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Re: [PATCH] [COMMITTED] Fix bootstrap on powerpc-apple-darwin
Andreas Tobler <email@example.com> writes:
> thanks, this brings darwin6.8 further.
> Ian Lance Taylor wrote:
> ret = mmap_result == (void *) MAP_FAILED;
> > + /* Sanity check for broken MAP_FIXED. */
> > + if (ret && mmap_result != addr)
> > + abort ();
> > + }
> Could anyone please explain me this a bit more.
> This sanity check I don't understand.
> This check aborts if ret == 1 because mmap_result = 0xffffffff and
> address != 1, it also aborts if ret == 0 because mmap_result is
> something and address != 0.
> Maybe it's too late but I spent quite a while and I don't get this
> routine into my understanding. I'd be happy if someone could explain
Yes, it should presumably be
ret = mmap_result != (void *) MAP_FAILED;