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

Pull perf updates from Thomas Gleixner:
 "A larger set of perf updates.

  Not all of them are strictly fixes, but that's solely the tip
  maintainers fault as they let the timely -rc1 pull request fall
  through the cracks for various reasons including travel. So I'm
  sending this nevertheless because rebasing and distangling fixes and
  updates would be a mess and risky as well. As of tomorrow, a strict
  fixes separation is happening again. Sorry for the slip-up.

  Kernel:

   - Handle RECORD_MMAP vs. RECORD_MMAP2 correctly so different
     consumers of the mmap event get what they requested.

  Tools:

   - A larger set of updates to perf record/report/scripts vs. time
     stamp handling

   - More Python3 fixups

   - A pile of memory leak plumbing

   - perf BPF improvements and fixes

   - Finalize the perf.data directory storage"

[ Note: the kernel part is strictly a fix, the updates are purely to
  tooling       - Linus ]

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (75 commits)
  perf bpf: Show more BPF program info in print_bpf_prog_info()
  perf bpf: Extract logic to create program names from perf_event__synthesize_one_bpf_prog()
  perf tools: Save bpf_prog_info and BTF of new BPF programs
  perf evlist: Introduce side band thread
  perf annotate: Enable annotation of BPF programs
  perf build: Check what binutils's 'disassembler()' signature to use
  perf bpf: Process PERF_BPF_EVENT_PROG_LOAD for annotation
  perf symbols: Introduce DSO_BINARY_TYPE__BPF_PROG_INFO
  perf feature detection: Add -lopcodes to feature-libbfd
  perf top: Add option --no-bpf-event
  perf bpf: Save BTF information as headers to perf.data
  perf bpf: Save BTF in a rbtree in perf_env
  perf bpf: Save bpf_prog_info information as headers to perf.data
  perf bpf: Save bpf_prog_info in a rbtree in perf_env
  perf bpf: Make synthesize_bpf_events() receive perf_session pointer instead of perf_tool
  perf bpf: Synthesize bpf events with bpf_program__get_prog_info_linear()
  bpftool: use bpf_program__get_prog_info_linear() in prog.c:do_dump()
  tools lib bpf: Introduce bpf_program__get_prog_info_linear()
  perf record: Replace option --bpf-event with --no-bpf-event
  perf tests: Fix a memory leak in test__perf_evsel__tp_sched_test()
  ...

1 files changed, 28 insertions, 14 deletions

diff --git a/tools/perf/scripts/python/exported-sql-viewer.py b/tools/perf/scripts/python/exported-sql-viewer.py
index afec9479ca7f..e38518cdcbc3 100755
--- a/tools/perf/scripts/python/exported-sql-viewer.py
+++ b/tools/perf/scripts/python/exported-sql-viewer.py
@@ -88,11 +88,20 @@
 #                                                                              7fab593ea956 48 89 15 3b 13 22 00                            movq  %rdx, 0x22133b(%rip)
 # 8107675243232  2    ls       22011  22011  hardware interrupt     No         7fab593ea956 _dl_start+0x26 (ld-2.19.so) -> ffffffff86a012e0 page_fault ([kernel])
 
+from __future__ import print_function
+
 import sys
 import weakref
 import threading
 import string
-import cPickle
+try:
+	# Python2
+	import cPickle as pickle
+	# size of pickled integer big enough for record size
+	glb_nsz = 8
+except ImportError:
+	import pickle
+	glb_nsz = 16
 import re
 import os
 from PySide.QtCore import *
@@ -102,6 +111,15 @@ from decimal import *
 from ctypes import *
 from multiprocessing import Process, Array, Value, Event
 
+# xrange is range in Python3
+try:
+	xrange
+except NameError:
+	xrange = range
+
+def printerr(*args, **keyword_args):
+	print(*args, file=sys.stderr, **keyword_args)
+
 # Data formatting helpers
 
 def tohex(ip):
@@ -1004,10 +1022,6 @@ class ChildDataItemFinder():
 
 glb_chunk_sz = 10000
 
-# size of pickled integer big enough for record size
-
-glb_nsz = 8
-
 # Background process for SQL data fetcher
 
 class SQLFetcherProcess():
@@ -1066,7 +1080,7 @@ class SQLFetcherProcess():
 				return True
 			if space >= glb_nsz:
 				# Use 0 (or space < glb_nsz) to mean there is no more at the top of the buffer
-				nd = cPickle.dumps(0, cPickle.HIGHEST_PROTOCOL)
+				nd = pickle.dumps(0, pickle.HIGHEST_PROTOCOL)
 				self.buffer[self.local_head : self.local_head + len(nd)] = nd
 			self.local_head = 0
 		if self.local_tail - self.local_head > sz:
@@ -1084,9 +1098,9 @@ class SQLFetcherProcess():
 			self.wait_event.wait()
 
 	def AddToBuffer(self, obj):
-		d = cPickle.dumps(obj, cPickle.HIGHEST_PROTOCOL)
+		d = pickle.dumps(obj, pickle.HIGHEST_PROTOCOL)
 		n = len(d)
-		nd = cPickle.dumps(n, cPickle.HIGHEST_PROTOCOL)
+		nd = pickle.dumps(n, pickle.HIGHEST_PROTOCOL)
 		sz = n + glb_nsz
 		self.WaitForSpace(sz)
 		pos = self.local_head
@@ -1198,12 +1212,12 @@ class SQLFetcher(QObject):
 		pos = self.local_tail
 		if len(self.buffer) - pos < glb_nsz:
 			pos = 0
-		n = cPickle.loads(self.buffer[pos : pos + glb_nsz])
+		n = pickle.loads(self.buffer[pos : pos + glb_nsz])
 		if n == 0:
 			pos = 0
-			n = cPickle.loads(self.buffer[0 : glb_nsz])
+			n = pickle.loads(self.buffer[0 : glb_nsz])
 		pos += glb_nsz
-		obj = cPickle.loads(self.buffer[pos : pos + n])
+		obj = pickle.loads(self.buffer[pos : pos + n])
 		self.local_tail = pos + n
 		return obj
 
@@ -2973,7 +2987,7 @@ class DBRef():
 
 def Main():
 	if (len(sys.argv) < 2):
-		print >> sys.stderr, "Usage is: exported-sql-viewer.py {<database name> | --help-only}"
+		printerr("Usage is: exported-sql-viewer.py {<database name> | --help-only}");
 		raise Exception("Too few arguments")
 
 	dbname = sys.argv[1]
@@ -2986,8 +3000,8 @@ def Main():
 
 	is_sqlite3 = False
 	try:
-		f = open(dbname)
-		if f.read(15) == "SQLite format 3":
+		f = open(dbname, "rb")
+		if f.read(15) == b'SQLite format 3':
 			is_sqlite3 = True
 		f.close()
 	except: