,2008,2009,2010
+ Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _ELF_H
+#define _ELF_H 1
+
+/* Standard ELF types. */
+
+#include <stdint.h>
+
+/* Type for a 16-bit quantity. */
+typedef uint16_t Elf32_Half;
+typedef uint16_t Elf64_Half;
+
+/* Types for signed and unsigned 32-bit quantities. */
+typedef uint32_t Elf32_Word;
+typedef int32_t Elf32_Sword;
+typedef uint32_t Elf64_Word;
+typedef int32_t Elf64_Sword;
+
+/* Types for signed and unsigned 64-bit quantities. */
+typedef uint64_t Elf32_Xword;
+typedef int64_t Elf32_Sxword;
+typedef uint64_t Elf64_Xword;
+typedef int64_t Elf64_Sxword;
+
+/* Type of addresses. */
+typedef uint32_t Elf32_Addr;
+typedef uint64_t Elf64_Addr;
+
+/* Type of file offsets. */
+typedef uint32_t Elf32_Off;
+typedef uint64_t Elf64_Off;
+
+/* Type for section indices, which are 16-bit quantities. */
+typedef uint16_t Elf32_Section;
+typedef uint16_t Elf64_Section;
+
+/* Type for version symbol information. */
+typedef Elf32_Half Elf32_Versym;
+typedef Elf64_Half Elf64_Versym;
+
+
+/* The ELF file header. This appears at the start of every ELF file. */
+
+#define EI_NIDENT (16)
+
+typedef struct
+{
+ unsigned char e_ident[EI_NIDENT]; /* Magic number and other info
*/
+ Elf32_Half e_type; /* Object file type */
+ Elf32_Half e_machine; /* Architecture */
+ Elf32_Word e_version; /* Object file version */
+ Elf32_Addr e_entry; /* Entry point virtual address */
+ Elf32_Off e_phoff; /* Program header table file offset */
+ Elf32_Off e_shoff; /* Section header table file offset */
+ Elf32_Word e_flags; /* Processor-specific flags */
+ Elf32_Half e_ehsize; /* ELF header size in bytes */
+ Elf32_Half e_phentsize; /* Program header table entry size */
+ Elf32_Half e_phnum; /* Program header table entry count */
+ Elf32_Half e_shentsize; /* Section header table entry size */
+ Elf32_Half e_shnum; /* Section header table entry count */
+ Elf32_Half e_shstrndx; /* Section header string table index */
+} Elf32_Ehdr;
+
+typedef struct
+{
+ unsigned char e_ident[EI_NIDENT]; /* Magic number and other info
*/
+ Elf64_Half e_type; /* Object file type */
+ Elf64_Half e_machine; /* Architecture */
+ Elf64_Word e_version; /* Object file version */
+ Elf64_Addr e_entry; /* Entry point virtual address */
+ Elf64_Off e_phoff; /* Program header table file offset */
+ Elf64_Off e_shoff; /* Section header table file offset */
+ Elf64_Word e_flags; /* Processor-specific flags */
+ Elf64_Half e_ehsize; /* ELF header size in bytes */
+ Elf64_Half e_phentsize; /* Program header table entry size */
+ Elf64_Half e_phnum; /* Program header table entry count */
+ Elf64_Half e_shentsize; /* Section header table entry size */
+ Elf64_Half e_shnum; /* Section header table entry count */
+ Elf64_Half e_shstrndx; /* Section header string table index */
+} Elf64_Ehdr;
+
+/* Fields in the e_ident array. The EI_* macros are indices into the
+ array. The macros under each EI_* macro are the values the byte
+ may have. */
+
+#define EI_MAG0 0 /* File identification byte 0
index */
+#define ELFMAG0 0x7f /* Magic number byte 0 */
+
+#define EI_MAG1 1 /* File identification byte 1
index */
+#define ELFMAG1 'E' /* Magic number byte 1 */
+
+#define EI_MAG2 2 /* File identification byte 2
index */
+#define ELFMAG2 'L' /* Magic number byte 2 */
+
+#define EI_MAG3 3 /* File identification byte 3
index */
+#define ELFMAG3 'F' /* Magic number byte 3 */
+
+/* Conglomeration of the identification bytes, for easy testing as a word. */
+#define ELFMAG "\177ELF"
+#define SELFMAG 4
+
+#define EI_CLASS 4 /* File class byte index */
+#define ELFCLASSNONE 0 /* Invalid class */
+#define ELFCLASS32 1 /* 32-bit objects */
+#define ELFCLASS64 2 /* 64-bit objects */
+#define ELFCLASSNUM 3
+
+#define EI_DATA 5 /* Data encoding byte index */
+#define ELFDATANONE 0 /* Invalid data encoding */
+#define ELFDATA2LSB 1 /* 2's complement, little endian */
+#define ELFDATA2MSB 2 /* 2's complement, big endian */
+#define ELFDATANUM 3
+
+#define EI_VERSION 6 /* File version byte index */
+ /* Value must be EV_CURRENT */
+
+#define EI_OSABI 7 /* OS ABI identification */
+#define ELFOSABI_NONE 0 /* UNIX System V ABI */
+#define ELFOSABI_SYSV 0 /* Alias. */
+#define ELFOSABI_HPUX 1 /* HP-UX */
+#define ELFOSABI_NETBSD 2 /* NetBSD. */
+#define ELFOSABI_GNU 3 /* GNU. */
+#define ELFOSABI_LINUX 3 /* Alias for ELFOSABI_GNU. */
+#define ELFOSABI_SOLARIS 6 /* Sun Solaris. */
+#define ELFOSABI_AIX 7 /* IBM AIX. */
+#define ELFOSABI_IRIX 8 /* SGI Irix. */
+#define ELFOSABI_FREEBSD 9 /* FreeBSD. */
+#define ELFOSABI_TRU64 10 /* Compaq TRU64 UNIX. */
+#define ELFOSABI_MODESTO 11 /* Novell Modesto. */
+#define ELFOSABI_OPENBSD 12 /* OpenBSD. */
+#define ELFOSABI_ARM_AEABI 64 /* ARM EABI */
+#define ELFOSABI_ARM 97 /* ARM */
+#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
+
+#define EI_ABIVERSION 8 /* ABI version */
+
+#define EI_PAD 9 /* Byte index of padding bytes */
+
+/* Legal values for e_type (object file type). */
+
+#define ET_NONE 0 /* No file type */
+#define ET_REL 1 /* Relocatable file */
+#define ET_EXEC 2 /* Executable file */
+#define ET_DYN 3 /* Shared object file */
+#define ET_CORE 4 /* Core file */
+#define ET_NUM 5 /* Number of defined types */
+#define ET_LOOS 0xfe00 /* OS-specific range start */
+#define ET_HIOS 0xfeff /* OS-specific range end */
+#define ET_LOPROC 0xff00 /* Processor-specific range start */
+#define ET_HIPROC 0xffff /* Processor-specific range end */
+
+/* Legal values for e_machine (architecture). */
+
+#define EM_NONE 0 /* No machine */
+#define EM_M32 1 /* AT&T WE 32100 */
+#define EM_SPARC 2 /* SUN SPARC */
+#define EM_386 3 /* Intel 80386 */
+#define EM_68K 4 /* Motorola m68k family */
+#define EM_88K 5 /* Motorola m88k family */
+#define EM_860 7 /* Intel 80860 */
+#define EM_MIPS 8 /* MIPS R3000 big-endian */
+#define EM_S370 9 /* IBM System/370 */
+#define EM_MIPS_RS3_LE 10 /* MIPS R3000 little-endian */
+
+#define EM_PARISC 15 /* HPPA */
+#define EM_VPP500 17 /* Fujitsu VPP500 */
+#define EM_SPARC32PLUS 18 /* Sun's "v8plus" */
+#define EM_960 19 /* Intel 80960 */
+#define EM_PPC 20 /* PowerPC */
+#define EM_PPC64 21 /* PowerPC 64-bit */
+#define EM_S390 22 /* IBM S390 */
+
+#define EM_V800 36 /* NEC V800 series */
+#define EM_FR20 37 /* Fujitsu FR20 */
+#define EM_RH32 38 /* TRW RH-32 */
+#define EM_RCE 39 /* Motorola RCE */
+#define EM_ARM 40 /* ARM */
+#define EM_FAKE_ALPHA 41 /* Digital Alpha */
+#define EM_SH 42 /* Hitachi SH */
+#define EM_SPARCV9 43 /* SPARC v9 64-bit */
+#define EM_TRICORE 44 /* Siemens Tricore */
+#define EM_ARC 45 /* Argonaut RISC Core */
+#define EM_H8_300 46 /* Hitachi H8/300 */
+#define EM_H8_300H 47 /* Hitachi H8/300H */
+#define EM_H8S 48 /* Hitachi H8S */
+#define EM_H8_500 49 /* Hitachi H8/500 */
+#define EM_IA_64 50 /* Intel Merced */
+#define EM_MIPS_X 51 /* Stanford MIPS-X */
+#define EM_COLDFIRE 52 /* Motorola Coldfire */
+#define EM_68HC12 53 /* Motorola M68HC12 */
+#define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator*/
+#define EM_PCP 55 /* Siemens PCP */
+#define EM_NCPU 56 /* Sony nCPU embeeded RISC */
+#define EM_NDR1 57 /* Denso NDR1 microprocessor */
+#define EM_STARCORE 58 /* Motorola Start*Core processor */
+#define EM_ME16 59 /* Toyota ME16 processor */
+#define EM_ST100 60 /* STMicroelectronic ST100 processor */
+#define EM_TINYJ 61 /* Advanced Logic Corp. Tinyj emb.fam*/
+#define EM_X86_64 62 /* AMD x86-64 architecture */
+#define EM_PDSP 63 /* Sony DSP Processor */
+
+#define EM_FX66 66 /* Siemens FX66 microcontroller
*/
+#define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 mc */
+#define EM_ST7 68 /* STmicroelectronics ST7 8 bit mc */
+#define EM_68HC16 69 /* Motorola MC68HC16 microcontroller */
+#define EM_68HC11 70 /* Motorola MC68HC11 microcontroller */
+#define EM_68HC08 71 /* Motorola MC68HC08 microcontroller */
+#define EM_68HC05 72 /* Motorola MC68HC05 microcontroller */
+#define EM_SVX 73 /* Silicon Graphics SVx */
+#define EM_ST19 74 /* STMicroelectronics ST19 8
bit mc */
+#define EM_VAX 75 /* Digital VAX */
+#define EM_CRIS 76 /* Axis Communications 32-bit
embedded processor */
+#define EM_JAVELIN 77 /* Infineon Technologies 32-bit
embedded processor */
+#define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */
+#define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */
+#define EM_MMIX 80 /* Donald Knuth's educational
64-bit processor */
+#define EM_HUANY 81 /* Harvard University
machine-independent object files */
+#define EM_PRISM 82 /* SiTera Prism */
+#define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */
+#define EM_FR30 84 /* Fujitsu FR30 */
+#define EM_D10V 85 /* Mitsubishi D10V */
+#define EM_D30V 86 /* Mitsubishi D30V */
+#define EM_V850 87 /* NEC v850 */
+#define EM_M32R 88 /* Mitsubishi M32R */
+#define EM_MN10300 89 /* Matsushita MN10300 */
+#define EM_MN10200 90 /* Matsushita MN10200 */
+#define EM_PJ 91 /* picoJava */
+#define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */
+#define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */
+#define EM_XTENSA 94 /* Tensilica Xtensa Architecture */
+#define EM_NUM 95
+
+/* If it is necessary to assign new unofficial EM_* values, please
+ pick large random numbers (0x8523, 0xa7f2, etc.) to minimize the
+ chances of collision with official or non-GNU unofficial values. */
+
+#define EM_ALPHA 0x9026
+
+/* Legal values for e_version (version). */
+
+#define EV_NONE 0 /* Invalid ELF version */
+#define EV_CURRENT 1 /* Current version */
+#define EV_NUM 2
+
+/* Section header. */
+
+typedef struct
+{
+ Elf32_Word sh_name; /* Section name (string tbl index) */
+ Elf32_Word sh_type; /* Section type */
+ Elf32_Word sh_flags; /* Section flags */
+ Elf32_Addr sh_addr; /* Section virtual addr at execution */
+ Elf32_Off sh_offset; /* Section file offset */
+ Elf32_Word sh_size; /* Section size in bytes */
+ Elf32_Word sh_link; /* Link to another section */
+ Elf32_Word sh_info; /* Additional section information */
+ Elf32_Word sh_addralign; /* Section alignment */
+ Elf32_Word sh_entsize; /* Entry size if section holds table */
+} Elf32_Shdr;
+
+typedef struct
+{
+ Elf64_Word sh_name; /* Section name (string tbl index) */
+ Elf64_Word sh_type; /* Section type */
+ Elf64_Xword sh_flags; /* Section flags */
+ Elf64_Addr sh_addr; /* Section virtual addr at execution */
+ Elf64_Off sh_offset; /* Section file offset */
+ Elf64_Xword sh_size; /* Section size in bytes */
+ Elf64_Word sh_link; /* Link to another section */
+ Elf64_Word sh_info; /* Additional section information */
+ Elf64_Xword sh_addralign; /* Section alignment */
+ Elf64_Xword sh_entsize; /* Entry size if section holds table */
+} Elf64_Shdr;
+
+/* Special section indices. */
+
+#define SHN_UNDEF 0 /* Undefined section */
+#define SHN_LORESERVE 0xff00 /* Start of reserved indices */
+#define SHN_LOPROC 0xff00 /* Start of processor-specific */
+#define SHN_BEFORE 0xff00 /* Order section before all others
+ (Solaris). */
+#define SHN_AFTER 0xff01 /* Order section after all others
+ (Solaris). */
+#define SHN_HIPROC 0xff1f /* End of processor-specific */
+#define SHN_LOOS 0xff20 /* Start of OS-specific */
+#define SHN_HIOS 0xff3f /* End of OS-specific */
+#define SHN_ABS 0xfff1 /* Associated symbol is
absolute */
+#define SHN_COMMON 0xfff2 /* Associated symbol is common */
+#define SHN_XINDEX 0xffff /* Index is in extra table. */
+#define SHN_HIRESERVE 0xffff /* End of reserved indices */
+
+/* Legal values for sh_type (section type). */
+
+#define SHT_NULL 0 /* Section header table entry unused */
+#define SHT_PROGBITS 1 /* Program data */
+#define SHT_SYMTAB 2 /* Symbol table */
+#define SHT_STRTAB 3 /* String table */
+#define SHT_RELA 4 /* Relocation entries with addends */
+#define SHT_HASH 5 /* Symbol hash table */
+#define SHT_DYNAMIC 6 /* Dynamic linking information */
+#define SHT_NOTE 7 /* Notes */
+#define SHT_NOBITS 8 /* Program space with no data (bss) */
+#define SHT_REL 9 /* Relocation entries, no
addends */
+#define SHT_SHLIB 10 /* Reserved */
+#define SHT_DYNSYM 11 /* Dynamic linker symbol table */
+#define SHT_INIT_ARRAY 14 /* Array of constructors */
+#define SHT_FINI_ARRAY 15 /* Array of destructors */
+#define SHT_PREINIT_ARRAY 16 /* Array of pre-constructors */
+#define SHT_GROUP 17 /* Section group */
+#define SHT_SYMTAB_SHNDX 18 /* Extended section indeces */
+#define SHT_NUM 19 /* Number of defined types. */
+#define SHT_LOOS 0x60000000 /* Start OS-specific. */
+#define SHT_GNU_ATTRIBUTES 0x6ffffff5 /* Object attributes. */
+#define SHT_GNU_HASH 0x6ffffff6 /* GNU-style hash table. */
+#define SHT_GNU_LIBLIST 0x6ffffff7 /* Prelink library list */
+#define SHT_CHECKSUM 0x6ffffff8 /* Checksum for DSO content. */
+#define SHT_LOSUNW 0x6ffffffa /* Sun-specific low bound. */
+#define SHT_SUNW_move 0x6ffffffa
+#define SHT_SUNW_COMDAT 0x6ffffffb
+#define SHT_SUNW_syminfo 0x6ffffffc
+#define SHT_GNU_verdef 0x6ffffffd /* Version definition section. */
+#define SHT_GNU_verneed 0x6ffffffe /* Version needs section. */
+#define SHT_GNU_versym 0x6fffffff /* Version symbol table. */
+#define SHT_HISUNW 0x6fffffff /* Sun-specific high bound. */
+#define SHT_HIOS 0x6fffffff /* End OS-specific type */
+#define SHT_LOPROC 0x70000000 /* Start of processor-specific */
+#define SHT_HIPROC 0x7fffffff /* End of processor-specific */
+#define SHT_LOUSER 0x80000000 /* Start of application-specific */
+#define SHT_HIUSER 0x8fffffff /* End of application-specific */
+
+/* Legal values for sh_flags (section flags). */
+
+#define SHF_WRITE (1 << 0) /* Writable */
+#define SHF_ALLOC (1 << 1) /* Occupies memory during execution */
+#define SHF_EXECINSTR (1 << 2) /* Executable */
+#define SHF_MERGE (1 << 4) /* Might be merged */
+#define SHF_STRINGS (1 << 5) /* Contains nul-terminated strings */
+#define SHF_INFO_LINK (1 << 6) /* `sh_info' contains SHT index */
+#define SHF_LINK_ORDER (1 << 7) /* Preserve order after combining */
+#define SHF_OS_NONCONFORMING (1 << 8) /* Non-standard OS specific handling
+ required */
+#define SHF_GROUP (1 << 9) /* Section is member of a group. */
+#define SHF_TLS (1 << 10) /* Section hold thread-local
data. */
+#define SHF_MASKOS 0x0ff00000 /* OS-specific. */
+#define SHF_MASKPROC 0xf0000000 /* Processor-specific */
+#define SHF_ORDERED (1 << 30) /* Special ordering requirement
+ (Solaris). */
+#define SHF_EXCLUDE (1 << 31) /* Section is excluded unless
+ referenced or allocated (Solaris).*/
+
+/* Section group handling. */
+#define GRP_COMDAT 0x1 /* Mark group as COMDAT. */
+
+/* Symbol table entry. */
+
+typedef struct
+{
+ Elf32_Word st_name; /* Symbol name (string tbl index) */
+ Elf32_Addr st_value; /* Symbol value */
+ Elf32_Word st_size; /* Symbol size */
+ unsigned char st_info; /* Symbol type and binding */
+ unsigned char st_other; /* Symbol visibility */
+ Elf32_Section st_shndx; /* Section index */
+} Elf32_Sym;
+
+typedef struct
+{
+ Elf64_Word st_name; /* Symbol name (string tbl index) */
+ unsigned char st_info; /* Symbol type and binding */
+ unsigned char st_other; /* Symbol visibility */
+ Elf64_Section st_shndx; /* Section index */
+ Elf64_Addr st_value; /* Symbol value */
+ Elf64_Xword st_size; /* Symbol size */
+} Elf64_Sym;
+
+/* The syminfo section if available contains additional information about
+ every dynamic symbol. */
+
+typedef struct
+{
+ Elf32_Half si_boundto; /* Direct bindings, symbol bound to */
+ Elf32_Half si_flags; /* Per symbol flags */
+} Elf32_Syminfo;
+
+typedef struct
+{
+ Elf64_Half si_boundto; /* Direct bindings, symbol bound to */
+ Elf64_Half si_flags; /* Per symbol flags */
+} Elf64_Syminfo;
+
+/* Possible values for si_boundto. */
+#define SYMINFO_BT_SELF 0xffff /* Symbol bound to self */
+#define SYMINFO_BT_PARENT 0xfffe /* Symbol bound to parent */
+#define SYMINFO_BT_LOWRESERVE 0xff00 /* Beginning of reserved entries */
+
+/* Possible bitmasks for si_flags. */
+#define SYMINFO_FLG_DIRECT 0x0001 /* Direct bound symbol */
+#define SYMINFO_FLG_PASSTHRU 0x0002 /* Pass-thru symbol for translator */
+#define SYMINFO_FLG_COPY 0x0004 /* Symbol is a copy-reloc */
+#define SYMINFO_FLG_LAZYLOAD 0x0008 /* Symbol bound to object to be lazy
+ loaded */
+/* Syminfo version values. */
+#define SYMINFO_NONE 0
+#define SYMINFO_CURRENT 1
+#define SYMINFO_NUM 2
+
+
+/* How to extract and insert information held in the st_info field. */
+
+#define ELF32_ST_BIND(val) (((unsigned char) (val)) >> 4)
+#define ELF32_ST_TYPE(val) ((val) & 0xf)
+#define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf))
+
+/* Both Elf32_Sym and Elf64_Sym use the same one-byte st_info field. */
+#define ELF64_ST_BIND(val) ELF32_ST_BIND (val)
+#define ELF64_ST_TYPE(val) ELF32_ST_TYPE (val)
+#define ELF64_ST_INFO(bind, type) ELF32_ST_INFO ((bind), (type))
+
+/* Legal values for ST_BIND subfield of st_info (symbol binding). */
+
+#define STB_LOCAL 0 /* Local symbol */
+#define STB_GLOBAL 1 /* Global symbol */
+#define STB_WEAK 2 /* Weak symbol */
+#define STB_NUM 3 /* Number of defined types. */
+#define STB_LOOS 10 /* Start of OS-specific */
+#define STB_GNU_UNIQUE 10 /* Unique symbol. */
+#define STB_HIOS 12 /* End of OS-specific */
+#define STB_LOPROC 13 /* Start of processor-specific */
+#define STB_HIPROC 15 /* End of processor-specific */
+
+/* Legal values for ST_TYPE subfield of st_info (symbol type). */
+
+#define STT_NOTYPE 0 /* Symbol type is unspecified */
+#define STT_OBJECT 1 /* Symbol is a data object */
+#define STT_FUNC 2 /* Symbol is a code object */
+#define STT_SECTION 3 /* Symbol associated with a section */
+#define STT_FILE 4 /* Symbol's name is file name */
+#define STT_COMMON 5 /* Symbol is a common data object */
+#define STT_TLS 6 /* Symbol is thread-local data
object*/
+#define STT_NUM 7 /* Number of defined types. */
+#define STT_LOOS 10 /* Start of OS-specific */
+#define STT_GNU_IFUNC 10 /* Symbol is indirect code object */
+#define STT_HIOS 12 /* End of OS-specific */
+#define STT_LOPROC 13 /* Start of processor-specific */
+#define STT_HIPROC 15 /* End of processor-specific */
+
+
+/* Symbol table indices are found in the hash buckets and chain table
+ of a symbol hash table section. This special index value indicates
+ the end of a chain, meaning no further symbols are found in that bucket. */
+
+#define STN_UNDEF 0 /* End of a chain. */
+
+
+/* How to extract and insert information held in the st_other field. */
+
+#define ELF32_ST_VISIBILITY(o) ((o) & 0x03)
+
+/* For ELF64 the definitions are the same. */
+#define ELF64_ST_VISIBILITY(o) ELF32_ST_VISIBILITY (o)
+
+/* Symbol visibility specification encoded in the st_other field. */
+#define STV_DEFAULT 0 /* Default symbol visibility rules */
+#define STV_INTERNAL 1 /* Processor specific hidden class */
+#define STV_HIDDEN 2 /* Sym unavailable in other modules */
+#define STV_PROTECTED 3 /* Not preemptible, not exported */
+
+
+/* Relocation table entry without addend (in section of type SHT_REL). */
+
+typedef struct
+{
+ Elf32_Addr r_offset; /* Address */
+ Elf32_Word r_info; /* Relocation type and symbol index */
+} Elf32_Rel;
+
+/* I have seen two different definitions of the Elf64_Rel and
+ Elf64_Rela structures, so we'll leave them out until Novell (or
+ whoever) gets their act together. */
+/* The following, at least, is used on Sparc v9, MIPS, and Alpha. */
+
+typedef struct
+{
+ Elf64_Addr r_offset; /* Address */
+ Elf64_Xword r_info; /* Relocation type and symbol index */
+} Elf64_Rel;
+
+/* Relocation table entry with addend (in section of type SHT_RELA). */
+
+typedef struct
+{
+ Elf32_Addr r_offset; /* Address */
+ Elf32_Word r_info; /* Relocation type and symbol index */
+ Elf32_Sword r_addend; /* Addend */
+} Elf32_Rela;
+
+typedef struct
+{
+ Elf64_Addr r_offset; /* Address */
+ Elf64_Xword r_info; /* Relocation type and symbol index */
+ Elf64_Sxword r_addend; /* Addend */
+} Elf64_Rela;
+
+/* How to extract and insert information held in the r_info field. */
+
+#define ELF32_R_SYM(val) ((val) >> 8)
+#define ELF32_R_TYPE(val) ((val) & 0xff)
+#define ELF32_R_INFO(sym, type) (((sym) << 8) + ((type) & 0xff))
+
+#define ELF64_R_SYM(i) ((i) >> 32)
+#define ELF64_R_TYPE(i) ((i) & 0xffffffff)
+#define ELF64_R_INFO(sym,type) ((((Elf64_Xword) (sym)) << 32) + (type))
+
+/* Program segment header. */
+
+typedef struct
+{
+ Elf32_Word p_type; /* Segment type */
+ Elf32_Off p_offset; /* Segment file offset */
+ Elf32_Addr p_vaddr; /* Segment virtual address */
+ Elf32_Addr p_paddr; /* Segment physical address */
+ Elf32_Word p_filesz; /* Segment size in file */
+ Elf32_Word p_memsz; /* Segment size in memory */
+ Elf32_Word p_flags; /* Segment flags */
+ Elf32_Word p_align; /* Segment alignment */
+} Elf32_Phdr;
+
+typedef struct
+{
+ Elf64_Word p_type; /* Segment type */
+ Elf64_Word p_flags; /* Segment flags */
+ Elf64_Off p_offset; /* Segment file offset */
+ Elf64_Addr p_vaddr; /* Segment virtual address */
+ Elf64_Addr p_paddr; /* Segment physical address */
+ Elf64_Xword p_filesz; /* Segment size in file */
+ Elf64_Xword p_memsz; /* Segment size in memory */
+ Elf64_Xword p_align; /* Segment alignment */
+} Elf64_Phdr;
+
+/* Special value for e_phnum. This indicates that the real number of
+ program headers is too large to fit into e_phnum. Instead the real
+ value is in the field sh_info of section 0. */
+
+#define PN_XNUM 0xffff
+
+/* Legal values for p_type (segment type). */
+
+#define PT_NULL 0 /* Program header table entry
unused */
+#define PT_LOAD 1 /* Loadable program segment */
+#define PT_DYNAMIC 2 /* Dynamic linking information */
+#define PT_INTERP 3 /* Program interpreter */
+#define PT_NOTE 4 /* Auxiliary information */
+#define PT_SHLIB 5 /* Reserved */
+#define PT_PHDR 6 /* Entry for header table
itself */
+#define PT_TLS 7 /* Thread-local storage segment */
+#define PT_NUM 8 /* Number of defined types */
+#define PT_LOOS 0x60000000 /* Start of OS-specific */
+#define PT_GNU_EH_FRAME 0x6474e550 /* GCC .eh_frame_hdr segment */
+#define PT_GNU_STACK 0x6474e551 /* Indicates stack executability */
+#define PT_GNU_RELRO 0x6474e552 /* Read-only after relocation */
+#define PT_LOSUNW 0x6ffffffa
+#define PT_SUNWBSS 0x6ffffffa /* Sun Specific segment */
+#define PT_SUNWSTACK 0x6ffffffb /* Stack segment */
+#define PT_HISUNW 0x6fffffff
+#define PT_HIOS 0x6fffffff /* End of OS-specific */
+#define PT_LOPROC 0x70000000 /* Start of processor-specific */
+#define PT_HIPROC 0x7fffffff /* End of processor-specific */
+
+/* Legal values for p_flags (segment flags). */
+
+#define PF_X (1 << 0) /* Segment is executable */
+#define PF_W (1 << 1) /* Segment is writable */
+#define PF_R (1 << 2) /* Segment is readable */
+#define PF_MASKOS 0x0ff00000 /* OS-specific */
+#define PF_MASKPROC 0xf0000000 /* Processor-specific */
+
+/* Legal values for note segment descriptor types for core files. */
+
+#define NT_PRSTATUS 1 /* Contains copy of prstatus struct */
+#define NT_FPREGSET 2 /* Contains copy of fpregset struct */
+#define NT_PRPSINFO 3 /* Contains copy of prpsinfo struct */
+#define NT_PRXREG 4 /* Contains copy of prxregset struct */
+#define NT_TASKSTRUCT 4 /* Contains copy of task structure */
+#define NT_PLATFORM 5 /* String from sysinfo(SI_PLATFORM) */
+#define NT_AUXV 6 /* Contains copy of auxv array
*/
+#define NT_GWINDOWS 7 /* Contains copy of gwindows struct */
+#define NT_ASRS 8 /* Contains copy of asrset
struct */
+#define NT_PSTATUS 10 /* Contains copy of pstatus struct */
+#define NT_PSINFO 13 /* Contains copy of psinfo struct */
+#define NT_PRCRED 14 /* Contains copy of prcred struct */
+#define NT_UTSNAME 15 /* Contains copy of utsname struct */
+#define NT_LWPSTATUS 16 /* Contains copy of lwpstatus struct */
+#define NT_LWPSINFO 17 /* Contains copy of lwpinfo struct */
+#define NT_PRFPXREG 20 /* Contains copy of fprxregset struct */
+#define NT_PRXFPREG 0x46e62b7f /* Contains copy of user_fxsr_struct */
+#define NT_PPC_VMX 0x100 /* PowerPC Altivec/VMX registers */
+#define NT_PPC_SPE 0x101 /* PowerPC SPE/EVR registers */
+#define NT_PPC_VSX 0x102 /* PowerPC VSX registers */
+#define NT_386_TLS 0x200 /* i386 TLS slots (struct user_desc) */
+#define NT_386_IOPERM 0x201 /* x86 io permission bitmap (1=deny) */
+#define NT_X86_XSTATE 0x202 /* x86 extended state using xsave */
+
+/* Legal values for the note segment descriptor types for object files. */
+
+#define NT_VERSION 1 /* Contains a version string. */
+
+
+/* Dynamic section entry. */
+
+typedef struct
+{
+ Elf32_Sword d_tag; /* Dynamic entry type */
+ union
+ {
+ Elf32_Word d_val; /* Integer value */
+ Elf32_Addr d_ptr; /* Address value */
+ } d_un;
+} Elf32_Dyn;
+
+typedef struct
+{
+ Elf64_Sxword d_tag; /* Dynamic entry type */
+ union
+ {
+ Elf64_Xword d_val; /* Integer value */
+ Elf64_Addr d_ptr; /* Address value */
+ } d_un;
+} Elf64_Dyn;
+
+/* Legal values for d_tag (dynamic entry type). */
+
+#define DT_NULL 0 /* Marks end of dynamic section
*/
+#define DT_NEEDED 1 /* Name of needed library */
+#define DT_PLTRELSZ 2 /* Size in bytes of PLT relocs */
+#define DT_PLTGOT 3 /* Processor defined value */
+#define DT_HASH 4 /* Address of symbol hash table
*/
+#define DT_STRTAB 5 /* Address of string table */
+#define DT_SYMTAB 6 /* Address of symbol table */
+#define DT_RELA 7 /* Address of Rela relocs */
+#define DT_RELASZ 8 /* Total size of Rela relocs */
+#define DT_RELAENT 9 /* Size of one Rela reloc */
+#define DT_STRSZ 10 /* Size of string table */
+#define DT_SYMENT 11 /* Size of one symbol table entry */
+#define DT_INIT 12 /* Address of init function */
+#define DT_FINI 13 /* Address of termination
function */
+#define DT_SONAME 14 /* Name of shared object */
+#define DT_RPATH 15 /* Library search path (deprecated) */
+#define DT_SYMBOLIC 16 /* Start symbol search here */
+#define DT_REL 17 /* Address of Rel relocs */
+#define DT_RELSZ 18 /* Total size of Rel relocs */
+#define DT_RELENT 19 /* Size of one Rel reloc */
+#define DT_PLTREL 20 /* Type of reloc in PLT */
+#define DT_DEBUG 21 /* For debugging; unspecified */
+#define DT_TEXTREL 22 /* Reloc might modify .text */
+#define DT_JMPREL 23 /* Address of PLT relocs */
+#define DT_BIND_NOW 24 /* Process relocations of
object */
+#define DT_INIT_ARRAY 25 /* Array with addresses of init
fct */
+#define DT_FINI_ARRAY 26 /* Array with addresses of fini
fct */
+#define DT_INIT_ARRAYSZ 27 /* Size in bytes of
DT_INIT_ARRAY */
+#define DT_FINI_ARRAYSZ 28 /* Size in bytes of
DT_FINI_ARRAY */
+#define DT_RUNPATH 29 /* Library search path */
+#define DT_FLAGS 30 /* Flags for the object being loaded */
+#define DT_ENCODING 32 /* Start of encoded range */
+#define DT_PREINIT_ARRAY 32 /* Array with addresses of preinit fct*/
+#define DT_PREINIT_ARRAYSZ 33 /* size in bytes of DT_PREINIT_ARRAY */
+#define DT_NUM 34 /* Number used */
+#define DT_LOOS 0x6000000d /* Start of OS-specific */
+#define DT_HIOS 0x6ffff000 /* End of OS-specific */
+#define DT_LOPROC 0x70000000 /* Start of processor-specific */
+#define DT_HIPROC 0x7fffffff /* End of processor-specific */
+#define DT_PROCNUM DT_MIPS_NUM /* Most used by any processor */
+
+/* DT_* entries which fall between DT_VALRNGHI & DT_VALRNGLO use the
+ Dyn.d_un.d_val field of the Elf*_Dyn structure. This follows Sun's
+ approach. */
+#define DT_VALRNGLO 0x6ffffd00
+#define DT_GNU_PRELINKED 0x6ffffdf5 /* Prelinking timestamp */
+#define DT_GNU_CONFLICTSZ 0x6ffffdf6 /* Size of conflict section */
+#define DT_GNU_LIBLISTSZ 0x6ffffdf7 /* Size of library list */
+#define DT_CHECKSUM 0x6ffffdf8
+#define DT_PLTPADSZ 0x6ffffdf9
+#define DT_MOVEENT 0x6ffffdfa
+#define DT_MOVESZ 0x6ffffdfb
+#define DT_FEATURE_1 0x6ffffdfc /* Feature selection (DTF_*). */
+#define DT_POSFLAG_1 0x6ffffdfd /* Flags for DT_* entries, effecting
+ the following DT_* entry. */
+#define DT_SYMINSZ 0x6ffffdfe /* Size of syminfo table (in bytes) */
+#define DT_SYMINENT 0x6ffffdff /* Entry size of syminfo */
+#define DT_VALRNGHI 0x6ffffdff
+#define DT_VALTAGIDX(tag) (DT_VALRNGHI - (tag)) /* Reverse order! */
+#define DT_VALNUM 12
+
+/* DT_* entries which fall between DT_ADDRRNGHI & DT_ADDRRNGLO use the
+ Dyn.d_un.d_ptr field of the Elf*_Dyn structure.
