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Merge tag 'perf-urgent-2020-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull more perf updates from Thomas Gleixner:
 "Perf updates all over the place:

  core:

   - Support for cgroup tracking in samples to allow cgroup based
     analysis

  tools:

   - Support for cgroup analysis

   - Commandline option and hotkey for perf top to change the sort order

   - A set of fixes all over the place

   - Various build system related improvements

   - Updates of the X86 pmu event JSON data

   - Documentation updates"

* tag 'perf-urgent-2020-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (55 commits)
  perf python: Fix clang detection to strip out options passed in $CC
  perf tools: Support Python 3.8+ in Makefile
  perf script: Fix invalid read of directory entry after closedir()
  perf script report: Fix SEGFAULT when using DWARF mode
  perf script: add -S/--symbols documentation
  perf pmu-events x86: Use CPU_CLK_UNHALTED.THREAD in Kernel_Utilization metric
  perf events parser: Add missing Intel CPU events to parser
  perf script: Allow --symbol to accept hexadecimal addresses
  perf report/top TUI: Fix title line formatting
  perf top: Support hotkey to change sort order
  perf top: Support --group-sort-idx to change the sort order
  perf symbols: Fix arm64 gap between kernel start and module end
  perf build-test: Honour JOBS to override detection of number of cores
  perf script: Add --show-cgroup-events option
  perf top: Add --all-cgroups option
  perf record: Add --all-cgroups option
  perf record: Support synthesizing cgroup events
  perf report: Add 'cgroup' sort key
  perf cgroup: Maintain cgroup hierarchy
  perf tools: Basic support for CGROUP event
  ...
This commit is contained in:
Linus Torvalds
2020-04-05 12:26:24 -07:00
parent d5ca32738f 7dc41b9b99
commit c48b07226b
100 changed files with 3181 additions and 622 deletions
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3
tools/build/Makefile.feature
View File

@@ -72,7 +72,8 @@ FEATURE_TESTS_BASIC := \
setns \
libaio \
libzstd \
disassembler-four-args
disassembler-four-args \
file-handle
# FEATURE_TESTS_BASIC + FEATURE_TESTS_EXTRA is the complete list
# of all feature tests

5
tools/build/feature/Makefile
View File

@@ -68,7 +68,8 @@ FILES= \
test-llvm-version.bin \
test-libaio.bin \
test-libzstd.bin \
test-clang-bpf-global-var.bin
test-clang-bpf-global-var.bin \
test-file-handle.bin
FILES := $(addprefix $(OUTPUT),$(FILES))
@@ -327,6 +328,8 @@ $(OUTPUT)test-clang-bpf-global-var.bin:
$(CLANG) -S -g -target bpf -o - $(patsubst %.bin,%.c,$(@F)) | \
grep BTF_KIND_VAR
$(OUTPUT)test-file-handle.bin:
$(BUILD)
###############################

17
tools/build/feature/test-file-handle.c Normal file
View File

@@ -0,0 +1,17 @@
#define _GNU_SOURCE
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <inttypes.h>
int main(void)
{
struct {
struct file_handle fh;
uint64_t cgroup_id;
} handle;
int mount_id;
name_to_handle_at(AT_FDCWD, "/", &handle.fh, &mount_id, 0);
return 0;
}