Update.

2003-03-12 Ulrich Drepper <drepper@redhat.com> * sysdeps/x86_64/tls.h [__ASSEMBLER__]: Include tcb-offsets.h. * sysdeps/x86_64/tcb-offsets.sym: New file. * sysdeps/x86_64/Makefile: New file. * sysdeps/i386/tcb-offsets.sym: Add SELF. * sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S: Use SELF to access own pthread_t in TCB. * sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S: New file. * sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S: New file. * sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h (pthread_cond_t): Add padding.
2024-09-21 00:50:04 +00:00 · 2003-03-12 20:03:07 +00:00 · 2003-03-12 20:03:07 +00:00 · d0369fb8a9
commit d0369fb8a9
parent 6aebe7340d
13 changed files with 466 additions and 9 deletions
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@ -1,3 +1,18 @@
+2003-03-12  Ulrich Drepper  <drepper@redhat.com>
+
+	* sysdeps/x86_64/tls.h [__ASSEMBLER__]: Include tcb-offsets.h.
+	* sysdeps/x86_64/tcb-offsets.sym: New file.
+	* sysdeps/x86_64/Makefile: New file.
+
+	* sysdeps/i386/tcb-offsets.sym: Add SELF.
+	* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S: Use SELF
+	to access own pthread_t in TCB.
+	* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S:
+	Likewise.
+	* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S:
+	Likewise.
+	* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S: Likewise.
+
 2003-03-12  Roland McGrath  <roland@redhat.com>

 	* pthread-errnos.sym: New file.
@ -45,6 +60,14 @@

 2003-03-12  Ulrich Drepper  <drepper@redhat.com>

+	* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S: New
+	file.
+	* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S: New
+	file.
+
+	* sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h
+	(pthread_cond_t): Add padding.
+
 	* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S: New file.
 	* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S: New file.
 	* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_unlock.S: New file.
--- a/nptl/sysdeps/i386/tcb-offsets.sym
+++ b/nptl/sysdeps/i386/tcb-offsets.sym
@ -1,6 +1,7 @@
 #include <sysdep.h>
 #include <tls.h>

+SELF			offsetof (tcbhead_t, self)
 MULTIPLE_THREADS_OFFSET	offsetof (tcbhead_t, multiple_threads)
 SYSINFO_OFFSET		offsetof (tcbhead_t, sysinfo)
 CLEANUP			offsetof (struct pthread, cleanup)
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S
@ -124,7 +124,7 @@ __pthread_rwlock_rdlock:
 	call	__lll_mutex_lock_wait
 	jmp	2b

-14:	cmpl	%gs:8, %eax
+14:	cmpl	%gs:SELF, %eax
 	jne	3b
 	/* Deadlock detected.  */
 	movl	$EDEADLK, %ecx
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S
@ -165,7 +165,7 @@ pthread_rwlock_timedrdlock:
 	call	__lll_mutex_lock_wait
 	jmp	2b

-14:	cmpl	%gs:8, %eax
+14:	cmpl	%gs:SELF, %eax
 	jne	3b
 	movl	$EDEADLK, %ecx
 	jmp	9b
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S
@ -135,7 +135,7 @@ pthread_rwlock_timedwrlock:


 5:	xorl	%ecx, %ecx
-	movl	%gs:8, %eax
+	movl	%gs:SELF, %eax
 	movl	%eax, WRITER(%ebp)
 9:	LOCK
 #if MUTEX == 0
@ -163,7 +163,7 @@ pthread_rwlock_timedwrlock:
 	call	__lll_mutex_lock_wait
 	jmp	2b

-14:	cmpl	%gs:8, %eax
+14:	cmpl	%gs:SELF, %eax
 	jne	3b
 20:	movl	$EDEADLK, %ecx
 	jmp	9b
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S
@ -97,7 +97,7 @@ __pthread_rwlock_wrlock:
 	jmp	2b

 5:	xorl	%ecx, %ecx
-	movl	%gs:8, %eax
+	movl	%gs:SELF, %eax
 	movl	%eax, WRITER(%ebx)
 9:	LOCK
 #if MUTEX == 0
@ -122,7 +122,7 @@ __pthread_rwlock_wrlock:
 	call	__lll_mutex_lock_wait
 	jmp	2b

