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Author SHA1 Message Date
Paolo Bonzini c0623f5e5d Merge branch 'kvm-fixes' into 'next' 
Pick up bugfixes from 5.9, otherwise various tests fail.
 2020-10-21 18:05:58 -04:00
Paolo Bonzini 0c899c25d7 KVM: x86: do not attempt TSC synchronization on guest writes 
KVM special-cases writes to MSR_IA32_TSC so that all CPUs have
the same base for the TSC.  This logic is complicated, and we
do not want it to have any effect once the VM is started.

In particular, if any guest started to synchronize its TSCs
with writes to MSR_IA32_TSC rather than MSR_IA32_TSC_ADJUST,
the additional effect of kvm_write_tsc code would be uncharted
territory.

Therefore, this patch makes writes to MSR_IA32_TSC behave
essentially the same as writes to MSR_IA32_TSC_ADJUST when
they come from the guest.  A new selftest (which passes
both before and after the patch) checks the current semantics
of writes to MSR_IA32_TSC and MSR_IA32_TSC_ADJUST originating
from both the host and the guest.

Upcoming work to remove the special side effects
of host-initiated writes to MSR_IA32_TSC and MSR_IA32_TSC_ADJUST
will be able to build onto this test, adjusting the host side
to use the new APIs and achieve the same effect.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2020-09-28 07:59:52 -04:00
Alexander Graf d468706e31 KVM: selftests: Add test for user space MSR handling 
Now that we have the ability to handle MSRs from user space and also to
select which ones we do want to prevent in-kernel KVM code from handling,
let's add a selftest to show case and verify the API.

Signed-off-by: Alexander Graf <graf@amazon.com>

Message-Id: <20200925143422.21718-9-graf@amazon.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2020-09-28 07:58:45 -04:00
Sean Christopherson 7f3603b631 KVM: VMX: Rename RDTSCP secondary exec control name to insert "ENABLE" 
Rename SECONDARY_EXEC_RDTSCP to SECONDARY_EXEC_ENABLE_RDTSCP in
preparation for consolidating the logic for adjusting secondary exec
controls based on the guest CPUID model.

No functional change intended.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200923165048.20486-4-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2020-09-28 07:57:30 -04:00
Yang Weijiang 18391e5e9c selftests: kvm: Fix assert failure in single-step test 
This is a follow-up patch to fix an issue left in commit:
98b0bf0273
selftests: kvm: Use a shorter encoding to clear RAX

With the change in the commit, we also need to modify "xor" instruction
length from 3 to 2 in array ss_size accordingly to pass below check:

for (i = 0; i < (sizeof(ss_size) / sizeof(ss_size[0])); i++) {
        target_rip += ss_size[i];
        CLEAR_DEBUG();
        debug.control = KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_SINGLESTEP;
        debug.arch.debugreg[7] = 0x00000400;
        APPLY_DEBUG();
        vcpu_run(vm, VCPU_ID);
        TEST_ASSERT(run->exit_reason == KVM_EXIT_DEBUG &&
                    run->debug.arch.exception == DB_VECTOR &&
                    run->debug.arch.pc == target_rip &&
                    run->debug.arch.dr6 == target_dr6,
                    "SINGLE_STEP[%d]: exit %d exception %d rip 0x%llx "
                    "(should be 0x%llx) dr6 0x%llx (should be 0x%llx)",
                    i, run->exit_reason, run->debug.arch.exception,
                    run->debug.arch.pc, target_rip, run->debug.arch.dr6,
                    target_dr6);
}

Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Yang Weijiang <weijiang.yang@intel.com>
Message-Id: <20200826015524.13251-1-weijiang.yang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2020-09-23 10:23:56 -04:00
Paolo Bonzini 1b67fd086d KVM/arm64 fixes for Linux 5.9, take #1 
- Multiple stolen time fixes, with a new capability to match x86
 - Fix for hugetlbfs mappings when PUD and PMD are the same level
 - Fix for hugetlbfs mappings when PTE mappings are enforced
   (dirty logging, for example)
 - Fix tracing output of 64bit values
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Merge tag 'kvmarm-fixes-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for Linux 5.9, take #1

- Multiple stolen time fixes, with a new capability to match x86
- Fix for hugetlbfs mappings when PUD and PMD are the same level
- Fix for hugetlbfs mappings when PTE mappings are enforced
  (dirty logging, for example)
- Fix tracing output of 64bit values
 2020-09-11 13:12:11 -04:00
Linus Torvalds 59126901f2 perf tools fixes for v5.9: 2nd batch 
- Use uintptr_t when casting numbers to pointers
 
 - Keep output expected by 3rd parties: Turn off summary for interval
   mode by default.
 
 - BPF is in kernel space, make sure do_validate_kcore_modules() knows
   about that.
 
 - Explicitly call out event modifiers in the documentation.
 
 - Fix jevents() allocation of space for regular expressions.
 
 - Address libtraceevent build warnings on 32-bit arches.
 
 - Fix checking of functions returns using ERR_PTR() in 'perf bench'.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 
 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.
 
   # export PERF_TARBALL=http://192.168.122.1/perf/perf-5.9.0-rc3.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:3.11                   : Ok   gcc (Alpine 9.3.0) 9.3.0, Alpine clang version 9.0.0 (https://git.alpinelinux.org/aports f7f0d2c2b8bcd6a5843401a9a702029556492689) (based on LLVM 9.0.0)
    9 alpine:3.12                   : Ok   gcc (Alpine 9.3.0) 9.3.0, Alpine clang version 10.0.0 (https://gitlab.alpinelinux.org/alpine/aports.git 7445adce501f8473efdb93b17b5eaf2f1445ed4c)
   10 alpine:edge                   : Ok   gcc (Alpine 10.2.0) 10.2.0, Alpine clang version 10.0.1
   11 alt:p8                        : Ok   x86_64-alt-linux-gcc (GCC) 5.3.1 20151207 (ALT p8 5.3.1-alt3.M80P.1), clang version 3.8.0 (tags/RELEASE_380/final)
   12 alt:p9                        : Ok   x86_64-alt-linux-gcc (GCC) 8.4.1 20200305 (ALT p9 8.4.1-alt0.p9.1), clang version 10.0.0
   13 alt:sisyphus                  : Ok   x86_64-alt-linux-gcc (GCC) 9.3.1 20200518 (ALT Sisyphus 9.3.1-alt1), clang version 10.0.1
   14 amazonlinux:1                 : Ok   gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2), clang version 3.6.2 (tags/RELEASE_362/final)
   15 amazonlinux:2                 : Ok   gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-9), clang version 7.0.1 (Amazon Linux 2 7.0.1-1.amzn2.0.2)
   16 android-ndk:r12b-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   17 android-ndk:r15c-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   18 centos:6                      : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23)
   19 centos:7                      : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39)
   20 centos:8                      : Ok   gcc (GCC) 8.3.1 20191121 (Red Hat 8.3.1-5), clang version 9.0.1 (Red Hat 9.0.1-2.module_el8.2.0+309+0c7b6b03)
   21 clearlinux:latest             : Ok   gcc (Clear Linux OS for Intel Architecture) 10.2.1 20200812 releases/gcc-10.2.0-102-gc99b2c529b, clang version 10.0.1
   22 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)
   23 debian:9                      : Ok   gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516, clang version 3.8.1-24 (tags/RELEASE_381/final)
   24 debian:10                     : Ok   gcc (Debian 8.3.0-6) 8.3.0, clang version 7.0.1-8 (tags/RELEASE_701/final)
   25 debian:experimental           : Ok   gcc (Debian 10.2.0-5) 10.2.0, Debian clang version 11.0.0-+rc2-4
   26 debian:experimental-x-arm64   : Ok   aarch64-linux-gnu-gcc (Debian 10.2.0-3) 10.2.0
   27 debian:experimental-x-mips64  : Ok   mips64-linux-gnuabi64-gcc (Debian 9.3.0-8) 9.3.0
   28 debian:experimental-x-mipsel  : Ok   mipsel-linux-gnu-gcc (Debian 9.3.0-8) 9.3.0
   29 fedora:20                     : Ok   gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)
   30 fedora:22                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.5.0 (tags/RELEASE_350/final)
   31 fedora:23                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.7.0 (tags/RELEASE_370/final)
   32 fedora:24                     : Ok   gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1), clang version 3.8.1 (tags/RELEASE_381/final)
   33 fedora:24-x-ARC-uClibc        : Ok   arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
   34 fedora:25                     : Ok   gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1), clang version 3.9.1 (tags/RELEASE_391/final)
   35 fedora:26                     : Ok   gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2), clang version 4.0.1 (tags/RELEASE_401/final)
   36 fedora:27                     : Ok   gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6), clang version 5.0.2 (tags/RELEASE_502/final)
   37 fedora:28                     : Ok   gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2), clang version 6.0.1 (tags/RELEASE_601/final)
   38 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)
   39 fedora:30                     : Ok   gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2), clang version 8.0.0 (Fedora 8.0.0-3.fc30)
   40 fedora:30-x-ARC-glibc         : Ok   arc-linux-gcc (ARC HS GNU/Linux glibc toolchain 2019.03-rc1) 8.3.1 20190225
   41 fedora:30-x-ARC-uClibc        : Ok   arc-linux-gcc (ARCv2 ISA Linux uClibc toolchain 2019.03-rc1) 8.3.1 20190225
   42 fedora:31                     : Ok   gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2), clang version 9.0.1 (Fedora 9.0.1-2.fc31)
   43 fedora:32                     : Ok   gcc (GCC) 10.2.1 20200723 (Red Hat 10.2.1-1), clang version 10.0.0 (Fedora 10.0.0-2.fc32)
   44 fedora:rawhide                : FAIL gcc (GCC) 10.2.1 20200804 (Red Hat 10.2.1-2), clang version 11.0.0 (Fedora 11.0.0-0.2.rc1.fc33)
 
     util/scripting-engines/trace-event-python.c: In function 'python_start_script':
     util/scripting-engines/trace-event-python.c:1595:2: error: 'visibility' attribute ignored [-Werror=attributes]
      1595 |  PyMODINIT_FUNC (*initfunc)(void);
           |  ^~~~~~~~~~~~~~
 
