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

Pull perf updates from Ingo Molnar:
 "Kernel side changes:

   - Clean up the x86 instruction decoder (Masami Hiramatsu)

   - Add new uprobes optimization for PUSH instructions on x86 (Yonghong
     Song)

   - Add MSR_IA32_THERM_STATUS to the MSR events (Stephane Eranian)

   - Fix misc bugs, update documentation, plus various cleanups (Jiri
     Olsa)

  There's a large number of tooling side improvements:

   - Intel-PT/BTS improvements (Adrian Hunter)

   - Numerous 'perf trace' improvements (Arnaldo Carvalho de Melo)

   - Introduce an errno code to string facility (Hendrik Brueckner)

   - Various build system improvements (Jiri Olsa)

   - Add support for CoreSight trace decoding by making the perf tools
     use the external openCSD (Mathieu Poirier, Tor Jeremiassen)

   - Add ARM Statistical Profiling Extensions (SPE) support (Kim
     Phillips)

   - libtraceevent updates (Steven Rostedt)

   - Intel vendor event JSON updates (Andi Kleen)

   - Introduce 'perf report --mmaps' and 'perf report --tasks' to show
     info present in 'perf.data' (Jiri Olsa, Arnaldo Carvalho de Melo)

   - Add infrastructure to record first and last sample time to the
     perf.data file header, so that when processing all samples in a
     'perf record' session, such as when doing build-id processing, or
     when specifically requesting that that info be recorded, use that
     in 'perf report --time', that also got support for percent slices
     in addition to absolute ones.

     I.e. now it is possible to ask for the samples in the 10%-20% time
     slice of a perf.data file (Jin Yao)

   - Allow system wide 'perf stat --per-thread', sorting the result (Jin
     Yao)

     E.g.:

      [root@jouet ~]# perf stat --per-thread --metrics IPC
      ^C
       Performance counter stats for 'system wide':

                  make-22229  23,012,094,032  inst_retired.any   #  0.8 IPC
                   cc1-22419     692,027,497  inst_retired.any   #  0.8 IPC
                   gcc-22418     328,231,855  inst_retired.any   #  0.9 IPC
                   cc1-22509     220,853,647  inst_retired.any   #  0.8 IPC
                   gcc-22486     199,874,810  inst_retired.any   #  1.0 IPC
                    as-22466     177,896,365  inst_retired.any   #  0.9 IPC
                   cc1-22465     150,732,374  inst_retired.any   #  0.8 IPC
                   gcc-22508     112,555,593  inst_retired.any   #  0.9 IPC
                   cc1-22487     108,964,079  inst_retired.any   #  0.7 IPC
       qemu-system-x86-2697       21,330,550  inst_retired.any   #  0.3 IPC
       systemd-journal-551        20,642,951  inst_retired.any   #  0.4 IPC
       docker-containe-17651       9,552,892  inst_retired.any   #  0.5 IPC
       dockerd-current-9809        7,528,586  inst_retired.any   #  0.5 IPC
                  make-22153  12,504,194,380  inst_retired.any   #  0.8 IPC
               python2-22429  12,081,290,954  inst_retired.any   #  0.8 IPC
      <SNIP>
               python2-22429  15,026,328,103  cpu_clk_unhalted.thread
                   cc1-22419     826,660,193  cpu_clk_unhalted.thread
                   gcc-22418     365,321,295  cpu_clk_unhalted.thread
                   cc1-22509     279,169,362  cpu_clk_unhalted.thread
                   gcc-22486     210,156,950  cpu_clk_unhalted.thread
      <SNIP>

           5.638075538 seconds time elapsed

     [root@jouet ~]#

   - Improve shell auto-completion of perf events (Jin Yao)

   - 'perf probe' improvements (Masami Hiramatsu)

   - Improve PMU infrastructure to support amp64's ThunderX2
     implementation defined core events (Ganapatrao Kulkarni)

   - Various annotation related improvements and fixes (Thomas Richter)

   - Clarify usage of 'overwrite' and 'backward' in the evlist/mmap
     code, removing the 'overwrite' parameter from several functions as
     it was always used it as 'false' (Wang Nan)

   - Fix/improve 'perf record' reverse recording support (Wang Nan)

   - Improve command line options documentation (Sihyeon Jang)

   - Optimize sample parsing for ordering events, where we don't need to
     parse all the PERF_SAMPLE_ bits, just the ones leading to the
     timestamp needed to reorder events (Jiri Olsa)

   - Generalize the annotation code to support other source information
     besides objdump/DWARF obtained ones, starting with python scripts,
     that will is slated to be merged soon (Jiri Olsa)

   - ... and a lot more that I failed to list, see the shortlog and
     changelog for details"