-14:	cmpl	%gs:8, %eax
+14:	cmpl	%gs:SELF, %eax
 	jne	3b
 	movl	$EDEADLK, %ecx
 	jmp	9b
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S
@ -119,7 +119,7 @@ __pthread_rwlock_rdlock:
 #endif
 	jmp	2b

-14:	cmpq	%gs:16, %rax
+14:	cmpq	%fs:SELF, %rax
 	jne	3b
 	/* Deadlock detected.  */
 	movq	$EDEADLK, %rcx
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S
@ -0,0 +1,206 @@
+/* Copyright (C) 2002, 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+#include <lowlevelrwlock.h>
+#include <pthread-errnos.h>
+
+
+#define SYS_gettimeofday	__NR_gettimeofday
+#define SYS_futex		202
+#define FUTEX_WAIT		0
+#define FUTEX_WAKE		1
+
+#ifndef UP
+# define LOCK lock
+#else
+# define LOCK
+#endif
+
+
+	.text
+
+	.globl	pthread_rwlock_timedrdlock
+	.type	pthread_rwlock_timedrdlock,@function
+	.align	16
+pthread_rwlock_timedrdlock:
+	subq	$16, %rsp
+
+	movq	%rdi, %r8
+	movq	%rsi, %r9
+	xorq	%r10, %r10
+
+	/* Get the lock.  */
+	movl	$1, %esi
+	LOCK
+#if MUTEX == 0
+	xaddl	%esi, (%rdi)
+#else
+	xaddl	%esi, MUTEX(%rdi)
+#endif
+	testl	%esi, %esi
+	jne	1f
+
+2:	movq	WRITER(%r8), %rax
+	testq	%rax, %rax
+	jne	14f
+	cmpl	$0, WRITERS_QUEUED(%r8)
+	je	5f
+	cmpl	$0, FLAGS(%r8)
+	je	5f
+
+	/* Check the value of the timeout parameter.  */
+3:	cmpl	$1000000000, 8(%r9)
+	jae	19f
+
+	incl	READERS_QUEUED(%r8)
+	je	4f
+
+	movl	READERS_WAKEUP(%r8), %edx
+
+	/* Unlock.  */
+	LOCK
+#if MUTEX == 0
+	subl	$1, (%r8)
+#else
+	subl	$1, MUTEX(%r8)
+#endif
+	jne	10f
+
+	/* Get current time.  */
+11:	movq	%rsp, %rdi
+	xorq	%rsi, %rsi
+	movq	$SYS_gettimeofday, %rax
+	syscall
+
+	/* Compute relative timeout.  */
+	movq	8(%rsp), %rax
+	movq	$1000, %rdi
+	mul	%rdi		/* Milli seconds to nano seconds.  */
+	movq	(%r9), %rcx
+	movq	8(%r9), %rdi
+	subq	(%rsp), %rcx
+	subq	%rax, %rdi
+	jns	15f
+	addq	$1000000000, %rdi
+	decq	%rcx
+15:	testq	%rcx, %rcx
+	js	16f		/* Time is already up.  */
+
+	/* Futex call.  */
+	movq	%rcx, (%rsp)	/* Store relative timeout.  */
+	movq	%rdi, 8(%rsp)
+
+	xorq	%rsi, %rsi	/* movq $FUTEX_WAIT, %rsi */
+	leaq	READERS_WAKEUP(%r8), %rdi
+	movq	$SYS_futex, %rax
+	syscall
+	movq	%rax, %rdx
+17:
+
+	/* Reget the lock.  */
+	movl	$1, %esi
+	LOCK
+#if MUTEX == 0
+	xaddl	%esi, (%r8)
+#else
+	xaddl	%esi, MUTEX(%r8)
+#endif
+	testl	%esi, %esi
+	jne	12f
+
+13:	decl	READERS_QUEUED(%r8)
+	cmpq	$-ETIMEDOUT, %rdx
+	jne	2b
+
+18:	movq	$ETIMEDOUT, %rcx
+	jmp	9f
+
+
+5:	xorq	%rcx, %rcx
+	incl	NR_READERS(%r8)
+	je	8f
+9:	LOCK
+#if MUTEX == 0
+	decl	(%r8)
+#else
+	decl	MUTEX(%r8)
+#endif
+	jne	6f
+
+7:	movq	%rcx, %rax
+
+	addq	$16, %rsp
+	retq
+
+1:
+#if MUTEX != 0
+	addq	$MUTEX, %rdi
+#endif
+	callq	__lll_mutex_lock_wait
+	jmp	2b
+
+14:	cmpq	%fs:SELF, %rax
+	jne	3b
+	movq	$EDEADLK, %rcx
+	jmp	9b
+
+6:
+#if MUTEX == 0
+	movq	%r8, %rdi
+#else
+	leal	MUTEX(%r8), %rdi
+#endif
+	callq	__lll_mutex_unlock_wake
+	jmp	7b
+
+	/* Overflow.  */
+8:	decl	NR_READERS(%r8)
+	movq	$EAGAIN, %rcx
+	jmp	9b
+
+	/* Overflow.  */
+4:	decl	READERS_QUEUED(%r8)
+	movq	$EAGAIN, %rcx
+	jmp	9b
+
+10:
+#if MUTEX == 0
+	movq	%r8, %rdi
+#else
+	leaq	MUTEX(%r8), %rdi
+#endif
+	callq	__lll_mutex_unlock_wake
+	jmp	11b
+
+12:
+#if MUTEX == 0
+	movq	%r8, %rdi
+#else
+	leaq	MUTEX(%r8), %rdi
+#endif
+	call	__lll_mutex_lock_wait
