Re: [RFC][PATCH 1/5] objtool: Exit successfully when requesting help

From: Josh Poimboeuf
Date: Fri May 15 2020 - 15:53:04 EST


On Mon, May 11, 2020 at 10:35:09AM -0700, Matt Helsley wrote:
> When the user requests help it's not an error so do not exit with
> a non-zero exit code. This is not especially useful for a user but
> any script that might wish to check that objtool --help is at least
> available can't rely on the exit code to crudely check that, for
> example building an objtool executable succeeds.
>
> Signed-off-by: Matt Helsley <mhelsley@xxxxxxxxxx>
> ---
> tools/objtool/objtool.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/tools/objtool/objtool.c b/tools/objtool/objtool.c
> index 0b3528f05053..593ec85915a9 100644
> --- a/tools/objtool/objtool.c
> +++ b/tools/objtool/objtool.c
> @@ -58,7 +58,10 @@ static void cmd_usage(void)
>
> printf("\n");
>
> - exit(129);
> + if (!help)
> + exit(129);
> + else
> + exit(0);

Looks fine, though the 'else' isn't needed.

--
Josh