From: Marco Elver Date: Wed, 25 Mar 2020 16:41:57 +0000 (+0100) Subject: objtool, kcsan: Add explicit check functions to uaccess whitelist X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=9967683ce5d4ce21829bbc807e006ee33cc68725;p=linux.git objtool, kcsan: Add explicit check functions to uaccess whitelist Add explicitly invoked KCSAN check functions to objtool's uaccess whitelist. This is needed in order to permit calling into kcsan_check_scoped_accesses() from the fast-path, which in turn calls __kcsan_check_access(). __kcsan_check_access() is the generic variant of the already whitelisted specializations __tsan_{read,write}N. Signed-off-by: Marco Elver Signed-off-by: Paul E. McKenney --- diff --git a/tools/objtool/check.c b/tools/objtool/check.c index b6da413bcbd61..b6a573d56f2ef 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -468,8 +468,10 @@ static const char *uaccess_safe_builtin[] = { "__asan_report_store8_noabort", "__asan_report_store16_noabort", /* KCSAN */ + "__kcsan_check_access", "kcsan_found_watchpoint", "kcsan_setup_watchpoint", + "kcsan_check_scoped_accesses", /* KCSAN/TSAN */ "__tsan_func_entry", "__tsan_func_exit",