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

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On Mon, Jul 08, 2019 at 11:30:13PM -0700, Brendan Higgins wrote:
> 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
> 

Acked-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>

-- 
Josh



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