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (262 commits)
  perf trace beauty flock: Move to separate object file
  perf evlist: Remove fcntl.h from evlist.h
  perf trace beauty futex: Beautify FUTEX_BITSET_MATCH_ANY
  perf trace: Do not print from time delta for interrupted syscall lines
  perf trace: Add --print-sample
  perf bpf: Remove misplaced __maybe_unused attribute
  MAINTAINERS: Adding entry for CoreSight trace decoding
  perf tools: Add mechanic to synthesise CoreSight trace packets
  perf tools: Add full support for CoreSight trace decoding
  pert tools: Add queue management functionality
  perf tools: Add functionality to communicate with the openCSD decoder
  perf tools: Add support for decoding CoreSight trace data
  perf tools: Add decoder mechanic to support dumping trace data
  perf tools: Add processing of coresight metadata
  perf tools: Add initial entry point for decoder CoreSight traces
  perf tools: Integrating the CoreSight decoding library
  perf vendor events intel: Update IvyTown files to V20
  perf vendor events intel: Update IvyBridge files to V20
  perf vendor events intel: Update BroadwellDE events to V7
  perf vendor events intel: Update SkylakeX events to V1.06
  ...

3 files changed, 33 insertions, 26 deletions

diff --git a/arch/x86/tools/Makefile b/arch/x86/tools/Makefile
index 972b8e8d939c..09af7ff53044 100644
--- a/arch/x86/tools/Makefile
+++ b/arch/x86/tools/Makefile
@@ -13,28 +13,28 @@ else
   posttest_64bit = -n
 endif
 
-distill_awk = $(srctree)/arch/x86/tools/distill.awk
+reformatter = $(srctree)/arch/x86/tools/objdump_reformat.awk
 chkobjdump = $(srctree)/arch/x86/tools/chkobjdump.awk
 
 quiet_cmd_posttest = TEST    $@
-      cmd_posttest = ($(OBJDUMP) -v | $(AWK) -f $(chkobjdump)) || $(OBJDUMP) -d -j .text $(objtree)/vmlinux | $(AWK) -f $(distill_awk) | $(obj)/test_get_len $(posttest_64bit) $(posttest_verbose)
+      cmd_posttest = ($(OBJDUMP) -v | $(AWK) -f $(chkobjdump)) || $(OBJDUMP) -d -j .text $(objtree)/vmlinux | $(AWK) -f $(reformatter) | $(obj)/insn_decoder_test $(posttest_64bit) $(posttest_verbose)
 
 quiet_cmd_sanitytest = TEST    $@
       cmd_sanitytest = $(obj)/insn_sanity $(posttest_64bit) -m 1000000
 
-posttest: $(obj)/test_get_len vmlinux $(obj)/insn_sanity
+posttest: $(obj)/insn_decoder_test vmlinux $(obj)/insn_sanity
 	$(call cmd,posttest)
 	$(call cmd,sanitytest)
 
-hostprogs-y	+= test_get_len insn_sanity
+hostprogs-y	+= insn_decoder_test insn_sanity
 
 # -I needed for generated C source and C source which in the kernel tree.
-HOSTCFLAGS_test_get_len.o := -Wall -I$(objtree)/arch/x86/lib/ -I$(srctree)/arch/x86/include/uapi/ -I$(srctree)/arch/x86/include/ -I$(srctree)/arch/x86/lib/ -I$(srctree)/include/uapi/
+HOSTCFLAGS_insn_decoder_test.o := -Wall -I$(objtree)/arch/x86/lib/ -I$(srctree)/arch/x86/include/uapi/ -I$(srctree)/arch/x86/include/ -I$(srctree)/arch/x86/lib/ -I$(srctree)/include/uapi/
 
 HOSTCFLAGS_insn_sanity.o := -Wall -I$(objtree)/arch/x86/lib/ -I$(srctree)/arch/x86/include/ -I$(srctree)/arch/x86/lib/ -I$(srctree)/include/
 
 # Dependencies are also needed.
-$(obj)/test_get_len.o: $(srctree)/arch/x86/lib/insn.c $(srctree)/arch/x86/lib/inat.c $(srctree)/arch/x86/include/asm/inat_types.h $(srctree)/arch/x86/include/asm/inat.h $(srctree)/arch/x86/include/asm/insn.h $(objtree)/arch/x86/lib/inat-tables.c
+$(obj)/insn_decoder_test.o: $(srctree)/arch/x86/lib/insn.c $(srctree)/arch/x86/lib/inat.c $(srctree)/arch/x86/include/asm/inat_types.h $(srctree)/arch/x86/include/asm/inat.h $(srctree)/arch/x86/include/asm/insn.h $(objtree)/arch/x86/lib/inat-tables.c
 
