1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
/**************************************************************************
* arch/x86/src/qemu/qemu_fullcontextrestore.S
*
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
**************************************************************************/
/**************************************************************************
* Conditional Compilation Options
**************************************************************************/
/**************************************************************************
* Included Files
**************************************************************************/
#include <nuttx/config.h>
#include <arch/irq.h>
#include "up_internal.h"
/**************************************************************************
* Private Definitions
**************************************************************************/
#ifdef __CYGWIN__
# define SYMBOL(s) _##s
#else
# define SYMBOL(s) s
#endif
/**************************************************************************
* Private Types
**************************************************************************/
/**************************************************************************
* Private Function Prototypes
**************************************************************************/
/**************************************************************************
* Global Variables
**************************************************************************/
/**************************************************************************
* Private Variables
**************************************************************************/
/**************************************************************************
* Private Functions
**************************************************************************/
/**************************************************************************
* Public Functions
**************************************************************************/
/**************************************************************************
* Name: up_fullcontextrestore
*
* Full C prototype:
* void up_fullcontextrestore(uint32_t *regs) __attribute__ ((noreturn));
*
**************************************************************************/
#ifdef CONFIG_X86_NASM
# warning "No Nasm support"
#else
.text
.globl SYMBOL(up_fullcontextrestore)
#ifndef __CYGWIN__
.type SYMBOL(up_fullcontextrestore), @function
#endif
SYMBOL(up_fullcontextrestore):
movl 4(%esp), %ecx /* U_pthread_jmpbuf in %ecx. */
movl 8(%esp), %eax /* Second argument is return value. */
/* Save the return address now. */
movl (REG_PC)(%ecx), %edx
/* Restore registers. */
movl (REG_EBX)(%ecx), %ebx
movl (REG_ESI)(%ecx), %esi
movl (REG_EDI)(%ecx), %edi
movl (REG_EBP)(%ecx), %ebp
movl (REG_SP)(%ecx), %esp
/* Jump to saved PC. */
jmp *%edx
#ifndef __CYGWIN__
.size SYMBOL(up_fullcontextrestore), . - SYMBOL(up_fullcontextrestore)
#endif
.end
#endif /* CONFIG_X86_NASM */
|