   45 gentoo-stage3-amd64:latest    : Ok   gcc (Gentoo 9.3.0-r1 p3) 9.3.0
   46 mageia:5                      : Ok   gcc (GCC) 4.9.2, clang version 3.5.2 (tags/RELEASE_352/final)
   47 mageia:6                      : Ok   gcc (Mageia 5.5.0-1.mga6) 5.5.0, clang version 3.9.1 (tags/RELEASE_391/final)
   48 mageia:7                      : Ok   gcc (Mageia 8.4.0-1.mga7) 8.4.0, clang version 8.0.0 (Mageia 8.0.0-1.mga7)
   49 manjaro:latest                : Ok   gcc (GCC) 10.2.0, clang version 10.0.1
   50 opensuse:15.0                 : Ok   gcc (SUSE Linux) 7.4.1 20190905 [gcc-7-branch revision 275407], clang version 5.0.1 (tags/RELEASE_501/final 312548)
   51 opensuse:15.1                 : Ok   gcc (SUSE Linux) 7.5.0, clang version 7.0.1 (tags/RELEASE_701/final 349238)
   52 opensuse:15.2                 : Ok   gcc (SUSE Linux) 7.5.0, clang version 9.0.1
   53 opensuse:42.3                 : Ok   gcc (SUSE Linux) 4.8.5, clang version 3.8.0 (tags/RELEASE_380/final 262553)
   54 opensuse:tumbleweed           : Ok   gcc (SUSE Linux) 10.2.1 20200825 [revision c0746a1beb1ba073c7981eb09f55b3d993b32e5c], clang version 10.0.1
   55 oraclelinux:6                 : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23.0.1)
   56 oraclelinux:7                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39.0.5)
   57 oraclelinux:8                 : Ok   gcc (GCC) 8.3.1 20191121 (Red Hat 8.3.1-5.0.3), clang version 9.0.1 (Red Hat 9.0.1-2.0.1.module+el8.2.0+5599+9ed9ef6d)
   58 ubuntu:12.04                  : Ok   gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3, Ubuntu clang version 3.0-6ubuntu3 (tags/RELEASE_30/final) (based on LLVM 3.0)
   59 ubuntu:14.04                  : Ok   gcc (Ubuntu 4.8.4-2ubuntu1~14.04.4) 4.8.4
   60 ubuntu:16.04                  : Ok   gcc (Ubuntu 5.4.0-6ubuntu1~16.04.12) 5.4.0 20160609, clang version 3.8.0-2ubuntu4 (tags/RELEASE_380/final)
   61 ubuntu:16.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   62 ubuntu:16.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   63 ubuntu:16.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   64 ubuntu:16.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   65 ubuntu:16.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   66 ubuntu:16.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   67 ubuntu:18.04                  : Ok   gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0, clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
   68 ubuntu:18.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0
   69 ubuntu:18.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0
   70 ubuntu:18.04-x-m68k           : Ok   m68k-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   71 ubuntu:18.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   72 ubuntu:18.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   73 ubuntu:18.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   74 ubuntu:18.04-x-riscv64        : Ok   riscv64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   75 ubuntu:18.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   76 ubuntu:18.04-x-sh4            : Ok   sh4-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   77 ubuntu:18.04-x-sparc64        : Ok   sparc64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   78 ubuntu:19.10                  : Ok   gcc (Ubuntu 9.2.1-9ubuntu2) 9.2.1 20191008, clang version 8.0.1-3build1 (tags/RELEASE_801/final)
   79 ubuntu:20.04                  : Ok   gcc (Ubuntu 9.3.0-10ubuntu2) 9.3.0, clang version 10.0.0-4ubuntu1
   80 ubuntu:20.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu 10-20200411-0ubuntu1) 10.0.1 20200411 (experimental) [master revision bb87d5cc77d:75961caccb7:f883c46b4877f637e0fa5025b4d6b5c9040ec566]
   $
 
   # uname -a
   Linux five 5.9.0-rc3 #1 SMP Mon Aug 31 08:38:27 -03 2020 x86_64 x86_64 x86_64 GNU/Linux
   # git log --oneline -1
   830fadfd95 perf tools: Add bpf image check to __map__is_kmodule
   # perf version --build-options
   perf version 5.9.rc3.ge28f0104343d
                    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: PMU events                                            :
   10.1: PMU event table sanity                              : Ok
   10.2: PMU event map aliases                               : Ok
   10.3: Parsing of PMU event table metrics                  : Ok
   10.4: Parsing of PMU event table metrics with fake PMUs   : Ok
   11: DSO data read                                         : Ok
   12: DSO data cache                                        : Ok
   13: DSO data reopen                                       : Ok
   14: Roundtrip evsel->name                                 : Ok
   15: Parse sched tracepoints fields                        : Ok
   16: syscalls:sys_enter_openat event fields                : Ok
   17: Setup struct perf_event_attr                          : Ok
   18: Match and link multiple hists                         : Ok
   19: 'import perf' in python                               : Ok
   20: Breakpoint overflow signal handler                    : Ok
   21: Breakpoint overflow sampling                          : Ok
   22: Breakpoint accounting                                 : Ok
   23: Watchpoint                                            :
   23.1: Read Only Watchpoint                                : Skip
   23.2: Write Only Watchpoint                               : Ok
   23.3: Read / Write Watchpoint                             : Ok
   23.4: Modify Watchpoint                                   : Ok
   24: Number of exit events of a simple workload            : Ok
   25: Software clock events period values                   : Ok
   26: Object code reading                                   : Ok
   27: Sample parsing                                        : Ok
   28: Use a dummy software event to keep tracking           : Ok
   29: Parse with no sample_id_all bit set                   : Ok
   30: Filter hist entries                                   : Ok
   31: Lookup mmap thread                                    : Ok
   32: Share thread maps                                     : Ok
   33: Sort output of hist entries                           : Ok
   34: Cumulate child hist entries                           : Ok
   35: Track with sched_switch                               : Ok
   36: Filter fds with revents mask in a fdarray             : Ok
   37: Add fd to a fdarray, making it autogrow               : Ok
   38: kmod_path__parse                                      : Ok
   39: Thread map                                            : Ok
   40: LLVM search and compile                               :
   40.1: Basic BPF llvm compile                              : Ok
   40.2: kbuild searching                                    : Ok
   40.3: Compile source for BPF prologue generation          : Ok
   40.4: Compile source for BPF relocation                   : Ok
   41: Session topology                                      : Ok
   42: BPF filter                                            :
   42.1: Basic BPF filtering                                 : Ok
   42.2: BPF pinning                                         : Ok
   42.3: BPF prologue generation                             : Ok
   42.4: BPF relocation checker                              : Ok
   43: Synthesize thread map                                 : Ok
   44: Remove thread map                                     : Ok
   45: Synthesize cpu map                                    : Ok
   46: Synthesize stat config                                : Ok
   47: Synthesize stat                                       : Ok
   48: Synthesize stat round                                 : Ok
   49: Synthesize attr update                                : Ok
   50: Event times                                           : Ok
   51: Read backward ring buffer                             : Ok
   52: Print cpu map                                         : Ok
   53: Merge cpu map                                         : Ok
   54: Probe SDT events                                      : Ok
   55: is_printable_array                                    : Ok
   56: Print bitmap                                          : Ok
   57: perf hooks                                            : Ok
   58: builtin clang support                                 : Skip (not compiled in)
   59: unit_number__scnprintf                                : Ok
   60: mem2node                                              : Ok
   61: time utils                                            : Ok
   62: Test jit_write_elf                                    : Ok
   63: Test libpfm4 support                                  : Skip (not compiled in)
   64: Test api io                                           : Ok
   65: maps__merge_in                                        : Ok
   66: Demangle Java                                         : Ok
   67: Parse and process metrics                             : Ok
   68: x86 rdpmc                                             : Ok
   69: Convert perf time to TSC                              : Ok
   70: DWARF unwind                                          : Ok
   71: x86 instruction decoder - new instructions            : Ok
   72: Intel PT packet decoder                               : Ok
   73: x86 bp modify                                         : Ok
   74: probe libc's inet_pton & backtrace it with ping       : Ok
   75: Use vfs_getname probe to get syscall args filenames   : Ok
   76: Check open filename arg using perf trace + vfs_getname: Ok
   77: Zstd perf.data compression/decompression              : Ok
   78: Add vfs_getname probe to get syscall args filenames   : Ok
   #
 
   $ cd ~acme/git/perf ; git log --oneline -1 ; make -C tools/perf build-test
   830fadfd95 (HEAD -> perf/urgent, five/perf/urgent) perf tools: Add bpf image check to __map__is_kmodule
   make: Entering directory '/home/acme/git/perf/tools/perf'
   - tarpkg: ./tests/perf-targz-src-pkg .
             make_no_libaudit_O: make NO_LIBAUDIT=1
              make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
                    make_help_O: make help
                    make_tags_O: make tags
               make_no_libbpf_O: make NO_LIBBPF=1
            make_no_backtrace_O: make NO_BACKTRACE=1
    make_install_prefix_slash_O: make install prefix=/tmp/krava/
         make_no_libbpf_DEBUG_O: make NO_LIBBPF=1 DEBUG=1
             make_no_auxtrace_O: make NO_AUXTRACE=1
            make_no_libunwind_O: make NO_LIBUNWIND=1
        make_util_pmu_bison_o_O: make util/pmu-bison.o
         make_with_babeltrace_O: make LIBBABELTRACE=1
            make_no_libcrypto_O: make NO_LIBCRYPTO=1
                 make_no_newt_O: make NO_NEWT=1
            make_no_libpython_O: make NO_LIBPYTHON=1
          make_with_clangllvm_O: make LIBCLANGLLVM=1
                     make_doc_O: make doc
                   make_debug_O: make DEBUG=1
              make_no_libnuma_O: make NO_LIBNUMA=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 NO_LIBCAP=1 NO_SYSCALL_TABLE=1
                  make_static_O: make LDFLAGS=-static NO_PERF_READ_VDSO32=1 NO_PERF_READ_VDSOX32=1 NO_JVMTI=1
              make_no_libperl_O: make NO_LIBPERL=1
   make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
                  make_cscope_O: make cscope
          make_install_prefix_O: make install prefix=/tmp/krava
             make_no_demangle_O: make NO_DEMANGLE=1
                    make_pure_O: make
                   make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
               make_clean_all_O: make clean all
            make_no_libbionic_O: make NO_LIBBIONIC=1
          make_no_syscall_tbl_O: make NO_SYSCALL_TABLE=1
                make_no_slang_O: make NO_SLANG=1
             make_install_bin_O: make install-bin
                 make_install_O: make install
               make_no_libelf_O: make NO_LIBELF=1
              make_util_map_o_O: make util/map.o
                  make_perf_o_O: make perf.o
            make_with_libpfm4_O: make LIBPFM4=1
                 make_no_gtk2_O: make NO_GTK2=1
                  make_no_sdt_O: make NO_SDT=1
   OK
   make: Leaving directory '/home/acme/git/perf/tools/perf'
   $
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Merge tag 'perf-tools-fixes-for-v5.9-2020-09-03' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull more perf tools fixes from Arnaldo Carvalho de Melo:

 - Use uintptr_t when casting numbers to pointers

 - Keep output expected by 3rd parties: Turn off summary for interval
   mode by default.

 - BPF is in kernel space, make sure do_validate_kcore_modules() knows
   about that.

 - Explicitly call out event modifiers in the documentation.

 - Fix jevents() allocation of space for regular expressions.

 - Address libtraceevent build warnings on 32-bit arches.

 - Fix checking of functions returns using ERR_PTR() in 'perf bench'.

* tag 'perf-tools-fixes-for-v5.9-2020-09-03' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf tools: Add bpf image check to __map__is_kmodule
  perf record/stat: Explicitly call out event modifiers in the documentation
  perf bench: The do_run_multi_threaded() function must use IS_ERR(perf_session__new())
  perf stat: Turn off summary for interval mode by default
  libtraceevent: Fix build warning on 32-bit arches
  perf jevents: Fix suspicious code in fixregex()
  perf parse-events: Use uintptr_t when casting numbers to pointers
 2020-09-03 19:10:43 -07:00
Linus Torvalds 3e8d3bdc2a Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 
Pull networking fixes from David Miller:

 1) Use netif_rx_ni() when necessary in batman-adv stack, from Jussi
    Kivilinna.

 2) Fix loss of RTT samples in rxrpc, from David Howells.

 3) Memory leak in hns_nic_dev_probe(), from Dignhao Liu.

 4) ravb module cannot be unloaded, fix from Yuusuke Ashizuka.

 5) We disable BH for too lokng in sctp_get_port_local(), add a
    cond_resched() here as well, from Xin Long.

 6) Fix memory leak in st95hf_in_send_cmd, from Dinghao Liu.

 7) Out of bound access in bpf_raw_tp_link_fill_link_info(), from
    Yonghong Song.

 8) Missing of_node_put() in mt7530 DSA driver, from Sumera
    Priyadarsini.

 9) Fix crash in bnxt_fw_reset_task(), from Michael Chan.

10) Fix geneve tunnel checksumming bug in hns3, from Yi Li.

11) Memory leak in rxkad_verify_response, from Dinghao Liu.

12) In tipc, don't use smp_processor_id() in preemptible context. From
    Tuong Lien.

13) Fix signedness issue in mlx4 memory allocation, from Shung-Hsi Yu.

14) Missing clk_disable_prepare() in gemini driver, from Dan Carpenter.

