diff options
| -rw-r--r-- | compiler-rt/lib/sanitizer_common/sanitizer_internal_defs.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_internal_defs.h b/compiler-rt/lib/sanitizer_common/sanitizer_internal_defs.h index 7ba7adaae9b..2d68ed1bff0 100644 --- a/compiler-rt/lib/sanitizer_common/sanitizer_internal_defs.h +++ b/compiler-rt/lib/sanitizer_common/sanitizer_internal_defs.h @@ -65,7 +65,13 @@ // SANITIZER_SUPPORTS_WEAK_HOOKS means that we support real weak functions that // will evaluate to a null pointer when not defined. #ifndef SANITIZER_SUPPORTS_WEAK_HOOKS -#if (SANITIZER_LINUX || SANITIZER_MAC || SANITIZER_SOLARIS) && !SANITIZER_GO +#if (SANITIZER_LINUX || SANITIZER_SOLARIS) && !SANITIZER_GO +# define SANITIZER_SUPPORTS_WEAK_HOOKS 1 +// Before Xcode 4.5, the Darwin linker doesn't reliably support undefined +// weak symbols. Mac OS X 10.9/Darwin 13 is the first release only supported +// by Xcode >= 4.5. +#elif SANITIZER_MAC && \ + __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1090 && !SANITIZER_GO # define SANITIZER_SUPPORTS_WEAK_HOOKS 1 #else # define SANITIZER_SUPPORTS_WEAK_HOOKS 0 |
