1. 04 Nov, 2020 9 commits
  2. 03 Nov, 2020 30 commits
    • Linus Torvalds's avatar
      Merge tag 'perf-tools-for-v5.10-2020-11-03' of... · 4ef8451b
      Linus Torvalds authored
      Merge tag 'perf-tools-for-v5.10-2020-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
      
      Pull perf tools fixes from Arnaldo Carvalho de Melo:
       "Only fixes and a sync of the headers so that the perf build is silent:
      
         - Fix visibility attribute in python module init code with newer gcc
      
         - Fix DRAM_BW_Use 0 issue for CLX/SKX in intel JSON vendor event
           files
      
         - Fix the build on new fedora by removing LTO compiler options when
           building perl support
      
         - Remove broken __no_tail_call attribute
      
         - Fix segfault when trying to trace events by cgroup
      
         - Fix crash with non-jited BPF progs
      
         - Increase buffer size in TUI browser, fixing format truncation
      
         - Fix printing of build-id for objects lacking one
      
         - Fix byte swapping for ino_generation field in MMAP2 perf.data
           records
      
         - Fix byte swapping for CGROUP perf.data records, for cross arch
           analysis of perf.data files
      
         - Fix the fast path of feature detection
      
         - Update kernel header copies"
      
      * tag 'perf-tools-for-v5.10-2020-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (23 commits)
        tools feature: Fixup fast path feature detection
        perf tools: Add missing swap for cgroup events
        perf tools: Add missing swap for ino_generation
        perf tools: Initialize output buffer in build_id__sprintf
        perf hists browser: Increase size of 'buf' in perf_evsel__hists_browse()
        tools include UAPI: Update linux/mount.h copy
        tools headers UAPI: Update tools's copy of linux/perf_event.h
        tools kvm headers: Update KVM headers from the kernel sources
        tools UAPI: Update copy of linux/mman.h from the kernel sources
        tools arch x86: Sync the msr-index.h copy with the kernel sources
        tools x86 headers: Update required-features.h header from the kernel
        tools x86 headers: Update cpufeatures.h headers copies
        tools headers UAPI: Update fscrypt.h copy
        tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
        tools headers UAPI: Sync prctl.h with the kernel sources
        perf scripting python: Avoid declaring function pointers with a visibility attribute
        perf tools: Remove broken __no_tail_call attribute
        perf vendor events: Fix DRAM_BW_Use 0 issue for CLX/SKX
        perf trace: Fix segfault when trying to trace events by cgroup
        perf tools: Fix crash with non-jited bpf progs
        ...
      4ef8451b
    • Linus Torvalds's avatar
      Merge tag 'docs-5.10-warnings' of git://git.lwn.net/linux · e6b0bd61
      Linus Torvalds authored
      Pull documentation build warning fixes from Jonathan Corbet:
       "This contains a series of warning fixes from Mauro; once applied, the
        number of warnings from the once-noisy docs build process is nearly
        zero.
      
        Getting to this point has required a lot of work; once there,
        hopefully we can keep things that way.
      
        I have packaged this as a separate pull because it does a fair amount
        of reaching outside of Documentation/. The changes are all in comments
        and in code placement. It's all been in linux-next since last week"
      
      * tag 'docs-5.10-warnings' of git://git.lwn.net/linux: (24 commits)
        docs: SafeSetID: fix a warning
        amdgpu: fix a few kernel-doc markup issues
        selftests: kselftest_harness.h: fix kernel-doc markups
        drm: amdgpu_dm: fix a typo
        gpu: docs: amdgpu.rst: get rid of wrong kernel-doc markups
        drm: amdgpu: kernel-doc: update some adev parameters
        docs: fs: api-summary.rst: get rid of kernel-doc include
        IB/srpt: docs: add a description for cq_size member
        locking/refcount: move kernel-doc markups to the proper place
        docs: lockdep-design: fix some warning issues
        MAINTAINERS: fix broken doc refs due to yaml conversion
        ice: docs fix a devlink info that broke a table
        crypto: sun8x-ce*: update entries to its documentation
        net: phy: remove kernel-doc duplication
        mm: pagemap.h: fix two kernel-doc markups
        blk-mq: docs: add kernel-doc description for a new struct member
        docs: userspace-api: add iommu.rst to the index file
        docs: hwmon: mp2975.rst: address some html build warnings
        docs: net: statistics.rst: remove a duplicated kernel-doc
        docs: kasan.rst: add two missing blank lines
        ...
      e6b0bd61
    • Linus Torvalds's avatar
      Merge tag 'docs-5.10-3' of git://git.lwn.net/linux · ce2e33ba
      Linus Torvalds authored
      Pull documentation fixes from Jonathan Corbet:
       "A small number of fixes, plus a build tweak to respect the desire for
        silence in V=0 builds"
      
      * tag 'docs-5.10-3' of git://git.lwn.net/linux:
        docs: fix automarkup regression on Python 2
        documentation: arm: sunxi: add Allwinner H6 documents
        scripts: kernel-doc: split typedef complex regex
        scripts: kernel-doc: fix typedef parsing
        docs: Makefile: honor V=0 for docs building
      ce2e33ba
    • Linus Torvalds's avatar
      Merge tag 'x86_seves_for_v5.10_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 43c83418
      Linus Torvalds authored
      Pull x86 SEV-ES fixes from Borislav Petkov:
       "A couple of changes to the SEV-ES code to perform more stringent
        hypervisor checks before enabling encryption (Joerg Roedel)"
      