15) Fix ABI mismatch between driver and firmware in nfp, from Louis
    Peens.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (110 commits)
  net/smc: fix sock refcounting in case of termination
  net/smc: reset sndbuf_desc if freed
  net/smc: set rx_off for SMCR explicitly
  net/smc: fix toleration of fake add_link messages
  tg3: Fix soft lockup when tg3_reset_task() fails.
  doc: net: dsa: Fix typo in config code sample
  net: dp83867: Fix WoL SecureOn password
  nfp: flower: fix ABI mismatch between driver and firmware
  tipc: fix shutdown() of connectionless socket
  ipv6: Fix sysctl max for fib_multipath_hash_policy
  drivers/net/wan/hdlc: Change the default of hard_header_len to 0
  net: gemini: Fix another missing clk_disable_unprepare() in probe
  net: bcmgenet: fix mask check in bcmgenet_validate_flow()
  amd-xgbe: Add support for new port mode
  net: usb: dm9601: Add USB ID of Keenetic Plus DSL
  vhost: fix typo in error message
  net: ethernet: mlx4: Fix memory allocation in mlx4_buddy_init()
  pktgen: fix error message with wrong function name
  net: ethernet: ti: am65-cpsw: fix rmii 100Mbit link mode
  cxgb4: fix thermal zone device registration
  ...
 2020-09-03 18:50:48 -07:00
Linus Torvalds 8381979dfa Merge branch 'gate-page-refcount' (patches from Dave Hansen) 
Merge gate page refcount fix from Dave Hansen:
 "During the conversion over to pin_user_pages(), gate pages were missed.

  The fix is pretty simple, and is accompanied by a new test from Andy
  which probably would have caught this earlier"

* emailed patches from Dave Hansen <dave.hansen@linux.intel.com>:
  selftests/x86/test_vsyscall: Improve the process_vm_readv() test
  mm: fix pin vs. gup mismatch with gate pages
 2020-09-03 18:43:06 -07:00
Andy Lutomirski 8891adc61d selftests/x86/test_vsyscall: Improve the process_vm_readv() test 
The existing code accepted process_vm_readv() success or failure as long
as it didn't return garbage.  This is too weak: if the vsyscall page is
readable, then process_vm_readv() should succeed and, if the page is not
readable, then it should fail.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: x86@kernel.org
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Jann Horn <jannh@google.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2020-09-03 18:36:55 -07:00
Jiri Olsa 830fadfd95 perf tools: Add bpf image check to __map__is_kmodule 
When validating kcore modules the do_validate_kcore_modules function
checks on every kernel module dso against modules record. The
__map__is_kmodule check is used to get only kernel module dso objects
through.

Currently the bpf images are slipping through the check and making the
validation to fail, so report falls back from kcore usage to kallsyms.

Adding __map__is_bpf_image check for bpf image and adding it to
__map__is_kmodule check.

Fixes: 3c29d4483e ("perf annotate: Add basic support for bpf_image")
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20200826213017.818788-1-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-09-03 16:04:46 -03:00
Kim Phillips e48a73a312 perf record/stat: Explicitly call out event modifiers in the documentation 
Event modifiers are not mentioned in the perf record or perf stat
manpages.  Add them to orient new users more effectively by pointing
them to the perf list manpage for details.

Fixes: 2055fdaf87 ("perf list: Document precise event sampling for AMD IBS")
Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tony Jones <tonyj@suse.de>
Cc: stable@vger.kernel.org
Link: http://lore.kernel.org/lkml/20200901215853.276234-1-kim.phillips@amd.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-09-03 16:00:37 -03:00
YueHaibing e4d71f79cf perf bench: The do_run_multi_threaded() function must use IS_ERR(perf_session__new()) 
In case of error, the function perf_session__new() returns ERR_PTR() and
never returns NULL. The NULL test in the return value check should be
replaced with IS_ERR()

Committer notes:

This wasn't compiling due to an extraneous '{' not matched by a '}', fix
it.

Fixes: 13edc23720 ("perf bench: Add a multi-threaded synthesize benchmark")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200902140526.26916-1-yuehaibing@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-09-03 15:55:56 -03:00
Jin Yao ee6a961432 perf stat: Turn off summary for interval mode by default 
There's a risk that outputting interval mode summaries by default breaks
CSV consumers. It already broke pmu-tools/toplev.

So now we turn off the summary by default but we create a new option
'--summary' to enable the summary. This is active even when not using
CSV mode.

Before:

  root@kbl-ppc:~# perf stat -I1000 --interval-count 2
  #           time             counts unit events
       1.000265904           8,005.73 msec cpu-clock                 #    8.006 CPUs utilized
       1.000265904                601      context-switches          #    0.075 K/sec
       1.000265904                 10      cpu-migrations            #    0.001 K/sec
       1.000265904                  0      page-faults               #    0.000 K/sec
       1.000265904         66,746,521      cycles                    #    0.008 GHz
       1.000265904         71,874,398      instructions              #    1.08  insn per cycle
       1.000265904         13,356,781      branches                  #    1.668 M/sec
       1.000265904            298,756      branch-misses             #    2.24% of all branches
       2.001857667           8,012.52 msec cpu-clock                 #    8.013 CPUs utilized
       2.001857667                164      context-switches          #    0.020 K/sec
       2.001857667                 10      cpu-migrations            #    0.001 K/sec
       2.001857667                  2      page-faults               #    0.000 K/sec
       2.001857667          5,822,188      cycles                    #    0.001 GHz
       2.001857667          2,186,170      instructions              #    0.38  insn per cycle
       2.001857667            442,378      branches                  #    0.055 M/sec
       2.001857667             44,750      branch-misses             #   10.12% of all branches

   Performance counter stats for 'system wide':

           16,018.25 msec cpu-clock                 #    7.993 CPUs utilized
                 765      context-switches          #    0.048 K/sec
                  20      cpu-migrations            #    0.001 K/sec
                   2      page-faults               #    0.000 K/sec
          72,568,709      cycles                    #    0.005 GHz
          74,060,568      instructions              #    1.02  insn per cycle
          13,799,159      branches                  #    0.861 M/sec
             343,506      branch-misses             #    2.49% of all branches

         2.004118489 seconds time elapsed

After:

  root@kbl-ppc:~# perf stat -I1000 --interval-count 2
  #           time             counts unit events
       1.001336393           8,013.28 msec cpu-clock                 #    8.013 CPUs utilized
       1.001336393                 82      context-switches          #    0.010 K/sec
       1.001336393                  8      cpu-migrations            #    0.001 K/sec
       1.001336393                  0      page-faults               #    0.000 K/sec
       1.001336393          4,199,121      cycles                    #    0.001 GHz
       1.001336393          1,373,991      instructions              #    0.33  insn per cycle
       1.001336393            270,681      branches                  #    0.034 M/sec
       1.001336393             31,659      branch-misses             #   11.70% of all branches
       2.003905006           8,020.52 msec cpu-clock                 #    8.021 CPUs utilized
       2.003905006                184      context-switches          #    0.023 K/sec
       2.003905006                  8      cpu-migrations            #    0.001 K/sec
       2.003905006                  2      page-faults               #    0.000 K/sec
       2.003905006          5,446,190      cycles                    #    0.001 GHz
       2.003905006          2,312,547      instructions              #    0.42  insn per cycle
       2.003905006            451,691      branches                  #    0.056 M/sec
       2.003905006             37,925      branch-misses             #    8.40% of all branches

  root@kbl-ppc:~# perf stat -I1000 --interval-count 2 --summary
  #           time             counts unit events
       1.001313128           8,013.20 msec cpu-clock                 #    8.013 CPUs utilized
       1.001313128                 83      context-switches          #    0.010 K/sec
       1.001313128                  8      cpu-migrations            #    0.001 K/sec
       1.001313128                  0      page-faults               #    0.000 K/sec
       1.001313128          4,470,950      cycles                    #    0.001 GHz
       1.001313128          1,440,045      instructions              #    0.32  insn per cycle
       1.001313128            283,222      branches                  #    0.035 M/sec
       1.001313128             33,576      branch-misses             #   11.86% of all branches
       2.003857385           8,020.34 msec cpu-clock                 #    8.020 CPUs utilized
       2.003857385                154      context-switches          #    0.019 K/sec
       2.003857385                  8      cpu-migrations            #    0.001 K/sec
       2.003857385                  2      page-faults               #    0.000 K/sec
       2.003857385          4,515,676      cycles                    #    0.001 GHz
       2.003857385          2,180,449      instructions              #    0.48  insn per cycle
       2.003857385            435,254      branches                  #    0.054 M/sec
       2.003857385             31,179      branch-misses             #    7.16% of all branches

   Performance counter stats for 'system wide':

           16,033.53 msec cpu-clock                 #    7.992 CPUs utilized
                 237      context-switches          #    0.015 K/sec
                  16      cpu-migrations            #    0.001 K/sec
                   2      page-faults               #    0.000 K/sec
           8,986,626      cycles                    #    0.001 GHz
           3,620,494      instructions              #    0.40  insn per cycle
             718,476      branches                  #    0.045 M/sec
              64,755      branch-misses             #    9.01% of all branches

         2.006124542 seconds time elapsed

Fixes: c7e5b328a8 ("perf stat: Report summary for interval mode")
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200903010113.32232-1-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-09-03 15:48:41 -03:00
Tzvetomir Stoyanov (VMware) 10a6f5c3b3 libtraceevent: Fix build warning on 32-bit arches 
Fixed a compilation warning for casting to pointer from integer of
different size on 32-bit platforms.

Reported-by: Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com>
Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: linux-trace-devel@vger.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-09-03 15:45:15 -03:00
Namhyung Kim e62458e394 perf jevents: Fix suspicious code in fixregex() 
The new string should have enough space for the original string and the
back slashes IMHO.

Fixes: fbc2844e84 ("perf vendor events: Use more flexible pattern matching for CPU identification for mapfile.csv")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: William Cohen <wcohen@redhat.com>
Link: http://lore.kernel.org/lkml/20200903152510.489233-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-09-03 15:38:05 -03:00
Arnaldo Carvalho de Melo 0823f768b8 perf parse-events: Use uintptr_t when casting numbers to pointers 
To address these errors found when cross building from x86_64 to MIPS
little endian 32-bit:

    CC       /tmp/build/perf/util/parse-events-bison.o
  util/parse-events.y: In function 'parse_events_parse':
  util/parse-events.y:514:6: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
    514 |      (void *) $2, $6, $4);
        |      ^
  util/parse-events.y:531:7: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
    531 |       (void *) $2, NULL, $4)) {
        |       ^
  util/parse-events.y:547:6: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
    547 |      (void *) $2, $4, 0);
        |      ^
  util/parse-events.y:564:7: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
    564 |       (void *) $2, NULL, 0)) {
        |       ^

Fixes: cabbf26821 ("perf parse: Before yyabort-ing free components")
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Ian Rogers <irogers@google.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Yonghong Song <yhs@fb.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-09-03 15:34:20 -03:00
Linus Torvalds 9c7d619be5 perf tools fixes for v5.9: 
- Fix infinite loop in the TUI for grouped events in 'perf top/record', for
   instance when using "perf top -e '{cycles,instructions,cache-misses}'.
 
 - Fix segfault by skipping side-band event setup if HAVE_LIBBPF_SUPPORT is not set.
 
 - Fix synthesized branch stacks generated from CoreSight ETM trace and Intel PT
   hardware traces.
 
 - Fix error when synthesizing events from ARM SPE hardware trace.
 
 - The SNOOPX and REMOTE offsets in the data_src bitmask in perf records were
   were both 37, SNOOPX is 38, fix it.
 
 - Fix use of CPU list with summary option in 'perf sched timehist'.
 
 - Avoid an uninitialized read when using fake PMUs.
 
 - Set perf_event_attr.exclude_guest=1 for user-space counting.
 
