Hi, i checked the environment vars, they are all set right, but gdb complains about DumpStack? do i have anything extra to make it work?
(gdb) call SOS("DumpStack") SOS: Command 'DumpStack' not found. thanks archana On Wed, 7 Jul 2004, Barry Bond wrote: > SOS does work on FreeBSD - you invoke it differently than you do on Windows though. > From the GDB prompt, switch to thread #5 and type: > call SOS("DumpStack") > that is equivalent to doing this in NTSD: > !sos.DumpStack > > > To find the start of the jitted function, disassemble backwards until you find a > "push %ebp" opcode followed by "mov %esp, %ebp". Subtract 4 from the address of the > "push %ebp" opcode and you'll find a 4-byte pointer stored there, which points to a > pair of pointers to strings. I don't have a FreeBSD box handy, but I think "disas > 0x290be09d-0x40 0x290be09d" will disassemble 0x40 bytes worth of code just before > the machine code in #5. If you don't see the "push %ebp / mov %esp, %ebp" there, > then keep going backwards until you do find it. > > Barry > > -----Original Message----- > From: Discussion of the Rotor Shared Source CLI implementation [mailto:[EMAIL > PROTECTED] On Behalf Of Archana > Sent: Wednesday, July 07, 2004 9:03 AM > To: [EMAIL PROTECTED] > Subject: [DOTNET-ROTOR] tracking the source of an alloc > > Hi, > How can one find out where the call to GcHEap::Alloc is > originating from? > i had sent a similar mail regarding how to debug in > such cases long time back (ref:help needed wrt debugging, Jul24,2003, > that Barry Bond helped me with). i tried the method that was > suggested. but i am not able to locate the prolog here. and i dont know if > i can use SOS in the Free BSD platform? > i am running the application through gdb (Free BSD) and > doing a backtrace, this is what i get... > > Looking at the machine code at #5 in the following output > [ #5 0x290be09d in ?? ()], which is > Dump of assembler code from 0x290be09d to 0x290be19d: > 0x290be09d: add $0x8,%esp > 0x290be0a0: add $0x4,%esp > 0x290be0a3: push %eax > 0x290be0a4: mov $0x290b5bc4,%eax > 0x290be0a9: push %eax > 0x290be0aa: mov $0x28541678,%eax > 0x290be0af: call *%eax > 0x290be0b1: add $0x4,%esp > 0x290be0b4: mov $0x290b564c,%eax > 0x290be0b9: push %eax > 0x290be0ba: mov $0x28539b50,%eax > 0x290be0bf: call *%eax > 0x290be0c1: add $0x4,%esp > 0x290be0c4: push %eax > 0x290be0c5: mov $0x2d0d0568,%eax > 0x290be0ca: call *%eax > 0x290be0cc: add $0x8,%esp > 0x290be0cf: push %esp > 0x290be0d0: push %ebp > 0x290be0d1: mov $0xc,%eax > 0x290be0d6: push %eax > 0x290be0d7: mov $0x2d0d02b4,%eax > 0x290be0dc: call *%eax > 0x290be0de: add $0xc,%esp > 0x290be0e1: mov 0xfffffffc(%ebp),%esi > 0x290be0e4: mov %ebp,%esp > 0x290be0e6: pop %ebp > 0x290be0e7: ret > 0x290be0e8: add %al,(%eax) > 0x290be0ea: add %al,(%eax) > 0x290be0ec: add %al,(%eax) > ............... > > > Program received signal SIGTRAP, Trace/breakpoint trap. > 0x280cff40 in DBG_DebugBreak () at ../context.c:390 > (gdb) bt > #0 0x280cff40 in DBG_DebugBreak () at ../context.c:390 > #1 0x28081cb2 in DebugBreak () at ../debug.c:220 > #2 0x28737a66 in Alloc (size=16, bFinalize=0, bContainsPointers=0) at > /usr/home/archana/fastgc/sscli/clr/src/vm/wks/../gcscan.cpp:82 > #3 0x28513e63 in FastAllocateObject (pMT=0x2909fb94) at > /usr/home/archana/fastgc/sscli/clr/src/vm/wks/../gcscan.cpp:975 > #4 0x2853fd70 in JIT_Box (type=0x2909fb94, unboxedData=0xbfbfb254) at > /usr/home/archana/fastgc/sscli/clr/src/vm/wks/../jitinterface.cpp:6737 > #5 0x290be09d in ?? () > #6 0x2834bc05 in donestack () from > /usr/home/archana/fastgc/sscli/build/v1.x86fstchk.rotor/libsscoree.so > #7 0x283e18eb in CallDescrWorker (pSrcEnd=0xbfbfb844, numStackSlots=0, > pArgumentRegisters=0xbfbfb814, pTarget=0x290b5a93) at > /usr/home/archana/fastgc/sscli/clr/src/vm/wks/../class.cpp:9769 > #8 0x2854ea3e in MethodDesc::CallDescr (this=0x290b5a98, > pTarget=0x290b5a93 "él\205", pModule=0x81b2c00, pMetaSigOrig=0x290b6b44, > fIsStatic=1, pArguments=0x0) at > /usr/home/archana/fastgc/sscli/clr/src/vm/wks/../method.cpp:740 > #9 0x2854e274 in MethodDesc::Call (this=0x290b5a98, pArguments=0x0, > sig=0x290b6b44) at > /usr/home/archana/fastgc/sscli/clr/src/vm/wks/../method.cpp:567 > #10 0x283e2a96 in EEClass::RunClassInit (this=0x29047d6c, > pEntry=0x81f9200, pThrowable=0xbfbfc784) at > /usr/home/archana/fastgc/sscli/clr/src/vm/wks/../class.cpp:10010 > #11 0x283e322a in EEClass::DoRunClassInitHelper (this=0x29047d6c, > pThrowable=0xbfbfc784, pLocalBlock=0x806cc3c, pEntry=0x81f9200, > fRunClassInit=1) at > /usr/home/archana/fastgc/sscli/clr/src/vm/wks/../class.cpp:10064 > ........... > > thanks & Regards > archana > > =================================== > This list is hosted by DevelopMentor® http://www.develop.com > ASP.NET courses you may be interested in: > > Guerrilla ASP.NET > 15 March 2004, in Boston, MA > 17 May 2004 in Torrance, CA > 7 June 2004, London, UK > > http://www.develop.com/courses/gaspdotnetls > > View archives and manage your subscription(s) at http://discuss.develop.com > > =================================== > This list is hosted by DevelopMentor® http://www.develop.com > ASP.NET courses you may be interested in: > > Guerrilla ASP.NET > 15 March 2004, in Boston, MA > 17 May 2004 in Torrance, CA > 7 June 2004, London, UK > > http://www.develop.com/courses/gaspdotnetls > > View archives and manage your subscription(s) at http://discuss.develop.com > -- Regards, Archana =================================== This list is hosted by DevelopMentor® http://www.develop.com ASP.NET courses you may be interested in: Guerrilla ASP.NET 15 March 2004, in Boston, MA 17 May 2004 in Torrance, CA 7 June 2004, London, UK http://www.develop.com/courses/gaspdotnetls View archives and manage your subscription(s) at http://discuss.develop.com