[GIT,PULL,00/21] perf/core improvements and fixes
mbox

Message ID 20180820161602.6830-1-acme@kernel.org
State New, archived
Headers show

Pull-request

git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.19-20180820

Message

Arnaldo Carvalho de Melo Aug. 20, 2018, 4:15 p.m. UTC
Hi Ingo,

	Please consider pullimg,

- Arnaldo


Test results at the end of this message, as usual.

The following changes since commit 5804b11034a21e4287daaf017c5ad60ad7af8d67:

  Merge tag 'perf-core-for-mingo-4.19-20180815' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent (2018-08-18 13:11:51 +0200)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.19-20180820

for you to fetch changes up to 78303650e4cd873c6c4276c6fe3e768ff0b46d22:

  tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy' (2018-08-20 10:17:14 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

LLVM/clang/eBPF: (Arnaldo Carvalho de Melo)

- Allow passing options to llc in addition to to clang.

Hardware tracing: (Jack Henschel)

- Improve error message for PMU address filters, clarifying availability of
  that feature in hardware having hardware tracing such as Intel PT.

Python interface: (Jiri Olsa)

- Fix read_on_cpu() interface.

ELF/DWARF libraries: (Jiri Olsa)

- Fix handling of the combo compressed module file + decompressed associated
  debuginfo file.

Build (Rasmus Villemoes)

- Disable parallelism for 'make clean', avoiding multiple submakes deleting
  the same files and causing the build to fail on systems such as Yocto.

Kernel ABI copies: (Arnaldo Carvalho de Melo)

- Update tools's copy of x86's cpufeatures.h.

- Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy'.

Miscellaneous: (Steven Rostedt)

- Change libtraceevent to SPDX License format.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (3):
      perf llvm: Allow passing options to llc in addition to clang
      tools arch x86: Update tools's copy of cpufeatures.h
      tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy'

Jack Henschel (1):
      perf parser: Improve error message for PMU address filters

Jiri Olsa (15):
      perf tools: Get rid of dso__needs_decompress() call in read_object_code()
      perf tools: Get rid of dso__needs_decompress() call in symbol__disassemble()
      perf tools: Get rid of dso__needs_decompress() call in __open_dso()
      perf tools: Make decompress_to_file() function static
      perf tools: Make is_supported_compression() static
      perf tools: Add compression id into 'struct kmod_path'
      perf tools: Store compression id into struct dso
      perf tools: Use compression id in decompress_kmodule()
      perf tools: Move the temp file processing into decompress_kmodule
      perf tools: Add is_compressed callback to compressions array
      perf tools: Add lzma_is_compressed function
      perf tools: Add gzip_is_compressed function
      perf tools: Remove ext from struct kmod_path
      perf mmap: Store real cpu number in 'struct perf_mmap'
      perf python: Fix pyrf_evlist__read_on_cpu() interface

Rasmus Villemoes (1):
      perf tools: Disable parallelism for 'make clean'

Steven Rostedt (VMware) (1):
      tools lib traceevent: Change to SPDX License format

 tools/arch/x86/include/asm/cpufeatures.h |   3 +-
 tools/arch/x86/lib/memcpy_64.S           |   2 +-
 tools/lib/traceevent/event-parse.c       |  16 +---
 tools/lib/traceevent/event-plugin.c      |  16 +---
 tools/lib/traceevent/event-utils.h       |  16 +---
 tools/lib/traceevent/kbuffer-parse.c     |  17 +---
 tools/lib/traceevent/parse-filter.c      |  16 +---
 tools/lib/traceevent/parse-utils.c       |  16 +---
 tools/lib/traceevent/trace-seq.c         |  16 +---
 tools/perf/Makefile                      |   4 +-
 tools/perf/tests/code-reading.c          |   4 +-
 tools/perf/tests/kmod-path.c             | 136 +++++++++++++++----------------
 tools/perf/util/annotate.c               |   4 +-
 tools/perf/util/compress.h               |   2 +
 tools/perf/util/dso.c                    | 111 ++++++++++++-------------
 tools/perf/util/dso.h                    |  13 ++-
 tools/perf/util/evlist.c                 |   2 +-
 tools/perf/util/llvm-utils.c             |  31 ++++++-
 tools/perf/util/llvm-utils.h             |   9 ++
 tools/perf/util/lzma.c                   |  20 +++++
 tools/perf/util/machine.c                |   4 +-
 tools/perf/util/mmap.c                   |   3 +-
 tools/perf/util/mmap.h                   |   3 +-
 tools/perf/util/parse-events.c           |  20 ++---
 tools/perf/util/python.c                 |  20 ++++-
 tools/perf/util/zlib.c                   |  18 ++++
 26 files changed, 256 insertions(+), 266 deletions(-)

