nsprpub/pr/src/md/unix/os_SunOS_x86.s@4ab42b5ab56c
nsprpub/pr/src/md/unix/os_SunOS_x86.s
Wed, 31 Dec 2014 07:53:36 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 07:53:36 +0100
- branch
- TOR_BUG_3246
- changeset 5
- 4ab42b5ab56c
- permissions
- -rw-r--r--
Correct small whitespace inconsistency, lost while renaming variables.
1 // -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2 //
3 // This Source Code Form is subject to the terms of the Mozilla Public
4 // License, v. 2.0. If a copy of the MPL was not distributed with this
5 // file, You can obtain one at http://mozilla.org/MPL/2.0/.
7 .text
9 .globl getedi
10 getedi:
11 movl %edi,%eax
12 ret
13 .type getedi,@function
14 .size getedi,.-getedi
16 .globl setedi
17 setedi:
18 movl 4(%esp),%edi
19 ret
20 .type setedi,@function
21 .size setedi,.-setedi
23 .globl __MD_FlushRegisterWindows
24 .globl _MD_FlushRegisterWindows
26 __MD_FlushRegisterWindows:
27 _MD_FlushRegisterWindows:
29 ret
31 //
32 // sol_getsp()
33 //
34 // Return the current sp (for debugging)
35 //
36 .globl sol_getsp
37 sol_getsp:
38 movl %esp, %eax
39 ret
41 //
42 // sol_curthread()
43 //
44 // Return a unique identifier for the currently active thread.
45 //
46 .globl sol_curthread
47 sol_curthread:
48 movl %ecx, %eax
49 ret
51 // PRInt32 _MD_AtomicIncrement(PRInt32 *val)
52 //
53 // Atomically increment the integer pointed to by 'val' and return
54 // the result of the increment.
55 //
56 .text
57 .globl _MD_AtomicIncrement
58 .align 4
59 _MD_AtomicIncrement:
60 movl 4(%esp), %ecx
61 movl $1, %eax
62 lock
63 xaddl %eax, (%ecx)
64 incl %eax
65 ret
67 // PRInt32 _MD_AtomicDecrement(PRInt32 *val)
68 //
69 // Atomically decrement the integer pointed to by 'val' and return
70 // the result of the decrement.
71 //
72 .text
73 .globl _MD_AtomicDecrement
74 .align 4
75 _MD_AtomicDecrement:
76 movl 4(%esp), %ecx
77 movl $-1, %eax
78 lock
79 xaddl %eax, (%ecx)
80 decl %eax
81 ret
83 // PRInt32 _MD_AtomicSet(PRInt32 *val, PRInt32 newval)
84 //
85 // Atomically set the integer pointed to by 'val' to the new
86 // value 'newval' and return the old value.
87 //
88 // An alternative implementation:
89 // .text
90 // .globl _MD_AtomicSet
91 // .align 4
92 //_MD_AtomicSet:
93 // movl 4(%esp), %ecx
94 // movl 8(%esp), %edx
95 // movl (%ecx), %eax
96 //retry:
97 // lock
98 // cmpxchgl %edx, (%ecx)
99 // jne retry
100 // ret
101 //
102 .text
103 .globl _MD_AtomicSet
104 .align 4
105 _MD_AtomicSet:
106 movl 4(%esp), %ecx
107 movl 8(%esp), %eax
108 xchgl %eax, (%ecx)
109 ret
111 // PRInt32 _MD_AtomicAdd(PRInt32 *ptr, PRInt32 val)
112 //
113 // Atomically add 'val' to the integer pointed to by 'ptr'
114 // and return the result of the addition.
115 //
116 .text
117 .globl _MD_AtomicAdd
118 .align 4
119 _MD_AtomicAdd:
120 movl 4(%esp), %ecx
121 movl 8(%esp), %eax
122 movl %eax, %edx
123 lock
124 xaddl %eax, (%ecx)
125 addl %edx, %eax
126 ret