+	jmp	13b
+
+16:	movq	$-ETIMEDOUT, %rdx
+	jmp	17b
+
+19:	movq	$EINVAL, %rcx
+	jmp	9b
+	.size	pthread_rwlock_timedrdlock,.-pthread_rwlock_timedrdlock
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S
@ -0,0 +1,198 @@
+/* Copyright (C) 2002, 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+#include <lowlevelrwlock.h>
+#include <pthread-errnos.h>
+
+
+#define SYS_gettimeofday	__NR_gettimeofday
+#define SYS_futex		202
+#define FUTEX_WAIT		0
+#define FUTEX_WAKE		1
+
+#ifndef UP
+# define LOCK lock
+#else
+# define LOCK
+#endif
+
+
+	.text
+
+	.globl	pthread_rwlock_timedwrlock
+	.type	pthread_rwlock_timedwrlock,@function
+	.align	16
+pthread_rwlock_timedwrlock:
+	subq	$16, %rsp
+
+	movq	%rdi, %r8
+	movq	%rsi, %r9
+
+	/* Get the lock.  */
+	movl	$1, %esi
+	LOCK
+#if MUTEX == 0
+	xaddl	%esi, (%rdi)
+#else
+	xaddl	%esi, MUTEX(%rdi)
+#endif
+	testl	%esi, %esi
+	jne	1f
+
+2:	movq	WRITER(%r8), %rax
+	testq	%rax, %rax
+	jne	14f
+	cmpl	$0, NR_READERS(%r8)
+	je	5f
+
+	/* Check the value of the timeout parameter.  */
+3:	cmpq	$1000000000, 8(%r9)
+	jae	19f
+
+	incl	WRITERS_QUEUED(%r8)
+	je	4f
+
+	movl	WRITERS_WAKEUP(%r8), %edx
+
+	LOCK
+#if MUTEX == 0
+	decl	(%r8)
+#else
+	decl	MUTEX(%r8)
+#endif
+	jne	10f
+
+	/* Get current time.  */
+11:	movq	%rsp, %rdi
+	xorq	%rsi, %rsi
+	movq	$SYS_gettimeofday, %rax
+	syscall
+
+	/* Compute relative timeout.  */
+	movq	8(%rsp), %rax
+	movq	$1000, %rdi
+	mul	%rdi		/* Milli seconds to nano seconds.  */
+	movq	(%r9), %rcx
+	movq	8(%r9), %rdi
+	subq	(%rsp), %rcx
+	subq	%rax, %rdi
+	jns	15f
+	addq	$1000000000, %rdi
+	decq	%rcx
+15:	testq	%rcx, %rcx
+	js	16f		/* Time is already up.  */
+
+	/* Futex call.  */
+	movq	%rcx, (%rsp)	/* Store relative timeout.  */
+	movq	%rdi, 8(%rsp)
+
+	xorq	%rsi, %rsi	/* movq $FUTEX_WAIT, %rsi */
+	movq	%rsp, %r10
+	leaq	WRITERS_WAKEUP(%r8), %rdi
+	movq	$SYS_futex, %rax
+	syscall
+	movq	%rax, %rdx
+17:
+
+	/* Reget the lock.  */
+	movl	$1, %esi
+	LOCK
+#if MUTEX == 0
+	xaddl	%esi, (%r8)
+#else
+	xaddl	%esi, MUTEX(%r8)
+#endif
+	testl	%esi, %esi
+	jne	12f
+
+13:	decl	WRITERS_QUEUED(%r8)
+	cmpq	$-ETIMEDOUT, %rdx
+	jne	2b
+
+18:	movq	$ETIMEDOUT, %rcx
+	jmp	9f
+
+
+5:	xorq	%rcx, %rcx
+	movq	%fs:SELF, %rax
+	movq	%rax, WRITER(%r8)
+9:	LOCK
+#if MUTEX == 0
+	decl	(%r8)
+#else
+	decl	MUTEX(%r8)
+#endif
+	jne	6f
+
+7:	movq	%rcx, %rax
+
+	addq	$16, %rsp
+	retq
+
+1:
+#if MUTEX != 0
+	addq	$MUTEX, %rdi
+#endif
+	callq	__lll_mutex_lock_wait
+	jmp	2b
+
+14:	cmpq	%fs:SELF, %rax
+	jne	3b
+20:	movq	$EDEADLK, %rcx
+	jmp	9b
+
+6:
+#if MUTEX == 0
+	movq	%r8, %rdi
+#else
+	leal	MUTEX(%r8), %rdi
+#endif
+	callq	__lll_mutex_unlock_wake
+	jmp	7b
+
+	/* Overflow.  */
+4:	decl	WRITERS_QUEUED(%r8)
+	movq	$EAGAIN, %rcx
+	jmp	9b
+
+10:
+#if MUTEX == 0
+	movq	%r8, %rdi
+#else
+	leaq	MUTEX(%r8), %rdi
+#endif
+	callq	__lll_mutex_unlock_wake
+	jmp	11b
+
+12:
+#if MUTEX == 0
+	movq	%r8, %rdi
+#else
+	leaq	MUTEX(%r8), %rdi
+#endif
+	callq	__lll_mutex_lock_wait
+	jmp	13b
+
+16:	movq	$-ETIMEDOUT, %rdx
+	jmp	17b
+
+19:	movq	$EINVAL, %rcx
+	jmp	9b
+	.size	pthread_rwlock_timedwrlock,.-pthread_rwlock_timedwrlock
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S
@ -93,7 +93,7 @@ __pthread_rwlock_wrlock:
 	jmp	2b

