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authorAndi Kleen <ak@linux.intel.com>2013-05-16 19:17:14 -0700
committerAndi Kleen <ak@linux.intel.com>2013-07-02 08:46:55 -0700
commit1717da59aed9612becd56aaa1249aac695af4c8a (patch)
tree0b69e8ee62804482fd7bd951c918abdd9d15c0a3 /configure
parent49186d21ef2d87986bccaf0a7c45c48c91b265f3 (diff)
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Add a configure option to enable lock elision and disable by default
Can be enabled with --enable-lock-elision=yes at configure time.
Diffstat (limited to 'configure')
-rwxr-xr-xconfigure16
1 files changed, 16 insertions, 0 deletions
diff --git a/configure b/configure
index edde31032c..a873b20617 100755
--- a/configure
+++ b/configure
@@ -742,6 +742,7 @@ enable_versioning
enable_oldest_abi
enable_hardcoded_path_in_tests
enable_stackguard_randomization
+enable_lock_elision
enable_add_ons
enable_hidden_plt
enable_bind_now
@@ -1399,6 +1400,9 @@ Optional Features:
--enable-stackguard-randomization
initialize __stack_chk_guard canary with a random
number at program start
+ --enable-lock-elision=yes/no
+ Enable lock elision for pthread mutexes and rwlocks
+ by default
--enable-add-ons[=DIRS...]
configure and build add-ons in DIR1,DIR2,... search
for add-ons if no parameter given
@@ -3472,6 +3476,18 @@ if test "$enable_stackguard_randomize" = yes; then
fi
+# Check whether --enable-lock-elision was given.
+if test "${enable_lock_elision+set}" = set; then :
+ enableval=$enable_lock_elision; enable_lock_elision=$enableval
+else
+ enable_lock_elision=no
+fi
+
+if test "$enable_lock_elision" = yes ; then
+ $as_echo "#define ENABLE_LOCK_ELISION 1" >>confdefs.h
+
+fi
+
# Check whether --enable-add-ons was given.
if test "${enable_add_ons+set}" = set; then :
enableval=$enable_add_ons;