use callback function to report stack backtrace

Assume I have the following:

typedef struct {
   char *name;
   char binding;
   int address;
} Fn_Symbol               //definition of function symbol

static Fn_Symbol *fnSymbols; //array of function symbols in a file
statc int total;  //number of symbol functions in the array and file

static void PrintBacktrace(int sigum, siginfo_t * siginfo, void *context)
{
   printf("\nSignal received %d (%s)\n", signum, strsignal(signum));
   const int eip_index = 14; 
   void *eip = (void *)((struct ucontext *)context)->uc_mcontext.gregs[eip_index];
   printf("Error at [%p]  %s (+0x%x), eip, fnName, offset from start); //?????
   exit(0);
}

I have this so far, but what is the best way using the fnSymbols static global pointer to identify the functi开发者_开发知识库on where the error occured and then back trace through the stack to identify each calling function by address, name, and offset?

http://linux.die.net/man/3/backtrace_symbols

On Linux, search for tool named addr2line.

Your application would have to be compiled with -rdynamic option. The following:

addr2line 0x8048a76 -f -e app_name

outputs the function name and also the line number on the source code.