{"id":2224007,"url":"http://patchwork.ozlabs.org/api/covers/2224007/?format=json","web_url":"http://patchwork.ozlabs.org/project/glibc/cover/20260416143027.1881673-1-yury.khrustalev@arm.com/","project":{"id":41,"url":"http://patchwork.ozlabs.org/api/projects/41/?format=json","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":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260416143027.1881673-1-yury.khrustalev@arm.com>","list_archive_url":null,"date":"2026-04-16T14:30:19","name":"[v3,0/8] tests: Allow tests to append tunables","submitter":{"id":88214,"url":"http://patchwork.ozlabs.org/api/people/88214/?format=json","name":"Yury Khrustalev","email":"yury.khrustalev@arm.com"},"mbox":"http://patchwork.ozlabs.org/project/glibc/cover/20260416143027.1881673-1-yury.khrustalev@arm.com/mbox/","series":[{"id":500171,"url":"http://patchwork.ozlabs.org/api/series/500171/?format=json","web_url":"http://patchwork.ozlabs.org/project/glibc/list/?series=500171","date":"2026-04-16T14:30:19","name":"tests: Allow tests to append tunables","version":3,"mbox":"http://patchwork.ozlabs.org/series/500171/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/covers/2224007/comments/","headers":{"Return-Path":"","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=iDiGyFeB;\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;\n t=1776349837; c=relaxed/simple;\n bh=w8Hj8nn72bjmmYAZMARrzV853h1qTx1Q7Roq9pVkDiw=;\n h=DKIM-Signature:From:To:Subject:Date:Message-ID:MIME-Version;\n b=rbe5RQlDJbYWt3oUHDGwqSJ/5+1F7v5+2Ox6EtWLRwmygoHy1dfQ63bnFqsTEpk3lE6fEjI8m+/4k17ta7P0daeH/tVevHJ49fbs6L0PZDVOUR8a2LbP3TVaLQSVDV72N1+YAISHAaViaUHPOOoHxOeClZu+kA4PaVcV+unuY68=","ARC-Authentication-Results":"i=1; server2.sourceware.org","DKIM-Signature":"v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss;\n t=1776349836; bh=w8Hj8nn72bjmmYAZMARrzV853h1qTx1Q7Roq9pVkDiw=;\n h=From:To:Cc:Subject:Date:From;\n b=iDiGyFeBbZ8BtoZhdGX0OpJYrRYupIWfg3RpqFF2DWCOUsvY/e3WD/ifnl+3w6Du+\n ek3J18eRLtTcnY1JifXsuTXGio+oerg0W6SNFVd4ZERW9glsJ2V3xLJIAtWKIsJewA\n 7ubS9ASKH2+fI1gSMZxdt8h9i8na87NpyA9cWhY0=","From":"Yury Khrustalev ","To":"libc-alpha@sourceware.org","Cc":"Florian Weimer , Carlos O'Donell ,\n Wilco Dijkstra ","Subject":"[PATCH v3 0/8] tests: Allow tests to append tunables","Date":"Thu, 16 Apr 2026 15:30:19 +0100","Message-ID":"<20260416143027.1881673-1-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 ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"libc-alpha-bounces~incoming=patchwork.ozlabs.org@sourceware.org"},"content":"The commit message in the 1st patch explains why and how. We plan\nto use ability to combine test tunables to validate memory tagging\nimplementation in malloc: this will required added existing test\ntunables to the memtag tunable.\n\nAdditionally, after this change testing for GCS and BTI support\nwill have significantly increased coverage becaused we will be able\nto use ambient tunable to activate both BTI and GCS for most tests\nexcept those that use their specific tunables by using:\n\n GLIBC_TUNABLES=glibc.cpu.aarch64_bti=1:glibc.cpu.aarch64_gcs=3 \\\n make check\n\nPasses regression on aarch64 and x86-64. OK for trunk?\n\n---\nChanges in v3:\n - Reworked the whole thing to use *-TUNABLES += tunable=value\n instead of +$(eval $(call tunable-add,...,tunable=value))\n which wasn't ideal.\n - Updated makefiles that use GLIBC_TUNABLES for tests. Not all\n of them, since the old mechanism still works.\n - v2: https://patchwork.sourceware.org/project/glibc/list/?series=59742\n\nChanges in v2:\n - Rebased.\n - v1: https://patchwork.sourceware.org/project/glibc/list/?series=59144\n---\nbase-commit: 0d6295e203\n---\n\nYury Khrustalev (8):\n tests: Allow tests to append tunables\n tests: elf: Use new tunable handling\n tests: gmon: Use new tunable handling\n tests: misc: Use new tunable handling\n tests: nptl: Use new tunable handling\n tests: nptl: Remove unused code from makefile\n tests: time: Use new tunable handling\n tests: misc: Use new tunable handling for BTI and GCS tests\n\n Rules | 40 +++++--\n benchtests/Makefile | 2 +-\n elf/Makefile | 8 +-\n gmon/Makefile | 4 +-\n malloc/Makefile | 10 +-\n misc/Makefile | 4 +-\n nptl/Makefile | 4 -\n sysdeps/pthread/Makefile | 2 +-\n sysdeps/unix/sysv/linux/Makefile | 4 +-\n sysdeps/unix/sysv/linux/aarch64/Makefile | 129 ++++++++++++-----------\n time/Makefile | 2 +-\n 11 files changed, 117 insertions(+), 92 deletions(-)"}