Commit | Line | Data |
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c906108c | 1 | /* Target-dependent code for the Matsushita MN10300 for GDB, the GNU debugger. |
b6ba6518 | 2 | Copyright 1996, 1997, 1998, 1999, 2000, 2001 |
8e65ff28 | 3 | Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b JM |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include "frame.h" | |
24 | #include "inferior.h" | |
25 | #include "obstack.h" | |
26 | #include "target.h" | |
27 | #include "value.h" | |
28 | #include "bfd.h" | |
29 | #include "gdb_string.h" | |
30 | #include "gdbcore.h" | |
31 | #include "symfile.h" | |
4e052eda | 32 | #include "regcache.h" |
ad8fe2ce | 33 | #include "arch-utils.h" |
c906108c | 34 | |
c2c6d25f | 35 | extern void _initialize_mn10300_tdep (void); |
a14ed312 KB |
36 | static CORE_ADDR mn10300_analyze_prologue (struct frame_info *fi, |
37 | CORE_ADDR pc); | |
c906108c | 38 | |
91225883 AC |
39 | /* mn10300 private data */ |
40 | struct gdbarch_tdep | |
41 | { | |
42 | int am33_mode; | |
43 | #define AM33_MODE (gdbarch_tdep (current_gdbarch)->am33_mode) | |
44 | }; | |
45 | ||
c906108c SS |
46 | /* Additional info used by the frame */ |
47 | ||
48 | struct frame_extra_info | |
c5aa993b JM |
49 | { |
50 | int status; | |
51 | int stack_size; | |
52 | }; | |
c906108c | 53 | |
0f71a2f6 | 54 | |
91225883 AC |
55 | static char * |
56 | register_name (int reg, char **regs, long sizeof_regs) | |
c2d11a7d | 57 | { |
91225883 AC |
58 | if (reg < 0 || reg >= sizeof_regs / sizeof (regs[0])) |
59 | return NULL; | |
60 | else | |
61 | return regs[reg]; | |
62 | } | |
63 | ||
64 | static char * | |
65 | mn10300_generic_register_name (int reg) | |
0f71a2f6 | 66 | { |
91225883 AC |
67 | static char *regs[] = |
68 | { "d0", "d1", "d2", "d3", "a0", "a1", "a2", "a3", | |
69 | "sp", "pc", "mdr", "psw", "lir", "lar", "", "", | |
70 | "", "", "", "", "", "", "", "", | |
71 | "", "", "", "", "", "", "", "fp" | |
72 | }; | |
73 | return register_name (reg, regs, sizeof regs); | |
0f71a2f6 JM |
74 | } |
75 | ||
91225883 AC |
76 | |
77 | static char * | |
78 | am33_register_name (int reg) | |
79 | { | |
80 | static char *regs[] = | |
81 | { "d0", "d1", "d2", "d3", "a0", "a1", "a2", "a3", | |
82 | "sp", "pc", "mdr", "psw", "lir", "lar", "", | |
83 | "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", | |
84 | "ssp", "msp", "usp", "mcrh", "mcrl", "mcvf", "", "", "" | |
85 | }; | |
86 | return register_name (reg, regs, sizeof regs); | |
87 | } | |
88 | ||
2ac51b36 | 89 | static CORE_ADDR |
fba45db2 | 90 | mn10300_saved_pc_after_call (struct frame_info *fi) |
0f71a2f6 JM |
91 | { |
92 | return read_memory_integer (read_register (SP_REGNUM), 4); | |
93 | } | |
94 | ||
95 | void | |
fba45db2 | 96 | mn10300_extract_return_value (struct type *type, char *regbuf, char *valbuf) |
0f71a2f6 JM |
97 | { |
98 | if (TYPE_CODE (type) == TYPE_CODE_PTR) | |
99 | memcpy (valbuf, regbuf + REGISTER_BYTE (4), TYPE_LENGTH (type)); | |
100 | else | |
101 | memcpy (valbuf, regbuf + REGISTER_BYTE (0), TYPE_LENGTH (type)); | |
102 | } | |
103 | ||
2ac51b36 | 104 | static CORE_ADDR |
fba45db2 | 105 | mn10300_extract_struct_value_address (char *regbuf) |
0f71a2f6 JM |
106 | { |
107 | return extract_address (regbuf + REGISTER_BYTE (4), | |
108 | REGISTER_RAW_SIZE (4)); | |
109 | } | |
110 | ||
2ac51b36 | 111 | static void |
fba45db2 | 112 | mn10300_store_return_value (struct type *type, char *valbuf) |
0f71a2f6 JM |
113 | { |
114 | if (TYPE_CODE (type) == TYPE_CODE_PTR) | |
115 | write_register_bytes (REGISTER_BYTE (4), valbuf, TYPE_LENGTH (type)); | |
116 | else | |
117 | write_register_bytes (REGISTER_BYTE (0), valbuf, TYPE_LENGTH (type)); | |
118 | } | |
119 | ||
a14ed312 | 120 | static struct frame_info *analyze_dummy_frame (CORE_ADDR, CORE_ADDR); |
c906108c | 121 | static struct frame_info * |
fba45db2 | 122 | analyze_dummy_frame (CORE_ADDR pc, CORE_ADDR frame) |
