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[Bug ld/1031] linker errors on Solaris 10 (symbol versioning?)
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From: |
ebotcazou at gcc dot gnu dot org |
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Subject: |
[Bug ld/1031] linker errors on Solaris 10 (symbol versioning?) |
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Date: |
14 Jul 2005 16:22:50 -0000 |
------- Additional Comments From ebotcazou at gcc dot gnu dot org 2005-07-14
16:22 -------
What has changed in libdl between Solaris 9 and Solaris 10 is that the stubs for
dlopen, dlclose, etc present on Solaris 9:
poog% /opt/build/eric/local/bin/objdump -T /usr/lib/libdl.so.1
/usr/lib/libdl.so.1: file format elf32-sparc
DYNAMIC SYMBOL TABLE:
00000714 w DF .text 00000008 SISCD_2.3 dlopen
0000072c g DF .text 00000008 SUNWprivate_1.1 _dlerror
0000071c w DF .text 00000008 SISCD_2.3 dlsym
000001b8 g DO .dynamic 00000000 Base _DYNAMIC
00000744 g DF .text 00000008 SUNWprivate_1.1 _dldump
0000070c g DF .text 00000008 SUNWprivate_1.1 _dlmopen
00000000 g DO *ABS* 00000000 SUNW_1.1 SUNW_1.1
00000704 g DF .text 00000008 SUNWprivate_1.1 _dlinfo
00000000 g DO *ABS* 00000000 SUNW_1.2 SUNW_1.2
0000072c w DF .text 00000008 SISCD_2.3 dlerror
0000070c w DF .text 00000008 SUNW_1.1 dlmopen
00000000 g DO *ABS* 00000000 SUNW_1.3 SUNW_1.3
00000000 g DO *ABS* 00000000 SUNW_0.7 SUNW_0.7
00000000 g DO *ABS* 00000000 SUNW_1.4 SUNW_1.4
00000000 g DO *ABS* 00000000 SUNW_0.8 SUNW_0.8
00000744 w DF .text 00000008 SUNW_1.1 dldump
00000734 g DF .text 00000008 SUNWprivate_1.1 _dladdr
00000724 w DF .text 00000008 SISCD_2.3 dlclose
00000704 w DF .text 00000008 SUNW_1.1 dlinfo
00000000 g DO *ABS* 00000000 SUNWprivate_1.1 SUNWprivate_1.1
0000073c g DF .text 00000008 SUNWprivate_1.1 _dladdr1
00000000 g DO *ABS* 00000000 Base _edata
00000724 g DF .text 00000008 SUNWprivate_1.1 _dlclose
00000714 g DF .text 00000008 SUNWprivate_1.1 _dlopen
00000766 g DO .bss 00000000 Base _etext
0000074c g DF .text 00000008 SUNWprivate_1.1 _ld_concurrency
00000754 g DF .text 00000008 SUNWprivate_1.1 _ld_libc
00000000 g DO *ABS* 00000000 SISCD_2.3 SISCD_2.3
00000734 w DF .text 00000008 SUNW_0.8 dladdr
0000076c g DO .bss 00000000 Base _end
0000071c g DF .text 00000008 SUNWprivate_1.1 _dlsym
0000073c w DF .text 00000008 SUNW_1.4 dladdr1
00000000 g DO *ABS* 00000000 Base _PROCEDURE_LINKAGE_TABLE_
have been turned into mere dummy symbols on Solaris 10:
hikaru% /opt/build/eric/local/bin/objdump -T /usr/lib/libdl.so.1
/usr/lib/libdl.so.1: file format elf32-sparc
DYNAMIC SYMBOL TABLE:
00000000 g DF *ABS* 00000000 SISCD_2.3 dlopen
00000000 g DF *ABS* 00000000 SUNWprivate_1.1 _dlerror
00000000 g DF *ABS* 00000000 SISCD_2.3 dlsym
00000094 g DO .dynamic 00000000 Base _DYNAMIC
00000000 g DF *ABS* 00000000 SUNWprivate_1.1 _dldump
00000000 g DF *ABS* 00000000 SUNWprivate_1.1 _dlmopen
00000000 g DF *ABS* 00000000 SUNWprivate_1.1 _dlinfo
