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GET /api/patches/2196360/?format=api
{ "id": 2196360, "url": "http://patchwork.ozlabs.org/api/patches/2196360/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/patch/20260213150535.90350-3-dhruvc@nvidia.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": "<20260213150535.90350-3-dhruvc@nvidia.com>", "list_archive_url": null, "date": "2026-02-13T15:05:35", "name": "[2/2] gcc-auto-profile: Force writing perf output to perf.data [PR124075]", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "3df61471c68d2ec9ea76a8a94d2ba745283e1d73", "submitter": { "id": 89212, "url": "http://patchwork.ozlabs.org/api/people/89212/?format=api", "name": "Dhruv Chawla", "email": "dhruvc@nvidia.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/gcc/patch/20260213150535.90350-3-dhruvc@nvidia.com/mbox/", "series": [ { "id": 492111, "url": "http://patchwork.ozlabs.org/api/series/492111/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/list/?series=492111", "date": "2026-02-13T15:05:33", "name": "gcc-auto-profile: Fixes for PR123923 and PR124075", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/492111/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2196360/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2196360/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=Nvidia.com header.i=@Nvidia.com header.a=rsa-sha256\n header.s=selector2 header.b=VMQhRpTg;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org\n (client-ip=38.145.34.32; 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helo=mail.nvidia.com; pr=C", "From": "<dhruvc@nvidia.com>", "To": "<gcc-patches@gcc.gnu.org>", "CC": "<hubicka@ucw.cz>, <kvivekananda@nvidia.com>, <ktkachov@nvidia.com>", "Subject": "[PATCH 2/2] gcc-auto-profile: Force writing perf output to perf.data\n [PR124075]", "Date": "Fri, 13 Feb 2026 20:35:35 +0530", "Message-ID": "<20260213150535.90350-3-dhruvc@nvidia.com>", "X-Mailer": "git-send-email 2.50.1", "In-Reply-To": "<20260213150535.90350-1-dhruvc@nvidia.com>", "References": "<20260213150535.90350-1-dhruvc@nvidia.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-Originating-IP": "[10.126.230.35]", "X-ClientProxiedBy": "rnnvmail203.nvidia.com (10.129.68.9) To\n rnnvmail201.nvidia.com (10.129.68.8)", "X-EOPAttributedMessage": "0", "X-MS-PublicTrafficType": "Email", "X-MS-TrafficTypeDiagnostic": "MWH0EPF000C6194:EE_|LV3PR12MB9118:EE_", "X-MS-Office365-Filtering-Correlation-Id": "1bb6188d-62b1-44e1-f24a-08de6b117430", "X-MS-Exchange-SenderADCheck": "1", "X-MS-Exchange-AntiSpam-Relay": "0", "X-Microsoft-Antispam": "BCL:0;\n ARA:13230040|82310400026|1800799024|36860700013|376014;", "X-Microsoft-Antispam-Message-Info": "\n 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", "X-Forefront-Antispam-Report": "CIP:216.228.117.160; CTRY:US; LANG:en; SCL:1;\n SRV:;\n IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:dc6edge1.nvidia.com; CAT:NONE;\n SFS:(13230040)(82310400026)(1800799024)(36860700013)(376014); DIR:OUT;\n SFP:1101;", "X-MS-Exchange-AntiSpam-MessageData-ChunkCount": "1", "X-MS-Exchange-AntiSpam-MessageData-0": "\n ESaqha49oAGK0FrnlQ8VRNJ6mGufBJOHm1MuHGZV3HJEu64+nLJjBgSBAHZZjWFXkXgZ1n5VbWkbmlhMpZ9zZr8zfhMvLqK+jhLemSsbhOU+I9FqyQI6I+hTqeoa/MiIxpd6fU3F/IlTHDHoxyOI2WacNa/hcMj8ha0qOvXboWsfTHVrAYjygq77ObdJmyYeQnttUeE5YcB6Ca0iRj9O544DuuHr9LV/BmHw5czzE5oWMuj93mYcYx2y2lwtA68ugbN8GcVkA7r1WspOLFpeLhW4ggKTnWDONp+Iw7g57bPs0A6g/LRdg9c0qgLB2cOaYfsrzqyJOyUa2FKsJoNaUIAgUHoZ68dp6FQf1AiFdgjqZ8E8UwVOB52gUY8lgeH77aS/BZa1TaXbKFCggXOhV3ggVd6649LvEFbSAdBSAWrtj5skNYJOO9aKGOgO+HMd", "X-OriginatorOrg": "Nvidia.