c906108c SS |
123 | { |
124 | static struct frame_info *dummy = NULL; | |
125 | if (dummy == NULL) | |
126 | { | |
127 | dummy = xmalloc (sizeof (struct frame_info)); | |
128 | dummy->saved_regs = xmalloc (SIZEOF_FRAME_SAVED_REGS); | |
129 | dummy->extra_info = xmalloc (sizeof (struct frame_extra_info)); | |
130 | } | |
131 | dummy->next = NULL; | |
132 | dummy->prev = NULL; | |
133 | dummy->pc = pc; | |
134 | dummy->frame = frame; | |
135 | dummy->extra_info->status = 0; | |
136 | dummy->extra_info->stack_size = 0; | |
137 | memset (dummy->saved_regs, '\000', SIZEOF_FRAME_SAVED_REGS); | |
138 | mn10300_analyze_prologue (dummy, 0); | |
139 | return dummy; | |
140 | } | |
141 | ||
142 | /* Values for frame_info.status */ | |
143 | ||
144 | #define MY_FRAME_IN_SP 0x1 | |
145 | #define MY_FRAME_IN_FP 0x2 | |
146 | #define NO_MORE_FRAMES 0x4 | |
147 | ||
148 | ||
149 | /* Should call_function allocate stack space for a struct return? */ | |
2ac51b36 | 150 | static int |
fba45db2 | 151 | mn10300_use_struct_convention (int gcc_p, struct type *type) |
c906108c SS |
152 | { |
153 | return (TYPE_NFIELDS (type) > 1 || TYPE_LENGTH (type) > 8); | |
154 | } | |
155 | ||
156 | /* The breakpoint instruction must be the same size as the smallest | |
157 | instruction in the instruction set. | |
158 | ||
159 | The Matsushita mn10x00 processors have single byte instructions | |
160 | so we need a single byte breakpoint. Matsushita hasn't defined | |
161 | one, so we defined it ourselves. */ | |
162 | ||
2ac51b36 | 163 | static unsigned char * |
fba45db2 | 164 | mn10300_breakpoint_from_pc (CORE_ADDR *bp_addr, int *bp_size) |
c906108c | 165 | { |
c5aa993b JM |
166 | static char breakpoint[] = |
167 | {0xff}; | |
c906108c SS |
168 | *bp_size = 1; |
169 | return breakpoint; | |
170 | } | |
171 | ||
172 | ||
173 | /* Fix fi->frame if it's bogus at this point. This is a helper | |
174 | function for mn10300_analyze_prologue. */ | |
175 | ||
176 | static void | |
fba45db2 | 177 | fix_frame_pointer (struct frame_info *fi, int stack_size) |
c906108c SS |
178 | { |
179 | if (fi && fi->next == NULL) | |
180 | { | |
181 | if (fi->extra_info->status & MY_FRAME_IN_SP) | |
182 | fi->frame = read_sp () - stack_size; | |
183 | else if (fi->extra_info->status & MY_FRAME_IN_FP) | |
184 | fi->frame = read_register (A3_REGNUM); | |
185 | } | |
186 | } | |
187 | ||
188 | ||
189 | /* Set offsets of registers saved by movm instruction. | |
190 | This is a helper function for mn10300_analyze_prologue. */ | |
191 | ||
192 | static void | |
fba45db2 | 193 | set_movm_offsets (struct frame_info *fi, int movm_args) |
c906108c SS |
194 | { |
195 | int offset = 0; | |
196 | ||
197 | if (fi == NULL || movm_args == 0) | |
198 | return; | |
199 | ||
200 | if (movm_args & 0x10) | |
201 | { | |
202 | fi->saved_regs[A3_REGNUM] = fi->frame + offset; | |
203 | offset += 4; | |
204 | } | |
205 | if (movm_args & 0x20) | |
206 | { | |
207 | fi->saved_regs[A2_REGNUM] = fi->frame + offset; | |
208 | offset += 4; | |
209 | } | |
210 | if (movm_args & 0x40) | |
211 | { | |
212 | fi->saved_regs[D3_REGNUM] = fi->frame + offset; | |
213 | offset += 4; | |
214 | } | |
215 | if (movm_args & 0x80) | |
216 | { | |
217 | fi->saved_regs[D2_REGNUM] = fi->frame + offset; | |
218 | offset += 4; | |
219 | } | |
91225883 | 220 | if (AM33_MODE && movm_args & 0x02) |
c2d11a7d JM |
221 | { |
222 | fi->saved_regs[E0_REGNUM + 5] = fi->frame + offset; | |
223 | fi->saved_regs[E0_REGNUM + 4] = fi->frame + offset + 4; | |
224 | fi->saved_regs[E0_REGNUM + 3] = fi->frame + offset + 8; | |
225 | fi->saved_regs[E0_REGNUM + 2] = fi->frame + offset + 12; | |
226 | } | |
c906108c SS |
227 | } |
228 | ||
229 | ||
230 | /* The main purpose of this file is dealing with prologues to extract | |
231 | information about stack frames and saved registers. | |
232 | ||
233 | For reference here's how prologues look on the mn10300: | |
234 | ||
