Bug 623687

Created attachment 438453 [details]
File: backtrace

I have a reproducible testcase for something that looks very similar on rawhide

$ cat > bug623876.l <<FLEXEOF
%%
a { ECHO; }   
b { REJECT; }
c { yymore (); }
d { yyless (1); }
e { yyless (input () != 0); }
f { unput (yytext[0]); }
. { BEGIN INITIAL; }
%%  
extern char *yytext;
int
main (void)
{   
  return ! yylex () + ! yywrap ();
} 
FLEXEOF
$ flex bug623876.l
$ gcc -o bug623876 -g -O2   lex.yy.c
...kaboom...

The reproducible testcase really helped.  I have now tracked down the bug and created a patch to fix it.  Binutils rpms binutils-2.20.51.0.2-23.fc13 and binutils-2.20.51.0.10-2.fc15 now contain this fix.

Cheers
  Nick

The fix may be incorrect. The real bug may be:

http://www.sourceware.org/bugzilla/show_bug.cgi?id=11817

and it has been fixed in binutils 2.20.51.0.11.

(In reply to comment #2)
> I have a reproducible testcase for something that looks very similar on rawhide
> 
> $ cat > bug623876.l <<FLEXEOF
> %%
> a { ECHO; }   
> b { REJECT; }
> c { yymore (); }
> d { yyless (1); }
> e { yyless (input () != 0); }
> f { unput (yytext[0]); }
> . { BEGIN INITIAL; }
> %%  
> extern char *yytext;
> int
> main (void)
> {   
>   return ! yylex () + ! yywrap ();
> } 
> FLEXEOF
> $ flex bug623876.l
> $ gcc -o bug623876 -g -O2   lex.yy.c
> ...kaboom...

I can't reproduce it with binutils-2.20.51.0.2-20.fc13.x86_64. I got

[hjl@gnu-6 merge-3]$ cat bug623876.l
%%
a { ECHO; }   
b { REJECT; }
c { yymore (); }
d { yyless (1); }
e { yyless (input () != 0); }
f { unput (yytext[0]); }
. { BEGIN INITIAL; }
%%  
extern char *yytext;
int
main (void)
{   
  return ! yylex () + ! yywrap ();
} 
[hjl@gnu-6 merge-3]$ flex bug623876.l
[hjl@gnu-6 merge-3]$ PATH=/usr/bin:$PATH gcc -o bug623876 -g -O2   lex.yy.c
/tmp/ccsABDME.o: In function `input':
/export/home/hjl/bugs/binutils/merge-3/lex.yy.c:1168: undefined reference to `yywrap'
/tmp/ccsABDME.o: In function `yylex':
/export/home/hjl/bugs/binutils/merge-3/lex.yy.c:867: undefined reference to `yywrap'
/tmp/ccsABDME.o: In function `main':
/export/home/hjl/bugs/binutils/merge-3/bug623876.l:15: undefined reference to `yywrap'
collect2: ld returned 1 exit status
[hjl@gnu-6 merge-3]$

(In reply to comment #2)
> I have a reproducible testcase for something that looks very similar on rawhide
> 
> $ cat > bug623876.l <<FLEXEOF
> %%
> a { ECHO; }   
> b { REJECT; }
> c { yymore (); }
> d { yyless (1); }
> e { yyless (input () != 0); }
> f { unput (yytext[0]); }
> . { BEGIN INITIAL; }
> %%  
> extern char *yytext;
> int
> main (void)
> {   
>   return ! yylex () + ! yywrap ();
> } 
> FLEXEOF
> $ flex bug623876.l
> $ gcc -o bug623876 -g -O2   lex.yy.c
> ...kaboom...

This bug is

http://www.sourceware.org/bugzilla/show_bug.cgi?id=11817

and fixed in 2.20.51.0.11.

