From: "Joseph S. Myers" <joseph@codesourcery.com>
To: <libc-ports@sourceware.org>
Subject: Re: PI mutex support for pthread_cond_* now in nptl
Date: Tue, 19 Feb 2013 00:50:00 -0000 [thread overview]
Message-ID: <Pine.LNX.4.64.1302190049570.13086@digraph.polyomino.org.uk> (raw)
In-Reply-To: <Pine.LNX.4.64.1302182349470.13086@digraph.polyomino.org.uk>
I've applied this patch with the MIPS implementation.
diff --git a/ports/ChangeLog.mips b/ports/ChangeLog.mips
index de967c6..c07bf97 100644
--- a/ports/ChangeLog.mips
+++ b/ports/ChangeLog.mips
@@ -1,3 +1,13 @@
+2013-02-19 Joseph Myers <joseph@codesourcery.com>
+
+ [BZ #14920]
+ * sysdeps/unix/sysv/linux/mips/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.
+
2013-02-18 Siddhesh Poyarekar <siddhesh@redhat.com>
* sysdeps/unix/sysv/linux/mips/mips32/nptl/libc.abilist: Add
diff --git a/ports/sysdeps/unix/sysv/linux/mips/nptl/lowlevellock.h b/ports/sysdeps/unix/sysv/linux/mips/nptl/lowlevellock.h
index fe7c747..4f27b8b 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/nptl/lowlevellock.h
+++ b/ports/sysdeps/unix/sysv/linux/mips/nptl/lowlevellock.h
@@ -36,6 +36,8 @@
#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
@@ -141,6 +143,34 @@
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); \
+ long int __ret; \
+ int __op = FUTEX_WAIT_REQUEUE_PI | clockbit; \
+ \
+ __ret = INTERNAL_SYSCALL (futex, __err, 5, (futexp), \
+ __lll_private_flag (__op, private), \
+ (val), (timespec), mutex); \
+ INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret; \
+ })
+
+#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)
{
--
Joseph S. Myers
joseph@codesourcery.com
next prev parent reply other threads:[~2013-02-19 0:50 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-18 10:56 Siddhesh Poyarekar
2013-02-18 23:50 ` Joseph S. Myers
2013-02-19 0:50 ` Joseph S. Myers [this message]
2013-02-19 16:42 ` Richard Henderson
2013-02-19 16:49 ` Siddhesh Poyarekar
2013-02-19 17:18 ` Joseph S. Myers
2013-02-19 17:21 ` Siddhesh Poyarekar
2013-02-19 20:06 ` Torvald Riegel
2013-02-20 18:13 ` Steven Munroe
2013-02-20 20:25 ` Torvald Riegel
2013-02-20 22:04 ` Roland McGrath
2013-02-20 22:41 ` Steven Munroe
2013-02-21 4:32 ` Siddhesh Poyarekar
[not found] ` <1361304381.581.80.camel__6928.53579898856$1361304432$gmane$org@triegel.csb>
2013-02-22 4:11 ` Andi Kleen
[not found] ` <5123AB55.2070100__45742.2411222526$1361292204$gmane$org@twiddle.net>
2013-02-19 17:01 ` Andreas Schwab
2013-02-19 17:18 ` Siddhesh Poyarekar
2013-02-19 17:39 ` Andreas Schwab
2013-02-19 17:52 ` Siddhesh Poyarekar
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