From nobody Wed Oct 8 02:17:15 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4F0892F0C72; Thu, 3 Jul 2025 16:06:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751558778; cv=none; b=bb3yg2BEBeZXXBPZ4YylKjPqRt87lDNdenjBBnhR/YafTzOj9Hivr/NEXtXftsPmWbuxOHSYVWZQsoMXp31Ch8pQ37HJk3l/B4VIUUXPmg6Nt4G50A9kyzq80smr6WTGtoB+m7/RJO3kJSzAGxHdbtSSu0YsUfpGBjOwrR9Y6G4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751558778; c=relaxed/simple; bh=k95pgC8uYho6a+kXi0z4LRYhCqPs5d/JUrw8wGO3J2U=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=h9UiBBWeov7NEyFEqPt9YNC0oFJ9EBoihBIBO3jgA2gydMp0DJ1oGaZeYr0uKL2jjJv75SHLditSl+je+2Bldld7fNeoIo930CvLJzJkbim1CXBFek+A6jib9sDZ5uYVLNdFG+SwwFVZ89JoCs4alTMeG8tLrtex2BACcmJV3Uc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=sZlNlyTt; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="sZlNlyTt" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A1670C4CEEE; Thu, 3 Jul 2025 16:06:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1751558777; bh=k95pgC8uYho6a+kXi0z4LRYhCqPs5d/JUrw8wGO3J2U=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=sZlNlyTttCKjCKDEo8ZvK65gLEsZunjGIXsP5gHiBfqrFJbIFhcXTs6X3P5LOtxPm VgDQNJD4JdNzbPL5OWGyWLWFHmAiHV21mBI5VjqiTGkAUqk9sY/78KWKK+ONvC+onB k5QMMuBXcSqpvs5xjg+qLQJz3mhhev98wO6GUX1ueaxXDNmPorRoJxboxe9rDVIRqG gnNoiMcD42iPK6tG+fBR78lcSX/alafSN/bFlvYAgpUaMrn5Uflmo+Q5KEeLyivCe5 7pybOZVPCUmJcKKYOkEoucLTz2QQ86DBvfgZENH/0EJzTUBUMTP/tyQIeNF6ThXJVf AysWdl4zV3alQ== From: Mark Brown Date: Thu, 03 Jul 2025 17:00:18 +0100 Subject: [PATCH v3 4/4] selftests/nolibc: Add coverage of vfork() Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250703-arm64-gcs-vfork-exit-v3-4-1e9a9d2ddbbe@kernel.org> References: <20250703-arm64-gcs-vfork-exit-v3-0-1e9a9d2ddbbe@kernel.org> In-Reply-To: <20250703-arm64-gcs-vfork-exit-v3-0-1e9a9d2ddbbe@kernel.org> To: Willy Tarreau , =?utf-8?q?Thomas_Wei=C3=9Fschuh?= , Christian Brauner , Catalin Marinas , Will Deacon , Shuah Khan Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kselftest@vger.kernel.org, Mark Brown X-Mailer: b4 0.15-dev-cff91 X-Developer-Signature: v=1; a=openpgp-sha256; l=2649; i=broonie@kernel.org; h=from:subject:message-id; bh=k95pgC8uYho6a+kXi0z4LRYhCqPs5d/JUrw8wGO3J2U=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBoZqpp3i92RBIH/xgX25THZxzWR1YIDTNkbJkXN aX0+ZotRh2JATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCaGaqaQAKCRAk1otyXVSH 0EP3B/9g2ihNKWqWkt4iW9QbyCgKDPCPqf+nZBPeEOOS7APQmwzTyQnuCfYmcEBB1fqKDN8wgss gBxNEKi9+ZtR4twbwAqnOr4+44Tq1oU1/hyBKt/6gFP0NkojKMOuKDVt1Z9b9Ac8qjGW/Z+zqcT tnnAFa5iY2+8MSMd8cO04Jc9FYZ8IeF+oKwfXfHL/1e6gpvSKS7cY7pcgil6Fiqx4TdYahvBdmq S2t4AeIyE5WcHgJdxol0nkzHlXry4UMz0tYsWsdlnkrzwovKBSTGtbkAqBjRrqoYTKuvoMvdz8t LKTVIDb5ETcI1KEUqCcSbZBVeXpDSJeYAS80FxSbHyKQAoxN X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB Generalise the existing fork() test to also cover the newly added vfork() implementation. Signed-off-by: Mark Brown --- tools/testing/selftests/nolibc/nolibc-test.c | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/s= elftests/nolibc/nolibc-test.c index dbe13000fb1a..d682434c6442 100644 --- a/tools/testing/selftests/nolibc/nolibc-test.c +++ b/tools/testing/selftests/nolibc/nolibc-test.c @@ -877,7 +877,12 @@ int test_file_stream(void) return 0; } =20 -int test_fork(void) +enum fork_type { + FORK_STANDARD, + FORK_VFORK, +}; + +int test_fork(enum fork_type type) { int status; pid_t pid; @@ -886,14 +891,23 @@ int test_fork(void) fflush(stdout); fflush(stderr); =20 - pid =3D fork(); + switch (type) { + case FORK_STANDARD: + pid =3D fork(); + break; + case FORK_VFORK: + pid =3D vfork(); + break; + default: + return 1; + } =20 switch (pid) { case -1: return 1; =20 case 0: - exit(123); + _exit(123); =20 default: pid =3D waitpid(pid, &status, 0); @@ -1330,7 +1344,7 @@ int run_syscall(int min, int max) CASE_TEST(dup3_m1); tmp =3D dup3(-1, 100, 0); EXPECT_SYSER(1, = tmp, -1, EBADF); if (tmp !=3D -1) close(tmp); break; CASE_TEST(execve_root); EXPECT_SYSER(1, execve("/", (char*[]){ [0]= =3D "/", [1] =3D NULL }, NULL), -1, EACCES); break; CASE_TEST(file_stream); EXPECT_SYSZR(1, test_file_stream()); break; - CASE_TEST(fork); EXPECT_SYSZR(1, test_fork()); break; + CASE_TEST(fork); EXPECT_SYSZR(1, test_fork(FORK_STANDARD));= break; CASE_TEST(getdents64_root); EXPECT_SYSNE(1, test_getdents64("/"), -1);= break; CASE_TEST(getdents64_null); EXPECT_SYSER(1, test_getdents64("/dev/null= "), -1, ENOTDIR); break; CASE_TEST(directories); EXPECT_SYSZR(proc, test_dirent()); break; @@ -1374,6 +1388,7 @@ int run_syscall(int min, int max) CASE_TEST(uname_fault); EXPECT_SYSER(1, uname(NULL), -1, EFAULT); = break; CASE_TEST(unlink_root); EXPECT_SYSER(1, unlink("/"), -1, EISDIR); = break; CASE_TEST(unlink_blah); EXPECT_SYSER(1, unlink("/proc/self/blah"),= -1, ENOENT); break; + CASE_TEST(vfork); EXPECT_SYSZR(1, test_fork(FORK_VFORK)); br= eak; CASE_TEST(wait_child); EXPECT_SYSER(1, wait(&tmp), -1, ECHILD); b= reak; CASE_TEST(waitpid_min); EXPECT_SYSER(1, waitpid(INT_MIN, &tmp, WNO= HANG), -1, ESRCH); break; CASE_TEST(waitpid_child); EXPECT_SYSER(1, waitpid(getpid(), &tmp, WN= OHANG), -1, ECHILD); break; --=20 2.39.5