Adding upstream version 3.0.4.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

tools/performance-log-resolve.py

@@ -0,0 +1,55 @@
+#!/usr/bin/env python3
+
+"""
+performance-log-resolve.py -- Resolve GIMP performance log backtrace symbols
+Copyright (C) 2018  Ell
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+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, see <https://www.gnu.org/licenses/>.
+
+
+Usage: performance-log-resolve.py < infile > outfile
+"""
+
+from xml.etree import ElementTree
+import sys
+
+empty_element = ElementTree.Element ("")
+
+# Read performance log from STDIN
+log = ElementTree.fromstring (sys.stdin.buffer.read ())
+
+address_map = log.find ("address-map")
+
+if address_map:
+    # Create address dictionary
+    addresses = {}
+
+    for address in address_map.iterfind ("address"):
+        addresses[address.get ("value")] = list (address)
+
+    # Resolve addresses in backtraces
+    for sample in (log.find ("samples") or empty_element).iterfind ("sample"):
+        for thread in sample.find ("backtrace") or ():
+            for frame in thread:
+                address = addresses.get (frame.get ("address"))
+
+                if address:
+                    frame.text = "\n"
+                    frame.extend (address)
+
+    # Remove address map
+    log.remove (address_map)
+
+# Write performance log to STDOUT
+sys.stdout.buffer.write (ElementTree.tostring (log))