[GIT PULL] perf/urgent improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

Best regards,

- Arnaldo

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

The following changes since commit b3c303be4c35856945cb17ec639b94637447dae2:

  Merge tag 'perf-urgent-for-mingo-5.3-20190729' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent (2019-07-29 23:24:07 +0200)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-urgent-for-mingo-5.3-20190808

for you to fetch changes up to 8e6e5bea2e34c61291d00cb3f47560341aa84bc3:

  perf pmu-events: Fix missing "cpu_clk_unhalted.core" event (2019-08-08 15:41:37 -0300)

----------------------------------------------------------------
perf/urgent fixes:

db-export:

  Adrian Hunter:

  - Fix thread__exec_comm() picking of main thread COMM for pre-existing,
    synthesized from /proc data records.

annotate:

  Arnaldo Carvalho de Melo:

  - Fix printing of unaugmented disassembled instructions from BPF, some
    lines were leaving leftovers from the previous screen, due to use of
    newlines by binutils's libopcode disassembler.

perf ftrace:

  He Zhe:

  - Fix cpumask problems when only one CPU is present.

PMU events:

  Jin Yao:

  - Add missing "cpu_clk_unhalted.core" event.

perf bench:

  Jiri Olsa:

  - Fix cpu0 binding in the NUMA benchmarks.

s390:

  Thomas Richter:

  - Fix module size calculations.

build system:

  Masanari Iida:

  - Fix a typo in a variable name in the Documentation Makefile

misc:

  Ian Rogers:

  - Fix include paths in ui directory.

Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>

----------------------------------------------------------------
Adrian Hunter (1):
      perf db-export: Fix thread__exec_comm()

Arnaldo Carvalho de Melo (1):
      perf annotate: Fix printing of unaugmented disassembled instructions from BPF

He Zhe (2):
      perf ftrace: Fix failure to set cpumask when only one cpu is present
      perf cpumap: Fix writing to illegal memory in handling cpumap mask

Ian Rogers (1):
      perf tools: Fix include paths in ui directory

Jin Yao (1):
      perf pmu-events: Fix missing "cpu_clk_unhalted.core" event

Jiri Olsa (1):
      perf bench numa: Fix cpu0 binding

Masanari Iida (1):
      perf tools: Fix a typo in a variable name in the Documentation Makefile

Thomas Richter (2):
      perf record: Fix module size on s390
      perf annotate: Fix s390 gap between kernel end and module start

 tools/perf/Documentation/Makefile   |  2 +-
 tools/perf/arch/s390/util/machine.c | 31 ++++++++++++++++++++++++++++++-
 tools/perf/bench/numa.c             |  6 ++++--
 tools/perf/builtin-ftrace.c         |  2 +-
 tools/perf/pmu-events/jevents.c     |  1 +
 tools/perf/ui/browser.c             |  9 +++++----
 tools/perf/ui/tui/progress.c        |  2 +-
 tools/perf/util/annotate.c          |  2 +-
 tools/perf/util/cpumap.c            |  5 ++++-
 tools/perf/util/machine.c           |  3 ++-
 tools/perf/util/machine.h           |  2 +-
 tools/perf/util/symbol.c            |  7 ++++++-
 tools/perf/util/symbol.h            |  1 +
 tools/perf/util/thread.c            | 12 +++++++++++-
 14 files changed, 69 insertions(+), 16 deletions(-)

Test results:

The first ones are container 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.

Clearlinux is failing when building with libpython, but that is not a perf
regression, will try to remove one compiler warning that is causing the problem
when building some of the glue code files in the python files, outside perf.

