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[PATCH/committed] ia64: implement futex requeue pi support
- From: Mike Frysinger <vapier at gentoo dot org>
- To: libc-alpha at sourceware dot org
- Date: Wed, 25 Dec 2013 04:40:58 -0500
- Subject: [PATCH/committed] ia64: implement futex requeue pi support
- Authentication-results: sourceware.org; auth=none
- References: <1387964458-12532-1-git-send-email-vapier at gentoo dot org>
Used the s390 code as a guideline until all tests pass.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
ports/ChangeLog.ia64 | 9 ++++++++
.../unix/sysv/linux/ia64/nptl/lowlevellock.h | 25 ++++++++++++++++++++++
2 files changed, 34 insertions(+)
diff --git a/ports/ChangeLog.ia64 b/ports/ChangeLog.ia64
index c1f2035..34391c1 100644
--- a/ports/ChangeLog.ia64
+++ b/ports/ChangeLog.ia64
@@ -1,6 +1,15 @@
2013-12-25 Mike Frysinger <vapier@gentoo.org>
* sysdeps/unix/sysv/linux/ia64/nptl/lowlevellock.h
+ (FUTEX_WAIT_REQUEUE_PI): Define.
+ (FUTEX_CMP_REQUEUE_PI): Likewise.
+ (lll_futex_wait_requeue_pi): Likewise.
+ (lll_futex_timed_wait_requeue_pi): Likewise.
+ (lll_futex_cmp_requeue_pi): Likewise.
+
+2013-12-25 Mike Frysinger <vapier@gentoo.org>
+
+ * sysdeps/unix/sysv/linux/ia64/nptl/lowlevellock.h
(lll_futex_timed_wait_bitset): Define.
2013-12-24 Mike Frysinger <vapier@gentoo.org>
diff --git a/ports/sysdeps/unix/sysv/linux/ia64/nptl/lowlevellock.h b/ports/sysdeps/unix/sysv/linux/ia64/nptl/lowlevellock.h
index 90d8d81..5518b8a 100644
--- a/ports/sysdeps/unix/sysv/linux/ia64/nptl/lowlevellock.h
+++ b/ports/sysdeps/unix/sysv/linux/ia64/nptl/lowlevellock.h
@@ -38,6 +38,8 @@
#define FUTEX_TRYLOCK_PI 8
#define FUTEX_WAIT_BITSET 9
#define FUTEX_WAKE_BITSET 10
+#define FUTEX_WAIT_REQUEUE_PI 11
+#define FUTEX_CMP_REQUEUE_PI 12
#define FUTEX_PRIVATE_FLAG 128
#define FUTEX_CLOCK_REALTIME 256
@@ -138,6 +140,29 @@ while (0)
_r10 == -1; \
})
+/* Priority Inheritance support. */
+#define lll_futex_wait_requeue_pi(futexp, val, mutex, private) \
+ lll_futex_timed_wait_requeue_pi (futexp, val, NULL, 0, mutex, private)
+
+#define lll_futex_timed_wait_requeue_pi(futexp, val, timespec, clockbit, \
+ mutex, private) \
+({ \
+ int __op = FUTEX_WAIT_REQUEUE_PI | (clockbit); \
+ \
+ DO_INLINE_SYSCALL(futex, 5, (long) (futexp), \
+ __lll_private_flag (__op, private), \
+ (val), (timespec), mutex); \
+ _r10 == -1; \
+})
+
+#define lll_futex_cmp_requeue_pi(futexp, nr_wake, nr_move, mutex, val, priv) \
+({ \
+ DO_INLINE_SYSCALL(futex, 6, (long) (futexp), \
+ __lll_private_flag (FUTEX_CMP_REQUEUE_PI, priv), \
+ (nr_wake), (nr_move), (mutex), (val)); \
+ _r10 == -1 ? -_retval : _retval; \
+})
+
#define __lll_trylock(futex) \
(atomic_compare_and_exchange_val_acq (futex, 1, 0) != 0)
--
1.8.4.3