 - Don't order events when doing a 'perf report -D' raw dump of perf.data records.
 
 - Set NULL sentinel in pmu_events table in "Parse and process metrics" 'perf test'
 
 - Fix basic bpf filtering 'perf test' on s390x.
 
 - Fix out of bounds array access in the 'perf stat' print_counters() evlist method.
 
 - Add mwait_idle_with_hints.constprop.0 to the list of idle symbols.
 
 - Use %zd for size_t printf formats on 32-bit.
 
 - Correct the help info of "perf record --no-bpf-event" option.
 
 - Add entries for CoreSight and Arm SPE tooling to MAINTAINERS.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 
 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.
 
   # export PERF_TARBALL=http://192.168.122.1/perf/perf-5.9.0-rc1.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:3.11                   : Ok   gcc (Alpine 9.3.0) 9.3.0, Alpine clang version 9.0.0 (https://git.alpinelinux.org/aports f7f0d2c2b8bcd6a5843401a9a702029556492689) (based on LLVM 9.0.0)
    9 alpine:3.12                   : Ok   gcc (Alpine 9.3.0) 9.3.0, Alpine clang version 10.0.0 (https://gitlab.alpinelinux.org/alpine/aports.git 7445adce501f8473efdb93b17b5eaf2f1445ed4c)
   10 alpine:edge                   : Ok   gcc (Alpine 10.2.0) 10.2.0, Alpine clang version 10.0.1
   11 alt:p8                        : Ok   x86_64-alt-linux-gcc (GCC) 5.3.1 20151207 (ALT p8 5.3.1-alt3.M80P.1), clang version 3.8.0 (tags/RELEASE_380/final)
   12 alt:p9                        : Ok   x86_64-alt-linux-gcc (GCC) 8.4.1 20200305 (ALT p9 8.4.1-alt0.p9.1), clang version 10.0.0
   13 alt:sisyphus                  : Ok   x86_64-alt-linux-gcc (GCC) 9.3.1 20200518 (ALT Sisyphus 9.3.1-alt1), clang version 10.0.1
   14 amazonlinux:1                 : Ok   gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2), clang version 3.6.2 (tags/RELEASE_362/final)
   15 amazonlinux:2                 : Ok   gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-9), clang version 7.0.1 (Amazon Linux 2 7.0.1-1.amzn2.0.2)
   16 android-ndk:r12b-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   17 android-ndk:r15c-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   18 centos:6                      : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23)
   19 centos:7                      : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39)
   20 centos:8                      : Ok   gcc (GCC) 8.3.1 20191121 (Red Hat 8.3.1-5), clang version 9.0.1 (Red Hat 9.0.1-2.module_el8.2.0+309+0c7b6b03)
   21 clearlinux:latest             : Ok   gcc (Clear Linux OS for Intel Architecture) 10.2.1 20200812 releases/gcc-10.2.0-102-gc99b2c529b, clang version 10.0.1
   22 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)
   23 debian:9                      : Ok   gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516, clang version 3.8.1-24 (tags/RELEASE_381/final)
   24 debian:10                     : Ok   gcc (Debian 8.3.0-6) 8.3.0, clang version 7.0.1-8 (tags/RELEASE_701/final)
   25 debian:experimental           : Ok   gcc (Debian 10.2.0-5) 10.2.0, Debian clang version 11.0.0-+rc2-4
   26 debian:experimental-x-arm64   : Ok   aarch64-linux-gnu-gcc (Debian 10.2.0-3) 10.2.0
   27 debian:experimental-x-mips    : Ok   mips-linux-gnu-gcc (Debian 8.3.0-19) 8.3.0
   28 debian:experimental-x-mips64  : Ok   mips64-linux-gnuabi64-gcc (Debian 9.3.0-8) 9.3.0
   29 debian:experimental-x-mipsel  : FAIL mipsel-linux-gnu-gcc (Debian 9.3.0-8) 9.3.0
 
     util/parse-events.y: In function 'parse_events_parse':
     util/parse-events.y:514:6: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
       514 |      (void *) $2, $6, $4);
           |      ^
     util/parse-events.y:531:7: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
       531 |       (void *) $2, NULL, $4)) {
           |       ^
     util/parse-events.y:547:6: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
       547 |      (void *) $2, $4, 0);
           |      ^
     util/parse-events.y:564:7: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
       564 |       (void *) $2, NULL, 0)) {
           |       ^
 
   Works with a slightly older compiler:
 
   29 debian:experimental-x-mipsel  : Ok   mipsel-linux-gnu-gcc (Debian 9.2.1-8) 9.2.1 20190909
 
   30 fedora:20                     : Ok   gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)
   31 fedora:22                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.5.0 (tags/RELEASE_350/final)
   32 fedora:23                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.7.0 (tags/RELEASE_370/final)
   33 fedora:24                     : Ok   gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1), clang version 3.8.1 (tags/RELEASE_381/final)
   34 fedora:24-x-ARC-uClibc        : Ok   arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
   35 fedora:25                     : Ok   gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1), clang version 3.9.1 (tags/RELEASE_391/final)
   36 fedora:26                     : Ok   gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2), clang version 4.0.1 (tags/RELEASE_401/final)
   37 fedora:27                     : Ok   gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6), clang version 5.0.2 (tags/RELEASE_502/final)
   38 fedora:28                     : Ok   gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2), clang version 6.0.1 (tags/RELEASE_601/final)
   39 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)
   40 fedora:30                     : Ok   gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2), clang version 8.0.0 (Fedora 8.0.0-3.fc30)
   41 fedora:30-x-ARC-glibc         : Ok   arc-linux-gcc (ARC HS GNU/Linux glibc toolchain 2019.03-rc1) 8.3.1 20190225
   42 fedora:30-x-ARC-uClibc        : Ok   arc-linux-gcc (ARCv2 ISA Linux uClibc toolchain 2019.03-rc1) 8.3.1 20190225
   43 fedora:31                     : Ok   gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2), clang version 9.0.1 (Fedora 9.0.1-2.fc31)
   44 fedora:32                     : Ok   gcc (GCC) 10.2.1 20200723 (Red Hat 10.2.1-1), clang version 10.0.0 (Fedora 10.0.0-2.fc32)
   45 fedora:rawhide                : FAIL gcc (GCC) 10.2.1 20200804 (Red Hat 10.2.1-2), clang version 11.0.0 (Fedora 11.0.0-0.2.rc1.fc33)
 
     util/scripting-engines/trace-event-python.c: In function 'python_start_script':
     util/scripting-engines/trace-event-python.c:1595:2: error: 'visibility' attribute ignored [-Werror=attributes]
      1595 |  PyMODINIT_FUNC (*initfunc)(void);
           |  ^~~~~~~~~~~~~~
 
   46 gentoo-stage3-amd64:latest    : Ok   gcc (Gentoo 9.3.0-r1 p3) 9.3.0
   47 mageia:5                      : Ok   gcc (GCC) 4.9.2, clang version 3.5.2 (tags/RELEASE_352/final)
   48 mageia:6                      : Ok   gcc (Mageia 5.5.0-1.mga6) 5.5.0, clang version 3.9.1 (tags/RELEASE_391/final)
   49 mageia:7                      : Ok   gcc (Mageia 8.4.0-1.mga7) 8.4.0, clang version 8.0.0 (Mageia 8.0.0-1.mga7)
   50 manjaro:latest                : Ok   gcc (GCC) 10.2.0, clang version 10.0.1
   51 opensuse:15.0                 : Ok   gcc (SUSE Linux) 7.4.1 20190905 [gcc-7-branch revision 275407], clang version 5.0.1 (tags/RELEASE_501/final 312548)
   52 opensuse:15.1                 : Ok   gcc (SUSE Linux) 7.5.0, clang version 7.0.1 (tags/RELEASE_701/final 349238)
   53 opensuse:15.2                 : Ok   gcc (SUSE Linux) 7.5.0, clang version 9.0.1
   54 opensuse:42.3                 : Ok   gcc (SUSE Linux) 4.8.5, clang version 3.8.0 (tags/RELEASE_380/final 262553)
   55 opensuse:tumbleweed           : Ok   gcc (SUSE Linux) 10.2.1 20200825 [revision c0746a1beb1ba073c7981eb09f55b3d993b32e5c], clang version 10.0.1
   56 oraclelinux:6                 : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23.0.1)
   57 oraclelinux:7                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39.0.5)
   58 oraclelinux:8                 : Ok   gcc (GCC) 8.3.1 20191121 (Red Hat 8.3.1-5.0.3), clang version 9.0.1 (Red Hat 9.0.1-2.0.1.module+el8.2.0+5599+9ed9ef6d)
   59 ubuntu:12.04                  : Ok   gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3, Ubuntu clang version 3.0-6ubuntu3 (tags/RELEASE_30/final) (based on LLVM 3.0)
   60 ubuntu:14.04                  : Ok   gcc (Ubuntu 4.8.4-2ubuntu1~14.04.4) 4.8.4
   61 ubuntu:16.04                  : Ok   gcc (Ubuntu 5.4.0-6ubuntu1~16.04.12) 5.4.0 20160609, clang version 3.8.0-2ubuntu4 (tags/RELEASE_380/final)
   62 ubuntu:16.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   63 ubuntu:16.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   64 ubuntu:16.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
 
   Reported the following libtraceevent build warning:
 
     event-parse.c: In function 'print_arg_pointer':
     event-parse.c:5262:29: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
        trace_seq_printf(s, "%p", (void *)val);
                                  ^
   65 ubuntu:16.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   66 ubuntu:16.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   67 ubuntu:16.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   68 ubuntu:18.04                  : Ok   gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0, clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
   69 ubuntu:18.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0
   70 ubuntu:18.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0
   71 ubuntu:18.04-x-m68k           : Ok   m68k-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   72 ubuntu:18.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   73 ubuntu:18.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   74 ubuntu:18.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   75 ubuntu:18.04-x-riscv64        : Ok   riscv64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   76 ubuntu:18.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   77 ubuntu:18.04-x-sh4            : Ok   sh4-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   78 ubuntu:18.04-x-sparc64        : Ok   sparc64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   79 ubuntu:19.10                  : Ok   gcc (Ubuntu 9.2.1-9ubuntu2) 9.2.1 20191008, clang version 8.0.1-3build1 (tags/RELEASE_801/final)
   80 ubuntu:20.04                  : Ok   gcc (Ubuntu 9.3.0-10ubuntu2) 9.3.0, clang version 10.0.0-4ubuntu1
   81 ubuntu:20.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu 10-20200411-0ubuntu1) 10.0.1 20200411 (experimental) [master revision bb87d5cc77d:75961caccb7:f883c46b4877f637e0fa5025b4d6b5c9040ec566]
 
