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help: dumper 1.10 not giving expected stack trace in gdb
- From: Robert Baruch <autophile at zoominternet dot net>
- To: cygwin at cygwin dot com
- Date: Tue, 30 Dec 2003 16:38:09 -0500
- Subject: help: dumper 1.10 not giving expected stack trace in gdb
Hi all,
I've compiled a simple C program, t.c, via gcc-3.3.1, with -g:
#include <stdio.h>
int main(void)
{
abort();
}
I've set CYGWIN='error_start=C:\cygwin\bin\dumper.exe'. So when I run
the program, abort causes dumper to run, and I end up with a
t.exe.stackdump file and a t.exe.core file.
The stackdump file contains this:
Stack trace:
Frame Function Args
0022FD08 6106F232 (000009E4, 00000006, 0022FD78, 0040120D)
0022FD58 6106F3B0 (000009E4, 00000006, 0022FDA8, 6106F965)
0022FD68 6106F2FC (00000006, 00000006, 0022FD98, 61003A31)
0022FDA8 6106F965 (0022FDC0, 610850F8, 610F063C, 00000000)
0022FDC0 00401073 (00000001, 0A041AE8, 0A040330, 61062452)
0022FF40 61005018 (610CFEE0, FFFFFFFE, 000007E4, 610CFE04)
0022FF90 610052ED (00000000, 00000000, 00000001, 00000000)
0022FFB0 00401401 (00401050, 037F0009, 0022FFF0, 77E814C7)
0022FFC0 0040103C (77F58A3A, 00000000, 7FFDF000, F359BCF0)
0022FFF0 77E814C7 (00401000, 00000000, 78746341, 00000020)
End of stack trace
However, when I run gdb 2003-09-20-cvs (cygwin-special) on the core
file, I get this:
$ gdb --core=t.exe.core
GNU gdb 2003-09-20-cvs (cygwin-special)
Copyright 2003 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i686-pc-cygwin".
#0 0x7ffe0304 in ?? ()
(gdb) where
#0 0x7ffe0304 in ?? ()
#1 0x77f5c534 in ntdll!ZwWaitForSingleObject ()
#2 0x77e7a62d in WaitForSingleObjectEx ()
#3 0x00000778 in ?? ()
That doesn't look anything like the stack dump shown in the stackdump file.
What am I missing? How can I get gdb to display the proper stack trace?
I appreciate any help you can give.
Thanks,
--Rob
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