Test results:

The first ones are container (docker) based builds of tools/perf with
and without libelf support.  Where clang is available, it is also used
to build perf with/without libelf, and building with LIBCLANGLLVM=1
(built-in clang) with gcc and clang when clang and its devel libraries
are installed.

The objtool and samples/bpf/ builds are disabled now that I'm switching from
using the sources in a local volume to fetching them from a http server to
build it inside the container, to make it easier to build in a container cluster.
Those will come back later.

Several are cross builds, the ones with -x-ARCH and the android one, and those
may not have all the features built, due to lack of multi-arch devel packages,
available and being used so far on just a few, like
debian:experimental-x-{arm64,mipsel}.

The 'perf test' one will perform a variety of tests exercising
tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf commands
with a variety of command line event specifications to then intercept the
sys_perf_event syscall to check that the perf_event_attr fields are set up as
expected, among a variety of other unit tests.

Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/
with a variety of feature sets, exercising the build with an incomplete set of
features as well as with a complete one. It is planned to have it run on each
of the containers mentioned above, using some container orchestration
infrastructure. Get in contact if interested in helping having this in place.

  # dm
   1 alpine:3.4                    : Ok   gcc (Alpine 5.3.0) 5.3.0
   2 alpine:3.5                    : Ok   gcc (Alpine 6.2.1) 6.2.1 20160822
   3 alpine:3.6                    : Ok   gcc (Alpine 6.3.0) 6.3.0
   4 alpine:3.7                    : Ok   gcc (Alpine 6.4.0) 6.4.0
   5 alpine:3.8                    : Ok   gcc (Alpine 6.4.0) 6.4.0
   6 alpine:edge                   : Ok   gcc (Alpine 6.4.0) 6.4.0
   7 amazonlinux:1                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-28)
   8 amazonlinux:2                 : Ok   gcc (GCC) 7.3.1 20180303 (Red Hat 7.3.1-5)
   9 android-ndk:r12b-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
  10 android-ndk:r15c-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
  11 centos:5                      : Ok   gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-55)
  12 centos:6                      : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23)
  13 centos:7                      : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-28)
  14 debian:7                      : Ok   gcc (Debian 4.7.2-5) 4.7.2
  15 debian:8                      : Ok   gcc (Debian 4.9.2-10+deb8u1) 4.9.2
  16 debian:9                      : Ok   gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
  17 debian:experimental           : Ok   gcc (Debian 8.2.0-4) 8.2.0
  18 debian:experimental-x-arm64   : Ok   aarch64-linux-gnu-gcc (Debian 8.1.0-12) 8.1.0
  19 debian:experimental-x-mips    : Ok   mips-linux-gnu-gcc (Debian 8.1.0-12) 8.1.0
  20 debian:experimental-x-mips64  : Ok   mips64-linux-gnuabi64-gcc (Debian 8.1.0-12) 8.1.0
  21 debian:experimental-x-mipsel  : Ok   mipsel-linux-gnu-gcc (Debian 8.1.0-12) 8.1.0
  22 fedora:20                     : Ok   gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)
  23 fedora:21                     : Ok   gcc (GCC) 4.9.2 20150212 (Red Hat 4.9.2-6)
  24 fedora:22                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  25 fedora:23                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  26 fedora:24                     : Ok   gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1)