c5aa993b JM |
235 | With frame pointer: |
236 | movm [d2,d3,a2,a3],sp | |
237 | mov sp,a3 | |
238 | add <size>,sp | |
c906108c | 239 | |
c5aa993b JM |
240 | Without frame pointer: |
241 | movm [d2,d3,a2,a3],sp (if needed) | |
242 | add <size>,sp | |
c906108c SS |
243 | |
244 | One day we might keep the stack pointer constant, that won't | |
245 | change the code for prologues, but it will make the frame | |
246 | pointerless case much more common. */ | |
c5aa993b | 247 | |
c906108c SS |
248 | /* Analyze the prologue to determine where registers are saved, |
249 | the end of the prologue, etc etc. Return the end of the prologue | |
250 | scanned. | |
251 | ||
252 | We store into FI (if non-null) several tidbits of information: | |
253 | ||
c5aa993b JM |
254 | * stack_size -- size of this stack frame. Note that if we stop in |
255 | certain parts of the prologue/epilogue we may claim the size of the | |
256 | current frame is zero. This happens when the current frame has | |
257 | not been allocated yet or has already been deallocated. | |
c906108c | 258 | |
c5aa993b | 259 | * fsr -- Addresses of registers saved in the stack by this frame. |
c906108c | 260 | |
c5aa993b JM |
261 | * status -- A (relatively) generic status indicator. It's a bitmask |
262 | with the following bits: | |
c906108c | 263 | |
c5aa993b JM |
264 | MY_FRAME_IN_SP: The base of the current frame is actually in |
265 | the stack pointer. This can happen for frame pointerless | |
266 | functions, or cases where we're stopped in the prologue/epilogue | |
267 | itself. For these cases mn10300_analyze_prologue will need up | |
268 | update fi->frame before returning or analyzing the register | |
269 | save instructions. | |
c906108c | 270 | |
c5aa993b JM |
271 | MY_FRAME_IN_FP: The base of the current frame is in the |
272 | frame pointer register ($a2). | |
c906108c | 273 | |
c5aa993b JM |
274 | NO_MORE_FRAMES: Set this if the current frame is "start" or |
275 | if the first instruction looks like mov <imm>,sp. This tells | |
276 | frame chain to not bother trying to unwind past this frame. */ | |
c906108c SS |
277 | |
278 | static CORE_ADDR | |
fba45db2 | 279 | mn10300_analyze_prologue (struct frame_info *fi, CORE_ADDR pc) |
c906108c SS |
280 | { |
281 | CORE_ADDR func_addr, func_end, addr, stop; | |
282 | CORE_ADDR stack_size; | |
283 | int imm_size; | |
284 | unsigned char buf[4]; | |
285 | int status, movm_args = 0; | |
286 | char *name; | |
287 | ||
288 | /* Use the PC in the frame if it's provided to look up the | |
289 | start of this function. */ | |
290 | pc = (fi ? fi->pc : pc); | |
291 | ||
292 | /* Find the start of this function. */ | |
293 | status = find_pc_partial_function (pc, &name, &func_addr, &func_end); | |
294 | ||
295 | /* Do nothing if we couldn't find the start of this function or if we're | |
296 | stopped at the first instruction in the prologue. */ | |
297 | if (status == 0) | |
43ff13b4 JM |
298 | { |
299 | return pc; | |
300 | } | |
c906108c SS |
301 | |
302 | /* If we're in start, then give up. */ | |
303 | if (strcmp (name, "start") == 0) | |
304 | { | |
305 | if (fi != NULL) | |
306 | fi->extra_info->status = NO_MORE_FRAMES; | |
307 | return pc; | |
308 | } | |
309 | ||
310 | /* At the start of a function our frame is in the stack pointer. */ | |
311 | if (fi) | |
312 | fi->extra_info->status = MY_FRAME_IN_SP; | |
313 | ||
314 | /* Get the next two bytes into buf, we need two because rets is a two | |
315 | byte insn and the first isn't enough to uniquely identify it. */ | |
316 | status = read_memory_nobpt (pc, buf, 2); | |
317 | if (status != 0) | |
318 | return pc; | |
319 | ||
320 | /* If we're physically on an "rets" instruction, then our frame has | |
321 | already been deallocated. Note this can also be true for retf | |
322 | and ret if they specify a size of zero. | |
323 | ||
324 | In this case fi->frame is bogus, we need to fix it. */ | |
