about summary refs log tree commit diff
path: root/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S
diff options
context:
space:
mode:
authorRoland McGrath <roland@hack.frob.com>2014-05-14 12:33:43 -0700
committerRoland McGrath <roland@hack.frob.com>2014-05-14 12:33:43 -0700
commitc96067bce58414214474bb5b42be86ffbf525670 (patch)
treef9513abfd26395bc43c7c62a17256f05230a3ae9 /nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S
parentec136444ca77f7a64e2c3616fc560b6410a767d2 (diff)
downloadglibc-c96067bce58414214474bb5b42be86ffbf525670.tar.gz
glibc-c96067bce58414214474bb5b42be86ffbf525670.tar.xz
glibc-c96067bce58414214474bb5b42be86ffbf525670.zip
Move remaining nptl/sysdeps/unix/sysv/linux/x86_64/ files.
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S')
-rw-r--r--nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S164
1 files changed, 0 insertions, 164 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S
deleted file mode 100644
index 53d65b6f12..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S
+++ /dev/null
@@ -1,164 +0,0 @@
-/* Copyright (C) 2002-2014 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <sysdep.h>
-#include <shlib-compat.h>
-#include <lowlevellock.h>
-#include <lowlevelcond.h>
-#include <pthread-pi-defines.h>
-#include <kernel-features.h>
-#include <pthread-errnos.h>
-#include <stap-probe.h>
-
-
-	.text
-
-	/* int pthread_cond_signal (pthread_cond_t *cond) */
-	.globl	__pthread_cond_signal
-	.type	__pthread_cond_signal, @function
-	.align	16
-__pthread_cond_signal:
-
-	LIBC_PROBE (cond_signal, 1, %rdi)
-
-	/* Get internal lock.  */
-	movq	%rdi, %r8
-	movl	$1, %esi
-	xorl	%eax, %eax
-	LOCK
-#if cond_lock == 0
-	cmpxchgl %esi, (%rdi)
-#else
-	cmpxchgl %esi, cond_lock(%rdi)
-#endif
-	jnz	1f
-
-2:	addq	$cond_futex, %rdi
-	movq	total_seq(%r8), %rcx
-	cmpq	wakeup_seq(%r8), %rcx
-	jbe	4f
-
-	/* Bump the wakeup number.  */
-	addq	$1, wakeup_seq(%r8)
-	addl	$1, (%rdi)
-
-	/* Wake up one thread.  */
-	LP_OP(cmp) $-1, dep_mutex(%r8)
-	movl	$FUTEX_WAKE_OP, %esi
-	movl	$1, %edx
-	movl	$SYS_futex, %eax
-	je	8f
-
-	/* Get the address of the mutex used.  */
-	mov     dep_mutex(%r8), %RCX_LP
-	movl	MUTEX_KIND(%rcx), %r11d
-	andl	$(ROBUST_BIT|PI_BIT), %r11d
-	cmpl	$PI_BIT, %r11d
-	je	9f
-
-#ifdef __ASSUME_PRIVATE_FUTEX
-	movl	$(FUTEX_WAKE_OP|FUTEX_PRIVATE_FLAG), %esi
-#else
-	orl	%fs:PRIVATE_FUTEX, %esi
-#endif
-
-8:	movl	$1, %r10d
-#if cond_lock != 0
-	addq	$cond_lock, %r8
-#endif
-	movl	$FUTEX_OP_CLEAR_WAKE_IF_GT_ONE, %r9d
-	syscall
-#if cond_lock != 0
-	subq	$cond_lock, %r8
-#endif
-	/* For any kind of error, we try again with WAKE.
-	   The general test also covers running on old kernels.  */
-	cmpq	$-4095, %rax
-	jae	7f
-
-	xorl	%eax, %eax
-	retq
-
-	/* Wake up one thread and requeue none in the PI Mutex case.  */
-9:	movl	$(FUTEX_CMP_REQUEUE_PI|FUTEX_PRIVATE_FLAG), %esi
-	movq	%rcx, %r8
-	xorq	%r10, %r10
-	movl	(%rdi), %r9d	// XXX Can this be right?
-	syscall
-
-	leaq	-cond_futex(%rdi), %r8
-
-	/* For any kind of error, we try again with WAKE.
-	   The general test also covers running on old kernels.  */
-	cmpq	$-4095, %rax
-	jb	4f
-
-7:
-#ifdef __ASSUME_PRIVATE_FUTEX
-	andl	$FUTEX_PRIVATE_FLAG, %esi
-#else
-	andl	%fs:PRIVATE_FUTEX, %esi
-#endif
-	orl	$FUTEX_WAKE, %esi
-	movl	$SYS_futex, %eax
-	/* %rdx should be 1 already from $FUTEX_WAKE_OP syscall.
-	movl	$1, %edx  */
-	syscall
-
-	/* Unlock.  */
-4:	LOCK
-#if cond_lock == 0
-	decl	(%r8)
-#else
-	decl	cond_lock(%r8)
-#endif
-	jne	5f
-
-6:	xorl	%eax, %eax
-	retq
-
-	/* Initial locking failed.  */
-1:
-#if cond_lock != 0
-	addq	$cond_lock, %rdi
-#endif
-	LP_OP(cmp) $-1, dep_mutex-cond_lock(%rdi)
-	movl	$LLL_PRIVATE, %eax
-	movl	$LLL_SHARED, %esi
-	cmovne	%eax, %esi
-	callq	__lll_lock_wait
-#if cond_lock != 0
-	subq	$cond_lock, %rdi
-#endif
-	jmp	2b
-
-	/* Unlock in loop requires wakeup.  */
-5:
-	movq	%r8, %rdi
-#if cond_lock != 0
-	addq	$cond_lock, %rdi
-#endif
-	LP_OP(cmp) $-1, dep_mutex-cond_lock(%rdi)
-	movl	$LLL_PRIVATE, %eax
-	movl	$LLL_SHARED, %esi
-	cmovne	%eax, %esi
-	callq	__lll_unlock_wake
-	jmp	6b
-	.size	__pthread_cond_signal, .-__pthread_cond_signal
-versioned_symbol (libpthread, __pthread_cond_signal, pthread_cond_signal,
-		  GLIBC_2_3_2)