  # export PERF_TARBALL=http://192.168.124.1/perf/perf-5.3.0-rc2.tar.xz
  # dm
   1 alpine:3.4                    : Ok   gcc (Alpine 5.3.0) 5.3.0, clang version 3.8.0 (tags/RELEASE_380/final)
   2 alpine:3.5                    : Ok   gcc (Alpine 6.2.1) 6.2.1 20160822, clang version 3.8.1 (tags/RELEASE_381/final)
   3 alpine:3.6                    : Ok   gcc (Alpine 6.3.0) 6.3.0, clang version 4.0.0 (tags/RELEASE_400/final)
   4 alpine:3.7                    : Ok   gcc (Alpine 6.4.0) 6.4.0, Alpine clang version 5.0.0 (tags/RELEASE_500/final) (based on LLVM 5.0.0)
   5 alpine:3.8                    : Ok   gcc (Alpine 6.4.0) 6.4.0, Alpine clang version 5.0.1 (tags/RELEASE_501/final) (based on LLVM 5.0.1)
   6 alpine:3.9                    : Ok   gcc (Alpine 8.3.0) 8.3.0, Alpine clang version 5.0.1 (tags/RELEASE_502/final) (based on LLVM 5.0.1)
   7 alpine:3.10                   : Ok   gcc (Alpine 8.3.0) 8.3.0, Alpine clang version 8.0.0 (tags/RELEASE_800/final) (based on LLVM 8.0.0)
   8 alpine:edge                   : Ok   gcc (Alpine 8.3.0) 8.3.0, Alpine clang version 8.0.0 (tags/RELEASE_800/final) (based on LLVM 8.0.0)
   9 amazonlinux:1                 : Ok   gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2), clang version 3.6.2 (tags/RELEASE_362/final)
  10 amazonlinux:2                 : Ok   gcc (GCC) 7.3.1 20180303 (Red Hat 7.3.1-5), clang version 7.0.1 (Amazon Linux 2 7.0.1-1.amzn2.0.2)
  11 android-ndk:r12b-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
  12 android-ndk:r15c-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
  13 centos:5                      : Ok   gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-55)
  14 centos:6                      : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23)
  15 centos:7                      : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-36), clang version 3.4.2 (tags/RELEASE_34/dot2-final)
  16 clearlinux:latest             : Ok   gcc (Clear Linux OS for Intel Architecture) 9.1.1 20190724 gcc-9-branch@273755, clang version 8.0.0 (tags/RELEASE_800/final)
  17 debian:8                      : Ok   gcc (Debian 4.9.2-10+deb8u2) 4.9.2, Debian clang version 3.5.0-10 (tags/RELEASE_350/final) (based on LLVM 3.5.0)
  18 debian:9                      : Ok   gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516, clang version 3.8.1-24 (tags/RELEASE_381/final)
  19 debian:10                     : Ok   gcc (Debian 8.3.0-6) 8.3.0, clang version 7.0.1-8 (tags/RELEASE_701/final)
  20 debian:experimental           : Ok   gcc (Debian 8.3.0-19) 8.3.0, clang version 7.0.1-8 (tags/RELEASE_701/final)
  21 debian:experimental-x-arm64   : Ok   aarch64-linux-gnu-gcc (Debian 8.3.0-19) 8.3.0
  22 debian:experimental-x-mips    : Ok   mips-linux-gnu-gcc (Debian 8.3.0-19) 8.3.0
  23 debian:experimental-x-mips64  : Ok   mips64-linux-gnuabi64-gcc (Debian 8.3.0-7) 8.3.0
  24 debian:experimental-x-mipsel  : Ok   mipsel-linux-gnu-gcc (Debian 8.3.0-19) 8.3.0
  25 fedora:20                     : Ok   gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7), clang version 3.4.2 (tags/RELEASE_34/dot2-final)
  26 fedora:22                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.5.0 (tags/RELEASE_350/final)
  27 fedora:23                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.7.0 (tags/RELEASE_370/final)
  28 fedora:24                     : Ok   gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1), clang version 3.8.1 (tags/RELEASE_381/final)
  29 fedora:24-x-ARC-uClibc        : Ok   arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
  30 fedora:25                     : Ok   gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1), clang version 3.9.1 (tags/RELEASE_391/final)
  31 fedora:26                     : Ok   gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2), clang version 4.0.1 (tags/RELEASE_401/final)
  32 fedora:27                     : Ok   gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6), clang version 5.0.2 (tags/RELEASE_502/final)
  33 fedora:28                     : Ok   gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2), clang version 6.0.1 (tags/RELEASE_601/final)
  34 fedora:29                     : Ok   gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2), clang version 7.0.1 (Fedora 7.0.1-6.fc29)
