diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/kernel-features.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/kernel-features.h | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h index 555b82cf05..db6af35c31 100644 --- a/sysdeps/unix/sysv/linux/kernel-features.h +++ b/sysdeps/unix/sysv/linux/kernel-features.h @@ -106,9 +106,12 @@ # define __ASSUME_ATFCTS 1 #endif -/* Support for inter-process robust mutexes was added in 2.6.17. */ +/* Support for inter-process robust mutexes was added in 2.6.17 (but + some architectures lack futex_atomic_cmpxchg_inatomic in some + configurations). */ #if __LINUX_KERNEL_VERSION >= 0x020611 \ - && (!defined __sh__ || __LINUX_KERNEL_VERSION >= 0x020613) + && (!defined __sh__ || __LINUX_KERNEL_VERSION >= 0x020613) \ + && !(defined __sparc__ && !defined __arch64__ && !defined __sparc_v9__) # define __ASSUME_SET_ROBUST_LIST 1 #endif @@ -119,8 +122,10 @@ # define __ASSUME_COMPLETE_READV_WRITEV 1 #endif -/* Support for PI futexes was added in 2.6.18. */ -#if __LINUX_KERNEL_VERSION >= 0x020612 +/* Support for PI futexes was added in 2.6.18 (but some architectures + lack futex_atomic_cmpxchg_inatomic in some configurations). */ +#if __LINUX_KERNEL_VERSION >= 0x020612 \ + && !(defined __sparc__ && !defined __arch64__ && !defined __sparc_v9__) # define __ASSUME_FUTEX_LOCK_PI 1 #endif @@ -223,8 +228,11 @@ # define __ASSUME_PWRITEV 1 #endif -/* Support for FUTEX_*_REQUEUE_PI was added in 2.6.31. */ -#if __LINUX_KERNEL_VERSION >= 0x02061f +/* Support for FUTEX_*_REQUEUE_PI was added in 2.6.31 (but some + architectures lack futex_atomic_cmpxchg_inatomic in some + configurations). */ +#if __LINUX_KERNEL_VERSION >= 0x02061f \ + && !(defined __sparc__ && !defined __arch64__ && !defined __sparc_v9__) # define __ASSUME_REQUEUE_PI 1 #endif |