2.5-18.1

1 files changed, 79 insertions, 18 deletions

diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
index d5c9345558..394dec8d82 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2006, 2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -43,17 +43,25 @@
 	.hidden	__lll_mutex_lock_wait
 	.align	16
 __lll_mutex_lock_wait:
+	cfi_startproc
 	pushq	%r10
+	cfi_adjust_cfa_offset(8)
 	pushq	%rdx
-
+	cfi_adjust_cfa_offset(8)
+	cfi_offset(%r10, -16)
+	cfi_offset(%rdx, -24)
 	xorq	%r10, %r10	/* No timeout.  */
 	movl	$2, %edx
-	movq	%r10, %rsi	/* movq $FUTEX_WAIT, %rsi */
+#if FUTEX_WAIT == 0
+	xorl	%esi, %esi
+#else
+	movl	$FUTEX_WAIT, %esi
+#endif
 
 	cmpl	%edx, %eax	/* NB:	 %edx == 2 */
 	jne	2f
 
-1:	movq	$SYS_futex, %rax
+1:	movl	$SYS_futex, %eax
 	syscall
 
 2:	movl	%edx, %eax
@@ -63,8 +71,13 @@ __lll_mutex_lock_wait:
 	jnz	1b
 
 	popq	%rdx
+	cfi_adjust_cfa_offset(-8)
+	cfi_restore(%rdx)
 	popq	%r10
+	cfi_adjust_cfa_offset(-8)
+	cfi_restore(%r10)
 	retq
+	cfi_endproc
 	.size	__lll_mutex_lock_wait,.-__lll_mutex_lock_wait
 
 
@@ -74,18 +87,30 @@ __lll_mutex_lock_wait:
 	.hidden	__lll_mutex_timedlock_wait
 	.align	16
 __lll_mutex_timedlock_wait:
+	cfi_startproc
 	/* Check for a valid timeout value.  */
 	cmpq	$1000000000, 8(%rdx)
 	jae	3f
 
 	pushq	%r8
+	cfi_adjust_cfa_offset(8)
 	pushq	%r9
+	cfi_adjust_cfa_offset(8)
 	pushq	%r12
+	cfi_adjust_cfa_offset(8)
 	pushq	%r13
+	cfi_adjust_cfa_offset(8)
 	pushq	%r14
+	cfi_adjust_cfa_offset(8)
+	cfi_offset(%r8, -16)
+	cfi_offset(%r9, -24)
+	cfi_offset(%r12, -32)
+	cfi_offset(%r13, -40)
+	cfi_offset(%r14, -48)
 
 	/* Stack frame for the timespec and timeval structs.  */
 	subq	$16, %rsp
+	cfi_adjust_cfa_offset(16)
 
 	movq	%rdi, %r12
 	movq	%rdx, %r13
@@ -93,7 +118,7 @@ __lll_mutex_timedlock_wait:
 1:
 	/* Get current time.  */
 	movq	%rsp, %rdi
-	xorq	%rsi, %rsi
+	xorl	%esi, %esi
 	movq	$VSYSCALL_ADDR_vgettimeofday, %rax
 	/* This is a regular function call, all caller-save registers
 	   might be clobbered.  */
@@ -101,7 +126,7 @@ __lll_mutex_timedlock_wait:
 
 	/* Compute relative timeout.  */
 	movq	8(%rsp), %rax
-	movq	$1000, %rdi
+	movl	$1000, %edi
 	mul	%rdi		/* Milli seconds to nano seconds.  */
 	movq	(%r13), %rdi
 	movq	8(%r13), %rsi
@@ -126,26 +151,50 @@ __lll_mutex_timedlock_wait:
 	je	8f
 
 	movq	%rsp, %r10
-	xorq	%rsi, %rsi	/* movq $FUTEX_WAIT, %rsi */
+#if FUTEX_WAIT == 0
+	xorl	%esi, %esi
+#else
+	movl	$FUTEX_WAIT, %esi
+#endif
 	movq	%r12, %rdi
-	movq	$SYS_futex, %rax
+	movl	$SYS_futex, %eax
 	syscall
 	movq	%rax, %rcx
 