   # uname -a
   Linux five 5.9.0-rc3 #1 SMP Mon Aug 31 08:38:27 -03 2020 x86_64 x86_64 x86_64 GNU/Linux
   # git log --oneline -1
   977f739b71 perf report: Disable ordered_events for raw dump
   # perf version --build-options
   perf version 5.9.rc1.g977f739b7126
                    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: PMU events                                            :
   10.1: PMU event table sanity                              : Ok
   10.2: PMU event map aliases                               : Ok
   10.3: Parsing of PMU event table metrics                  : Ok
   10.4: Parsing of PMU event table metrics with fake PMUs   : Ok
   11: DSO data read                                         : Ok
   12: DSO data cache                                        : Ok
   13: DSO data reopen                                       : Ok
   14: Roundtrip evsel->name                                 : Ok
   15: Parse sched tracepoints fields                        : Ok
   16: syscalls:sys_enter_openat event fields                : Ok
   17: Setup struct perf_event_attr                          : Ok
   18: Match and link multiple hists                         : Ok
   19: 'import perf' in python                               : Ok
   20: Breakpoint overflow signal handler                    : Ok
   21: Breakpoint overflow sampling                          : Ok
   22: Breakpoint accounting                                 : Ok
   23: Watchpoint                                            :
   23.1: Read Only Watchpoint                                : Skip
   23.2: Write Only Watchpoint                               : Ok
   23.3: Read / Write Watchpoint                             : Ok
   23.4: Modify Watchpoint                                   : Ok
   24: Number of exit events of a simple workload            : Ok
   25: Software clock events period values                   : Ok
   26: Object code reading                                   : Ok
   27: Sample parsing                                        : Ok
   28: Use a dummy software event to keep tracking           : Ok
   29: Parse with no sample_id_all bit set                   : Ok
   30: Filter hist entries                                   : Ok
   31: Lookup mmap thread                                    : Ok
   32: Share thread maps                                     : Ok
   33: Sort output of hist entries                           : Ok
   34: Cumulate child hist entries                           : Ok
   35: Track with sched_switch                               : Ok
   36: Filter fds with revents mask in a fdarray             : Ok
   37: Add fd to a fdarray, making it autogrow               : Ok
   38: kmod_path__parse                                      : Ok
   39: Thread map                                            : Ok
   40: LLVM search and compile                               :
   40.1: Basic BPF llvm compile                              : Ok
   40.2: kbuild searching                                    : Ok
   40.3: Compile source for BPF prologue generation          : Ok
   40.4: Compile source for BPF relocation                   : Ok
   41: Session topology                                      : Ok
   42: BPF filter                                            :
   42.1: Basic BPF filtering                                 : Ok
   42.2: BPF pinning                                         : Ok
   42.3: BPF prologue generation                             : Ok
   42.4: BPF relocation checker                              : Ok
   43: Synthesize thread map                                 : Ok
   44: Remove thread map                                     : Ok
   45: Synthesize cpu map                                    : Ok
   46: Synthesize stat config                                : Ok
   47: Synthesize stat                                       : Ok
   48: Synthesize stat round                                 : Ok
   49: Synthesize attr update                                : Ok
   50: Event times                                           : Ok
   51: Read backward ring buffer                             : Ok
   52: Print cpu map                                         : Ok
   53: Merge cpu map                                         : Ok
   54: Probe SDT events                                      : Ok
   55: is_printable_array                                    : Ok
   56: Print bitmap                                          : Ok
   57: perf hooks                                            : Ok
   58: builtin clang support                                 : Skip (not compiled in)
   59: unit_number__scnprintf                                : Ok
   60: mem2node                                              : Ok
   61: time utils                                            : Ok
   62: Test jit_write_elf                                    : Ok
   63: Test libpfm4 support                                  : Skip (not compiled in)
   64: Test api io                                           : Ok
   65: maps__merge_in                                        : Ok
   66: Demangle Java                                         : Ok
   67: Parse and process metrics                             : Ok
   68: x86 rdpmc                                             : Ok
   69: Convert perf time to TSC                              : Ok
   70: DWARF unwind                                          : Ok
   71: x86 instruction decoder - new instructions            : Ok
   72: Intel PT packet decoder                               : Ok
   73: x86 bp modify                                         : Ok
   74: probe libc's inet_pton & backtrace it with ping       : Ok
   75: Use vfs_getname probe to get syscall args filenames   : Ok
   76: Check open filename arg using perf trace + vfs_getname: Ok
   77: Zstd perf.data compression/decompression              : Ok
   78: Add vfs_getname probe to get syscall args filenames   : Ok
   #
 
   $ git log --oneline -1
   977f739b71 (HEAD -> perf/urgent) perf report: Disable ordered_events for raw dump
   $ make -C tools/perf build-test
   make: Entering directory '/home/acme/git/perf/tools/perf'
   - tarpkg: ./tests/perf-targz-src-pkg .
   - /home/acme/git/perf/tools/perf/BUILD_TEST_FEATURE_DUMP: make FEATURE_DUMP_COPY=/home/acme/git/perf/tools/perf/BUILD_TEST_FEATURE_DUMP  feature-dump
   make FEATURE_DUMP_COPY=/home/acme/git/perf/tools/perf/BUILD_TEST_FEATURE_DUMP feature-dump
              make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
            make_no_libcrypto_O: make NO_LIBCRYPTO=1
             make_install_bin_O: make install-bin
                   make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=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 NO_LIBCAP=1 NO_SYSCALL_TABLE=1
            make_with_libpfm4_O: make LIBPFM4=1
          make_install_prefix_O: make install prefix=/tmp/krava
             make_no_libaudit_O: make NO_LIBAUDIT=1
                  make_no_sdt_O: make NO_SDT=1
               make_no_libbpf_O: make NO_LIBBPF=1
                     make_doc_O: make doc
                 make_no_gtk2_O: make NO_GTK2=1
            make_no_libunwind_O: make NO_LIBUNWIND=1
             make_no_auxtrace_O: make NO_AUXTRACE=1
            make_no_libbionic_O: make NO_LIBBIONIC=1
    make_install_prefix_slash_O: make install prefix=/tmp/krava/
   make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
        make_util_pmu_bison_o_O: make util/pmu-bison.o
          make_with_clangllvm_O: make LIBCLANGLLVM=1
         make_no_libbpf_DEBUG_O: make NO_LIBBPF=1 DEBUG=1
              make_no_libnuma_O: make NO_LIBNUMA=1
                 make_install_O: make install
               make_no_libelf_O: make NO_LIBELF=1
          make_no_syscall_tbl_O: make NO_SYSCALL_TABLE=1
                    make_help_O: make help
              make_no_libperl_O: make NO_LIBPERL=1
                   make_debug_O: make DEBUG=1
                 make_no_newt_O: make NO_NEWT=1
         make_with_babeltrace_O: make LIBBABELTRACE=1
   - /home/acme/git/perf/tools/perf/BUILD_TEST_FEATURE_DUMP_STATIC: make FEATURE_DUMP_COPY=/home/acme/git/perf/tools/perf/BUILD_TEST_FEATURE_DUMP_STATIC  LDFLAGS='-static' feature-dump
   make FEATURE_DUMP_COPY=/home/acme/git/perf/tools/perf/BUILD_TEST_FEATURE_DUMP_STATIC LDFLAGS='-static' feature-dump
                  make_static_O: make LDFLAGS=-static NO_PERF_READ_VDSO32=1 NO_PERF_READ_VDSOX32=1 NO_JVMTI=1
            make_no_backtrace_O: make NO_BACKTRACE=1
                    make_tags_O: make tags
                    make_pure_O: make
             make_no_demangle_O: make NO_DEMANGLE=1
            make_no_libpython_O: make NO_LIBPYTHON=1
               make_clean_all_O: make clean all
                make_no_slang_O: make NO_SLANG=1
              make_util_map_o_O: make util/map.o
                  make_perf_o_O: make perf.o
   OK
   make: Leaving directory '/home/acme/git/perf/tools/perf'
   $
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Merge tag 'perf-tools-fixes-for-v5.9-2020-09-01' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Fix infinite loop in the TUI for grouped events in 'perf top/record',
   eg when using "perf top -e '{cycles,instructions,cache-misses}'".

 - Fix segfault by skipping side-band event setup if HAVE_LIBBPF_SUPPORT
   is not set.

 - Fix synthesized branch stacks generated from CoreSight ETM trace and
   Intel PT hardware traces.

 - Fix error when synthesizing events from ARM SPE hardware trace.

 - The SNOOPX and REMOTE offsets in the data_src bitmask in perf records
   were were both 37, SNOOPX is 38, fix it.

 - Fix use of CPU list with summary option in 'perf sched timehist'.

 - Avoid an uninitialized read when using fake PMUs.

 - Set perf_event_attr.exclude_guest=1 for user-space counting.

 - Don't order events when doing a 'perf report -D' raw dump of
   perf.data records.

 - Set NULL sentinel in pmu_events table in "Parse and process metrics"
   'perf test'

 - Fix basic bpf filtering 'perf test' on s390x.

 - Fix out of bounds array access in the 'perf stat' print_counters()
   evlist method.

 - Add mwait_idle_with_hints.constprop.0 to the list of idle symbols.

 - Use %zd for size_t printf formats on 32-bit.

 - Correct the help info of "perf record --no-bpf-event" option.

 - Add entries for CoreSight and Arm SPE tooling to MAINTAINERS.

* tag 'perf-tools-fixes-for-v5.9-2020-09-01' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf report: Disable ordered_events for raw dump
  perf tools: Correct SNOOPX field offset
  perf intel-pt: Fix corrupt data after perf inject from
  perf cs-etm: Fix corrupt data after perf inject from
  perf top/report: Fix infinite loop in the TUI for grouped events
  perf parse-events: Avoid an uninitialized read when using fake PMUs
  perf stat: Fix out of bounds array access in the print_counters() evlist method
  perf test: Set NULL sentinel in pmu_events table in "Parse and process metrics" test
  perf parse-events: Set exclude_guest=1 for user-space counting
  perf record: Correct the help info of option "--no-bpf-event"
  perf tools: Use %zd for size_t printf formats on 32-bit
  MAINTAINERS: Add entries for CoreSight and Arm SPE tooling
  perf: arm-spe: Fix check error when synthesizing events
  perf symbols: Add mwait_idle_with_hints.constprop.0 to the list of idle symbols
  perf top: Skip side-band event setup if HAVE_LIBBPF_SUPPORT is not set
  perf sched timehist: Fix use of CPU list with summary option
  perf test: Fix basic bpf filtering test
 2020-09-01 19:36:52 -07:00
Jiri Olsa 977f739b71 perf report: Disable ordered_events for raw dump 
Disable ordered_events for report raw dump, because for raw dump we want
to see events as they are stored in the perf.data file, not sorted by
time.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200827134830.126721-1-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-09-01 12:20:25 -03:00
Al Grant 39c0a53b11 perf tools: Correct SNOOPX field offset 
perf_event.h has macros that define the field offsets in the data_src
bitmask in perf records. The SNOOPX and REMOTE offsets were both 37.

These are distinct fields, and the bitfield layout in perf_mem_data_src
confirms that SNOOPX should be at offset 38.

Committer notes:

This was extracted from a larger patch that also contained kernel
changes.

Fixes: 52839e653b ("perf tools: Add support for printing new mem_info encodings")
Signed-off-by: Al Grant <al.grant@arm.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/9974f2d0-bf7f-518e-d9f7-4520e5ff1bb0@foss.arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-09-01 12:19:16 -03:00
Al Grant a347306fbe perf intel-pt: Fix corrupt data after perf inject from 
Commit 42bbabed09 ("perf tools: Add hw_idx in struct branch_stack")
changed the format of branch stacks in perf samples. When samples use
this new format, a flag must be set in the corresponding event.

Synthesized branch stacks generated from Intel PT were using the new
format, but not setting the event attribute, leading to consumers
seeing corrupt data. This patch fixes the issue by setting the event
attribute to indicate use of the new format.

Fixes: 42bbabed09 ("perf tools: Add hw_idx in struct branch_stack")
Signed-off-by: Al Grant <al.grant@arm.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lore.kernel.org/lkml/20200819084751.17686-2-leo.yan@linaro.org
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-09-01 12:15:52 -03:00
Al Grant f5f8e7e55f perf cs-etm: Fix corrupt data after perf inject from 
Commit 42bbabed09 ("perf tools: Add hw_idx in struct branch_stack")
changed the format of branch stacks in perf samples. When samples use
this new format, a flag must be set in the corresponding event.

Synthesized branch stacks generated from CoreSight ETM trace were using
the new format, but not setting the event attribute, leading to
consumers seeing corrupt data. This patch fixes the issue by setting the
event attribute to indicate use of the new format.

