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48 lines
2.1 KiB

commit 657c084cd6f69d6cc880c2ae65129a0723d053c5
Author: Andreas Schwab <schwab@suse.de>
Date: Mon Dec 5 12:06:46 2016 +0100
Get rid of __elision_available
Index: glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/x86/elision-conf.c
===================================================================
--- glibc-2.17-c758a686.orig/nptl/sysdeps/unix/sysv/linux/x86/elision-conf.c
+++ glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/x86/elision-conf.c
@@ -52,11 +52,6 @@ int __rwlock_rtm_enabled attribute_hidde
int __rwlock_rtm_read_retries attribute_hidden = 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
@@ -71,10 +66,10 @@ elision_init (int argc __attribute__ ((u
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;
- __rwlock_rtm_enabled = __libc_enable_secure ? 0 : __elision_available;
+ __pthread_force_elision = __libc_enable_secure ? 0 : elision_available;
+ __rwlock_rtm_enabled = __libc_enable_secure ? 0 : elision_available;
#endif
}
Index: glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/x86/elision-conf.h
===================================================================
--- glibc-2.17-c758a686.orig/nptl/sysdeps/unix/sysv/linux/x86/elision-conf.h
+++ glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/x86/elision-conf.h
@@ -35,7 +35,6 @@ struct elision_config
extern struct elision_config __elision_aconf attribute_hidden;
extern int __rwlock_rtm_enabled 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. */