  27 fedora:24-x-ARC-uClibc        : Ok   arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
  28 fedora:25                     : Ok   gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1)
  29 fedora:26                     : Ok   gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2)
  30 fedora:27                     : Ok   gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6)
  31 fedora:28                     : Ok   gcc (GCC) 8.1.1 20180712 (Red Hat 8.1.1-5)
  32 fedora:rawhide                : Ok   gcc (GCC) 8.0.1 20180324 (Red Hat 8.0.1-0.20)
  33 gentoo-stage3-amd64:latest    : Ok   gcc (Gentoo 7.3.0-r3 p1.4) 7.3.0
  34 mageia:5                      : Ok   gcc (GCC) 4.9.2
  35 mageia:6                      : Ok   gcc (Mageia 5.5.0-1.mga6) 5.5.0
  36 opensuse:13.2                 : Ok   gcc (SUSE Linux) 4.8.3 20140627 [gcc-4_8-branch revision 212064]
  37 opensuse:42.1                 : Ok   gcc (SUSE Linux) 4.8.5
  38 opensuse:42.2                 : Ok   gcc (SUSE Linux) 4.8.5
  39 opensuse:42.3                 : Ok   gcc (SUSE Linux) 4.8.5
  40 opensuse:tumbleweed           : Ok   gcc (SUSE Linux) 7.3.1 20180323 [gcc-7-branch revision 258812]
  41 oraclelinux:6                 : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23.0.1)
  42 oraclelinux:7                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-28.0.1)
  43 ubuntu:12.04.5                : Ok   gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
  44 ubuntu:14.04.4                : Ok   gcc (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4
  45 ubuntu:14.04.4-x-linaro-arm64 : Ok   aarch64-linux-gnu-gcc (Linaro GCC 5.5-2017.10) 5.5.0
  46 ubuntu:16.04                  : Ok   gcc (Ubuntu 5.4.0-6ubuntu1~16.04.10) 5.4.0 20160609
  47 ubuntu:16.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  48 ubuntu:16.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  49 ubuntu:16.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  50 ubuntu:16.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  51 ubuntu:16.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  52 ubuntu:16.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  53 ubuntu:16.10                  : Ok   gcc (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005
  54 ubuntu:17.10                  : Ok   gcc (Ubuntu 7.2.0-8ubuntu3.2) 7.2.0
  55 ubuntu:18.04                  : Ok   gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
  56 ubuntu:18.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.3.0-16ubuntu3) 7.3.0
  57 ubuntu:18.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 7.3.0-16ubuntu3) 7.3.0
  58 ubuntu:18.04-x-m68k           : Ok   m68k-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
  59 ubuntu:18.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
  60 ubuntu:18.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
  61 ubuntu:18.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
  62 ubuntu:18.04-x-riscv64        : Ok   riscv64-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
  63 ubuntu:18.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
  64 ubuntu:18.04-x-sh4            : Ok   sh4-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
  65 ubuntu:18.04-x-sparc64        : Ok   sparc64-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
  66 ubuntu:18.10                  : Ok   gcc (Ubuntu 8.2.0-1ubuntu2) 8.2.0
  # 

