Alfred Perlstein <[EMAIL PROTECTED]> writes:
> On 18 Jul 1999, Dag-Erling Smorgrav wrote:
> > Alfred Perlstein <[EMAIL PROTECTED]> writes:
> > > I doubt this is
> > > at all portable and may fail because of optimizations and ABI, such
> > > as archs that store the return address in a register...
> > I know - I don't expect it to be portable.
> *slap* :)
It's #ifdef'ed so you can drop it on platforms where it doesn't work :)
> > > gdb and glibc have some functions to assist in runtime backtraces,
> > > perhaps a look there may help?
> > I found out about __builtin_return_address(0).
> what is that? a function? available on freebsd?
GCC builtin function.
> by setting an alternate signal stack i think you can check
> if you are in a signal using this. this may not be the best way
> but it seems like a viable solution.
Hmm, I ended up using a global variable which I increment at the
beginning of the signal handler, and decrement at the end.
DES
--
Dag-Erling Smorgrav - [EMAIL PROTECTED]
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