325 | if (fi && buf[0] == 0xf0 && buf[1] == 0xfc) | |
326 | { | |
327 | if (fi->next == NULL) | |
328 | fi->frame = read_sp (); | |
329 | return fi->pc; | |
330 | } | |
331 | ||
332 | /* Similarly if we're stopped on the first insn of a prologue as our | |
333 | frame hasn't been allocated yet. */ | |
334 | if (fi && fi->pc == func_addr) | |
335 | { | |
336 | if (fi->next == NULL) | |
337 | fi->frame = read_sp (); | |
338 | return fi->pc; | |
339 | } | |
340 | ||
341 | /* Figure out where to stop scanning. */ | |
342 | stop = fi ? fi->pc : func_end; | |
343 | ||
344 | /* Don't walk off the end of the function. */ | |
345 | stop = stop > func_end ? func_end : stop; | |
346 | ||
347 | /* Start scanning on the first instruction of this function. */ | |
348 | addr = func_addr; | |
349 | ||
350 | /* Suck in two bytes. */ | |
351 | status = read_memory_nobpt (addr, buf, 2); | |
352 | if (status != 0) | |
353 | { | |
354 | fix_frame_pointer (fi, 0); | |
355 | return addr; | |
356 | } | |
357 | ||
358 | /* First see if this insn sets the stack pointer; if so, it's something | |
359 | we won't understand, so quit now. */ | |
360 | if (buf[0] == 0xf2 && (buf[1] & 0xf3) == 0xf0) | |
361 | { | |
362 | if (fi) | |
363 | fi->extra_info->status = NO_MORE_FRAMES; | |
364 | return addr; | |
365 | } | |
366 | ||
367 | /* Now look for movm [regs],sp, which saves the callee saved registers. | |
368 | ||
369 | At this time we don't know if fi->frame is valid, so we only note | |
370 | that we encountered a movm instruction. Later, we'll set the entries | |
371 | in fsr.regs as needed. */ | |
372 | if (buf[0] == 0xcf) | |
373 | { | |
374 | /* Extract the register list for the movm instruction. */ | |
375 | status = read_memory_nobpt (addr + 1, buf, 1); | |
376 | movm_args = *buf; | |
377 | ||
378 | addr += 2; | |
379 | ||
380 | /* Quit now if we're beyond the stop point. */ | |
381 | if (addr >= stop) | |
382 | { | |
383 | /* Fix fi->frame since it's bogus at this point. */ | |
384 | if (fi && fi->next == NULL) | |
385 | fi->frame = read_sp (); | |
386 | ||
387 | /* Note if/where callee saved registers were saved. */ | |
388 | set_movm_offsets (fi, movm_args); | |
389 | return addr; | |
390 | } | |
391 | ||
392 | /* Get the next two bytes so the prologue scan can continue. */ | |
393 | status = read_memory_nobpt (addr, buf, 2); | |
394 | if (status != 0) | |
395 | { | |
396 | /* Fix fi->frame since it's bogus at this point. */ | |
397 | if (fi && fi->next == NULL) | |
398 | fi->frame = read_sp (); | |
399 | ||
400 | /* Note if/where callee saved registers were saved. */ | |
401 | set_movm_offsets (fi, movm_args); | |
402 | return addr; | |
403 | } | |
404 | } | |
405 | ||
406 | /* Now see if we set up a frame pointer via "mov sp,a3" */ | |
407 | if (buf[0] == 0x3f) | |
408 | { | |
409 | addr += 1; | |
410 | ||
411 | /* The frame pointer is now valid. */ | |
412 | if (fi) | |
413 | { | |
414 | fi->extra_info->status |= MY_FRAME_IN_FP; | |
415 | fi->extra_info->status &= ~MY_FRAME_IN_SP; | |
416 | } | |
417 | ||
418 | /* Quit now if we're beyond the stop point. */ | |
419 | if (addr >= stop) | |
420 | { | |
421 | /* Fix fi->frame if it's bogus at this point. */ | |
422 | fix_frame_pointer (fi, 0); | |
423 | ||
424 | /* Note if/where callee saved registers were saved. */ | |
425 | set_movm_offsets (fi, movm_args); | |
426 | return addr; | |
427 | } | |
428 | ||
429 | /* Get two more bytes so scanning can continue. */ | |
430 | status = read_memory_nobpt (addr, buf, 2); | |
431 | if (status != 0) | |
432 | { | |
433 | /* Fix fi->frame if it's bogus at this point. */ | |
434 | fix_frame_pointer (fi, 0); | |
435 | ||
436 | /* Note if/where callee saved registers were saved. */ | |
437 | set_movm_offsets (fi, movm_args); | |
438 | return addr; | |
439 | } | |
440 | } | |
c5aa993b | 441 | |
c906108c SS |
442 | /* Next we should allocate the local frame. No more prologue insns |
