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
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
|
/**********************************************************************
* popt.c
* P-Code Optimizer Main Logic
*
* Copyright (C) 2008-2009 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.
*
**********************************************************************/
/**********************************************************************
* Included Files
**********************************************************************/
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include "keywords.h"
#include "podefs.h"
#include "paslib.h"
#include "pofflib.h"
#include "pinsn.h"
#include "popt.h"
#include "psopt.h"
#include "polocal.h"
#include "pfopt.h"
/**********************************************************************
* Private Function Prototypes
**********************************************************************/
static void readPoffFile (const char *filename);
static void pass1 (void);
static void pass2 (void);
static void pass3 (void);
static void writePoffFile (const char *filename);
/**********************************************************************
* Global Variables
**********************************************************************/
/**********************************************************************
* Private Variables
**********************************************************************/
static poffHandle_t poffHandle; /* Handle to POFF object */
/**********************************************************************
* Global Functions
**********************************************************************/
/***********************************************************************/
int main(int argc, char *argv[], char *envp[])
{
TRACE(stderr, "[main]");
/* Check for existence of filename argument */
if (argc < 2)
{
printf("Filename Required\n");
exit (1);
} /* end if */
/* Read the POFF file into memory */
readPoffFile(argv[1]);
/* Performs pass1 optimization */
pass1();
/* Performs pass2 optimization */
insn_ResetOpCodeRead(poffHandle);
pass2();
/* Create final section offsets and relocation entries */
insn_ResetOpCodeRead(poffHandle);
pass3();
/* Write the POFF file */
writePoffFile(argv[1]);
return 0;
} /* End main */
/**********************************************************************
* Private Functions
**********************************************************************/
/***********************************************************************/
static void readPoffFile(const char *filename)
{
char objname [FNAME_SIZE+1];
FILE *objFile;
uint16_t errcode;
TRACE(stderr, "[readPoffFile]");
/* Open the pass1 POFF object file -- Use .o1 extension */
(void)extension(filename, "o1", objname, 1);
if (!(objFile = fopen(objname, "rb")))
{
printf("Error Opening %s\n", objname);
exit(1);
} /* end if */
/* Get a handle to a POFF input object */
poffHandle = poffCreateHandle();
if (!poffHandle)
{
printf("Could not get POFF handle\n");
exit(1);
} /* end if */
/* Read the POFF file into memory */
errcode = poffReadFile(poffHandle, objFile);
if (errcode != 0)
{
printf("Could not read POFF file, errcode=0x%02x\n", errcode);
exit(1);
}
/* Close the input file */
fclose(objFile);
} /* end pass1 */
/***********************************************************************/
static void pass1(void)
{
poffProgHandle_t poffProgHandle; /* Handle to temporary POFF object */
TRACE(stderr, "[pass1]");
/* Create a handle to a temporary object to store new POFF program
* data.
*/
poffProgHandle = poffCreateProgHandle();
if (!poffProgHandle)
{
printf("Could not get POFF handle\n");
exit(1);
} /* end if */
/* Clean up garbage left from the wasteful string stack logic */
stringStackOptimize(poffHandle, poffProgHandle);
/* Replace the original program data with the new program data */
poffReplaceProgData(poffHandle, poffProgHandle);
/* Release the temporary POFF object */
poffDestroyProgHandle(poffProgHandle);
} /* end pass1 */
/***********************************************************************/
static void pass2(void)
{
poffProgHandle_t poffProgHandle; /* Handle to temporary POFF object */
TRACE(stderr, "[pass2]");
/* Create a handle to a temporary object to store new POFF program
* data.
*/
poffProgHandle = poffCreateProgHandle();
if (!poffProgHandle)
{
printf("Could not get POFF handle\n");
exit(1);
} /* end if */
/* Perform Local Optimizatin Initialization */
localOptimization(poffHandle, poffProgHandle);
/* Replace the original program data with the new program data */
poffReplaceProgData(poffHandle, poffProgHandle);
/* Release the temporary POFF object */
poffDestroyProgHandle(poffProgHandle);
} /* end pass2 */
/***********************************************************************/
static void pass3 (void)
{
poffProgHandle_t poffProgHandle; /* Handle to temporary POFF object */
TRACE(stderr, "[pass3]");
/* Create a handle to a temporary object to store new POFF program
* data.
*/
poffProgHandle = poffCreateProgHandle();
if (!poffProgHandle)
{
printf("Could not get POFF handle\n");
exit(1);
} /* end if */
/* Finalize program section, create relocation and line number
* sections.
*/
optFinalize(poffHandle, poffProgHandle);
/* Release the temporary POFF object */
poffDestroyProgHandle(poffProgHandle);
}
/***********************************************************************/
static void writePoffFile(const char *filename)
{
char optname [FNAME_SIZE+1];
FILE *optFile;
TRACE(stderr, "[writePoffFile]");
/* Open optimized p-code file -- Use .o extension */
(void)extension(filename, "o", optname, 1);
if (!(optFile = fopen(optname, "wb")))
{
printf("Error Opening %s\n", optname);
exit(1);
} /* end if */
/* Then write the new POFF file */
poffWriteFile(poffHandle, optFile);
/* Destroy the POFF object */
poffDestroyHandle(poffHandle);
/* Close the files used on writePoffFile */
(void)fclose(optFile);
} /* end writePoffFile */
/***********************************************************************/
|
