jmgao added a comment. In http://reviews.llvm.org/D12181#229467, @rsmith wrote:
> In http://reviews.llvm.org/D12181#229358, @rsmith wrote: > > > Can you please give a brief description of the motivation for this change? > > When would it be appropriate to use this rather than `-ftrap-function`? > > > I'd still like an answer to this. It's not clear to me what the purpose of > this is, and why you'd want a custom runtime hook for sanitizer traps but not > other traps. The only time we emit a trap using `-ftrap-function` where there > is no corresponding sanitizer is for `__builtin_trap()`; is the intention > that you still want a normal trap for that builtin? The goal is to be able to give a useful fsanitize-specific error message ("fsanitize trap occurred"), while not lying and saying this for non-sanitize traps. http://reviews.llvm.org/D12181 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