Fixes: 42bbabed09 ("perf tools: Add hw_idx in struct branch_stack")
Signed-off-by: Al Grant <al.grant@arm.com>
Reviewed-by: Andrea Brunato <andrea.brunato@arm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Link: http://lore.kernel.org/lkml/20200819084751.17686-1-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-09-01 12:15:52 -03:00
Arnaldo Carvalho de Melo d4ccbacb9c perf top/report: Fix infinite loop in the TUI for grouped events 
For a while we need to have a dummy event for doing things like
receiving PERF_RECORD_COMM, PERF_RECORD_EXEC, etc for threads being
created and dying while we synthesize the pre-existing ones at tool
start.

This 'dummy' event is needed for keeping track of thread lifetime events
early in the session but are uninteresting otherwise, i.e. no need to
have it in a initial events menu for the non-grouped case, i.e. for:

 # perf top -e cycles,instructions

or even for plain:

 # perf top

When 'cycles' and that 'dummy' event are in place.

The code to remove that 'dummy' event ended up creating an endless loop
for the grouped case, i.e.:

 # perf top -e '{cycles,instructions}'

Fix it.

Fixes: bee9ca1c8a ("perf report TUI: Remove needless 'dummy' event from menu")
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-09-01 12:15:52 -03:00
Ian Rogers 33321a06c7 perf parse-events: Avoid an uninitialized read when using fake PMUs 
With a fake_pmu the pmu_info isn't populated by perf_pmu__check_alias.
In this case, don't try to copy the uninitialized values to the evsel.

Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20200826042910.1902374-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-09-01 12:15:52 -03:00
Thomas Richter 313146a844 perf stat: Fix out of bounds array access in the print_counters() evlist method 
Fix a compile error on F32 and gcc version 10.1 on s390 in file
utils/stat-display.c.  The error does not show up with make DEBUG=y.  In
fact the issue shows up when using both compiler options -O6 and
-D_FORTIFY_SOURCE=2 (which are omitted with DEBUG=Y).

This is the offending call chain:

print_counter_aggr()
  printout(config, -1, 0, ...)  with 2nd parm id set to -1
    aggr_printout(config, x, id --> -1, ...) which leads to this code:
		case AGGR_NONE:
                if (evsel->percore && !config->percore_show_thread) {
                        ....
                } else {
                        fprintf(config->output, "CPU%*d%s",
                                config->csv_output ? 0 : -7,
                                evsel__cpus(evsel)->map[id],
				                        ^^ id is -1 !!!!
                                config->csv_sep);
                }

This is a compiler inlining issue which is detected on s390 but not on
other plattforms.

Output before:

 # make util/stat-display.o
    .....

  util/stat-display.c: In function ‘perf_evlist__print_counters’:
  util/stat-display.c:121:4: error: array subscript -1 is below array
      bounds of ‘int[]’ [-Werror=array-bounds]
  121 |    fprintf(config->output, "CPU%*d%s",
      |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  122 |     config->csv_output ? 0 : -7,
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  123 |     evsel__cpus(evsel)->map[id],
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  124 |     config->csv_sep);
      |     ~~~~~~~~~~~~~~~~
  In file included from util/evsel.h:13,
                 from util/evlist.h:13,
                 from util/stat-display.c:9:
  /root/linux/tools/lib/perf/include/internal/cpumap.h:10:7:
  note: while referencing ‘map’
   10 |  int  map[];
      |       ^~~
  cc1: all warnings being treated as errors
  mv: cannot stat 'util/.stat-display.o.tmp': No such file or directory
  make[3]: *** [/root/linux/tools/build/Makefile.build:97: util/stat-display.o]
  Error 1
  make[2]: *** [Makefile.perf:716: util/stat-display.o] Error 2
  make[1]: *** [Makefile.perf:231: sub-make] Error 2
  make: *** [Makefile:110: util/stat-display.o] Error 2
  [root@t35lp46 perf]#

Output after:

  # make util/stat-display.o
    .....
  CC       util/stat-display.o
  [root@t35lp46 perf]#

Committer notes:

Removed the removal of {} enclosing the multiline else block, as pointed
out by Jiri Olsa.

Suggested-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Link: http://lore.kernel.org/lkml/20200825063304.77733-1-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-09-01 12:15:52 -03:00
Thomas Richter 492d4d876c perf test: Set NULL sentinel in pmu_events table in "Parse and process metrics" test 
Linux 5.9 introduced perf test case "Parse and process metrics" and
on s390 this test case always dumps core:

  [root@t35lp67 perf]# ./perf test -vvvv -F 67
  67: Parse and process metrics                             :
  --- start ---
  metric expr inst_retired.any / cpu_clk_unhalted.thread for IPC
  parsing metric: inst_retired.any / cpu_clk_unhalted.thread
  Segmentation fault (core dumped)
  [root@t35lp67 perf]#

I debugged this core dump and gdb shows this call chain:

  (gdb) where
   #0  0x000003ffabc3192a in __strnlen_c_1 () from /lib64/libc.so.6
   #1  0x000003ffabc293de in strcasestr () from /lib64/libc.so.6
   #2  0x0000000001102ba2 in match_metric(list=0x1e6ea20 "inst_retired.any",
            n=<optimized out>)
       at util/metricgroup.c:368
   #3  find_metric (map=<optimized out>, map=<optimized out>,
           metric=0x1e6ea20 "inst_retired.any")
      at util/metricgroup.c:765
   #4  __resolve_metric (ids=0x0, map=<optimized out>, metric_list=0x0,
           metric_no_group=<optimized out>, m=<optimized out>)
      at util/metricgroup.c:844
   #5  resolve_metric (ids=0x0, map=0x0, metric_list=0x0,
          metric_no_group=<optimized out>)
      at util/metricgroup.c:881
   #6  metricgroup__add_metric (metric=<optimized out>,
        metric_no_group=metric_no_group@entry=false, events=<optimized out>,
        events@entry=0x3ffd84fb878, metric_list=0x0,
        metric_list@entry=0x3ffd84fb868, map=0x0)
      at util/metricgroup.c:943
   #7  0x00000000011034ae in metricgroup__add_metric_list (map=0x13f9828 <map>,
        metric_list=0x3ffd84fb868, events=0x3ffd84fb878,
        metric_no_group=<optimized out>, list=<optimized out>)
      at util/metricgroup.c:988
   #8  parse_groups (perf_evlist=perf_evlist@entry=0x1e70260,
          str=str@entry=0x12f34b2 "IPC", metric_no_group=<optimized out>,
          metric_no_merge=<optimized out>,
          fake_pmu=fake_pmu@entry=0x1462f18 <perf_pmu.fake>,
          metric_events=0x3ffd84fba58, map=0x1)
      at util/metricgroup.c:1040
   #9  0x0000000001103eb2 in metricgroup__parse_groups_test(
  	evlist=evlist@entry=0x1e70260, map=map@entry=0x13f9828 <map>,
  	str=str@entry=0x12f34b2 "IPC",
  	metric_no_group=metric_no_group@entry=false,
  	metric_no_merge=metric_no_merge@entry=false,
  	metric_events=0x3ffd84fba58)
      at util/metricgroup.c:1082
   #10 0x00000000010c84d8 in __compute_metric (ratio2=0x0, name2=0x0,
          ratio1=<synthetic pointer>, name1=0x12f34b2 "IPC",
  	vals=0x3ffd84fbad8, name=0x12f34b2 "IPC")
      at tests/parse-metric.c:159
   #11 compute_metric (ratio=<synthetic pointer>, vals=0x3ffd84fbad8,
  	name=0x12f34b2 "IPC")
      at tests/parse-metric.c:189
   #12 test_ipc () at tests/parse-metric.c:208
.....
..... omitted many more lines

This test case was added with
commit 218ca91df4 ("perf tests: Add parse metric test for frontend metric").

When I compile with make DEBUG=y it works fine and I do not get a core dump.

It turned out that the above listed function call chain worked on a struct
pmu_event array which requires a trailing element with zeroes which was
missing. The marco map_for_each_event() loops over that array tests for members
metric_expr/metric_name/metric_group being non-NULL. Adding this element fixes
the issue.

Output after:

  [root@t35lp46 perf]# ./perf test 67
  67: Parse and process metrics                             : Ok
  [root@t35lp46 perf]#

Committer notes:

As Ian remarks, this is not s390 specific:

<quote Ian>
  This also shows up with address sanitizer on all architectures
  (perhaps change the patch title) and perhaps add a "Fixes: <commit>"
  tag.

  =================================================================
  ==4718==ERROR: AddressSanitizer: global-buffer-overflow on address
  0x55c93b4d59e8 at pc 0x55c93a1541e2 bp 0x7ffd24327c60 sp
  0x7ffd24327c58
  READ of size 8 at 0x55c93b4d59e8 thread T0
      #0 0x55c93a1541e1 in find_metric tools/perf/util/metricgroup.c:764:2
      #1 0x55c93a153e6c in __resolve_metric tools/perf/util/metricgroup.c:844:9
      #2 0x55c93a152f18 in resolve_metric tools/perf/util/metricgroup.c:881:9
      #3 0x55c93a1528db in metricgroup__add_metric
  tools/perf/util/metricgroup.c:943:9
      #4 0x55c93a151996 in metricgroup__add_metric_list
  tools/perf/util/metricgroup.c:988:9
      #5 0x55c93a1511b9 in parse_groups tools/perf/util/metricgroup.c:1040:8
      #6 0x55c93a1513e1 in metricgroup__parse_groups_test
  tools/perf/util/metricgroup.c:1082:9
      #7 0x55c93a0108ae in __compute_metric tools/perf/tests/parse-metric.c:159:8
      #8 0x55c93a010744 in compute_metric tools/perf/tests/parse-metric.c:189:9
      #9 0x55c93a00f5ee in test_ipc tools/perf/tests/parse-metric.c:208:2
      #10 0x55c93a00f1e8 in test__parse_metric
  tools/perf/tests/parse-metric.c:345:2
      #11 0x55c939fd7202 in run_test tools/perf/tests/builtin-test.c:410:9
      #12 0x55c939fd6736 in test_and_print tools/perf/tests/builtin-test.c:440:9
      #13 0x55c939fd58c3 in __cmd_test tools/perf/tests/builtin-test.c:661:4
      #14 0x55c939fd4e02 in cmd_test tools/perf/tests/builtin-test.c:807:9
      #15 0x55c939e4763d in run_builtin tools/perf/perf.c:313:11
      #16 0x55c939e46475 in handle_internal_command tools/perf/perf.c:365:8
      #17 0x55c939e4737e in run_argv tools/perf/perf.c:409:2
      #18 0x55c939e45f7e in main tools/perf/perf.c:539:3

  0x55c93b4d59e8 is located 0 bytes to the right of global variable
  'pme_test' defined in 'tools/perf/tests/parse-metric.c:17:25'
  (0x55c93b4d54a0) of size 1352
  SUMMARY: AddressSanitizer: global-buffer-overflow
  tools/perf/util/metricgroup.c:764:2 in find_metric
  Shadow bytes around the buggy address:
    0x0ab9a7692ae0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    0x0ab9a7692af0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    0x0ab9a7692b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    0x0ab9a7692b10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    0x0ab9a7692b20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  =>0x0ab9a7692b30: 00 00 00 00 00 00 00 00 00 00 00 00 00[f9]f9 f9
    0x0ab9a7692b40: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
    0x0ab9a7692b50: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
    0x0ab9a7692b60: f9 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 00
    0x0ab9a7692b70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    0x0ab9a7692b80: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
  Shadow byte legend (one shadow byte represents 8 application bytes):
    Addressable:           00
    Partially addressable: 01 02 03 04 05 06 07
    Heap left redzone:	   fa
    Freed heap region:	   fd
    Stack left redzone:	   f1
    Stack mid redzone:	   f2
    Stack right redzone:     f3
    Stack after return:	   f5
    Stack use after scope:   f8
    Global redzone:          f9
    Global init order:	   f6
    Poisoned by user:        f7
    Container overflow:	   fc
    Array cookie:            ac
    Intra object redzone:    bb
    ASan internal:           fe
    Left alloca redzone:     ca
    Right alloca redzone:    cb
    Shadow gap:              cc
</quote>

I'm also adding the missing "Fixes" tag and setting just .name to NULL,
as doing it that way is more compact (the compiler will zero out
everything else) and the table iterators look for .name being NULL as
the sentinel marking the end of the table.