  35 fedora:30                     : Ok   gcc (GCC) 9.1.1 20190503 (Red Hat 9.1.1-1), clang version 8.0.0 (Fedora 8.0.0-1.fc30)
  36 fedora:31                     : OK   gcc (GCC) 9.1.1 20190605 (Red Hat 9.1.1-2), clang version 8.0.0 (Fedora 8.0.0-3.fc31.1)
  37 fedora:rawhide                : Ok   gcc (GCC) 9.1.1 20190605 (Red Hat 9.1.1-2), clang version 8.0.0 (Fedora 8.0.0-3.fc31.1)
  38 gentoo-stage3-amd64:latest    : Ok   gcc (Gentoo 8.3.0-r1 p1.1) 8.3.0
  39 mageia:5                      : Ok   gcc (GCC) 4.9.2, clang version 3.5.2 (tags/RELEASE_352/final)
  40 mageia:6                      : Ok   gcc (Mageia 5.5.0-1.mga6) 5.5.0, clang version 3.9.1 (tags/RELEASE_391/final)
  41 mageia:7                      : Ok   gcc (Mageia 8.3.1-0.20190524.1.mga7) 8.3.1 20190524, clang version 8.0.0 (Mageia 8.0.0-1.mga7)
  42 manjaro:latest                : Ok   gcc (GCC) 9.1.0, clang version 8.0.1 (tags/RELEASE_801/final)
  43 opensuse:15.0                 : Ok   gcc (SUSE Linux) 7.4.1 20190424 [gcc-7-branch revision 270538], clang version 5.0.1 (tags/RELEASE_501/final 312548)
  44 opensuse:15.1                 : Ok   gcc (SUSE Linux) 7.4.0, clang version 7.0.1 (tags/RELEASE_701/final 349238)
  45 opensuse:42.3                 : Ok   gcc (SUSE Linux) 4.8.5, clang version 3.8.0 (tags/RELEASE_380/final 262553)
  46 opensuse:tumbleweed           : Ok   gcc (SUSE Linux) 9.1.1 20190723 [gcc-9-branch revision 273734], clang version 8.0.0 (tags/RELEASE_800/final 356365)
  47 oraclelinux:6                 : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23.0.1)
  48 oraclelinux:7                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-36.0.1), clang version 3.4.2 (tags/RELEASE_34/dot2-final)
  49 oraclelinux:8                 : Ok   gcc (GCC) 8.2.1 20180905 (Red Hat 8.2.1-3.0.1), clang version 7.0.1 (tags/RELEASE_701/final)
  50 ubuntu:12.04                  : Ok   gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
  51 ubuntu:14.04                  : Ok   gcc (Ubuntu 4.8.4-2ubuntu1~14.04.4) 4.8.4, Ubuntu clang version 3.4-1ubuntu3 (tags/RELEASE_34/final) (based on LLVM 3.4)
  52 ubuntu:16.04                  : Ok   gcc (Ubuntu 5.4.0-6ubuntu1~16.04.11) 5.4.0 20160609, clang version 3.8.0-2ubuntu4 (tags/RELEASE_380/final)
  53 ubuntu:16.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  54 ubuntu:16.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  55 ubuntu:16.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  56 ubuntu:16.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  57 ubuntu:16.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  58 ubuntu:16.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  59 ubuntu:18.04                  : Ok   gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0, clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
  60 ubuntu:18.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.4.0-1ubuntu1~18.04.1) 7.4.0
  61 ubuntu:18.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 7.4.0-1ubuntu1~18.04.1) 7.4.0
  62 ubuntu:18.04-x-m68k           : Ok   m68k-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
  63 ubuntu:18.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
  64 ubuntu:18.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
  65 ubuntu:18.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
  66 ubuntu:18.04-x-riscv64        : Ok   riscv64-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
  67 ubuntu:18.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
  68 ubuntu:18.04-x-sh4            : Ok   sh4-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
  69 ubuntu:18.04-x-sparc64        : Ok   sparc64-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
  70 ubuntu:18.10                  : Ok   gcc (Ubuntu 8.3.0-6ubuntu1~18.10.1) 8.3.0, clang version 7.0.0-3 (tags/RELEASE_700/final)
  71 ubuntu:19.04                  : Ok   gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0, clang version 8.0.0-3 (tags/RELEASE_800/final)
  72 ubuntu:19.04-x-alpha          : Ok   alpha-linux-gnu-gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0
  73 ubuntu:19.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 8.3.0-6ubuntu1) 8.3.0
  74 ubuntu:19.04-x-hppa           : Ok   hppa-linux-gnu-gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0
  75 ubuntu:19.10                  : Ok   gcc (Ubuntu 9.1.0-9ubuntu2) 9.1.0, clang version 8.0.1-+rc4-1 (tags/RELEASE_801/rc4)

