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  1. 31 8月, 2021 2 次提交
  3. 30 8月, 2021 13 次提交
    • J
      perf tests: Fix *probe_vfs_getname.sh test failures · a05b4270
      由 James Clark 提交于 
      The commit 4d6101f5 ("perf probe: Clarify error message about
not finding kernel modules debuginfo") changed the error message "Failed
to find the path for kernel" to "Failed to find the path for the
kernel".

Update the regex so that the tests still skip rather than fail when
kernel debug symbols aren't present.
Signed-off-by: NJames Clark <james.clark@arm.com>
Acked-by: NNamhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Link: http://lore.kernel.org/lkml/20210825164259.833222-1-james.clark@arm.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      a05b4270
    • A
      perf bench inject-buildid: Handle writen() errors · edf7b4a2
      由 Arnaldo Carvalho de Melo 提交于 
      The build on fedora:35 and fedora:rawhide with clang is failing with:

  49    41.00 fedora:35                     : FAIL clang version 13.0.0 (Fedora 13.0.0~rc1-1.fc35)
    bench/inject-buildid.c:351:6: error: variable 'len' set but not used [-Werror,-Wunused-but-set-variable]
            u64 len = 0;
                ^
    1 error generated.
    make[3]: *** [/git/perf-5.14.0-rc7/tools/build/Makefile.build:139: bench] Error 2
  50    41.11 fedora:rawhide                : FAIL clang version 13.0.0 (Fedora 13.0.0~rc1-1.fc35)
    bench/inject-buildid.c:351:6: error: variable 'len' set but not used [-Werror,-Wunused-but-set-variable]
            u64 len = 0;
                ^
    1 error generated.
    make[3]: *** [/git/perf-5.14.0-rc7/tools/build/Makefile.build:139: bench] Error 2

That 'len' variable is not used at all, so just make sure all the
synthesize_RECORD() routines return ssize_t to propagate the writen()
return, as it may fail, ditch the 'ret' var and bail out if those
routines fail.

Fixes: 0bf02a0d ("perf bench: Add build-id injection benchmark")
Acked-by: NNamhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/CAM9d7cgEZNSor+B+7Y2C+QYGme_v5aH0Zn0RLfxoQ+Fy83EHrg@mail.gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      edf7b4a2
    • L
      perf unwind: Do not overwrite FEATURE_CHECK_LDFLAGS-libunwind-{x86,aarch64} · cdf32b44
      由 Li Huafei 提交于 
      When setting LIBUNWIND_DIR, we first set

 FEATURE_CHECK_LDFLAGS-libunwind-{aarch64,x86} = -L$(LIBUNWIND_DIR)/lib.

<committer note>
This happens a bit before, the overwritting, in:

  libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
  define libunwind_arch_set_flags_code
    FEATURE_CHECK_CFLAGS-libunwind-$(1)  = -I$(LIBUNWIND_DIR)/include
    FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
  endef

  ifdef LIBUNWIND_DIR
    LIBUNWIND_CFLAGS  = -I$(LIBUNWIND_DIR)/include
    LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
    LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64
    $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
  endif

Look at that 'foreach' on all the LIBUNWIND_ARCHS.
</>

After commit 5c4d7c82 ("perf unwind: Do not put libunwind-{x86,aarch64}
in FEATURE_TESTS_BASIC"), FEATURE_CHECK_LDFLAGS-libunwind-{x86,aarch64} is
overwritten. As a result, the remote libunwind libraries cannot be searched
from $(LIBUNWIND_DIR)/lib directory during feature check tests. Fix it with
variable appending.