      * tag 'x86_seves_for_v5.10_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/sev-es: Do not support MMIO to/from encrypted memory
        x86/head/64: Check SEV encryption before switching to kernel page-table
        x86/boot/compressed/64: Check SEV encryption in 64-bit boot-path
        x86/boot/compressed/64: Sanity-check CPUID results in the early #VC handler
        x86/boot/compressed/64: Introduce sev_status
      43c83418
    • David Howells's avatar
      afs: Fix incorrect freeing of the ACL passed to the YFS ACL store op · f4c79144
      David Howells authored
      The cleanup for the yfs_store_opaque_acl2_operation calls the wrong
      function to destroy the ACL content buffer.  It's an afs_acl struct, not
      a yfs_acl struct - and the free function for latter may pass invalid
      pointers to kfree().
      
      Fix this by using the afs_acl_put() function.  The yfs_acl_put()
      function is then no longer used and can be removed.
      
      	general protection fault, probably for non-canonical address 0x7ebde00000000: 0000 [#1] SMP PTI
      	...
      	RIP: 0010:compound_head+0x0/0x11
      	...
      	Call Trace:
      	 virt_to_cache+0x8/0x51
      	 kfree+0x5d/0x79
      	 yfs_free_opaque_acl+0x16/0x29
      	 afs_put_operation+0x60/0x114
      	 __vfs_setxattr+0x67/0x72
      	 __vfs_setxattr_noperm+0x66/0xe9
      	 vfs_setxattr+0x67/0xce
      	 setxattr+0x14e/0x184
      	 __do_sys_fsetxattr+0x66/0x8f
      	 do_syscall_64+0x2d/0x3a
      	 entry_SYSCALL_64_after_hwframe+0x44/0xa9
      
      Fixes: e49c7b2f ("afs: Build an abstraction around an "operation" concept")
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      f4c79144
    • David Howells's avatar
      afs: Fix warning due to unadvanced marshalling pointer · c80afa1d
      David Howells authored
      When using the afs.yfs.acl xattr to change an AuriStor ACL, a warning
      can be generated when the request is marshalled because the buffer
      pointer isn't increased after adding the last element, thereby
      triggering the check at the end if the ACL wasn't empty.  This just
      causes something like the following warning, but doesn't stop the call
      from happening successfully:
      
          kAFS: YFS.StoreOpaqueACL2: Request buffer underflow (36<108)
      
      Fix this simply by increasing the count prior to the check.
      
      Fixes: f5e45463 ("afs: Implement YFS ACL setting")
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      c80afa1d
    • Jonathan Corbet's avatar
      docs: fix automarkup regression on Python 2 · 4f3e6906
      Jonathan Corbet authored
      It turns out that the Python 2 re module lacks the ASCII flag, so don't try
      to use it there.
      
      Fixes: f66e47f9 ("docs: automarkup.py: Fix regexes to solve sphinx 3 warnings")
      Reported-by: default avatarDafna Hirschfeld <dafna.hirschfeld@collabora.com>
      Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
      4f3e6906
    • Arnaldo Carvalho de Melo's avatar
      tools feature: Fixup fast path feature detection · 5d020cbd
      Arnaldo Carvalho de Melo authored
      22dd1ac9 ("tools: Remove feature-libelf-mmap feature detection")
      correctly simplified the this feature detection, but forgot to remove
      the call to the removed function in the main() function for the
      test-all.c fast path feature detection, making it fail and thus do all
      the feature detection individually, fix it.
      
        $ cat /tmp/build/perf/feature/test-all.make.output
        test-all.c: In function ‘main’:
        test-all.c:188:2: error: implicit declaration of function ‘main_test_libelf_mmap’; did you mean ‘main_test_libelf’? [-Werror=implicit-function-declaration]
          188 |  main_test_libelf_mmap();
              |  ^~~~~~~~~~~~~~~~~~~~~
              |  main_test_libelf
        cc1: all warnings being treated as errors
        $ vim tools/build/feature/test-all.c
        $ rm -rf /tmp/build/perf ; mkdir -p /tmp/build/perf ;make V=1 -k O=/tmp/build/perf  -C tools/perf install-bin ; perf test python
        <SNIP>
        $ cat /tmp/build/perf/feature/test-all.make.output
        $
      
      Fixes: 22dd1ac9 ("tools: Remove feature-libelf-mmap feature detection")
      Cc: Alexei Starovoitov <ast@kernel.org>
      Cc: Andrii Nakryiko <andriin@fb.com>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      5d020cbd
    • Namhyung Kim's avatar
      perf tools: Add missing swap for cgroup events · 2c589d93
      Namhyung Kim authored
      It was missed to add a swap function for PERF_RECORD_CGROUP.
      
      Fixes: ba78c1c5 ("perf tools: Basic support for CGROUP event")
      Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
      Acked-by: default avatarJiri Olsa <jolsa@redhat.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Ian Rogers <irogers@google.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Link: http://lore.kernel.org/lkml/20201102140228.303657-1-namhyung@kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      2c589d93
    • Jiri Olsa's avatar
      perf tools: Add missing swap for ino_generation · fe01adb7
      Jiri Olsa authored
      We are missing swap for ino_generation field.
      
