On 2/23/2011 6:03 AM, ANDY KENNEDY wrote:
> > >
> > > So, initially it looks like this would (at least) work for mips32r2
> > >
> >
> > Fine, please let us to know your outcomes.
>
>
> Doh! Stupid question: How would I test that this _actually_ works?
>
> I mean, I tried this:
>
>
> #include <stdio.h>
> #include <stdlib.h>
> #include <signal.h>
> #include <execinfo.h>
>
> void *barray[128];
>
> static void segfault(int sgn) {
> size_t size = backtrace(barray, sizeof(barray));
> fprintf(stderr, "Backtrace: \n");
> backtrace_symbols_fd(barray, size, 2);
> abort();
> }
>
> int f1(int *ptr)
> {
> printf("Pointer = %i\n", *ptr);
> return 0;
> }
>
> int f2(int *ptr)
> {
> f1((int *)(ptr + 0x5555aaaa));
> return 0;
> }
>
> int main(void)
> {
> signal(11, segfault);
> f2((int *)109324);
> return 0;
> }
>
> but I only got this:
>
> Backtrace:
> Aborted
>
>
> When I compile I have to specify -lubacktrace; however, when linking
> against
> glibc, the backtrace family is apparently included by default.
>
no, the linker script libc.so does the work.
> FYI: I get no linker errors, and no warnings.
>
> Please advise.
>
> Andy
>
>
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