From 9722ed0e52aba80177960458d7d3deb3dde59c53 Mon Sep 17 00:00:00 2001
From: shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 7 Nov 2018 04:56:24 +0000
Subject: suppress GCC warning about unknown sanitizers

See also: https://travis-ci.org/ruby/ruby/jobs/451710726#L1941


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65590 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 gc.c       |  4 +---
 internal.h | 10 ++++++++++
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/gc.c b/gc.c
index b38646988d..fe778aa917 100644
--- a/gc.c
+++ b/gc.c
@@ -4164,11 +4164,9 @@ ruby_stack_check(void)
     return stack_check(GET_EC(), STACKFRAME_FOR_CALL_CFUNC);
 }
 
-ATTRIBUTE_NO_ADDRESS_SAFETY_ANALYSIS
-(
+ATTRIBUTE_NO_ADDRESS_SAFETY_ANALYSIS(static void mark_locations_array(rb_objspace_t *objspace, register const VALUE *x, register long n));
 static void
 mark_locations_array(rb_objspace_t *objspace, register const VALUE *x, register long n)
-)
 {
     VALUE v;
     while (n--) {
diff --git a/internal.h b/internal.h
index 2f3124f791..1a030566d3 100644
--- a/internal.h
+++ b/internal.h
@@ -68,6 +68,16 @@ extern "C" {
 # define ATTRIBUTE_NO_ADDRESS_SAFETY_ANALYSIS(x) x
 #endif
 
+#if defined(NO_SANITIZE) && defined(__GNUC__) &&! defined(__clang__)
+/* GCC warns about unknown sanitizer, which is annoying. */
+#undef NO_SANITIZE
+#define NO_SANITIZE(x, y) \
+    COMPILER_WARNING_PUSH; \
+    COMPILER_WARNING_IGNORED(-Wattributes); \
+    __attribute__((__no_sanitize__(x))) y; \
+    COMPILER_WARNING_POP
+#endif
+
 #ifndef NO_SANITIZE
 # define NO_SANITIZE(x, y) y
 #endif
-- 
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