443 | are found after allocating the local frame. | |
c5aa993b | 444 | |
c906108c | 445 | Search for add imm8,sp (0xf8feXX) |
c5aa993b JM |
446 | or add imm16,sp (0xfafeXXXX) |
447 | or add imm32,sp (0xfcfeXXXXXXXX). | |
448 | ||
c906108c SS |
449 | If none of the above was found, then this prologue has no |
450 | additional stack. */ | |
451 | ||
452 | status = read_memory_nobpt (addr, buf, 2); | |
453 | if (status != 0) | |
454 | { | |
455 | /* Fix fi->frame if it's bogus at this point. */ | |
456 | fix_frame_pointer (fi, 0); | |
457 | ||
458 | /* Note if/where callee saved registers were saved. */ | |
459 | set_movm_offsets (fi, movm_args); | |
460 | return addr; | |
461 | } | |
462 | ||
463 | imm_size = 0; | |
464 | if (buf[0] == 0xf8 && buf[1] == 0xfe) | |
465 | imm_size = 1; | |
466 | else if (buf[0] == 0xfa && buf[1] == 0xfe) | |
467 | imm_size = 2; | |
468 | else if (buf[0] == 0xfc && buf[1] == 0xfe) | |
469 | imm_size = 4; | |
470 | ||
471 | if (imm_size != 0) | |
472 | { | |
473 | /* Suck in imm_size more bytes, they'll hold the size of the | |
474 | current frame. */ | |
475 | status = read_memory_nobpt (addr + 2, buf, imm_size); | |
476 | if (status != 0) | |
477 | { | |
478 | /* Fix fi->frame if it's bogus at this point. */ | |
479 | fix_frame_pointer (fi, 0); | |
480 | ||
481 | /* Note if/where callee saved registers were saved. */ | |
482 | set_movm_offsets (fi, movm_args); | |
483 | return addr; | |
484 | } | |
485 | ||
486 | /* Note the size of the stack in the frame info structure. */ | |
487 | stack_size = extract_signed_integer (buf, imm_size); | |
488 | if (fi) | |
489 | fi->extra_info->stack_size = stack_size; | |
490 | ||
491 | /* We just consumed 2 + imm_size bytes. */ | |
492 | addr += 2 + imm_size; | |
493 | ||
494 | /* No more prologue insns follow, so begin preparation to return. */ | |
495 | /* Fix fi->frame if it's bogus at this point. */ | |
496 | fix_frame_pointer (fi, stack_size); | |
497 | ||
498 | /* Note if/where callee saved registers were saved. */ | |
499 | set_movm_offsets (fi, movm_args); | |
500 | return addr; | |
501 | } | |
502 | ||
503 | /* We never found an insn which allocates local stack space, regardless | |
504 | this is the end of the prologue. */ | |
505 | /* Fix fi->frame if it's bogus at this point. */ | |
506 | fix_frame_pointer (fi, 0); | |
507 | ||
508 | /* Note if/where callee saved registers were saved. */ | |
509 | set_movm_offsets (fi, movm_args); | |
510 | return addr; | |
511 | } | |
c5aa993b | 512 | |
c906108c SS |
513 | /* Function: frame_chain |
514 | Figure out and return the caller's frame pointer given current | |
515 | frame_info struct. | |
516 | ||
517 | We don't handle dummy frames yet but we would probably just return the | |
518 | stack pointer that was in use at the time the function call was made? */ | |
519 | ||
2ac51b36 | 520 | static CORE_ADDR |
fba45db2 | 521 | mn10300_frame_chain (struct frame_info *fi) |
c906108c SS |
522 | { |
523 | struct frame_info *dummy; | |
524 | /* Walk through the prologue to determine the stack size, | |
525 | location of saved registers, end of the prologue, etc. */ | |
526 | if (fi->extra_info->status == 0) | |
c5aa993b | 527 | mn10300_analyze_prologue (fi, (CORE_ADDR) 0); |
c906108c SS |
528 | |
529 | /* Quit now if mn10300_analyze_prologue set NO_MORE_FRAMES. */ | |
530 | if (fi->extra_info->status & NO_MORE_FRAMES) | |
531 | return 0; | |
532 | ||
533 | /* Now that we've analyzed our prologue, determine the frame | |
534 | pointer for our caller. | |
535 | ||
c5aa993b JM |
536 | If our caller has a frame pointer, then we need to |
537 | find the entry value of $a3 to our function. | |
538 | ||
539 | If fsr.regs[A3_REGNUM] is nonzero, then it's at the memory | |
540 | location pointed to by fsr.regs[A3_REGNUM]. | |
c906108c | 541 | |
c5aa993b | 542 | Else it's still in $a3. |
c906108c | 543 | |
c5aa993b JM |
