1 files changed, 126 insertions, 0 deletions
diff --git a/nsprpub/pr/src/md/unix/os_SunOS_x86.s b/nsprpub/pr/src/md/unix/os_SunOS_x86.s
new file mode 100644
index 0000000000..dcd7535bf6
--- /dev/null
+++ b/nsprpub/pr/src/md/unix/os_SunOS_x86.s
@@ -0,0 +1,126 @@
+// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+// 
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+	.text
+
+	.globl	getedi
+getedi:
+	movl	%edi,%eax
+	ret
+	.type	getedi,@function
+	.size	getedi,.-getedi
+ 
+	.globl	setedi
+setedi:
+	movl	4(%esp),%edi
+	ret
+	.type	setedi,@function
+	.size	setedi,.-setedi
+
+	.globl	__MD_FlushRegisterWindows
+	.globl _MD_FlushRegisterWindows
+
+__MD_FlushRegisterWindows:
+_MD_FlushRegisterWindows:
+
+	ret
+
+//
+// sol_getsp()
+//
+// Return the current sp (for debugging)
+//
+	.globl sol_getsp
+sol_getsp:
+	movl	%esp, %eax
+	ret
+
+//
+// sol_curthread()
+//
+// Return a unique identifier for the currently active thread.
+//
+	.globl sol_curthread
+sol_curthread:
+	movl	%ecx, %eax
+	ret
+
+// PRInt32 _MD_AtomicIncrement(PRInt32 *val)
+//
+// Atomically increment the integer pointed to by 'val' and return
+// the result of the increment.
+//
+    .text
+    .globl _MD_AtomicIncrement
+    .align 4
+_MD_AtomicIncrement:
+    movl 4(%esp), %ecx
+    movl $1, %eax
+    lock
+    xaddl %eax, (%ecx)
+    incl %eax
+    ret
+
+// PRInt32 _MD_AtomicDecrement(PRInt32 *val)
+//
+// Atomically decrement the integer pointed to by 'val' and return
+// the result of the decrement.
+//
+    .text
+    .globl _MD_AtomicDecrement
+    .align 4
+_MD_AtomicDecrement:
+    movl 4(%esp), %ecx
+    movl $-1, %eax
+    lock
+    xaddl %eax, (%ecx)
+    decl %eax
+    ret
+
+// PRInt32 _MD_AtomicSet(PRInt32 *val, PRInt32 newval)
+//
+// Atomically set the integer pointed to by 'val' to the new
+// value 'newval' and return the old value.
+//
+// An alternative implementation:
+//   .text
+//   .globl _MD_AtomicSet
+//   .align 4
+//_MD_AtomicSet:
+//   movl 4(%esp), %ecx
+//   movl 8(%esp), %edx
+//   movl (%ecx), %eax
+//retry:
+//   lock
+//   cmpxchgl %edx, (%ecx)
+//   jne retry
+//   ret
+//
+    .text
+    .globl _MD_AtomicSet
+    .align 4
+_MD_AtomicSet:
+    movl 4(%esp), %ecx
+    movl 8(%esp), %eax
+    xchgl %eax, (%ecx)
+    ret
+
+// PRInt32 _MD_AtomicAdd(PRInt32 *ptr, PRInt32 val)
+//
+// Atomically add 'val' to the integer pointed to by 'ptr'
+// and return the result of the addition.
+//
+    .text
+    .globl _MD_AtomicAdd
+    .align 4
+_MD_AtomicAdd:
+    movl 4(%esp), %ecx
+    movl 8(%esp), %eax
+    movl %eax, %edx
+    lock
+    xaddl %eax, (%ecx)
+    addl %edx, %eax
+    ret