  # uname -a
  Linux quaco 5.2.6-200.fc30.x86_64 #1 SMP Mon Aug 5 13:20:47 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
  # git log --oneline -1
  8e6e5bea2e34 perf pmu-events: Fix missing "cpu_clk_unhalted.core" event
  # perf version --build-options
  perf version 5.3.rc2.g8e6e5bea2e34
                   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
                     aio: [ on  ]  # HAVE_AIO_SUPPORT
                    zstd: [ on  ]  # HAVE_ZSTD_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: Watchpoint                                            :
  22.1: Read Only Watchpoint                                : Skip
  22.2: Write Only Watchpoint                               : Ok
  22.3: Read / Write Watchpoint                             : Ok
  22.4: Modify Watchpoint                                   : Ok
  23: Number of exit events of a simple workload            : Ok
  24: Software clock events period values                   : Ok
  25: Object code reading                                   : Ok
  26: Sample parsing                                        : Ok
  27: Use a dummy software event to keep tracking           : Ok
  28: Parse with no sample_id_all bit set                   : Ok
  29: Filter hist entries                                   : Ok
  30: Lookup mmap thread                                    : Ok
  31: Share thread mg                                       : Ok
  32: Sort output of hist entries                           : Ok
  33: Cumulate child hist entries                           : Ok
  34: Track with sched_switch                               : Ok
  35: Filter fds with revents mask in a fdarray             : Ok
  36: Add fd to a fdarray, making it autogrow               : Ok
  37: kmod_path__parse                                      : Ok
  38: Thread map                                            : Ok
  39: LLVM search and compile                               :
  39.1: Basic BPF llvm compile                              : Ok
  39.2: kbuild searching                                    : Ok
  39.3: Compile source for BPF prologue generation          : Ok
  39.4: Compile source for BPF relocation                   : Ok
  40: Session topology                                      : Ok
  41: BPF filter                                            :
  41.1: Basic BPF filtering                                 : Ok
  41.2: BPF pinning                                         : Ok
  41.3: BPF prologue generation                             : Ok
  41.4: BPF relocation checker                              : Ok
  42: Synthesize thread map                                 : Ok
  43: Remove thread map                                     : Ok
  44: Synthesize cpu map                                    : Ok
  45: Synthesize stat config                                : Ok
  46: Synthesize stat                                       : Ok
  47: Synthesize stat round                                 : Ok
  48: Synthesize attr update                                : Ok
  49: Event times                                           : Ok
  50: Read backward ring buffer                             : Ok
  51: Print cpu map                                         : Ok
  52: Probe SDT events                                      : Ok
  53: is_printable_array                                    : Ok
  54: Print bitmap                                          : Ok
  55: perf hooks                                            : Ok
  56: builtin clang support                                 : Skip (not compiled in)
  57: unit_number__scnprintf                                : Ok
  58: mem2node                                              : Ok
  59: time utils                                            : Ok
  60: map_groups__merge_in                                  : Ok
  61: x86 rdpmc                                             : Ok
  62: Convert perf time to TSC                              : Ok
  63: DWARF unwind                                          : Ok
  64: x86 instruction decoder - new instructions            : Ok
  65: Intel PT packet decoder                               : Ok
  66: x86 bp modify                                         : Ok
  67: probe libc's inet_pton & backtrace it with ping       : Ok
  68: Use vfs_getname probe to get syscall args filenames   : Ok
  69: Add vfs_getname probe to get syscall args filenames   : Ok
  70: Check open filename arg using perf trace + vfs_getname: Ok
  71: Zstd perf.data compression/decompression              : Ok

This is with the following patches that are upstream already, we'll get it at
the next merge with Linus':

  4be6e05c4d4c ("libbpf: Avoid designated initializers for unnamed union members")
  cdb2f9207109 ("libbpf: Fix endianness macro usage for some compilers")

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