Fixes: 0a507af9c6 ("perf tests: Add parse metric test for ipc metric")
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Link: http://lore.kernel.org/lkml/20200825071211.16959-1-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-09-01 12:15:52 -03:00
Jin Yao 943b69ac18 perf parse-events: Set exclude_guest=1 for user-space counting 
Currently if we run 'perf record -e cycles:u', exclude_guest=0.

But it doesn't make sense in most cases that we request for
user-space counting but we also get the guest report.

Of course, we also need to consider 'perf kvm' usage case that
authorized perf users on the host may only want to count guest user
space events. For example,

  # perf kvm --guest record -e cycles:u

When we have 'exclude_guest=1' for 'perf kvm' usage, we may get nothing
from guest events.

To keep perf semantics consistent and clear, this patch sets
exclude_guest=1 for user-space counting but except for 'perf kvm' usage.

Before:

  perf record -e cycles:u ./div
  perf evlist -v
  cycles:u: ..., exclude_kernel: 1, exclude_hv: 1, ...

After:
  perf record -e cycles:u ./div
  perf evlist -v
  cycles:u: ..., exclude_kernel: 1, exclude_hv: 1,  exclude_guest: 1, ...

Before:
  perf kvm --guest record -e cycles:u -vvv

perf_event_attr:

  size                             120
  { sample_period, sample_freq }   4000
  sample_type                      IP|TID|TIME|ID|CPU|PERIOD
  read_format                      ID
  disabled                         1
  inherit                          1
  exclude_kernel                   1
  exclude_hv                       1
  freq                             1
  sample_id_all                    1

After:

  perf kvm --guest record -e cycles:u -vvv

perf_event_attr:
  size                             120
  { sample_period, sample_freq }   4000
  sample_type                      IP|TID|TIME|ID|CPU|PERIOD
  read_format                      ID
  disabled                         1
  inherit                          1
  exclude_kernel                   1
  exclude_hv                       1
  freq                             1
  sample_id_all                    1

For Before/After, exclude_guest are both 0 for perf kvm usage.

perf test 6

 6: Parse event definition strings             : Ok

Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Tested-by: Like Xu <like.xu@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200814012120.16647-1-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-09-01 12:15:51 -03:00
Wei Li a060c1f12b perf record: Correct the help info of option "--no-bpf-event" 
The help info of option "--no-bpf-event" is wrongly described as "record
bpf events", correct it.

Committer testing:

  $ perf record -h bpf

   Usage: perf record [<options>] [<command>]
      or: perf record [<options>] -- <command> [<options>]

          --clang-opt <clang options>
                            options passed to clang when compiling BPF scriptlets
          --clang-path <clang path>
                            clang binary to use for compiling BPF scriptlets
          --no-bpf-event    do not record bpf events

  $

Fixes: 71184c6ab7 ("perf record: Replace option --bpf-event with --no-bpf-event")
Signed-off-by: Wei Li <liwei391@huawei.com>
Acked-by: Song Liu <songliubraving@fb.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Hanjun Guo <guohanjun@huawei.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Li Bin <huawei.libin@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/20200819031947.12115-1-liwei391@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-09-01 12:15:51 -03:00
Chris Wilson 20befbb108 perf tools: Use %zd for size_t printf formats on 32-bit 
A couple of trivial fixes for using %zd for size_t in the code
supporting the ZSTD compression library.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200820212501.24421-1-chris@chris-wilson.co.uk
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-09-01 12:15:21 -03:00
David S. Miller e9d572d94e Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 
Pablo Neira Ayuso says:

====================
Netfilter fixes for net

The following patchset contains Netfilter fixes for net:

1) Do not delete clash entries on reply, let them expire instead,
   from Florian Westphal.

2) Do not report EAGAIN to nfnetlink, otherwise this enters a busy loop.
   Update nfnetlink_unicast() to translate EAGAIN to ENOBUFS.

3) Remove repeated words in code comments, from Randy Dunlap.

4) Several patches for the flowtable selftests, from Fabian Frederick.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-31 11:22:30 -07:00
Linus Torvalds 8bb5021cc2 powerpc fixes for 5.9 #4 
Revert our removal of PROT_SAO, at least one user expressed an interest in using
 it on Power9. Instead don't allow it to be used in guests unless enabled
 explicitly at compile time.
 
 A fix for a crash introduced by a recent change to FP handling.
 
 Revert a change to our idle code that left Power10 with no idle support.
 
 One minor fix for the new scv system call path to set PPR.
 
 Fix a crash in our "generic" PMU if branch stack events were enabled.
 
 A fix for the IMC PMU, to correctly identify host kernel samples.
 
 The ADB_PMU powermac code was found to be incompatible with VMAP_STACK, so make
 them incompatible in Kconfig until the code can be fixed.
 
 A build fix in drivers/video/fbdev/controlfb.c, and a documentation fix.
 
 Thanks to:
   Alexey Kardashevskiy, Athira Rajeev, Christophe Leroy, Giuseppe Sacco,
   Madhavan Srinivasan, Milton Miller, Nicholas Piggin, Pratik Rajesh Sampat,
   Randy Dunlap, Shawn Anastasio, Vaidyanathan Srinivasan.
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Merge tag 'powerpc-5.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:

 - Revert our removal of PROT_SAO, at least one user expressed an
   interest in using it on Power9. Instead don't allow it to be used in
   guests unless enabled explicitly at compile time.

 - A fix for a crash introduced by a recent change to FP handling.

 - Revert a change to our idle code that left Power10 with no idle
   support.

 - One minor fix for the new scv system call path to set PPR.

 - Fix a crash in our "generic" PMU if branch stack events were enabled.

 - A fix for the IMC PMU, to correctly identify host kernel samples.

 - The ADB_PMU powermac code was found to be incompatible with
   VMAP_STACK, so make them incompatible in Kconfig until the code can
   be fixed.

 - A build fix in drivers/video/fbdev/controlfb.c, and a documentation
   fix.

Thanks to Alexey Kardashevskiy, Athira Rajeev, Christophe Leroy,
Giuseppe Sacco, Madhavan Srinivasan, Milton Miller, Nicholas Piggin,
Pratik Rajesh Sampat, Randy Dunlap, Shawn Anastasio, Vaidyanathan
Srinivasan.

* tag 'powerpc-5.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/32s: Disable VMAP stack which CONFIG_ADB_PMU
  Revert "powerpc/powernv/idle: Replace CPU feature check with PVR check"
  powerpc/perf: Fix reading of MSR[HV/PR] bits in trace-imc
  powerpc/perf: Fix crashes with generic_compat_pmu & BHRB
  powerpc/64s: Fix crash in load_fp_state() due to fpexc_mode
  powerpc/64s: scv entry should set PPR
  Documentation/powerpc: fix malformed table in syscall64-abi
  video: fbdev: controlfb: Fix build for COMPILE_TEST=y && PPC_PMAC=n
  selftests/powerpc: Update PROT_SAO test to skip ISA 3.1
  powerpc/64s: Disallow PROT_SAO in LPARs by default
  Revert "powerpc/64s: Remove PROT_SAO support"
 2020-08-30 10:56:12 -07:00
Linus Torvalds 6f0306d1bf USB fixes for 5.9-rc3 - take 2 
Let's try this again...  Here are some USB fixes for 5.9-rc3.
 
 This differs from the previous pull request for this release in that:
 	- the usb gadget patch now does not break some systems, and
 	  actually does what it was intended to do.  Many thanks to
 	  Marek Szyprowski for quickly noticing and testing the patch
 	  from Andy Shevchenko to resolve this issue.
 	- some more new USB quirks have been added to get some new
 	  devices to work properly based on user reports.
 
 Other than that, the original pull request patches are all here, and
 they contain:
 	- usb gadget driver fixes
 	- xhci driver fixes
 	- typec fixes
 	- new quirks and ids
 	- fixes for USB patches that went into 5.9-rc1.
 
 All of these have been tested in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Let's try this again...  Here are some USB fixes for 5.9-rc3.

  This differs from the previous pull request for this release in that
  the usb gadget patch now does not break some systems, and actually
  does what it was intended to do. Many thanks to Marek Szyprowski for
  quickly noticing and testing the patch from Andy Shevchenko to resolve
  this issue.

  Additionally, some more new USB quirks have been added to get some new
  devices to work properly based on user reports.

  Other than that, the patches are all here, and they contain:

   - usb gadget driver fixes

   - xhci driver fixes

   - typec fixes

   - new quirks and ids

   - fixes for USB patches that went into 5.9-rc1.

  All of these have been tested in linux-next with no reported issues"

* tag 'usb-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (33 commits)
  usb: storage: Add unusual_uas entry for Sony PSZ drives
  USB: Ignore UAS for JMicron JMS567 ATA/ATAPI Bridge
  usb: host: ohci-exynos: Fix error handling in exynos_ohci_probe()
  USB: gadget: u_f: Unbreak offset calculation in VLAs
  USB: quirks: Ignore duplicate endpoint on Sound Devices MixPre-D
  usb: typec: tcpm: Fix Fix source hard reset response for TDA 2.3.1.1 and TDA 2.3.1.2 failures
  USB: PHY: JZ4770: Fix static checker warning.
  USB: gadget: f_ncm: add bounds checks to ncm_unwrap_ntb()
  USB: gadget: u_f: add overflow checks to VLA macros
  xhci: Always restore EP_SOFT_CLEAR_TOGGLE even if ep reset failed
  xhci: Do warm-reset when both CAS and XDEV_RESUME are set
  usb: host: xhci: fix ep context print mismatch in debugfs
  usb: uas: Add quirk for PNY Pro Elite
  tools: usb: move to tools buildsystem
  USB: Fix device driver race
  USB: Also match device drivers using the ->match vfunc
  usb: host: xhci-tegra: fix tegra_xusb_get_phy()
  usb: host: xhci-tegra: otg usb2/usb3 port init
  usb: hcd: Fix use after free in usb_hcd_pci_remove()
  usb: typec: ucsi: Hold con->lock for the entire duration of ucsi_register_port()
  ...
 2020-08-30 10:51:03 -07:00
Fabian Frederick 67afbda696 selftests: netfilter: add command usage 
Avoid bad command arguments.
Based on tools/power/cpupower/bench/cpufreq-bench_plot.sh

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
 2020-08-28 20:12:00 +02:00
Fabian Frederick 2f4bba4ef7 selftests: netfilter: simplify command testing 
Fix some shellcheck SC2181 warnings:
"Check exit code directly with e.g. 'if mycmd;', not indirectly with
$?." as suggested by Stefano Brivio.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
 2020-08-28 20:11:59 +02:00
Fabian Frederick d721b68654 selftests: netfilter: remove unused variable in make_file() 
'who' variable was not used in make_file()
Problem found using Shellcheck

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
 2020-08-28 20:11:59 +02:00
Fabian Frederick a7bf670ebe selftests: netfilter: exit on invalid parameters 
exit script with comments when parameters are wrong during address
addition. No need for a message when trying to change MTU with lower
values: output is self-explanatory.
Use short testing sequence to avoid shellcheck warnings
(suggested by Stefano Brivio).

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
 2020-08-28 20:11:59 +02:00
Fabian Frederick da2f849e89 selftests: netfilter: fix header example 
nft_flowtable.sh is made for bash not sh.
Also give values which not return "RTNETLINK answers: Invalid argument"

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
 2020-08-28 20:11:58 +02:00
Jesper Dangaard Brouer fa4505675e selftests/bpf: Fix massive output from test_maps 
When stdout output from the selftests tool 'test_maps' gets redirected
into e.g file or pipe, then the output lines increase a lot (from 21
to 33949 lines).  This is caused by the printf that happens before the
fork() call, and there are user-space buffered printf data that seems
to be duplicated into the forked process.