Before this patch:

  perf$ make VF=1 LIBUNWIND_DIR=/opt/libunwind_aarch64
   BUILD:   Doing 'make -j16' parallel build
  <SNIP>
  ...
  ...                    libopencsd: [ OFF ]
  ...                 libunwind-x86: [ OFF ]
  ...              libunwind-x86_64: [ OFF ]
  ...                 libunwind-arm: [ OFF ]
  ...             libunwind-aarch64: [ OFF ]
  ...         libunwind-debug-frame: [ OFF ]
  ...     libunwind-debug-frame-arm: [ OFF ]
  ... libunwind-debug-frame-aarch64: [ OFF ]
  ...                           cxx: [ OFF ]
  <SNIP>

  perf$ cat ../build/feature/test-libunwind-aarch64.make.output
  /usr/bin/ld: cannot find -lunwind-aarch64
  /usr/bin/ld: cannot find -lunwind-aarch64
  collect2: error: ld returned 1 exit status

After this patch:

  perf$ make VF=1 LIBUNWIND_DIR=/opt/libunwind_aarch64
   BUILD:   Doing 'make -j16' parallel build
  <SNIP>
  ...                    libopencsd: [ OFF ]
  ...                 libunwind-x86: [ OFF ]
  ...              libunwind-x86_64: [ OFF ]
  ...                 libunwind-arm: [ OFF ]
  ...             libunwind-aarch64: [ on  ]
  ...         libunwind-debug-frame: [ OFF ]
  ...     libunwind-debug-frame-arm: [ OFF ]
  ... libunwind-debug-frame-aarch64: [ OFF ]
  ...                           cxx: [ OFF ]
  <SNIP>

  perf$ cat ../build/feature/test-libunwind-aarch64.make.output

  perf$ ldd ./perf
        linux-vdso.so.1 (0x00007ffdf07da000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f30953dc000)
        librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f30951d4000)
        libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f3094e36000)
        libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f3094c32000)
        libelf.so.1 => /usr/lib/x86_64-linux-gnu/libelf.so.1 (0x00007f3094a18000)
        libdw.so.1 => /usr/lib/x86_64-linux-gnu/libdw.so.1 (0x00007f30947cc000)
        libunwind-x86_64.so.8 => /usr/lib/x86_64-linux-gnu/libunwind-x86_64.so.8 (0x00007f30945ad000)
        libunwind.so.8 => /usr/lib/x86_64-linux-gnu/libunwind.so.8 (0x00007f3094392000)
        liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007f309416c000)
        libunwind-aarch64.so.8 => not found
        libslang.so.2 => /lib/x86_64-linux-gnu/libslang.so.2 (0x00007f3093c8a000)
        libpython2.7.so.1.0 => /usr/local/lib/libpython2.7.so.1.0 (0x00007f309386b000)
        libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f309364e000)
        libnuma.so.1 => /usr/lib/x86_64-linux-gnu/libnuma.so.1 (0x00007f3093443000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f3093052000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f3096097000)
        libbz2.so.1.0 => /lib/x86_64-linux-gnu/libbz2.so.1.0 (0x00007f3092e42000)
        libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1 (0x00007f3092c3f000)

Fixes: 5c4d7c82 ("perf unwind: Do not put libunwind-{x86,aarch64} in FEATURE_TESTS_BASIC")
Signed-off-by: NLi Huafei <lihuafei1@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: He Kuang <hekuang@huawei.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: Zhang Jinhao <zhangjinhao2@huawei.com>
Link: http://lore.kernel.org/lkml/20210823134340.60955-1-lihuafei1@huawei.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      cdf32b44
    • A
      perf config: Fix caching and memory leak in perf_home_perfconfig() · 261f4911
      由 Arnaldo Carvalho de Melo 提交于 
      Acaict, perf_home_perfconfig() is supposed to cache the result of
home_perfconfig, which returns the default location of perfconfig for
the user, given the HOME environment variable.

However, the current implementation calls home_perfconfig every time
perf_home_perfconfig() is called (so no caching is actually performed),
replacing the previous pointer, thus also causing a memory leak.

This patch adds a check of whether either config or failed is set and,
in that case, directly returns config without calling home_perfconfig at
each invocation.

Fixes: f5f03e19 ("perf config: Add perf_home_perfconfig function")
Signed-off-by: NRiccardo Mancini <rickyman7@gmail.com>
Cc: Alexander Shishkin <alexander.shishkin@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: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Link: http://lore.kernel.org/lkml/20210820130817.740536-1-rickyman7@gmail.com
[ Removed needless double check for the 'failed' variable ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      261f4911
    • A
      perf tools: Fixup get_current_dir_name() compilation · 128dbd78
      由 Alexey Dobriyan 提交于 
      strdup() prototype doesn't live in stdlib.h .