544 | If our caller does not have a frame pointer, then his |
545 | frame base is fi->frame + -caller's stack size. */ | |
c906108c | 546 | |
c906108c SS |
547 | /* The easiest way to get that info is to analyze our caller's frame. |
548 | So we set up a dummy frame and call mn10300_analyze_prologue to | |
549 | find stuff for us. */ | |
550 | dummy = analyze_dummy_frame (FRAME_SAVED_PC (fi), fi->frame); | |
551 | ||
552 | if (dummy->extra_info->status & MY_FRAME_IN_FP) | |
553 | { | |
554 | /* Our caller has a frame pointer. So find the frame in $a3 or | |
555 | in the stack. */ | |
556 | if (fi->saved_regs[A3_REGNUM]) | |
557 | return (read_memory_integer (fi->saved_regs[A3_REGNUM], REGISTER_SIZE)); | |
558 | else | |
559 | return read_register (A3_REGNUM); | |
560 | } | |
561 | else | |
562 | { | |
563 | int adjust = 0; | |
564 | ||
565 | adjust += (fi->saved_regs[D2_REGNUM] ? 4 : 0); | |
566 | adjust += (fi->saved_regs[D3_REGNUM] ? 4 : 0); | |
567 | adjust += (fi->saved_regs[A2_REGNUM] ? 4 : 0); | |
568 | adjust += (fi->saved_regs[A3_REGNUM] ? 4 : 0); | |
91225883 | 569 | if (AM33_MODE) |
c2d11a7d JM |
570 | { |
571 | adjust += (fi->saved_regs[E0_REGNUM + 5] ? 4 : 0); | |
572 | adjust += (fi->saved_regs[E0_REGNUM + 4] ? 4 : 0); | |
573 | adjust += (fi->saved_regs[E0_REGNUM + 3] ? 4 : 0); | |
574 | adjust += (fi->saved_regs[E0_REGNUM + 2] ? 4 : 0); | |
575 | } | |
c906108c SS |
576 | |
577 | /* Our caller does not have a frame pointer. So his frame starts | |
c5aa993b JM |
578 | at the base of our frame (fi->frame) + register save space |
579 | + <his size>. */ | |
c906108c SS |
580 | return fi->frame + adjust + -dummy->extra_info->stack_size; |
581 | } | |
582 | } | |
583 | ||
584 | /* Function: skip_prologue | |
585 | Return the address of the first inst past the prologue of the function. */ | |
586 | ||
2ac51b36 | 587 | static CORE_ADDR |
fba45db2 | 588 | mn10300_skip_prologue (CORE_ADDR pc) |
c906108c SS |
589 | { |
590 | /* We used to check the debug symbols, but that can lose if | |
591 | we have a null prologue. */ | |
592 | return mn10300_analyze_prologue (NULL, pc); | |
593 | } | |
594 | ||
ee9f9641 JB |
595 | /* generic_pop_current_frame calls this function if the current |
596 | frame isn't a dummy frame. */ | |
597 | static void | |
598 | mn10300_pop_frame_regular (struct frame_info *frame) | |
c906108c SS |
599 | { |
600 | int regnum; | |
601 | ||
ee9f9641 | 602 | write_register (PC_REGNUM, FRAME_SAVED_PC (frame)); |
c906108c | 603 | |
ee9f9641 JB |
604 | /* Restore any saved registers. */ |
605 | for (regnum = 0; regnum < NUM_REGS; regnum++) | |
606 | if (frame->saved_regs[regnum] != 0) | |
607 | { | |
608 | ULONGEST value; | |
c906108c | 609 | |
ee9f9641 JB |
610 | value = read_memory_unsigned_integer (frame->saved_regs[regnum], |
611 | REGISTER_RAW_SIZE (regnum)); | |
612 | write_register (regnum, value); | |
613 | } | |
c906108c | 614 | |
ee9f9641 JB |
615 | /* Actually cut back the stack. */ |
616 | write_register (SP_REGNUM, FRAME_FP (frame)); | |
c906108c | 617 | |
ee9f9641 JB |
618 | /* Don't we need to set the PC?!? XXX FIXME. */ |
619 | } | |
620 | ||
621 | /* Function: pop_frame | |
622 | This routine gets called when either the user uses the `return' | |
623 | command, or the call dummy breakpoint gets hit. */ | |
624 | static void | |
625 | mn10300_pop_frame (void) | |
626 | { | |
627 | /* This function checks for and handles generic dummy frames, and | |
628 | calls back to our function for ordinary frames. */ | |
629 | generic_pop_current_frame (mn10300_pop_frame_regular); | |
c906108c SS |
630 | |
631 | /* Throw away any cached frame information. */ | |
632 | flush_cached_frames (); | |
633 | } | |
634 | ||
635 | /* Function: push_arguments | |
636 | Setup arguments for a call to the target. Arguments go in | |
637 | order on the stack. */ | |
638 | ||
2ac51b36 | 639 | static CORE_ADDR |
91225883 AC |
