Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf updates from Ingo Molnar:
 "Lots of tooling updates - too many to list, here's a few highlights:

   - Various subcommand updates to 'perf trace', 'perf report', 'perf
     record', 'perf annotate', 'perf script', 'perf test', etc.

   - CPU and NUMA topology and affinity handling improvements,

   - HW tracing and HW support updates:
      - Intel PT updates
      - ARM CoreSight updates
      - vendor HW event updates

   - BPF updates

   - Tons of infrastructure updates, both on the build system and the
     library support side

   - Documentation updates.

   - ... and lots of other changes, see the changelog for details.

  Kernel side updates:

   - Tighten up kprobes blacklist handling, reduce the number of places
     where developers can install a kprobe and hang/crash the system.

   - Fix/enhance vma address filter handling.

   - Various PMU driver updates, small fixes and additions.

   - refcount_t conversions

   - BPF updates

   - error code propagation enhancements

   - misc other changes"

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (238 commits)
  perf script python: Add Python3 support to syscall-counts-by-pid.py
  perf script python: Add Python3 support to syscall-counts.py
  perf script python: Add Python3 support to stat-cpi.py
  perf script python: Add Python3 support to stackcollapse.py
  perf script python: Add Python3 support to sctop.py
  perf script python: Add Python3 support to powerpc-hcalls.py
  perf script python: Add Python3 support to net_dropmonitor.py
  perf script python: Add Python3 support to mem-phys-addr.py
  perf script python: Add Python3 support to failed-syscalls-by-pid.py
  perf script python: Add Python3 support to netdev-times.py
  perf tools: Add perf_exe() helper to find perf binary
  perf script: Handle missing fields with -F +..
  perf data: Add perf_data__open_dir_data function
  perf data: Add perf_data__(create_dir|close_dir) functions
  perf data: Fail check_backup in case of error
  perf data: Make check_backup work over directories
  perf tools: Add rm_rf_perf_data function
  perf tools: Add pattern name checking to rm_rf
  perf tools: Add depth checking to rm_rf
  perf data: Add global path holder
  ...

1 files changed, 31 insertions, 0 deletions

diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt
index 4ac7775fbc11..86f3dcc15f83 100644
--- a/tools/perf/Documentation/perf-config.txt
+++ b/tools/perf/Documentation/perf-config.txt
@@ -120,6 +120,10 @@ Given a $HOME/.perfconfig like this:
 		children = true
 		group = true
 
+	[llvm]
+		dump-obj = true
+		clang-opt = -g
+
 You can hide source code of annotate feature setting the config to false with
 
 	% perf config annotate.hide_src_code=true
@@ -553,6 +557,33 @@ trace.*::
 	trace.show_zeros::
 		Do not suppress syscall arguments that are equal to zero.
 
+llvm.*::
+	llvm.clang-path::
+		Path to clang. If omit, search it from $PATH.
+
+	llvm.clang-bpf-cmd-template::
+		Cmdline template. Below lines show its default value. Environment
+		variable is used to pass options.
+		"$CLANG_EXEC -D__KERNEL__ $CLANG_OPTIONS $KERNEL_INC_OPTIONS \
+		-Wno-unused-value -Wno-pointer-sign -working-directory \
+		$WORKING_DIR  -c $CLANG_SOURCE -target bpf -O2 -o -"
+
+	llvm.clang-opt::
+		Options passed to clang.
+
+	llvm.kbuild-dir::
+		kbuild directory. If not set, use /lib/modules/`uname -r`/build.
+		If set to "" deliberately, skip kernel header auto-detector.
+
+	llvm.kbuild-opts::
+		Options passed to 'make' when detecting kernel header options.
+
+	llvm.dump-obj::
+		Enable perf dump BPF object files compiled by LLVM.
+
+	llvm.opts::
+		Options passed to llc.
+
 SEE ALSO
 --------
 linkperf:perf[1]