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{ "id": 2225597, "url": "http://patchwork.ozlabs.org/api/1.1/covers/2225597/?format=api", "web_url": "http://patchwork.ozlabs.org/project/glibc/cover/20260421090020.59726-1-l.stelmach@samsung.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": "<20260421090020.59726-1-l.stelmach@samsung.com>", "date": "2026-04-21T09:00:17", "name": "[RFC,0/3] Use multiple ld.so caches to separate execution environments", "submitter": { "id": 65337, "url": "http://patchwork.ozlabs.org/api/1.1/people/65337/?format=api", "name": "Łukasz Stelmach", "email": "l.stelmach@samsung.com" }, "mbox": "http://patchwork.ozlabs.org/project/glibc/cover/20260421090020.59726-1-l.stelmach@samsung.com/mbox/", "series": [ { "id": 500763, "url": "http://patchwork.ozlabs.org/api/1.1/series/500763/?format=api", "web_url": "http://patchwork.ozlabs.org/project/glibc/list/?series=500763", "date": "2026-04-21T09:00:19", "name": "Use multiple ld.so caches to separate execution environments", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/500763/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2225597/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=pass (1024-bit key;\n unprotected) header.d=samsung.com header.i=@samsung.com header.a=rsa-sha256\n header.s=mail20170921 header.b=G4gCRW8i;\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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a=rsa-sha256; d=sourceware.org; s=key; t=1776762041; cv=none;\n b=k8ZvIeMy4FAxOCiFR7dhuiaaL/rfBSRQBTEGe4LmcYR9JF2GKk4lWbKh/g5xOQt4g7n2Vy8Bwg7/HyNcb46xL+jEEJEZwOWk2A8suVaGQxDCdFH9A7g6Sa7QMH6jPCzvEP40LOKKl6WwEhuv4b27hcccCeR/XFsL8ffDQuBCWBA=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=sourceware.org; s=key;\n t=1776762041; c=relaxed/simple;\n bh=aAj+TYlis4dWtugss7072H4Ic2AOSGtMIhYy2ojvxJY=;\n h=DKIM-Signature:From:To:Subject:Date:Message-ID:MIME-Version;\n b=Ir21BRqI1lx53Lv5WqYsCwvlSvHnUGOcW+G+WsAsA+Itb6Ruvke8aDeibu1J0FkWR0R9ThBpAJ6HCJM2pC6Ys11q6wu1SGnqe80SRyJC3y9O+H41TLG3tH2FAfEbE4LOLDVjFzsUkQfYkpEN3vU5zGx0kS/HdSCj0IawSEj+I6s=", "ARC-Authentication-Results": "i=1; server2.sourceware.org", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com;\n s=mail20170921; t=1776762038;\n bh=RfEII1bNf9OTm/Fy2F2w2WbcfKcN//bH5VHylWM/gaU=;\n h=From:To:Cc:Subject:Date:References:From;\n b=G4gCRW8iGyRCt5YEx3BbSYm/F6bESi9gB5YwpHYitaSZhZ3QBxiW6c0UR5kZadcjS\n Zt0ckMzUTnxz5DLfvjJ1UdYKZdU4WHjOU0a9ayww7sqTBHe9rCUrWzw7stWysWnVOH\n UHc0968pM+NI2G/SOnr5ZoLuorYSpMVv6zBCezH8=", "From": "=?utf-8?q?=C5=81ukasz_Stelmach?= <l.stelmach@samsung.com>", "To": "libc-alpha@sourceware.org", "Cc": "j.kryszyn@samsung.com, m.szyprowski@samsung.com, k.lewandowsk@samsung.com,\n cw00.choi@samsung.com, dongkyun.s@samsung.com, sungguk.na@samsung.com,\n\t=?utf-8?q?=C5=81ukasz_Stelmach?= <l.stelmach@samsung.com>", "Subject": "[RFC 0/3] Use multiple ld.so caches to separate execution\n environments", "Date": "Tue, 21 Apr 2026 11:00:17 +0200", "Message-ID": "<20260421090020.59726-1-l.stelmach@samsung.com>", "X-Mailer": "git-send-email 2.47.3", "MIME-Version": "1.0", "Organization": "Samsung R&D Institute Poland", "Content-Transfer-Encoding": "8bit", "X-CMS-MailID": "20260421090038eucas1p1a21b53a890667495c13e7055c6c69421", "X-Msg-Generator": "CA", "Content-Type": "text/plain; charset=\"utf-8\"", "X-RootMTR": "20260421090038eucas1p1a21b53a890667495c13e7055c6c69421", "X-EPHeader": "CA", "X-CMS-RootMailID": "20260421090038eucas1p1a21b53a890667495c13e7055c6c69421", "References": "\n <CGME20260421090038eucas1p1a21b53a890667495c13e7055c6c69421@eucas1p1.samsung.com>", "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": "The following series of patches is our take on contenerization with\nas little overhead as possible. We developed this code to use in\nembedded devices where parts of the platform are delivered by a hardware\nvendor. Rather than integrating these parts with the rest of our platform\nwe keep them separate in a separate directory (e.g. /vendor) and make\nthe runtime linker collect dependencies of binaries from the directory\nin that directory (like chroot but without restricting access to data\nstored outside the directory).\n\nMore detailed description is provided in the following commit messages.\n\nMateusz Moscicki (3):\n dlconf: Add support for config file for ld.so\n ldconfig: Add an option to ignore standard path during ld.so.cache\n generation\n Add a solution to prevent conflict between symbols loaded from\n dependencies\n\n config.h.in | 9 +\n config.make.in | 4 +\n configure | 58 +\n configure.ac | 28 +\n elf/Makefile | 9 +\n elf/dl-cache.c | 192 +-\n elf/dl-call-libc-early-init.c | 3 +\n elf/dl-close.c | 9 +\n elf/dl-deps.c | 21 +\n elf/dl-load.c | 75 +-\n elf/dl-lookup.c | 24 +\n elf/dl-main.h | 3 +\n elf/dl-object.c | 5 +\n elf/dl-open.c | 13 +\n elf/dl-usage.c | 9 +-\n elf/dlconf-getexecutable.c | 20 +\n elf/dlconf-print.c | 268 ++\n elf/dlconf.c | 2517 +++++++++++++++++\n elf/dlconf.h | 182 ++\n elf/ldconfig.c | 21 +-\n elf/rtld.c | 47 +\n include/link.h | 18 +\n scripts/ld_so_cache_maker.py | 76 +\n .../unix/sysv/linux/dlconf-getexecutable.c | 61 +\n 24 files changed, 3596 insertions(+), 76 deletions(-)\n create mode 100644 elf/dlconf-getexecutable.c\n create mode 100644 elf/dlconf-print.c\n create mode 100644 elf/dlconf.c\n create mode 100644 elf/dlconf.h\n create mode 100644 scripts/ld_so_cache_maker.py\n create mode 100644 sysdeps/unix/sysv/linux/dlconf-getexecutable.c" }