+
+ If any adjustment is made to the ELF object after it has been
+ built these entries will need to be adjusted. */
+#define DT_ADDRRNGLO 0x6ffffe00
+#define DT_GNU_HASH 0x6ffffef5 /* GNU-style hash table. */
+#define DT_TLSDESC_PLT 0x6ffffef6
+#define DT_TLSDESC_GOT 0x6ffffef7
+#define DT_GNU_CONFLICT 0x6ffffef8 /* Start of conflict section */
+#define DT_GNU_LIBLIST 0x6ffffef9 /* Library list */
+#define DT_CONFIG 0x6ffffefa /* Configuration information. */
+#define DT_DEPAUDIT 0x6ffffefb /* Dependency auditing. */
+#define DT_AUDIT 0x6ffffefc /* Object auditing. */
+#define DT_PLTPAD 0x6ffffefd /* PLT padding. */
+#define DT_MOVETAB 0x6ffffefe /* Move table. */
+#define DT_SYMINFO 0x6ffffeff /* Syminfo table. */
+#define DT_ADDRRNGHI 0x6ffffeff
+#define DT_ADDRTAGIDX(tag) (DT_ADDRRNGHI - (tag)) /* Reverse order! */
+#define DT_ADDRNUM 11
+
+/* The versioning entry types. The next are defined as part of the
+ GNU extension. */
+#define DT_VERSYM 0x6ffffff0
+
+#define DT_RELACOUNT 0x6ffffff9
+#define DT_RELCOUNT 0x6ffffffa
+
+/* These were chosen by Sun. */
+#define DT_FLAGS_1 0x6ffffffb /* State flags, see DF_1_* below. */
+#define DT_VERDEF 0x6ffffffc /* Address of version definition
+ table */
+#define DT_VERDEFNUM 0x6ffffffd /* Number of version
definitions */
+#define DT_VERNEED 0x6ffffffe /* Address of table with needed
+ versions */
+#define DT_VERNEEDNUM 0x6fffffff /* Number of needed versions */
+#define DT_VERSIONTAGIDX(tag) (DT_VERNEEDNUM - (tag)) /* Reverse order! */
+#define DT_VERSIONTAGNUM 16
+
+/* Sun added these machine-independent extensions in the "processor-specific"
+ range. Be compatible. */
+#define DT_AUXILIARY 0x7ffffffd /* Shared object to load before self */
+#define DT_FILTER 0x7fffffff /* Shared object to get values from */
+#define DT_EXTRATAGIDX(tag) ((Elf32_Word)-((Elf32_Sword) (tag) <<1>>1)-1)
+#define DT_EXTRANUM 3
+
+/* Values of `d_un.d_val' in the DT_FLAGS entry. */
+#define DF_ORIGIN 0x00000001 /* Object may use DF_ORIGIN */
+#define DF_SYMBOLIC 0x00000002 /* Symbol resolutions starts here */
+#define DF_TEXTREL 0x00000004 /* Object contains text relocations */
+#define DF_BIND_NOW 0x00000008 /* No lazy binding for this object */
+#define DF_STATIC_TLS 0x00000010 /* Module uses the static TLS model */
+
+/* State flags selectable in the `d_un.d_val' element of the DT_FLAGS_1
+ entry in the dynamic section. */
+#define DF_1_NOW 0x00000001 /* Set RTLD_NOW for this object. */
+#define DF_1_GLOBAL 0x00000002 /* Set RTLD_GLOBAL for this object. */
+#define DF_1_GROUP 0x00000004 /* Set RTLD_GROUP for this object. */
+#define DF_1_NODELETE 0x00000008 /* Set RTLD_NODELETE for this object.*/
+#define DF_1_LOADFLTR 0x00000010 /* Trigger filtee loading at runtime.*/
+#define DF_1_INITFIRST 0x00000020 /* Set RTLD_INITFIRST for this object*/
+#define DF_1_NOOPEN 0x00000040 /* Set RTLD_NOOPEN for this object. */
+#define DF_1_ORIGIN 0x00000080 /* $ORIGIN must be handled. */
+#define DF_1_DIRECT 0x00000100 /* Direct binding enabled. */
+#define DF_1_TRANS 0x00000200
+#define DF_1_INTERPOSE 0x00000400 /* Object is used to interpose. */
+#define DF_1_NODEFLIB 0x00000800 /* Ignore default lib search path. */
+#define DF_1_NODUMP 0x00001000 /* Object can't be dldump'ed. */
+#define DF_1_CONFALT 0x00002000 /* Configuration alternative created.*/
+#define DF_1_ENDFILTEE 0x00004000 /* Filtee terminates filters search. */
+#define DF_1_DISPRELDNE 0x00008000 /* Disp reloc applied at build
time. */
+#define DF_1_DISPRELPND 0x00010000 /* Disp reloc applied at
run-time. */
+
+/* Flags for the feature selection in DT_FEATURE_1. */
+#define DTF_1_PARINIT 0x00000001
+#define DTF_1_CONFEXP 0x00000002
+
+/* Flags in the DT_POSFLAG_1 entry effecting only the next DT_* entry. */
+#define DF_P1_LAZYLOAD 0x00000001 /* Lazyload following object. */
+#define DF_P1_GROUPPERM 0x00000002 /* Symbols from next object are
not
+ generally available. */
+
+/* Version definition sections. */
+
+typedef struct
+{
+ Elf32_Half vd_version; /* Version revision */
+ Elf32_Half vd_flags; /* Version information */
+ Elf32_Half vd_ndx; /* Version Index */
+ Elf32_Half vd_cnt; /* Number of associated aux entries */
+ Elf32_Word vd_hash; /* Version name hash value */
+ Elf32_Word vd_aux; /* Offset in bytes to verdaux array */
+ Elf32_Word vd_next; /* Offset in bytes to next verdef
+ entry */
+} Elf32_Verdef;
+
+typedef struct
+{
+ Elf64_Half vd_version; /* Version revision */
+ Elf64_Half vd_flags; /* Version information */
+ Elf64_Half vd_ndx; /* Version Index */
+ Elf64_Half vd_cnt; /* Number of associated aux entries */
+ Elf64_Word vd_hash; /* Version name hash value */
+ Elf64_Word vd_aux; /* Offset in bytes to verdaux array */
+ Elf64_Word vd_next; /* Offset in bytes to next verdef
+ entry */
+} Elf64_Verdef;
+
+
+/* Legal values for vd_version (version revision). */
+#define VER_DEF_NONE 0 /* No version */
+#define VER_DEF_CURRENT 1 /* Current version */
+#define VER_DEF_NUM 2 /* Given version number */
+
+/* Legal values for vd_flags (version information flags). */
+#define VER_FLG_BASE 0x1 /* Version definition of file itself */
+#define VER_FLG_WEAK 0x2 /* Weak version identifier */
+
+/* Versym symbol index values. */
+#define VER_NDX_LOCAL 0 /* Symbol is local. */
+#define VER_NDX_GLOBAL 1 /* Symbol is global. */
+#define VER_NDX_LORESERVE 0xff00 /* Beginning of reserved
entries. */
+#define VER_NDX_ELIMINATE 0xff01 /* Symbol is to be eliminated.
*/
+
+/* Auxialiary version information. */
+
+typedef struct
+{
+ Elf32_Word vda_name; /* Version or dependency names */
+ Elf32_Word vda_next; /* Offset in bytes to next verdaux
+ entry */
+} Elf32_Verdaux;
+
+typedef struct
+{
+ Elf64_Word vda_name; /* Version or dependency names */
+ Elf64_Word vda_next; /* Offset in bytes to next verdaux
+ entry */
+} Elf64_Verdaux;
+
+
+/* Version dependency section. */
+
+typedef struct
+{
+ Elf32_Half vn_version; /* Version of structure */
+ Elf32_Half vn_cnt; /* Number of associated aux entries */
+ Elf32_Word vn_file; /* Offset of filename for this
+ dependency */
+ Elf32_Word vn_aux; /* Offset in bytes to vernaux array */
+ Elf32_Word vn_next; /* Offset in bytes to next verneed
+ entry */
+} Elf32_Verneed;
+
+typedef struct
+{
+ Elf64_Half vn_version; /* Version of structure */
+ Elf64_Half vn_cnt; /* Number of associated aux entries */
+ Elf64_Word vn_file; /* Offset of filename for this
+ dependency */
+ Elf64_Word vn_aux; /* Offset in bytes to vernaux array */
+ Elf64_Word vn_next; /* Offset in bytes to next verneed
+ entry */
+} Elf64_Verneed;
+
+
+/* Legal values for vn_version (version revision). */
+#define VER_NEED_NONE 0 /* No version */
+#define VER_NEED_CURRENT 1 /* Current version */
+#define VER_NEED_NUM 2 /* Given version number */
+
+/* Auxiliary needed version information. */
+
+typedef struct
+{
+ Elf32_Word vna_hash; /* Hash value of dependency name */
+ Elf32_Half vna_flags; /* Dependency specific information */
+ Elf32_Half vna_other; /* Unused */
+ Elf32_Word vna_name; /* Dependency name string offset */
+ Elf32_Word vna_next; /* Offset in bytes to next vernaux
+ entry */
+} Elf32_Vernaux;
+
+typedef struct
+{
+ Elf64_Word vna_hash; /* Hash value of dependency name */
+ Elf64_Half vna_flags; /* Dependency specific information */
+ Elf64_Half vna_other; /* Unused */
+ Elf64_Word vna_name; /* Dependency name string offset */
+ Elf64_Word vna_next; /* Offset in bytes to next vernaux
+ entry */
+} Elf64_Vernaux;
+
+
+/* Legal values for vna_flags. */
+#define VER_FLG_WEAK 0x2 /* Weak version identifier */
+
+
+/* Auxiliary vector. */
+
+/* This vector is normally only used by the program interpreter. The
+ usual definition in an ABI supplement uses the name auxv_t. The
+ vector is not usually defined in a standard <elf.h> file, but it
+ can't hurt. We rename it to avoid conflicts. The sizes of these
+ types are an arrangement between the exec server and the program
+ interpreter, so we don't fully specify them here. */
+
+typedef struct
+{
+ uint32_t a_type; /* Entry type */
+ union
+ {
+ uint32_t a_val; /* Integer value */
+ /* We use to have pointer elements added here. We cannot do that,
+ though, since it does not work when using 32-bit definitions
+ on 64-bit platforms and vice versa. */
+ } a_un;
+} Elf32_auxv_t;
+
+typedef struct
+{
+ uint64_t a_type; /* Entry type */
+ union
+ {
+ uint64_t a_val; /* Integer value */
+ /* We use to have pointer elements added here. We cannot do that,
+ though, since it does not work when using 32-bit definitions
+ on 64-bit platforms and vice versa. */
+ } a_un;
+} Elf64_auxv_t;
+
+/* Legal values for a_type (entry type). */
+
+#define AT_NULL 0 /* End of vector */
+#define AT_IGNORE 1 /* Entry should be ignored */
+#define AT_EXECFD 2 /* File descriptor of program */
+#define AT_PHDR 3 /* Program headers for program
*/
+#define AT_PHENT 4 /* Size of program header entry */
+#define AT_PHNUM 5 /* Number of program headers */
+#define AT_PAGESZ 6 /* System page size */
+#define AT_BASE 7 /* Base address of interpreter
*/
+#define AT_FLAGS 8 /* Flags */
+#define AT_ENTRY 9 /* Entry point of program */
+#define AT_NOTELF 10 /* Program is not ELF */
+#define AT_UID 11 /* Real uid */
+#define AT_EUID 12 /* Effective uid */
+#define AT_GID 13 /* Real gid */
+#define AT_EGID 14 /* Effective gid */
+#define AT_CLKTCK 17 /* Frequency of times() */
+
+/* Some more special a_type values describing the hardware. */
+#define AT_PLATFORM 15 /* String identifying platform. */
+#define AT_HWCAP 16 /* Machine dependent hints about
+ processor capabilities. */
+
+/* This entry gives some information about the FPU initialization
+ performed by the kernel. */
+#define AT_FPUCW 18 /* Used FPU control word. */
+
+/* Cache block sizes. */
+#define AT_DCACHEBSIZE 19 /* Data cache block size. */
+#define AT_ICACHEBSIZE 20 /* Instruction cache block size. */
+#define AT_UCACHEBSIZE 21 /* Unified cache block size. */
+
+/* A special ignored value for PPC, used by the kernel to control the
+ interpretation of the AUXV. Must be > 16. */
+#define AT_IGNOREPPC 22 /* Entry should be ignored. */
+
+#define AT_SECURE 23 /* Boolean, was exec
setuid-like? */
+
+#define AT_BASE_PLATFORM 24 /* String identifying real platforms.*/
+
+#define AT_RANDOM 25 /* Address of 16 random bytes. */
+
+#define AT_EXECFN 31 /* Filename of executable. */
+
+/* Pointer to the global system page used for system calls and other
+ nice things. */
+#define AT_SYSINFO 32
+#define AT_SYSINFO_EHDR 33
+
+/* Shapes of the caches. Bits 0-3 contains associativity; bits 4-7 contains
+ log2 of line size; mask those to get cache size. */
+#define AT_L1I_CACHESHAPE 34
+#define AT_L1D_CACHESHAPE 35
+#define AT_L2_CACHESHAPE 36
+#define AT_L3_CACHESHAPE 37
+
+/* Note section contents. Each entry in the note section begins with
+ a header of a fixed form. */
+
+typedef struct
+{
+ Elf32_Word n_namesz; /* Length of the note's name. */
+ Elf32_Word n_descsz; /* Length of the note's descriptor. */
+ Elf32_Word n_type; /* Type of the note. */
+} Elf32_Nhdr;
+
+typedef struct
+{
+ Elf64_Word n_namesz; /* Length of the note's name. */
+ Elf64_Word n_descsz; /* Length of the note's descriptor. */
+ Elf64_Word n_type; /* Type of the note. */
+} Elf64_Nhdr;
+
+/* Known names of notes. */
+
+/* Solaris entries in the note section have this name. */
+#define ELF_NOTE_SOLARIS "SUNW Solaris"
+
+/* Note entries for GNU systems have this name. */
+#define ELF_NOTE_GNU "GNU"
+
+
+/* Defined types of notes for Solaris. */
+
+/* Value of descriptor (one word) is desired pagesize for the binary. */
+#define ELF_NOTE_PAGESIZE_HINT 1
+
+
+/* Defined note types for GNU systems. */
+
+/* ABI information. The descriptor consists of words:
+ word 0: OS descriptor
+ word 1: major version of the ABI
+ word 2: minor version of the ABI
+ word 3: subminor version of the ABI
+*/
+#define NT_GNU_ABI_TAG 1
+#define ELF_NOTE_ABI NT_GNU_ABI_TAG /* Old name. */
+
+/* Known OSes. These values can appear in word 0 of an
+ NT_GNU_ABI_TAG note section entry. */
+#define ELF_NOTE_OS_LINUX 0
+#define ELF_NOTE_OS_GNU 1
+#define ELF_NOTE_OS_SOLARIS2 2
+#define ELF_NOTE_OS_FREEBSD 3
+
+/* Synthetic hwcap information. The descriptor begins with two words:
+ word 0: number of entries
+ word 1: bitmask of enabled entries
+ Then follow variable-length entries, one byte followed by a
+ '\0'-terminated hwcap name string. The byte gives the bit
+ number to test if enabled, (1U << bit) & bitmask. */
+#define NT_GNU_HWCAP 2
+
+/* Build ID bits as generated by ld --build-id.
+ The descriptor consists of any nonzero number of bytes. */
+#define NT_GNU_BUILD_ID 3
+
+/* Version note generated by GNU gold containing a version string. */
+#define NT_GNU_GOLD_VERSION 4
+
+
+/* Move records. */
+typedef struct
+{
+ Elf32_Xword m_value; /* Symbol value. */
+ Elf32_Word m_info; /* Size and index. */
+ Elf32_Word m_poffset; /* Symbol offset. */
+ Elf32_Half m_repeat; /* Repeat count. */
+ Elf32_Half m_stride; /* Stride info. */
+} Elf32_Move;
+
+typedef struct
+{
+ Elf64_Xword m_value; /* Symbol value. */
+ Elf64_Xword m_info; /* Size and index. */
+ Elf64_Xword m_poffset; /* Symbol offset. */
+ Elf64_Half m_repeat; /* Repeat count. */
+ Elf64_Half m_stride; /* Stride info. */
+} Elf64_Move;
+
+/* Macro to construct move records. */
+#define ELF32_M_SYM(info) ((info) >> 8)
+#define ELF32_M_SIZE(info) ((unsigned char) (info))
+#define ELF32_M_INFO(sym, size) (((sym) << 8) + (unsigned char) (size))
+
+#define ELF64_M_SYM(info) ELF32_M_SYM (info)
+#define ELF64_M_SIZE(info) ELF32_M_SIZE (info)
+#define ELF64_M_INFO(sym, size) ELF32_M_INFO (sym, size)
+
+
+/* Motorola 68k specific definitions. */
+
+/* Values for Elf32_Ehdr.e_flags. */
+#define EF_CPU32 0x00810000
+
+/* m68k relocs. */
+
+#define R_68K_NONE 0 /* No reloc */
+#define R_68K_32 1 /* Direct 32 bit */
+#define R_68K_16 2 /* Direct 16 bit */
+#define R_68K_8 3 /* Direct 8 bit */
+#define R_68K_PC32 4 /* PC relative 32 bit */
+#define R_68K_PC16 5 /* PC relative 16 bit */
+#define R_68K_PC8 6 /* PC relative 8 bit */
+#define R_68K_GOT32 7 /* 32 bit PC relative GOT entry */
+#define R_68K_GOT16 8 /* 16 bit PC relative GOT entry */
+#define R_68K_GOT8 9 /* 8 bit PC relative GOT entry */
+#define R_68K_GOT32O 10 /* 32 bit GOT offset */
+#define R_68K_GOT16O 11 /* 16 bit GOT offset */
+#define R_68K_GOT8O 12 /* 8 bit GOT offset */
+#define R_68K_PLT32 13 /* 32 bit PC relative PLT address */
+#define R_68K_PLT16 14 /* 16 bit PC relative PLT address */
+#define R_68K_PLT8 15 /* 8 bit PC relative PLT address */
+#define R_68K_PLT32O 16 /* 32 bit PLT offset */
+#define R_68K_PLT16O 17 /* 16 bit PLT offset */
+#define R_68K_PLT8O 18 /* 8 bit PLT offset */
+#define R_68K_COPY 19 /* Copy symbol at runtime */
+#define R_68K_GLOB_DAT 20 /* Create GOT entry */
+#define R_68K_JMP_SLOT 21 /* Create PLT entry */
+#define R_68K_RELATIVE 22 /* Adjust by program base */
+#define R_68K_TLS_GD32 25 /* 32 bit GOT offset for GD */
+#define R_68K_TLS_GD16 26 /* 16 bit GOT offset for GD */
+#define R_68K_TLS_GD8 27 /* 8 bit GOT offset for GD */
+#define R_68K_TLS_LDM32 28 /* 32 bit GOT offset for LDM */
+#define R_68K_TLS_LDM16 29 /* 16 bit GOT offset for LDM */
+#define R_68K_TLS_LDM8 30 /* 8 bit GOT offset for LDM */
+#define R_68K_TLS_LDO32 31 /* 32 bit module-relative offset */
+#define R_68K_TLS_LDO16 32 /* 16 bit module-relative offset */
+#define R_68K_TLS_LDO8 33 /* 8 bit module-relative offset */
+#define R_68K_TLS_IE32 34 /* 32 bit GOT offset for IE */
+#define R_68K_TLS_IE16 35 /* 16 bit GOT offset for IE */
+#define R_68K_TLS_IE8 36 /* 8 bit GOT offset for IE */
+#define R_68K_TLS_LE32 37 /* 32 bit offset relative to
+ static TLS block */
+#define R_68K_TLS_LE16 38 /* 16 bit offset relative to
+ static TLS block */
+#define R_68K_TLS_LE8 39 /* 8 bit offset relative to
+ static TLS block */
+#define R_68K_TLS_DTPMOD32 40 /* 32 bit module number */
+#define R_68K_TLS_DTPREL32 41 /* 32 bit module-relative offset */
+#define R_68K_TLS_TPREL32 42 /* 32 bit TP-relative offset */
+/* Keep this the last entry. */
+#define R_68K_NUM 43
+
+/* Intel 80386 specific definitions. */
+
+/* i386 relocs. */
+
+#define R_386_NONE 0 /* No reloc */
+#define R_386_32 1 /* Direct 32 bit */
+#define R_386_PC32 2 /* PC relative 32 bit */
+#define R_386_GOT32 3 /* 32 bit GOT entry */
+#define R_386_PLT32 4 /* 32 bit PLT address */
+#define R_386_COPY 5 /* Copy symbol at runtime */
+#define R_386_GLOB_DAT 6 /* Create GOT entry */
+#define R_386_JMP_SLOT 7 /* Create PLT entry */
+#define R_386_RELATIVE 8 /* Adjust by program base */
+#define R_386_GOTOFF 9 /* 32 bit offset to GOT */
+#define R_386_GOTPC 10 /* 32 bit PC relative offset to GOT */
+#define R_386_32PLT 11
+#define R_386_TLS_TPOFF 14 /* Offset in static TLS block */
+#define R_386_TLS_IE 15 /* Address of GOT entry for static TLS
+ block offset */
+#define R_386_TLS_GOTIE 16 /* GOT entry for static TLS
block
+ offset */
+#define R_386_TLS_LE 17 /* Offset relative to static TLS
+ block */
+#define R_386_TLS_GD 18 /* Direct 32 bit for GNU version of
+ general dynamic thread local data */
+#define R_386_TLS_LDM 19 /* Direct 32 bit for GNU version of
+ local dynamic thread local data
+ in LE code */
+#define R_386_16 20
+#define R_386_PC16 21
+#define R_386_8 22
+#define R_386_PC8 23
+#define R_386_TLS_GD_32 24 /* Direct 32 bit for general
dynamic
+ thread local data */
+#define R_386_TLS_GD_PUSH 25 /* Tag for pushl in GD TLS code */
+#define R_386_TLS_GD_CALL 26 /* Relocation for call to
+ __tls_get_addr() */
+#define R_386_TLS_GD_POP 27 /* Tag for popl in GD TLS code */
+#define R_386_TLS_LDM_32 28 /* Direct 32 bit for local dynamic
+ thread local data in LE code */
+#define R_386_TLS_LDM_PUSH 29 /* Tag for pushl in LDM TLS code */
+#define R_386_TLS_LDM_CALL 30 /* Relocation for call to
+ __tls_get_addr() in LDM code */
+#define R_386_TLS_LDM_POP 31 /* Tag for popl in LDM TLS code */
+#define R_386_TLS_LDO_32 32 /* Offset relative to TLS block */
+#define R_386_TLS_IE_32 33 /* GOT entry for negated static
TLS
+ block offset */
+#define R_386_TLS_LE_32 34 /* Negated offset relative to
static
+ TLS block */
+#define R_386_TLS_DTPMOD32 35 /* ID of module containing symbol */
+#define R_386_TLS_DTPOFF32 36 /* Offset in TLS block */
+#define R_386_TLS_TPOFF32 37 /* Negated offset in static TLS block */
+/* 38? */
+#define R_386_TLS_GOTDESC 39 /* GOT offset for TLS descriptor. */
+#define R_386_TLS_DESC_CALL 40 /* Marker of call through TLS
+ descriptor for
+ relaxation. */
+#define R_386_TLS_DESC 41 /* TLS descriptor containing
+ pointer to code and to
+ argument, returning the TLS
+ offset for the symbol. */
+#define R_386_IRELATIVE 42 /* Adjust indirectly by program
base */
+/* Keep this the last entry. */
+#define R_386_NUM 43
+
+/* SUN SPARC specific definitions. */
+
+/* Legal values for ST_TYPE subfield of st_info (symbol type). */
+
+#define STT_SPARC_REGISTER 13 /* Global register reserved to app. */
+
+/* Values for Elf64_Ehdr.e_flags. */
+
+#define EF_SPARCV9_MM 3
+#define EF_SPARCV9_TSO 0
+#define EF_SPARCV9_PSO 1
+#define EF_SPARCV9_RMO 2
+#define EF_SPARC_LEDATA 0x800000 /* little endian data */
+#define EF_SPARC_EXT_MASK 0xFFFF00
+#define EF_SPARC_32PLUS 0x000100 /* generic V8+ features */
+#define EF_SPARC_SUN_US1 0x000200 /* Sun UltraSPARC1 extensions */
+#define EF_SPARC_HAL_R1 0x000400 /* HAL R1 extensions */
+#define EF_SPARC_SUN_US3 0x000800 /* Sun UltraSPARCIII extensions */
+
+/* SPARC relocs. */
+
+#define R_SPARC_NONE 0 /* No reloc */
+#define R_SPARC_8 1 /* Direct 8 bit */
+#define R_SPARC_16 2 /* Direct 16 bit */
+#define R_SPARC_32 3 /* Direct 32 bit */
+#define R_SPARC_DISP8 4 /* PC relative 8 bit */
+#define R_SPARC_DISP16 5 /* PC relative 16 bit */
+#define R_SPARC_DISP32 6 /* PC relative 32 bit */
+#define R_SPARC_WDISP30 7 /* PC relative 30 bit shifted */
+#define R_SPARC_WDISP22 8 /* PC relative 22 bit shifted */
+#define R_SPARC_HI22 9 /* High 22 bit */
+#define R_SPARC_22 10 /* Direct 22 bit */
+#define R_SPARC_13 11 /* Direct 13 bit */
+#define R_SPARC_LO10 12 /* Truncated 10 bit */
+#define R_SPARC_GOT10 13 /* Truncated 10 bit GOT entry */
+#define R_SPARC_GOT13 14 /* 13 bit GOT entry */
+#define R_SPARC_GOT22 15 /* 22 bit GOT entry shifted */
+#define R_SPARC_PC10 16 /* PC relative 10 bit truncated */
+#define R_SPARC_PC22 17 /* PC relative 22 bit shifted */
+#define R_SPARC_WPLT30 18 /* 30 bit PC relative PLT address */
+#define R_SPARC_COPY 19 /* Copy symbol at runtime */
+#define R_SPARC_GLOB_DAT 20 /* Create GOT entry */
+#define R_SPARC_JMP_SLOT 21 /* Create PLT entry */
+#define R_SPARC_RELATIVE 22 /* Adjust by program base */
+#define R_SPARC_UA32 23 /* Direct 32 bit unaligned */
+
