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authorKlaus Schmidinger <vdr@tvdr.de>2017-06-03 12:43:22 +0200
committerKlaus Schmidinger <vdr@tvdr.de>2017-06-03 12:43:22 +0200
commit2c74a31afed1a3552fb22b522039e67a3d40b188 (patch)
treeaab959a20ff7bb52ef16095812799160570fe577 /HISTORY
parentbae02358a3a0f697bb10fe67bfc6ea183e36679b (diff)
downloadvdr-2c74a31afed1a3552fb22b522039e67a3d40b188.tar.gz
vdr-2c74a31afed1a3552fb22b522039e67a3d40b188.tar.bz2
Added backtrace functions for debugging
Diffstat (limited to 'HISTORY')
-rw-r--r--HISTORY20
1 files changed, 15 insertions, 5 deletions
diff --git a/HISTORY b/HISTORY
index 5b4c1a9d..95098012 100644
--- a/HISTORY
+++ b/HISTORY
@@ -9058,11 +9058,21 @@ Video Disk Recorder Revision History
2017-05-31: Version 2.3.6
-- Added debug output for checking the correct sequence of locking global lists
- (with help and suggestions from Jasmin Jessich). To activate this, define the
- macro DEBUG_LOCKSEQ in thread.c. At the first occurrence of an invalid locking
- sequence, the 20 most recent locks will be printed to stderr, followed by a
- backtrace that led to the call in question.
+- Added backtrace functions for debugging (see cBackTrace in thread.h).
+- Added checking the correct sequence of locking global lists (with help and
+ suggestions from Jasmin Jessich). At the first occurrence of an invalid locking
+ sequence, the 20 most recent locks will be written to the log file, followed by a
+ backtrace that led to the call in question. This code can be activated by defining
+ the macro DEBUG_LOCKSEQ in thread.c (which is on by default).
+ When debugging an actual invalid locking sequence, you can additionally define
+ the macro DEBUG_LOCKCALL in thread.c, which will add information about the caller
+ of each lock. Note that this may cause some stress on the CPU, therefore it is off
+ by default.
+- The file Make.config.template now reacts on DEBUG=1 in the 'make' command line,
+ and disables code optimizations by setting -O0 (thanks to Jasmin Jessich).
+ This can be helpful when backtracing highly optimized code. You may want to
+ 'make distclean' before running 'make' with a modified setting of DEBUG, to make
+ sure all object files are newly compiled.
- Fixed the locking sequence when dumping EPG data.
- Fixed the locking sequence when starting a recording.
- The Makefiles now use the macro $(Q) instead of a plain '@' in front of their