2013/3/14 jojelino <[email protected]>: > On 2013-03-14 PM 4:37, Ken Huang wrote: >> >> Hi all, >> >> I have a problem when using gdb to debug my program in cygwin, the 'bt' >> command >> gives me many '??'. >> (gdb) bt full >> #0 0x7c92e514 in ntdll!LdrAccessResource () from >> /cygdrive/c/WINDOWS/system32/ntdll.dll >> No symbol table info available. >> #1 0x7c92df5a in ntdll!ZwWaitForSingleObject () from >> /cygdrive/c/WINDOWS/system32/ntdll.dll >> No symbol table info available. >> #2 0x7c8025db in WaitForSingleObjectEx () from >> /cygdrive/c/WINDOWS/system32/kernel32.dll >> No symbol table info available. >> #3 0x00000714 in ?? () >> No symbol table info available. >> #4 0x00000000 in ?? () >> No symbol table info available. >> >> My test program is as follows: >> void bar() >> { >> abort(); >> } >> >> void foo() >> { >> bar(); >> } >> >> int main() >> { >> foo(); >> } >> >> So, did I compile wrong, or is there something I didn't set properly? >> >> Thanks, >> Ken >> > > There is no way of identifying stdcall or fastcall ABI for return address > that are not annotated by DWARF contained in stack frames in current gdb. > you'd better give up or come with patches that solved the problem. > -- > Regards.
So you mean gdb can't help to debug buggy code without patches? but as the results I googled before, there are people out there use gdb just like in linux. Do I need to install some external packages? Regards, Ken -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
