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

Pull perf updates from Ingo Molnar:
 "The main kernel side changes were:

   - uprobes enhancements (Masami Hiramatsu)

   - Uncore group events enhancements (David Carrillo-Cisneros)

   - x86 Intel: Add support for Skylake server uncore PMUs (Kan Liang)

   - x86 Intel: LBR cleanups and enhancements, for better branch
     annotation tracking (Peter Zijlstra)

   - x86 Intel: Add support for PTWRITE and power event tracing
     (Alexander Shishkin)

   - ... various fixes, cleanups and smaller enhancements.

  Lots of tooling changes - a couple of highlights:

   - Support event group view with hierarchy mode in 'perf top' and
     'perf report' (Namhyung Kim)

     e.g.:

     $ perf record -e '{cycles,instructions}' make
     $ perf report --hierarchy --stdio
     ...
     #   Overhead  Command / Shared Object / Symbol
     # ......................  ..................................
     ...
     25.74%  27.18%sh
     19.96%  24.14%libc-2.24.so
      9.55%  14.64%[.] __strcmp_sse2
      1.54%   0.00%[.] __tfind
      1.07%   1.13%[.] _int_malloc
      0.95%   0.00%[.] __strchr_sse2
      0.89%   1.39%[.] __tsearch
      0.76%   0.00%[.] strlen

   - Add branch stack / basic block info to 'perf annotate --stdio',
     where for each branch, we add an asm comment after the instruction
     with information on how often it was taken and predicted. See
     example with color output at:

       http://vger.kernel.org/~acme/perf/annotate_basic_blocks.png

     (Peter Zijlstra)

   - Add support for using symbols in address filters with Intel PT and
     ARM CoreSight (hardware assisted tracing facilities) (Adrian
     Hunter, Mathieu Poirier)

   - Add support for interacting with Coresight PMU ETMs/PTMs, that are
     IP blocks to perform hardware assisted tracing on a ARM CPU core
     (Mathieu Poirier)

   - Support generating cross arch probes, i.e. if you specify a vmlinux
     file for different arch than the one in the host machine,

        $ perf probe --definition function_name args

     will generate the probe definition string needed to append to the
     target machine /sys/kernel/debug/tracing/kprobes_events file, using
     scripting (Masami Hiramatsu).

   - Allow configuring the default 'perf report -s' sort order in
     ~/.perfconfig, for instance, "sym,dso" may be more fitting for
     kernel developers. (Arnaldo Carvalho de Melo)

   - ... plus lots of other changes, refactorings, features and fixes"

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (149 commits)
  perf tests: Add dwarf unwind test for powerpc
  perf probe: Match linkage name with mangled name
  perf probe: Fix to cut off incompatible chars from group name
  perf probe: Skip if the function address is 0
  perf probe: Ignore the error of finding inline instance
  perf intel-pt: Fix decoding when there are address filters
  perf intel-pt: Enable decoder to handle TIP.PGD with missing IP
  perf intel-pt: Read address filter from AUXTRACE_INFO event
  perf intel-pt: Record address filter in AUXTRACE_INFO event
  perf intel-pt: Add a helper function for processing AUXTRACE_INFO
  perf intel-pt: Fix missing error codes processing auxtrace_info
  perf intel-pt: Add support for recording the max non-turbo ratio
  perf intel-pt: Fix snapshot overlap detection decoder errors
  perf probe: Increase debug level of SDT debug messages
  perf record: Add support for using symbols in address filters
  perf symbols: Add dso__last_symbol()
  perf record: Fix error paths
  perf record: Rename label 'out_symbol_exit'
  perf script: Fix vanished idle symbols
  perf evsel: Add support for address filters
  ...

1 files changed, 94 insertions, 0 deletions

diff --git a/tools/perf/arch/powerpc/tests/regs_load.S b/tools/perf/arch/powerpc/tests/regs_load.S
new file mode 100644
index 000000000000..d76c9a32f327
--- /dev/null
+++ b/tools/perf/arch/powerpc/tests/regs_load.S
@@ -0,0 +1,94 @@
+#include <linux/linkage.h>
+
+/* Offset is based on macros from arch/powerpc/include/uapi/asm/ptrace.h. */
+#define R0	 0
+#define R1	 1 * 8
+#define R2	 2 * 8
+#define R3	 3 * 8
+#define R4	 4 * 8
+#define R5	 5 * 8
+#define R6	 6 * 8
+#define R7	 7 * 8
+#define R8	 8 * 8
+#define R9	 9 * 8
+#define R10	10 * 8
+#define R11	11 * 8
+#define R12	12 * 8
+#define R13	13 * 8
+#define R14	14 * 8
+#define R15	15 * 8
+#define R16	16 * 8
+#define R17	17 * 8
+#define R18	18 * 8
+#define R19	19 * 8
+#define R20	20 * 8
+#define R21	21 * 8
+#define R22	22 * 8
+#define R23	23 * 8
+#define R24	24 * 8
+#define R25	25 * 8
+#define R26	26 * 8
+#define R27	27 * 8
+#define R28	28 * 8
+#define R29	29 * 8
+#define R30	30 * 8
+#define R31	31 * 8
+#define NIP	32 * 8
+#define CTR	35 * 8
+#define LINK	36 * 8
+#define XER	37 * 8
+
+.globl perf_regs_load
+perf_regs_load:
+	std 0, R0(3)
+	std 1, R1(3)
+	std 2, R2(3)
+	std 3, R3(3)
+	std 4, R4(3)
+	std 5, R5(3)
+	std 6, R6(3)
+	std 7, R7(3)
+	std 8, R8(3)
+	std 9, R9(3)
+	std 10, R10(3)
+	std 11, R11(3)
+	std 12, R12(3)
+	std 13, R13(3)
+	std 14, R14(3)
+	std 15, R15(3)
+	std 16, R16(3)
+	std 17, R17(3)
+	std 18, R18(3)
+	std 19, R19(3)
+	std 20, R20(3)
+	std 21, R21(3)
+	std 22, R22(3)
+	std 23, R23(3)
+	std 24, R24(3)
+	std 25, R25(3)
+	std 26, R26(3)
+	std 27, R27(3)
+	std 28, R28(3)
+	std 29, R29(3)
+	std 30, R30(3)
+	std 31, R31(3)
+
+	/* store NIP */
+	mflr 4
+	std 4, NIP(3)
+
+	/* Store LR */
+	std 4, LINK(3)
+
+	/* Store XER */
+	mfxer 4
+	std 4, XER(3)
+
+	/* Store CTR */
+	mfctr 4
+	std 4, CTR(3)
+
+	/* Restore original value of r4 */
+	ld 4, R4(3)
+
+	blr