+/* Additional Sparc64 relocs. */
+
+#define R_SPARC_PLT32 24 /* Direct 32 bit ref to PLT entry */
+#define R_SPARC_HIPLT22 25 /* High 22 bit PLT entry */
+#define R_SPARC_LOPLT10 26 /* Truncated 10 bit PLT entry */
+#define R_SPARC_PCPLT32 27 /* PC rel 32 bit ref to PLT
entry */
+#define R_SPARC_PCPLT22 28 /* PC rel high 22 bit PLT entry
*/
+#define R_SPARC_PCPLT10 29 /* PC rel trunc 10 bit PLT
entry */
+#define R_SPARC_10 30 /* Direct 10 bit */
+#define R_SPARC_11 31 /* Direct 11 bit */
+#define R_SPARC_64 32 /* Direct 64 bit */
+#define R_SPARC_OLO10 33 /* 10bit with secondary 13bit addend */
+#define R_SPARC_HH22 34 /* Top 22 bits of direct 64 bit */
+#define R_SPARC_HM10 35 /* High middle 10 bits of ... */
+#define R_SPARC_LM22 36 /* Low middle 22 bits of ... */
+#define R_SPARC_PC_HH22 37 /* Top 22 bits of pc rel 64 bit
*/
+#define R_SPARC_PC_HM10 38 /* High middle 10 bit of ... */
+#define R_SPARC_PC_LM22 39 /* Low miggle 22 bits of ... */
+#define R_SPARC_WDISP16 40 /* PC relative 16 bit shifted */
+#define R_SPARC_WDISP19 41 /* PC relative 19 bit shifted */
+#define R_SPARC_GLOB_JMP 42 /* was part of v9 ABI but was removed */
+#define R_SPARC_7 43 /* Direct 7 bit */
+#define R_SPARC_5 44 /* Direct 5 bit */
+#define R_SPARC_6 45 /* Direct 6 bit */
+#define R_SPARC_DISP64 46 /* PC relative 64 bit */
+#define R_SPARC_PLT64 47 /* Direct 64 bit ref to PLT entry */
+#define R_SPARC_HIX22 48 /* High 22 bit complemented */
+#define R_SPARC_LOX10 49 /* Truncated 11 bit complemented */
+#define R_SPARC_H44 50 /* Direct high 12 of 44 bit */
+#define R_SPARC_M44 51 /* Direct mid 22 of 44 bit */
+#define R_SPARC_L44 52 /* Direct low 10 of 44 bit */
+#define R_SPARC_REGISTER 53 /* Global register usage */
+#define R_SPARC_UA64 54 /* Direct 64 bit unaligned */
+#define R_SPARC_UA16 55 /* Direct 16 bit unaligned */
+#define R_SPARC_TLS_GD_HI22 56
+#define R_SPARC_TLS_GD_LO10 57
+#define R_SPARC_TLS_GD_ADD 58
+#define R_SPARC_TLS_GD_CALL 59
+#define R_SPARC_TLS_LDM_HI22 60
+#define R_SPARC_TLS_LDM_LO10 61
+#define R_SPARC_TLS_LDM_ADD 62
+#define R_SPARC_TLS_LDM_CALL 63
+#define R_SPARC_TLS_LDO_HIX22 64
+#define R_SPARC_TLS_LDO_LOX10 65
+#define R_SPARC_TLS_LDO_ADD 66
+#define R_SPARC_TLS_IE_HI22 67
+#define R_SPARC_TLS_IE_LO10 68
+#define R_SPARC_TLS_IE_LD 69
+#define R_SPARC_TLS_IE_LDX 70
+#define R_SPARC_TLS_IE_ADD 71
+#define R_SPARC_TLS_LE_HIX22 72
+#define R_SPARC_TLS_LE_LOX10 73
+#define R_SPARC_TLS_DTPMOD32 74
+#define R_SPARC_TLS_DTPMOD64 75
+#define R_SPARC_TLS_DTPOFF32 76
+#define R_SPARC_TLS_DTPOFF64 77
+#define R_SPARC_TLS_TPOFF32 78
+#define R_SPARC_TLS_TPOFF64 79
+#define R_SPARC_GOTDATA_HIX22 80
+#define R_SPARC_GOTDATA_LOX10 81
+#define R_SPARC_GOTDATA_OP_HIX22 82
+#define R_SPARC_GOTDATA_OP_LOX10 83
+#define R_SPARC_GOTDATA_OP 84
+#define R_SPARC_H34 85
+#define R_SPARC_SIZE32 86
+#define R_SPARC_SIZE64 87
+#define R_SPARC_JMP_IREL 248
+#define R_SPARC_IRELATIVE 249
+#define R_SPARC_GNU_VTINHERIT 250
+#define R_SPARC_GNU_VTENTRY 251
+#define R_SPARC_REV32 252
+/* Keep this the last entry. */
+#define R_SPARC_NUM 253
+
+/* For Sparc64, legal values for d_tag of Elf64_Dyn. */
+
+#define DT_SPARC_REGISTER 0x70000001
+#define DT_SPARC_NUM 2
+
+/* Bits present in AT_HWCAP on SPARC. */
+
+#define HWCAP_SPARC_FLUSH 1 /* The CPU supports flush insn. */
+#define HWCAP_SPARC_STBAR 2
+#define HWCAP_SPARC_SWAP 4
+#define HWCAP_SPARC_MULDIV 8
+#define HWCAP_SPARC_V9 16 /* The CPU is v9, so v8plus is ok. */
+#define HWCAP_SPARC_ULTRA3 32
+#define HWCAP_SPARC_BLKINIT 64 /* Sun4v with block-init/load-twin. */
+#define HWCAP_SPARC_N2 128
+
+/* MIPS R3000 specific definitions. */
+
+/* Legal values for e_flags field of Elf32_Ehdr. */
+
+#define EF_MIPS_NOREORDER 1 /* A .noreorder directive was used */
+#define EF_MIPS_PIC 2 /* Contains PIC code */
+#define EF_MIPS_CPIC 4 /* Uses PIC calling sequence */
+#define EF_MIPS_XGOT 8
+#define EF_MIPS_64BIT_WHIRL 16
+#define EF_MIPS_ABI2 32
+#define EF_MIPS_ABI_ON32 64
+#define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level */
+
+/* Legal values for MIPS architecture level. */
+
+#define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code. */
+#define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code. */
+#define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code. */
+#define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code. */
+#define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code. */
+#define EF_MIPS_ARCH_32 0x60000000 /* MIPS32 code. */
+#define EF_MIPS_ARCH_64 0x70000000 /* MIPS64 code. */
+
+/* The following are non-official names and should not be used. */
+
+#define E_MIPS_ARCH_1 0x00000000 /* -mips1 code. */
+#define E_MIPS_ARCH_2 0x10000000 /* -mips2 code. */
+#define E_MIPS_ARCH_3 0x20000000 /* -mips3 code. */
+#define E_MIPS_ARCH_4 0x30000000 /* -mips4 code. */
+#define E_MIPS_ARCH_5 0x40000000 /* -mips5 code. */
+#define E_MIPS_ARCH_32 0x60000000 /* MIPS32 code. */
+#define E_MIPS_ARCH_64 0x70000000 /* MIPS64 code. */
+
+/* Special section indices. */
+
+#define SHN_MIPS_ACOMMON 0xff00 /* Allocated common symbols */
+#define SHN_MIPS_TEXT 0xff01 /* Allocated test symbols. */
+#define SHN_MIPS_DATA 0xff02 /* Allocated data symbols. */
+#define SHN_MIPS_SCOMMON 0xff03 /* Small common symbols */
+#define SHN_MIPS_SUNDEFINED 0xff04 /* Small undefined symbols */
+
+/* Legal values for sh_type field of Elf32_Shdr. */
+
+#define SHT_MIPS_LIBLIST 0x70000000 /* Shared objects used in link */
+#define SHT_MIPS_MSYM 0x70000001
+#define SHT_MIPS_CONFLICT 0x70000002 /* Conflicting symbols */
+#define SHT_MIPS_GPTAB 0x70000003 /* Global data area sizes */
+#define SHT_MIPS_UCODE 0x70000004 /* Reserved for SGI/MIPS compilers */
+#define SHT_MIPS_DEBUG 0x70000005 /* MIPS ECOFF debugging information*/
+#define SHT_MIPS_REGINFO 0x70000006 /* Register usage information */
+#define SHT_MIPS_PACKAGE 0x70000007
+#define SHT_MIPS_PACKSYM 0x70000008
+#define SHT_MIPS_RELD 0x70000009
+#define SHT_MIPS_IFACE 0x7000000b
+#define SHT_MIPS_CONTENT 0x7000000c
+#define SHT_MIPS_OPTIONS 0x7000000d /* Miscellaneous options. */
+#define SHT_MIPS_SHDR 0x70000010
+#define SHT_MIPS_FDESC 0x70000011
+#define SHT_MIPS_EXTSYM 0x70000012
+#define SHT_MIPS_DENSE 0x70000013
+#define SHT_MIPS_PDESC 0x70000014
+#define SHT_MIPS_LOCSYM 0x70000015
+#define SHT_MIPS_AUXSYM 0x70000016
+#define SHT_MIPS_OPTSYM 0x70000017
+#define SHT_MIPS_LOCSTR 0x70000018
+#define SHT_MIPS_LINE 0x70000019
+#define SHT_MIPS_RFDESC 0x7000001a
+#define SHT_MIPS_DELTASYM 0x7000001b
+#define SHT_MIPS_DELTAINST 0x7000001c
+#define SHT_MIPS_DELTACLASS 0x7000001d
+#define SHT_MIPS_DWARF 0x7000001e /* DWARF debugging information. */
+#define SHT_MIPS_DELTADECL 0x7000001f
+#define SHT_MIPS_SYMBOL_LIB 0x70000020
+#define SHT_MIPS_EVENTS 0x70000021 /* Event section. */
+#define SHT_MIPS_TRANSLATE 0x70000022
+#define SHT_MIPS_PIXIE 0x70000023
+#define SHT_MIPS_XLATE 0x70000024
+#define SHT_MIPS_XLATE_DEBUG 0x70000025
+#define SHT_MIPS_WHIRL 0x70000026
+#define SHT_MIPS_EH_REGION 0x70000027
+#define SHT_MIPS_XLATE_OLD 0x70000028
+#define SHT_MIPS_PDR_EXCEPTION 0x70000029
+
+/* Legal values for sh_flags field of Elf32_Shdr. */
+
+#define SHF_MIPS_GPREL 0x10000000 /* Must be part of global data area */
+#define SHF_MIPS_MERGE 0x20000000
+#define SHF_MIPS_ADDR 0x40000000
+#define SHF_MIPS_STRINGS 0x80000000
+#define SHF_MIPS_NOSTRIP 0x08000000
+#define SHF_MIPS_LOCAL 0x04000000
+#define SHF_MIPS_NAMES 0x02000000
+#define SHF_MIPS_NODUPE 0x01000000
+
+
+/* Symbol tables. */
+
+/* MIPS specific values for `st_other'. */
+#define STO_MIPS_DEFAULT 0x0
+#define STO_MIPS_INTERNAL 0x1
+#define STO_MIPS_HIDDEN 0x2
+#define STO_MIPS_PROTECTED 0x3
+#define STO_MIPS_PLT 0x8
+#define STO_MIPS_SC_ALIGN_UNUSED 0xff
+
+/* MIPS specific values for `st_info'. */
+#define STB_MIPS_SPLIT_COMMON 13
+
+/* Entries found in sections of type SHT_MIPS_GPTAB. */
+
+typedef union
+{
+ struct
+ {
+ Elf32_Word gt_current_g_value; /* -G value used for compilation */
+ Elf32_Word gt_unused; /* Not used */
+ } gt_header; /* First entry in section */
+ struct
+ {
+ Elf32_Word gt_g_value; /* If this value were used for -G */
+ Elf32_Word gt_bytes; /* This many bytes would be used */
+ } gt_entry; /* Subsequent entries in
section */
+} Elf32_gptab;
+
+/* Entry found in sections of type SHT_MIPS_REGINFO. */
+
+typedef struct
+{
+ Elf32_Word ri_gprmask; /* General registers used */
+ Elf32_Word ri_cprmask[4]; /* Coprocessor registers used */
+ Elf32_Sword ri_gp_value; /* $gp register value */
+} Elf32_RegInfo;
+
+/* Entries found in sections of type SHT_MIPS_OPTIONS. */
+
+typedef struct
+{
+ unsigned char kind; /* Determines interpretation of the
+ variable part of descriptor. */
+ unsigned char size; /* Size of descriptor, including header. */
+ Elf32_Section section; /* Section header index of section affected,
+ 0 for global options. */
+ Elf32_Word info; /* Kind-specific information. */
+} Elf_Options;
+
+/* Values for `kind' field in Elf_Options. */
+
+#define ODK_NULL 0 /* Undefined. */
+#define ODK_REGINFO 1 /* Register usage information. */
+#define ODK_EXCEPTIONS 2 /* Exception processing options. */
+#define ODK_PAD 3 /* Section padding options. */
+#define ODK_HWPATCH 4 /* Hardware workarounds performed */
+#define ODK_FILL 5 /* record the fill value used by the linker. */
+#define ODK_TAGS 6 /* reserve space for desktop tools to write. */
+#define ODK_HWAND 7 /* HW workarounds. 'AND' bits when merging. */
+#define ODK_HWOR 8 /* HW workarounds. 'OR' bits when merging. */
+
+/* Values for `info' in Elf_Options for ODK_EXCEPTIONS entries. */
+
+#define OEX_FPU_MIN 0x1f /* FPE's which MUST be enabled. */
+#define OEX_FPU_MAX 0x1f00 /* FPE's which MAY be enabled. */
+#define OEX_PAGE0 0x10000 /* page zero must be mapped. */
+#define OEX_SMM 0x20000 /* Force sequential memory mode? */
+#define OEX_FPDBUG 0x40000 /* Force floating point debug mode? */
+#define OEX_PRECISEFP OEX_FPDBUG
+#define OEX_DISMISS 0x80000 /* Dismiss invalid address faults? */
+
+#define OEX_FPU_INVAL 0x10
+#define OEX_FPU_DIV0 0x08
+#define OEX_FPU_OFLO 0x04
+#define OEX_FPU_UFLO 0x02
+#define OEX_FPU_INEX 0x01
+
+/* Masks for `info' in Elf_Options for an ODK_HWPATCH entry. */
+
+#define OHW_R4KEOP 0x1 /* R4000 end-of-page patch. */
+#define OHW_R8KPFETCH 0x2 /* may need R8000 prefetch patch. */
+#define OHW_R5KEOP 0x4 /* R5000 end-of-page patch. */
+#define OHW_R5KCVTL 0x8 /* R5000 cvt.[ds].l bug. clean=1. */
+
+#define OPAD_PREFIX 0x1
+#define OPAD_POSTFIX 0x2
+#define OPAD_SYMBOL 0x4
+
+/* Entry found in `.options' section. */
+
+typedef struct
+{
+ Elf32_Word hwp_flags1; /* Extra flags. */
+ Elf32_Word hwp_flags2; /* Extra flags. */
+} Elf_Options_Hw;
+
+/* Masks for `info' in ElfOptions for ODK_HWAND and ODK_HWOR entries. */
+
+#define OHWA0_R4KEOP_CHECKED 0x00000001
+#define OHWA1_R4KEOP_CLEAN 0x00000002
+
+/* MIPS relocs. */
+
+#define R_MIPS_NONE 0 /* No reloc */
+#define R_MIPS_16 1 /* Direct 16 bit */
+#define R_MIPS_32 2 /* Direct 32 bit */
+#define R_MIPS_REL32 3 /* PC relative 32 bit */
+#define R_MIPS_26 4 /* Direct 26 bit shifted */
+#define R_MIPS_HI16 5 /* High 16 bit */
+#define R_MIPS_LO16 6 /* Low 16 bit */
+#define R_MIPS_GPREL16 7 /* GP relative 16 bit */
+#define R_MIPS_LITERAL 8 /* 16 bit literal entry */
+#define R_MIPS_GOT16 9 /* 16 bit GOT entry */
+#define R_MIPS_PC16 10 /* PC relative 16 bit */
+#define R_MIPS_CALL16 11 /* 16 bit GOT entry for function */
+#define R_MIPS_GPREL32 12 /* GP relative 32 bit */
+
+#define R_MIPS_SHIFT5 16
+#define R_MIPS_SHIFT6 17
+#define R_MIPS_64 18
+#define R_MIPS_GOT_DISP 19
+#define R_MIPS_GOT_PAGE 20
+#define R_MIPS_GOT_OFST 21
+#define R_MIPS_GOT_HI16 22
+#define R_MIPS_GOT_LO16 23
+#define R_MIPS_SUB 24
+#define R_MIPS_INSERT_A 25
+#define R_MIPS_INSERT_B 26
+#define R_MIPS_DELETE 27
+#define R_MIPS_HIGHER 28
+#define R_MIPS_HIGHEST 29
+#define R_MIPS_CALL_HI16 30
+#define R_MIPS_CALL_LO16 31
+#define R_MIPS_SCN_DISP 32
+#define R_MIPS_REL16 33
+#define R_MIPS_ADD_IMMEDIATE 34
+#define R_MIPS_PJUMP 35
+#define R_MIPS_RELGOT 36
+#define R_MIPS_JALR 37
+#define R_MIPS_TLS_DTPMOD32 38 /* Module number 32 bit */
+#define R_MIPS_TLS_DTPREL32 39 /* Module-relative offset 32 bit */
+#define R_MIPS_TLS_DTPMOD64 40 /* Module number 64 bit */
+#define R_MIPS_TLS_DTPREL64 41 /* Module-relative offset 64 bit */
+#define R_MIPS_TLS_GD 42 /* 16 bit GOT offset for GD */
+#define R_MIPS_TLS_LDM 43 /* 16 bit GOT offset for LDM */
+#define R_MIPS_TLS_DTPREL_HI16 44 /* Module-relative offset, high 16 bits
*/
+#define R_MIPS_TLS_DTPREL_LO16 45 /* Module-relative offset, low 16 bits
*/
+#define R_MIPS_TLS_GOTTPREL 46 /* 16 bit GOT offset for IE */
+#define R_MIPS_TLS_TPREL32 47 /* TP-relative offset, 32 bit */
+#define R_MIPS_TLS_TPREL64 48 /* TP-relative offset, 64 bit */
+#define R_MIPS_TLS_TPREL_HI16 49 /* TP-relative offset, high 16 bits */
+#define R_MIPS_TLS_TPREL_LO16 50 /* TP-relative offset, low 16 bits */
+#define R_MIPS_GLOB_DAT 51
+#define R_MIPS_COPY 126
+#define R_MIPS_JUMP_SLOT 127
+/* Keep this the last entry. */
+#define R_MIPS_NUM 128
+
+/* Legal values for p_type field of Elf32_Phdr. */
+
+#define PT_MIPS_REGINFO 0x70000000 /* Register usage information */
+#define PT_MIPS_RTPROC 0x70000001 /* Runtime procedure table. */
+#define PT_MIPS_OPTIONS 0x70000002
+
+/* Special program header types. */
+
+#define PF_MIPS_LOCAL 0x10000000
+
+/* Legal values for d_tag field of Elf32_Dyn. */
+
+#define DT_MIPS_RLD_VERSION 0x70000001 /* Runtime linker interface
version */
+#define DT_MIPS_TIME_STAMP 0x70000002 /* Timestamp */
+#define DT_MIPS_ICHECKSUM 0x70000003 /* Checksum */
+#define DT_MIPS_IVERSION 0x70000004 /* Version string (string tbl
index) */
+#define DT_MIPS_FLAGS 0x70000005 /* Flags */
+#define DT_MIPS_BASE_ADDRESS 0x70000006 /* Base address */
+#define DT_MIPS_MSYM 0x70000007
+#define DT_MIPS_CONFLICT 0x70000008 /* Address of CONFLICT section
*/
+#define DT_MIPS_LIBLIST 0x70000009 /* Address of LIBLIST section */
+#define DT_MIPS_LOCAL_GOTNO 0x7000000a /* Number of local GOT entries
*/
+#define DT_MIPS_CONFLICTNO 0x7000000b /* Number of CONFLICT entries */
+#define DT_MIPS_LIBLISTNO 0x70000010 /* Number of LIBLIST entries */
+#define DT_MIPS_SYMTABNO 0x70000011 /* Number of DYNSYM entries */
+#define DT_MIPS_UNREFEXTNO 0x70000012 /* First external DYNSYM */
+#define DT_MIPS_GOTSYM 0x70000013 /* First GOT entry in DYNSYM */
+#define DT_MIPS_HIPAGENO 0x70000014 /* Number of GOT page table
entries */
+#define DT_MIPS_RLD_MAP 0x70000016 /* Address of run time loader
map. */
+#define DT_MIPS_DELTA_CLASS 0x70000017 /* Delta C++ class definition.
*/
+#define DT_MIPS_DELTA_CLASS_NO 0x70000018 /* Number of entries in
+ DT_MIPS_DELTA_CLASS. */
+#define DT_MIPS_DELTA_INSTANCE 0x70000019 /* Delta C++ class instances. */
+#define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a /* Number of entries in
+ DT_MIPS_DELTA_INSTANCE. */
+#define DT_MIPS_DELTA_RELOC 0x7000001b /* Delta relocations. */
+#define DT_MIPS_DELTA_RELOC_NO 0x7000001c /* Number of entries in
+ DT_MIPS_DELTA_RELOC. */
+#define DT_MIPS_DELTA_SYM 0x7000001d /* Delta symbols that Delta
+ relocations refer to. */
+#define DT_MIPS_DELTA_SYM_NO 0x7000001e /* Number of entries in
+ DT_MIPS_DELTA_SYM. */
+#define DT_MIPS_DELTA_CLASSSYM 0x70000020 /* Delta symbols that hold the
+ class declaration. */
+#define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021 /* Number of entries in
+ DT_MIPS_DELTA_CLASSSYM. */
+#define DT_MIPS_CXX_FLAGS 0x70000022 /* Flags indicating for C++ flavor. */
+#define DT_MIPS_PIXIE_INIT 0x70000023
+#define DT_MIPS_SYMBOL_LIB 0x70000024
+#define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025
+#define DT_MIPS_LOCAL_GOTIDX 0x70000026
+#define DT_MIPS_HIDDEN_GOTIDX 0x70000027
+#define DT_MIPS_PROTECTED_GOTIDX 0x70000028
+#define DT_MIPS_OPTIONS 0x70000029 /* Address of .options. */
+#define DT_MIPS_INTERFACE 0x7000002a /* Address of .interface. */
+#define DT_MIPS_DYNSTR_ALIGN 0x7000002b
+#define DT_MIPS_INTERFACE_SIZE 0x7000002c /* Size of the .interface section. */
+#define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d /* Address of rld_text_rsolve
+ function stored in GOT. */
+#define DT_MIPS_PERF_SUFFIX 0x7000002e /* Default suffix of dso to be added
+ by rld on dlopen() calls. */
+#define DT_MIPS_COMPACT_SIZE 0x7000002f /* (O32)Size of compact rel section. */
+#define DT_MIPS_GP_VALUE 0x70000030 /* GP value for aux GOTs. */
+#define DT_MIPS_AUX_DYNAMIC 0x70000031 /* Address of aux .dynamic. */
+/* The address of .got.plt in an executable using the new non-PIC ABI. */
+#define DT_MIPS_PLTGOT 0x70000032
+/* The base of the PLT in an executable using the new non-PIC ABI if that
+ PLT is writable. For a non-writable PLT, this is omitted or has a zero
+ value. */
+#define DT_MIPS_RWPLT 0x70000034
+#define DT_MIPS_NUM 0x35
+
+/* Legal values for DT_MIPS_FLAGS Elf32_Dyn entry. */
+
+#define RHF_NONE 0 /* No flags */
+#define RHF_QUICKSTART (1 << 0) /* Use quickstart */
+#define RHF_NOTPOT (1 << 1) /* Hash size not power of 2 */
+#define RHF_NO_LIBRARY_REPLACEMENT (1 << 2) /* Ignore LD_LIBRARY_PATH */
+#define RHF_NO_MOVE (1 << 3)
+#define RHF_SGI_ONLY (1 << 4)
+#define RHF_GUARANTEE_INIT (1 << 5)
+#define RHF_DELTA_C_PLUS_PLUS (1 << 6)
+#define RHF_GUARANTEE_START_INIT (1 << 7)
+#define RHF_PIXIE (1 << 8)
+#define RHF_DEFAULT_DELAY_LOAD (1 << 9)
+#define RHF_REQUICKSTART (1 << 10)
+#define RHF_REQUICKSTARTED (1 << 11)
+#define RHF_CORD (1 << 12)
+#define RHF_NO_UNRES_UNDEF (1 << 13)
+#define RHF_RLD_ORDER_SAFE (1 << 14)
+
+/* Entries found in sections of type SHT_MIPS_LIBLIST. */
+
+typedef struct
+{
+ Elf32_Word l_name; /* Name (string table index) */
+ Elf32_Word l_time_stamp; /* Timestamp */
+ Elf32_Word l_checksum; /* Checksum */
+ Elf32_Word l_version; /* Interface version */
+ Elf32_Word l_flags; /* Flags */
+} Elf32_Lib;
+
+typedef struct
+{
+ Elf64_Word l_name; /* Name (string table index) */
+ Elf64_Word l_time_stamp; /* Timestamp */
+ Elf64_Word l_checksum; /* Checksum */
+ Elf64_Word l_version; /* Interface version */
+ Elf64_Word l_flags; /* Flags */
+} Elf64_Lib;
+
+
+/* Legal values for l_flags. */
+
+#define LL_NONE 0
+#define LL_EXACT_MATCH (1 << 0) /* Require exact match */
+#define LL_IGNORE_INT_VER (1 << 1) /* Ignore interface version */
+#define LL_REQUIRE_MINOR (1 << 2)
+#define LL_EXPORTS (1 << 3)
+#define LL_DELAY_LOAD (1 << 4)
+#define LL_DELTA (1 << 5)
+
+/* Entries found in sections of type SHT_MIPS_CONFLICT. */
+
+typedef Elf32_Addr Elf32_Conflict;
+
+
+/* HPPA specific definitions. */
+
+/* Legal values for e_flags field of Elf32_Ehdr. */
+
+#define EF_PARISC_TRAPNIL 0x00010000 /* Trap nil pointer dereference. */
+#define EF_PARISC_EXT 0x00020000 /* Program uses arch. extensions. */
+#define EF_PARISC_LSB 0x00040000 /* Program expects little endian. */
+#define EF_PARISC_WIDE 0x00080000 /* Program expects wide mode. */
+#define EF_PARISC_NO_KABP 0x00100000 /* No kernel assisted branch
+ prediction. */
+#define EF_PARISC_LAZYSWAP 0x00400000 /* Allow lazy swapping. */
+#define EF_PARISC_ARCH 0x0000ffff /* Architecture version. */
+
+/* Defined values for `e_flags & EF_PARISC_ARCH' are: */
+
+#define EFA_PARISC_1_0 0x020b /* PA-RISC 1.0 big-endian. */
+#define EFA_PARISC_1_1 0x0210 /* PA-RISC 1.1 big-endian. */
+#define EFA_PARISC_2_0 0x0214 /* PA-RISC 2.0 big-endian. */
+
+/* Additional section indeces. */
+
+#define SHN_PARISC_ANSI_COMMON 0xff00 /* Section for tenatively declared
+ symbols in ANSI C. */
+#define SHN_PARISC_HUGE_COMMON 0xff01 /* Common blocks in huge model. */
+
+/* Legal values for sh_type field of Elf32_Shdr. */
+
+#define SHT_PARISC_EXT 0x70000000 /* Contains product specific ext. */
+#define SHT_PARISC_UNWIND 0x70000001 /* Unwind information. */
+#define SHT_PARISC_DOC 0x70000002 /* Debug info for optimized code. */
+
+/* Legal values for sh_flags field of Elf32_Shdr. */
+
+#define SHF_PARISC_SHORT 0x20000000 /* Section with short addressing. */
+#define SHF_PARISC_HUGE 0x40000000 /* Section far from gp. */
+#define SHF_PARISC_SBP 0x80000000 /* Static branch prediction code. */
+
+/* Legal values for ST_TYPE subfield of st_info (symbol type). */
+
+#define STT_PARISC_MILLICODE 13 /* Millicode function entry point. */
+
+#define STT_HP_OPAQUE (STT_LOOS + 0x1)
+#define STT_HP_STUB (STT_LOOS + 0x2)
+
+/* HPPA relocs. */
+
+#define R_PARISC_NONE 0 /* No reloc. */
+#define R_PARISC_DIR32 1 /* Direct 32-bit reference. */
+#define R_PARISC_DIR21L 2 /* Left 21 bits of eff.
address. */
+#define R_PARISC_DIR17R 3 /* Right 17 bits of eff.
address. */
+#define R_PARISC_DIR17F 4 /* 17 bits of eff. address. */
+#define R_PARISC_DIR14R 6 /* Right 14 bits of eff.
