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x86_64 gdb and objdump
- From: "Srinivas Murthy" <codevana at gmail dot com>
- To: gdb at sourceware dot org
- Date: Mon, 2 Jul 2007 12:14:43 -0700
- Subject: x86_64 gdb and objdump
From a core dump file, I see that with gdb I get a "Cannot access
memory at address xx" msg but using objdump, I can see the contents of
the memory location on the core file.
Any ideas what is going wrong?
Thanks.
# gdb test core_dir/core.test.30235
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This GDB was configured as "x86_64-unknown-linux-gnu"...
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `./test'.
Program terminated with signal 11, Segmentation fault.
#0 0x00000000004004f5 in bar () at test.c:10
10 test.c: No such file or directory.
in test.c
(gdb) bt
#0 0x00000000004004f5 in bar () at test.c:10
Cannot access memory at address 0x7fbfffee98
However, objdump shows that there is some valid content at the location:
# objdump -D /tmp/core.test.30235 |less |grep 7fbfffee98
7fbfffe95f: 00 08 add %cl,(%rax)