FOLLY_ATTR_GNU_USED

Summary: ``` [[FOLLY_ATTR_GNU_USED]] void foo() {} ``` Differential Revision: D57165728 fbshipit-source-id: 5c492c7ccc890ebdb56db8c2cc5acbdd0fad8c71
facebook · May 9, 2024 · 8fb67f8 · 8fb67f8
1 parent f455273
commit 8fb67f8
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/folly/CppAttributes.h b/folly/CppAttributes.h
@@ -145,3 +145,9 @@
 #else
 #define FOLLY_ATTR_CLANG_PRESERVE_ALL
 #endif
+
+#if FOLLY_HAS_CPP_ATTRIBUTE(gnu::used)
+#define FOLLY_ATTR_GNU_USED gnu::used
+#else
+#define FOLLY_ATTR_GNU_USED
+#endif