      Fixes: 5c5e854b ("perf tools: Add attr->mmap2 support")
      Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
      Acked-by: default avatarNamhyung Kim <namhyung@kernel.org>
      Link: https://lore.kernel.org/r/20201101233103.3537427-2-jolsa@kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      fe01adb7
    • Jiri Olsa's avatar
      perf tools: Initialize output buffer in build_id__sprintf · 6311951d
      Jiri Olsa authored
      We display garbage for undefined build_id objects, because we don't
      initialize the output buffer.
      Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
      Acked-by: default avatarNamhyung Kim <namhyung@kernel.org>
      Link: https://lore.kernel.org/r/20201101233103.3537427-1-jolsa@kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      6311951d
    • Song Liu's avatar
      perf hists browser: Increase size of 'buf' in perf_evsel__hists_browse() · 86449b12
      Song Liu authored
      Making perf with gcc-9.1.1 generates the following warning:
      
          CC       ui/browsers/hists.o
        ui/browsers/hists.c: In function 'perf_evsel__hists_browse':
        ui/browsers/hists.c:3078:61: error: '%d' directive output may be \
        truncated writing between 1 and 11 bytes into a region of size \
        between 2 and 12 [-Werror=format-truncation=]
      
         3078 |       "Max event group index to sort is %d (index from 0 to %d)",
              |                                                             ^~
        ui/browsers/hists.c:3078:7: note: directive argument in the range [-2147483648, 8]
         3078 |       "Max event group index to sort is %d (index from 0 to %d)",
              |       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        In file included from /usr/include/stdio.h:937,
                         from ui/browsers/hists.c:5:
      
      IOW, the string in line 3078 might be too long for buf[] of 64 bytes.
      
      Fix this by increasing the size of buf[] to 128.
      
      Fixes: dbddf174  ("perf report/top TUI: Support hotkeys to let user select any event for sorting")
      Signed-off-by: default avatarSong Liu <songliubraving@fb.com>
      Acked-by: default avatarJiri Olsa <jolsa@kernel.org>
      Cc: Jin Yao <yao.jin@linux.intel.com>
      Cc: stable@vger.kernel.org # v5.7+
      Link: http://lore.kernel.org/lkml/20201030235431.534417-1-songliubraving@fb.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      86449b12
    • Arnaldo Carvalho de Melo's avatar
      tools include UAPI: Update linux/mount.h copy · 42cc0e70
      Arnaldo Carvalho de Melo authored
      To pick the changes from:
      
        dab741e0 ("Add a "nosymfollow" mount option.")
      
      That ends up adding support for the new MS_NOSYMFOLLOW mount flag:
      
        $ tools/perf/trace/beauty/mount_flags.sh > before
        $ cp include/uapi/linux/mount.h tools/include/uapi/linux/mount.h
        $ tools/perf/trace/beauty/mount_flags.sh > after
        $ diff -u before after
        --- before	2020-11-03 08:51:28.117997454 -0300
        +++ after	2020-11-03 08:51:38.992218869 -0300
        @@ -7,6 +7,7 @@
         	[32 ? (ilog2(32) + 1) : 0] = "REMOUNT",
         	[64 ? (ilog2(64) + 1) : 0] = "MANDLOCK",
         	[128 ? (ilog2(128) + 1) : 0] = "DIRSYNC",
        +	[256 ? (ilog2(256) + 1) : 0] = "NOSYMFOLLOW",
         	[1024 ? (ilog2(1024) + 1) : 0] = "NOATIME",
         	[2048 ? (ilog2(2048) + 1) : 0] = "NODIRATIME",
         	[4096 ? (ilog2(4096) + 1) : 0] = "BIND",
        $
      
      So now one can use it in --filter expressions for tracepoints.
      
      This silences this perf build warnings:
      
        Warning: Kernel ABI header at 'tools/include/uapi/linux/mount.h' differs from latest version at 'include/uapi/linux/mount.h'
        diff -u tools/include/uapi/linux/mount.h include/uapi/linux/mount.h
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Al Viro <viro@zeniv.linux.org.uk>
      Cc: Ian Rogers <irogers@google.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Mattias Nissler <mnissler@chromium.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      42cc0e70
    • Arnaldo Carvalho de Melo's avatar
      tools headers UAPI: Update tools's copy of linux/perf_event.h · a9e27f5f
      Arnaldo Carvalho de Melo authored
      The diff is just tabs versus spaces, trivial.
      
      This silences this perf tools build warning:
      
        Warning: Kernel ABI header at 'tools/include/uapi/linux/perf_event.h' differs from latest version at 'include/uapi/linux/perf_event.h'
        diff -u tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h
      
      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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      a9e27f5f
    • Arnaldo Carvalho de Melo's avatar
      tools kvm headers: Update KVM headers from the kernel sources · aa04899a
      Arnaldo Carvalho de Melo authored
      Some should cause changes in tooling, like the one adding LAST_EXCP, but
      the way it is structured end up not making that happen.
      
      The new SVM_EXIT_INVPCID should get used by arch/x86/util/kvm-stat.c,
      in the svm_exit_reasons table.
      
      The tools/perf/trace/beauty part has scripts to catch changes and
      automagically create tables, like tools/perf/trace/beauty/kvm_ioctl.sh,
      but changes are needed to make tools/perf/arch/x86/util/kvm-stat.c catch
      those automatically.
      
