From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 73724C624D5 for ; Tue, 1 Sep 2026 17:10:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=UUr2L0xZXuVjXC0opxsWwmpYI8eWn5RdN8+EU6TaHG8=; b=Rmo66VbKV5KSpUsnW5qWE7WTy4 8wUcsENwuWyop7ycFJDkU0b6VZoM3d+rqrmbhzQER8Y+NqH/zAbrdXr7s8v8wDz27fDmiRO7xqbWh Q2rNbMFw8pZORSEmZVWPxQIsi1jMqzf1cXKhevlUukkU2om4ihUK+CbsVqm4e9jOGqBPfNJlvKkP5 y4hjnyEe1q7kYpMXuVtHhVlgjeYprsM8JwoBwiFXOmzBwBlzhhV9IvNs3l/B+bLEDrCTuz6xRWQ7Z VPF1/3D/zjDEQseYYg1aisqyz3FoZaftmmRbeaYcEARR2hOdmMy5L6W5cfluofNm0aztYiAn3Q9k1 YxGpmdlg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x1Rzp-0000000ClIn-15c5; Tue, 01 Sep 2026 17:10:05 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x1Rzn-0000000ClGz-2rsi for linux-arm-kernel@lists.infradead.org; Tue, 01 Sep 2026 17:10:03 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 7204F43879; Tue, 1 Sep 2026 17:10:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 271851F00A3D; Tue, 1 Sep 2026 17:10:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788282603; bh=UUr2L0xZXuVjXC0opxsWwmpYI8eWn5RdN8+EU6TaHG8=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=m7HFcvQ6ZOILVfCIPfGcm2sYoC7+RyTjKQyrVhaLuGAlAaQkpHrqKZdgmymsBlVvu UOTAkmWvAP0w6Npou0cuyHNEwg4+rZ+ihYIhdXQnc4/CSSvlJDBXfJVOAv1QSwOF3K 6a/V2SuAbbwKJIQ0BSI7lZJ4rP0qMiVlgDAC+VNHtI32EUpnuza3+Mef+zscIlYOcn 2veJgDLftSAOpHbT0BJjwdUXEuMyWdNDcIjDrUMRw8/fmuTjuufBDbOnMl7VcRzskf TMKVUbCY4nniS9yeuiGaGUTTvwGk+0AT6SKsnwEH7arwConpLkvkxslfQ2s6ahLKX3 Mg+YchyeYj0aQ== From: Mark Brown Date: Tue, 01 Sep 2026 18:06:50 +0100 Subject: [PATCH 10/11] kselftest/arm64: Use execv() to start fp-stress test loads MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260901-arm64-fp-stress-kvm-v1-10-31bce995b49b@kernel.org> References: <20260901-arm64-fp-stress-kvm-v1-0-31bce995b49b@kernel.org> In-Reply-To: <20260901-arm64-fp-stress-kvm-v1-0-31bce995b49b@kernel.org> To: Catalin Marinas , Will Deacon , Shuah Khan Cc: Marc Zyngier , Oliver Upton , Fuad Tabba , Mark Rutland , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kselftest@vger.kernel.org, Mark Brown X-Mailer: b4 0.17-dev X-Developer-Signature: v=1; a=openpgp-sha256; l=3995; i=broonie@kernel.org; h=from:subject:message-id; bh=OD+Ba64C7inB0cl5Iu32U66JVXkD8/nZCh6jkxPgkhI=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBqlwbMVzi46ham4MZ37vEa0QuE+9ue1LBEjwxEU OE99wvmAlOJATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCapcGzAAKCRAk1otyXVSH 0JN5B/4vmuinpRF9rcr/7Xwi3BARN1hFTeH+b0NVSjDDSdFgiRYjK2eoFv8hjldBC22vtMalmQs tZ0Lx0FHcDxL/MQZXNSkoQqM9DeiaQ1UhHTByKLvUM4fXgs1Hse2eFTPim+HLgMzf2/5FzSA4SI W8wSGiGPv/bMKsRy9TYGRIYYuvuVB28lmkI+axBErFzYX4627IN7N6TLsAbFNwQ+YuxHO4jJQPV TISvJ0x1sKaza/1L9c0A+Y0Eo2V/tA1M+uzMTYuvXq6u+YOP1CUkqx8e64Y4pWaCFi54Bv21pUQ HjMf2Ki+JreB0J+EuwEy4WNovrwO8BaPC9vmWSWDHjntWuCU X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org In preparation for adding KVM test loads which will take command line arguments switch to using execv() instead of execl() to start the test load programs. Signed-off-by: Mark Brown --- tools/testing/selftests/arm64/fp/fp-stress.c | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/tools/testing/selftests/arm64/fp/fp-stress.c b/tools/testing/selftests/arm64/fp/fp-stress.c index 