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-rw-r--r--erts/emulator/beam/sys.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h
index 279e4db0af..e77b4b2dc8 100644
--- a/erts/emulator/beam/sys.h
+++ b/erts/emulator/beam/sys.h
@@ -136,6 +136,17 @@ typedef ERTS_SYS_FD_TYPE ErtsSysFdType;
# define ERTS_LIKELY(BOOL) (BOOL)
# define ERTS_UNLIKELY(BOOL) (BOOL)
#endif
+
+#if ERTS_AT_LEAST_GCC_VSN__(2, 96, 0)
+#ifndef __llvm__
+# define ERTS_WRITE_UNLIKELY(X) X __attribute__ ((section ("ERTS_LOW_WRITE") ))
+#else
+# define ERTS_WRITE_UNLIKELY(X) X __attribute__ ((section ("__DATA,ERTS_LOW_WRITE") ))
+#endif
+#else
+# define ERTS_WRITE_UNLIKELY(X) X
+#endif
+
#ifdef __GNUC__
# if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 5)
# define ERTS_DECLARE_DUMMY(X) X __attribute__ ((unused))