      These were handled by the existing scripts:
      
        $ tools/perf/trace/beauty/kvm_ioctl.sh > before
        $ cp include/uapi/linux/kvm.h tools/include/uapi/linux/kvm.h
        $ tools/perf/trace/beauty/kvm_ioctl.sh > after
        $ diff -u before after
        --- before	2020-11-03 08:43:52.910728608 -0300
        +++ after	2020-11-03 08:44:04.273959984 -0300
        @@ -89,6 +89,7 @@
         	[0xbf] = "SET_NESTED_STATE",
         	[0xc0] = "CLEAR_DIRTY_LOG",
         	[0xc1] = "GET_SUPPORTED_HV_CPUID",
        +	[0xc6] = "X86_SET_MSR_FILTER",
         	[0xe0] = "CREATE_DEVICE",
         	[0xe1] = "SET_DEVICE_ATTR",
         	[0xe2] = "GET_DEVICE_ATTR",
        $
        $ tools/perf/trace/beauty/vhost_virtio_ioctl.sh > before
        $ cp include/uapi/linux/vhost.h tools/include/uapi/linux/vhost.h
        $
        $ tools/perf/trace/beauty/vhost_virtio_ioctl.sh > after
        $ diff -u before after
        --- before	2020-11-03 08:45:55.522225198 -0300
        +++ after	2020-11-03 08:46:12.881578666 -0300
        @@ -37,4 +37,5 @@
         	[0x71] = "VDPA_GET_STATUS",
         	[0x73] = "VDPA_GET_CONFIG",
         	[0x76] = "VDPA_GET_VRING_NUM",
        +	[0x78] = "VDPA_GET_IOVA_RANGE",
         };
        $
      
      This addresses these perf build warnings:
      
        Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h'
        diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h
        Warning: Kernel ABI header at 'tools/arch/s390/include/uapi/asm/sie.h' differs from latest version at 'arch/s390/include/uapi/asm/sie.h'
        diff -u tools/arch/s390/include/uapi/asm/sie.h arch/s390/include/uapi/asm/sie.h
        Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h'
        diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h
        Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/svm.h' differs from latest version at 'arch/x86/include/uapi/asm/svm.h'
        diff -u tools/arch/x86/include/uapi/asm/svm.h arch/x86/include/uapi/asm/svm.h
        Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
        diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
        Warning: Kernel ABI header at 'tools/include/uapi/linux/vhost.h' differs from latest version at 'include/uapi/linux/vhost.h'
        diff -u tools/include/uapi/linux/vhost.h include/uapi/linux/vhost.h
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Yarygin <yarygin@linux.vnet.ibm.com>
      Cc: Borislav Petkov <bp@suse.de>
      Cc: Christian Borntraeger <borntraeger@de.ibm.com>
      Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Ian Rogers <irogers@google.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Joerg Roedel <jroedel@suse.de>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      aa04899a
    • Arnaldo Carvalho de Melo's avatar
      tools UAPI: Update copy of linux/mman.h from the kernel sources · 97a3863b
      Arnaldo Carvalho de Melo authored
        e47168f3 ("powerpc/8xx: Support 16k hugepages with 4k pages")
      
      That don't cause any changes in tooling, just addresses this perf build
      warning:
      
        Warning: Kernel ABI header at 'tools/include/uapi/linux/mman.h' differs from latest version at 'include/uapi/linux/mman.h'
        diff -u tools/include/uapi/linux/mman.h include/uapi/linux/mman.h
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
      Cc: Ian Rogers <irogers@google.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      97a3863b
    • Arnaldo Carvalho de Melo's avatar
      tools arch x86: Sync the msr-index.h copy with the kernel sources · 32b734e0
      Arnaldo Carvalho de Melo authored
      To pick up the changes in:
      
        29dcc60f ("x86/boot/compressed/64: Add stage1 #VC handler")
        36e1be8a ("perf/x86/amd/ibs: Fix raw sample data accumulation")
        59a854e2 ("perf/x86/intel: Support TopDown metrics on Ice Lake")
        7b2c05a1 ("perf/x86/intel: Generic support for hardware TopDown metrics")
        99e40204 ("x86/msr: Move the F15h MSRs where they belong")
        b57de6cd ("x86/sev-es: Add SEV-ES Feature Detection")
        ed7bde7a ("cpufreq: intel_pstate: Allow enable/disable energy efficiency")
        f0f2f9fe ("x86/msr-index: Define an IA32_PASID MSR")
      
      That cause these changes in tooling:
      
