From: Richard Henderson <rth@twiddle.net>
To: libc-ports@sourceware.org
Subject: [COMMITED 2/2] Add FUTEX_*_REQUEUE_PI support for Alpha.
Date: Thu, 21 Feb 2013 01:01:00 -0000 [thread overview]
Message-ID: <1361408440-19708-2-git-send-email-rth@twiddle.net> (raw)
In-Reply-To: <1361408440-19708-1-git-send-email-rth@twiddle.net>
---
ports/ChangeLog.alpha | 10 +++++++++
.../unix/sysv/linux/alpha/nptl/lowlevellock.h | 25 ++++++++++++++++++++++
2 files changed, 35 insertions(+)
diff --git a/ports/ChangeLog.alpha b/ports/ChangeLog.alpha
index 9cd2076..2814559 100644
--- a/ports/ChangeLog.alpha
+++ b/ports/ChangeLog.alpha
@@ -1,3 +1,13 @@
+2013-02-19 Richard Henderson <rth@redhat.com>
+
+ [BZ #14920]
+ * sysdeps/unix/sysv/linux/alpha/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.
+
2013-02-20 Richard Henderson <rth@redhat.com>
* sysdeps/unix/alpha/sysdep.h: Include <errno.h>.
diff --git a/ports/sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h b/ports/sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h
index e50324c..cf6b8bf 100644
--- a/ports/sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h
+++ b/ports/sysdeps/unix/sysv/linux/alpha/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
@@ -143,8 +145,31 @@
INTERNAL_SYSCALL_ERROR_P (__ret, __err); \
})
+/* 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) \
+ ({ \
+ INTERNAL_SYSCALL_DECL (__err); \
+ int __op = FUTEX_WAIT_REQUEUE_PI | clockbit; \
+ \
+ INTERNAL_SYSCALL (futex, __err, 5, (futexp), \
+ __lll_private_flag (__op, private), \
+ (val), (timespec), mutex); \
+ })
+#define lll_futex_cmp_requeue_pi(futexp, nr_wake, nr_move, mutex, val, priv) \
+ ({ \
+ INTERNAL_SYSCALL_DECL (__err); \
+ long int __ret; \
+ \
+ __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp), \
+ __lll_private_flag (FUTEX_CMP_REQUEUE_PI, priv),\
+ (nr_wake), (nr_move), (mutex), (val)); \
+ INTERNAL_SYSCALL_ERROR_P (__ret, __err); \
+ })
static inline int __attribute__((always_inline))
__lll_trylock(int *futex)
--
1.8.1.2
prev parent reply other threads:[~2013-02-21 1:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-21 1:01 [COMMITED 1/2] alpha: Include errno.h in sysdep.h Richard Henderson
2013-02-21 1:01 ` Richard Henderson [this message]
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