add ASAN fiber extern definitions and functions

JuliaLang · Sep 13, 2019 · 26d21e0 · 26d21e0
1 parent 47f2800
commit 26d21e0
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Showing 2 changed files with 31 additions and 0 deletions.
diff --git a/src/julia.h b/src/julia.h
@@ -65,6 +65,36 @@
 #  define JL_THREAD_LOCAL
 #endif
 
+#if defined(__has_feature)
+#if __has_feature(address_sanitizer)
+#define JL_ASAN_ENABLED     // Clang flavor
+#endif
+#elif defined(__SANITIZE_ADDRESS__)
+#define JL_ASAN_ENABLED     // GCC flavor
+#endif
+
+#ifdef JL_ASAN_ENABLED
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+void __sanitizer_start_switch_fiber(void**, const void*, size_t);
+void __sanitizer_finish_switch_fiber(void*, const void**, size_t*);
+#ifdef __cplusplus
+}
+#endif
+
+static inline void sanitizer_start_switch_fiber(const void* bottom, size_t size) {
+    __sanitizer_start_switch_fiber(NULL, bottom, size);
+}
+static inline void sanitizer_finish_switch_fiber() {
+    __sanitizer_finish_switch_fiber(NULL, NULL, NULL);
+}
+#else
+static inline void sanitizer_start_switch_fiber(const void* bottom, size_t size) {}
+static inline void sanitizer_finish_switch_fiber() {}
+#endif
+
 #define container_of(ptr, type, member) \
     ((type *) ((char *)(ptr) - offsetof(type, member)))
 

diff --git a/src/julia_internal.h b/src/julia_internal.h
@@ -21,6 +21,7 @@
 #define JL_ASAN_ENABLED     // GCC flavor
 #endif
 
+
 #if defined(__has_feature)
 #if __has_feature(memory_sanitizer)
 #define JL_MSAN_ENABLED