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GET /api/patches/2219236/?format=api
{ "id": 2219236, "url": "http://patchwork.ozlabs.org/api/patches/2219236/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/patch/20260402161725.2742458-1-torbjorn.svensson@foss.st.com/", "project": { "id": 17, "url": "http://patchwork.ozlabs.org/api/projects/17/?format=api", "name": "GNU Compiler Collection", "link_name": "gcc", "list_id": "gcc-patches.gcc.gnu.org", "list_email": "gcc-patches@gcc.gnu.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260402161725.2742458-1-torbjorn.svensson@foss.st.com>", "list_archive_url": null, "date": "2026-04-02T16:15:24", "name": "[v3] testsuite: fork does not work for bare metal targets", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "2ae955d132c266271a4ce3c552221a8312334edc", "submitter": { "id": 84848, "url": "http://patchwork.ozlabs.org/api/people/84848/?format=api", "name": "Torbjörn SVENSSON", "email": "torbjorn.svensson@foss.st.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/gcc/patch/20260402161725.2742458-1-torbjorn.svensson@foss.st.com/mbox/", "series": [ { "id": 498509, "url": "http://patchwork.ozlabs.org/api/series/498509/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/list/?series=498509", "date": "2026-04-02T16:15:24", "name": "[v3] testsuite: fork does not work for bare metal targets", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/498509/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2219236/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2219236/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "gcc-patches@gcc.gnu.org" ], "Delivered-To": [ "patchwork-incoming@legolas.ozlabs.org", "gcc-patches@gcc.gnu.org" ], "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=foss.st.com header.i=@foss.st.com header.a=rsa-sha256\n header.s=selector2 header.b=UwH9WilH;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org\n (client-ip=2620:52:6:3111::32; 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helo=smtpO365.st.com;", "From": "=?utf-8?q?Torbj=C3=B6rn_SVENSSON?= <torbjorn.svensson@foss.st.com>", "To": "<gcc-patches@gcc.gnu.org>", "CC": "<josmyers@redhat.com>, <richard.earnshaw@arm.com>,\n <ro@CeBiTec.Uni-Bielefeld.DE>, <mikestump@comcast.net>, <schwab@suse.de>,\n <rguenther@suse.de>, <christophe.lyon@arm.com>, =?utf-8?q?Torbj=C3=B6rn_SVE?=\n\t=?utf-8?q?NSSON?= <torbjorn.svensson@foss.st.com>", "Subject": "[PATCH v3] testsuite: fork does not work for bare metal targets", "Date": "Thu, 2 Apr 2026 18:15:24 +0200", "Message-ID": "<20260402161725.2742458-1-torbjorn.svensson@foss.st.com>", "X-Mailer": "git-send-email 2.43.0", "In-Reply-To": "<11b947d1-9ad5-49b0-809e-35a5ee58f70f@arm.com>", "References": "<11b947d1-9ad5-49b0-809e-35a5ee58f70f@arm.com>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"UTF-8\"", "Content-Transfer-Encoding": "8bit", "X-Originating-IP": "[10.74.22.122]", "X-ClientProxiedBy": "STKCAS1NODE1.st.com (10.75.128.134) To STKDAG1NODE2.st.com\n (10.75.128.133)", "X-EOPAttributedMessage": "0", "X-MS-PublicTrafficType": "Email", "X-MS-TrafficTypeDiagnostic": "DB1PEPF0003922E:EE_|GV2PR10MB7463:EE_", "X-MS-Office365-Filtering-Correlation-Id": "c5f64283-907d-4e55-8dd4-08de90d35be5", "X-MS-Exchange-SenderADCheck": "1", "X-MS-Exchange-AntiSpam-Relay": "0", "X-Microsoft-Antispam": "BCL:0;\n ARA:13230040|42112799006|1800799024|376014|36860700016|82310400026|56012099003|18002099003|22082099003;", "X-Microsoft-Antispam-Message-Info": "\n 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", "X-Forefront-Antispam-Report": "CIP:164.130.1.59; 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Ip=[164.130.1.59];\n Helo=[smtpO365.st.