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "13 Feb 2026 15:06:23.9991 (UTC)", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n 1bb6188d-62b1-44e1-f24a-08de6b117430", "X-MS-Exchange-CrossTenant-Id": "43083d15-7273-40c1-b7db-39efd9ccc17a", "X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp": "\n TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.117.160];\n Helo=[mail.nvidia.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n MWH0EPF000C6194.namprd02.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "LV3PR12MB9118", "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": "From: Dhruv Chawla <dhruvc@nvidia.com>\n\nThis is a partial fix for PR124075 which forces perf record to write the\nprofile out to perf.data. This is required because I noticed on both\naarch64 and x86 that it was writing out the profile to stdout at times,\nwhich would cause profile information to be dropped. This did not fail\nin the various create_fdas_for_* targets because they would only try and\naccess the perf profiles if they existed at their paths.\n\nFurther work for this patch is to plumb the PERF_DATA make variable into\nthe perf record invocation, but that is a stage 1 thing.\n\nAutoprofilebootstrapped and regtested on aarch64-linux-gnu.\n\nSigned-off-by: Dhruv Chawla <dhruvc@nvidia.com>\n\ngcc/ChangeLog:\n\tPR gcov-profile/124075\n\t* config/aarch64/gcc-auto-profile: Add \"-o perf.data\" to perf\n\trecord invocation.\n\t* config/i386/gcc-auto-profile: Likewise.\n---\n gcc/config/aarch64/gcc-auto-profile | 4 ++--\n gcc/config/i386/gcc-auto-profile | 4 ++--\n 2 files changed, 4 insertions(+), 4 deletions(-)", "diff": "diff --git a/gcc/config/aarch64/gcc-auto-profile b/gcc/config/aarch64/gcc-auto-profile\nindex fdf06dfeed0..b235e966048 100755\n--- a/gcc/config/aarch64/gcc-auto-profile\n+++ b/gcc/config/aarch64/gcc-auto-profile\n@@ -43,11 +43,11 @@ if [ \"$use_brbe\" = true ] ; then\n echo >&2 \"Warning: branch profiling may not be functional in VMs\"\n fi\n set -x\n- perf record --inherit -j any,$FLAGS \"$@\"\n+ perf record --inherit -o perf.data -j any,$FLAGS \"$@\"\n set +x\n else\n echo >&2 \"Warning: branch profiling may not be functional without BRBE\"\n set -x\n- perf record --inherit \"$@\"\n+ perf record --inherit -o perf.data \"$@\"\n set +x\n fi\ndiff --git a/gcc/config/i386/gcc-auto-profile b/gcc/config/i386/gcc-auto-profile\nindex 5cd4077826b..c7772a2800f 100755\n--- a/gcc/config/i386/gcc-auto-profile\n+++ b/gcc/config/i386/gcc-auto-profile\n@@ -117,13 +117,13 @@ echo >&2 \"AMD CPU without support for ex_ret_brn_tkn event\"\n fi ;;\n esac\n set -x\n-if ! perf record --inherit -e $E -b \"$@\" ; then\n+if ! perf record --inherit -o perf.data -e $E -b \"$@\" ; then\n # PEBS may not actually be working even if the processor supports it\n # (e.g., in a virtual machine). Trying to run without /p.\n set +x\n echo >&2 \"Retrying without /p.\"\n E=\"$(echo \"${E}\" | sed -e \\'s/\\/p/\\//\\ -e s/:p//)\"\n set -x\n- exec perf record --inherit -e $E -b \"$@\"\n+ exec perf record --inherit -o perf.data -e $E -b \"$@\"\n set +x\n fi\n", "prefixes": [ "2/2" ] }