Thanks Ian, Yes problem that sweep () function shows the argument of CVMgenMarkCompactCollect () function. sweep() function got inlined. So I just request is there any patch available to fix this problem ? Thanks On Mon, Nov 14, 2011 at 12:20 PM, Ian Lance Taylor <iant@xxxxxxxxxx> wrote: > naveen yadav <yad.naveen@xxxxxxxxx> writes: > >> 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) > > Looking at the code, it's perfectly obvious that gdb is reporting the > arguments to sweep incorrectly. The sweep function takes three > arugments: thisGen, base, and top. It is called only from > CVMgenMarkCompactCollect, and that function takes four arguments, gen, > ee, numBytes, and gcOpts. > > Clearly the parameters to sweep are being reported incorrectly. I don't > think you really needed me to tell you that. I don't know where the bug > is, but my guess would be that gcc 4.4.1 is not generating correct debug > info for inlined functions. > > Ian > > >> >> ...... >> >> If you need more detail pls let me know.. >> Thanks. >> >> On Fri, Nov 11, 2011 at 10:01 PM, Ian Lance Taylor <iant@xxxxxxxxxx> wrote: >>> naveen yadav <yad.naveen@xxxxxxxxx> 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 >>> >
