Re: Issue with GDB 7.0 on MIPS(gcc 4.4.1)

naveen yadav
2011-11-14T05:14:55Z

Hi Ian,

My GCC version 4.4.1. and here is source code.

http://gingacdn.lavid.ufpb.br/projects/ginga-j/repository/revisions/7e233c1906624b0e01698415987aada3fd8c3fe4/entry/gingaj/jvm/src/share/javavm/runtime/gc/generational/gen_markcompact.c

and here is backtrace.

mips-gdb> bt
sweep (gen=0x5d5f508, ee=0x5c4300d0, numBytes=4294967295,
gcOpts=0x5c3408f8) #1
CVMgenMarkCompactCollect (gen=0x5d5f508, ee=0x5c4300d0,
numBytes=4294967295, gcOpts=0x5c3408f8)

......

If you need more detail pls let me know..
Thanks.

On Fri, Nov 11, 2011 at 10:01 PM, Ian Lance Taylor <iant@google.com> wrote:
> naveen yadav <yad.naveen@gmail.com> writes:
>
>> I am running one application and it generate core dump. When I run bt .
>> (gdb) bt
>> #0  sweep (gn=0x5d5f58, ef=0x5c43000, Bytes=429496729, gcOs=0x5c3408f)
>> #1  CompactCollect (gn=0x5d5f58, ef=0x5c43000, Bytes=429496729, gcOs=0x5c3408f)
>> ...
>>
>> In above case
>> we got crash in wepp().
>> CompactCollect () is main function and wepp() is another function
>> which got called from CompactCollect ().
>>
>> When I check the assembly wepp() become inline.
>> So i got bit surprise when i check that function parameter;s for both
>> wepp() and CompactCollect () are same.
>>
>> So is it correct behaviour ? that calling and calle have same parameter
>
> Without any information about the source code, I don't see how we can
> tell whether having the same parameters is correct behaviour or not.
>
> That said, it is certainly possible that the arguments of the inlined
> function are not being displayed correctly.  Mainline gcc has gotten
> quite a bit better about debug info for inlined functions and in general
> for avoiding incorrect display of variables in optimized code.
>
> Ian
>