640 | mn10300_push_arguments (int nargs, struct value **args, CORE_ADDR sp, |
641 | int struct_return, CORE_ADDR struct_addr) | |
c906108c SS |
642 | { |
643 | int argnum = 0; | |
644 | int len = 0; | |
645 | int stack_offset = 0; | |
646 | int regsused = struct_return ? 1 : 0; | |
647 | ||
648 | /* This should be a nop, but align the stack just in case something | |
649 | went wrong. Stacks are four byte aligned on the mn10300. */ | |
650 | sp &= ~3; | |
651 | ||
652 | /* Now make space on the stack for the args. | |
653 | ||
654 | XXX This doesn't appear to handle pass-by-invisible reference | |
655 | arguments. */ | |
656 | for (argnum = 0; argnum < nargs; argnum++) | |
657 | { | |
658 | int arg_length = (TYPE_LENGTH (VALUE_TYPE (args[argnum])) + 3) & ~3; | |
659 | ||
660 | while (regsused < 2 && arg_length > 0) | |
661 | { | |
662 | regsused++; | |
663 | arg_length -= 4; | |
664 | } | |
665 | len += arg_length; | |
666 | } | |
667 | ||
668 | /* Allocate stack space. */ | |
669 | sp -= len; | |
670 | ||
671 | regsused = struct_return ? 1 : 0; | |
672 | /* Push all arguments onto the stack. */ | |
673 | for (argnum = 0; argnum < nargs; argnum++) | |
674 | { | |
675 | int len; | |
676 | char *val; | |
677 | ||
678 | /* XXX Check this. What about UNIONS? */ | |
679 | if (TYPE_CODE (VALUE_TYPE (*args)) == TYPE_CODE_STRUCT | |
680 | && TYPE_LENGTH (VALUE_TYPE (*args)) > 8) | |
681 | { | |
682 | /* XXX Wrong, we want a pointer to this argument. */ | |
c5aa993b JM |
683 | len = TYPE_LENGTH (VALUE_TYPE (*args)); |
684 | val = (char *) VALUE_CONTENTS (*args); | |
c906108c SS |
685 | } |
686 | else | |
687 | { | |
688 | len = TYPE_LENGTH (VALUE_TYPE (*args)); | |
c5aa993b | 689 | val = (char *) VALUE_CONTENTS (*args); |
c906108c SS |
690 | } |
691 | ||
692 | while (regsused < 2 && len > 0) | |
693 | { | |
694 | write_register (regsused, extract_unsigned_integer (val, 4)); | |
695 | val += 4; | |
696 | len -= 4; | |
697 | regsused++; | |
698 | } | |
699 | ||
700 | while (len > 0) | |
701 | { | |
702 | write_memory (sp + stack_offset, val, 4); | |
703 | len -= 4; | |
704 | val += 4; | |
705 | stack_offset += 4; | |
706 | } | |
707 | ||
708 | args++; | |
709 | } | |
710 | ||
711 | /* Make space for the flushback area. */ | |
712 | sp -= 8; | |
713 | return sp; | |
714 | } | |
715 | ||
716 | /* Function: push_return_address (pc) | |
717 | Set up the return address for the inferior function call. | |
718 | Needed for targets where we don't actually execute a JSR/BSR instruction */ | |
c5aa993b | 719 | |
2ac51b36 | 720 | static CORE_ADDR |
fba45db2 | 721 | mn10300_push_return_address (CORE_ADDR pc, CORE_ADDR sp) |
c906108c SS |
722 | { |
723 | unsigned char buf[4]; | |
724 | ||
725 | store_unsigned_integer (buf, 4, CALL_DUMMY_ADDRESS ()); | |
726 | write_memory (sp - 4, buf, 4); | |
727 | return sp - 4; | |
728 | } | |
729 | ||
730 | /* Function: store_struct_return (addr,sp) | |
731 | Store the structure value return address for an inferior function | |
732 | call. */ | |
c5aa993b | 733 | |
2ac51b36 | 734 | static void |
fba45db2 | 735 | mn10300_store_struct_return (CORE_ADDR addr, CORE_ADDR sp) |
c906108c SS |
736 | { |
737 | /* The structure return address is passed as the first argument. */ | |
738 | write_register (0, addr); | |
c906108c | 739 | } |
c5aa993b | 740 | |
c906108c SS |
741 | /* Function: frame_saved_pc |
742 | Find the caller of this frame. We do this by seeing if RP_REGNUM | |
743 | is saved in the stack anywhere, otherwise we get it from the | |
744 | registers. If the inner frame is a dummy frame, return its PC | |
745 | instead of RP, because that's where "caller" of the dummy-frame | |
746 | will be found. */ | |
747 | ||
2ac51b36 | 748 | static CORE_ADDR |
fba45db2 | 749 | mn10300_frame_saved_pc (struct frame_info *fi) |
c906108c SS |
750 | { |
751 | int adjust = 0; | |
752 | ||
753 | adjust += (fi->saved_regs[D2_REGNUM] ? 4 : 0); | |