address. */
+#define R_PARISC_PCREL32 9 /* 32-bit rel. address. */
+#define R_PARISC_PCREL21L 10 /* Left 21 bits of rel. address. */
+#define R_PARISC_PCREL17R 11 /* Right 17 bits of rel. address. */
+#define R_PARISC_PCREL17F 12 /* 17 bits of rel. address. */
+#define R_PARISC_PCREL14R 14 /* Right 14 bits of rel. address. */
+#define R_PARISC_DPREL21L 18 /* Left 21 bits of rel. address. */
+#define R_PARISC_DPREL14R 22 /* Right 14 bits of rel. address. */
+#define R_PARISC_GPREL21L 26 /* GP-relative, left 21 bits. */
+#define R_PARISC_GPREL14R 30 /* GP-relative, right 14 bits. */
+#define R_PARISC_LTOFF21L 34 /* LT-relative, left 21 bits. */
+#define R_PARISC_LTOFF14R 38 /* LT-relative, right 14 bits. */
+#define R_PARISC_SECREL32 41 /* 32 bits section rel. address. */
+#define R_PARISC_SEGBASE 48 /* No relocation, set segment base. */
+#define R_PARISC_SEGREL32 49 /* 32 bits segment rel. address. */
+#define R_PARISC_PLTOFF21L 50 /* PLT rel. address, left 21 bits. */
+#define R_PARISC_PLTOFF14R 54 /* PLT rel. address, right 14 bits. */
+#define R_PARISC_LTOFF_FPTR32 57 /* 32 bits LT-rel. function pointer. */
+#define R_PARISC_LTOFF_FPTR21L 58 /* LT-rel. fct ptr, left 21 bits. */
+#define R_PARISC_LTOFF_FPTR14R 62 /* LT-rel. fct ptr, right 14 bits. */
+#define R_PARISC_FPTR64 64 /* 64 bits function address. */
+#define R_PARISC_PLABEL32 65 /* 32 bits function address. */
+#define R_PARISC_PLABEL21L 66 /* Left 21 bits of fdesc address. */
+#define R_PARISC_PLABEL14R 70 /* Right 14 bits of fdesc address. */
+#define R_PARISC_PCREL64 72 /* 64 bits PC-rel. address. */
+#define R_PARISC_PCREL22F 74 /* 22 bits PC-rel. address. */
+#define R_PARISC_PCREL14WR 75 /* PC-rel. address, right 14 bits. */
+#define R_PARISC_PCREL14DR 76 /* PC rel. address, right 14 bits. */
+#define R_PARISC_PCREL16F 77 /* 16 bits PC-rel. address. */
+#define R_PARISC_PCREL16WF 78 /* 16 bits PC-rel. address. */
+#define R_PARISC_PCREL16DF 79 /* 16 bits PC-rel. address. */
+#define R_PARISC_DIR64 80 /* 64 bits of eff. address. */
+#define R_PARISC_DIR14WR 83 /* 14 bits of eff. address. */
+#define R_PARISC_DIR14DR 84 /* 14 bits of eff. address. */
+#define R_PARISC_DIR16F 85 /* 16 bits of eff. address. */
+#define R_PARISC_DIR16WF 86 /* 16 bits of eff. address. */
+#define R_PARISC_DIR16DF 87 /* 16 bits of eff. address. */
+#define R_PARISC_GPREL64 88 /* 64 bits of GP-rel. address. */
+#define R_PARISC_GPREL14WR 91 /* GP-rel. address, right 14 bits. */
+#define R_PARISC_GPREL14DR 92 /* GP-rel. address, right 14 bits. */
+#define R_PARISC_GPREL16F 93 /* 16 bits GP-rel. address. */
+#define R_PARISC_GPREL16WF 94 /* 16 bits GP-rel. address. */
+#define R_PARISC_GPREL16DF 95 /* 16 bits GP-rel. address. */
+#define R_PARISC_LTOFF64 96 /* 64 bits LT-rel. address. */
+#define R_PARISC_LTOFF14WR 99 /* LT-rel. address, right 14 bits. */
+#define R_PARISC_LTOFF14DR 100 /* LT-rel. address, right 14 bits. */
+#define R_PARISC_LTOFF16F 101 /* 16 bits LT-rel. address. */
+#define R_PARISC_LTOFF16WF 102 /* 16 bits LT-rel. address. */
+#define R_PARISC_LTOFF16DF 103 /* 16 bits LT-rel. address. */
+#define R_PARISC_SECREL64 104 /* 64 bits section rel. address. */
+#define R_PARISC_SEGREL64 112 /* 64 bits segment rel. address. */
+#define R_PARISC_PLTOFF14WR 115 /* PLT-rel. address, right 14 bits. */
+#define R_PARISC_PLTOFF14DR 116 /* PLT-rel. address, right 14 bits. */
+#define R_PARISC_PLTOFF16F 117 /* 16 bits LT-rel. address. */
+#define R_PARISC_PLTOFF16WF 118 /* 16 bits PLT-rel. address. */
+#define R_PARISC_PLTOFF16DF 119 /* 16 bits PLT-rel. address. */
+#define R_PARISC_LTOFF_FPTR64 120 /* 64 bits LT-rel. function ptr. */
+#define R_PARISC_LTOFF_FPTR14WR 123 /* LT-rel. fct. ptr., right 14
bits. */
+#define R_PARISC_LTOFF_FPTR14DR 124 /* LT-rel. fct. ptr., right 14
bits. */
+#define R_PARISC_LTOFF_FPTR16F 125 /* 16 bits LT-rel. function ptr. */
+#define R_PARISC_LTOFF_FPTR16WF 126 /* 16 bits LT-rel. function
ptr. */
+#define R_PARISC_LTOFF_FPTR16DF 127 /* 16 bits LT-rel. function
ptr. */
+#define R_PARISC_LORESERVE 128
+#define R_PARISC_COPY 128 /* Copy relocation. */
+#define R_PARISC_IPLT 129 /* Dynamic reloc, imported PLT */
+#define R_PARISC_EPLT 130 /* Dynamic reloc, exported PLT */
+#define R_PARISC_TPREL32 153 /* 32 bits TP-rel. address. */
+#define R_PARISC_TPREL21L 154 /* TP-rel. address, left 21 bits. */
+#define R_PARISC_TPREL14R 158 /* TP-rel. address, right 14 bits. */
+#define R_PARISC_LTOFF_TP21L 162 /* LT-TP-rel. address, left 21 bits. */
+#define R_PARISC_LTOFF_TP14R 166 /* LT-TP-rel. address, right 14 bits.*/
+#define R_PARISC_LTOFF_TP14F 167 /* 14 bits LT-TP-rel. address. */
+#define R_PARISC_TPREL64 216 /* 64 bits TP-rel. address. */
+#define R_PARISC_TPREL14WR 219 /* TP-rel. address, right 14 bits. */
+#define R_PARISC_TPREL14DR 220 /* TP-rel. address, right 14 bits. */
+#define R_PARISC_TPREL16F 221 /* 16 bits TP-rel. address. */
+#define R_PARISC_TPREL16WF 222 /* 16 bits TP-rel. address. */
+#define R_PARISC_TPREL16DF 223 /* 16 bits TP-rel. address. */
+#define R_PARISC_LTOFF_TP64 224 /* 64 bits LT-TP-rel. address. */
+#define R_PARISC_LTOFF_TP14WR 227 /* LT-TP-rel. address, right 14 bits.*/
+#define R_PARISC_LTOFF_TP14DR 228 /* LT-TP-rel. address, right 14 bits.*/
+#define R_PARISC_LTOFF_TP16F 229 /* 16 bits LT-TP-rel. address. */
+#define R_PARISC_LTOFF_TP16WF 230 /* 16 bits LT-TP-rel. address. */
+#define R_PARISC_LTOFF_TP16DF 231 /* 16 bits LT-TP-rel. address. */
+#define R_PARISC_GNU_VTENTRY 232
+#define R_PARISC_GNU_VTINHERIT 233
+#define R_PARISC_TLS_GD21L 234 /* GD 21-bit left. */
+#define R_PARISC_TLS_GD14R 235 /* GD 14-bit right. */
+#define R_PARISC_TLS_GDCALL 236 /* GD call to __t_g_a. */
+#define R_PARISC_TLS_LDM21L 237 /* LD module 21-bit left. */
+#define R_PARISC_TLS_LDM14R 238 /* LD module 14-bit right. */
+#define R_PARISC_TLS_LDMCALL 239 /* LD module call to __t_g_a. */
+#define R_PARISC_TLS_LDO21L 240 /* LD offset 21-bit left. */
+#define R_PARISC_TLS_LDO14R 241 /* LD offset 14-bit right. */
+#define R_PARISC_TLS_DTPMOD32 242 /* DTP module 32-bit. */
+#define R_PARISC_TLS_DTPMOD64 243 /* DTP module 64-bit. */
+#define R_PARISC_TLS_DTPOFF32 244 /* DTP offset 32-bit. */
+#define R_PARISC_TLS_DTPOFF64 245 /* DTP offset 32-bit. */
+#define R_PARISC_TLS_LE21L R_PARISC_TPREL21L
+#define R_PARISC_TLS_LE14R R_PARISC_TPREL14R
+#define R_PARISC_TLS_IE21L R_PARISC_LTOFF_TP21L
+#define R_PARISC_TLS_IE14R R_PARISC_LTOFF_TP14R
+#define R_PARISC_TLS_TPREL32 R_PARISC_TPREL32
+#define R_PARISC_TLS_TPREL64 R_PARISC_TPREL64
+#define R_PARISC_HIRESERVE 255
+
+/* Legal values for p_type field of Elf32_Phdr/Elf64_Phdr. */
+
+#define PT_HP_TLS (PT_LOOS + 0x0)
+#define PT_HP_CORE_NONE (PT_LOOS + 0x1)
+#define PT_HP_CORE_VERSION (PT_LOOS + 0x2)
+#define PT_HP_CORE_KERNEL (PT_LOOS + 0x3)
+#define PT_HP_CORE_COMM (PT_LOOS + 0x4)
+#define PT_HP_CORE_PROC (PT_LOOS + 0x5)
+#define PT_HP_CORE_LOADABLE (PT_LOOS + 0x6)
+#define PT_HP_CORE_STACK (PT_LOOS + 0x7)
+#define PT_HP_CORE_SHM (PT_LOOS + 0x8)
+#define PT_HP_CORE_MMF (PT_LOOS + 0x9)
+#define PT_HP_PARALLEL (PT_LOOS + 0x10)
+#define PT_HP_FASTBIND (PT_LOOS + 0x11)
+#define PT_HP_OPT_ANNOT (PT_LOOS + 0x12)
+#define PT_HP_HSL_ANNOT (PT_LOOS + 0x13)
+#define PT_HP_STACK (PT_LOOS + 0x14)
+
+#define PT_PARISC_ARCHEXT 0x70000000
+#define PT_PARISC_UNWIND 0x70000001
+
+/* Legal values for p_flags field of Elf32_Phdr/Elf64_Phdr. */
+
+#define PF_PARISC_SBP 0x08000000
+
+#define PF_HP_PAGE_SIZE 0x00100000
+#define PF_HP_FAR_SHARED 0x00200000
+#define PF_HP_NEAR_SHARED 0x00400000
+#define PF_HP_CODE 0x01000000
+#define PF_HP_MODIFY 0x02000000
+#define PF_HP_LAZYSWAP 0x04000000
+#define PF_HP_SBP 0x08000000
+
+
+/* Alpha specific definitions. */
+
+/* Legal values for e_flags field of Elf64_Ehdr. */
+
+#define EF_ALPHA_32BIT 1 /* All addresses must be < 2GB. */
+#define EF_ALPHA_CANRELAX 2 /* Relocations for relaxing exist. */
+
+/* Legal values for sh_type field of Elf64_Shdr. */
+
+/* These two are primerily concerned with ECOFF debugging info. */
+#define SHT_ALPHA_DEBUG 0x70000001
+#define SHT_ALPHA_REGINFO 0x70000002
+
+/* Legal values for sh_flags field of Elf64_Shdr. */
+
+#define SHF_ALPHA_GPREL 0x10000000
+
+/* Legal values for st_other field of Elf64_Sym. */
+#define STO_ALPHA_NOPV 0x80 /* No PV required. */
+#define STO_ALPHA_STD_GPLOAD 0x88 /* PV only used for initial ldgp. */
+
+/* Alpha relocs. */
+
+#define R_ALPHA_NONE 0 /* No reloc */
+#define R_ALPHA_REFLONG 1 /* Direct 32 bit */
+#define R_ALPHA_REFQUAD 2 /* Direct 64 bit */
+#define R_ALPHA_GPREL32 3 /* GP relative 32 bit */
+#define R_ALPHA_LITERAL 4 /* GP relative 16 bit
w/optimization */
+#define R_ALPHA_LITUSE 5 /* Optimization hint for LITERAL */
+#define R_ALPHA_GPDISP 6 /* Add displacement to GP */
+#define R_ALPHA_BRADDR 7 /* PC+4 relative 23 bit shifted */
+#define R_ALPHA_HINT 8 /* PC+4 relative 16 bit shifted */
+#define R_ALPHA_SREL16 9 /* PC relative 16 bit */
+#define R_ALPHA_SREL32 10 /* PC relative 32 bit */
+#define R_ALPHA_SREL64 11 /* PC relative 64 bit */
+#define R_ALPHA_GPRELHIGH 17 /* GP relative 32 bit, high 16 bits */
+#define R_ALPHA_GPRELLOW 18 /* GP relative 32 bit, low 16 bits */
+#define R_ALPHA_GPREL16 19 /* GP relative 16 bit */
+#define R_ALPHA_COPY 24 /* Copy symbol at runtime */
+#define R_ALPHA_GLOB_DAT 25 /* Create GOT entry */
+#define R_ALPHA_JMP_SLOT 26 /* Create PLT entry */
+#define R_ALPHA_RELATIVE 27 /* Adjust by program base */
+#define R_ALPHA_TLS_GD_HI 28
+#define R_ALPHA_TLSGD 29
+#define R_ALPHA_TLS_LDM 30
+#define R_ALPHA_DTPMOD64 31
+#define R_ALPHA_GOTDTPREL 32
+#define R_ALPHA_DTPREL64 33
+#define R_ALPHA_DTPRELHI 34
+#define R_ALPHA_DTPRELLO 35
+#define R_ALPHA_DTPREL16 36
+#define R_ALPHA_GOTTPREL 37
+#define R_ALPHA_TPREL64 38
+#define R_ALPHA_TPRELHI 39
+#define R_ALPHA_TPRELLO 40
+#define R_ALPHA_TPREL16 41
+/* Keep this the last entry. */
+#define R_ALPHA_NUM 46
+
+/* Magic values of the LITUSE relocation addend. */
+#define LITUSE_ALPHA_ADDR 0
+#define LITUSE_ALPHA_BASE 1
+#define LITUSE_ALPHA_BYTOFF 2
+#define LITUSE_ALPHA_JSR 3
+#define LITUSE_ALPHA_TLS_GD 4
+#define LITUSE_ALPHA_TLS_LDM 5
+
+/* Legal values for d_tag of Elf64_Dyn. */
+#define DT_ALPHA_PLTRO (DT_LOPROC + 0)
+#define DT_ALPHA_NUM 1
+
+/* PowerPC specific declarations */
+
+/* Values for Elf32/64_Ehdr.e_flags. */
+#define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag */
+
+/* Cygnus local bits below */
+#define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag*/
+#define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib
+ flag */
+
+/* PowerPC relocations defined by the ABIs */
+#define R_PPC_NONE 0
+#define R_PPC_ADDR32 1 /* 32bit absolute address */
+#define R_PPC_ADDR24 2 /* 26bit address, 2 bits ignored. */
+#define R_PPC_ADDR16 3 /* 16bit absolute address */
+#define R_PPC_ADDR16_LO 4 /* lower 16bit of absolute
address */
+#define R_PPC_ADDR16_HI 5 /* high 16bit of absolute
address */
+#define R_PPC_ADDR16_HA 6 /* adjusted high 16bit */
+#define R_PPC_ADDR14 7 /* 16bit address, 2 bits ignored */
+#define R_PPC_ADDR14_BRTAKEN 8
+#define R_PPC_ADDR14_BRNTAKEN 9
+#define R_PPC_REL24 10 /* PC relative 26 bit */
+#define R_PPC_REL14 11 /* PC relative 16 bit */
+#define R_PPC_REL14_BRTAKEN 12
+#define R_PPC_REL14_BRNTAKEN 13
+#define R_PPC_GOT16 14
+#define R_PPC_GOT16_LO 15
+#define R_PPC_GOT16_HI 16
+#define R_PPC_GOT16_HA 17
+#define R_PPC_PLTREL24 18
+#define R_PPC_COPY 19
+#define R_PPC_GLOB_DAT 20
+#define R_PPC_JMP_SLOT 21
+#define R_PPC_RELATIVE 22
+#define R_PPC_LOCAL24PC 23
+#define R_PPC_UADDR32 24
+#define R_PPC_UADDR16 25
+#define R_PPC_REL32 26
+#define R_PPC_PLT32 27
+#define R_PPC_PLTREL32 28
+#define R_PPC_PLT16_LO 29
+#define R_PPC_PLT16_HI 30
+#define R_PPC_PLT16_HA 31
+#define R_PPC_SDAREL16 32
+#define R_PPC_SECTOFF 33
+#define R_PPC_SECTOFF_LO 34
+#define R_PPC_SECTOFF_HI 35
+#define R_PPC_SECTOFF_HA 36
+
+/* PowerPC relocations defined for the TLS access ABI. */
+#define R_PPC_TLS 67 /* none (sym+add)@tls */
+#define R_PPC_DTPMOD32 68 /* word32 (sym+add)@dtpmod */
+#define R_PPC_TPREL16 69 /* half16* (sym+add)@tprel */
+#define R_PPC_TPREL16_LO 70 /* half16 (sym+add)@address@hidden */
+#define R_PPC_TPREL16_HI 71 /* half16 (sym+add)@address@hidden */
+#define R_PPC_TPREL16_HA 72 /* half16 (sym+add)@address@hidden */
+#define R_PPC_TPREL32 73 /* word32 (sym+add)@tprel */
+#define R_PPC_DTPREL16 74 /* half16* (sym+add)@dtprel */
+#define R_PPC_DTPREL16_LO 75 /* half16 (sym+add)@address@hidden */
+#define R_PPC_DTPREL16_HI 76 /* half16 (sym+add)@address@hidden */
+#define R_PPC_DTPREL16_HA 77 /* half16 (sym+add)@address@hidden */
+#define R_PPC_DTPREL32 78 /* word32 (sym+add)@dtprel */
+#define R_PPC_GOT_TLSGD16 79 /* half16* (sym+add)@address@hidden */
+#define R_PPC_GOT_TLSGD16_LO 80 /* half16 (sym+add)@address@hidden@l */
+#define R_PPC_GOT_TLSGD16_HI 81 /* half16 (sym+add)@address@hidden@h */
+#define R_PPC_GOT_TLSGD16_HA 82 /* half16 (sym+add)@address@hidden@ha */
+#define R_PPC_GOT_TLSLD16 83 /* half16* (sym+add)@address@hidden */
+#define R_PPC_GOT_TLSLD16_LO 84 /* half16 (sym+add)@address@hidden@l */
+#define R_PPC_GOT_TLSLD16_HI 85 /* half16 (sym+add)@address@hidden@h */
+#define R_PPC_GOT_TLSLD16_HA 86 /* half16 (sym+add)@address@hidden@ha */
+#define R_PPC_GOT_TPREL16 87 /* half16* (sym+add)@address@hidden */
+#define R_PPC_GOT_TPREL16_LO 88 /* half16 (sym+add)@address@hidden@l */
+#define R_PPC_GOT_TPREL16_HI 89 /* half16 (sym+add)@address@hidden@h */
+#define R_PPC_GOT_TPREL16_HA 90 /* half16 (sym+add)@address@hidden@ha */
+#define R_PPC_GOT_DTPREL16 91 /* half16* (sym+add)@address@hidden */
+#define R_PPC_GOT_DTPREL16_LO 92 /* half16* (sym+add)@address@hidden@l */
+#define R_PPC_GOT_DTPREL16_HI 93 /* half16* (sym+add)@address@hidden@h */
+#define R_PPC_GOT_DTPREL16_HA 94 /* half16* (sym+add)@address@hidden@ha */
+
+/* The remaining relocs are from the Embedded ELF ABI, and are not
+ in the SVR4 ELF ABI. */
+#define R_PPC_EMB_NADDR32 101
+#define R_PPC_EMB_NADDR16 102
+#define R_PPC_EMB_NADDR16_LO 103
+#define R_PPC_EMB_NADDR16_HI 104
+#define R_PPC_EMB_NADDR16_HA 105
+#define R_PPC_EMB_SDAI16 106
+#define R_PPC_EMB_SDA2I16 107
+#define R_PPC_EMB_SDA2REL 108
+#define R_PPC_EMB_SDA21 109 /* 16 bit offset in SDA */
+#define R_PPC_EMB_MRKREF 110
+#define R_PPC_EMB_RELSEC16 111
+#define R_PPC_EMB_RELST_LO 112
+#define R_PPC_EMB_RELST_HI 113
+#define R_PPC_EMB_RELST_HA 114
+#define R_PPC_EMB_BIT_FLD 115
+#define R_PPC_EMB_RELSDA 116 /* 16 bit relative offset in SDA */
+
+/* Diab tool relocations. */
+#define R_PPC_DIAB_SDA21_LO 180 /* like EMB_SDA21, but lower 16 bit */
+#define R_PPC_DIAB_SDA21_HI 181 /* like EMB_SDA21, but high 16 bit */
+#define R_PPC_DIAB_SDA21_HA 182 /* like EMB_SDA21, adjusted high 16 */
+#define R_PPC_DIAB_RELSDA_LO 183 /* like EMB_RELSDA, but lower 16 bit */
+#define R_PPC_DIAB_RELSDA_HI 184 /* like EMB_RELSDA, but high 16 bit */
+#define R_PPC_DIAB_RELSDA_HA 185 /* like EMB_RELSDA, adjusted high 16 */
+
+/* GNU extension to support local ifunc. */
+#define R_PPC_IRELATIVE 248
+
+/* GNU relocs used in PIC code sequences. */
+#define R_PPC_REL16 249 /* half16 (sym+add-.) */
+#define R_PPC_REL16_LO 250 /* half16 (sym+add-.)@l */
+#define R_PPC_REL16_HI 251 /* half16 (sym+add-.)@h */
+#define R_PPC_REL16_HA 252 /* half16 (sym+add-.)@ha */
+
+/* This is a phony reloc to handle any old fashioned TOC16 references
+ that may still be in object files. */
+#define R_PPC_TOC16 255
+
+/* PowerPC specific values for the Dyn d_tag field. */
+#define DT_PPC_GOT (DT_LOPROC + 0)
+#define DT_PPC_NUM 1
+
+/* PowerPC64 relocations defined by the ABIs */
+#define R_PPC64_NONE R_PPC_NONE
+#define R_PPC64_ADDR32 R_PPC_ADDR32 /* 32bit absolute address */
+#define R_PPC64_ADDR24 R_PPC_ADDR24 /* 26bit address, word aligned */
+#define R_PPC64_ADDR16 R_PPC_ADDR16 /* 16bit absolute address */
+#define R_PPC64_ADDR16_LO R_PPC_ADDR16_LO /* lower 16bits of address */
+#define R_PPC64_ADDR16_HI R_PPC_ADDR16_HI /* high 16bits of address. */
+#define R_PPC64_ADDR16_HA R_PPC_ADDR16_HA /* adjusted high 16bits. */
+#define R_PPC64_ADDR14 R_PPC_ADDR14 /* 16bit address, word aligned */
+#define R_PPC64_ADDR14_BRTAKEN R_PPC_ADDR14_BRTAKEN
+#define R_PPC64_ADDR14_BRNTAKEN R_PPC_ADDR14_BRNTAKEN
+#define R_PPC64_REL24 R_PPC_REL24 /* PC-rel. 26 bit, word aligned */
+#define R_PPC64_REL14 R_PPC_REL14 /* PC relative 16 bit */
+#define R_PPC64_REL14_BRTAKEN R_PPC_REL14_BRTAKEN
+#define R_PPC64_REL14_BRNTAKEN R_PPC_REL14_BRNTAKEN
+#define R_PPC64_GOT16 R_PPC_GOT16
+#define R_PPC64_GOT16_LO R_PPC_GOT16_LO
+#define R_PPC64_GOT16_HI R_PPC_GOT16_HI
+#define R_PPC64_GOT16_HA R_PPC_GOT16_HA
+
+#define R_PPC64_COPY R_PPC_COPY
+#define R_PPC64_GLOB_DAT R_PPC_GLOB_DAT
+#define R_PPC64_JMP_SLOT R_PPC_JMP_SLOT
+#define R_PPC64_RELATIVE R_PPC_RELATIVE
+
+#define R_PPC64_UADDR32 R_PPC_UADDR32
+#define R_PPC64_UADDR16 R_PPC_UADDR16
+#define R_PPC64_REL32 R_PPC_REL32
+#define R_PPC64_PLT32 R_PPC_PLT32
+#define R_PPC64_PLTREL32 R_PPC_PLTREL32
+#define R_PPC64_PLT16_LO R_PPC_PLT16_LO
+#define R_PPC64_PLT16_HI R_PPC_PLT16_HI
+#define R_PPC64_PLT16_HA R_PPC_PLT16_HA
+
+#define R_PPC64_SECTOFF R_PPC_SECTOFF
+#define R_PPC64_SECTOFF_LO R_PPC_SECTOFF_LO
+#define R_PPC64_SECTOFF_HI R_PPC_SECTOFF_HI
+#define R_PPC64_SECTOFF_HA R_PPC_SECTOFF_HA
+#define R_PPC64_ADDR30 37 /* word30 (S + A - P) >> 2 */
+#define R_PPC64_ADDR64 38 /* doubleword64 S + A */
+#define R_PPC64_ADDR16_HIGHER 39 /* half16 #higher(S + A) */
+#define R_PPC64_ADDR16_HIGHERA 40 /* half16 #highera(S + A) */
+#define R_PPC64_ADDR16_HIGHEST 41 /* half16 #highest(S + A) */
+#define R_PPC64_ADDR16_HIGHESTA 42 /* half16 #highesta(S + A) */
+#define R_PPC64_UADDR64 43 /* doubleword64 S + A */
+#define R_PPC64_REL64 44 /* doubleword64 S + A - P */
+#define R_PPC64_PLT64 45 /* doubleword64 L + A */
+#define R_PPC64_PLTREL64 46 /* doubleword64 L + A - P */
+#define R_PPC64_TOC16 47 /* half16* S + A - .TOC */
+#define R_PPC64_TOC16_LO 48 /* half16 #lo(S + A - .TOC.) */
+#define R_PPC64_TOC16_HI 49 /* half16 #hi(S + A - .TOC.) */
+#define R_PPC64_TOC16_HA 50 /* half16 #ha(S + A - .TOC.) */
+#define R_PPC64_TOC 51 /* doubleword64 .TOC */
+#define R_PPC64_PLTGOT16 52 /* half16* M + A */
+#define R_PPC64_PLTGOT16_LO 53 /* half16 #lo(M + A) */
+#define R_PPC64_PLTGOT16_HI 54 /* half16 #hi(M + A) */
+#define R_PPC64_PLTGOT16_HA 55 /* half16 #ha(M + A) */
+
+#define R_PPC64_ADDR16_DS 56 /* half16ds* (S + A) >> 2 */
+#define R_PPC64_ADDR16_LO_DS 57 /* half16ds #lo(S + A) >> 2 */
+#define R_PPC64_GOT16_DS 58 /* half16ds* (G + A) >> 2 */
+#define R_PPC64_GOT16_LO_DS 59 /* half16ds #lo(G + A) >> 2 */
+#define R_PPC64_PLT16_LO_DS 60 /* half16ds #lo(L + A) >> 2 */
+#define R_PPC64_SECTOFF_DS 61 /* half16ds* (R + A) >> 2 */
+#define R_PPC64_SECTOFF_LO_DS 62 /* half16ds #lo(R + A) >> 2 */
+#define R_PPC64_TOC16_DS 63 /* half16ds* (S + A - .TOC.) >> 2 */
+#define R_PPC64_TOC16_LO_DS 64 /* half16ds #lo(S + A - .TOC.) >> 2 */
+#define R_PPC64_PLTGOT16_DS 65 /* half16ds* (M + A) >> 2 */
+#define R_PPC64_PLTGOT16_LO_DS 66 /* half16ds #lo(M + A) >> 2 */
+
+/* PowerPC64 relocations defined for the TLS access ABI. */
+#define R_PPC64_TLS 67 /* none (sym+add)@tls */
+#define R_PPC64_DTPMOD64 68 /* doubleword64 (sym+add)@dtpmod */
+#define R_PPC64_TPREL16 69 /* half16* (sym+add)@tprel */
+#define R_PPC64_TPREL16_LO 70 /* half16 (sym+add)@address@hidden */
+#define R_PPC64_TPREL16_HI 71 /* half16 (sym+add)@address@hidden */
+#define R_PPC64_TPREL16_HA 72 /* half16 (sym+add)@address@hidden */
+#define R_PPC64_TPREL64 73 /* doubleword64 (sym+add)@tprel */
+#define R_PPC64_DTPREL16 74 /* half16* (sym+add)@dtprel */
+#define R_PPC64_DTPREL16_LO 75 /* half16 (sym+add)@address@hidden */
+#define R_PPC64_DTPREL16_HI 76 /* half16 (sym+add)@address@hidden */
+#define R_PPC64_DTPREL16_HA 77 /* half16 (sym+add)@address@hidden */
+#define R_PPC64_DTPREL64 78 /* doubleword64 (sym+add)@dtprel */
+#define R_PPC64_GOT_TLSGD16 79 /* half16* (sym+add)@address@hidden */
+#define R_PPC64_GOT_TLSGD16_LO 80 /* half16 (sym+add)@address@hidden@l */
+#define R_PPC64_GOT_TLSGD16_HI 81 /* half16 (sym+add)@address@hidden@h */
+#define R_PPC64_GOT_TLSGD16_HA 82 /* half16 (sym+add)@address@hidden@ha */
+#define R_PPC64_GOT_TLSLD16 83 /* half16* (sym+add)@address@hidden */
+#define R_PPC64_GOT_TLSLD16_LO 84 /* half16 (sym+add)@address@hidden@l */
+#define R_PPC64_GOT_TLSLD16_HI 85 /* half16 (sym+add)@address@hidden@h */
+#define R_PPC64_GOT_TLSLD16_HA 86 /* half16 (sym+add)@address@hidden@ha */
+#define R_PPC64_GOT_TPREL16_DS 87 /* half16ds* (sym+add)@address@hidden */
+#define R_PPC64_GOT_TPREL16_LO_DS 88 /* half16ds (sym+add)@address@hidden@l */
+#define R_PPC64_GOT_TPREL16_HI 89 /* half16 (sym+add)@address@hidden@h */
+#define R_PPC64_GOT_TPREL16_HA 90 /* half16 (sym+add)@address@hidden@ha */
+#define R_PPC64_GOT_DTPREL16_DS 91 /* half16ds*
(sym+add)@address@hidden */
+#define R_PPC64_GOT_DTPREL16_LO_DS 92 /* half16ds (sym+add)@address@hidden@l */
+#define R_PPC64_GOT_DTPREL16_HI 93 /* half16
(sym+add)@address@hidden@h */
+#define R_PPC64_GOT_DTPREL16_HA 94 /* half16
(sym+add)@address@hidden@ha */
+#define R_PPC64_TPREL16_DS 95 /* half16ds* (sym+add)@tprel */
+#define R_PPC64_TPREL16_LO_DS 96 /* half16ds (sym+add)@address@hidden */
+#define R_PPC64_TPREL16_HIGHER 97 /* half16 (sym+add)@address@hidden */
+#define R_PPC64_TPREL16_HIGHERA 98 /* half16
(sym+add)@address@hidden */
+#define R_PPC64_TPREL16_HIGHEST 99 /* half16
(sym+add)@address@hidden */
+#define R_PPC64_TPREL16_HIGHESTA 100 /* half16 (sym+add)@address@hidden */
+#define R_PPC64_DTPREL16_DS 101 /* half16ds* (sym+add)@dtprel */
+#define R_PPC64_DTPREL16_LO_DS 102 /* half16ds (sym+add)@address@hidden */
+#define R_PPC64_DTPREL16_HIGHER 103 /* half16
(sym+add)@address@hidden */
+#define R_PPC64_DTPREL16_HIGHERA 104 /* half16 (sym+add)@address@hidden */
+#define R_PPC64_DTPREL16_HIGHEST 105 /* half16 (sym+add)@address@hidden */
+#define R_PPC64_DTPREL16_HIGHESTA 106 /* half16
(sym+add)@address@hidden */
+
+/* GNU extension to support local ifunc. */
+#define R_PPC64_JMP_IREL 247
+#define R_PPC64_IRELATIVE 248
+#define R_PPC64_REL16 249 /* half16 (sym+add-.) */
+#define R_PPC64_REL16_LO 250 /* half16 (sym+add-.)@l */
+#define R_PPC64_REL16_HI 251 /* half16 (sym+add-.)@h */
+#define R_PPC64_REL16_HA 252 /* half16 (sym+add-.)@ha */
+
+/* PowerPC64 specific values for the Dyn d_tag field. */
+#define DT_PPC64_GLINK (DT_LOPROC + 0)
+#define DT_PPC64_OPD (DT_LOPROC + 1)
+#define DT_PPC64_OPDSZ (DT_LOPROC + 2)
+#define DT_PPC64_NUM 3
+
+
+/* ARM specific declarations */
+
+/* Processor specific flags for the ELF header e_flags field. */
+#define EF_ARM_RELEXEC 0x01
+#define EF_ARM_HASENTRY 0x02
+#define EF_ARM_INTERWORK 0x04
+#define EF_ARM_APCS_26 0x08
+#define EF_ARM_APCS_FLOAT 0x10
+#define EF_ARM_PIC 0x20
+#define EF_ARM_ALIGN8 0x40 /* 8-bit structure alignment is in use */
+#define EF_ARM_NEW_ABI 0x80
+#define EF_ARM_OLD_ABI 0x100
+#define EF_ARM_SOFT_FLOAT 0x200
+#define EF_ARM_VFP_FLOAT 0x400
+#define EF_ARM_MAVERICK_FLOAT 0x800
+
+
+/* Other constants defined in the ARM ELF spec. version B-01. */
+/* NB. These conflict with values defined above. */
+#define EF_ARM_SYMSARESORTED 0x04
+#define EF_ARM_DYNSYMSUSESEGIDX 0x08
+#define EF_ARM_MAPSYMSFIRST 0x10
+#define EF_ARM_EABIMASK 0XFF000000
+
+/* Constants defined in AAELF. */
+#define EF_ARM_BE8 0x00800000
+#define EF_ARM_LE8 0x00400000
+
+#define EF_ARM_EABI_VERSION(flags) ((flags) & EF_ARM_EABIMASK)
+#define EF_ARM_EABI_UNKNOWN 0x00000000
+#define EF_ARM_EABI_VER1 0x01000000
+#define EF_ARM_EABI_VER2 0x02000000
+#define EF_ARM_EABI_VER3 0x03000000
+#define EF_ARM_EABI_VER4 0x04000000
+#define EF_ARM_EABI_VER5 0x05000000
+
+/* Additional symbol types for Thumb. */
+#define STT_ARM_TFUNC STT_LOPROC /* A Thumb function. */
+#define STT_ARM_16BIT STT_HIPROC /* A Thumb label. */
+
+/* ARM-specific values for sh_flags */
+#define SHF_ARM_ENTRYSECT 0x10000000 /* Section contains an entry point */
+#define SHF_ARM_COMDEF 0x80000000 /* Section may be multiply defined
+ in the input to a link step. */
+
+/* ARM-specific program header flags */
+#define PF_ARM_SB 0x10000000 /* Segment contains the location
+ addressed by the static base. */
+#define PF_ARM_PI 0x20000000 /* Position-independent segment. */
+#define PF_ARM_ABS 0x40000000 /* Absolute segment. */
+
+/* Processor specific values for the Phdr p_type field. */
+#define PT_ARM_EXIDX (PT_LOPROC + 1) /* ARM unwind segment. */
+
+/* Processor specific values for the Shdr sh_type field. */
+#define SHT_ARM_EXIDX (SHT_LOPROC + 1) /* ARM unwind section. */
+#define SHT_ARM_PREEMPTMAP (SHT_LOPROC + 2) /* Preemption details. */
+#define SHT_ARM_ATTRIBUTES (SHT_LOPROC + 3) /* ARM attributes section. */
+
+
+/* ARM relocs. */
+
+#define R_ARM_NONE 0 /* No reloc */
+#define R_ARM_PC24 1 /* PC relative 26 bit branch */
+#define R_ARM_ABS32 2 /* Direct 32 bit */
+#define R_ARM_REL32 3 /* PC relative 32 bit */
+#define R_ARM_PC13 4
+#define R_ARM_ABS16 5 /* Direct 16 bit */
+#define R_ARM_ABS12 6 /* Direct 12 bit */
+#define R_ARM_THM_ABS5 7
+#define R_ARM_ABS8 8 /* Direct 8 bit */
+#define R_ARM_SBREL32 9
+#define R_ARM_THM_PC22 10
+#define R_ARM_THM_PC8 11
+#define R_ARM_AMP_VCALL9 12
+#define R_ARM_SWI24 13
+#define R_ARM_THM_SWI8 14
+#define R_ARM_XPC25 15
+#define R_ARM_THM_XPC22 16
+#define R_ARM_TLS_DTPMOD32 17 /* ID of module containing symbol */
+#define R_ARM_TLS_DTPOFF32 18 /* Offset in TLS block */
+#define R_ARM_TLS_TPOFF32 19 /* Offset in static TLS block */
+#define R_ARM_COPY 20 /* Copy symbol at runtime */
+#define R_ARM_GLOB_DAT 21 /* Create GOT entry */
+#define R_ARM_JUMP_SLOT 22 /* Create PLT entry */
+#define R_ARM_RELATIVE 23 /* Adjust by program base */
+#define R_ARM_GOTOFF 24 /* 32 bit offset to GOT */
+#define R_ARM_GOTPC 25 /* 32 bit PC relative offset to GOT */
+#define R_ARM_GOT32 26 /* 32 bit GOT entry */
+#define R_ARM_PLT32 27 /* 32 bit PLT address */
+#define R_ARM_ALU_PCREL_7_0 32
+#define R_ARM_ALU_PCREL_15_8 33
+#define R_ARM_ALU_PCREL_23_15 34
+#define R_ARM_LDR_SBREL_11_0 35
+#define R_ARM_ALU_SBREL_19_12 36
+#define R_ARM_ALU_SBREL_27_20 37
+#define R_ARM_GNU_VTENTRY 100
+#define R_ARM_GNU_VTINHERIT 101
+#define R_ARM_THM_PC11 102 /* thumb unconditional branch */
+#define R_ARM_THM_PC9 103 /* thumb conditional branch */
+#define R_ARM_TLS_GD32 104 /* PC-rel 32 bit for global dynamic
+ thread local data */
+#define R_ARM_TLS_LDM32 105 /* PC-rel 32 bit for local
dynamic
+ thread local data */
+#define R_ARM_TLS_LDO32 106 /* 32 bit offset relative to TLS
+ block */
+#define R_ARM_TLS_IE32 107 /* PC-rel 32 bit for GOT entry of
+ static TLS block offset */
+#define R_ARM_TLS_LE32 108 /* 32 bit offset relative to static
+ TLS block */
+#define R_ARM_RXPC25 249
+#define R_ARM_RSBREL32 250
+#define R_ARM_THM_RPC22 251
+#define R_ARM_RREL32 252
+#define R_ARM_RABS22 253
+#define R_ARM_RPC24 254
+#define R_ARM_RBASE 255
+/* Keep this the last entry. */
+#define R_ARM_NUM 256
+
+/* IA-64 specific declarations. */
+
+/* Processor specific flags for the Ehdr e_flags field. */
+#define EF_IA_64_MASKOS 0x0000000f /* os-specific flags */
+#define EF_IA_64_ABI64 0x00000010 /* 64-bit ABI */
+#define EF_IA_64_ARCH 0xff000000 /* arch. version mask */
+
+/* Processor specific values for the Phdr p_type field. */
+#define PT_IA_64_ARCHEXT (PT_LOPROC + 0) /* arch extension bits */
+#define PT_IA_64_UNWIND (PT_LOPROC + 1) /* ia64 unwind bits */
+#define PT_IA_64_HP_OPT_ANOT (PT_LOOS + 0x12)
+#define PT_IA_64_HP_HSL_ANOT (PT_LOOS + 0x13)
+#define PT_IA_64_HP_STACK (PT_LOOS + 0x14)
+
+/* Processor specific flags for the Phdr p_flags field. */
+#define PF_IA_64_NORECOV 0x80000000 /* spec insns w/o recovery */
+
+/* Processor specific values for the Shdr sh_type field. */
+#define SHT_IA_64_EXT (SHT_LOPROC + 0) /* extension bits */
+#define SHT_IA_64_UNWIND (SHT_LOPROC + 1) /* unwind bits */
+
+/* Processor specific flags for the Shdr sh_flags field. */
+#define SHF_IA_64_SHORT 0x10000000 /* section near gp */
+#define SHF_IA_64_NORECOV 0x20000000 /* spec insns w/o recovery */
+
+/* Processor specific values for the Dyn d_tag field. */
+#define DT_IA_64_PLT_RESERVE (DT_LOPROC + 0)
+#define DT_IA_64_NUM 1
+
+/* IA-64 relocations. */
+#define R_IA64_NONE 0x00 /* none */
+#define R_IA64_IMM14 0x21 /* symbol + addend, add imm14 */
+#define R_IA64_IMM22 0x22 /* symbol + addend, add imm22 */
+#define R_IA64_IMM64 0x23 /* symbol + addend, mov imm64 */
+#define R_IA64_DIR32MSB 0x24 /* symbol + addend, data4 MSB */
+#define R_IA64_DIR32LSB 0x25 /* symbol + addend, data4 LSB */
+#define R_IA64_DIR64MSB 0x26 /* symbol + addend, data8 MSB */
+#define R_IA64_DIR64LSB 0x27 /* symbol + addend, data8 LSB */
+#define R_IA64_GPREL22 0x2a /* @gprel(sym + add), add imm22 */
+#define R_IA64_GPREL64I 0x2b /* @gprel(sym + add), mov imm64
*/
+#define R_IA64_GPREL32MSB 0x2c /* @gprel(sym + add), data4 MSB */
+#define R_IA64_GPREL32LSB 0x2d /* @gprel(sym + add), data4 LSB */
+#define R_IA64_GPREL64MSB 0x2e /* @gprel(sym + add), data8 MSB */
+#define R_IA64_GPREL64LSB 0x2f /* @gprel(sym + add), data8 LSB */
+#define R_IA64_LTOFF22 0x32 /* @ltoff(sym + add), add imm22 */
+#define R_IA64_LTOFF64I 0x33 /* @ltoff(sym + add), mov imm64
*/
+#define R_IA64_PLTOFF22 0x3a /* @pltoff(sym + add), add
imm22 */
+#define R_IA64_PLTOFF64I 0x3b /* @pltoff(sym + add), mov imm64 */
+#define R_IA64_PLTOFF64MSB 0x3e /* @pltoff(sym + add), data8 MSB */
+#define R_IA64_PLTOFF64LSB 0x3f /* @pltoff(sym + add), data8 LSB */
+#define R_IA64_FPTR64I 0x43 /* @fptr(sym + add), mov imm64 */
+#define R_IA64_FPTR32MSB 0x44 /* @fptr(sym + add), data4 MSB */
+#define R_IA64_FPTR32LSB 0x45 /* @fptr(sym + add), data4 LSB */
+#define R_IA64_FPTR64MSB 0x46 /* @fptr(sym + add), data8 MSB */
+#define R_IA64_FPTR64LSB 0x47 /* @fptr(sym + add), data8 LSB */
+#define R_IA64_PCREL60B 0x48 /* @pcrel(sym + add), brl */
+#define R_IA64_PCREL21B 0x49 /* @pcrel(sym + add), ptb, call
*/
+#define R_IA64_PCREL21M 0x4a /* @pcrel(sym + add), chk.s */
+#define R_IA64_PCREL21F 0x4b /* @pcrel(sym + add), fchkf */
+#define R_IA64_PCREL32MSB 0x4c /* @pcrel(sym + add), data4 MSB */
+#define R_IA64_PCREL32LSB 0x4d /* @pcrel(sym + add), data4 LSB */
+#define R_IA64_PCREL64MSB 0x4e /* @pcrel(sym + add), data8 MSB */
+#define R_IA64_PCREL64LSB 0x4f /* @pcrel(sym + add), data8 LSB */
+#define R_IA64_LTOFF_FPTR22 0x52 /* @ltoff(@fptr(s+a)), imm22 */
+#define R_IA64_LTOFF_FPTR64I 0x53 /* @ltoff(@fptr(s+a)), imm64 */
+#define R_IA64_LTOFF_FPTR32MSB 0x54 /* @ltoff(@fptr(s+a)), data4 MSB */
+#define R_IA64_LTOFF_FPTR32LSB 0x55 /* @ltoff(@fptr(s+a)), data4 LSB */
+#define R_IA64_LTOFF_FPTR64MSB 0x56 /* @ltoff(@fptr(s+a)), data8 MSB */
+#define R_IA64_LTOFF_FPTR64LSB 0x57 /* @ltoff(@fptr(s+a)), data8 LSB */
+#define R_IA64_SEGREL32MSB 0x5c /* @segrel(sym + add), data4 MSB */
+#define R_IA64_SEGREL32LSB 0x5d /* @segrel(sym + add), data4 LSB */
+#define R_IA64_SEGREL64MSB 0x5e /* @segrel(sym + add), data8 MSB */
+#define R_IA64_SEGREL64LSB 0x5f /* @segrel(sym + add), data8 LSB */
+#define R_IA64_SECREL32MSB 0x64 /* @secrel(sym + add), data4 MSB */
+#define R_IA64_SECREL32LSB 0x65 /* @secrel(sym + add), data4 LSB */
+#define R_IA64_SECREL64MSB 0x66 /* @secrel(sym + add), data8 MSB */
+#define R_IA64_SECREL64LSB 0x67 /* @secrel(sym + add), data8 LSB */
+#define R_IA64_REL32MSB 0x6c /* data 4 + REL */
+#define R_IA64_REL32LSB 0x6d /* data 4 + REL */
+#define R_IA64_REL64MSB 0x6e /* data 8 + REL */
+#define R_IA64_REL64LSB 0x6f /* data 8 + REL */
+#define R_IA64_LTV32MSB 0x74 /* symbol + addend, data4 MSB */
+#define R_IA64_LTV32LSB 0x75 /* symbol + addend, data4 LSB */
+#define R_IA64_LTV64MSB 0x76 /* symbol + addend, data8 MSB */
+#define R_IA64_LTV64LSB 0x77 /* symbol + addend, data8 LSB */
+#define R_IA64_PCREL21BI 0x79 /* @pcrel(sym + add), 21bit inst */
+#define R_IA64_PCREL22 0x7a /* @pcrel(sym + add), 22bit inst */
+#define R_IA64_PCREL64I 0x7b /* @pcrel(sym + add), 64bit
inst */
+#define R_IA64_IPLTMSB 0x80 /* dynamic reloc, imported PLT, MSB */
+#define R_IA64_IPLTLSB 0x81 /* dynamic reloc, imported PLT, LSB */
+#define R_IA64_COPY 0x84 /* copy relocation */
+#define R_IA64_SUB 0x85 /* Addend and symbol difference */
+#define R_IA64_LTOFF22X 0x86 /* LTOFF22, relaxable. */
+#define R_IA64_LDXMOV 0x87 /* Use of LTOFF22X. */
+#define R_IA64_TPREL14 0x91 /* @tprel(sym + add), imm14 */
+#define R_IA64_TPREL22 0x92 /* @tprel(sym + add), imm22 */
+#define R_IA64_TPREL64I 0x93 /* @tprel(sym + add), imm64 */
+#define R_IA64_TPREL64MSB 0x96 /* @tprel(sym + add), data8 MSB */
+#define R_IA64_TPREL64LSB 0x97 /* @tprel(sym + add), data8 LSB */
+#define R_IA64_LTOFF_TPREL22 0x9a /* @ltoff(@tprel(s+a)), imm2 */
+#define R_IA64_DTPMOD64MSB 0xa6 /* @dtpmod(sym + add), data8 MSB */
+#define R_IA64_DTPMOD64LSB 0xa7 /* @dtpmod(sym + add), data8 LSB */
+#define R_IA64_LTOFF_DTPMOD22 0xaa /* @ltoff(@dtpmod(sym + add)), imm22 */
+#define R_IA64_DTPREL14 0xb1 /* @dtprel(sym + add), imm14 */
+#define R_IA64_DTPREL22 0xb2 /* @dtprel(sym + add), imm22 */
+#define R_IA64_DTPREL64I 0xb3 /* @dtprel(sym + add), imm64 */
+#define R_IA64_DTPREL32MSB 0xb4 /* @dtprel(sym + add), data4 MSB */
+#define R_IA64_DTPREL32LSB 0xb5 /* @dtprel(sym + add), data4 LSB */
+#define R_IA64_DTPREL64MSB 0xb6 /* @dtprel(sym + add), data8 MSB */
+#define R_IA64_DTPREL64LSB 0xb7 /* @dtprel(sym + add), data8 LSB */
+#define R_IA64_LTOFF_DTPREL22 0xba /* @ltoff(@dtprel(s+a)), imm22 */
+
+/* SH specific declarations */
+
+/* Processor specific flags for the ELF header e_flags field. */
+#define EF_SH_MACH_MASK 0x1f
+#define EF_SH_UNKNOWN 0x0
+#define EF_SH1 0x1
+#define EF_SH2 0x2
+#define EF_SH3 0x3
+#define EF_SH_DSP 0x4
+#define EF_SH3_DSP 0x5
+#define EF_SH4AL_DSP 0x6
+#define EF_SH3E 0x8
+#define EF_SH4 0x9
+#define EF_SH2E 0xb
+#define EF_SH4A 0xc
+#define EF_SH2A 0xd
+#define EF_SH4_NOFPU 0x10
+#define EF_SH4A_NOFPU 0x11
+#define EF_SH4_NOMMU_NOFPU 0x12
+#define EF_SH2A_NOFPU 0x13
+#define EF_SH3_NOMMU 0x14
+#define EF_SH2A_SH4_NOFPU 0x15
+#define EF_SH2A_SH3_NOFPU 0x16
+#define EF_SH2A_SH4 0x17
+#define EF_SH2A_SH3E 0x18
+
+/* SH relocs. */
+#define R_SH_NONE 0
+#define R_SH_DIR32 1
+#define R_SH_REL32 2
+#define R_SH_DIR8WPN 3
+#define R_SH_IND12W 4
+#define R_SH_DIR8WPL 5
+#define R_SH_DIR8WPZ 6
+#define R_SH_DIR8BP 7
+#define R_SH_DIR8W 8
+#define R_SH_DIR8L 9
+#define R_SH_SWITCH16 25
+#define R_SH_SWITCH32 26
+#define R_SH_USES 27
+#define R_SH_COUNT 28
+#define R_SH_ALIGN 29
+#define R_SH_CODE 30
+#define R_SH_DATA 31
+#define R_SH_LABEL 32
+#define R_SH_SWITCH8 33
+#define R_SH_GNU_VTINHERIT 34
+#define R_SH_GNU_VTENTRY 35
+#define R_SH_TLS_GD_32 144
+#define R_SH_TLS_LD_32 145
+#define R_SH_TLS_LDO_32 146
+#define R_SH_TLS_IE_32 147
+#define R_SH_TLS_LE_32 148
+#define R_SH_TLS_DTPMOD32 149
+#define R_SH_TLS_DTPOFF32 150
+#define R_SH_TLS_TPOFF32 151
+#define R_SH_GOT32 160
+#define R_SH_PLT32 161
+#define R_SH_COPY 162
+#define R_SH_GLOB_DAT 163
+#define R_SH_JMP_SLOT 164
+#define R_SH_RELATIVE 165
+#define R_SH_GOTOFF 166
+#define R_SH_GOTPC 167
+/* Keep this the last entry. */
+#define R_SH_NUM 256
+
+/* S/390 specific definitions. */
+
+/* Valid values for the e_flags field. */
+
+#define EF_S390_HIGH_GPRS 0x00000001 /* High GPRs kernel facility needed.
*/
+
+/* Additional s390 relocs */
+
+#define R_390_NONE 0 /* No reloc. */
+#define R_390_8 1 /* Direct 8 bit. */
+#define R_390_12 2 /* Direct 12 bit. */
+#define R_390_16 3 /* Direct 16 bit. */
+#define R_390_32 4 /* Direct 32 bit. */
+#define R_390_PC32 5 /* PC relative 32 bit. */
+#define R_390_GOT12 6 /* 12 bit GOT offset. */
+#define R_390_GOT32 7 /* 32 bit GOT offset. */
+#define R_390_PLT32 8 /* 32 bit PC relative PLT address. */
+#define R_390_COPY 9 /* Copy symbol at runtime. */
+#define R_390_GLOB_DAT 10 /* Create GOT entry. */
+#define R_390_JMP_SLOT 11 /* Create PLT entry. */
+#define R_390_RELATIVE 12 /* Adjust by program base. */
+#define R_390_GOTOFF32 13 /* 32 bit offset to GOT. */
+#define R_390_GOTPC 14 /* 32 bit PC relative offset to GOT. */
+#define R_390_GOT16 15 /* 16 bit GOT offset. */
+#define R_390_PC16 16 /* PC relative 16 bit. */
+#define R_390_PC16DBL 17 /* PC relative 16 bit shifted by 1. */
+#define R_390_PLT16DBL 18 /* 16 bit PC rel. PLT shifted by 1. */
+#define R_390_PC32DBL 19 /* PC relative 32 bit shifted by 1. */
+#define R_390_PLT32DBL 20 /* 32 bit PC rel. PLT shifted by 1. */
+#define R_390_GOTPCDBL 21 /* 32 bit PC rel. GOT shifted by 1. */
+#define R_390_64 22 /* Direct 64 bit. */
+#define R_390_PC64 23 /* PC relative 64 bit. */
+#define R_390_GOT64 24 /* 64 bit GOT offset. */
+#define R_390_PLT64 25 /* 64 bit PC relative PLT address. */
+#define R_390_GOTENT 26 /* 32 bit PC rel. to GOT entry >> 1. */
+#define R_390_GOTOFF16 27 /* 16 bit offset to GOT. */
+#define R_390_GOTOFF64 28 /* 64 bit offset to GOT. */
+#define R_390_GOTPLT12 29 /* 12 bit offset to jump slot. */
+#define R_390_GOTPLT16 30 /* 16 bit offset to jump slot. */
+#define R_390_GOTPLT32 31 /* 32 bit offset to jump slot. */
+#define R_390_GOTPLT64 32 /* 64 bit offset to jump slot. */
+#define R_390_GOTPLTENT 33 /* 32 bit rel. offset to jump
slot. */
+#define R_390_PLTOFF16 34 /* 16 bit offset from GOT to PLT. */
+#define R_390_PLTOFF32 35 /* 32 bit offset from GOT to PLT. */
+#define R_390_PLTOFF64 36 /* 16 bit offset from GOT to PLT. */
+#define R_390_TLS_LOAD 37 /* Tag for load insn in TLS code. */
+#define R_390_TLS_GDCALL 38 /* Tag for function call in general
+ dynamic TLS code. */
+#define R_390_TLS_LDCALL 39 /* Tag for function call in local
+ dynamic TLS code. */
+#define R_390_TLS_GD32 40 /* Direct 32 bit for general dynamic
+ thread local data. */
+#define R_390_TLS_GD64 41 /* Direct 64 bit for general dynamic
+ thread local data. */
+#define R_390_TLS_GOTIE12 42 /* 12 bit GOT offset for static TLS
+ block offset. */
+#define R_390_TLS_GOTIE32 43 /* 32 bit GOT offset for static TLS
+ block offset. */
+#define R_390_TLS_GOTIE64 44 /* 64 bit GOT offset for static TLS
+ block offset. */
+#define R_390_TLS_LDM32 45 /* Direct 32 bit for local
dynamic
+ thread local data in LE code. */
+#define R_390_TLS_LDM64 46 /* Direct 64 bit for local
dynamic
+ thread local data in LE code. */
+#define R_390_TLS_IE32 47 /* 32 bit address of GOT entry for
+ negated static TLS block offset. */
+#define R_390_TLS_IE64 48 /* 64 bit address of GOT entry for
+ negated static TLS block offset. */
+#define R_390_TLS_IEENT 49 /* 32 bit rel. offset to GOT
entry for
+ negated static TLS block offset. */
+#define R_390_TLS_LE32 50 /* 32 bit negated offset relative to
+ static TLS block. */
+#define R_390_TLS_LE64 51 /* 64 bit negated offset relative to
+ static TLS block. */
+#define R_390_TLS_LDO32 52 /* 32 bit offset relative to TLS
+ block. */
+#define R_390_TLS_LDO64 53 /* 64 bit offset relative to TLS
+ block. */
+#define R_390_TLS_DTPMOD 54 /* ID of module containing symbol. */
+#define R_390_TLS_DTPOFF 55 /* Offset in TLS block. */
+#define R_390_TLS_TPOFF 56 /* Negated offset in static TLS
+ block. */
+#define R_390_20 57 /* Direct 20 bit. */
+#define R_390_GOT20 58 /* 20 bit GOT offset. */
+#define R_390_GOTPLT20 59 /* 20 bit offset to jump slot. */
+#define R_390_TLS_GOTIE20 60 /* 20 bit GOT offset for static TLS
+ block offset. */
+/* Keep this the last entry. */
+#define R_390_NUM 61
+
+
+/* CRIS relocations. */
+#define R_CRIS_NONE 0
+#define R_CRIS_8 1
+#define R_CRIS_16 2
+#define R_CRIS_32 3
+#define R_CRIS_8_PCREL 4
+#define R_CRIS_16_PCREL 5
+#define R_CRIS_32_PCREL 6
+#define R_CRIS_GNU_VTINHERIT 7
+#define R_CRIS_GNU_VTENTRY 8
+#define R_CRIS_COPY 9
+#define R_CRIS_GLOB_DAT 10
+#define R_CRIS_JUMP_SLOT 11
+#define R_CRIS_RELATIVE 12
+#define R_CRIS_16_GOT 13
+#define R_CRIS_32_GOT 14
+#define R_CRIS_16_GOTPLT 15
+#define R_CRIS_32_GOTPLT 16
+#define R_CRIS_32_GOTREL 17
+#define R_CRIS_32_PLT_GOTREL 18
+#define R_CRIS_32_PLT_PCREL 19
+
+#define R_CRIS_NUM 20
+
+
+/* AMD x86-64 relocations. */
+#define R_X86_64_NONE 0 /* No reloc */
+#define R_X86_64_64 1 /* Direct 64 bit */
+#define R_X86_64_PC32 2 /* PC relative 32 bit signed */
+#define R_X86_64_GOT32 3 /* 32 bit GOT entry */
+#define R_X86_64_PLT32 4 /* 32 bit PLT address */
+#define R_X86_64_COPY 5 /* Copy symbol at runtime */
+#define R_X86_64_GLOB_DAT 6 /* Create GOT entry */
+#define R_X86_64_JUMP_SLOT 7 /* Create PLT entry */
+#define R_X86_64_RELATIVE 8 /* Adjust by program base */
+#define R_X86_64_GOTPCREL 9 /* 32 bit signed PC relative
+ offset to GOT */
+#define R_X86_64_32 10 /* Direct 32 bit zero extended */
+#define R_X86_64_32S 11 /* Direct 32 bit sign extended */
+#define R_X86_64_16 12 /* Direct 16 bit zero extended */
+#define R_X86_64_PC16 13 /* 16 bit sign extended pc relative */
+#define R_X86_64_8 14 /* Direct 8 bit sign extended */
+#define R_X86_64_PC8 15 /* 8 bit sign extended pc relative */
+#define R_X86_64_DTPMOD64 16 /* ID of module containing symbol */
+#define R_X86_64_DTPOFF64 17 /* Offset in module's TLS block */
+#define R_X86_64_TPOFF64 18 /* Offset in initial TLS block */
+#define R_X86_64_TLSGD 19 /* 32 bit signed PC relative offset
+ to two GOT entries for GD symbol */
+#define R_X86_64_TLSLD 20 /* 32 bit signed PC relative offset
+ to two GOT entries for LD symbol */
+#define R_X86_64_DTPOFF32 21 /* Offset in TLS block */
+#define R_X86_64_GOTTPOFF 22 /* 32 bit signed PC relative offset
+ to GOT entry for IE symbol */
+#define R_X86_64_TPOFF32 23 /* Offset in initial TLS block */
+#define R_X86_64_PC64 24 /* PC relative 64 bit */
+#define R_X86_64_GOTOFF64 25 /* 64 bit offset to GOT */
+#define R_X86_64_GOTPC32 26 /* 32 bit signed pc relative
+ offset to GOT */
+#define R_X86_64_GOT64 27 /* 64-bit GOT entry offset */
+#define R_X86_64_GOTPCREL64 28 /* 64-bit PC relative offset
+ to GOT entry */
+#define R_X86_64_GOTPC64 29 /* 64-bit PC relative offset to GOT */
+#define R_X86_64_GOTPLT64 30 /* like GOT64, says PLT entry needed */
+#define R_X86_64_PLTOFF64 31 /* 64-bit GOT relative offset
+ to PLT entry */
+#define R_X86_64_SIZE32 32 /* Size of symbol plus 32-bit
addend */
+#define R_X86_64_SIZE64 33 /* Size of symbol plus 64-bit
addend */
+#define R_X86_64_GOTPC32_TLSDESC 34 /* GOT offset for TLS descriptor. */
+#define R_X86_64_TLSDESC_CALL 35 /* Marker for call through TLS
+ descriptor. */
+#define R_X86_64_TLSDESC 36 /* TLS descriptor. */
+#define R_X86_64_IRELATIVE 37 /* Adjust indirectly by program base */
+
+#define R_X86_64_NUM 38
+
+
+/* AM33 relocations. */
+#define R_MN10300_NONE 0 /* No reloc. */
+#define R_MN10300_32 1 /* Direct 32 bit. */
+#define R_MN10300_16 2 /* Direct 16 bit. */
+#define R_MN10300_8 3 /* Direct 8 bit. */
+#define R_MN10300_PCREL32 4 /* PC-relative 32-bit. */
+#define R_MN10300_PCREL16 5 /* PC-relative 16-bit signed. */
+#define R_MN10300_PCREL8 6 /* PC-relative 8-bit signed. */
+#define R_MN10300_GNU_VTINHERIT 7 /* Ancient C++ vtable
garbage... */
+#define R_MN10300_GNU_VTENTRY 8 /* ... collection annotation. */
+#define R_MN10300_24 9 /* Direct 24 bit. */
+#define R_MN10300_GOTPC32 10 /* 32-bit PCrel offset to GOT. */
+#define R_MN10300_GOTPC16 11 /* 16-bit PCrel offset to GOT. */
+#define R_MN10300_GOTOFF32 12 /* 32-bit offset from GOT. */
+#define R_MN10300_GOTOFF24 13 /* 24-bit offset from GOT. */
+#define R_MN10300_GOTOFF16 14 /* 16-bit offset from GOT. */
+#define R_MN10300_PLT32 15 /* 32-bit PCrel to PLT entry.
*/
+#define R_MN10300_PLT16 16 /* 16-bit PCrel to PLT entry.
*/
+#define R_MN10300_GOT32 17 /* 32-bit offset to GOT entry.
*/
+#define R_MN10300_GOT24 18 /* 24-bit offset to GOT entry.
*/
+#define R_MN10300_GOT16 19 /* 16-bit offset to GOT entry.
*/
+#define R_MN10300_COPY 20 /* Copy symbol at runtime. */
+#define R_MN10300_GLOB_DAT 21 /* Create GOT entry. */
+#define R_MN10300_JMP_SLOT 22 /* Create PLT entry. */
+#define R_MN10300_RELATIVE 23 /* Adjust by program base. */
+
+#define R_MN10300_NUM 24
+
+
+/* M32R relocs. */
+#define R_M32R_NONE 0 /* No reloc. */
+#define R_M32R_16 1 /* Direct 16 bit. */
+#define R_M32R_32 2 /* Direct 32 bit. */
+#define R_M32R_24 3 /* Direct 24 bit. */
+#define R_M32R_10_PCREL 4 /* PC relative 10 bit shifted.
*/
+#define R_M32R_18_PCREL 5 /* PC relative 18 bit shifted.
*/
+#define R_M32R_26_PCREL 6 /* PC relative 26 bit shifted.
*/
+#define R_M32R_HI16_ULO 7 /* High 16 bit with unsigned
low. */
+#define R_M32R_HI16_SLO 8 /* High 16 bit with signed low.
*/
+#define R_M32R_LO16 9 /* Low 16 bit. */
+#define R_M32R_SDA16 10 /* 16 bit offset in SDA. */
+#define R_M32R_GNU_VTINHERIT 11
+#define R_M32R_GNU_VTENTRY 12
+/* M32R relocs use SHT_RELA. */
+#define R_M32R_16_RELA 33 /* Direct 16 bit. */
+#define R_M32R_32_RELA 34 /* Direct 32 bit. */
+#define R_M32R_24_RELA 35 /* Direct 24 bit. */
+#define R_M32R_10_PCREL_RELA 36 /* PC relative 10 bit shifted. */
+#define R_M32R_18_PCREL_RELA 37 /* PC relative 18 bit shifted. */
+#define R_M32R_26_PCREL_RELA 38 /* PC relative 26 bit shifted. */
+#define R_M32R_HI16_ULO_RELA 39 /* High 16 bit with unsigned low */
+#define R_M32R_HI16_SLO_RELA 40 /* High 16 bit with signed low */
+#define R_M32R_LO16_RELA 41 /* Low 16 bit */
+#define R_M32R_SDA16_RELA 42 /* 16 bit offset in SDA */
+#define R_M32R_RELA_GNU_VTINHERIT 43
+#define R_M32R_RELA_GNU_VTENTRY 44
+#define R_M32R_REL32 45 /* PC relative 32 bit. */
+
+#define R_M32R_GOT24 48 /* 24 bit GOT entry */
+#define R_M32R_26_PLTREL 49 /* 26 bit PC relative to PLT shifted */
+#define R_M32R_COPY 50 /* Copy symbol at runtime */
+#define R_M32R_GLOB_DAT 51 /* Create GOT entry */
+#define R_M32R_JMP_SLOT 52 /* Create PLT entry */
+#define R_M32R_RELATIVE 53 /* Adjust by program base */
+#define R_M32R_GOTOFF 54 /* 24 bit offset to GOT */
+#define R_M32R_GOTPC24 55 /* 24 bit PC relative offset to GOT */
+#define R_M32R_GOT16_HI_ULO 56 /* High 16 bit GOT entry with unsigned
+ low */
+#define R_M32R_GOT16_HI_SLO 57 /* High 16 bit GOT entry with signed
+ low */
+#define R_M32R_GOT16_LO 58 /* Low 16 bit GOT entry */
+#define R_M32R_GOTPC_HI_ULO 59 /* High 16 bit PC relative offset to
+ GOT with unsigned low */
+#define R_M32R_GOTPC_HI_SLO 60 /* High 16 bit PC relative offset to
+ GOT with signed low */
+#define R_M32R_GOTPC_LO 61 /* Low 16 bit PC relative
offset to
+ GOT */
+#define R_M32R_GOTOFF_HI_ULO 62 /* High 16 bit offset to GOT
+ with unsigned low */
+#define R_M32R_GOTOFF_HI_SLO 63 /* High 16 bit offset to GOT
+ with signed low */
+#define R_M32R_GOTOFF_LO 64 /* Low 16 bit offset to GOT */
+#define R_M32R_NUM 256 /* Keep this the last entry. */
+
+
+#endif /* elf.h */
diff --git a/libguile/objcodes.c b/libguile/objcodes.c
index df10ea3..c293233 100644
--- a/libguile/objcodes.c
+++ b/libguile/objcodes.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001, 2009, 2010, 2011 Free Software Foundation, Inc.
+/* Copyright (C) 2001, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
@@ -37,202 +37,584 @@
#include <full-read.h>
#include "_scm.h"
+#include "elf.h"
#include "programs.h"
#include "objcodes.h"
-/* SCM_OBJCODE_COOKIE, defined in _scm.h, is a magic value prepended
- to objcode on disk but not in memory.
