Messages in this thread Patch in this message | | | Date | Fri, 08 May 2020 13:46:34 -0000 | From | "tip-bot2 for Marco Elver" <> | Subject | [tip: locking/kcsan] objtool, kcsan: Add explicit check functions to uaccess whitelist |
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The following commit has been merged into the locking/kcsan branch of tip:
Commit-ID: 9967683ce5d4ce21829bbc807e006ee33cc68725 Gitweb: https://git.kernel.org/tip/9967683ce5d4ce21829bbc807e006ee33cc68725 Author: Marco Elver <elver@google.com> AuthorDate: Wed, 25 Mar 2020 17:41:57 +01:00 Committer: Paul E. McKenney <paulmck@kernel.org> CommitterDate: Mon, 13 Apr 2020 17:18:12 -07:00
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 <elver@google.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> --- tools/objtool/check.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/tools/objtool/check.c b/tools/objtool/check.c index b6da413..b6a573d 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",
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