[Bug binutils/29720] New: objdump -S crashes if build-id is missing

[mliska at suse dot cz]

https://sourceware.org/bugzilla/show_bug.cgi?id=29720

            Bug ID: 29720
           Summary: objdump -S crashes if build-id is missing
           Product: binutils
           Version: 2.40 (HEAD)
            Status: NEW
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: mliska at suse dot cz
                CC: amerey at redhat dot com
  Target Milestone: ---

As a consequence of the implement PR29075, I see the following crash:

$ gcc a.c -Wl,--build-id=none
$ ./binutils/objdump -S ~/Programming/testcases/a.out

/home/marxin/Programming/testcases/a.out:     file format elf64-x86-64


Disassembly of section .init:

0000000000401000 <_init>:
Segmentation fault (core dumped)

$ Program received signal SIGSEGV, Segmentation fault.
__strlen_avx2 () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:76
76              VPCMPEQ (%rdi), %ymm0, %ymm1
(gdb) bt
#0  __strlen_avx2 () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:76
#1  0x00007ffff7edbd18 in debuginfod_query_server (c=c@entry=0x6930a0,
build_id=build_id@entry=0x0, build_id_len=build_id_len@entry=0,
type=type@entry=0x7ffff7ede3f8 "source", filename=filename@entry=0x688780
"/home/abuild/rpmbuild/BUILD/glibc-2.36/csu/../sysdeps/x86_64/crti.S",
path=path@entry=0x0) at
/usr/src/debug/elfutils-debuginfod-0.187-6.1.x86_64/debuginfod/debuginfod-client.c:644
#2  0x00007ffff7edd212 in debuginfod_find_source (client=client@entry=0x6930a0,
build_id=build_id@entry=0x0, build_id_len=build_id_len@entry=0,
filename=filename@entry=0x688780
"/home/abuild/rpmbuild/BUILD/glibc-2.36/csu/../sysdeps/x86_64/crti.S",
path=path@entry=0x0) at
/usr/src/debug/elfutils-debuginfod-0.187-6.1.x86_64/debuginfod/debuginfod-client.c:1582
#3  0x000000000040b475 in slurp_file (abfd=0x6930a0, fst_return=0x7fffffffd070,
size_return=0x689730, fn=0x688780
"/home/abuild/rpmbuild/BUILD/glibc-2.36/csu/../sysdeps/x86_64/crti.S") at
../../binutils/objdump.c:1890
#4  try_print_file_open (origname=origname@entry=0x688780
"/home/abuild/rpmbuild/BUILD/glibc-2.36/csu/../sysdeps/x86_64/crti.S",
modname=modname@entry=0x688780
"/home/abuild/rpmbuild/BUILD/glibc-2.36/csu/../sysdeps/x86_64/crti.S",
fst_return=fst_return@entry=0x7fffffffd070, abfd=abfd@entry=0x666180) at
../../binutils/objdump.c:1998
#5  0x000000000040da71 in update_source_path (abfd=0x666180,
filename=<optimized out>) at ../../binutils/objdump.c:2028
#6  show_line (addr_offset=0, section=0x669118, abfd=0x666180) at
../../binutils/objdump.c:2273
#7  disassemble_bytes (relppend=0x0, relppp=<synthetic pointer>, rel_offset=0,
stop_offset=27, start_offset=<optimized out>, data=0x67ccd0
"\363\017\036\372H\203\354\bH\213\005\341/", insns=<optimized out>,
disassemble_fn=0x44b6f0 <print_insn_i386>, inf=<optimized out>) at
../../binutils/objdump.c:3315
#8  disassemble_section (abfd=0x666180, section=<optimized out>, inf=<optimized
out>) at ../../binutils/objdump.c:4008
#9  0x000000000047316f in bfd_map_over_sections (abfd=abfd@entry=0x666180,
operation=operation@entry=0x40ba70 <disassemble_section>,
user_storage=user_storage@entry=0x7fffffffd230) at ../../bfd/section.c:1373
#10 0x00000000004087c5 in disassemble_data (abfd=abfd@entry=0x666180) at
../../binutils/objdump.c:4152
#11 0x00000000004097dd in dump_bfd (abfd=abfd@entry=0x666180,
is_mainfile=is_mainfile@entry=true) at ../../binutils/objdump.c:5564
#12 0x000000000040a7ed in display_object_bfd (abfd=0x666180) at
../../binutils/objdump.c:5627
#13 display_any_bfd (file=0x666180, level=0) at ../../binutils/objdump.c:5713
#14 0x000000000040a944 in display_file (filename=0x7fffffffdbba
"/home/marxin/Programming/testcases/a.out", target=<optimized out>,
last_file=<optimized out>) at ../../binutils/objdump.c:5734
#15 0x000000000040533d in main (argc=<optimized out>, argv=<optimized out>) at
../../binutils/objdump.c:6130
(gdb) p build_id
$1 = (const unsigned char *) 0x0

-- 
You are receiving this mail because:
You are on the CC list for the bug.