[PATCH] D20084: [sanitizer] Initial implementation of a Hardened Allocator

Mon Jun 6 08:24:34 PDT 2016

cryptoad added a comment.

In http://reviews.llvm.org/D20084#449057, @kcc wrote:

> I am getting these when trying 'ninja check-scudo'
>  /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/atomic:266: undefined reference to `__sync_val_compare_and_swap_16'
>  Any suggestions?

Regarding @filcab's comment, -latomic is in the cflags in the lit.cfg, not sure why this is not working for you.

> BTW, do we make sure that check-scudo is not run if the current machine does not support proper SSE?

We do check for SSE 4.2 in the init of the Allocator via CHECK(testCPUFeature(SSE4_2))

http://reviews.llvm.org/D20084