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[PING 2][PATCH v5 0/6] glibc tunables
- From: Siddhesh Poyarekar <siddhesh at gotplt dot org>
- To: libc-alpha at sourceware dot org
- Cc: Carlos O'Donell <carlos at redhat dot com>
- Date: Tue, 8 Nov 2016 11:07:06 +0530
- Subject: [PING 2][PATCH v5 0/6] glibc tunables
- Authentication-results: sourceware.org; auth=none
- References: <1477320168-23397-1-git-send-email-siddhesh@sourceware.org> <85a6e4b3-21b1-3e50-bd5f-205f9b187eab@gotplt.org>
Ping!
On Thursday 03 November 2016 03:56 PM, Siddhesh Poyarekar wrote:
> 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
>>