(In reply to comment #0)
> abrt 1.1.1 detected a crash.
> 
> architecture: x86_64
> Attached file: backtrace
> cmdline: /usr/bin/ld --no-add-needed --eh-frame-hdr --build-id -m elf_x86_64
> --hash-style=gnu -shared -o fil_rgb.so
> /usr/lib/gcc/x86_64-redhat-linux/4.4.4/../../../../lib64/crti.o
> /usr/lib/gcc/x86_64-redhat-linux/4.4.4/crtbeginS.o
> -L/usr/lib/gcc/x86_64-redhat-linux/4.4.4
> -L/usr/lib/gcc/x86_64-redhat-linux/4.4.4
> -L/usr/lib/gcc/x86_64-redhat-linux/4.4.4/../../../../lib64 -L/lib/../lib64
> -L/usr/lib/../lib64 -L/usr/lib/gcc/x86_64-redhat-linux/4.4.4/../../.. fil_rgb.o
> /home/agoode/diamond-git/snapfind/src/target/lib/libsfimage.a
> /opt/diamond-filter-kit/lib/libtiff.a /opt/diamond-filter-kit/lib/libjpeg.a
> /opt/diamond-filter-kit/lib/libz.a --gc-sections -lstdc++ -lm -lgcc_s -lc
> -lgcc_s /usr/lib/gcc/x86_64-redhat-linux/4.4.4/crtendS.o
> /usr/lib/gcc/x86_64-redhat-linux/4.4.4/../../../../lib64/crtn.o
> component: binutils
> crash_function: mempcpy
> executable: /usr/bin/ld.bfd
> global_uuid: c36bc5711331224d5e3988cde7c68f95223ebcf2
> kernel: 2.6.33.6-147.fc13.x86_64
> package: binutils-2.20.51.0.2-20.fc13
> rating: 4
> reason: Process /usr/bin/ld.bfd was killed by signal 11 (SIGSEGV)
> release: Fedora release 13 (Goddard)
> How to reproduce: 1. Try to incorrectly link 64-bit and 32-bit stuff together.
> 
> comment
> -----
> g++ -o fil_rgb.so fil_rgb.o -shared
> /home/agoode/diamond-git/snapfind/src/target/lib/libsfimage.a
> /opt/diamond-filter-kit/lib/libtiff.a /opt/diamond-filter-kit/lib/libjpeg.a
> /opt/diamond-filter-kit/lib/libz.a   -Wl,--gc-sections
> collect2: ld terminated with signal 11 [Segmentation fault], core dumped
> /usr/bin/ld: i386 architecture of input file
> `/opt/diamond-filter-kit/lib/libtiff.a(tif_close.o)' is incompatible with
> i386:x86-64 output

Can you provide a complete testcase? I only need linker inputs which
aren't available on Fedora 13.

By linker inputs, you would like the .o and .a files?

(In reply to comment #8)
> By linker inputs, you would like the .o and .a files?

Yes.

Created attachment 440004 [details]
testcase

Thanks for the testcase. The real bug is linker tries to
generate a DSO even when inputs are incompatibles:

/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_close.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_dir.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_dirinfo.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_dirread.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_error.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_flush.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_getimage.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_open.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_read.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_strip.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_swab.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_tile.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_unix.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_warning.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_write.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_aux.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_color.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_compress.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_dirwrite.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_codec.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_dumpmode.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_fax3.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_fax3sm.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_luv.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_lzw.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_next.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_packbits.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_pixarlog.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_predict.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_thunder.o)' is incompatible with i386:x86-64 output
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: i386 architecture of input file `libtiff.a(tif_zip.o)' is incompatible with i386:x86-64 output
libtiff.a(tif_pixarlog.o): In function `.L108':
(.text.PixarLogVSetField+0x108): undefined reference to `deflateParams'
libtiff.a(tif_pixarlog.o): In function `PixarLogCleanup':
(.text.PixarLogCleanup+0xfe): undefined reference to `inflateEnd'
libtiff.a(tif_pixarlog.o): In function `PixarLogCleanup':
(.text.PixarLogCleanup+0x10b): undefined reference to `deflateEnd'
libtiff.a(tif_pixarlog.o): In function `PixarLogPostEncode':
(.text.PixarLogPostEncode+0x3f): undefined reference to `deflate'
libtiff.a(tif_pixarlog.o): In function `.L160':
(.text.PixarLogEncode+0x62c): undefined reference to `deflate'
libtiff.a(tif_pixarlog.o): In function `PixarLogPreEncode':
(.text.PixarLogPreEncode+0x38): undefined reference to `deflateReset'
libtiff.a(tif_pixarlog.o): In function `.L485':
(.text.PixarLogDecode+0x101): undefined reference to `inflate'
libtiff.a(tif_pixarlog.o): In function `.L485':
(.text.PixarLogDecode+0x159): undefined reference to `inflateSync'
libtiff.a(tif_pixarlog.o): In function `PixarLogPreDecode':
(.text.PixarLogPreDecode+0x38): undefined reference to `inflateReset'
libtiff.a(tif_pixarlog.o): In function `PixarLogSetupDecode':
(.text.PixarLogSetupDecode+0xf0): undefined reference to `inflateInit_'
libtiff.a(tif_pixarlog.o): In function `PixarLogSetupEncode':
(.text.PixarLogSetupEncode+0xee): undefined reference to `deflateInit_'
libtiff.a(tif_zip.o): In function `ZIPCleanup':
(.text.ZIPCleanup+0x87): undefined reference to `inflateEnd'
libtiff.a(tif_zip.o): In function `ZIPCleanup':
(.text.ZIPCleanup+0x9b): undefined reference to `deflateEnd'
libtiff.a(tif_zip.o): In function `ZIPPostEncode':
(.text.ZIPPostEncode+0x3f): undefined reference to `deflate'
libtiff.a(tif_zip.o): In function `ZIPEncode':
(.text.ZIPEncode+0x59): undefined reference to `deflate'
libtiff.a(tif_zip.o): In function `ZIPPreEncode':
(.text.ZIPPreEncode+0x4f): undefined reference to `deflateReset'
libtiff.a(tif_zip.o): In function `ZIPSetupEncode':
(.text.ZIPSetupEncode+0x51): undefined reference to `deflateInit_'
libtiff.a(tif_zip.o): In function `ZIPSetupEncode':
(.text.ZIPSetupEncode+0x74): undefined reference to `inflateEnd'
libtiff.a(tif_zip.o): In function `ZIPDecode':
(.text.ZIPDecode+0x5b): undefined reference to `inflate'
libtiff.a(tif_zip.o): In function `ZIPDecode':
(.text.ZIPDecode+0xa9): undefined reference to `inflateSync'
libtiff.a(tif_zip.o): In function `ZIPPreDecode':
(.text.ZIPPreDecode+0x4f): undefined reference to `inflateReset'
libtiff.a(tif_zip.o): In function `ZIPSetupDecode':
(.text.ZIPSetupDecode+0x4a): undefined reference to `inflateInit_'
libtiff.a(tif_zip.o): In function `ZIPSetupDecode':
(.text.ZIPSetupDecode+0x6c): undefined reference to `deflateEnd'
libtiff.a(tif_zip.o): In function `ZIPVSetField':
(.text.ZIPVSetField+0x75): undefined reference to `deflateParams'
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: BFD version 2.20.51.0.2-22.0.f13 20091009 assertion fail elf64-x86-64.c:3914
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: BFD version 2.20.51.0.2-22.0.f13 20091009 assertion fail elf64-x86-64.c:3914
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: BFD version 2.20.51.0.2-22.0.f13 20091009 assertion fail elf64-x86-64.c:3914
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: BFD version 2.20.51.0.2-22.0.f13 20091009 assertion fail elf64-x86-64.c:3914
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: BFD version 2.20.51.0.2-22.0.f13 20091009 assertion fail elf64-x86-64.c:3914
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: BFD version 2.20.51.0.2-22.0.f13 20091009 assertion fail elf64-x86-64.c:3914
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: BFD version 2.20.51.0.2-22.0.f13 20091009 assertion fail elf64-x86-64.c:3914
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: BFD version 2.20.51.0.2-22.0.f13 20091009 assertion fail elf64-x86-64.c:3914
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: BFD version 2.20.51.0.2-22.0.f13 20091009 assertion fail elf64-x86-64.c:3914
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: BFD version 2.20.51.0.2-22.0.f13 20091009 assertion fail elf64-x86-64.c:3914
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: BFD version 2.20.51.0.2-22.0.f13 20091009 assertion fail elf64-x86-64.c:3914
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: BFD version 2.20.51.0.2-22.0.f13 20091009 assertion fail elf64-x86-64.c:3914
/export/home/hjl/bugs/binutils/merge-3/bz623687/ld: BFD version 2.20.51.0.2-22.0.f13 20091009 assertion fail elf64-x86-64.c:3914

