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authorAndreas Schwab <schwab@suse.de>2016-12-05 12:06:46 +0100
committerAndreas Schwab <schwab@suse.de>2016-12-07 09:35:07 +0100
commit657c084cd6f69d6cc880c2ae65129a0723d053c5 (patch)
tree230d16f0d2e4ed4df4231135b1e0935cd7593b03 /sysdeps/unix/sysv/linux/x86
parent1dae0a14439a2d530402e9770359648c7eb3a784 (diff)
Get rid of __elision_available
Diffstat (limited to 'sysdeps/unix/sysv/linux/x86')
-rw-r--r--sysdeps/unix/sysv/linux/x86/elision-conf.c11
-rw-r--r--sysdeps/unix/sysv/linux/x86/elision-conf.h1
2 files changed, 3 insertions, 9 deletions
diff --git a/sysdeps/unix/sysv/linux/x86/elision-conf.c b/sysdeps/unix/sysv/linux/x86/elision-conf.c
index 0d98133804..c8e77a64ee 100644
--- a/sysdeps/unix/sysv/linux/x86/elision-conf.c
+++ b/sysdeps/unix/sysv/linux/x86/elision-conf.c
@@ -43,11 +43,6 @@ struct elision_config __elision_aconf =
.skip_trylock_internal_abort = 3,
};
-/* Set when the CPU supports elision. When false elision is never attempted.
- */
-
-int __elision_available attribute_hidden;
-
/* Force elision for all new locks. This is used to decide whether existing
DEFAULT locks should be automatically upgraded to elision in
pthread_mutex_lock(). Disabled for suid programs. Only used when elision
@@ -62,11 +57,11 @@ elision_init (int argc __attribute__ ((unused)),
char **argv __attribute__ ((unused)),
char **environ)
{
- __elision_available = HAS_CPU_FEATURE (RTM);
+ int elision_available = HAS_CPU_FEATURE (RTM);
#ifdef ENABLE_LOCK_ELISION
- __pthread_force_elision = __libc_enable_secure ? 0 : __elision_available;
+ __pthread_force_elision = __libc_enable_secure ? 0 : elision_available;
#endif
- if (!HAS_CPU_FEATURE (RTM))
+ if (!elision_available)
__elision_aconf.retry_try_xbegin = 0; /* Disable elision on rwlocks */
}
diff --git a/sysdeps/unix/sysv/linux/x86/elision-conf.h b/sysdeps/unix/sysv/linux/x86/elision-conf.h
index 6c479b31e7..39bf5d9dd7 100644
--- a/sysdeps/unix/sysv/linux/x86/elision-conf.h
+++ b/sysdeps/unix/sysv/linux/x86/elision-conf.h
@@ -33,7 +33,6 @@ struct elision_config
extern struct elision_config __elision_aconf attribute_hidden;
-extern int __elision_available attribute_hidden;
extern int __pthread_force_elision attribute_hidden;
/* Tell the test suite to test elision for this architecture. */