65e01aba96ff..e96fe1ac1ad1 100644 --- a/tools/testing/selftests/arm64/fp/fp-stress.c +++ b/tools/testing/selftests/arm64/fp/fp-stress.c @@ -60,7 +60,7 @@ static int num_processors(void) return nproc; } -static void child_start(struct child_data *child, const char *program) +static void child_start(struct child_data *child, char *const prog_args[]) { int ret, pipefd[2], i; struct epoll_event ev; @@ -116,9 +116,9 @@ static void child_start(struct child_data *child, const char *program) printf("%d bytes of data on startup pipe\n", ret); close(3); - ret = execl(program, program, NULL); - printf("execl(%s) failed: %d (%s)\n", - program, errno, strerror(errno)); + ret = execv(prog_args[0], prog_args); + printf("execv(%s) failed: %d (%s)\n", + prog_args[0], errno, strerror(errno)); exit(EXIT_FAILURE); } else { @@ -310,32 +310,35 @@ static void handle_exit_signal(int sig, siginfo_t *info, void *context) static void start_fpsimd(struct child_data *child, int cpu, int copy) { + char *args[] = { "./fpsimd-test", NULL }; int ret; ret = asprintf(&child->name, "FPSIMD-%d-%d", cpu, copy); if (ret == -1) ksft_exit_fail_msg("asprintf() failed\n"); - child_start(child, "./fpsimd-test"); + child_start(child, args); ksft_print_msg("Started %s\n", child->name); } static void start_kernel(struct child_data *child, int cpu, int copy) { + char *args[] = { "./kernel-test", NULL }; int ret; ret = asprintf(&child->name, "KERNEL-%d-%d", cpu, copy); if (ret == -1) ksft_exit_fail_msg("asprintf() failed\n"); - child_start(child, "./kernel-test"); + child_start(child, args); ksft_print_msg("Started %s\n", child->name); } static void start_sve(struct child_data *child, int vl, int cpu) { + char *args[] = { "./sve-test", NULL }; int ret; ret = prctl(PR_SVE_SET_VL, vl | PR_SVE_VL_INHERIT); @@ -346,13 +349,14 @@ static void start_sve(struct child_data *child, int vl, int cpu) if (ret == -1) ksft_exit_fail_msg("asprintf() failed\n"); - child_start(child, "./sve-test"); + child_start(child, args); ksft_print_msg("Started %s\n", child->name); } static void start_ssve(struct child_data *child, int vl, int cpu) { + char *args[] = { "./ssve-test", NULL }; int ret; ret = asprintf(&child->name, "SSVE-VL-%d-%d", vl, cpu); @@ -363,13 +367,14 @@ static void start_ssve(struct child_data *child, int vl, int cpu) if (ret < 0) ksft_exit_fail_msg("Failed to set SME VL %d\n", ret); - child_start(child, "./ssve-test"); + child_start(child, args); ksft_print_msg("Started %s\n", child->name); } static void start_za(struct child_data *child, int vl, int cpu) { + char *args[] = { "./za-test", NULL }; int ret; ret = prctl(PR_SME_SET_VL, vl | PR_SVE_VL_INHERIT); @@ -380,20 +385,21 @@ static void start_za(struct child_data *child, int vl, int cpu) if (ret == -1) ksft_exit_fail_msg("asprintf() failed\n"); - child_start(child, "./za-test"); + child_start(child, args); ksft_print_msg("Started %s\n", child->name); } static void start_zt(struct child_data *child, int cpu) { + char *args[] = { "./zt-test", NULL }; int ret; ret = asprintf(&child->name, "ZT-%d", cpu); if (ret == -1) ksft_exit_fail_msg("asprintf() failed\n"); - child_start(child, "./zt-test"); + child_start(child, args); ksft_print_msg("Started %s\n", child->name); } -- 2.47.3