 5:	xorq	%rcx, %rcx
-	movq	%gs:16, %rax
+	movq	%fs:SELF, %rax
 	movq	%rax, WRITER(%rdi)
 9:	LOCK
 #if MUTEX == 0
@ -117,7 +117,7 @@ __pthread_rwlock_wrlock:
 #endif
 	jmp	2b

-14:	cmpq	%gs:16, %rax
+14:	cmpq	%fs:SELF, %rax
 	jne	3b
 	movq	$EDEADLK, %rcx
 	jmp	9b
--- a/nptl/sysdeps/x86_64/Makefile
+++ b/nptl/sysdeps/x86_64/Makefile
@ -0,0 +1,21 @@
+# Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, write to the Free
+# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+# 02111-1307 USA.
+
+ifeq ($(subdir),csu)
+gen-as-const-headers += tcb-offsets.sym
+endif
--- a/nptl/sysdeps/x86_64/tcb-offsets.sym
+++ b/nptl/sysdeps/x86_64/tcb-offsets.sym
@ -0,0 +1,6 @@
+#include <sysdep.h>
+#include <tls.h>
+
+SELF			offsetof (tcbhead_t, self)
+CLEANUP			offsetof (struct pthread, cleanup)
+CLEANUP_PREV		offsetof (struct _pthread_cleanup_buffer, __prev)
--- a/nptl/sysdeps/x86_64/tls.h
+++ b/nptl/sysdeps/x86_64/tls.h
@ -42,6 +42,8 @@ typedef struct
  dtv_t *dtv;
  void *self;		/* Pointer to the thread descriptor.  */
 } tcbhead_t;
+#else /* __ASSEMBLER__ */
+# include <tcb-offsets.h>
 #endif