Program received signal SIGSEGV, Segmentation fault.
0x0000003e132834d2 in __mempcpy_sse2 () from /lib64/libc.so.6
(gdb) bt
#0  0x0000003e132834d2 in __mempcpy_sse2 () from /lib64/libc.so.6
#1  0x0000003e13273e7e in _IO_default_xsputn_internal () from /lib64/libc.so.6
#2  0x0000003e13270fc2 in _IO_new_file_xsputn () from /lib64/libc.so.6
#3  0x0000003e132673bd in fwrite () from /lib64/libc.so.6
#4  0x00000000004367cf in cache_bwrite (abfd=0x7aa6b0, where=0x0, nbytes=336)
    at cache.c:352
#5  0x0000000000435bd3 in bfd_bwrite (ptr=0x0, size=336, abfd=0x7aa6b0)
    at bfdio.c:252
#6  0x00000000004756ab in _bfd_elf_set_section_contents (abfd=0x7aa6b0, 
    section=0x10368c8, location=0x0, offset=0, count=336) at elf.c:7402
#7  0x0000000000441775 in bfd_set_section_contents (abfd=0x7aa6b0, 
    section=0x10368c8, location=0x0, offset=0, count=336) at section.c:1445
#8  0x0000000000492080 in bfd_elf_final_link (abfd=0x7aa6b0, info=0x796580)
    at elflink.c:11179
#9  0x000000000041cf53 in ldwrite () at ldwrite.c:568
#10 0x000000000041a3bf in main (argc=30, argv=0x7fffffffdc28) at ./ldmain.c:490
(gdb)

This patch

http://sourceware.org/ml/binutils-cvs/2010-02/msg00018.html

fixed the crash. Now we get 

libtiff.a: could not read symbols: File in wrong format

I am not sure if it is the correct behavior.

If take a look at

http://sourceware.org/ml/binutils/2010-02/msg00062.html

it seems to fix exactly the original problem.

Yes, I think this is the correct behavior. Or at least, what I would expect.

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