  # uname -a
  Linux seventh 4.18.0-02978-g1eb46908b35d #1 SMP Wed Aug 15 16:55:17 -03 2018 x86_64 x86_64 x86_64 GNU/Linux
  # git log --oneline -1
  78303650e4cd (HEAD -> perf/core) tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy'
  # perf version --build-options
  perf version 4.18.g783036
                   dwarf: [ on  ]  # HAVE_DWARF_SUPPORT
      dwarf_getlocations: [ on  ]  # HAVE_DWARF_GETLOCATIONS_SUPPORT
                   glibc: [ on  ]  # HAVE_GLIBC_SUPPORT
                    gtk2: [ on  ]  # HAVE_GTK2_SUPPORT
           syscall_table: [ on  ]  # HAVE_SYSCALL_TABLE_SUPPORT
                  libbfd: [ on  ]  # HAVE_LIBBFD_SUPPORT
                  libelf: [ on  ]  # HAVE_LIBELF_SUPPORT
                 libnuma: [ on  ]  # HAVE_LIBNUMA_SUPPORT
  numa_num_possible_cpus: [ on  ]  # HAVE_LIBNUMA_SUPPORT
                 libperl: [ on  ]  # HAVE_LIBPERL_SUPPORT
               libpython: [ on  ]  # HAVE_LIBPYTHON_SUPPORT
                libslang: [ on  ]  # HAVE_SLANG_SUPPORT
               libcrypto: [ on  ]  # HAVE_LIBCRYPTO_SUPPORT
               libunwind: [ on  ]  # HAVE_LIBUNWIND_SUPPORT
      libdw-dwarf-unwind: [ on  ]  # HAVE_DWARF_SUPPORT
                    zlib: [ on  ]  # HAVE_ZLIB_SUPPORT
                    lzma: [ on  ]  # HAVE_LZMA_SUPPORT
               get_cpuid: [ on  ]  # HAVE_AUXTRACE_SUPPORT
                     bpf: [ on  ]  # HAVE_LIBBPF_SUPPORT
  # perf test
   1: vmlinux symtab matches kallsyms                       : Ok
   2: Detect openat syscall event                           : Ok
   3: Detect openat syscall event on all cpus               : Ok
   4: Read samples using the mmap interface                 : Ok
   5: Test data source output                               : Ok
   6: Parse event definition strings                        : Ok
   7: Simple expression parser                              : Ok
   8: PERF_RECORD_* events & perf_sample fields             : Ok
   9: Parse perf pmu format                                 : Ok
  10: DSO data read                                         : Ok
  11: DSO data cache                                        : Ok
  12: DSO data reopen                                       : Ok
  13: Roundtrip evsel->name                                 : Ok
  14: Parse sched tracepoints fields                        : Ok
  15: syscalls:sys_enter_openat event fields                : Ok
  16: Setup struct perf_event_attr                          : Ok
  17: Match and link multiple hists                         : Ok
  18: 'import perf' in python                               : Ok
  19: Breakpoint overflow signal handler                    : Ok
  20: Breakpoint overflow sampling                          : Ok
  21: Breakpoint accounting                                 : Ok
  22: Number of exit events of a simple workload            : Ok
  23: Software clock events period values                   : Ok
  24: Object code reading                                   : Ok
  25: Sample parsing                                        : Ok
  26: Use a dummy software event to keep tracking           : Ok
  27: Parse with no sample_id_all bit set                   : Ok
  28: Filter hist entries                                   : Ok
  29: Lookup mmap thread                                    : Ok
  30: Share thread mg                                       : Ok
  31: Sort output of hist entries                           : Ok
  32: Cumulate child hist entries                           : Ok
  33: Track with sched_switch                               : Ok
  34: Filter fds with revents mask in a fdarray             : Ok
  35: Add fd to a fdarray, making it autogrow               : Ok
  36: kmod_path__parse                                      : Ok
  37: Thread map                                            : Ok
  38: LLVM search and compile                               :
  38.1: Basic BPF llvm compile                              : Ok
  38.2: kbuild searching                                    : Ok
  38.3: Compile source for BPF prologue generation          : Ok
  38.4: Compile source for BPF relocation                   : Ok
  39: Session topology                                      : Ok
  40: BPF filter                                            :
  40.1: Basic BPF filtering                                 : Ok
  40.2: BPF pinning                                         : Ok
  40.3: BPF prologue generation                             : Ok
  40.4: BPF relocation checker                              : Ok
  41: Synthesize thread map                                 : Ok
  42: Remove thread map                                     : Ok
  43: Synthesize cpu map                                    : Ok
  44: Synthesize stat config                                : Ok
  45: Synthesize stat                                       : Ok
  46: Synthesize stat round                                 : Ok
  47: Synthesize attr update                                : Ok
  48: Event times                                           : Ok
  49: Read backward ring buffer                             : Ok
  50: Print cpu map                                         : Ok
  51: Probe SDT events                                      : Ok
  52: is_printable_array                                    : Ok
  53: Print bitmap                                          : Ok
  54: perf hooks                                            : Ok
  55: builtin clang support                                 : Skip (not compiled in)
  56: unit_number__scnprintf                                : Ok
  57: mem2node                                              : Ok
  58: x86 rdpmc                                             : Ok
  59: Convert perf time to TSC                              : Ok
  60: DWARF unwind                                          : Ok
  61: x86 instruction decoder - new instructions            : Ok
  62: probe libc's inet_pton & backtrace it with ping       : Ok
  63: Check open filename arg using perf trace + vfs_getname: Ok
  64: Use vfs_getname probe to get syscall args filenames   : Ok
  65: Add vfs_getname probe to get syscall args filenames   : Ok
  # 

