From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shuah Khan Subject: Re: [PATCH] selftests/exec: allow shell return code of 126 Date: Mon, 05 Jan 2015 12:03:39 -0700 Message-ID: <54AAE00B.1020809__13556.6262797967$1420484666$gmane$org@osg.samsung.com> References: <1420456786-5989-1-git-send-email-drysdale@google.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <1420456786-5989-1-git-send-email-drysdale@google.com> Sender: linux-m68k-owner@vger.kernel.org List-Id: linux-m68k@vger.kernel.org To: David Drysdale , linux-kernel@vger.kernel.org, Geert Uytterhoeven , Andreas Schwab Cc: Andrew Morton , linux-m68k@lists.linux-m68k.org, linux-api@vger.kernel.org, Shuah Khan On 01/05/2015 04:19 AM, David Drysdale wrote: > When the shell fails to invoke a script because its path name > is too long (ENAMETOOLONG), most shells return 127 to indicate > command not found. However, some systems report 126 (which POSIX > suggests should indicate a non-executable file) for this case, > so allow that too. > > Reported-by: Geert Uytterhoeven > Signed-off-by: David Drysdale > --- > tools/testing/selftests/exec/execveat.c | 28 ++++++++++++++++++++++------ > 1 file changed, 22 insertions(+), 6 deletions(-) > > diff --git a/tools/testing/selftests/exec/execveat.c b/tools/testing/selftests/exec/execveat.c > index d273624c93a6..0d940c6e26bd 100644 > --- a/tools/testing/selftests/exec/execveat.c > +++ b/tools/testing/selftests/exec/execveat.c > @@ -62,7 +62,7 @@ static int _check_execveat_fail(int fd, const char *path, int flags, > } > > static int check_execveat_invoked_rc(int fd, const char *path, int flags, > - int expected_rc) > + int expected_rc, int expected_rc2) This logic doesn't scale well if there other expected return values to account for. Please think about a re-write to handle multiple expected return codes. > { > int status; > int rc; > @@ -99,9 +99,19 @@ static int check_execveat_invoked_rc(int fd, const char *path, int flags, > return 1; > } > if (WEXITSTATUS(status) != expected_rc) { > - printf("[FAIL] (child %d exited with %d not %d)\n", > - child, WEXITSTATUS(status), expected_rc); > - return 1; > + if (expected_rc != expected_rc2) { Please collapse expected_rc and expected_rc2 checks. You can rephrase the error message to work for both cases. thanks, -- Shuah -- Shuah Khan Sr. Linux Kernel Developer Open Source Innovation Group Samsung Research America (Silicon Valley) shuahkh@osg.samsung.com | (970) 217-8978