If code is compiled with debugging information, gdb gives source level information. File name and line number when crash occurs.
You can use -g option while compiling. There are other options as well. Please see gcc man page for that. Regards, Kalpesh -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Friday, June 06, 2008 2:35 PM To: davinci-linux-open-source@linux.davincidsp.com Subject: Re: Alignment trap problem hi thank you for the reply this is what im getting Alignment trap: application(1198) PC=0x4074fcf0 Instr=0xe49c2004 Address=0x000e96d6 FSR 0x013 so how can i look in to this? > [EMAIL PROTECTED] wrote: >> hi .. >> >> I am trying to run an application on davinci .. i have >> successfully >> cross compiled the source .. and while running on on board .. its >> giving >> >> alignment trap: >> bus error >> >> and application will abort.. >> >> I have tried the same source for x86 machine and it worked fine .. i >> know >> this has to do something with arm memory alignment access .. please can >> anybody tel me how to solve this alignment trap issue .. .. or can tel >> me >> where in source code i can fix this ?? > > arm can access 16bit words only on 2 byte aligned addresses and 32 byte > words > only on 4 byte aligned addresses. > > X86 does not care, so a lot of X86 code accesses 16 and 32 unaligned. > You'll > have to inspect your code and find the places where this happens, usual > suspects > are char* pointer which are casted to complex structs. > > The aligment trap should give you a hint where in your code this happened. > > http://netwinder.osuosl.org/users/b/brianbr/public_html/alignment.html > http://www.mjmwired.net/kernel/Documentation/arm/mem_alignment > > Regards, > > Vladimir > _______________________________________________ > Davinci-linux-open-source mailing list > Davinci-linux-open-source@linux.davincidsp.com > http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source > _______________________________________________ Davinci-linux-open-source mailing list Davinci-linux-open-source@linux.davincidsp.com http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source _______________________________________________ Davinci-linux-open-source mailing list Davinci-linux-open-source@linux.davincidsp.com http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
