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[asan] Explicitly declare memintrinsics interceptors to have C linkage 

This is needed on RTEMS.  Also update a comment.

Differential Revision: https://reviews.llvm.org/D47079

llvm-svn: 332746
This commit is contained in:
Walter Lee 2018-05-18 18:01:08 +00:00
parent 1273f4ad93
commit 0edca4f505
1 changed files with 6 additions and 6 deletions
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12
compiler-rt/lib/asan/asan_interceptors_memintrinsics.cc
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@ -33,12 +33,12 @@ void *__asan_memmove(void *to, const void *from, uptr size) {
#if SANITIZER_FUCHSIA || SANITIZER_RTEMS
// Fuchsia doesn't use sanitizer_common_interceptors.inc, but the only
// things there it wants are these three. Just define them as aliases
// here rather than repeating the contents.
// Fuchsia and RTEMS don't use sanitizer_common_interceptors.inc, but
// the only things there it wants are these three. Just define them
// as aliases here rather than repeating the contents.
decltype(__asan_memcpy) memcpy[[gnu::alias("__asan_memcpy")]];
decltype(__asan_memmove) memmove[[gnu::alias("__asan_memmove")]];
decltype(__asan_memset) memset[[gnu::alias("__asan_memset")]];
extern "C" decltype(__asan_memcpy) memcpy[[gnu::alias("__asan_memcpy")]];
extern "C" decltype(__asan_memmove) memmove[[gnu::alias("__asan_memmove")]];
extern "C" decltype(__asan_memset) memset[[gnu::alias("__asan_memset")]];
#endif // SANITIZER_FUCHSIA || SANITIZER_RTEMS