[PATCH v7 08/18] objtool: add kunit_try_catch_throw to the noreturn list

From: Brendan Higgins
Date: Tue Jul 09 2019 - 02:34:38 EST


Fix the following warning seen on GCC 7.3:
kunit/test-test.o: warning: objtool: kunit_test_unsuccessful_try() falls through to next function kunit_test_catch()

kunit_try_catch_throw is a function added in the following patch in this
series; it allows KUnit, a unit testing framework for the kernel, to
bail out of a broken test. As a consequence, it is a new __noreturn
function that objtool thinks is broken (as seen above). So fix this
warning by adding kunit_try_catch_throw to objtool's noreturn list.

Reported-by: kbuild test robot <lkp@xxxxxxxxx>
Signed-off-by: Brendan Higgins <brendanhiggins@xxxxxxxxxx>
Link: https://www.spinics.net/lists/linux-kbuild/msg21708.html
Cc: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
---
tools/objtool/check.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 172f991957269..98db5fe85c797 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -134,6 +134,7 @@ static int __dead_end_function(struct objtool_file *file, struct symbol *func,
"usercopy_abort",
"machine_real_restart",
"rewind_stack_do_exit",
+ "kunit_try_catch_throw",
};

if (func->bind == STB_WEAK)
--
2.22.0.410.gd8fdbe21b5-goog