 $(obj)/insn_sanity.o: $(srctree)/arch/x86/lib/insn.c $(srctree)/arch/x86/lib/inat.c $(srctree)/arch/x86/include/asm/inat_types.h $(srctree)/arch/x86/include/asm/inat.h $(srctree)/arch/x86/include/asm/insn.h $(objtree)/arch/x86/lib/inat-tables.c
 
diff --git a/arch/x86/tools/test_get_len.c b/arch/x86/tools/insn_decoder_test.c
index ecf31e0358c8..a3b4fd954931 100644
--- a/arch/x86/tools/test_get_len.c
+++ b/arch/x86/tools/insn_decoder_test.c
@@ -9,10 +9,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
  * Copyright (C) IBM Corporation, 2009
  */
 
@@ -21,6 +17,7 @@
 #include <string.h>
 #include <assert.h>
 #include <unistd.h>
+#include <stdarg.h>
 
 #define unlikely(cond) (cond)
 
@@ -33,7 +30,7 @@
  * particular.  See if insn_get_length() and the disassembler agree
  * on the length of each instruction in an elf disassembly.
  *
- * Usage: objdump -d a.out | awk -f distill.awk | ./test_get_len
+ * Usage: objdump -d a.out | awk -f objdump_reformat.awk | ./insn_decoder_test
  */
 
 const char *prog;
@@ -42,8 +39,8 @@ static int x86_64;
 
 static void usage(void)
 {
-	fprintf(stderr, "Usage: objdump -d a.out | awk -f distill.awk |"
-		" %s [-y|-n] [-v]\n", prog);
+	fprintf(stderr, "Usage: objdump -d a.out | awk -f objdump_reformat.awk"
+		" | %s [-y|-n] [-v]\n", prog);
 	fprintf(stderr, "\t-y	64bit mode\n");
 	fprintf(stderr, "\t-n	32bit mode\n");
 	fprintf(stderr, "\t-v	verbose mode\n");
@@ -52,10 +49,21 @@ static void usage(void)
 
 static void malformed_line(const char *line, int line_nr)
 {
-	fprintf(stderr, "%s: malformed line %d:\n%s", prog, line_nr, line);
+	fprintf(stderr, "%s: error: malformed line %d:\n%s",
+		prog, line_nr, line);
 	exit(3);
 }
 
+static void pr_warn(const char *fmt, ...)
+{
+	va_list ap;
+
+	fprintf(stderr, "%s: warning: ", prog);
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+}
+
 static void dump_field(FILE *fp, const char *name, const char *indent,
 		       struct insn_field *field)
 {
@@ -153,21 +161,20 @@ int main(int argc, char **argv)
 		insn_get_length(&insn);
 		if (insn.length != nb) {
 			warnings++;
-			fprintf(stderr, "Warning: %s found difference at %s\n",
-				prog, sym);
-			fprintf(stderr, "Warning: %s", line);
-			fprintf(stderr, "Warning: objdump says %d bytes, but "
-				"insn_get_length() says %d\n", nb,
-				insn.length);
+			pr_warn("Found an x86 instruction decoder bug, "
+				"please report this.\n", sym);
+			pr_warn("%s", line);
+			pr_warn("objdump says %d bytes, but insn_get_length() "
+				"says %d\n", nb, insn.length);
 			if (verbose)
 				dump_insn(stderr, &insn);
 		}
 	}
 	if (warnings)
-		fprintf(stderr, "Warning: decoded and checked %d"
-			" instructions with %d warnings\n", insns, warnings);
+		pr_warn("Decoded and checked %d instructions with %d "
+			"failures\n", insns, warnings);
 	else
-		fprintf(stdout, "Success: decoded and checked %d"
-			" instructions\n", insns);
+		fprintf(stdout, "%s: success: Decoded and checked %d"
+			" instructions\n", prog, insns);
 	return 0;
 }
diff --git a/arch/x86/tools/distill.awk b/arch/x86/tools/objdump_reformat.awk
index e0edeccc1429..f418c91b71f0 100644
--- a/arch/x86/tools/distill.awk
+++ b/arch/x86/tools/objdump_reformat.awk
@@ -1,7 +1,7 @@
 #!/bin/awk -f
 # SPDX-License-Identifier: GPL-2.0
-# Usage: objdump -d a.out | awk -f distill.awk | ./test_get_len
-# Distills the disassembly as follows:
+# Usage: objdump -d a.out | awk -f objdump_reformat.awk | ./insn_decoder_test
+# Reformats the disassembly as follows:
 # - Removes all lines except the disassembled instructions.
 # - For instructions that exceed 1 line (7 bytes), crams all the hex bytes
 # into a single line.