[cfe-commits] [PATCH] Add -fcatch-undefined-behavior runtime library

[Richard Smith]

On Thu, Oct 4, 2012 at 3:36 AM, Kostya Serebryany <kcc at google.com> wrote:

>
> asan/tsan/msan generally avoid #including system headers, especially in .h
> files.
> Once you start porting the code to non-linux, you'll know why.
> compiler-rt/lib/sanitizer_common contains lots of useful stuff that allows
> you to avoid using system headers.
> WDYT?
>

I was trying to steer clear of most system headers, but I've tried a bit
harder now; new patch attached.

I'm not concerned about the includes in ubsan_diag.cc, since I intend for
that code to be replaced in the medium term (and to be made
user-replaceable -- some applications will want to provide their own
reporting functionality). That only leaves <stdint.h> and <stddef.h>, which
are both provided by Clang. I'm not hugely interested in making the runtime
build with any other compiler, since you need to have a Clang which can
target your platform anyway in order for it to be useful.
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