To fix this fflush() stdout before the fork loop in __run_parallel().

Fixes: 1a97cf1fe5 ("selftests/bpf: speedup test_maps")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/159842985651.1050885.2154399297503372406.stgit@firesoul
 2020-08-28 13:58:19 +02:00
Jesper Dangaard Brouer 2b10af318a selftests/bpf: Fix test_progs-flavor run getting number of tests 
Commit 643e7233aa ("selftests/bpf: Test_progs option for getting number of
tests") introduced ability to getting number of tests, which is targeted
towards scripting.  As demonstrate in the commit the number can be use as a
shell variable for further scripting.

The test_progs program support "flavor", which is detected by the binary
have a "-flavor" in the executable name. One example is test_progs-no_alu32,
which load bpf-progs compiled with disabled alu32, located in dir 'no_alu32/'.

The problem is that invoking a "flavor" binary prints to stdout e.g.:
 "Switching to flavor 'no_alu32' subdirectory..."
Thus, intermixing with the number of tests, making it unusable for scripting.

Fix the issue by only printing "flavor" info when verbose -v option is used.

Fixes: 643e7233aa ("selftests/bpf: Test_progs option for getting number of tests")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/159827024012.923543.7104106594870150597.stgit@firesoul
 2020-08-24 21:09:24 -07:00
Shawn Anastasio 24ded46f53 selftests/powerpc: Update PROT_SAO test to skip ISA 3.1 
Since SAO support was removed from ISA 3.1, skip the
prot_sao test if PPC_FEATURE2_ARCH_3_1 is set.

Signed-off-by: Shawn Anastasio <shawn@anastas.io>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200821185558.35561-4-shawn@anastas.io
 2020-08-24 14:12:54 +10:00
Shawn Anastasio 12564485ed Revert "powerpc/64s: Remove PROT_SAO support" 
This reverts commit 5c9fa16e8a.

Since PROT_SAO can still be useful for certain classes of software,
reintroduce it. Concerns about guest migration for LPARs using SAO
will be addressed next.

Signed-off-by: Shawn Anastasio <shawn@anastas.io>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200821185558.35561-2-shawn@anastas.io
 2020-08-24 14:12:53 +10:00
Linus Torvalds 9d045ed1eb Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 
Pull networking fixes from David Miller:
 "Nothing earth shattering here, lots of small fixes (f.e. missing RCU
  protection, bad ref counting, missing memset(), etc.) all over the
  place:

   1) Use get_file_rcu() in task_file iterator, from Yonghong Song.

   2) There are two ways to set remote source MAC addresses in macvlan
      driver, but only one of which validates things properly. Fix this.
      From Alvin Šipraga.

   3) Missing of_node_put() in gianfar probing, from Sumera
      Priyadarsini.

   4) Preserve device wanted feature bits across multiple netlink
      ethtool requests, from Maxim Mikityanskiy.

   5) Fix rcu_sched stall in task and task_file bpf iterators, from
      Yonghong Song.

   6) Avoid reset after device destroy in ena driver, from Shay
      Agroskin.

   7) Missing memset() in netlink policy export reallocation path, from
      Johannes Berg.

   8) Fix info leak in __smc_diag_dump(), from Peilin Ye.

   9) Decapsulate ECN properly for ipv6 in ipv4 tunnels, from Mark
      Tomlinson.

  10) Fix number of data stream negotiation in SCTP, from David Laight.

  11) Fix double free in connection tracker action module, from Alaa
      Hleihel.

  12) Don't allow empty NHA_GROUP attributes, from Nikolay Aleksandrov"

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (46 commits)
  net: nexthop: don't allow empty NHA_GROUP
  bpf: Fix two typos in uapi/linux/bpf.h
  net: dsa: b53: check for timeout
  tipc: call rcu_read_lock() in tipc_aead_encrypt_done()
  net/sched: act_ct: Fix skb double-free in tcf_ct_handle_fragments() error flow
  net: sctp: Fix negotiation of the number of data streams.
  dt-bindings: net: renesas, ether: Improve schema validation
  gre6: Fix reception with IP6_TNL_F_RCV_DSCP_COPY
  hv_netvsc: Fix the queue_mapping in netvsc_vf_xmit()
  hv_netvsc: Remove "unlikely" from netvsc_select_queue
  bpf: selftests: global_funcs: Check err_str before strstr
  bpf: xdp: Fix XDP mode when no mode flags specified
  selftests/bpf: Remove test_align leftovers
  tools/resolve_btfids: Fix sections with wrong alignment
  net/smc: Prevent kernel-infoleak in __smc_diag_dump()
  sfc: fix build warnings on 32-bit
  net: phy: mscc: Fix a couple of spelling mistakes "spcified" -> "specified"
  libbpf: Fix map index used in error message
  net: gemini: Fix missing free_netdev() in error path of gemini_ethernet_port_probe()
  net: atlantic: Use readx_poll_timeout() for large timeout
  ...
 2020-08-23 10:52:33 -07:00
Linus Torvalds b2d9e99622 * PAE and PKU bugfixes for x86 
* selftests fix for new binutils
 * MMU notifier fix for arm64
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:

 - PAE and PKU bugfixes for x86

 - selftests fix for new binutils

 - MMU notifier fix for arm64

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: arm64: Only reschedule if MMU_NOTIFIER_RANGE_BLOCKABLE is not set
  KVM: Pass MMU notifier range flags to kvm_unmap_hva_range()
  kvm: x86: Toggling CR4.PKE does not load PDPTEs in PAE mode
  kvm: x86: Toggling CR4.SMAP does not load PDPTEs in PAE mode
  KVM: x86: fix access code passed to gva_to_gpa
  selftests: kvm: Use a shorter encoding to clear RAX
 2020-08-22 10:03:05 -07:00
David S. Miller 4af7b32f84 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 
Alexei Starovoitov says:

====================
pull-request: bpf 2020-08-21

The following pull-request contains BPF updates for your *net* tree.

We've added 11 non-merge commits during the last 5 day(s) which contain
a total of 12 files changed, 78 insertions(+), 24 deletions(-).

The main changes are:

1) three fixes in BPF task iterator logic, from Yonghong.

2) fix for compressed dwarf sections in vmlinux, from Jiri.

3) fix xdp attach regression, from Andrii.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-21 12:54:50 -07:00
Tobias Klauser b16fc097bc bpf: Fix two typos in uapi/linux/bpf.h 
Also remove trailing whitespaces in bpf_skb_get_tunnel_key example code.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200821133642.18870-1-tklauser@distanz.ch
 2020-08-21 12:26:17 -07:00
Wei Li 19684e969d perf: arm-spe: Fix check error when synthesizing events 
In arm_spe_read_record(), when we are processing an events packet,
'decoder->packet.index' is the length of payload, which has been
transformed in payloadlen(). So correct the check of 'idx'.

Signed-off-by: Wei Li <liwei391@huawei.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Hanjun Guo <guohanjun@huawei.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200724072628.35904-1-liwei391@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-08-21 10:22:23 -03:00
Arnaldo Carvalho de Melo 783abbd444 perf symbols: Add mwait_idle_with_hints.constprop.0 to the list of idle symbols 
The "mwait_idle_with_hints" one was already there, some compiler
artifact now adds this ".constprop.0" suffix, cover that one too.

At some point we need to put these in a special bucket and show it
somewhere on the screen.

Noticed building the kernel on a fedora:32 system using:

  gcc version 10.2.1 20200723 (Red Hat 10.2.1-1) (GCC)

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-08-21 10:22:23 -03:00
Tiezhu Yang 0c5f1acc2a perf top: Skip side-band event setup if HAVE_LIBBPF_SUPPORT is not set 
When I execute 'perf top' without HAVE_LIBBPF_SUPPORT, there exists the
following segmentation fault, skip the side-band event setup to fix it,
this is similar with commit 1101c872c8 ("perf record: Skip side-band
event setup if HAVE_LIBBPF_SUPPORT is not set").

  [yangtiezhu@linux perf]$ ./perf top
  <SNIP>
  perf: Segmentation fault
  Obtained 6 stack frames.
  ./perf(sighandler_dump_stack+0x5c) [0x12011b604]
  [0xffffffc010]
  ./perf(perf_mmap__read_init+0x3e) [0x1201feeae]
  ./perf() [0x1200d715c]
  /lib64/libpthread.so.0(+0xab9c) [0xffee10ab9c]
  /lib64/libc.so.6(+0x128f4c) [0xffedc08f4c]
  Segmentation fault
  [yangtiezhu@linux perf]$

I use git bisect to find commit b38d85ef49 ("perf bpf: Decouple
creating the evlist from adding the SB event") is the first bad commit,
so also add the Fixes tag.

Committer testing:

First build perf explicitely disabling libbpf:

  $ make NO_LIBBPF=1 O=/tmp/build/perf -C tools/perf install-bin && perf test python

Now make sure it isn't linked:

  $ perf -vv | grep -w bpf
                   bpf: [ OFF ]  # HAVE_LIBBPF_SUPPORT
  $
  $ nm ~/bin/perf | grep libbpf
  $

And now try to run 'perf top':

  # perf top
  perf: Segmentation fault
  -------- backtrace --------
  perf[0x5bcd6d]
  /lib64/libc.so.6(+0x3ca6f)[0x7fd0f5a66a6f]
  perf(perf_mmap__read_init+0x1e)[0x5e1afe]
  perf[0x4cc468]
  /lib64/libpthread.so.0(+0x9431)[0x7fd0f645a431]
  /lib64/libc.so.6(clone+0x42)[0x7fd0f5b2b912]
  #

Applying this patch fixes the issue.

Fixes: b38d85ef49 ("perf bpf: Decouple creating the evlist from adding the SB event")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xuefeng Li <lixuefeng@loongson.cn>
Link: http://lore.kernel.org/lkml/1597753837-16222-1-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-08-21 10:22:23 -03:00
David Ahern a74eaf1605 perf sched timehist: Fix use of CPU list with summary option 
Do not update thread stats or show idle summary unless CPU is in the
list of interest.

Fixes: c30d630d1b ("perf sched timehist: Add support for filtering on CPU")
Signed-off-by: David Ahern <dsahern@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lore.kernel.org/lkml/20200817170943.1486-1-dsahern@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-08-21 10:22:23 -03:00
Sumanth Korikkar 4b04e0decd perf test: Fix basic bpf filtering test 
BPF basic filtering test fails on s390x (when vmlinux debuginfo is
utilized instead of /proc/kallsyms)

Info:
- bpf_probe_load installs the bpf code at do_epoll_wait.
- For s390x, do_epoll_wait resolves to 3 functions including inlines.
  found inline addr: 0x43769e
  Probe point found: __s390_sys_epoll_wait+6
  found inline addr: 0x437290
  Probe point found: do_epoll_wait+0
  found inline addr: 0x4375d6
  Probe point found: __se_sys_epoll_wait+6
- add_bpf_event  creates evsel for every probe in a BPF object. This
  results in 3 evsels.

Solution:
- Expected result = 50% of the samples to be collected from epoll_wait *
  number of entries present in the evlist.

Committer testing:

  # perf test 42
  42: BPF filter                                            :
  42.1: Basic BPF filtering                                 : Ok
  42.2: BPF pinning                                         : Ok
  42.3: BPF prologue generation                             : Ok
  42.4: BPF relocation checker                              : Ok
  #

Signed-off-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Reviewed-by: Thomas Richter <tmricht@linux.ibm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: bpf@vger.kernel.org
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
LPU-Reference: 20200817072754.58344-1-sumanthk@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2020-08-21 10:22:23 -03:00