        $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > before
        $ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h
        $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > after
        $ diff -u before after
        --- before	2020-10-19 13:27:33.195274425 -0300
        +++ after	2020-10-19 13:27:44.144507610 -0300
        @@ -113,6 +113,8 @@
         	[0x00000309] = "CORE_PERF_FIXED_CTR0",
         	[0x0000030a] = "CORE_PERF_FIXED_CTR1",
         	[0x0000030b] = "CORE_PERF_FIXED_CTR2",
        +	[0x0000030c] = "CORE_PERF_FIXED_CTR3",
        +	[0x00000329] = "PERF_METRICS",
         	[0x00000345] = "IA32_PERF_CAPABILITIES",
         	[0x0000038d] = "CORE_PERF_FIXED_CTR_CTRL",
         	[0x0000038e] = "CORE_PERF_GLOBAL_STATUS",
        @@ -222,6 +224,7 @@
         	[0x00000774] = "HWP_REQUEST",
         	[0x00000777] = "HWP_STATUS",
         	[0x00000d90] = "IA32_BNDCFGS",
        +	[0x00000d93] = "IA32_PASID",
         	[0x00000da0] = "IA32_XSS",
         	[0x00000dc0] = "LBR_INFO_0",
         	[0x00000ffc] = "IA32_BNDCFGS_RSVD",
        @@ -279,6 +282,7 @@
         	[0xc0010115 - x86_AMD_V_KVM_MSRs_offset] = "VM_IGNNE",
         	[0xc0010117 - x86_AMD_V_KVM_MSRs_offset] = "VM_HSAVE_PA",
         	[0xc001011f - x86_AMD_V_KVM_MSRs_offset] = "AMD64_VIRT_SPEC_CTRL",
        +	[0xc0010130 - x86_AMD_V_KVM_MSRs_offset] = "AMD64_SEV_ES_GHCB",
         	[0xc0010131 - x86_AMD_V_KVM_MSRs_offset] = "AMD64_SEV",
         	[0xc0010140 - x86_AMD_V_KVM_MSRs_offset] = "AMD64_OSVW_ID_LENGTH",
         	[0xc0010141 - x86_AMD_V_KVM_MSRs_offset] = "AMD64_OSVW_STATUS",
        $
      
      Which causes these parts of tools/perf/ to be rebuilt:
      
        CC       /tmp/build/perf/trace/beauty/tracepoints/x86_msr.o
        DESCEND  plugins
        GEN      /tmp/build/perf/python/perf.so
        INSTALL  trace_plugins
        LD       /tmp/build/perf/trace/beauty/tracepoints/perf-in.o
        LD       /tmp/build/perf/trace/beauty/perf-in.o
        LD       /tmp/build/perf/perf-in.o
        LINK     /tmp/build/perf/per
      
      At some point these should just be tables read by perf on demand.
      
      This addresses this perf tools build warning:
      
        diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h
        Warning: Kernel ABI header at 'tools/arch/x86/include/asm/msr-index.h' differs from latest version at 'arch/x86/include/asm/msr-index.h'
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Borislav Petkov <bp@suse.de>
      Cc: Fenghua Yu <fenghua.yu@intel.com>
      Cc: Ian Rogers <irogers@google.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Joerg Roedel <jroedel@suse.de>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Kim Phillips <kim.phillips@amd.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
      Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      32b734e0
    • Arnaldo Carvalho de Melo's avatar
      tools x86 headers: Update required-features.h header from the kernel · 8b2fc25a
      Arnaldo Carvalho de Melo authored
      To pick the changes from:
      
        ecac7181 ("x86/paravirt: Use CONFIG_PARAVIRT_XXL instead of CONFIG_PARAVIRT")
      
      That don entail any changes in tooling, just addressing these perf tools
      build warning:
      
        Warning: Kernel ABI header at 'tools/arch/x86/include/asm/required-features.h' differs from latest version at 'arch/x86/include/asm/required-features.h'
        diff -u tools/arch/x86/include/asm/required-features.h arch/x86/include/asm/required-features.h
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Ian Rogers <irogers@google.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Juergen Gross <jgross@suse.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      8b2fc25a
    • Arnaldo Carvalho de Melo's avatar
      tools x86 headers: Update cpufeatures.h headers copies · 40a6bbf5
      Arnaldo Carvalho de Melo authored
      To pick the changes from:
      
        5866e920 ("x86/cpu: Add hardware-enforced cache coherency as a CPUID feature")
        ff4f8281 ("x86/cpufeatures: Enumerate ENQCMD and ENQCMDS instructions")
        360e7c5c ("x86/cpufeatures: Add SEV-ES CPU feature")
        18ec63fa ("x86/cpufeatures: Enumerate TSX suspend load address tracking instructions")
        e48cb1a3 ("x86/resctrl: Enumerate per-thread MBA controls")
      
      Which don't cause any changes in tooling, just addresses these build
      warnings:
      
        Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
        diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h
        Warning: Kernel ABI header at 'tools/arch/x86/include/asm/disabled-features.h' differs from latest version at 'arch/x86/include/asm/disabled-features.h'
        diff -u tools/arch/x86/include/asm/disabled-features.h arch/x86/include/asm/disabled-features.h
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Borislav Petkov <bp@suse.de>
      Cc: Fenghua Yu <fenghua.yu@intel.com>
      Cc: Ian Rogers <irogers@google.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Krish Sadhukhan <krish.sadhukhan@oracle.com>
      Cc: Kyung Min Park <kyung.min.park@intel.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Tom Lendacky <thomas.lendacky@amd.com>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      40a6bbf5
    • Arnaldo Carvalho de Melo's avatar
      tools headers UAPI: Update fscrypt.h copy · d0448d6a
      Arnaldo Carvalho de Melo authored
      To get the changes from:
      
        c7f0207b ("fscrypt: make "#define fscrypt_policy" user-only")
      
      That don't cause any changes in tools/perf, only addresses this perf
      tools build warning:
      
