[PATCH] backtrace.c: Fix word cast to a pointer

[Keith Packard]

Vicente Olivert Riera <Vincent.Riera at imgtec.com> writes:

> Making the cast to a pointer-sized integer, and then to a pointer fixes
> the problem.

> -        if (dladdr((void *)(pip.start_ip + off), &dlinfo) && dlinfo.dli_fname &&
> +        if (dladdr((void *)(long)(pip.start_ip + off), &dlinfo) && dlinfo.dli_fname &&

I'd suggest using uintptr_t instead of long if you want a pointer-sized
integer.

-- 
-keith
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