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authorFrank Ch. Eigler <fche@elastic.org>2009-10-31 13:54:41 -0400
committerFrank Ch. Eigler <fche@elastic.org>2009-10-31 13:58:38 -0400
commit2c279bc4231e44dba80e5fdb10aa1626e412eab3 (patch)
treec931b7a898830dea6684b091e9f2c2c9585d241c /includes/sys/sdt.h
parent5b8642a208b614769f934c6a4ce2991658025a57 (diff)
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reorganize app tests; rewrite tcl as sample of improvements
* testsuite/configure.ac (--enable-testapps): New option. * testsuite/Makefile.am (TESTAPPS): Pass to dejagnu. * testsuite/systemtap.base/{xulrunner,tcl,mysql,postgres}: Moved under new systemtap.apps/ subdirectory. * testsuite/systemtap.apps/stap-tcl.sh: New file to build tcl. * testsuite/systemtap.apps/stap-tcl.stp: New file to test tcl. * testsuite/systemtap.apps/tcl.exp: New simplified test driver. * dtrace.in: Disable STAP_HAS_SEMAPHORES as they don't work on shlibs yet. * includes/sys/sdt.h (STAP_SEMAPHORE): Include __builtin_expect for unlikely.
Diffstat (limited to 'includes/sys/sdt.h')
-rw-r--r--includes/sys/sdt.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/includes/sys/sdt.h b/includes/sys/sdt.h
index d31d7326..3847c497 100644
--- a/includes/sys/sdt.h
+++ b/includes/sys/sdt.h
@@ -42,7 +42,7 @@
#if defined STAP_HAS_SEMAPHORES && defined EXPERIMENTAL_UTRACE_SDT
#define STAP_SEMAPHORE(probe) \
- if ( probe ## _semaphore )
+ if (__builtin_expect ( probe ## _semaphore , 0))
#else
#define STAP_SEMAPHORE(probe)
#endif