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authorMarco Elver <elver@google.com>2020-06-04 08:58:11 +0300
committerPeter Zijlstra <peterz@infradead.org>2020-06-15 15:10:09 +0300
commit5144f8a8dfd7b3681f0a2b5bf599a210b2315018 (patch)
tree6fd894145f691c9d671cc29291b19c0dcc5558d1 /include/linux/compiler-gcc.h
parent7b861a53e46b6b42ab8560b105af308cb72d7285 (diff)
downloadlinux-5144f8a8dfd7b3681f0a2b5bf599a210b2315018.tar.xz
compiler_types.h: Add __no_sanitize_{address,undefined} to noinstr
Adds the portable definitions for __no_sanitize_address, and __no_sanitize_undefined, and subsequently changes noinstr to use the attributes to disable instrumentation via KASAN or UBSAN. Reported-by: syzbot+dc1fa714cb070b184db5@syzkaller.appspotmail.com Signed-off-by: Marco Elver <elver@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> Link: https://lore.kernel.org/lkml/000000000000d2474c05a6c938fe@google.com/
Diffstat (limited to 'include/linux/compiler-gcc.h')
-rw-r--r--include/linux/compiler-gcc.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 7dd4e0349ef3..1c74464c80c6 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -150,6 +150,12 @@
#define __no_sanitize_thread
#endif
+#if __has_attribute(__no_sanitize_undefined__)
+#define __no_sanitize_undefined __attribute__((no_sanitize_undefined))
+#else
+#define __no_sanitize_undefined
+#endif
+
#if GCC_VERSION >= 50100
#define COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW 1
#endif