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Diffstat (limited to 'libsanitizer/interception/interception.h')
-rw-r--r--libsanitizer/interception/interception.h22
1 files changed, 13 insertions, 9 deletions
diff --git a/libsanitizer/interception/interception.h b/libsanitizer/interception/interception.h
index 51505e1baa2..458928f14b1 100644
--- a/libsanitizer/interception/interception.h
+++ b/libsanitizer/interception/interception.h
@@ -120,19 +120,23 @@ const interpose_substitution substitution_##func_name[] \
# define DECLARE_WRAPPER(ret_type, func, ...)
#elif defined(_WIN32)
-# if defined(_DLL) // DLL CRT
-# define WRAP(x) x
-# define WRAPPER_NAME(x) #x
-# define INTERCEPTOR_ATTRIBUTE
-# else // Static CRT
-# define WRAP(x) wrap_##x
-# define WRAPPER_NAME(x) "wrap_"#x
-# define INTERCEPTOR_ATTRIBUTE
-# endif
+# define WRAP(x) __asan_wrap_##x
+# define WRAPPER_NAME(x) "__asan_wrap_"#x
+# define INTERCEPTOR_ATTRIBUTE __declspec(dllexport)
# define DECLARE_WRAPPER(ret_type, func, ...) \
extern "C" ret_type func(__VA_ARGS__);
# define DECLARE_WRAPPER_WINAPI(ret_type, func, ...) \
extern "C" __declspec(dllimport) ret_type __stdcall func(__VA_ARGS__);
+#elif defined(__FreeBSD__)
+# define WRAP(x) __interceptor_ ## x
+# define WRAPPER_NAME(x) "__interceptor_" #x
+# define INTERCEPTOR_ATTRIBUTE __attribute__((visibility("default")))
+// FreeBSD's dynamic linker (incompliantly) gives non-weak symbols higher
+// priority than weak ones so weak aliases won't work for indirect calls
+// in position-independent (-fPIC / -fPIE) mode.
+# define DECLARE_WRAPPER(ret_type, func, ...) \
+ extern "C" ret_type func(__VA_ARGS__) \
+ __attribute__((alias("__interceptor_" #func), visibility("default")));
#else
# define WRAP(x) __interceptor_ ## x
# define WRAPPER_NAME(x) "__interceptor_" #x