        Warning: Kernel ABI header at 'tools/include/uapi/linux/fscrypt.h' differs from latest version at 'include/uapi/linux/fscrypt.h'
        diff -u tools/include/uapi/linux/fscrypt.h include/uapi/linux/fscrypt.h
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Eric Biggers <ebiggers@google.com>
      Cc: Ian Rogers <irogers@google.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      d0448d6a
    • Arnaldo Carvalho de Melo's avatar
      tools headers UAPI: Sync drm/i915_drm.h with the kernel sources · 9e228f48
      Arnaldo Carvalho de Melo authored
      To pick the changes in:
      
        13149e8b ("drm/i915: add syncobj timeline support")
        cda9edd0 ("drm/i915: introduce a mechanism to extend execbuf2")
      
      That don't result in any changes in tooling, just silences this perf
      build warning:
      
        Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h'
        diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Ian Rogers <irogers@google.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      9e228f48
    • Arnaldo Carvalho de Melo's avatar
      tools headers UAPI: Sync prctl.h with the kernel sources · ad6330ac
      Arnaldo Carvalho de Melo authored
      To get the changes in:
      
        1c101da8 ("arm64: mte: Allow user control of the tag check mode via prctl()")
        af5ce952 ("arm64: mte: Allow user control of the generated random tags via prctl()")
      
      Which don't cause any change in tooling, only addresses this perf build
      warning:
      
        Warning: Kernel ABI header at 'tools/include/uapi/linux/prctl.h' differs from latest version at 'include/uapi/linux/prctl.h'
        diff -u tools/include/uapi/linux/prctl.h include/uapi/linux/prctl.h
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Cc: Ian Rogers <irogers@google.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      ad6330ac
    • Arnaldo Carvalho de Melo's avatar
      perf scripting python: Avoid declaring function pointers with a visibility attribute · d0e7b0c7
      Arnaldo Carvalho de Melo authored
      To avoid this:
      
        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);
              |  ^~~~~~~~~~~~~~
      
      That started breaking when building with PYTHON=python3 and these gcc
      versions (I haven't checked with the clang ones, maybe it breaks there
      as well):
      
        # export PERF_TARBALL=http://192.168.86.5/perf/perf-5.9.0.tar.xz
        # dm  fedora:33 fedora:rawhide
           1   107.80 fedora:33         : Ok   gcc (GCC) 10.2.1 20201005 (Red Hat 10.2.1-5), clang version 11.0.0 (Fedora 11.0.0-1.fc33)
           2    92.47 fedora:rawhide    : Ok   gcc (GCC) 10.2.1 20201016 (Red Hat 10.2.1-6), clang version 11.0.0 (Fedora 11.0.0-1.fc34)
        #
      
      Avoid that by ditching that 'initfunc' function pointer with its:
      
          #define Py_EXPORTED_SYMBOL _attribute_ ((visibility ("default")))
          #define PyMODINIT_FUNC Py_EXPORTED_SYMBOL PyObject*
      
      And just call PyImport_AppendInittab() at the end of the ifdef python3
      block with the functions that were being attributed to that initfunc.
      
      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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      d0e7b0c7
    • Peter Zijlstra's avatar
      perf tools: Remove broken __no_tail_call attribute · 9ae1e990
      Peter Zijlstra authored
      The GCC specific __attribute__((optimize)) attribute does not what is
      commonly expected and is explicitly recommended against using in
      production code by the GCC people.
      
      Unlike what is often expected, it doesn't add to the optimization flags,
      but it fully replaces them, loosing any and all optimization flags
      provided by the compiler commandline.
      
      The only guaranteed upon means of inhibiting tail-calls is by placing a
      volatile asm with side-effects after the call such that the tail-call simply
      cannot be done.
      
      Given the original commit wasn't specific on which calls were the problem, this
      removal might re-introduce the problem, which can then be re-analyzed and cured
      properly.
      Signed-off-by: default avatarPeter Zijlstra <peterz@infradead.org>
      Acked-by: default avatarArd Biesheuvel <ardb@kernel.org>
      Acked-by: default avatarMiguel Ojeda <ojeda@kernel.org>
      Cc: Alexei Starovoitov <ast@kernel.org>
      Cc: Arnd Bergmann <arnd@arndb.de>
      Cc: Arvind Sankar <nivedita@alum.mit.edu>
      Cc: Daniel Borkmann <daniel@iogearbox.net>
      Cc: Geert Uytterhoeven <geert@linux-m68k.org>
      Cc: Ian Rogers <irogers@google.com>
      Cc: Josh Poimboeuf <jpoimboe@redhat.com>
      Cc: Kees Kook <keescook@chromium.org>
      Cc: Martin Liška <mliska@suse.cz>
      Cc: Nick Desaulniers <ndesaulniers@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Link: http://lore.kernel.org/lkml/20201028081123.GT2628@hirez.programming.kicks-ass.netSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      9ae1e990
    • Jin Yao's avatar
      perf vendor events: Fix DRAM_BW_Use 0 issue for CLX/SKX · 0dfbe4c6
      Jin Yao authored
      Ian reports an issue that the metric DRAM_BW_Use often remains 0.
      
      The metric expression for DRAM_BW_Use on CLX/SKX:
      
      "( 64 * ( uncore_imc@cas_count_read@ + uncore_imc@cas_count_write@ ) / 1000000000 ) / duration_time"
      
      The counts of uncore_imc/cas_count_read/ and uncore_imc/cas_count_write/
      are scaled up by 64, that is to turn a count of cache lines into bytes,
      the count is then divided by 1000000000 to give GB.
      
