backtrace speed improved

Author: samsk

ChangeLog

@@ -1,10 +1,10 @@
 
-0.4.0b2 Mon Aug  3 22:14:21 CEST 2015
+0.4.0 Thu Sep 10 08:52:33 CEST 2015
 	- libunwind backtracing performance optimized
 
 0.4.0b Sun Aug  2 22:20:42 CEST 2015
 	- use libunwind for backtrace if available
-	- scripts modified to support decoding of libuwind based backtrace
+	- scripts modified to support decoding of libunwind based backtrace
 
 0.3.0 Sun Nov 23 21:12:54 CET 2014
 	- add manpages

include/log-malloc2.h

@@ -4,7 +4,7 @@
  * log-malloc2
  *	Malloc logging library with backtrace and byte-exact memory tracking.
  * 
- * Author: Samuel Behan <_samuel_._behan_(at)_dob_._sk> (C) 2011-2014
+ * Author: Samuel Behan <_samuel_._behan_(at)_dob_._sk> (C) 2011-2015
  *
  * License: GNU LGPLv3 (http://www.gnu.org/licenses/lgpl.html)
  *

include/log-malloc2_util.h

@@ -4,7 +4,7 @@
  * log-malloc2_util
  *	Helper function, all inlined, no linking required.
  * 
- * Author: Samuel Behan <_samuel_._behan_(at)_dob_._sk> (C) 2011-2014
+ * Author: Samuel Behan <_samuel_._behan_(at)_dob_._sk> (C) 2011-2015
  *
  * License: MIT (http://opensource.org/licenses/MIT) (free to use, modify, relicense...)
  *

scripts/backtrace2line.pl

@@ -3,7 +3,7 @@
 # log-malloc2 / backtrace2line
 #	Translate backtrace() output into functions, file names and line numbers (supports ASLR)
 #
-# Author: Samuel Behan <_samuel_._behan_(at)_dob_._sk> (C) 2013-2014
+# Author: Samuel Behan <_samuel_._behan_(at)_dob_._sk> (C) 2013-2015
 #
 # License: GNU GPLv3 (http://www.gnu.org/licenses/gpl.html)
 #
@@ -303,7 +303,7 @@ ($$$@)
 		{
 			if($WARNING == 0 && !%libs)
 			{
-				warn("WARNING: incomplete SYMBOL (without libname), but no --pid or --maps-file provided!\n");
+				warn("WARNING: incomplete SYMBOL (without libname), but no --pid or --maps-file provided !\n");
 				$WARNING = 1;
 			}
 
@@ -527,23 +527,25 @@ =head1 OPTIONS
 
 =item B<--pid> I<PID>
 
-Pid of a B<still> running process, that generated given backtrace (needed only if ASLR active). Pid
-is esed to get process memory map (from /proc/<pid>/maps).
+Pid of a B<still> running process, that generated given backtrace (needed only if ASLR active or
+if backtrace sumbol contains no library, like when libunwind is used).
+Pid is used to get process memory map (from /proc/<pid>/maps).
 
 =item B<-m> I<MAPS-FILE>
 
 =item B<--maps-file> I<MAPS-FILE>
 
-Path to a file with process memory map of a backtraced process. This is required if if ALSR is
-active. Data from maps file are also used to find full path of the application/libraries from
-symbol(s).
+Path to a file with process memory map of a backtraced process. This is required if ALSR is
+active or if backtrace has been generated by libunwind.
+Data from maps file is used to identify functions location (IP is checked against mapped range)
+or to find full path of the application/libraries from symbol(s).
 
 =item B<-wd> I<WORK-DIR>
 
 =item B<--work-dir> I<WORK-DIR>
 
 Original work or start dir of backtraced process (needed only if backtrace contains relative paths,
-and maps files has not been provided).
+and maps file has not been provided).
 
 =item B<--demangle> I<STYLE>
 

scripts/log-malloc-findleak.pl

@@ -2,7 +2,7 @@
 # log-malloc2 / findleak
 #	Find memory leaks in log-malloc trace file
 #
-# Author: Samuel Behan <_samuel_._behan_(at)_dob_._sk> (C) 2013-2014
+# Author: Samuel Behan <_samuel_._behan_(at)_dob_._sk> (C) 2013-2015
 #
 # License: GNU GPLv3 (http://www.gnu.org/licenses/gpl.html)
 #

scripts/log-malloc-trackusage.pl

@@ -2,7 +2,7 @@
 # log-malloc2 / trackusage
 #	Outputs memory usage
 #
-# Author: Samuel Behan <_samuel_._behan_(at)_dob_._sk> (C) 2013-2014
+# Author: Samuel Behan <_samuel_._behan_(at)_dob_._sk> (C) 2013-2015
 #
 # License: GNU GPLv3 (http://www.gnu.org/licenses/gpl.html)
 #

scripts/log-malloc.pl

@@ -2,7 +2,7 @@
 # log-malloc2
 #	Execute command with log-malloc tracer enabled
 #
-# Author: Samuel Behan <_samuel_._behan_(at)_dob_._sk> (C) 2013-2014
+# Author: Samuel Behan <_samuel_._behan_(at)_dob_._sk> (C) 2013-2015
 #
 # License: GNU GPLv3 (http://www.gnu.org/licenses/gpl.html)
 #

scripts/log-malloc.pm.in

@@ -2,7 +2,7 @@
 # log-malloc2 / config module
 #	Config module
 #
-# Author: Samuel Behan <_samuel_._behan_(at)_dob_._sk> (C) 2013-2014
+# Author: Samuel Behan <_samuel_._behan_(at)_dob_._sk> (C) 2013-2015
 #
 # License: GNU GPLv3 (http://www.gnu.org/licenses/gpl.html)
 #

src/log-malloc2.c

@@ -2,7 +2,7 @@
  * log-malloc2 
  *	Malloc logging library with backtrace and byte-exact memory tracking.
  * 
- * Author: Samuel Behan <_samuel_._behan_(at)_dob_._sk> (C) 2011-2014
+ * Author: Samuel Behan <_samuel_._behan_(at)_dob_._sk> (C) 2011-2015
  *	   partialy based on log-malloc from Ivan Tikhonov
  *
  * License: GNU LGPLv3 (http://www.gnu.org/licenses/lgpl.html)

src/log-malloc2_api.c

@@ -2,7 +2,7 @@
  * log-malloc2 API
  *	Malloc logging library with backtrace and byte-exact memory tracking.
  * 
- * Author: Samuel Behan <_samuel_._behan_(at)_dob_._sk> (C) 2013-2014
+ * Author: Samuel Behan <_samuel_._behan_(at)_dob_._sk> (C) 2013-2015
  *
  * License: GNU LGPLv3 (http://www.gnu.org/licenses/lgpl.html)
  *