+/* Before, we used __BYTE_ORDER, but that is not defined on all
+ systems. So punt and use automake, PDP endianness be damned. */
+#define SCM_BYTE_ORDER_BE 4321
+#define SCM_BYTE_ORDER_LE 1234
- The length of the header must be a multiple of 8 bytes. */
-verify (((sizeof (SCM_OBJCODE_COOKIE) - 1) & 7) == 0);
+/* Byte order of the build machine. */
+#ifdef WORDS_BIGENDIAN
+#define SCM_BYTE_ORDER SCM_BYTE_ORDER_BE
+#else
+#define SCM_BYTE_ORDER SCM_BYTE_ORDER_LE
+#endif
-/* Endianness and word size of the compilation target. */
-static SCM target_endianness_var = SCM_BOOL_F;
-static SCM target_word_size_var = SCM_BOOL_F;
+/* This file contains the loader for Guile's on-disk format: ELF with
+ some custom tags in the dynamic segment. */
+
+#if SIZEOF_SCM_T_BITS == 4
+#define Elf_Half Elf32_Half
+#define Elf_Word Elf32_Word
+#define Elf_Ehdr Elf32_Ehdr
+#define ELFCLASS ELFCLASS32
+#define Elf_Phdr Elf32_Phdr
+#define Elf_Dyn Elf32_Dyn
+#elif SIZEOF_SCM_T_BITS == 8
+#define Elf_Half Elf64_Half
+#define Elf_Word Elf64_Word
+#define Elf_Ehdr Elf64_Ehdr
+#define ELFCLASS ELFCLASS64
+#define Elf_Phdr Elf64_Phdr
+#define Elf_Dyn Elf64_Dyn
+#else
+#error
+#endif
-
-/*
- * Objcode type
- */
+#define DT_LOGUILE 0x37146000 /* Start of Guile-specific */
+#define DT_GUILE_GC_ROOT 0x37146000 /* Offset of GC roots */
+#define DT_GUILE_GC_ROOT_SZ 0x37146001 /* Size in machine words of GC
+ roots */
+#define DT_GUILE_ENTRY 0x37146002 /* Address of entry thunk */
+#define DT_GUILE_RTL_VERSION 0x37146003 /* Bytecode version */
+#define DT_HIGUILE 0x37146fff /* End of Guile-specific */
-/* Endianness of the build machine. */
#ifdef WORDS_BIGENDIAN
-# define NATIVE_ENDIANNESS 'B'
+#define ELFDATA ELFDATA2MSB
#else
-# define NATIVE_ENDIANNESS 'L'
+#define ELFDATA ELFDATA2LSB
#endif
-/* Return the endianness of the compilation target. */
-static char
-target_endianness (void)
+enum bytecode_kind
+ {
+ BYTECODE_KIND_NONE,
+ BYTECODE_KIND_GUILE_2_0
+ };
+
+static SCM
+pointer_to_procedure (enum bytecode_kind bytecode_kind, char *ptr)
{
- if (scm_is_true (target_endianness_var))
- return scm_is_eq (scm_call_0 (scm_variable_ref (target_endianness_var)),
- scm_endianness_big) ? 'B' : 'L';
- else
- return NATIVE_ENDIANNESS;
+ switch (bytecode_kind)
+ {
+ case BYTECODE_KIND_GUILE_2_0:
+ {
+ SCM objcode;
+ scm_t_bits tag = SCM_MAKE_OBJCODE_TAG (SCM_OBJCODE_TYPE_MMAP, 0);
+
+ objcode = scm_double_cell (tag, (scm_t_bits) ptr, SCM_BOOL_F_BITS, 0);
+ return scm_make_program (objcode, SCM_BOOL_F, SCM_UNDEFINED);
+ }
+ case BYTECODE_KIND_NONE:
+ default:
+ abort ();
+ }
}
-/* Return the word size in bytes of the compilation target. */
-static size_t
-target_word_size (void)
+static const char*
+check_elf_header (const Elf_Ehdr *header)
{
- if (scm_is_true (target_word_size_var))
- return scm_to_size_t (scm_call_0
- (scm_variable_ref (target_word_size_var)));
- else
- return sizeof (void *);
+ if (!(header->e_ident[EI_MAG0] == ELFMAG0
+ && header->e_ident[EI_MAG1] == ELFMAG1
+ && header->e_ident[EI_MAG2] == ELFMAG2
+ && header->e_ident[EI_MAG3] == ELFMAG3))
+ return "not an ELF file";
+
+ if (header->e_ident[EI_CLASS] != ELFCLASS)
+ return "ELF file does not have native word size";
+
+ if (header->e_ident[EI_DATA] != ELFDATA)
+ return "ELF file does not have native byte order";
+
+ if (header->e_ident[EI_VERSION] != EV_CURRENT)
+ return "bad ELF version";
+
+ if (header->e_ident[EI_OSABI] != ELFOSABI_STANDALONE)
+ return "unexpected OS ABI";
+
+ if (header->e_ident[EI_ABIVERSION] != 0)
+ return "unexpected ABI version";
+
+ if (header->e_type != ET_DYN)
+ return "unexpected ELF type";
+
+ if (header->e_machine != EM_NONE)
+ return "unexpected machine";
+
+ if (header->e_version != EV_CURRENT)
+ return "unexpected ELF version";
+
+ if (header->e_ehsize != sizeof *header)
+ return "unexpected header size";
+
+ if (header->e_phentsize != sizeof (Elf_Phdr))
+ return "unexpected program header size";
+
+ return NULL;
}
-/* Convert X, which is in byte order ENDIANNESS, to its native
- representation. */
-static inline uint32_t
-to_native_order (uint32_t x, char endianness)
+static int
+segment_flags_to_prot (Elf_Word flags)
{
- if (endianness == NATIVE_ENDIANNESS)
- return x;
- else
- return bswap_32 (x);
+ int prot = 0;
+
+ if (flags & PF_X)
+ prot |= PROT_EXEC;
+ if (flags & PF_W)
+ prot |= PROT_WRITE;
+ if (flags & PF_R)
+ prot |= PROT_READ;
+
+ return prot;
}
-static void
-verify_cookie (char *cookie, struct stat *st, int map_fd, void *map_addr)
-#define FUNC_NAME "make_objcode_from_file"
+static int
+map_segments (int fd, char **base,
+ const Elf_Phdr *from, const Elf_Phdr *to)
{
- /* The cookie ends with a version of the form M.N, where M is the
- major version and N is the minor version. For this Guile to be
- able to load an objcode, M must be SCM_OBJCODE_MAJOR_VERSION, and N
- must be less than or equal to SCM_OBJCODE_MINOR_VERSION. Since N
- is the last character, we do a strict comparison on all but the
- last, then a <= on the last one. */
- if (memcmp (cookie, SCM_OBJCODE_COOKIE, strlen (SCM_OBJCODE_COOKIE) - 1))
+ int prot = segment_flags_to_prot (from->p_flags);
+ char *ret;
+
+ ret = mmap (*base + from->p_vaddr,
+ to->p_offset + to->p_filesz - from->p_offset,
+ prot, MAP_PRIVATE, fd, from->p_offset);
+
+ if (ret == (char *) -1)
+ return 1;
+
+ if (!*base)
+ *base = ret;
+
+ return 0;
+}
+
+static int
+mprotect_segments (char *base, const Elf_Phdr *from, const Elf_Phdr *to)
+{
+ return mprotect (base + from->p_vaddr,
+ to->p_vaddr + to->p_memsz - from->p_vaddr,
+ segment_flags_to_prot (from->p_flags));
+}
+
+static char*
+process_dynamic_segment (char *base, Elf_Phdr *dyn_phdr,
+ SCM *init_out, SCM *entry_out)
+{
+ char *dyn_addr = base + dyn_phdr->p_vaddr;
+ Elf_Dyn *dyn = (Elf_Dyn *) dyn_addr;
+ size_t i, dyn_size = dyn_phdr->p_memsz / sizeof (Elf_Dyn);
+ char *init = 0, *gc_root = 0, *entry = 0;
+ scm_t_ptrdiff gc_root_size = 0;
+ enum bytecode_kind bytecode_kind = BYTECODE_KIND_NONE;
+
+ for (i = 0; i < dyn_size; i++)
{
- SCM args = scm_list_1 (scm_from_latin1_stringn
- (cookie, strlen (SCM_OBJCODE_COOKIE)));
- if (map_fd >= 0)
+ if (dyn[i].d_tag == DT_NULL)
+ break;
+
+ switch (dyn[i].d_tag)
{
- (void) close (map_fd);
-#ifdef HAVE_SYS_MMAN_H
- (void) munmap (map_addr, st->st_size);
-#endif
+ case DT_INIT:
+ if (init)
+ return "duplicate DT_INIT";
+ init = base + dyn[i].d_un.d_val;
+ break;
+ case DT_GUILE_GC_ROOT:
+ if (gc_root)
+ return "duplicate DT_GUILE_GC_ROOT";
+ gc_root = base + dyn[i].d_un.d_val;
+ break;
+ case DT_GUILE_GC_ROOT_SZ:
+ if (gc_root_size)
+ return "duplicate DT_GUILE_GC_ROOT_SZ";
+ gc_root_size = dyn[i].d_un.d_val;
+ break;
+ case DT_GUILE_ENTRY:
+ if (entry)
+ return "duplicate DT_GUILE_ENTRY";
+ entry = base + dyn[i].d_un.d_val;
+ break;
+ case DT_GUILE_RTL_VERSION:
+ if (bytecode_kind != BYTECODE_KIND_NONE)
+ return "duplicate DT_GUILE_RTL_VERSION";
+ {
+ scm_t_uint16 major = dyn[i].d_un.d_val >> 16;
+ scm_t_uint16 minor = dyn[i].d_un.d_val & 0xffff;
+ if (major != 0x0200)
+ return "incompatible bytecode kind";
+ if (minor > SCM_OBJCODE_MINOR_VERSION)
+ return "incompatible bytecode version";
+ bytecode_kind = BYTECODE_KIND_GUILE_2_0;
+ break;
+ }
}
- scm_misc_error (FUNC_NAME, "bad header on object file: ~s", args);
}
- {
- char minor_version = cookie[strlen (SCM_OBJCODE_COOKIE) - 1];
+ if (bytecode_kind != BYTECODE_KIND_GUILE_2_0)
+ return "missing DT_GUILE_RTL_VERSION";
+ if (init)
+ return "unexpected DT_INIT";
+ if ((scm_t_uintptr) entry % 8)
+ return "unaligned DT_GUILE_ENTRY";
+ if (!entry)
+ return "missing DT_GUILE_ENTRY";
+
+ if (gc_root)
+ GC_add_roots (gc_root, gc_root + gc_root_size);
+
+ *init_out = SCM_BOOL_F;
+ *entry_out = pointer_to_procedure (bytecode_kind, entry);
+ return NULL;
+}
+
+#define ABORT(msg) do { err_msg = msg; goto cleanup; } while (0)
- if (minor_version > SCM_OBJCODE_MINOR_VERSION_STRING[0])
- {
- if (map_fd >= 0)
- {
- (void) close (map_fd);
#ifdef HAVE_SYS_MMAN_H
- (void) munmap (map_addr, st->st_size);
-#endif
- }
+static SCM
+load_thunk_from_fd_using_mmap (int fd)
+#define FUNC_NAME "load-thunk-from-disk"
+{
+ Elf_Ehdr header;
+ Elf_Phdr *ph;
+ const char *err_msg = 0;
+ char *base = 0;
+ size_t n;
+ int i;
+ int start_segment = -1;
+ int prev_segment = -1;
+ int dynamic_segment = -1;
+ SCM init = SCM_BOOL_F, entry = SCM_BOOL_F;
+
+ if (full_read (fd, &header, sizeof header) != sizeof header)
+ ABORT ("object file too small");
+
+ if ((err_msg = check_elf_header (&header)))
+ goto cleanup;
+
+ if (lseek (fd, header.e_phoff, SEEK_SET) == (off_t) -1)
+ goto cleanup;
+
+ n = header.e_phnum;
+ ph = scm_gc_malloc_pointerless (n * sizeof (Elf_Phdr), "segment headers");
+
+ if (full_read (fd, ph, n * sizeof (Elf_Phdr)) != n * sizeof (Elf_Phdr))
+ ABORT ("failed to read program headers");
+
+ for (i = 0; i < n; i++)
+ {
+ if (!ph[i].p_memsz)
+ continue;
- scm_misc_error (FUNC_NAME, "objcode minor version too new (~a > ~a)",
- scm_list_2 (scm_from_latin1_stringn (&minor_version,
1),
- scm_from_latin1_string
- (SCM_OBJCODE_MINOR_VERSION_STRING)));
- }
+ if (ph[i].p_filesz != ph[i].p_memsz)
+ ABORT ("expected p_filesz == p_memsz");
+
+ if (!ph[i].p_flags)
+ ABORT ("expected nonzero segment flags");
+
+ if (ph[i].p_type == PT_DYNAMIC)
+ {
+ if (dynamic_segment >= 0)
+ ABORT ("expected only one PT_DYNAMIC segment");
+ dynamic_segment = i;
+ }
+
+ if (start_segment < 0)
+ {
+ if (!base && ph[i].p_vaddr)
+ ABORT ("first loadable vaddr is not 0");
+
+ start_segment = prev_segment = i;
+ continue;
+ }
+
+ if (ph[i].p_flags == ph[start_segment].p_flags)
+ {
+ if (ph[i].p_vaddr - ph[prev_segment].p_vaddr
+ != ph[i].p_offset - ph[prev_segment].p_offset)
+ ABORT ("coalesced segments not contiguous");
+
+ prev_segment = i;
+ continue;
+ }
+
+ /* Otherwise we have a new kind of segment. Map previous
+ segments. */
+ if (map_segments (fd, &base, &ph[start_segment], &ph[prev_segment]))
+ goto cleanup;
+
+ /* Open a new set of segments. */
+ start_segment = prev_segment = i;
+ }
+
+ /* Map last segments. */
+ if (start_segment < 0)
+ ABORT ("no loadable segments");
+
+ if (map_segments (fd, &base, &ph[start_segment], &ph[prev_segment]))
+ goto cleanup;
+
+ if (dynamic_segment < 0)
+ ABORT ("no PT_DYNAMIC segment");
+
+ if ((err_msg = process_dynamic_segment (base, &ph[dynamic_segment],
+ &init, &entry)))
+ goto cleanup;
+
+ if (scm_is_true (init))
+ scm_call_0 (init);
+
+ /* Finally! Return the thunk. */
+ return entry;
+
+ /* FIXME: munmap on error? */
+ cleanup:
+ {
+ int errno_save = errno;
+ (void) close (fd);
+ errno = errno_save;
+ if (errno)
+ SCM_SYSERROR;
+ scm_misc_error (FUNC_NAME, err_msg ? err_msg : "error loading ELF file",
+ SCM_EOL);
}
}
#undef FUNC_NAME
-
-/* The words in an objcode SCM object are as follows:
- - scm_tc7_objcode | type | flags
- - the struct scm_objcode C object
- - the parent of this objcode: either another objcode, a bytevector,
- or, in the case of mmap types, #f
- - "native code" -- not currently used.
- */
+#endif /* HAVE_SYS_MMAN_H */
static SCM
-make_objcode_from_file (int fd)
-#define FUNC_NAME "make_objcode_from_file"
+load_thunk_from_memory (char *data, size_t len)
+#define FUNC_NAME "load-thunk-from-memory"
{
- int ret;
- /* The SCM_OBJCODE_COOKIE is a string literal, and thus has an extra
- trailing NUL, hence the - 1. */
- char cookie[sizeof (SCM_OBJCODE_COOKIE) - 1];
- struct stat st;
+ Elf_Ehdr header;
+ Elf_Phdr *ph;
+ const char *err_msg = 0;
+ char *base = 0;
+ size_t n, memsz = 0, alignment = 8;
+ int i;
+ int first_loadable = -1;
+ int start_segment = -1;
+ int prev_segment = -1;
+ int dynamic_segment = -1;
+ SCM init = SCM_BOOL_F, entry = SCM_BOOL_F;
+
+ if (len < sizeof header)
+ ABORT ("object file too small");
+
+ memcpy (&header, data, sizeof header);
+
+ if ((err_msg = check_elf_header (&header)))
+ goto cleanup;
+
+ n = header.e_phnum;
+ if (len < header.e_phoff + n * sizeof (Elf_Phdr))
+ goto cleanup;
+ ph = (Elf_Phdr*) (data + header.e_phoff);
+
+ for (i = 0; i < n; i++)
+ {
+ if (!ph[i].p_memsz)
+ continue;
- ret = fstat (fd, &st);
- if (ret < 0)
- SCM_SYSERROR;
+ if (ph[i].p_filesz != ph[i].p_memsz)
+ ABORT ("expected p_filesz == p_memsz");
- if (st.st_size <= sizeof (struct scm_objcode) + sizeof cookie)
- scm_misc_error (FUNC_NAME, "object file too small (~a bytes)",
- scm_list_1 (SCM_I_MAKINUM (st.st_size)));
+ if (!ph[i].p_flags)
+ ABORT ("expected nonzero segment flags");
-#ifdef HAVE_SYS_MMAN_H
- {
- char *addr;
- struct scm_objcode *data;
+ if (ph[i].p_align < alignment)
+ {
+ if (ph[i].p_align % alignment)
+ ABORT ("expected new alignment to be multiple of old");
+ alignment = ph[i].p_align;
+ }
- addr = mmap (0, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
+ if (ph[i].p_type == PT_DYNAMIC)
+ {
+ if (dynamic_segment >= 0)
+ ABORT ("expected only one PT_DYNAMIC segment");
+ dynamic_segment = i;
+ }
- if (addr == MAP_FAILED)
- {
- int errno_save = errno;
- (void) close (fd);
- errno = errno_save;
- SCM_SYSERROR;
- }
- else
- {
- memcpy (cookie, addr, sizeof cookie);
- data = (struct scm_objcode *) (addr + sizeof cookie);
- }
+ if (first_loadable < 0)
+ {
+ if (ph[i].p_vaddr)
+ ABORT ("first loadable vaddr is not 0");
- verify_cookie (cookie, &st, fd, addr);
+ first_loadable = i;
+ }
+ if (ph[i].p_vaddr < memsz)
+ ABORT ("overlapping segments");
- if (data->len + data->metalen
- != (st.st_size - sizeof (*data) - sizeof cookie))
- {
- size_t total_len = sizeof (*data) + data->len + data->metalen;
+ if (ph[i].p_offset + ph[i].p_filesz > len)
+ ABORT ("segment beyond end of byte array");
+
+ memsz = ph[i].p_vaddr + ph[i].p_memsz;
+ }
- (void) close (fd);
- (void) munmap (addr, st.st_size);
+ if (first_loadable < 0)
+ ABORT ("no loadable segments");
- scm_misc_error (FUNC_NAME, "bad length header (~a, ~a)",
- scm_list_2 (scm_from_size_t (st.st_size),
- scm_from_size_t (total_len)));
- }
+ if (dynamic_segment < 0)
+ ABORT ("no PT_DYNAMIC segment");
- (void) close (fd);
- return scm_permanent_object
- (scm_double_cell (SCM_MAKE_OBJCODE_TAG (SCM_OBJCODE_TYPE_MMAP, 0),
- (scm_t_bits)(addr + strlen (SCM_OBJCODE_COOKIE)),
- SCM_BOOL_F_BITS, 0));
- }
-#else
+ /* Now copy segments. */
+
+ /* We leak this memory, as we leak the memory mappings in
+ load_thunk_from_fd_using_mmap.
+
+ If the file is has an alignment of 8, use the standard malloc.
+ (FIXME to ensure alignment on non-GNU malloc.) Otherwise use
+ posix_memalign. We only use mprotect if the aligment is 4096. */
+ if (alignment == 8)
+ {
+ base = malloc (memsz);
+ if (!base)
+ goto cleanup;
+ }
+ else
+ if ((errno = posix_memalign ((void **) &base, alignment, memsz)))
+ goto cleanup;
+
+ memset (base, 0, memsz);
+
+ for (i = 0; i < n; i++)
+ {
+ if (!ph[i].p_memsz)
+ continue;
+
+ memcpy (base + ph[i].p_vaddr,
+ data + ph[i].p_offset,
+ ph[i].p_memsz);
+
+ if (start_segment < 0)
+ {
+ start_segment = prev_segment = i;
+ continue;
+ }
+
+ if (ph[i].p_flags == ph[start_segment].p_flags)
+ {
+ prev_segment = i;
+ continue;
+ }
+
+ if (alignment == 4096)
+ if (mprotect_segments (base, &ph[start_segment], &ph[prev_segment]))
+ goto cleanup;
+
+ /* Open a new set of segments. */
+ start_segment = prev_segment = i;
+ }
+
+ /* Mprotect the last segments. */
+ if (alignment == 4096)
+ if (mprotect_segments (base, &ph[start_segment], &ph[prev_segment]))
+ goto cleanup;
+
+ if ((err_msg = process_dynamic_segment (base, &ph[dynamic_segment],
+ &init, &entry)))
+ goto cleanup;
+
+ if (scm_is_true (init))
+ scm_call_0 (init);
+
+ /* Finally! Return the thunk. */
+ return entry;
+
+ cleanup:
{
- SCM bv = scm_c_make_bytevector (st.st_size - sizeof cookie);
+ if (errno)
+ SCM_SYSERROR;
+ scm_misc_error (FUNC_NAME, err_msg ? err_msg : "error loading ELF file",
+ SCM_EOL);
+ }
+}
+#undef FUNC_NAME
- if (full_read (fd, cookie, sizeof cookie) != sizeof cookie
- || full_read (fd, SCM_BYTEVECTOR_CONTENTS (bv),
- SCM_BYTEVECTOR_LENGTH (bv)) != SCM_BYTEVECTOR_LENGTH
(bv))
- {
- int errno_save = errno;
- (void) close (fd);
- errno = errno_save;
+#ifndef HAVE_SYS_MMAN_H
+static SCM
+load_thunk_from_fd_using_read (int fd)
+#define FUNC_NAME "load-thunk-from-disk"
+{
+ char *data;
+ size_t len;
+ struct stat st;
+ int ret;
+
+ ret = fstat (fd, &st);
+ if (ret < 0)
+ SCM_SYSERROR;
+ len = st.st_size;
+ data = scm_gc_malloc_pointerless (len, "objcode");
+ if (full_read (fd, data, len) != len)
+ {
+ int errno_save = errno;
+ (void) close (fd);
+ errno = errno_save;
+ if (errno)
SCM_SYSERROR;
- }
+ scm_misc_error (FUNC_NAME, "short read while loading objcode",
+ SCM_EOL);
+ }
+ (void) close (fd);
+ return load_thunk_from_memory (data, len);
+}
+#undef FUNC_NAME
+#endif /* ! HAVE_SYS_MMAN_H */
- (void) close (fd);
+SCM_DEFINE (scm_load_thunk_from_file, "load-thunk-from-file", 1, 0, 0,
+ (SCM filename),
+ "")
+#define FUNC_NAME s_scm_load_thunk_from_file
+{
+ char *c_filename;
+ int fd;
- verify_cookie (cookie, &st, -1, NULL);
+ SCM_VALIDATE_STRING (1, filename);
- return scm_bytecode_to_native_objcode (bv);
- }
+ c_filename = scm_to_locale_string (filename);
+ fd = open (c_filename, O_RDONLY | O_CLOEXEC);
+ free (c_filename);
+ if (fd < 0) SCM_SYSERROR;
+
+#ifdef HAVE_SYS_MMAN_H
+ return load_thunk_from_fd_using_mmap (fd);
+#else
+ return load_thunk_from_fd_using_read (fd);
#endif
}
#undef FUNC_NAME
+SCM_DEFINE (scm_load_thunk_from_memory, "load-thunk-from-memory", 1, 0, 0,
+ (SCM bv),
+ "")
+#define FUNC_NAME s_scm_load_thunk_from_memory
+{
+ SCM_VALIDATE_BYTEVECTOR (1, bv);
+
+ return load_thunk_from_memory ((char *) SCM_BYTEVECTOR_CONTENTS (bv),
+ SCM_BYTEVECTOR_LENGTH (bv));
+}
+#undef FUNC_NAME
+
+
+/*
+ * Objcode type
+ */
+
+/* Convert X, which is in byte order BYTE_ORDER, to its native
+ representation. */
+static inline uint32_t
+to_native_order (uint32_t x, int byte_order)
+{
+ if (byte_order == SCM_BYTE_ORDER)
+ return x;
+ else
+ return bswap_32 (x);
+}
SCM
scm_c_make_objcode_slice (SCM parent, const scm_t_uint8 *ptr)
@@ -298,9 +680,10 @@ SCM_DEFINE (scm_objcode_meta, "objcode-meta", 1, 0, 0,
}
#undef FUNC_NAME
-/* Turn BYTECODE into objcode encoded for ENDIANNESS and WORD_SIZE. */
+/* Wrap BYTECODE in objcode, interpreting its lengths according to
+ BYTE_ORDER. */
static SCM
-bytecode_to_objcode (SCM bytecode, char endianness, size_t word_size)
+bytecode_to_objcode (SCM bytecode, int byte_order)
#define FUNC_NAME "bytecode->objcode"
{
size_t size, len, metalen;
@@ -316,8 +699,8 @@ bytecode_to_objcode (SCM bytecode, char endianness, size_t
word_size)
SCM_ASSERT_RANGE (0, bytecode, size >= sizeof(struct scm_objcode));
data = (struct scm_objcode*)c_bytecode;
- len = to_native_order (data->len, endianness);
- metalen = to_native_order (data->metalen, endianness);
+ len = to_native_order (data->len, byte_order);
+ metalen = to_native_order (data->metalen, byte_order);
if (len + metalen != (size - sizeof (*data)))
scm_misc_error (FUNC_NAME, "bad bytevector size (~a != ~a)",
@@ -331,100 +714,54 @@ bytecode_to_objcode (SCM bytecode, char endianness,
size_t word_size)
}
#undef FUNC_NAME
-SCM_DEFINE (scm_bytecode_to_objcode, "bytecode->objcode", 1, 0, 0,
- (SCM bytecode),
+SCM_DEFINE (scm_bytecode_to_objcode, "bytecode->objcode", 1, 1, 0,
+ (SCM bytecode, SCM endianness),
"")
#define FUNC_NAME s_scm_bytecode_to_objcode
{
- /* Assume we're called from Scheme, which known that to do with
- `target-type'. */
- return bytecode_to_objcode (bytecode, target_endianness (),
- target_word_size ());
-}
-#undef FUNC_NAME
-
-/* Like `bytecode->objcode', but ignore the `target-type' fluid. This
- is useful for native compilation that happens lazily---e.g., direct
- calls to this function from libguile itself. */
-SCM
-scm_bytecode_to_native_objcode (SCM bytecode)
-{
- return bytecode_to_objcode (bytecode, NATIVE_ENDIANNESS, sizeof (void *));
-}
-
-SCM_DEFINE (scm_load_objcode, "load-objcode", 1, 0, 0,
- (SCM file),
- "")
-#define FUNC_NAME s_scm_load_objcode
-{
- int fd;
- char *c_file;
-
- SCM_VALIDATE_STRING (1, file);
-
- c_file = scm_to_locale_string (file);
- fd = open (c_file, O_RDONLY | O_CLOEXEC);
- free (c_file);
- if (fd < 0) SCM_SYSERROR;
+ int byte_order;
+
+ if (SCM_UNBNDP (endianness))
+ byte_order = SCM_BYTE_ORDER;
+ else if (scm_is_eq (endianness, scm_endianness_big))
+ byte_order = SCM_BYTE_ORDER_BE;
+ else if (scm_is_eq (endianness, scm_endianness_little))
+ byte_order = SCM_BYTE_ORDER_LE;
+ else
+ scm_wrong_type_arg (FUNC_NAME, 2, endianness);
- return make_objcode_from_file (fd);
+ return bytecode_to_objcode (bytecode, byte_order);
}
#undef FUNC_NAME
-SCM_DEFINE (scm_objcode_to_bytecode, "objcode->bytecode", 1, 0, 0,
- (SCM objcode),
+SCM_DEFINE (scm_objcode_to_bytecode, "objcode->bytecode", 1, 1, 0,
+ (SCM objcode, SCM endianness),
"")
#define FUNC_NAME s_scm_objcode_to_bytecode
{
- scm_t_uint32 len;
+ scm_t_uint32 len, meta_len, total_len;
+ int byte_order;
SCM_VALIDATE_OBJCODE (1, objcode);
- len = sizeof (struct scm_objcode) + SCM_OBJCODE_TOTAL_LEN (objcode);
-
- return scm_c_take_gc_bytevector ((scm_t_int8*)SCM_OBJCODE_DATA (objcode),
- len, objcode);
-}
-#undef FUNC_NAME
-
-SCM_DEFINE (scm_write_objcode, "write-objcode", 2, 0, 0,
- (SCM objcode, SCM port),
- "")
-#define FUNC_NAME s_scm_write_objcode
-{
- char cookie[sizeof (SCM_OBJCODE_COOKIE) - 1];
- char endianness, word_size;
- size_t total_size;
-
- SCM_VALIDATE_OBJCODE (1, objcode);
- SCM_VALIDATE_OUTPUT_PORT (2, port);
- endianness = target_endianness ();
- switch (target_word_size ())
- {
- case 4:
- word_size = '4';
- break;
- case 8:
- word_size = '8';
- break;
- default:
- abort ();
- }
-
- memcpy (cookie, SCM_OBJCODE_COOKIE, strlen (SCM_OBJCODE_COOKIE));
- cookie[SCM_OBJCODE_ENDIANNESS_OFFSET] = endianness;
- cookie[SCM_OBJCODE_WORD_SIZE_OFFSET] = word_size;
+ if (SCM_UNBNDP (endianness))
+ byte_order = SCM_BYTE_ORDER;
+ else if (scm_is_eq (endianness, scm_endianness_big))
+ byte_order = SCM_BYTE_ORDER_BE;
+ else if (scm_is_eq (endianness, scm_endianness_little))
+ byte_order = SCM_BYTE_ORDER_LE;
+ else
+ scm_wrong_type_arg (FUNC_NAME, 2, endianness);
- total_size =
- to_native_order (SCM_OBJCODE_LEN (objcode), target_endianness ())
- + to_native_order (SCM_OBJCODE_META_LEN (objcode), target_endianness ());
+ len = SCM_OBJCODE_LEN (objcode);
+ meta_len = SCM_OBJCODE_META_LEN (objcode);
- scm_c_write_unlocked (port, cookie, strlen (SCM_OBJCODE_COOKIE));
- scm_c_write_unlocked (port, SCM_OBJCODE_DATA (objcode),
- sizeof (struct scm_objcode)
- + total_size);
+ total_len = sizeof (struct scm_objcode);
+ total_len += to_native_order (len, byte_order);
+ total_len += to_native_order (meta_len, byte_order);
- return SCM_UNSPECIFIED;
+ return scm_c_take_gc_bytevector ((scm_t_int8*)SCM_OBJCODE_DATA (objcode),
+ total_len, objcode);
}
#undef FUNC_NAME
@@ -445,14 +782,6 @@ scm_bootstrap_objcodes (void)
(scm_t_extension_init_func)scm_init_objcodes,
NULL);
}
-/* Before, we used __BYTE_ORDER, but that is not defined on all
- systems. So punt and use automake, PDP endianness be damned. */
-#ifdef WORDS_BIGENDIAN
-#define SCM_BYTE_ORDER 4321
-#else
-#define SCM_BYTE_ORDER 1234
-#endif
-
void
scm_init_objcodes (void)
{
@@ -462,11 +791,6 @@ scm_init_objcodes (void)
scm_c_define ("word-size", scm_from_size_t (sizeof(SCM)));
scm_c_define ("byte-order", scm_from_uint16 (SCM_BYTE_ORDER));
-
- target_endianness_var = scm_c_public_variable ("system base target",
- "target-endianness");
- target_word_size_var = scm_c_public_variable ("system base target",
- "target-word-size");
}
/*
diff --git a/libguile/objcodes.h b/libguile/objcodes.h
index 0c3865c..6ac333f 100644
--- a/libguile/objcodes.h
+++ b/libguile/objcodes.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001, 2009, 2010, 2011 Free Software Foundation, Inc.
+/* Copyright (C) 2001, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
@@ -60,14 +60,14 @@ struct scm_objcode
#define SCM_OBJCODE_NATIVE_CODE(x) (SCM_CELL_WORD_3 (x))
#define SCM_SET_OBJCODE_NATIVE_CODE(x, code) (SCM_SET_CELL_WORD_3 (x, code))
+SCM_API SCM scm_load_thunk_from_file (SCM filename);
+SCM_API SCM scm_load_thunk_from_memory (SCM bv);
+
SCM_API SCM scm_c_make_objcode_slice (SCM parent, const scm_t_uint8 *ptr);
-SCM_API SCM scm_load_objcode (SCM file);
SCM_API SCM scm_objcode_p (SCM obj);
SCM_API SCM scm_objcode_meta (SCM objcode);
-SCM_API SCM scm_bytecode_to_objcode (SCM bytecode);
-SCM_INTERNAL SCM scm_bytecode_to_native_objcode (SCM bytecode);
-SCM_API SCM scm_objcode_to_bytecode (SCM objcode);
-SCM_API SCM scm_write_objcode (SCM objcode, SCM port);
+SCM_API SCM scm_bytecode_to_objcode (SCM bytecode, SCM endianness);
+SCM_API SCM scm_objcode_to_bytecode (SCM objcode, SCM endianness);
SCM_INTERNAL void scm_i_objcode_print (SCM objcode, SCM port,
scm_print_state *pstate);
diff --git a/libguile/vm.c b/libguile/vm.c
index 0d9aa40..c264470 100644
--- a/libguile/vm.c
+++ b/libguile/vm.c
@@ -1046,9 +1046,8 @@ SCM_DEFINE (scm_call_with_vm, "call-with-vm", 2, 0, 1,
SCM scm_load_compiled_with_vm (SCM file)
{
- SCM program = scm_make_program (scm_load_objcode (file),
- SCM_BOOL_F, SCM_BOOL_F);
-
+ SCM program = scm_load_thunk_from_file (file);
+
return scm_c_vm_run (scm_the_vm (), program, NULL, 0);
}
@@ -1072,7 +1071,7 @@ make_boot_program (void)
bp->metalen = 0;
u8vec = scm_c_take_gc_bytevector ((scm_t_int8*)bp, bp_size, SCM_BOOL_F);
- ret = scm_make_program (scm_bytecode_to_native_objcode (u8vec),
+ ret = scm_make_program (scm_bytecode_to_objcode (u8vec, SCM_UNDEFINED),
SCM_BOOL_F, SCM_BOOL_F);
SCM_SET_CELL_WORD_0 (ret, (SCM_CELL_WORD_0 (ret) | SCM_F_PROGRAM_IS_BOOT));
diff --git a/module/Makefile.am b/module/Makefile.am
index fa811fd..e300ee2 100644
--- a/module/Makefile.am
+++ b/module/Makefile.am
@@ -123,7 +123,8 @@ BYTECODE_LANG_SOURCES = \
language/bytecode/spec.scm
OBJCODE_LANG_SOURCES = \
- language/objcode/spec.scm
+ language/objcode/spec.scm \
+ language/objcode/elf.scm
VALUE_LANG_SOURCES = \
language/value/spec.scm
@@ -327,6 +328,7 @@ OOP_SOURCES = \
SYSTEM_SOURCES = \
system/vm/inspect.scm \
system/vm/coverage.scm \
+ system/vm/elf.scm \
system/vm/frame.scm \
system/vm/instruction.scm \
system/vm/objcode.scm \
diff --git a/module/language/bytecode/spec.scm
b/module/language/bytecode/spec.scm
index 57ccd71..c2a6d46 100644
--- a/module/language/bytecode/spec.scm
+++ b/module/language/bytecode/spec.scm
@@ -1,6 +1,6 @@
;;; Guile Lowlevel Intermediate Language
-;; Copyright (C) 2001, 2009, 2010 Free Software Foundation, Inc.
+;; Copyright (C) 2001, 2009, 2010, 2012 Free Software Foundation, Inc.
;;;; This library is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public
@@ -20,14 +20,15 @@
(define-module (language bytecode spec)
#:use-module (system base language)
+ #:use-module (system base target)
#:use-module (system vm objcode)
#:export (bytecode))
(define (compile-objcode x e opts)
- (values (bytecode->objcode x) e e))
+ (values (bytecode->objcode x (target-endianness)) e e))
(define (decompile-objcode x e opts)
- (values (objcode->bytecode x) e))
+ (values (objcode->bytecode x (target-endianness)) e))
(define-language bytecode
#:title "Guile Bytecode Vectors"
diff --git a/module/language/objcode/elf.scm b/module/language/objcode/elf.scm
new file mode 100644
index 0000000..9654c08
--- /dev/null
+++ b/module/language/objcode/elf.scm
@@ -0,0 +1,94 @@
+;;; Embedding bytecode in ELF
+
+;; Copyright (C) 2012 Free Software Foundation, Inc.
+
+;;;; This library is free software; you can redistribute it and/or
+;;;; modify it under the terms of the GNU Lesser General Public
+;;;; License as published by the Free Software Foundation; either
+;;;; version 3 of the License, or (at your option) any later version.
+;;;;
+;;;; This library is distributed in the hope that it will be useful,
+;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+;;;; Lesser General Public License for more details.
