From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 68954 invoked by alias); 3 Nov 2016 10:26:33 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Received: (qmail 66906 invoked by uid 89); 3 Nov 2016 10:26:31 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.2 spammy=Enhance, hurd, incorporated, month X-HELO: homiemail-a80.g.dreamhost.com Subject: [PING][PATCH v5 0/6] glibc tunables To: libc-alpha@sourceware.org References: <1477320168-23397-1-git-send-email-siddhesh@sourceware.org> Cc: Carlos O'Donell From: Siddhesh Poyarekar Message-ID: <85a6e4b3-21b1-3e50-bd5f-205f9b187eab@gotplt.org> Date: Thu, 03 Nov 2016 10:26:00 -0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 MIME-Version: 1.0 In-Reply-To: <1477320168-23397-1-git-send-email-siddhesh@sourceware.org> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-SW-Source: 2016-11/txt/msg00100.txt.bz2 Ping for 2-6/6, I pushed 1/6 since it is an independent cleanup. Siddhesh On Monday 24 October 2016 08:12 PM, Siddhesh Poyarekar wrote: > Hi, > > ... and I'm back! > > Here is another updated patch set with suggestions from multiple people > incorporated, including results from discussions at the GNU Tools Cauldron last > month. > > - I had inadvertently opened a hole with MALLOC_CHECK_ where it could be read > in setuid binaries even if /etc/suid-debug was not present. This is now > fixed. > > - __tunables_init is now called *really* early so that tunables are set up > before apply_irel is called. H. J. will now have to split his patch such > that his IFUNC resolver looks at both, the tunables and the result of cpuid > instead of overriding cpuid using tunables. I think this is a good thing > since it keeps the cpuid information honest and only masks it for the > specific purpose of IFUNC. > > - The very early initialization meant that I needed a new version of __access > that does not set errno. That's another patch to the patchset. This is an > internal function, so there is no ABI event here. > > - Enhanced the --enable-tunables option (in a separate patch) to accept string > values other than 'yes' and 'no'. As discussed at Cauldron, this would > allow us to experiment with different frontends without committing to one > yet. Right now there is only one frontend, i.e. 'valstring' that allows > setting tunables using the single GLIBC_TUNABLES environment variable. > > - Wrote a manual node for tunables. > > As usual, the branch siddhesh/tunables has these patches and any patches they > may depend on (like the doc changes for malloc). > > Siddhesh Poyarekar (6): > Static inline functions for mallopt helpers > New internal function __access_noerrno > Add framework for tunables > Initialize tunable list with the GLIBC_TUNABLES environment variable > Enhance --enable-tunables to select tunables frontend at build time > User manual documentation for tunables > > INSTALL | 18 ++ > Makeconfig | 16 ++ > README.tunables | 84 ++++++ > config.h.in | 3 + > config.make.in | 1 + > configure | 17 ++ > configure.ac | 10 + > csu/init-first.c | 2 - > csu/libc-start.c | 11 + > elf/Makefile | 7 + > elf/Versions | 3 + > elf/dl-support.c | 2 + > elf/dl-sysdep.c | 8 + > elf/dl-tunable-types.h | 46 +++ > elf/dl-tunables.c | 435 +++++++++++++++++++++++++++++ > elf/dl-tunables.h | 82 ++++++ > elf/dl-tunables.list | 69 +++++ > elf/rtld.c | 2 + > include/unistd.h | 6 + > io/Makefile | 1 + > io/access.c | 10 +- > io/access_noerrno.c | 21 ++ > malloc/Makefile | 6 + > malloc/arena.c | 54 ++++ > malloc/malloc.c | 126 ++++++--- > malloc/tst-malloc-usable-static-tunables.c | 1 + > malloc/tst-malloc-usable-static.c | 1 + > malloc/tst-malloc-usable-tunables.c | 1 + > manual/Makefile | 3 +- > manual/install.texi | 21 ++ > manual/probes.texi | 2 +- > manual/tunables.texi | 184 ++++++++++++ > scripts/gen-tunables.awk | 157 +++++++++++ > sysdeps/mach/hurd/access.c | 20 +- > sysdeps/mach/hurd/dl-sysdep.c | 8 + > sysdeps/nacl/access.c | 16 +- > sysdeps/nacl/nacl-interfaces.h | 4 + > sysdeps/unix/access_noerrno.c | 38 +++ > sysdeps/unix/sysv/linux/generic/access.c | 19 +- > 39 files changed, 1469 insertions(+), 46 deletions(-) > create mode 100644 README.tunables > create mode 100644 elf/dl-tunable-types.h > create mode 100644 elf/dl-tunables.c > create mode 100644 elf/dl-tunables.h > create mode 100644 elf/dl-tunables.list > create mode 100644 io/access_noerrno.c > create mode 100644 malloc/tst-malloc-usable-static-tunables.c > create mode 100644 malloc/tst-malloc-usable-static.c > create mode 100644 malloc/tst-malloc-usable-tunables.c > create mode 100644 manual/tunables.texi > create mode 100644 scripts/gen-tunables.awk > create mode 100644 sysdeps/unix/access_noerrno.c >