Add limits.h for PATH_MAX definition as well.

This fixes the build on Android.
Signed-off-by: NAlexey Dobriyan (SK hynix) <adobriyan@gmail.com>
Acked-by: NNamhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/YRukaQbrgDWhiwGr@localhost.localdomainSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      128dbd78
    • A
      Merge remote-tracking branch 'torvalds/master' into perf/core · c635813f
      由 Arnaldo Carvalho de Melo 提交于 
      To pick up fixes.
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      c635813f
    • L
      Linux 5.14 · 7d2a07b7
      由 Linus Torvalds 提交于
      7d2a07b7
    • L
      Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux · 90ac80dc
      由 Linus Torvalds 提交于 
      Pull clk fix from Stephen Boyd:
 "One hotfix for a NULL pointer deref in the Renesas usb clk driver"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: renesas: rcar-usb2-clock-sel: Fix kernel NULL pointer dereference
      90ac80dc
    • L
      Merge tag 'sched_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 537b57bd
      由 Linus Torvalds 提交于 
      Pull scheduler fixes from Borislav Petkov:

 - Have get_push_task() check whether current has migration disabled and
   thus avoid useless invocations of the migration thread

 - Rework initialization flow so that all rq->core's are initialized,
   even of CPUs which have not been onlined yet, so that iterating over
   them all works as expected

* tag 'sched_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched: Fix get_push_task() vs migrate_disable()
  sched: Fix Core-wide rq->lock for uninitialized CPUs
      537b57bd
    • L
      Merge tag 'irq_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · f20a2637
      由 Linus Torvalds 提交于 
      Pull irq fix from Borislav Petkov:

 - Have msix_mask_all() check a global control which says whether MSI-X
   masking should be done and thus make it usable on Xen-PV too

* tag 'irq_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  PCI/MSI: Skip masking MSI-X on Xen PV
      f20a2637
    • L
      Merge tag 'perf_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 98d006eb
      由 Linus Torvalds 提交于 
      Pull perf fixes from Borislav Petkov:

 - Prevent the amd/power module from being removed while in use

 - Mark AMD IBS as not supporting content exclusion

 - Add a workaround for AMD erratum #1197 where IBS registers might not
   be restored properly after exiting CC6 state

 - Fix a potential truncation of a 32-bit variable due to shifting

 - Read the correct bits describing the number of configurable address
   ranges on Intel PT

* tag 'perf_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/amd/power: Assign pmu.module
  perf/x86/amd/ibs: Extend PERF_PMU_CAP_NO_EXCLUDE to IBS Op
  perf/x86/amd/ibs: Work around erratum #1197
  perf/x86/intel/uncore: Fix integer overflow on 23 bit left shift of a u32
  perf/x86/intel/pt: Fix mask of num_address_ranges
      98d006eb
    • L
      Merge tag 'x86_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 072a2767
      由 Linus Torvalds 提交于 
      Pull x86 fixes from Borislav Petkov:

 - Fix build error on RHEL where -Werror=maybe-uninitialized is set.

 - Restore the firmware's IDT when calling EFI boot services and before
   ExitBootServices() has been called. This fixes a boot failure on what
   appears to be a tablet with 32-bit UEFI running a 64-bit kernel.

* tag 'x86_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/resctrl: Fix a maybe-uninitialized build warning treated as error
  x86/efi: Restore Firmware IDT before calling ExitBootServices()
      072a2767
    • H
      Revert "parisc: Add assembly implementations for memset, strlen, strcpy, strncpy and strcat" · f6a3308d
      由 Helge Deller 提交于 
      This reverts commit 83af58f8.

It turns out that at least the assembly implementation for strncpy() was
buggy.  Revert the whole commit and return back to the default coding.
Signed-off-by: NHelge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # v5.4+
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      f6a3308d
  5. 29 8月, 2021 4 次提交
  7. 28 8月, 2021 10 次提交
  9. 27 8月, 2021 11 次提交