00000000 g DO *ABS* 00000000 SUNW_1.1 SUNW_1.1
00000000 g DO *ABS* 00000000 SUNW_1.2 SUNW_1.2
00000000 g DF *ABS* 00000000 SISCD_2.3 dlerror
00000000 g DF *ABS* 00000000 SUNW_1.1 dlmopen
00000000 g DO *ABS* 00000000 SUNW_1.3 SUNW_1.3
00000000 g DO *ABS* 00000000 SUNW_1.4 SUNW_1.4
00000000 g DO *ABS* 00000000 SUNW_0.7 SUNW_0.7
00000000 g DF *ABS* 00000000 SUNW_1.1 dldump
00000000 g DO *ABS* 00000000 SUNW_0.8 SUNW_0.8
00000000 g DF *ABS* 00000000 SISCD_2.3 dlclose
00000000 g DF *ABS* 00000000 SUNW_1.1 dlinfo
00000000 g DF *ABS* 00000000 SUNWprivate_1.1 _dladdr
00000000 g DO *ABS* 00000000 SUNWprivate_1.1 SUNWprivate_1.1
00000000 g DF *ABS* 00000000 SUNWprivate_1.1 _dladdr1
00000000 g DO *ABS* 00000000 Base _edata
00000000 g DF *ABS* 00000000 SUNWprivate_1.1 _dlopen
00000000 g DF *ABS* 00000000 SUNWprivate_1.1 _dlclose
000006c3 g DO .bss 00000000 Base _etext
00000000 g DF *ABS* 00000000 SUNWprivate_1.1 _ld_concurrency
00000000 g DF *ABS* 00000000 SUNWprivate_1.1 _ld_libc
00000000 g DO *ABS* 00000000 SISCD_2.3 SISCD_2.3
000006c3 g DO .bss 00000000 Base _end
00000000 g DF *ABS* 00000000 SUNW_0.8 dladdr
00000000 g DF *ABS* 00000000 SUNWprivate_1.1 _dlsym
00000000 g DF *ABS* 00000000 SUNW_1.4 dladdr1
00000000 g DO *ABS* 00000000 Base _PROCEDURE_LINKAGE_TABLE_
The key here is the section of the symbols: it is .text on Solaris 9 and the
absolute section on Solaris 10. This runs afoul of the following FIXME in
elf_link_add_object_symbols:
/* If this is a hidden symbol, or if it is not version
1, we append the version name to the symbol name.
However, we do not modify a non-hidden absolute
symbol, because it might be the version symbol
itself. FIXME: What if it isn't? */
if ((iver.vs_vers & VERSYM_HIDDEN) != 0
|| (vernum > 1 && ! bfd_is_abs_section (sec)))
The following patch lets me build OpenSSL on SPARC/Solaris 10:
Index: elflink.c
===================================================================
RCS file: /cvs/src/src/bfd/elflink.c,v
retrieving revision 1.136.2.3
diff -u -p -r1.136.2.3 elflink.c
--- elflink.c 27 Apr 2005 16:47:24 -0000 1.136.2.3
+++ elflink.c 14 Jul 2005 16:21:05 -0000
@@ -3683,11 +3683,12 @@ elf_link_add_object_symbols (bfd *abfd,
/* If this is a hidden symbol, or if it is not version
1, we append the version name to the symbol name.
- However, we do not modify a non-hidden absolute
- symbol, because it might be the version symbol
- itself. FIXME: What if it isn't? */
+ However, we do not modify a non-hidden absolute symbol
+ if it is not a function, because it might be the version
+ symbol itself. FIXME: What if it isn't? */
if ((iver.vs_vers & VERSYM_HIDDEN) != 0
- || (vernum > 1 && ! bfd_is_abs_section (sec)))
+ || (vernum > 1 && (! bfd_is_abs_section (sec)
+ || ELF_ST_TYPE (isym->st_info) == STT_FUNC)))
{
const char *verstr;
size_t namelen, verlen, newlen;
--
http://sources.redhat.com/bugzilla/show_bug.cgi?id=1031
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