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
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
/*
* Copyright (c) 2002,2003 Hewlett-Packard Company
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef _KERNEL
#include <stdlib.h>
#else
#define free(p) /* nullified */
#define malloc(sz) NULL
#endif
#include "uwx_env.h"
#include "uwx_scoreboard.h"
#include "uwx_str.h"
#include "uwx_trace.h"
alloc_cb uwx_allocate_cb = 0;
free_cb uwx_free_cb = 0;
int uwx_register_alloc_cb(alloc_cb alloc, free_cb free)
{
uwx_allocate_cb = alloc;
uwx_free_cb = free;
return UWX_OK;
}
int uwx_init_history(struct uwx_env *env)
{
int i;
if (env == 0)
return UWX_ERR_NOENV;
for (i = 0; i < NSPECIALREG; i++)
env->history.special[i] = UWX_DISP_REG(i);;
for (i = 0; i < NPRESERVEDGR; i++)
env->history.gr[i] = UWX_DISP_REG(UWX_REG_GR(4+i));
for (i = 0; i < NPRESERVEDBR; i++)
env->history.br[i] = UWX_DISP_REG(UWX_REG_BR(1+i));
for (i = 0; i < 4; i++)
env->history.fr[i] = UWX_DISP_REG(UWX_REG_FR(2+i));
for ( ; i < NPRESERVEDFR; i++)
env->history.fr[i] = UWX_DISP_REG(UWX_REG_FR(12+i));
return UWX_OK;
}
struct uwx_env *uwx_init()
{
int i;
struct uwx_env *env;
if (uwx_allocate_cb == 0)
env = (struct uwx_env *) malloc(sizeof(struct uwx_env));
else
env = (struct uwx_env *) (*uwx_allocate_cb)(sizeof(struct uwx_env));
if (env != 0) {
env->context.valid_regs = 0;
env->context.valid_frs = 0;
for (i = 0; i < NSPECIALREG; i++)
env->context.special[i] = 0;
for (i = 0; i < NPRESERVEDGR; i++)
env->context.gr[i] = 0;
for (i = 0; i < NPRESERVEDBR; i++)
env->context.br[i] = 0;
for (i = 0; i < NPRESERVEDFR; i++) {
env->context.fr[i].part0 = 0;
env->context.fr[i].part1 = 0;
}
env->rstate = 0;
env->function_offset = 0;
(void)uwx_init_history(env);
env->allocate_cb = uwx_allocate_cb;
env->free_cb = uwx_free_cb;
env->free_scoreboards = 0;
env->used_scoreboards = 0;
env->labeled_scoreboards = 0;
(void)uwx_init_str_pool(env);
env->module_name = 0;
env->function_name = 0;
env->cb_token = 0;
env->copyin = 0;
env->lookupip = 0;
env->remote = 0;
env->byte_swap = 0;
env->abi_context = 0;
env->nsbreg = NSBREG_NOFR;
env->nscoreboards = 0;
env->trace = 0;
TRACE_INIT
for (i = 0; i < NSCOREBOARDS; i++)
(void) uwx_alloc_scoreboard(env);
}
return env;
}
int uwx_set_remote(struct uwx_env *env, int is_big_endian_target)
{
int is_big_endian_host;
char *p;
if (env == 0)
return UWX_ERR_NOENV;
env->remote = 1;
is_big_endian_host = 1;
p = (char *)&is_big_endian_host;
*p = 0;
if (is_big_endian_target == is_big_endian_host)
env->byte_swap = 0;
else
env->byte_swap = 1;
return UWX_OK;
}
int uwx_register_callbacks(
struct uwx_env *env,
intptr_t tok,
copyin_cb copyin,
lookupip_cb lookupip)
{
if (env == 0)
return UWX_ERR_NOENV;
env->cb_token = tok;
env->copyin = copyin;
env->lookupip = lookupip;
return UWX_OK;
}
int uwx_get_abi_context_code(struct uwx_env *env)
{
if (env == 0)
return UWX_ERR_NOENV;
return env->abi_context;
}
int uwx_free(struct uwx_env *env)
{
if (env != 0) {
uwx_free_scoreboards(env);
uwx_free_str_pool(env);
if (env->free_cb == 0)
free((void *)env);
else
(*env->free_cb)((void *)env);
}
return UWX_OK;
}
|