+;;;;
+;;;; You should have received a copy of the GNU Lesser General Public
+;;;; License along with this library; if not, write to the Free Software
+;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
USA
+
+;;; Code:
+
+;; The eval-when is because (language objcode elf) will not be loaded
+;; yet when we go to compile it, but later passes of the
+;; compiler need it. So we have to be sure that the module is present
+;; at compile time, with all of its definitions. The easiest way to do
+;; that is just to go ahead and resolve it now.
+;;
+(define-module (language objcode elf)
+ #:use-module (system vm objcode)
+ #:use-module (system base target)
+ #:use-module (rnrs bytevectors)
+ #:use-module (ice-9 binary-ports)
+ #:use-module (system vm elf)
+ #:export (write-objcode))
+
+(define (bytecode->elf bv)
+ (let ((string-table (make-elf-string-table)))
+ (define (intern-string! string)
+ (call-with-values
+ (lambda () (elf-string-table-intern string-table string))
+ (lambda (table idx)
+ (set! string-table table)
+ idx)))
+ (define (make-object name bv relocs . kwargs)
+ (let ((name-idx (intern-string! (symbol->string name))))
+ (make-elf-object (apply make-elf-section
+ #:name name-idx
+ #:size (bytevector-length bv)
+ kwargs)
+ bv relocs
+ (list (make-elf-symbol name 0)))))
+ (define (make-dynamic-section word-size endianness)
+ (define (make-dynamic-section/32)
+ (let ((bv (make-bytevector 24 0)))
+ (bytevector-u32-set! bv 0 DT_GUILE_RTL_VERSION endianness)
+ (bytevector-u32-set! bv 4 #x02000000 endianness)
+ (bytevector-u32-set! bv 8 DT_GUILE_ENTRY endianness)
+ (bytevector-u32-set! bv 12 0 endianness)
+ (bytevector-u32-set! bv 16 DT_NULL endianness)
+ (bytevector-u32-set! bv 20 0 endianness)
+ (values bv (make-elf-reloc 'abs32/1 12 0 '.rtl-text))))
+ (define (make-dynamic-section/64)
+ (let ((bv (make-bytevector 48 0)))
+ (bytevector-u64-set! bv 0 DT_GUILE_RTL_VERSION endianness)
+ (bytevector-u64-set! bv 8 #x02000000 endianness)
+ (bytevector-u64-set! bv 16 DT_GUILE_ENTRY endianness)
+ (bytevector-u64-set! bv 24 0 endianness)
+ (bytevector-u64-set! bv 32 DT_NULL endianness)
+ (bytevector-u64-set! bv 40 0 endianness)
+ (values bv (make-elf-reloc 'abs64/1 24 0 '.rtl-text))))
+ (call-with-values (lambda ()
+ (case word-size
+ ((4) (make-dynamic-section/32))
+ ((8) (make-dynamic-section/64))
+ (else (error "unexpected word size" word-size))))
+ (lambda (bv reloc)
+ (make-object '.dynamic bv (list reloc)
+ #:type SHT_DYNAMIC #:flags SHF_ALLOC))))
+ (define (link-string-table)
+ (intern-string! ".shstrtab")
+ (make-object '.shstrtab (link-elf-string-table string-table) '()
+ #:type SHT_STRTAB #:flags 0))
+ (let* ((word-size (target-word-size))
+ (endianness (target-endianness))
+ (text (make-object '.rtl-text bv '()))
+ (dt (make-dynamic-section word-size endianness))
+ ;; This needs to be linked last, because linking other
+ ;; sections adds entries to the string table.
+ (shstrtab (link-string-table)))
+ (link-elf (list text dt shstrtab)
+ #:endianness endianness #:word-size word-size))))
+
+(define (write-objcode objcode port)
+ (let ((bv (objcode->bytecode objcode (target-endianness))))
+ (put-bytevector port (bytecode->elf bv))))
diff --git a/module/language/objcode/spec.scm b/module/language/objcode/spec.scm
index 7cc85b7..022419e 100644
--- a/module/language/objcode/spec.scm
+++ b/module/language/objcode/spec.scm
@@ -22,6 +22,7 @@
#:use-module (system base language)
#:use-module (system vm objcode)
#:use-module (system vm program)
+ #:use-module (language objcode elf)
#:export (objcode))
(define (objcode->value x e opts)
diff --git a/module/scripts/disassemble.scm b/module/scripts/disassemble.scm
index 7dab2dd..094d656 100644
--- a/module/scripts/disassemble.scm
+++ b/module/scripts/disassemble.scm
@@ -1,6 +1,6 @@
;;; Disassemble --- Disassemble .go files into something human-readable
-;; Copyright 2005, 2008, 2009, 2011 Free Software Foundation, Inc.
+;; Copyright 2005, 2008, 2009, 2011, 2012 Free Software Foundation, Inc.
;;
;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the GNU Lesser General Public License
@@ -36,7 +36,7 @@
(define (disassemble . files)
(for-each (lambda (file)
- (asm:disassemble (load-objcode file)))
+ (asm:disassemble (load-thunk-from-file file)))
files))
(define main disassemble)
diff --git a/module/system/repl/command.scm b/module/system/repl/command.scm
index a709c8d..a9fdc99 100644
--- a/module/system/repl/command.scm
+++ b/module/system/repl/command.scm
@@ -1,6 +1,6 @@
;;; Repl commands
-;; Copyright (C) 2001, 2009, 2010, 2011 Free Software Foundation, Inc.
+;; Copyright (C) 2001, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
;; This library is free software; you can redistribute it and/or
;; modify it under the terms of the GNU Lesser General Public
@@ -490,7 +490,7 @@ Disassemble a compiled procedure."
(define-meta-command (disassemble-file repl file)
"disassemble-file FILE
Disassemble a file."
- (guile:disassemble (load-objcode (->string file))))
+ (guile:disassemble (load-thunk-from-file (->string file))))
;;;
diff --git a/module/system/vm/elf.scm b/module/system/vm/elf.scm
new file mode 100644
index 0000000..040b274
--- /dev/null
+++ b/module/system/vm/elf.scm
@@ -0,0 +1,1255 @@
+;;; Guile ELF reader and writer
+
+;; Copyright (C) 2011, 2012 Free Software Foundation, Inc.
+
+;;;; This library is free software; you can redistribute it and/or
+;;;; modify it under the terms of the GNU Lesser General Public
+;;;; License as published by the Free Software Foundation; either
+;;;; version 3 of the License, or (at your option) any later version.
+;;;;
+;;;; This library is distributed in the hope that it will be useful,
+;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+;;;; Lesser General Public License for more details.
+;;;;
+;;;; You should have received a copy of the GNU Lesser General Public
+;;;; License along with this library; if not, write to the Free Software
+;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
USA
+
+;;; Code:
+
+(define-module (system vm elf)
+ #:use-module (rnrs bytevectors)
+ #:use-module (system foreign)
+ #:use-module (system base target)
+ #:use-module (srfi srfi-9)
+ #:use-module (ice-9 receive)
+ #:use-module (ice-9 vlist)
+ #:export (has-elf-header?
+
+ make-elf elf?
+ elf-bytes elf-word-size elf-byte-order
+ elf-abi elf-type elf-machine-type
+ elf-entry elf-phoff elf-shoff elf-flags elf-ehsize
+ elf-phentsize elf-phnum elf-shentsize elf-shnum elf-shstrndx
+
+ (make-elf-segment* . make-elf-segment)
+ elf-segment?
+ elf-segment-type elf-segment-offset elf-segment-vaddr
+ elf-segment-paddr elf-segment-filesz elf-segment-memsz
+ elf-segment-flags elf-segment-align
+
+ (make-elf-section* . make-elf-section)
+ elf-section?
+ elf-section-name elf-section-type elf-section-flags
+ elf-section-addr elf-section-offset elf-section-size
+ elf-section-link elf-section-info elf-section-addralign
+ elf-section-entsize
+
+ make-elf-symbol elf-symbol?
+ elf-symbol-name elf-symbol-value elf-symbol-size
+ elf-symbol-info elf-symbol-other elf-symbol-shndx
+ elf-symbol-binding elf-symbol-type elf-symbol-visibility
+
+ SHT_NULL SHT_PROGBITS SHT_SYMTAB SHT_STRTAB SHT_RELA
+ SHT_HASH SHT_DYNAMIC SHT_NOTE SHT_NOBITS SHT_REL SHT_SHLIB
+ SHT_DYNSYM SHT_INIT_ARRAY SHT_FINI_ARRAY SHT_PREINIT_ARRAY
+ SHT_GROUP SHT_SYMTAB_SHNDX SHT_NUM SHT_LOOS SHT_HIOS
+ SHT_LOPROC SHT_HIPROC SHT_LOUSER SHT_HIUSER
+
+ SHF_WRITE SHF_ALLOC SHF_EXECINSTR SHF_MERGE SHF_STRINGS
+ SHF_INFO_LINK SHF_LINK_ORDER SHF_OS_NONCONFORMING SHF_GROUP
+ SHF_TLS
+
+ DT_NULL DT_NEEDED DT_PLTRELSZ DT_PLTGOT DT_HASH DT_STRTAB
+ DT_SYMTAB DT_RELA DT_RELASZ DT_RELAENT DT_STRSZ DT_SYMENT
+ DT_INIT DT_FINI DT_SONAME DT_RPATH DT_SYMBOLIC DT_REL
+ DT_RELSZ DT_RELENT DT_PLTREL DT_DEBUG DT_TEXTREL DT_JMPREL
+ DT_BIND_NOW DT_INIT_ARRAY DT_FINI_ARRAY DT_INIT_ARRAYSZ
+ DT_FINI_ARRAYSZ DT_RUNPATH DT_FLAGS DT_ENCODING
+ DT_PREINIT_ARRAY DT_PREINIT_ARRAYSZ DT_NUM DT_LOGUILE
+ DT_GUILE_GC_ROOT DT_GUILE_GC_ROOT_SZ DT_GUILE_ENTRY
+ DT_GUILE_RTL_VERSION DT_HIGUILE DT_LOOS DT_HIOS DT_LOPROC
+ DT_HIPROC
+
+ STB_LOCAL STB_GLOBAL STB_WEAK STB_NUM STB_LOOS STB_GNU
+ STB_HIOS STB_LOPROC STB_HIPROC
+
+ STT_NOTYPE STT_OBJECT STT_FUNC STT_SECTION STT_FILE
+ STT_COMMON STT_TLS STT_NUM STT_LOOS STT_GNU STT_HIOS
+ STT_LOPROC STT_HIPROC
+
+ STV_DEFAULT STV_INTERNAL STV_HIDDEN STV_PROTECTED
+
+ NT_GNU_ABI_TAG NT_GNU_HWCAP NT_GNU_BUILD_ID NT_GNU_GOLD_VERSION
+
+ parse-elf
+ elf-segment elf-segments
+ elf-section elf-sections elf-sections-by-name
+ elf-symbol-table-ref
+
+ parse-elf-note
+ elf-note-name elf-note-desc elf-note-type
+
+ (make-string-table . make-elf-string-table)
+ (string-table-intern . elf-string-table-intern)
+ (link-string-table . link-elf-string-table)
+
+ (make-reloc . make-elf-reloc)
+ (make-symbol . make-elf-symbol)
+
+ (make-object . make-elf-object)
+ (object? . elf-object?)
+ (object-section . elf-object-section)
+ (object-bv . elf-object-bv)
+ (object-relocs . elf-object-relocs)
+ (object-symbols . elf-object-symbols)
+
+ link-elf))
+
+;; #define EI_NIDENT 16
+
+;; typedef struct {
+;; unsigned char e_ident[EI_NIDENT];
+;; uint16_t e_type;
+;; uint16_t e_machine;
+;; uint32_t e_version;
+;; ElfN_Addr e_entry;
+;; ElfN_Off e_phoff;
+;; ElfN_Off e_shoff;
+;; uint32_t e_flags;
+;; uint16_t e_ehsize;
+;; uint16_t e_phentsize;
+;; uint16_t e_phnum;
+;; uint16_t e_shentsize;
+;; uint16_t e_shnum;
+;; uint16_t e_shstrndx;
+;; } ElfN_Ehdr;
+
+(define elf32-header-len 52)
+(define elf64-header-len 64)
+(define (elf-header-len word-size)
+ (case word-size
+ ((4) elf32-header-len)
+ ((8) elf64-header-len)
+ (else (error "invalid word size" word-size))))
+
+(define ELFCLASS32 1) ; 32-bit objects
+(define ELFCLASS64 2) ; 64-bit objects
+
+(define ELFDATA2LSB 1) ; 2's complement, little endian
+(define ELFDATA2MSB 2) ; 2's complement, big endian
+
+(define EV_CURRENT 1) ; Current version
+
+(define ELFOSABI_STANDALONE 255) ; Standalone (embedded) application
+
+(define ET_DYN 3) ; Shared object file
+
+;;
+;; Machine types
+;;
+;; Just a sampling of these values. We could include more, but the
+;; important thing is to recognize architectures for which we have a
+;; native compiler. Recognizing more common machine types is icing on
+;; the cake.
+;;
+(define EM_NONE 0) ; No machine
+(define EM_SPARC 2) ; SUN SPARC
+(define EM_386 3) ; Intel 80386
+(define EM_MIPS 8) ; MIPS R3000 big-endian
+(define EM_PPC 20) ; PowerPC
+(define EM_PPC64 21) ; PowerPC 64-bit
+(define EM_ARM 40) ; ARM
+(define EM_SH 42) ; Hitachi SH
+(define EM_SPARCV9 43) ; SPARC v9 64-bit
+(define EM_IA_64 50) ; Intel Merced
+(define EM_X86_64 62) ; AMD x86-64 architecture
+
+(define cpu-mapping (make-hash-table))
+(for-each (lambda (pair)
+ (hashq-set! cpu-mapping (car pair) (cdr pair)))
+ `((none . ,EM_NONE)
+ (sparc . ,EM_SPARC) ; FIXME: map 64-bit to SPARCV9 ?
+ (i386 . ,EM_386)
+ (mips . ,EM_MIPS)
+ (ppc . ,EM_PPC)
+ (ppc64 . ,EM_PPC64)
+ (arm . ,EM_ARM) ; FIXME: there are more arm cpu variants
+ (sh . ,EM_SH) ; FIXME: there are more sh cpu variants
+ (ia64 . ,EM_IA_64)
+ (x86_64 . ,EM_X86_64)))
+
+(define SHN_UNDEF 0)
+
+(define host-machine-type
+ (hashq-ref cpu-mapping
+ (string->symbol (car (string-split %host-type #\-)))
+ EM_NONE))
+
+(define host-word-size
+ (sizeof '*))
+
+(define host-byte-order
+ (native-endianness))
+
+(define (has-elf-header? bv)
+ (and
+ ;; e_ident
+ (>= (bytevector-length bv) 16)
+ (= (bytevector-u8-ref bv 0) #x7f)
+ (= (bytevector-u8-ref bv 1) (char->integer #\E))
+ (= (bytevector-u8-ref bv 2) (char->integer #\L))
+ (= (bytevector-u8-ref bv 3) (char->integer #\F))
+ (cond
+ ((= (bytevector-u8-ref bv 4) ELFCLASS32)
+ (>= (bytevector-length bv) elf32-header-len))
+ ((= (bytevector-u8-ref bv 4) ELFCLASS64)
+ (>= (bytevector-length bv) elf64-header-len))
+ (else #f))
+ (or (= (bytevector-u8-ref bv 5) ELFDATA2LSB)
+ (= (bytevector-u8-ref bv 5) ELFDATA2MSB))
+ (= (bytevector-u8-ref bv 6) EV_CURRENT)
+ ;; Look at ABI later.
+ (= (bytevector-u8-ref bv 8) 0) ; ABI version
+ ;; The rest of the e_ident is padding.
+
+ ;; e_version
+ (let ((byte-order (if (= (bytevector-u8-ref bv 5) ELFDATA2LSB)
+ (endianness little)
+ (endianness big))))
+ (= (bytevector-u32-ref bv 20 byte-order) EV_CURRENT))))
+
+(define-record-type <elf>
+ (make-elf bytes word-size byte-order abi type machine-type
+ entry phoff shoff flags ehsize
+ phentsize phnum shentsize shnum shstrndx)
+ elf?
+ (bytes elf-bytes)
+ (word-size elf-word-size)
+ (byte-order elf-byte-order)
+ (abi elf-abi)
+ (type elf-type)
+ (machine-type elf-machine-type)
+ (entry elf-entry)
+ (phoff elf-phoff)
+ (shoff elf-shoff)
+ (flags elf-flags)
+ (ehsize elf-ehsize)
+ (phentsize elf-phentsize)
+ (phnum elf-phnum)
+ (shentsize elf-shentsize)
+ (shnum elf-shnum)
+ (shstrndx elf-shstrndx))
+
+(define (parse-elf32 bv byte-order)
+ (make-elf bv 4 byte-order
+ (bytevector-u8-ref bv 7)
+ (bytevector-u16-ref bv 16 byte-order)
+ (bytevector-u16-ref bv 18 byte-order)
+ (bytevector-u32-ref bv 24 byte-order)
+ (bytevector-u32-ref bv 28 byte-order)
+ (bytevector-u32-ref bv 32 byte-order)
+ (bytevector-u32-ref bv 36 byte-order)
+ (bytevector-u16-ref bv 40 byte-order)
+ (bytevector-u16-ref bv 42 byte-order)
+ (bytevector-u16-ref bv 44 byte-order)
+ (bytevector-u16-ref bv 46 byte-order)
+ (bytevector-u16-ref bv 48 byte-order)
+ (bytevector-u16-ref bv 50 byte-order)))
+
+(define (write-elf-ident bv class data abi)
+ (bytevector-u8-set! bv 0 #x7f)
+ (bytevector-u8-set! bv 1 (char->integer #\E))
+ (bytevector-u8-set! bv 2 (char->integer #\L))
+ (bytevector-u8-set! bv 3 (char->integer #\F))
+ (bytevector-u8-set! bv 4 class)
+ (bytevector-u8-set! bv 5 data)
+ (bytevector-u8-set! bv 6 EV_CURRENT)
+ (bytevector-u8-set! bv 7 abi)
+ (bytevector-u8-set! bv 8 0) ; ABI version
+ (bytevector-u8-set! bv 9 0) ; Pad to 16 bytes.
+ (bytevector-u8-set! bv 10 0)
+ (bytevector-u8-set! bv 11 0)
+ (bytevector-u8-set! bv 12 0)
+ (bytevector-u8-set! bv 13 0)
+ (bytevector-u8-set! bv 14 0)
+ (bytevector-u8-set! bv 15 0))
+
+(define (write-elf32 bv byte-order abi type machine-type
+ entry phoff shoff flags ehsize phentsize phnum
+ shentsize shnum shstrndx)
+ (write-elf-ident bv ELFCLASS32
+ (case byte-order
+ ((little) ELFDATA2LSB)
+ ((big) ELFDATA2MSB)
+ (else (error "unknown endianness" byte-order)))
+ abi)
+ (bytevector-u16-set! bv 16 type byte-order)
+ (bytevector-u16-set! bv 18 machine-type byte-order)
+ (bytevector-u32-set! bv 20 EV_CURRENT byte-order)
+ (bytevector-u32-set! bv 24 entry byte-order)
+ (bytevector-u32-set! bv 28 phoff byte-order)
+ (bytevector-u32-set! bv 32 shoff byte-order)
+ (bytevector-u32-set! bv 36 flags byte-order)
+ (bytevector-u16-set! bv 40 ehsize byte-order)
+ (bytevector-u16-set! bv 42 phentsize byte-order)
+ (bytevector-u16-set! bv 44 phnum byte-order)
+ (bytevector-u16-set! bv 46 shentsize byte-order)
+ (bytevector-u16-set! bv 48 shnum byte-order)
+ (bytevector-u16-set! bv 50 shstrndx byte-order))
+
+(define (parse-elf64 bv byte-order)
+ (make-elf bv 8 byte-order
+ (bytevector-u8-ref bv 7)
+ (bytevector-u16-ref bv 16 byte-order)
+ (bytevector-u16-ref bv 18 byte-order)
+ (bytevector-u64-ref bv 24 byte-order)
+ (bytevector-u64-ref bv 32 byte-order)
+ (bytevector-u64-ref bv 40 byte-order)
+ (bytevector-u32-ref bv 48 byte-order)
+ (bytevector-u16-ref bv 52 byte-order)
+ (bytevector-u16-ref bv 54 byte-order)
+ (bytevector-u16-ref bv 56 byte-order)
+ (bytevector-u16-ref bv 58 byte-order)
+ (bytevector-u16-ref bv 60 byte-order)
+ (bytevector-u16-ref bv 62 byte-order)))
+
+(define (write-elf64 bv byte-order abi type machine-type
+ entry phoff shoff flags ehsize phentsize phnum
+ shentsize shnum shstrndx)
+ (write-elf-ident bv ELFCLASS64
+ (case byte-order
+ ((little) ELFDATA2LSB)
+ ((big) ELFDATA2MSB)
+ (else (error "unknown endianness" byte-order)))
+ abi)
+ (bytevector-u16-set! bv 16 type byte-order)
+ (bytevector-u16-set! bv 18 machine-type byte-order)
+ (bytevector-u32-set! bv 20 EV_CURRENT byte-order)
+ (bytevector-u64-set! bv 24 entry byte-order)
+ (bytevector-u64-set! bv 32 phoff byte-order)
+ (bytevector-u64-set! bv 40 shoff byte-order)
+ (bytevector-u32-set! bv 48 flags byte-order)
+ (bytevector-u16-set! bv 52 ehsize byte-order)
+ (bytevector-u16-set! bv 54 phentsize byte-order)
+ (bytevector-u16-set! bv 56 phnum byte-order)
+ (bytevector-u16-set! bv 58 shentsize byte-order)
+ (bytevector-u16-set! bv 60 shnum byte-order)
+ (bytevector-u16-set! bv 62 shstrndx byte-order))
+
+(define (parse-elf bv)
+ (cond
+ ((has-elf-header? bv)
+ (let ((class (bytevector-u8-ref bv 4))
+ (byte-order (let ((data (bytevector-u8-ref bv 5)))
+ (cond
+ ((= data ELFDATA2LSB) (endianness little))
+ ((= data ELFDATA2MSB) (endianness big))
+ (else (error "unhandled byte order" data))))))
+ (cond
+ ((= class ELFCLASS32) (parse-elf32 bv byte-order))
+ ((= class ELFCLASS64) (parse-elf64 bv byte-order))
+ (else (error "unhandled class" class)))))
+ (else
+ (error "Invalid ELF" bv))))
+
+(define* (write-elf-header bv #:key
+ (byte-order (target-endianness))
+ (word-size (target-word-size))
+ (abi ELFOSABI_STANDALONE)
+ (type ET_DYN)
+ (machine-type EM_NONE)
+ (entry 0)
+ (phoff (elf-header-len word-size))
+ (shoff -1)
+ (flags 0)
+ (ehsize (elf-header-len word-size))
+ (phentsize (elf-program-header-len word-size))
+ (phnum 0)
+ (shentsize (elf-section-header-len word-size))
+ (shnum 0)
+ (shstrndx SHN_UNDEF))
+ ((case word-size
+ ((4) write-elf32)
+ ((8) write-elf64)
+ (else (error "unknown word size" word-size)))
+ bv byte-order abi type machine-type entry phoff shoff
+ flags ehsize phentsize phnum shentsize shnum shstrndx))
+
+;;
+;; Segment types
+;;
+(define PT_NULL 0) ; Program header table entry unused
+(define PT_LOAD 1) ; Loadable program segment
+(define PT_DYNAMIC 2) ; Dynamic linking information
+(define PT_INTERP 3) ; Program interpreter
+(define PT_NOTE 4) ; Auxiliary information
+(define PT_SHLIB 5) ; Reserved
+(define PT_PHDR 6) ; Entry for header table itself
+(define PT_TLS 7) ; Thread-local storage segment
+(define PT_NUM 8) ; Number of defined types
+(define PT_LOOS #x60000000) ; Start of OS-specific
+(define PT_GNU_EH_FRAME #x6474e550) ; GCC .eh_frame_hdr segment
+(define PT_GNU_STACK #x6474e551) ; Indicates stack executability
+(define PT_GNU_RELRO #x6474e552) ; Read-only after relocation
+
+;;
+;; Segment flags
+;;
+(define PF_X (ash 1 0)) ; Segment is executable
+(define PF_W (ash 1 1)) ; Segment is writable
+(define PF_R (ash 1 2)) ; Segment is readable
+
+(define-record-type <elf-segment>
+ (make-elf-segment type offset vaddr paddr filesz memsz flags align)
+ elf-segment?
+ (type elf-segment-type)
+ (offset elf-segment-offset)
+ (vaddr elf-segment-vaddr)
+ (paddr elf-segment-paddr)
+ (filesz elf-segment-filesz)
+ (memsz elf-segment-memsz)
+ (flags elf-segment-flags)
+ (align elf-segment-align))
+
+(define* (make-elf-segment* #:key (type PT_LOAD) (offset 0) (vaddr 0)
+ (paddr 0) (filesz 0) (memsz filesz)
+ (flags (logior PF_W PF_R))
+ (align 8))
+ (make-elf-segment type offset vaddr paddr filesz memsz flags align))
+
+;; typedef struct {
+;; uint32_t p_type;
+;; Elf32_Off p_offset;
+;; Elf32_Addr p_vaddr;
+;; Elf32_Addr p_paddr;
+;; uint32_t p_filesz;
+;; uint32_t p_memsz;
+;; uint32_t p_flags;
+;; uint32_t p_align;
+;; } Elf32_Phdr;
+
+(define (parse-elf32-program-header bv offset byte-order)
+ (if (<= (+ offset 32) (bytevector-length bv))
+ (make-elf-segment (bytevector-u32-ref bv offset byte-order)
+ (bytevector-u32-ref bv (+ offset 4) byte-order)
+ (bytevector-u32-ref bv (+ offset 8) byte-order)
+ (bytevector-u32-ref bv (+ offset 12) byte-order)
+ (bytevector-u32-ref bv (+ offset 16) byte-order)
+ (bytevector-u32-ref bv (+ offset 20) byte-order)
+ (bytevector-u32-ref bv (+ offset 24) byte-order)
+ (bytevector-u32-ref bv (+ offset 28) byte-order))
+ (error "corrupt ELF (offset out of range)" offset)))
+
+(define (write-elf32-program-header bv offset byte-order seg)
+ (bytevector-u32-set! bv offset (elf-segment-type seg) byte-order)
+ (bytevector-u32-set! bv (+ offset 4) (elf-segment-offset seg) byte-order)
+ (bytevector-u32-set! bv (+ offset 8) (elf-segment-vaddr seg) byte-order)
+ (bytevector-u32-set! bv (+ offset 12) (elf-segment-paddr seg) byte-order)
+ (bytevector-u32-set! bv (+ offset 16) (elf-segment-filesz seg) byte-order)
+ (bytevector-u32-set! bv (+ offset 20) (elf-segment-memsz seg) byte-order)
+ (bytevector-u32-set! bv (+ offset 24) (elf-segment-flags seg) byte-order)
+ (bytevector-u32-set! bv (+ offset 28) (elf-segment-align seg) byte-order))
+
+
+;; typedef struct {
+;; uint32_t p_type;
+;; uint32_t p_flags;
+;; Elf64_Off p_offset;
+;; Elf64_Addr p_vaddr;
+;; Elf64_Addr p_paddr;
+;; uint64_t p_filesz;
+;; uint64_t p_memsz;
+;; uint64_t p_align;
+;; } Elf64_Phdr;
+
+;; NB: position of `flags' is different!
+
+(define (parse-elf64-program-header bv offset byte-order)
+ (if (<= (+ offset 56) (bytevector-length bv))
+ (make-elf-segment (bytevector-u32-ref bv offset byte-order)
+ (bytevector-u64-ref bv (+ offset 8) byte-order)
+ (bytevector-u64-ref bv (+ offset 16) byte-order)
+ (bytevector-u64-ref bv (+ offset 24) byte-order)
+ (bytevector-u64-ref bv (+ offset 32) byte-order)
+ (bytevector-u64-ref bv (+ offset 40) byte-order)
+ (bytevector-u32-ref bv (+ offset 4) byte-order)
+ (bytevector-u64-ref bv (+ offset 48) byte-order))
+ (error "corrupt ELF (offset out of range)" offset)))
+
+(define (write-elf64-program-header bv offset byte-order seg)
+ (bytevector-u32-set! bv offset (elf-segment-type seg) byte-order)
+ (bytevector-u64-set! bv (+ offset 8) (elf-segment-offset seg) byte-order)
+ (bytevector-u64-set! bv (+ offset 16) (elf-segment-vaddr seg) byte-order)
+ (bytevector-u64-set! bv (+ offset 24) (elf-segment-paddr seg) byte-order)
+ (bytevector-u64-set! bv (+ offset 32) (elf-segment-filesz seg) byte-order)
+ (bytevector-u64-set! bv (+ offset 40) (elf-segment-memsz seg) byte-order)
+ (bytevector-u32-set! bv (+ offset 4) (elf-segment-flags seg) byte-order)
+ (bytevector-u64-set! bv (+ offset 48) (elf-segment-align seg) byte-order))
+
+(define (write-elf-program-header bv offset byte-order word-size seg)
+ ((case word-size
+ ((4) write-elf32-program-header)
+ ((8) write-elf64-program-header)
+ (else (error "invalid word size" word-size)))
+ bv offset byte-order seg))
+
+(define (elf-program-header-len word-size)
+ (case word-size
+ ((4) 32)
+ ((8) 56)
+ (else (error "bad word size" word-size))))
+
+(define (elf-segment elf n)
+ (if (not (< -1 n (elf-phnum elf)))
+ (error "bad segment number" n))
+ ((case (elf-word-size elf)
+ ((4) parse-elf32-program-header)
+ ((8) parse-elf64-program-header)
+ (else (error "unhandled pointer size")))
+ (elf-bytes elf)
+ (+ (elf-phoff elf) (* n (elf-phentsize elf)))
+ (elf-byte-order elf)))
+
+(define (elf-segments elf)
+ (let lp ((n (elf-phnum elf)) (out '()))
+ (if (zero? n)
+ out
+ (lp (1- n) (cons (elf-segment elf (1- n)) out)))))
+
+(define-record-type <elf-section>
+ (make-elf-section name type flags addr offset size link info addralign
entsize)
+ elf-section?
