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{ "id": 2223859, "url": "http://patchwork.ozlabs.org/api/1.1/covers/2223859/?format=api", "web_url": "http://patchwork.ozlabs.org/project/glibc/cover/20260416092751.11653-1-yury.khrustalev@arm.com/", "project": { "id": 41, "url": "http://patchwork.ozlabs.org/api/1.1/projects/41/?format=api", "name": "GNU C Library", "link_name": "glibc", "list_id": "libc-alpha.sourceware.org", "list_email": "libc-alpha@sourceware.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260416092751.11653-1-yury.khrustalev@arm.com>", "date": "2026-04-16T09:27:49", "name": "[0/2] malloc: introduce ifuncs for malloc functions", "submitter": { "id": 88214, "url": "http://patchwork.ozlabs.org/api/1.1/people/88214/?format=api", "name": "Yury Khrustalev", "email": "yury.khrustalev@arm.com" }, "mbox": "http://patchwork.ozlabs.org/project/glibc/cover/20260416092751.11653-1-yury.khrustalev@arm.com/mbox/", "series": [ { "id": 500124, "url": "http://patchwork.ozlabs.org/api/1.1/series/500124/?format=api", "web_url": "http://patchwork.ozlabs.org/project/glibc/list/?series=500124", "date": "2026-04-16T09:27:49", "name": "malloc: introduce ifuncs for malloc functions", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/500124/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2223859/comments/", "headers": { "Return-Path": "<libc-alpha-bounces~incoming=patchwork.ozlabs.org@sourceware.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "libc-alpha@sourceware.org" ], "Delivered-To": [ "patchwork-incoming@legolas.ozlabs.org", "libc-alpha@sourceware.org" ], "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n unprotected) header.d=arm.com header.i=@arm.com header.a=rsa-sha256\n header.s=foss header.b=MOE2lngK;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=sourceware.org\n (client-ip=38.145.34.32; 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J . Lu\" <hjl.tools@gmail.com>, Carlos O'Donell <carlos@redhat.com>,\n Wilco Dijkstra <wilco.dijkstra@arm.com>", "Subject": "[PATCH 0/2] malloc: introduce ifuncs for malloc functions", "Date": "Thu, 16 Apr 2026 10:27:49 +0100", "Message-ID": "<20260416092751.11653-1-yury.khrustalev@arm.com>", "X-Mailer": "git-send-email 2.47.3", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-BeenThere": "libc-alpha@sourceware.org", "X-Mailman-Version": "2.1.30", "Precedence": "list", "List-Id": "Libc-alpha mailing list <libc-alpha.sourceware.org>", "List-Unsubscribe": "<https://sourceware.org/mailman/options/libc-alpha>,\n <mailto:libc-alpha-request@sourceware.org?subject=unsubscribe>", "List-Archive": "<https://sourceware.org/pipermail/libc-alpha/>", "List-Post": "<mailto:libc-alpha@sourceware.org>", "List-Help": "<mailto:libc-alpha-request@sourceware.org?subject=help>", "List-Subscribe": "<https://sourceware.org/mailman/listinfo/libc-alpha>,\n <mailto:libc-alpha-request@sourceware.org?subject=subscribe>", "Errors-To": "libc-alpha-bounces~incoming=patchwork.ozlabs.org@sourceware.org" }, "content": "See commit message for details. In a nutshell, we want to add ifucs\nfor the functions related to the malloc API (on targets that support\nifuncs). This will allow to add alternative (e.g. target-specific)\nimplementations for these functions.\n\nThe following aspects have been considered:\n\n1) Generic resolvers that return core implementations. These will be\n used for most targets that don't provide their custome resolvers.\n\n2) Allow targets to provide their own resolvers (e.g. aarch64 may use\n this to implement resolvers that return memory tagging implementations\n when this is supported and requested).\n\n3) For the targets without ifunc support there is no functional change.\n\nPasses regression on aarch64 and x86-64 and has been build-tested using\nthe build-many-glibcs script for various targets including those without\nifunc support. OK for trunk?\n\n---\nbase-commit: 02d9614158\n---\n\nYury Khrustalev (2):\n misc: fix lint-makefiles failures\n malloc: introduce ifuncs for malloc functions\n\n malloc/malloc.c | 119 ++++++++++++++++++--------------\n sysdeps/aarch64/Makefile | 42 ++++++++---\n sysdeps/aarch64/malloc-ifuncs.c | 85 +++++++++++++++++++++++\n sysdeps/generic/Makefile | 27 ++++++--\n sysdeps/generic/malloc-ifuncs.c | 94 +++++++++++++++++++++++++\n sysdeps/generic/malloc-ifuncs.h | 62 +++++++++++++++++\n 6 files changed, 362 insertions(+), 67 deletions(-)\n create mode 100644 sysdeps/aarch64/malloc-ifuncs.c\n create mode 100644 sysdeps/generic/malloc-ifuncs.c\n create mode 100644 sysdeps/generic/malloc-ifuncs.h" }