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Hey :) |
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|
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just asking before i open a bug: i'm having a reproducible scanelf crash |
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while building perl: |
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|
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(gdb) r -v -qyRAF '%T %p' |
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var/tmp/portage/dev-lang/perl-5.8.8-r6/work/perl-5.8.8/ext/SDBM_File/sdbm/libsdbm.a |
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Starting program: /tools/gentoo/mduft/toolsbase-2010.0/usr/bin/scanelf |
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-v -qyRAF '%T %p' |
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var/tmp/portage/dev-lang/perl-5.8.8-r6/work/perl-5.8.8/ext/SDBM_File/sdbm/libsdbm.a |
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warning: Temporarily disabling breakpoints for unloaded shared library |
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"/usr/lib/ld.so.1" |
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|
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Program received signal SIGSEGV, Segmentation fault. |
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0x00013148 in readelf_buffer (filename=0x46408 |
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"var/tmp/portage/dev-lang/perl-5.8.8-r6/work/perl-5.8.8/ext/SDBM_File/sdbm/libsdbm.a:sdbm.o", |
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buffer=0xff3a01ce "\177ELF\001\002\001", |
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buffer_len=7152) at paxelf.c:528 |
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528 READELF_HEADER(32) |
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(gdb) bt |
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#0 0x00013148 in readelf_buffer (filename=0x46408 |
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"var/tmp/portage/dev-lang/perl-5.8.8-r6/work/perl-5.8.8/ext/SDBM_File/sdbm/libsdbm.a:sdbm.o", |
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buffer=0xff3a01ce "\177ELF\001\002\001", |
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buffer_len=7152) at paxelf.c:528 |
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#1 0x0002db94 in scanelf_archive (filename=0xffbfedbd |
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"var/tmp/portage/dev-lang/perl-5.8.8-r6/work/perl-5.8.8/ext/SDBM_File/sdbm/libsdbm.a", |
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fd=6, len=11926) at scanelf.c:1339 |
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#2 0x0002de18 in scanelf_file (filename=0xffbfedbd |
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"var/tmp/portage/dev-lang/perl-5.8.8-r6/work/perl-5.8.8/ext/SDBM_File/sdbm/libsdbm.a", |
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st_cache=0xffbfe9dc) at scanelf.c:1377 |
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#3 0x0002dee4 in scanelf_dir (path=0xffbfedbd |
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"var/tmp/portage/dev-lang/perl-5.8.8-r6/work/perl-5.8.8/ext/SDBM_File/sdbm/libsdbm.a") |
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at scanelf.c:1401 |
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#4 0x0003041c in parseargs (argc=5, argv=0xffbfebfc) at scanelf.c:1959 |
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#5 0x00030700 in main (argc=5, argv=0xffbfebfc) at scanelf.c:2028 |
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(gdb) lis |
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523 if (invalid > 1) \ |
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524 warn("%s: Invalid section header info |
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(%i)", filename, invalid); \ |
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525 if (invalid) \ |
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526 elf->shdr = NULL; \ |
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527 } |
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528 READELF_HEADER(32) |
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529 READELF_HEADER(64) |
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530 /* { char *p; strncpy(elf->basename, (p = |
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strrchr(filename, '/')) == NULL ? "?" : p+1 , sizeof(elf->basename)); } */ |
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531 |
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532 return elf; |
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|
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seems like either scanelf has a bug, or that perl archive is damaged...? |
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from what i see in gdb, is the buffer contents what it is expected to be |
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("\177ELF\001\002\001")? i think it's off by one, shouldn't ELF be the |
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first bytes (i don't know ELF that well, just PE/COFF, so i might be |
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plain wrong here ;))? |
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|
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Cheers, Markus |
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