* vax-nat.c: New file.
[deliverable/binutils-gdb.git] / sim / common / sim-config.c
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AC
1/* The common simulator framework for GDB, the GNU Debugger.
2
3 Copyright 2002 Free Software Foundation, Inc.
4
5 Contributed by Andrew Cagney and Red Hat.
6
7 This file is part of GDB.
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
c906108c
SS
23
24
25#include "sim-main.h"
26#include "sim-assert.h"
27#include "bfd.h"
28
29
30int current_host_byte_order;
31int current_target_byte_order;
32int current_stdio;
33
34enum sim_alignments current_alignment;
35
36#if defined (WITH_FLOATING_POINT)
37int current_floating_point;
38#endif
39
40
41
42/* map a byte order onto a textual string */
43
44static const char *
45config_byte_order_to_a (int byte_order)
46{
47 switch (byte_order)
48 {
49 case LITTLE_ENDIAN:
50 return "LITTLE_ENDIAN";
51 case BIG_ENDIAN:
52 return "BIG_ENDIAN";
53 case 0:
54 return "0";
55 }
56 return "UNKNOWN";
57}
58
59
60static const char *
61config_stdio_to_a (int stdio)
62{
63 switch (stdio)
64 {
65 case DONT_USE_STDIO:
66 return "DONT_USE_STDIO";
67 case DO_USE_STDIO:
68 return "DO_USE_STDIO";
69 case 0:
70 return "0";
71 }
72 return "UNKNOWN";
73}
74
75
76static const char *
77config_environment_to_a (enum sim_environment environment)
78{
79 switch (environment)
80 {
81 case ALL_ENVIRONMENT:
82 return "ALL_ENVIRONMENT";
83 case USER_ENVIRONMENT:
84 return "USER_ENVIRONMENT";
85 case VIRTUAL_ENVIRONMENT:
86 return "VIRTUAL_ENVIRONMENT";
87 case OPERATING_ENVIRONMENT:
88 return "OPERATING_ENVIRONMENT";
89 }
90 return "UNKNOWN";
91}
92
93
94static const char *
95config_alignment_to_a (enum sim_alignments alignment)
96{
97 switch (alignment)
98 {
99 case MIXED_ALIGNMENT:
100 return "MIXED_ALIGNMENT";
101 case NONSTRICT_ALIGNMENT:
102 return "NONSTRICT_ALIGNMENT";
103 case STRICT_ALIGNMENT:
104 return "STRICT_ALIGNMENT";
105 case FORCED_ALIGNMENT:
106 return "FORCED_ALIGNMENT";
107 }
108 return "UNKNOWN";
109}
110
111
112#if defined (WITH_FLOATING_POINT)
113static const char *
114config_floating_point_to_a (int floating_point)
115{
116 switch (floating_point)
117 {
118 case SOFT_FLOATING_POINT:
119 return "SOFT_FLOATING_POINT";
120 case HARD_FLOATING_POINT:
121 return "HARD_FLOATING_POINT";
122 case 0:
123 return "0";
124 }
125 return "UNKNOWN";
126}
127#endif
128
129/* Set the default environment, prior to parsing argv. */
130
131void
132sim_config_default (SIM_DESC sd)
133{
134 /* Set the current environment to ALL_ENVIRONMENT to indicate none has been
135 selected yet. This is so that after parsing argv, we know whether the
136 environment was explicitly specified or not. */
137 STATE_ENVIRONMENT (sd) = ALL_ENVIRONMENT;
138}
139
140/* Complete and verify the simulation environment. */
141
142SIM_RC
143sim_config (SIM_DESC sd)
144{
145 int prefered_target_byte_order;
146 SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
147
148 /* extract all relevant information */
149 if (STATE_PROG_BFD (sd) == NULL)
150 prefered_target_byte_order = 0;
151 else
152 prefered_target_byte_order = (bfd_little_endian(STATE_PROG_BFD (sd))
153 ? LITTLE_ENDIAN
154 : BIG_ENDIAN);
155
156 /* set the host byte order */
157 current_host_byte_order = 1;
158 if (*(char*)(&current_host_byte_order))
159 current_host_byte_order = LITTLE_ENDIAN;
160 else
161 current_host_byte_order = BIG_ENDIAN;
162
163 /* verify the host byte order */
164 if (CURRENT_HOST_BYTE_ORDER != current_host_byte_order)
165 {
166 sim_io_eprintf (sd, "host (%s) and configured (%s) byte order in conflict",
167 config_byte_order_to_a (current_host_byte_order),
168 config_byte_order_to_a (CURRENT_HOST_BYTE_ORDER));
169 return SIM_RC_FAIL;
170 }
171
172
173 /* set the target byte order */
174#if (WITH_TREE_PROPERTIES)
175 if (current_target_byte_order == 0)
176 current_target_byte_order
177 = (tree_find_boolean_property (root, "/options/little-endian?")
