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Date: Thu, 30 Sep 2010 16:25:07 +0200
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Subject: Re: gcc-4.5 + gdb dwarf problems
From: Reini Urban <rurban AT x-ray DOT at>
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2010/9/30 Reini Urban:
> I think I've found an issue with the new gcc-4.5 with latest gdb.

> Program received signal SIGSEGV, Segmentation fault.
> 0x0068391b in Perl_pad_undef (cv=3D0x24a3d60) at pad.c:138
> 138 =A0 =A0 =A0 =A0 PERL_ARGS_ASSERT_PAD_PEG;
>
> If linked to the dll the cv argument is missing.
>
> And the correct src line is pad.c:256, not pad.c:138
> =A0objdump -S -gl ccode27_o2.exe|^egrep -7 ^Perl_pad_undef

I've crosschecked with mingw gdb-7.1 and the linenumber
looks better there.

Just the arguments for functions inside the dll are also not displayed:

Program received signal SIGSEGV, Segmentation fault.
0x54a4d00b in Perl_pad_undef ()
   from D:\cygwin\usr\local\bin\cygperl5_13_5d-nt AT 1fdb04e0 DOT dll

vs.
Program received signal SIGSEGV, Segmentation fault.
0x00552f6b in Perl_pad_undef (cv=3D0x2323d60) at pad.c:290
290                     && *SvPVX_const(namesv) =3D=3D '&')

--=20
Reini Urban
http://phpwiki.org/=A0 =A0 =A0 =A0 =A0=A0 http://murbreak.at/

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