      However, the counts of uncore_imc/cas_count_read/ and
      uncore_imc/cas_count_write/ have been scaled yet.
      
      The scale values are from sysfs, such as
      /sys/devices/uncore_imc_0/events/cas_count_read.scale.
      It's 6.103515625e-5 (64 / 1024.0 / 1024.0).
      
      So if we use original metric expression, the result is not correct.
      
      But the difficulty is, for SKL client, the counts are not scaled.
      
      The metric expression for DRAM_BW_Use on SKL:
      
      "64 * ( arb@event\\=0x81\\,umask\\=0x1@ + arb@event\\=0x84\\,umask\\=0x1@ ) / 1000000 / duration_time / 1000"
      
      root@kbl-ppc:~# perf stat -M DRAM_BW_Use -a -- sleep 1
      
       Performance counter stats for 'system wide':
      
                     190      arb/event=0x84,umask=0x1/ #     1.86 DRAM_BW_Use
              29,093,178      arb/event=0x81,umask=0x1/
           1,000,703,287 ns   duration_time
      
             1.000703287 seconds time elapsed
      
      The result is expected.
      
      So the easy way is just change the metric expression for CLX/SKX.
      This patch changes the metric expression to:
      
      "( ( ( uncore_imc@cas_count_read@ + uncore_imc@cas_count_write@ ) * 1048576 ) / 1000000000 ) / duration_time"
      
      1048576 = 1024 * 1024.
      
      Before (tested on CLX):
      
      root@lkp-csl-2sp5 ~# perf stat -M DRAM_BW_Use -a -- sleep 1
      
       Performance counter stats for 'system wide':
      
                  765.35 MiB  uncore_imc/cas_count_read/ #     0.00 DRAM_BW_Use
                    5.42 MiB  uncore_imc/cas_count_write/
              1001515088 ns   duration_time
      
             1.001515088 seconds time elapsed
      
      After:
      
      root@lkp-csl-2sp5 ~# perf stat -M DRAM_BW_Use -a -- sleep 1
      
       Performance counter stats for 'system wide':
      
                  767.95 MiB  uncore_imc/cas_count_read/ #     0.80 DRAM_BW_Use
                    5.02 MiB  uncore_imc/cas_count_write/
              1001900010 ns   duration_time
      
             1.001900010 seconds time elapsed
      
      Fixes: 038d3b53 ("perf vendor events intel: Update CascadelakeX events to v1.08")
      Fixes: b5ff7f27 ("perf vendor events: Update SkylakeX events to v1.21")
      Signed-off-by: default avatarJin Yao <yao.jin@linux.intel.com>
      Acked-by: default avatarIan Rogers <irogers@google.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/20201023005334.7869-1-yao.jin@linux.intel.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      0dfbe4c6
    • Stanislav Ivanichkin's avatar
      perf trace: Fix segfault when trying to trace events by cgroup · a6293f36
      Stanislav Ivanichkin authored
        # ./perf trace -e sched:sched_switch -G test -a sleep 1
        perf: Segmentation fault
        Obtained 11 stack frames.
        ./perf(sighandler_dump_stack+0x43) [0x55cfdc636db3]
        /lib/x86_64-linux-gnu/libc.so.6(+0x3efcf) [0x7fd23eecafcf]
        ./perf(parse_cgroups+0x36) [0x55cfdc673f36]
        ./perf(+0x3186ed) [0x55cfdc70d6ed]
        ./perf(parse_options_subcommand+0x629) [0x55cfdc70e999]
        ./perf(cmd_trace+0x9c2) [0x55cfdc5ad6d2]
        ./perf(+0x1e8ae0) [0x55cfdc5ddae0]
        ./perf(+0x1e8ded) [0x55cfdc5ddded]
        ./perf(main+0x370) [0x55cfdc556f00]
        /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe6) [0x7fd23eeadb96]
        ./perf(_start+0x29) [0x55cfdc557389]
        Segmentation fault
        #
      
       It happens because "struct trace" in option->value is passed to the
       parse_cgroups function instead of "struct evlist".
      
      Fixes: 9ea42ba4 ("perf trace: Support setting cgroups as targets")
      Signed-off-by: default avatarStanislav Ivanichkin <sivanichkin@yandex-team.ru>
      Tested-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      Acked-by: default avatarNamhyung Kim <namhyung@kernel.org>
      Cc: Dmitry Monakhov <dmtrmonakhov@yandex-team.ru>
      Link: http://lore.kernel.org/lkml/20201027094357.94881-1-sivanichkin@yandex-team.ruSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      a6293f36
    • Tommi Rantala's avatar
      perf tools: Fix crash with non-jited bpf progs · ab8bf5f2
      Tommi Rantala authored
      The addr in PERF_RECORD_KSYMBOL events for non-jited bpf progs points to
      the bpf interpreter, ie. within kernel text section. When processing the
      unregister event, this causes unexpected removal of vmlinux_map,
      crashing perf later in cleanup:
      
        # perf record -- timeout --signal=INT 2s /usr/share/bcc/tools/execsnoop
        PCOMM            PID    PPID   RET ARGS
        [ perf record: Woken up 1 times to write data ]
        [ perf record: Captured and wrote 0.208 MB perf.data (5155 samples) ]
        perf: tools/include/linux/refcount.h:131: refcount_sub_and_test: Assertion `!(new > val)' failed.
        Aborted (core dumped)
      
        # perf script -D|grep KSYM
        0 0xa40 [0x48]: PERF_RECORD_KSYMBOL addr ffffffffa9b6b530 len 0 type 1 flags 0x0 name bpf_prog_f958f6eb72ef5af6
        0 0xab0 [0x48]: PERF_RECORD_KSYMBOL addr ffffffffa9b6b530 len 0 type 1 flags 0x0 name bpf_prog_8c42dee26e8cd4c2
        0 0xb20 [0x48]: PERF_RECORD_KSYMBOL addr ffffffffa9b6b530 len 0 type 1 flags 0x0 name bpf_prog_f958f6eb72ef5af6
        108563691893 0x33d98 [0x58]: PERF_RECORD_KSYMBOL addr ffffffffa9b6b3b0 len 0 type 1 flags 0x0 name bpf_prog_bc5697a410556fc2_syscall__execve
        108568518458 0x34098 [0x58]: PERF_RECORD_KSYMBOL addr ffffffffa9b6b3f0 len 0 type 1 flags 0x0 name bpf_prog_45e2203c2928704d_do_ret_sys_execve
        109301967895 0x34830 [0x58]: PERF_RECORD_KSYMBOL addr ffffffffa9b6b3b0 len 0 type 1 flags 0x1 name bpf_prog_bc5697a410556fc2_syscall__execve
        109302007356 0x348b0 [0x58]: PERF_RECORD_KSYMBOL addr ffffffffa9b6b3f0 len 0 type 1 flags 0x1 name bpf_prog_45e2203c2928704d_do_ret_sys_execve
        perf: tools/include/linux/refcount.h:131: refcount_sub_and_test: Assertion `!(new > val)' failed.
      
      Here the addresses match the bpf interpreter:
      
        # grep -e ffffffffa9b6b530 -e ffffffffa9b6b3b0 -e ffffffffa9b6b3f0 /proc/kallsyms
        ffffffffa9b6b3b0 t __bpf_prog_run224
        ffffffffa9b6b3f0 t __bpf_prog_run192
        ffffffffa9b6b530 t __bpf_prog_run32
      
      Fix by not allowing vmlinux_map to be removed by PERF_RECORD_KSYMBOL
      unregister event.
      Signed-off-by: default avatarTommi Rantala <tommi.t.rantala@nokia.com>
      Acked-by: default avatarJiri Olsa <jolsa@redhat.com>
      Tested-by: default avatarJiri Olsa <jolsa@redhat.com>
      Link: https://lore.kernel.org/r/20201016114718.54332-1-tommi.t.rantala@nokia.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      ab8bf5f2
    • Arnaldo Carvalho de Melo's avatar
      tools headers UAPI: Update process_madvise affected files · 263e452e
      Arnaldo Carvalho de Melo authored
      To pick the changes from:
      
        ecb8ac8b ("mm/madvise: introduce process_madvise() syscall: an external memory hinting API")
      
      That addresses these perf build warning:
      
        Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
        diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
        Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
        diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Ian Rogers <irogers@google.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Minchan Kim <minchan@kernel.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      263e452e
    • Arnaldo Carvalho de Melo's avatar
      perf tools: Update copy of libbpf's hashmap.c · e555b4b8
      Arnaldo Carvalho de Melo authored
      To pick the changes in:
      
        85367030 ("libbpf: Centralize poisoning and poison reallocarray()")
        7d9c71e1 ("libbpf: Extract generic string hashing function for reuse")
      
      That don't entail any changes in tools/perf.
      
      This addresses this perf build warning:
      
        Warning: Kernel ABI header at 'tools/perf/util/hashmap.h' differs from latest version at 'tools/lib/bpf/hashmap.h'
        diff -u tools/perf/util/hashmap.h tools/lib/bpf/hashmap.h
      
      Not a kernel ABI, its just that this uses the mechanism in place for
      checking kernel ABI files drift.
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexei Starovoitov <ast@kernel.org>
      Cc: Andrii Nakryiko <andriin@fb.com>
      Cc: Ian Rogers <irogers@google.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      e555b4b8
    • Justin M. Forbes's avatar
      perf tools: Remove LTO compiler options when building perl support · b773ea65
      Justin M. Forbes authored
      To avoid breaking the build by mixing files compiled with things coming
      from distro specific compiler options for perl with the rest of perf,
      i.e. to avoid this:
      
        `.gnu.debuglto_.debug_macro' referenced in section `.gnu.debuglto_.debug_macro' of /tmp/build/perf/util/scripting-engines/perf-in.o: defined in discarded section `.gnu.debuglto_.debug_macro[wm4.stdcpredef.h.19.8dc41bed5d9037ff9622e015fb5f0ce3]' of /tmp/build/perf/util/scripting-engines/perf-in.o
      
      Noticed on Fedora 33.
      Signed-off-by: default avatarJustin M. Forbes <jforbes@fedoraproject.org>
      Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1593431
      Cc: Jiri Olsa <jolsa@redhat.com>
      Link: https://src.fedoraproject.org/rpms/kernel-tools/c/589a32b62f0c12516ab7b34e3dd30d450145bfa4?branch=masterSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      b773ea65
  3. 02 Nov, 2020 1 commit