  $ make -C tools/perf build-test
  make: Entering directory '/home/acme/git/perf/tools/perf'
  - tarpkg: ./tests/perf-targz-src-pkg .
           make_no_libbionic_O: make NO_LIBBIONIC=1
              make_no_libbpf_O: make NO_LIBBPF=1
   make_install_prefix_slash_O: make install prefix=/tmp/krava/
            make_no_demangle_O: make NO_DEMANGLE=1
               make_no_slang_O: make NO_SLANG=1
                  make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
                   make_help_O: make help
            make_no_libaudit_O: make NO_LIBAUDIT=1
                  make_debug_O: make DEBUG=1
                 make_static_O: make LDFLAGS=-static
         make_install_prefix_O: make install prefix=/tmp/krava
                   make_tags_O: make tags
            make_install_bin_O: make install-bin
                make_no_gtk2_O: make NO_GTK2=1
            make_no_auxtrace_O: make NO_AUXTRACE=1
              make_clean_all_O: make clean all
           make_no_libpython_O: make NO_LIBPYTHON=1
                 make_perf_o_O: make perf.o
                make_install_O: make install
           make_no_backtrace_O: make NO_BACKTRACE=1
                    make_doc_O: make doc
             make_no_libnuma_O: make NO_LIBNUMA=1
             make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
       make_util_pmu_bison_o_O: make util/pmu-bison.o
           make_no_libunwind_O: make NO_LIBUNWIND=1
             make_util_map_o_O: make util/map.o
                   make_pure_O: make
             make_no_libperl_O: make NO_LIBPERL=1
              make_no_libelf_O: make NO_LIBELF=1
         make_with_clangllvm_O: make LIBCLANGLLVM=1
                make_no_newt_O: make NO_NEWT=1
  make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
        make_with_babeltrace_O: make LIBBABELTRACE=1
                make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1
  OK
  make: Leaving directory '/home/acme/git/perf/tools/perf'
  $