+ (name elf-section-name)
+ (type elf-section-type)
+ (flags elf-section-flags)
+ (addr elf-section-addr)
+ (offset elf-section-offset)
+ (size elf-section-size)
+ (link elf-section-link)
+ (info elf-section-info)
+ (addralign elf-section-addralign)
+ (entsize elf-section-entsize))
+
+(define* (make-elf-section* #:key (name 0) (type SHT_PROGBITS)
+ (flags SHF_ALLOC) (addr 0) (offset 0) (size 0)
+ (link 0) (info 0) (addralign 8) (entsize 0))
+ (make-elf-section name type flags addr offset size link info addralign
+ entsize))
+
+;; typedef struct {
+;; uint32_t sh_name;
+;; uint32_t sh_type;
+;; uint32_t sh_flags;
+;; Elf32_Addr sh_addr;
+;; Elf32_Off sh_offset;
+;; uint32_t sh_size;
+;; uint32_t sh_link;
+;; uint32_t sh_info;
+;; uint32_t sh_addralign;
+;; uint32_t sh_entsize;
+;; } Elf32_Shdr;
+
+(define (parse-elf32-section-header bv offset byte-order)
+ (if (<= (+ offset 40) (bytevector-length bv))
+ (make-elf-section (bytevector-u32-ref bv offset byte-order)
+ (bytevector-u32-ref bv (+ offset 4) byte-order)
+ (bytevector-u32-ref bv (+ offset 8) byte-order)
+ (bytevector-u32-ref bv (+ offset 12) byte-order)
+ (bytevector-u32-ref bv (+ offset 16) byte-order)
+ (bytevector-u32-ref bv (+ offset 20) byte-order)
+ (bytevector-u32-ref bv (+ offset 24) byte-order)
+ (bytevector-u32-ref bv (+ offset 28) byte-order)
+ (bytevector-u32-ref bv (+ offset 32) byte-order)
+ (bytevector-u32-ref bv (+ offset 36) byte-order))
+ (error "corrupt ELF (offset out of range)" offset)))
+
+(define (write-elf32-section-header bv offset byte-order sec)
+ (bytevector-u32-set! bv offset (elf-section-name sec) byte-order)
+ (bytevector-u32-set! bv (+ offset 4) (elf-section-type sec) byte-order)
+ (bytevector-u32-set! bv (+ offset 8) (elf-section-flags sec) byte-order)
+ (bytevector-u32-set! bv (+ offset 12) (elf-section-addr sec) byte-order)
+ (bytevector-u32-set! bv (+ offset 16) (elf-section-offset sec) byte-order)
+ (bytevector-u32-set! bv (+ offset 20) (elf-section-size sec) byte-order)
+ (bytevector-u32-set! bv (+ offset 24) (elf-section-link sec) byte-order)
+ (bytevector-u32-set! bv (+ offset 28) (elf-section-info sec) byte-order)
+ (bytevector-u32-set! bv (+ offset 32) (elf-section-addralign sec) byte-order)
+ (bytevector-u32-set! bv (+ offset 36) (elf-section-entsize sec) byte-order))
+
+
+;; typedef struct {
+;; uint32_t sh_name;
+;; uint32_t sh_type;
+;; uint64_t sh_flags;
+;; Elf64_Addr sh_addr;
+;; Elf64_Off sh_offset;
+;; uint64_t sh_size;
+;; uint32_t sh_link;
+;; uint32_t sh_info;
+;; uint64_t sh_addralign;
+;; uint64_t sh_entsize;
+;; } Elf64_Shdr;
+
+(define (elf-section-header-len word-size)
+ (case word-size
+ ((4) 40)
+ ((8) 64)
+ (else (error "bad word size" word-size))))
+
+(define (parse-elf64-section-header bv offset byte-order)
+ (if (<= (+ offset 64) (bytevector-length bv))
+ (make-elf-section (bytevector-u32-ref bv offset byte-order)
+ (bytevector-u32-ref bv (+ offset 4) byte-order)
+ (bytevector-u64-ref bv (+ offset 8) byte-order)
+ (bytevector-u64-ref bv (+ offset 16) byte-order)
+ (bytevector-u64-ref bv (+ offset 24) byte-order)
+ (bytevector-u64-ref bv (+ offset 32) byte-order)
+ (bytevector-u32-ref bv (+ offset 40) byte-order)
+ (bytevector-u32-ref bv (+ offset 44) byte-order)
+ (bytevector-u64-ref bv (+ offset 48) byte-order)
+ (bytevector-u64-ref bv (+ offset 56) byte-order))
+ (error "corrupt ELF (offset out of range)" offset)))
+
+(define (write-elf64-section-header bv offset byte-order sec)
+ (bytevector-u32-set! bv offset (elf-section-name sec) byte-order)
+ (bytevector-u32-set! bv (+ offset 4) (elf-section-type sec) byte-order)
+ (bytevector-u64-set! bv (+ offset 8) (elf-section-flags sec) byte-order)
+ (bytevector-u64-set! bv (+ offset 16) (elf-section-addr sec) byte-order)
+ (bytevector-u64-set! bv (+ offset 24) (elf-section-offset sec) byte-order)
+ (bytevector-u64-set! bv (+ offset 32) (elf-section-size sec) byte-order)
+ (bytevector-u32-set! bv (+ offset 40) (elf-section-link sec) byte-order)
+ (bytevector-u32-set! bv (+ offset 44) (elf-section-info sec) byte-order)
+ (bytevector-u64-set! bv (+ offset 48) (elf-section-addralign sec) byte-order)
+ (bytevector-u64-set! bv (+ offset 56) (elf-section-entsize sec) byte-order))
+
+(define (elf-section elf n)
+ (if (not (< -1 n (elf-shnum elf)))
+ (error "bad section number" n))
+ ((case (elf-word-size elf)
+ ((4) parse-elf32-section-header)
+ ((8) parse-elf64-section-header)
+ (else (error "unhandled pointer size")))
+ (elf-bytes elf)
+ (+ (elf-shoff elf) (* n (elf-shentsize elf)))
+ (elf-byte-order elf)))
+
+(define (write-elf-section-header bv offset byte-order word-size sec)
+ ((case word-size
+ ((4) write-elf32-section-header)
+ ((8) write-elf64-section-header)
+ (else (error "invalid word size" word-size)))
+ bv offset byte-order sec))
+
+(define (elf-sections elf)
+ (let lp ((n (elf-shnum elf)) (out '()))
+ (if (zero? n)
+ out
+ (lp (1- n) (cons (elf-section elf (1- n)) out)))))
+
+;;
+;; Section Types
+;;
+(define SHT_NULL 0) ; Section header table entry unused
+(define SHT_PROGBITS 1) ; Program data
+(define SHT_SYMTAB 2) ; Symbol table
+(define SHT_STRTAB 3) ; String table
+(define SHT_RELA 4) ; Relocation entries with addends
+(define SHT_HASH 5) ; Symbol hash table
+(define SHT_DYNAMIC 6) ; Dynamic linking information
+(define SHT_NOTE 7) ; Notes
+(define SHT_NOBITS 8) ; Program space with no data (bss)
+(define SHT_REL 9) ; Relocation entries, no addends
+(define SHT_SHLIB 10) ; Reserved
+(define SHT_DYNSYM 11) ; Dynamic linker symbol table
+(define SHT_INIT_ARRAY 14) ; Array of constructors
+(define SHT_FINI_ARRAY 15) ; Array of destructors
+(define SHT_PREINIT_ARRAY 16) ; Array of pre-constructors
+(define SHT_GROUP 17) ; Section group
+(define SHT_SYMTAB_SHNDX 18) ; Extended section indeces
+(define SHT_NUM 19) ; Number of defined types.
+(define SHT_LOOS #x60000000) ; Start OS-specific.
+(define SHT_HIOS #x6fffffff) ; End OS-specific type
+(define SHT_LOPROC #x70000000) ; Start of processor-specific
+(define SHT_HIPROC #x7fffffff) ; End of processor-specific
+(define SHT_LOUSER #x80000000) ; Start of application-specific
+(define SHT_HIUSER #x8fffffff) ; End of application-specific
+
+;;
+;; Section Flags
+;;
+(define SHF_WRITE (ash 1 0)) ; Writable
+(define SHF_ALLOC (ash 1 1)) ; Occupies memory during execution
+(define SHF_EXECINSTR (ash 1 2)) ; Executable
+(define SHF_MERGE (ash 1 4)) ; Might be merged
+(define SHF_STRINGS (ash 1 5)) ; Contains nul-terminated strings
+(define SHF_INFO_LINK (ash 1 6)) ; `sh_info' contains SHT index
+(define SHF_LINK_ORDER (ash 1 7)) ; Preserve order after combining
+(define SHF_OS_NONCONFORMING (ash 1 8)) ; Non-standard OS specific handling
required
+(define SHF_GROUP (ash 1 9)) ; Section is member of a group.
+(define SHF_TLS (ash 1 10)) ; Section hold thread-local data.
+
+;;
+;; Dynamic entry types. The DT_GUILE types are non-standard.
+;;
+(define DT_NULL 0) ; Marks end of dynamic section
+(define DT_NEEDED 1) ; Name of needed library
+(define DT_PLTRELSZ 2) ; Size in bytes of PLT relocs
+(define DT_PLTGOT 3) ; Processor defined value
+(define DT_HASH 4) ; Address of symbol hash table
+(define DT_STRTAB 5) ; Address of string table
+(define DT_SYMTAB 6) ; Address of symbol table
+(define DT_RELA 7) ; Address of Rela relocs
+(define DT_RELASZ 8) ; Total size of Rela relocs
+(define DT_RELAENT 9) ; Size of one Rela reloc
+(define DT_STRSZ 10) ; Size of string table
+(define DT_SYMENT 11) ; Size of one symbol table entry
+(define DT_INIT 12) ; Address of init function
+(define DT_FINI 13) ; Address of termination
function
+(define DT_SONAME 14) ; Name of shared object
+(define DT_RPATH 15) ; Library search path (deprecated)
+(define DT_SYMBOLIC 16) ; Start symbol search here
+(define DT_REL 17) ; Address of Rel relocs
+(define DT_RELSZ 18) ; Total size of Rel relocs
+(define DT_RELENT 19) ; Size of one Rel reloc
+(define DT_PLTREL 20) ; Type of reloc in PLT
+(define DT_DEBUG 21) ; For debugging ; unspecified
+(define DT_TEXTREL 22) ; Reloc might modify .text
+(define DT_JMPREL 23) ; Address of PLT relocs
+(define DT_BIND_NOW 24) ; Process relocations of object
+(define DT_INIT_ARRAY 25) ; Array with addresses of init
fct
+(define DT_FINI_ARRAY 26) ; Array with addresses of fini
fct
+(define DT_INIT_ARRAYSZ 27) ; Size in bytes of DT_INIT_ARRAY
+(define DT_FINI_ARRAYSZ 28) ; Size in bytes of DT_FINI_ARRAY
+(define DT_RUNPATH 29) ; Library search path
+(define DT_FLAGS 30) ; Flags for the object being loaded
+(define DT_ENCODING 32) ; Start of encoded range
+(define DT_PREINIT_ARRAY 32) ; Array with addresses of preinit fc
+(define DT_PREINIT_ARRAYSZ 33) ; size in bytes of DT_PREINIT_ARRAY
+(define DT_NUM 34) ; Number used
+(define DT_LOGUILE #x37146000) ; Start of Guile-specific
+(define DT_GUILE_GC_ROOT #x37146000) ; Offset of GC roots
+(define DT_GUILE_GC_ROOT_SZ #x37146001) ; Size in machine words of GC roots
+(define DT_GUILE_ENTRY #x37146002) ; Address of entry thunk
+(define DT_GUILE_RTL_VERSION #x37146003); Bytecode version
+(define DT_HIGUILE #x37146fff) ; End of Guile-specific
+(define DT_LOOS #x6000000d) ; Start of OS-specific
+(define DT_HIOS #x6ffff000) ; End of OS-specific
+(define DT_LOPROC #x70000000) ; Start of processor-specific
+(define DT_HIPROC #x7fffffff) ; End of processor-specific
+
+
+(define (string-table-ref bv offset)
+ (let lp ((end offset))
+ (if (zero? (bytevector-u8-ref bv end))
+ (let ((out (make-bytevector (- end offset))))
+ (bytevector-copy! bv offset out 0 (- end offset))
+ (utf8->string out))
+ (lp (1+ end)))))
+
+(define (elf-sections-by-name elf)
+ (let* ((sections (elf-sections elf))
+ (off (elf-section-offset (list-ref sections (elf-shstrndx elf)))))
+ (map (lambda (section)
+ (cons (string-table-ref (elf-bytes elf)
+ (+ off (elf-section-name section)))
+ section))
+ sections)))
+
+(define-record-type <elf-symbol>
+ (make-elf-symbol name value size info other shndx)
+ elf-symbol?
+ (name elf-symbol-name)
+ (value elf-symbol-value)
+ (size elf-symbol-size)
+ (info elf-symbol-info)
+ (other elf-symbol-other)
+ (shndx elf-symbol-shndx))
+
+;; typedef struct {
+;; uint32_t st_name;
+;; Elf32_Addr st_value;
+;; uint32_t st_size;
+;; unsigned char st_info;
+;; unsigned char st_other;
+;; uint16_t st_shndx;
+;; } Elf32_Sym;
+
+(define (parse-elf32-symbol bv offset stroff byte-order)
+ (if (<= (+ offset 16) (bytevector-length bv))
+ (make-elf-symbol (let ((name (bytevector-u32-ref bv offset byte-order)))
+ (if stroff
+ (string-table-ref bv (+ stroff name))
+ name))
+ (bytevector-u32-ref bv (+ offset 4) byte-order)
+ (bytevector-u32-ref bv (+ offset 8) byte-order)
+ (bytevector-u8-ref bv (+ offset 12))
+ (bytevector-u8-ref bv (+ offset 13))
+ (bytevector-u16-ref bv (+ offset 14) byte-order))
+ (error "corrupt ELF (offset out of range)" offset)))
+
+;; typedef struct {
+;; uint32_t st_name;
+;; unsigned char st_info;
+;; unsigned char st_other;
+;; uint16_t st_shndx;
+;; Elf64_Addr st_value;
+;; uint64_t st_size;
+;; } Elf64_Sym;
+
+(define (parse-elf64-symbol bv offset stroff byte-order)
+ (if (<= (+ offset 24) (bytevector-length bv))
+ (make-elf-symbol (let ((name (bytevector-u32-ref bv offset byte-order)))
+ (if stroff
+ (string-table-ref bv (+ stroff name))
+ name))
+ (bytevector-u64-ref bv (+ offset 8) byte-order)
+ (bytevector-u64-ref bv (+ offset 16) byte-order)
+ (bytevector-u8-ref bv (+ offset 4))
+ (bytevector-u8-ref bv (+ offset 5))
+ (bytevector-u16-ref bv (+ offset 6) byte-order))
+ (error "corrupt ELF (offset out of range)" offset)))
+
+(define* (elf-symbol-table-ref elf section n #:optional strtab)
+ (let ((bv (elf-bytes elf))
+ (byte-order (elf-byte-order elf))
+ (stroff (and strtab (elf-section-offset strtab)))
+ (base (elf-section-offset section))
+ (len (elf-section-size section))
+ (entsize (elf-section-entsize section)))
+ (unless (<= (* (1+ n) entsize) len)
+ (error "out of range symbol table access" section n))
+ (case (elf-word-size elf)
+ ((4)
+ (unless (<= 16 entsize)
+ (error "bad entsize for symbol table" section))
+ (parse-elf32-symbol bv (+ base (* n entsize)) stroff byte-order))
+ ((8)
+ (unless (<= 24 entsize)
+ (error "bad entsize for symbol table" section))
+ (parse-elf64-symbol bv (+ base (* n entsize)) stroff byte-order))
+ (else (error "bad word size" elf)))))
+
+;; Legal values for ST_BIND subfield of st_info (symbol binding).
+
+(define STB_LOCAL 0) ; Local symbol
+(define STB_GLOBAL 1) ; Global symbol
+(define STB_WEAK 2) ; Weak symbol
+(define STB_NUM 3) ; Number of defined types.
+(define STB_LOOS 10) ; Start of OS-specific
+(define STB_GNU_UNIQUE 10) ; Unique symbol.
+(define STB_HIOS 12) ; End of OS-specific
+(define STB_LOPROC 13) ; Start of processor-specific
+(define STB_HIPROC 15) ; End of processor-specific
+
+;; Legal values for ST_TYPE subfield of st_info (symbol type).
+
+(define STT_NOTYPE 0) ; Symbol type is unspecified
+(define STT_OBJECT 1) ; Symbol is a data object
+(define STT_FUNC 2) ; Symbol is a code object
+(define STT_SECTION 3) ; Symbol associated with a section
+(define STT_FILE 4) ; Symbol's name is file name
+(define STT_COMMON 5) ; Symbol is a common data object
+(define STT_TLS 6) ; Symbol is thread-local data
objec
+(define STT_NUM 7) ; Number of defined types.
+(define STT_LOOS 10) ; Start of OS-specific
+(define STT_GNU_IFUNC 10) ; Symbol is indirect code object
+(define STT_HIOS 12) ; End of OS-specific
+(define STT_LOPROC 13) ; Start of processor-specific
+(define STT_HIPROC 15) ; End of processor-specific
+
+;; Symbol visibility specification encoded in the st_other field.
+
+(define STV_DEFAULT 0) ; Default symbol visibility rules
+(define STV_INTERNAL 1) ; Processor specific hidden class
+(define STV_HIDDEN 2) ; Sym unavailable in other modules
+(define STV_PROTECTED 3) ; Not preemptible, not exported
+
+(define (elf-symbol-binding sym)
+ (ash (elf-symbol-info sym) -4))
+
+(define (elf-symbol-type sym)
+ (logand (elf-symbol-info sym) #xf))
+
+(define (elf-symbol-visibility sym)
+ (logand (elf-symbol-other sym) #x3))
+
+(define NT_GNU_ABI_TAG 1)
+(define NT_GNU_HWCAP 2)
+(define NT_GNU_BUILD_ID 3)
+(define NT_GNU_GOLD_VERSION 4)
+
+(define-record-type <elf-note>
+ (make-elf-note name desc type)
+ elf-note?
+ (name elf-note-name)
+ (desc elf-note-desc)
+ (type elf-note-type))
+
+(define (parse-elf-note elf section)
+ (let ((bv (elf-bytes elf))
+ (byte-order (elf-byte-order elf))
+ (offset (elf-section-offset section)))
+ (unless (<= (+ offset 12) (bytevector-length bv))
+ (error "corrupt ELF (offset out of range)" offset))
+ (let ((namesz (bytevector-u32-ref bv offset byte-order))
+ (descsz (bytevector-u32-ref bv (+ offset 4) byte-order))
+ (type (bytevector-u32-ref bv (+ offset 8) byte-order)))
+ (unless (<= (+ offset 12 namesz descsz) (bytevector-length bv))
+ (error "corrupt ELF (offset out of range)" offset))
+ (let ((name (make-bytevector (1- namesz)))
+ (desc (make-bytevector descsz)))
+ (bytevector-copy! bv (+ offset 12) name 0 (1- namesz))
+ (bytevector-copy! bv (+ offset 12 namesz) desc 0 descsz)
+ (make-elf-note (utf8->string name) desc type)))))
+
+
+
+
+;;;
+;;; All of that was the parser. Now, on to a linker.
+;;;
+
+;; A relocation records a reference to a symbol. When the symbol is
+;; resolved to an address, the reloc location will be updated to point
+;; to the address.
+;;
+;; Two types. Abs32/1 and Abs64/1 are absolute offsets in bytes.
+;; Rel32/4 is a relative signed offset in 32-bit units. Either can have
+;; an arbitrary addend as well.
+;;
+(define-record-type <reloc>
+ (make-reloc type loc addend symbol)
+ reloc?
+ (type reloc-type) ;; rel32/4, abs32/1, abs64/1
+ (loc reloc-loc)
+ (addend reloc-addend)
+ (symbol reloc-symbol))
+
+;; A symbol is an association between a name and an address. The
+;; address is always in regard to some particular address space. When
+;; objects come into the linker, their symbols live in the object
+;; address space. When the objects are allocated into ELF segments, the
+;; symbols will be relocated into memory address space, corresponding to
+;; the position the ELF will be loaded at.
+;;
+(define-record-type <symbol>
+ (make-symbol name address)
+ symbol?
+ (name symbol-name)
+ (address symbol-address))
+
+(define-record-type <object>
+ (make-object section bv relocs symbols)
+ object?
+ (section object-section)
+ (bv object-bv)
+ (relocs object-relocs)
+ (symbols object-symbols))
+
+(define (make-string-table)
+ '(("" 0 #vu8())))
+
+(define (string-table-length table)
+ (let ((last (car table)))
+ ;; The + 1 is for the trailing NUL byte.
+ (+ (cadr last) (bytevector-length (caddr last)) 1)))
+
+(define (string-table-intern table str)
+ (cond
+ ((assoc str table)
+ => (lambda (ent)
+ (values table (cadr ent))))
+ (else
+ (let* ((next (string-table-length table)))
+ (values (cons (list str next (string->utf8 str))
+ table)
+ next)))))
+
+(define (link-string-table table)
+ (let ((out (make-bytevector (string-table-length table) 0)))
+ (for-each
+ (lambda (ent)
+ (let ((bytes (caddr ent)))
+ (bytevector-copy! bytes 0 out (cadr ent) (bytevector-length bytes))))
+ table)
+ out))
+
+(define (segment-kind section)
+ (let ((flags (elf-section-flags section)))
+ (cons (cond
+ ((= (elf-section-type section) SHT_DYNAMIC) PT_DYNAMIC)
+ ((zero? (logand SHF_ALLOC flags)) PT_NOTE)
+ (else PT_LOAD))
+ (logior (if (zero? (logand SHF_ALLOC flags))
+ 0
+ PF_R)
+ (if (zero? (logand SHF_EXECINSTR flags))
+ 0
+ PF_X)
+ (if (zero? (logand SHF_WRITE flags))
+ 0
+ PF_W)))))
+
+(define (group-by-cars ls)
+ (let lp ((in ls) (k #f) (group #f) (out '()))
+ (cond
+ ((null? in)
+ (reverse!
+ (if group
+ (cons (cons k (reverse! group)) out)
+ out)))
+ ((and group (equal? k (caar in)))
+ (lp (cdr in) k (cons (cdar in) group) out))
+ (else
+ (lp (cdr in) (caar in) (list (cdar in))
+ (if group
+ (cons (cons k (reverse! group)) out)
+ out))))))
+
+(define (collate-objects-into-segments objects)
+ (group-by-cars
+ (stable-sort!
+ (map (lambda (o)
+ (cons (segment-kind (object-section o)) o))
+ objects)
+ (lambda (x y)
+ (let ((x-type (caar x)) (y-type (caar y))
+ (x-flags (cdar x)) (y-flags (cdar y))
+ (x-section (object-section (cdr x)))
+ (y-section (object-section (cdr y))))
+ (cond
+ ((not (equal? x-flags y-flags))
+ (< x-flags y-flags))
+ ((not (equal? x-type y-type))
+ (< x-type y-type))
+ ((not (equal? (elf-section-type x-section)
+ (elf-section-type y-section)))
+ (cond
+ ((equal? (elf-section-type x-section) SHT_NOBITS) #t)
+ ((equal? (elf-section-type y-section) SHT_NOBITS) #f)
+ (else (< (elf-section-type x-section)
+ (elf-section-type y-section)))))
+ (else
+ (< (elf-section-size x-section)
+ (elf-section-size y-section)))))))))
+
+(define (align address alignment)
+ (+ address
+ (modulo (- alignment (modulo address alignment)) alignment)))
+
+(define (fold1 proc ls s0)
+ (let lp ((ls ls) (s0 s0))
+ (if (null? ls)
+ s0
+ (lp (cdr ls) (proc (car ls) s0)))))
+
+(define (fold2 proc ls s0 s1)
+ (let lp ((ls ls) (s0 s0) (s1 s1))
+ (if (null? ls)
+ (values s0 s1)
+ (receive (s0 s1) (proc (car ls) s0 s1)
+ (lp (cdr ls) s0 s1)))))
+
+(define (fold4 proc ls s0 s1 s2 s3)
+ (let lp ((ls ls) (s0 s0) (s1 s1) (s2 s2) (s3 s3))
+ (if (null? ls)
+ (values s0 s1 s2 s3)
+ (receive (s0 s1 s2 s3) (proc (car ls) s0 s1 s2 s3)
+ (lp (cdr ls) s0 s1 s2 s3)))))
+
+(define (fold5 proc ls s0 s1 s2 s3 s4)
+ (let lp ((ls ls) (s0 s0) (s1 s1) (s2 s2) (s3 s3) (s4 s4))
+ (if (null? ls)
+ (values s0 s1 s2 s3 s4)
+ (receive (s0 s1 s2 s3 s4) (proc (car ls) s0 s1 s2 s3 s4)
+ (lp (cdr ls) s0 s1 s2 s3 s4)))))
+
+(define (relocate-section-header sec fileaddr memaddr)
+ (make-elf-section (elf-section-name sec) (elf-section-type sec)
+ (elf-section-flags sec) memaddr
+ fileaddr (elf-section-size sec)
+ (elf-section-link sec) (elf-section-info sec)
+ (elf-section-addralign sec) (elf-section-entsize sec)))
+
+(define *page-size* 4096)
+
+;; Adds object symbols to global table, relocating them from object
+;; address space to memory address space.
+(define (add-symbols symbols offset symtab)
+ (fold1 (lambda (symbol symtab)
+ (let ((name (symbol-name symbol))
+ (addr (symbol-address symbol)))
+ (vhash-consq name (make-symbol name (+ addr offset)) symtab)))
+ symbols
+ symtab))
+
+(define (alloc-segment type flags objects fileaddr memaddr symtab alignment)
+ (let* ((loadable? (not (zero? flags)))
+ (alignment (fold1 (lambda (o alignment)
+ (lcm (elf-section-addralign (object-section o))
+ alignment))
+ objects
+ alignment))
+ (fileaddr (align fileaddr alignment))
+ (memaddr (align memaddr alignment)))
+ (receive (objects fileend memend symtab)
+ (fold4 (lambda (o out fileaddr memaddr symtab)
+ (let* ((section (object-section o))
+ (fileaddr
+ (if (= (elf-section-type section) SHT_NOBITS)
+ fileaddr
+ (align fileaddr (elf-section-addralign section))))
+ (memaddr
+ (align memaddr (elf-section-addralign section))))
+ (values
+ (cons (make-object (relocate-section-header section
fileaddr
+ memaddr)
+ (object-bv o)
+ (object-relocs o)
+ (object-symbols o))
+ out)
+ (if (= (elf-section-type section) SHT_NOBITS)
+ fileaddr
+ (+ fileaddr (elf-section-size section)))
+ (+ memaddr (elf-section-size section))
+ (add-symbols (object-symbols o) memaddr symtab))))
+ objects '() fileaddr memaddr symtab)
+ (values
+ (make-elf-segment* #:type type #:offset fileaddr
+ #:vaddr (if loadable? memaddr 0)
+ #:filesz (- fileend fileaddr)
+ #:memsz (if loadable? (- memend memaddr) 0)
+ #:flags flags #:align alignment)
+ (reverse objects)
+ symtab))))
+
+(define (process-reloc reloc bv file-offset mem-offset symtab endianness)
+ (let ((ent (vhash-assq (reloc-symbol reloc) symtab)))
+ (unless ent
+ (error "Undefined symbol" (reloc-symbol reloc)))
+ (let* ((file-loc (+ (reloc-loc reloc) file-offset))
+ (mem-loc (+ (reloc-loc reloc) mem-offset))
+ (addr (symbol-address (cdr ent))))
+ (case (reloc-type reloc)
+ ((rel32/4)
+ (let ((diff (- addr mem-loc)))
+ (unless (zero? (modulo diff 4))
+ (error "Bad offset" reloc symbol mem-offset))
+ (bytevector-s32-set! bv file-loc
+ (+ (/ diff 4) (reloc-addend reloc))
+ endianness)))
+ ((abs32/1)
+ (bytevector-u32-set! bv file-loc addr endianness))
+ ((abs64/1)
+ (bytevector-u64-set! bv file-loc addr endianness))
+ (else
+ (error "bad reloc type" reloc))))))
+
+(define (write-object bv o symtab endianness)
+ (let* ((section (object-section o))
+ (offset (elf-section-offset section))
+ (addr (elf-section-addr section))
+ (len (elf-section-size section))
+ (bytes (object-bv o))
+ (relocs (object-relocs o)))
+ (if (not (= (elf-section-type section) SHT_NOBITS))
+ (begin
+ (if (not (= (elf-section-size section) (bytevector-length bytes)))
+ (error "unexpected length" section bytes))
+ (bytevector-copy! bytes 0 bv offset len)
+ (for-each (lambda (reloc)
+ (process-reloc reloc bv offset addr symtab endianness))
+ relocs)))))
+
+(define (compute-sections-by-name seglists)
+ (let lp ((in (apply append (map cdr seglists)))
+ (n 1) (out '()) (shstrtab #f))
+ (if (null? in)
+ (fold1 (lambda (x tail)
+ (cond
+ ((false-if-exception
+ (string-table-ref shstrtab (car x)))
+ => (lambda (str) (acons str (cdr x) tail)))
+ (else tail)))
+ out '())
+ (let* ((section (object-section (car in)))
+ (bv (object-bv (car in)))
+ (name (elf-section-name section)))
+ (lp (cdr in) (1+ n) (acons name n out)
+ (or shstrtab
+ (and (= (elf-section-type section) SHT_STRTAB)
+ (equal? (false-if-exception
+ (string-table-ref bv name))
+ ".shstrtab")
+ bv)))))))
+
+;; Given a list of section-header/bytevector pairs, collate the sections
+;; into segments, allocate the segments, allocate the ELF bytevector,
+;; and write the segments into the bytevector, relocating as we go.
+;;
+(define* (link-elf objects #:key
+ (page-aligned? #t)
+ (endianness (target-endianness))
+ (word-size (target-word-size)))
+ (let* ((seglists (collate-objects-into-segments objects))
+ (sections-by-name (compute-sections-by-name seglists))
+ (nsegments (length seglists))
+ (nsections (1+ (length objects))) ;; 1+ for the first reserved entry.
+ (program-headers-offset (elf-header-len word-size))
+ (fileaddr (+ program-headers-offset
+ (* nsegments (elf-program-header-len word-size))))
+ (memaddr 0))
+ (receive (out fileend memend symtab _)
+ (fold5
+ (lambda (x out fileaddr memaddr symtab prev-flags)
+ (let ((type (caar x))
+ (flags (cdar x))
+ (objects (cdr x)))
+ (receive (segment objects symtab)
+ (alloc-segment type flags objects fileaddr memaddr symtab
+ (if (and page-aligned?
+ (not (= flags prev-flags)))
+ *page-size*
+ 8))
+ (values
+ (cons (cons segment objects) out)
+ (+ (elf-segment-offset segment) (elf-segment-filesz segment))
+ (if (zero? (elf-segment-memsz segment))
+ memaddr
+ (+ (elf-segment-vaddr segment)
+ (elf-segment-memsz segment)))
+ symtab
+ flags))))
+ seglists '() fileaddr memaddr vlist-null 0)
+ (let* ((out (reverse! out))
+ (section-table-offset (+ (align fileend word-size)))
+ (fileend (+ section-table-offset
+ (* nsections (elf-section-header-len word-size))))
+ (bv (make-bytevector fileend 0)))
+ (write-elf-header bv #:byte-order endianness #:word-size word-size
+ #:phoff program-headers-offset #:phnum nsegments
+ #:shoff section-table-offset #:shnum nsections
+ #:shstrndx (or (assoc-ref sections-by-name
".shstrtab")
+ SHN_UNDEF))
+ (write-elf-section-header bv section-table-offset
+ endianness word-size
+ (make-elf-section* #:type SHT_NULL #:flags 0
+ #:addralign 0))
+ (fold2 (lambda (x phidx shidx)
+ (write-elf-program-header
+ bv (+ program-headers-offset
+ (* (elf-program-header-len word-size) phidx))
+ endianness word-size (car x))
+ (values
+ (1+ phidx)
+ (fold1 (lambda (o shidx)
+ (write-object bv o symtab endianness)
+ (write-elf-section-header
+ bv (+ section-table-offset
+ (* (elf-section-header-len word-size) shidx))
+ endianness word-size (object-section o))
+ (1+ shidx))
+ (cdr x) shidx)))
+ out 0 1)
+ bv))))
diff --git a/module/system/vm/objcode.scm b/module/system/vm/objcode.scm
index 966f345..f939a55 100644
--- a/module/system/vm/objcode.scm
+++ b/module/system/vm/objcode.scm
@@ -1,6 +1,6 @@
;;; Guile VM object code
-;; Copyright (C) 2001, 2010 Free Software Foundation, Inc.
+;; Copyright (C) 2001, 2010, 2012 Free Software Foundation, Inc.
;;; This library is free software; you can redistribute it and/or
;;; modify it under the terms of the GNU Lesser General Public
@@ -21,7 +21,7 @@
(define-module (system vm objcode)
#:export (objcode? objcode-meta
bytecode->objcode objcode->bytecode
- load-objcode write-objcode
+ load-thunk-from-file load-thunk-from-memory
word-size byte-order))
(load-extension (string-append "libguile-" (effective-version))
diff --git a/test-suite/tests/asm-to-bytecode.test
b/test-suite/tests/asm-to-bytecode.test
index 52bc7e1..ddbe2ee 100644
--- a/test-suite/tests/asm-to-bytecode.test
+++ b/test-suite/tests/asm-to-bytecode.test
@@ -22,7 +22,9 @@
#:use-module (test-suite lib)
#:use-module (system vm instruction)
#:use-module (system vm objcode)
+ #:use-module (system vm elf)
#:use-module (system base target)
+ #:use-module (language objcode elf)
#:use-module (language assembly)
#:use-module (language assembly compile-bytecode))
@@ -167,20 +169,12 @@
(nop) (nop) (nop)
(nop) (nop))
#f)))
- (write-objcode (bytecode->objcode b) p)
- (let ((cookie (make-bytevector %objcode-cookie-size))
- (expected (format #f "GOOF----~a-~a"
- (cond ((eq? endian (endianness little))
- "LE")
- ((eq? endian (endianness big))
- "BE")
- (else
- (error "unknown endianness"
- endian)))
- word-size)))
- (bytevector-copy! (get-objcode) 0 cookie 0
- %objcode-cookie-size)
- (string=? (utf8->string cookie) expected)))))))))
+ (write-objcode (bytecode->objcode b (target-endianness)) p)
+ (let* ((bv (get-objcode)))
+ (and=> (parse-elf bv)
+ (lambda (elf)
+ (and (equal? (elf-byte-order elf) endian)
+ (equal? (elf-word-size elf) word-size))))))))))))
(with-test-prefix "cross-compilation"
@@ -202,7 +196,7 @@
(make-int8 77)
(return))
#f))
- (o (bytecode->objcode b)))
+ (o (bytecode->objcode b (target-endianness))))
(with-target "fcpu-unknown-gnu1.0"
(lambda ()
(write-objcode o p))))))))
hooks/post-receive
--
GNU Guile
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