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n DB1PEPF0003922E.eurprd03.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "GV2PR10MB7463", "X-BeenThere": "gcc-patches@gcc.gnu.org", "X-Mailman-Version": "2.1.30", "Precedence": "list", "List-Id": "Gcc-patches mailing list <gcc-patches.gcc.gnu.org>", "List-Unsubscribe": "<https://gcc.gnu.org/mailman/options/gcc-patches>,\n <mailto:gcc-patches-request@gcc.gnu.org?subject=unsubscribe>", "List-Archive": "<https://gcc.gnu.org/pipermail/gcc-patches/>", "List-Post": "<mailto:gcc-patches@gcc.gnu.org>", "List-Help": "<mailto:gcc-patches-request@gcc.gnu.org?subject=help>", "List-Subscribe": "<https://gcc.gnu.org/mailman/listinfo/gcc-patches>,\n <mailto:gcc-patches-request@gcc.gnu.org?subject=subscribe>", "Errors-To": "gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org" }, "content": "Changes since v2:\n\n- Call check_fork_available instead of duplicating the target chesk\n\nChanges since v1:\n\n- Added proc to check that fork() actually succeeds on target.\n- Updated dg-require-fork to call the right check depending on dg-do.\n- Droped change in gcc.misc-tests/gcov-pr86536.c\n\nOk for trunk?\n\n--\n\nFor an arm-none-eabi toolchain, at least built with newlib, the fork()\nfunction exist, but it returns failure. The implementation is part of\nlibnosys.a and is there only to allow linking (runtime failure).\n\ngcc/testsuite/ChangeLog:\n\n\t* lib/target-supports.exp (check_fork_runtime): New function to\n\tcheck that target has a working fork() implementation.\n\t* lib/target-supports-dg.exp (dg-require-fork): When test is\n\t\"run\", then call check_fork_runtime, else check_fork_available.\n\nSigned-off-by: Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>\n---\n gcc/testsuite/lib/target-supports-dg.exp | 12 +++++++++---\n gcc/testsuite/lib/target-supports.exp | 21 +++++++++++++++++++++\n 2 files changed, 30 insertions(+), 3 deletions(-)", "diff": "diff --git a/gcc/testsuite/lib/target-supports-dg.exp b/gcc/testsuite/lib/target-supports-dg.exp\nindex f5d386f8f07..aa26cefc05f 100644\n--- a/gcc/testsuite/lib/target-supports-dg.exp\n+++ b/gcc/testsuite/lib/target-supports-dg.exp\n@@ -267,9 +267,15 @@ proc dg-require-effective-target { args } {\n # If this target does not have fork, skip this test.\n \n proc dg-require-fork { args } {\n- if { ![check_fork_available] } {\n-\tupvar dg-do-what dg-do-what\n- set dg-do-what [list [lindex ${dg-do-what} 0] \"N\" \"P\"]\n+ upvar dg-do-what dg-do-what\n+\n+ set doaction [lindex ${dg-do-what} 0]\n+ if { $doaction == \"run\" } {\n+ if { ![check_fork_runtime] } {\n+\t set dg-do-what [list $doaction \"N\" \"P\"]\n+ }\n+ } elseif { ![check_fork_available] } {\n+ set dg-do-what [list $doaction \"N\" \"P\"]\n }\n }\n \ndiff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp\nindex c8791827556..d34fd034f0e 100644\n--- a/gcc/testsuite/lib/target-supports.exp\n+++ b/gcc/testsuite/lib/target-supports.exp\n@@ -3802,6 +3802,27 @@ proc check_fork_available {} {\n return [check_function_available \"fork\"]\n }\n \n+# Returns true iff \"fork\" is working on the target system.\n+\n+proc check_fork_runtime {} {\n+ if { ![check_fork_available] } {\n+\treturn 0\n+ }\n+\n+ return [check_runtime fork_runtime {\n+ #include <unistd.h>\n+ #include <stdlib.h>\n+\n+ int main()\n+ {\n+\t pid_t p = fork();\n+\t if (p < 0)\n+\t abort();\n+\t return 0;\n+ }\n+ }]\n+}\n+\n # Returns true iff \"mkfifo\" is available on the target system.\n \n proc check_mkfifo_available {} {\n", "prefixes": [ "v3" ] }