Comments

Ingo Molnar Aug. 23, 2018, 8:31 a.m. UTC | #1
* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pullimg,
> 
> - Arnaldo
> 
> 
> Test results at the end of this message, as usual.
> 
> The following changes since commit 5804b11034a21e4287daaf017c5ad60ad7af8d67:
> 
>   Merge tag 'perf-core-for-mingo-4.19-20180815' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent (2018-08-18 13:11:51 +0200)
> 
> are available in the Git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.19-20180820
> 
> for you to fetch changes up to 78303650e4cd873c6c4276c6fe3e768ff0b46d22:
> 
>   tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy' (2018-08-20 10:17:14 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> LLVM/clang/eBPF: (Arnaldo Carvalho de Melo)
> 
> - Allow passing options to llc in addition to to clang.
> 
> Hardware tracing: (Jack Henschel)
> 
> - Improve error message for PMU address filters, clarifying availability of
>   that feature in hardware having hardware tracing such as Intel PT.
> 
> Python interface: (Jiri Olsa)
> 
> - Fix read_on_cpu() interface.
> 
> ELF/DWARF libraries: (Jiri Olsa)
> 
> - Fix handling of the combo compressed module file + decompressed associated
>   debuginfo file.
> 
> Build (Rasmus Villemoes)
> 
> - Disable parallelism for 'make clean', avoiding multiple submakes deleting
>   the same files and causing the build to fail on systems such as Yocto.
> 
> Kernel ABI copies: (Arnaldo Carvalho de Melo)
> 
> - Update tools's copy of x86's cpufeatures.h.
> 
> - Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy'.
> 
> Miscellaneous: (Steven Rostedt)
> 
> - Change libtraceevent to SPDX License format.
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (3):
>       perf llvm: Allow passing options to llc in addition to clang
>       tools arch x86: Update tools's copy of cpufeatures.h
>       tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy'
> 
> Jack Henschel (1):
>       perf parser: Improve error message for PMU address filters
> 
> Jiri Olsa (15):
>       perf tools: Get rid of dso__needs_decompress() call in read_object_code()
>       perf tools: Get rid of dso__needs_decompress() call in symbol__disassemble()
>       perf tools: Get rid of dso__needs_decompress() call in __open_dso()
>       perf tools: Make decompress_to_file() function static
>       perf tools: Make is_supported_compression() static
>       perf tools: Add compression id into 'struct kmod_path'
>       perf tools: Store compression id into struct dso
>       perf tools: Use compression id in decompress_kmodule()
>       perf tools: Move the temp file processing into decompress_kmodule
>       perf tools: Add is_compressed callback to compressions array
>       perf tools: Add lzma_is_compressed function
>       perf tools: Add gzip_is_compressed function
>       perf tools: Remove ext from struct kmod_path
>       perf mmap: Store real cpu number in 'struct perf_mmap'
>       perf python: Fix pyrf_evlist__read_on_cpu() interface
> 
> Rasmus Villemoes (1):
>       perf tools: Disable parallelism for 'make clean'
> 
> Steven Rostedt (VMware) (1):
>       tools lib traceevent: Change to SPDX License format
> 
>  tools/arch/x86/include/asm/cpufeatures.h |   3 +-
>  tools/arch/x86/lib/memcpy_64.S           |   2 +-
>  tools/lib/traceevent/event-parse.c       |  16 +---
>  tools/lib/traceevent/event-plugin.c      |  16 +---
>  tools/lib/traceevent/event-utils.h       |  16 +---
>  tools/lib/traceevent/kbuffer-parse.c     |  17 +---
>  tools/lib/traceevent/parse-filter.c      |  16 +---
>  tools/lib/traceevent/parse-utils.c       |  16 +---
>  tools/lib/traceevent/trace-seq.c         |  16 +---
>  tools/perf/Makefile                      |   4 +-
>  tools/perf/tests/code-reading.c          |   4 +-
>  tools/perf/tests/kmod-path.c             | 136 +++++++++++++++----------------
>  tools/perf/util/annotate.c               |   4 +-
>  tools/perf/util/compress.h               |   2 +
>  tools/perf/util/dso.c                    | 111 ++++++++++++-------------
>  tools/perf/util/dso.h                    |  13 ++-
>  tools/perf/util/evlist.c                 |   2 +-
>  tools/perf/util/llvm-utils.c             |  31 ++++++-
>  tools/perf/util/llvm-utils.h             |   9 ++
>  tools/perf/util/lzma.c                   |  20 +++++
>  tools/perf/util/machine.c                |   4 +-
>  tools/perf/util/mmap.c                   |   3 +-
>  tools/perf/util/mmap.h                   |   3 +-
>  tools/perf/util/parse-events.c           |  20 ++---
>  tools/perf/util/python.c                 |  20 ++++-
>  tools/perf/util/zlib.c                   |  18 ++++
>  26 files changed, 256 insertions(+), 266 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo