[PATCH v3 22/25] objtool, kcsan: Add memory barrier instrumentation to whitelist
From: Marco Elver <elver@google.com>
Date: 2021-11-30 11:47:52
Also in:
linux-arch, linux-doc, linux-kbuild, lkml, llvm
Subsystem:
objtool, the rest · Maintainers:
Josh Poimboeuf, Peter Zijlstra, Linus Torvalds
Adds KCSAN's memory barrier instrumentation to objtool's uaccess whitelist. Signed-off-by: Marco Elver <elver@google.com> --- tools/objtool/check.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 21735829b860..61dfb66b30b6 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c@@ -849,6 +849,10 @@ static const char *uaccess_safe_builtin[] = { "__asan_report_store16_noabort", /* KCSAN */ "__kcsan_check_access", + "__kcsan_mb", + "__kcsan_wmb", + "__kcsan_rmb", + "__kcsan_release", "kcsan_found_watchpoint", "kcsan_setup_watchpoint", "kcsan_check_scoped_accesses",
--
2.34.0.rc2.393.gf8c9666880-goog