178 ? LITTLE_ENDIAN
179 : BIG_ENDIAN);
180#endif
181 if (current_target_byte_order == 0
182 && prefered_target_byte_order != 0)
183 current_target_byte_order = prefered_target_byte_order;
184 if (current_target_byte_order == 0)
185 current_target_byte_order = WITH_TARGET_BYTE_ORDER;
186 if (current_target_byte_order == 0)
187 current_target_byte_order = WITH_DEFAULT_TARGET_BYTE_ORDER;
188
189 /* verify the target byte order */
190 if (CURRENT_TARGET_BYTE_ORDER == 0)
191 {
192 sim_io_eprintf (sd, "Target byte order unspecified\n");
193 return SIM_RC_FAIL;
194 }
195 if (CURRENT_TARGET_BYTE_ORDER != current_target_byte_order)
196 sim_io_eprintf (sd, "Target (%s) and configured (%s) byte order in conflict\n",
197 config_byte_order_to_a (current_target_byte_order),
198 config_byte_order_to_a (CURRENT_TARGET_BYTE_ORDER));
199 if (prefered_target_byte_order != 0
200 && CURRENT_TARGET_BYTE_ORDER != prefered_target_byte_order)
201 sim_io_eprintf (sd, "Target (%s) and specified (%s) byte order in conflict\n",
202 config_byte_order_to_a (CURRENT_TARGET_BYTE_ORDER),
203 config_byte_order_to_a (prefered_target_byte_order));
204
205
206 /* set the stdio */
207 if (current_stdio == 0)
208 current_stdio = WITH_STDIO;
209 if (current_stdio == 0)
210 current_stdio = DO_USE_STDIO;
211
212 /* verify the stdio */
213 if (CURRENT_STDIO == 0)
214 {
215 sim_io_eprintf (sd, "Target standard IO unspecified\n");
216 return SIM_RC_FAIL;
217 }
218 if (CURRENT_STDIO != current_stdio)
219 {
220 sim_io_eprintf (sd, "Target (%s) and configured (%s) standard IO in conflict\n",
221 config_stdio_to_a (CURRENT_STDIO),
222 config_stdio_to_a (current_stdio));
223 return SIM_RC_FAIL;
224 }
225
226
227 /* check the value of MSB */
228 if (WITH_TARGET_WORD_MSB != 0
229 && WITH_TARGET_WORD_MSB != (WITH_TARGET_WORD_BITSIZE - 1))
230 {
231 sim_io_eprintf (sd, "Target bitsize (%d) contradicts target most significant bit (%d)\n",
232 WITH_TARGET_WORD_BITSIZE, WITH_TARGET_WORD_MSB);
233 return SIM_RC_FAIL;
234 }
235
236
237 /* set the environment */
238#if (WITH_TREE_PROPERTIES)
239 if (STATE_ENVIRONMENT (sd) == ALL_ENVIRONMENT)
240 {
241 const char *env =
242 tree_find_string_property(root, "/openprom/options/env");
243 STATE_ENVIRONMENT (sd) = ((strcmp(env, "user") == 0
244 || strcmp(env, "uea") == 0)
245 ? USER_ENVIRONMENT
246 : (strcmp(env, "virtual") == 0
247 || strcmp(env, "vea") == 0)
248 ? VIRTUAL_ENVIRONMENT
249 : (strcmp(env, "operating") == 0
250 || strcmp(env, "oea") == 0)
251 ? OPERATING_ENVIRONMENT
252 : ALL_ENVIRONMENT);
253 }
254#endif
255 if (STATE_ENVIRONMENT (sd) == ALL_ENVIRONMENT)
256 STATE_ENVIRONMENT (sd) = DEFAULT_ENVIRONMENT;
257
258
259 /* set the alignment */
260#if (WITH_TREE_PROPERTIES)
261 if (current_alignment == 0)
262 current_alignment =
263 (tree_find_boolean_property(root, "/openprom/options/strict-alignment?")
