[PATCH v2 2/8] objtool, kcsan: Add __tsan_read_write to uaccess whitelist

Marco Elver
2020-07-24T07:00:39Z

Adds the new __tsan_read_write compound instrumentation to objtool's
uaccess whitelist.

Signed-off-by: Marco Elver <elver@google.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
tools/objtool/check.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 63d8b630c67a..38d82e705c93 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -528,6 +528,11 @@ static const char *uaccess_safe_builtin[] = {
"__tsan_write4",
"__tsan_write8",
"__tsan_write16",
+ "__tsan_read_write1",
+ "__tsan_read_write2",
+ "__tsan_read_write4",
+ "__tsan_read_write8",
+ "__tsan_read_write16",
"__tsan_atomic8_load",
"__tsan_atomic16_load",
"__tsan_atomic32_load",
--
2.28.0.rc0.142.g3c755180ce-goog