 8:				/* NB: %edx == 2 */
 	xorl	%eax, %eax
 	LOCK
-	cmpxchgl %edx, (%rdi)
+	cmpxchgl %edx, (%r12)
 	jnz	7f
 
 6:	addq	$16, %rsp
+	cfi_adjust_cfa_offset(-16)
 	popq	%r14
+	cfi_adjust_cfa_offset(-8)
+	cfi_restore(%r14)
 	popq	%r13
+	cfi_adjust_cfa_offset(-8)
+	cfi_restore(%r13)
 	popq	%r12
+	cfi_adjust_cfa_offset(-8)
+	cfi_restore(%r12)
 	popq	%r9
+	cfi_adjust_cfa_offset(-8)
+	cfi_restore(%r9)
 	popq	%r8
+	cfi_adjust_cfa_offset(-8)
+	cfi_restore(%r8)
 	retq
 
+3:	movl	$EINVAL, %eax
+	retq
+
+	cfi_adjust_cfa_offset(56)
+	cfi_offset(%r8, -16)
+	cfi_offset(%r9, -24)
+	cfi_offset(%r12, -32)
+	cfi_offset(%r13, -40)
+	cfi_offset(%r14, -48)
 	/* Check whether the time expired.  */
 7:	cmpq	$-ETIMEDOUT, %rcx
 	je	5f
@@ -157,11 +206,9 @@ __lll_mutex_timedlock_wait:
 	jz	6b
 	jmp	1b
 
-3:	movl	$EINVAL, %eax
-	retq
-
 5:	movl	$ETIMEDOUT, %eax
 	jmp	6b
+	cfi_endproc
 	.size	__lll_mutex_timedlock_wait,.-__lll_mutex_timedlock_wait
 #endif
 
@@ -191,18 +238,28 @@ lll_unlock_wake_cb:
 	.hidden	__lll_mutex_unlock_wake
 	.align	16
 __lll_mutex_unlock_wake:
+	cfi_startproc
 	pushq	%rsi
+	cfi_adjust_cfa_offset(8)
 	pushq	%rdx
+	cfi_adjust_cfa_offset(8)
+	cfi_offset(%rsi, -16)
+	cfi_offset(%rdx, -24)
 
 	movl	$0, (%rdi)
-	movq	$FUTEX_WAKE, %rsi
+	movl	$FUTEX_WAKE, %esi
 	movl	$1, %edx	/* Wake one thread.  */
-	movq	$SYS_futex, %rax
+	movl	$SYS_futex, %eax
 	syscall
 
 	popq	%rdx
+	cfi_adjust_cfa_offset(-8)
+	cfi_restore(%rdx)
 	popq	%rsi
+	cfi_adjust_cfa_offset(-8)
+	cfi_restore(%rsi)
 	retq
+	cfi_endproc
 	.size	__lll_mutex_unlock_wake,.-__lll_mutex_unlock_wake
 
 
@@ -222,13 +279,13 @@ __lll_timedwait_tid:
 
 	/* Get current time.  */
 2:	movq	%rsp, %rdi
-	xorq	%rsi, %rsi
+	xorl	%esi, %esi
 	movq	$VSYSCALL_ADDR_vgettimeofday, %rax
 	callq	*%rax
 
 	/* Compute relative timeout.  */
 	movq	8(%rsp), %rax
-	movq	$1000, %rdi
+	movl	$1000, %edi
 	mul	%rdi		/* Milli seconds to nano seconds.  */
 	movq	(%r13), %rdi
 	movq	8(%r13), %rsi
@@ -248,9 +305,13 @@ __lll_timedwait_tid:
 	jz	4f
 
 	movq	%rsp, %r10
-	xorq	%rsi, %rsi	/* movq $FUTEX_WAIT, %rsi */
+#if FUTEX_WAIT == 0
+	xorl	%esi, %esi
+#else
+	movl	$FUTEX_WAIT, %esi
+#endif
 	movq	%r12, %rdi
-	movq	$SYS_futex, %rax
+	movl	$SYS_futex, %eax
 	syscall
 
 	cmpl	$0, (%rdi)