264 ? STRICT_ALIGNMENT
265 : NONSTRICT_ALIGNMENT);
266#endif
267 if (current_alignment == 0)
268 current_alignment = WITH_ALIGNMENT;
269 if (current_alignment == 0)
270 current_alignment = WITH_DEFAULT_ALIGNMENT;
271
272 /* verify the alignment */
273 if (CURRENT_ALIGNMENT == 0)
274 {
275 sim_io_eprintf (sd, "Target alignment unspecified\n");
276 return SIM_RC_FAIL;
277 }
278 if (CURRENT_ALIGNMENT != current_alignment)
279 {
280 sim_io_eprintf (sd, "Target (%s) and configured (%s) alignment in conflict\n",
281 config_alignment_to_a (CURRENT_ALIGNMENT),
282 config_alignment_to_a (current_alignment));
283 return SIM_RC_FAIL;
284 }
285
286#if defined (WITH_FLOATING_POINT)
287
288 /* set the floating point */
289 if (current_floating_point == 0)
290 current_floating_point = WITH_FLOATING_POINT;
291
292 /* verify the floating point */
293 if (CURRENT_FLOATING_POINT == 0)
294 {
295 sim_io_eprintf (sd, "Target floating-point unspecified\n");
296 return SIM_RC_FAIL;
297 }
298 if (CURRENT_FLOATING_POINT != current_floating_point)
299 {
300 sim_io_eprintf (sd, "Target (%s) and configured (%s) floating-point in conflict\n",
301 config_alignment_to_a (CURRENT_FLOATING_POINT),
302 config_alignment_to_a (current_floating_point));
303 return SIM_RC_FAIL;
304 }
305
306#endif
307 return SIM_RC_OK;
308}
309
310
311void
312print_sim_config (SIM_DESC sd)
313{
314#if defined (__GNUC__) && defined (__VERSION__)
315 sim_io_printf (sd, "Compiled by GCC %s on %s %s\n",
316 __VERSION__, __DATE__, __TIME__);
317#else
318 sim_io_printf (sd, "Compiled on %s %s\n", __DATE__, __TIME__);
319#endif
320
321 sim_io_printf (sd, "WITH_TARGET_BYTE_ORDER = %s\n",
322 config_byte_order_to_a (WITH_TARGET_BYTE_ORDER));
323
324 sim_io_printf (sd, "WITH_DEFAULT_TARGET_BYTE_ORDER = %s\n",
325 config_byte_order_to_a (WITH_DEFAULT_TARGET_BYTE_ORDER));
326
327 sim_io_printf (sd, "WITH_HOST_BYTE_ORDER = %s\n",
328 config_byte_order_to_a (WITH_HOST_BYTE_ORDER));
329
330 sim_io_printf (sd, "WITH_STDIO = %s\n",
331 config_stdio_to_a (WITH_STDIO));
332
333 sim_io_printf (sd, "WITH_TARGET_WORD_MSB = %d\n",
334 WITH_TARGET_WORD_MSB);
335
336 sim_io_printf (sd, "WITH_TARGET_WORD_BITSIZE = %d\n",
337 WITH_TARGET_WORD_BITSIZE);
338
339 sim_io_printf (sd, "WITH_TARGET_ADDRESS_BITSIZE = %d\n",
340 WITH_TARGET_ADDRESS_BITSIZE);
341
342 sim_io_printf (sd, "WITH_TARGET_CELL_BITSIZE = %d\n",
343 WITH_TARGET_CELL_BITSIZE);
344
345 sim_io_printf (sd, "WITH_TARGET_FLOATING_POINT_BITSIZE = %d\n",
346 WITH_TARGET_FLOATING_POINT_BITSIZE);
347
348 sim_io_printf (sd, "WITH_ENVIRONMENT = %s\n",
349 config_environment_to_a (WITH_ENVIRONMENT));
350
351 sim_io_printf (sd, "WITH_ALIGNMENT = %s\n",
352 config_alignment_to_a (WITH_ALIGNMENT));
353
354#if defined (WITH_DEFAULT_ALIGNMENT)
355 sim_io_printf (sd, "WITH_DEFAULT_ALIGNMENT = %s\n",
356 config_alignment_to_a (WITH_DEFAULT_ALIGNMENT));
357#endif
358
359#if defined (WITH_XOR_ENDIAN)
360 sim_io_printf (sd, "WITH_XOR_ENDIAN = %d\n", WITH_XOR_ENDIAN);
361#endif
362
363#if defined (WITH_FLOATING_POINT)
364 sim_io_printf (sd, "WITH_FLOATING_POINT = %s\n",
365 config_floating_point_to_a (WITH_FLOATING_POINT));
366#endif
367
368#if defined (WITH_SMP)
369 sim_io_printf (sd, "WITH_SMP = %d\n", WITH_SMP);
370#endif
371
372#if defined (WITH_RESERVED_BITS)
373 sim_io_printf (sd, "WITH_RESERVED_BITS = %d\n", WITH_RESERVED_BITS);
374#endif
375
376#if defined (WITH_PROFILE)
377 sim_io_printf (sd, "WITH_PROFILE = %d\n", WITH_PROFILE);
378#endif
379
380}
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