754 | adjust += (fi->saved_regs[D3_REGNUM] ? 4 : 0); | |
755 | adjust += (fi->saved_regs[A2_REGNUM] ? 4 : 0); | |
756 | adjust += (fi->saved_regs[A3_REGNUM] ? 4 : 0); | |
91225883 | 757 | if (AM33_MODE) |
c2d11a7d JM |
758 | { |
759 | adjust += (fi->saved_regs[E0_REGNUM + 5] ? 4 : 0); | |
760 | adjust += (fi->saved_regs[E0_REGNUM + 4] ? 4 : 0); | |
761 | adjust += (fi->saved_regs[E0_REGNUM + 3] ? 4 : 0); | |
762 | adjust += (fi->saved_regs[E0_REGNUM + 2] ? 4 : 0); | |
763 | } | |
c906108c SS |
764 | |
765 | return (read_memory_integer (fi->frame + adjust, REGISTER_SIZE)); | |
766 | } | |
767 | ||
c906108c SS |
768 | /* Function: mn10300_init_extra_frame_info |
769 | Setup the frame's frame pointer, pc, and frame addresses for saved | |
770 | registers. Most of the work is done in mn10300_analyze_prologue(). | |
771 | ||
772 | Note that when we are called for the last frame (currently active frame), | |
773 | that fi->pc and fi->frame will already be setup. However, fi->frame will | |
774 | be valid only if this routine uses FP. For previous frames, fi-frame will | |
775 | always be correct. mn10300_analyze_prologue will fix fi->frame if | |
776 | it's not valid. | |
777 | ||
778 | We can be called with the PC in the call dummy under two circumstances. | |
779 | First, during normal backtracing, second, while figuring out the frame | |
780 | pointer just prior to calling the target function (see run_stack_dummy). */ | |
781 | ||
2ac51b36 | 782 | static void |
ad8fe2ce | 783 | mn10300_init_extra_frame_info (int fromleaf, struct frame_info *fi) |
c906108c SS |
784 | { |
785 | if (fi->next) | |
786 | fi->pc = FRAME_SAVED_PC (fi->next); | |
787 | ||
788 | frame_saved_regs_zalloc (fi); | |
789 | fi->extra_info = (struct frame_extra_info *) | |
790 | frame_obstack_alloc (sizeof (struct frame_extra_info)); | |
791 | ||
792 | fi->extra_info->status = 0; | |
793 | fi->extra_info->stack_size = 0; | |
794 | ||
795 | mn10300_analyze_prologue (fi, 0); | |
796 | } | |
797 | ||
ad8fe2ce JB |
798 | |
799 | /* This function's job is handled by init_extra_frame_info. */ | |
2ac51b36 | 800 | static void |
ad8fe2ce JB |
801 | mn10300_frame_init_saved_regs (struct frame_info *frame) |
802 | { | |
803 | } | |
804 | ||
805 | ||
c906108c SS |
806 | /* Function: mn10300_virtual_frame_pointer |
807 | Return the register that the function uses for a frame pointer, | |
808 | plus any necessary offset to be applied to the register before | |
809 | any frame pointer offsets. */ | |
810 | ||
811 | void | |
fba45db2 | 812 | mn10300_virtual_frame_pointer (CORE_ADDR pc, long *reg, long *offset) |
c906108c SS |
813 | { |
814 | struct frame_info *dummy = analyze_dummy_frame (pc, 0); | |
815 | /* Set up a dummy frame_info, Analyze the prolog and fill in the | |
816 | extra info. */ | |
817 | /* Results will tell us which type of frame it uses. */ | |
818 | if (dummy->extra_info->status & MY_FRAME_IN_SP) | |
819 | { | |
c5aa993b | 820 | *reg = SP_REGNUM; |
c906108c SS |
821 | *offset = -(dummy->extra_info->stack_size); |
822 | } | |
823 | else | |
824 | { | |
c5aa993b | 825 | *reg = A3_REGNUM; |
c906108c SS |
826 | *offset = 0; |
827 | } | |
828 | } | |
c5aa993b | 829 | |
91225883 AC |
830 | static int |
831 | mn10300_reg_struct_has_addr (int gcc_p, struct type *type) | |
c906108c | 832 | { |
91225883 AC |
833 | return (TYPE_LENGTH (type) > 8); |
834 | } | |
c906108c | 835 | |
f6df245f AC |
836 | static struct type * |
837 | mn10300_register_virtual_type (int reg) | |
838 | { | |
839 | return builtin_type_int; | |
840 | } | |
841 | ||
842 | static int | |
843 | mn10300_register_byte (int reg) | |
844 | { | |
845 | return (reg * 4); | |
846 | } | |
847 | ||
848 | static int | |
849 | mn10300_register_virtual_size (int reg) | |
850 | { | |
851 | return 4; | |
852 | } | |
853 | ||
854 | static int | |
855 | mn10300_register_raw_size (int reg) | |
856 | { | |
857 | return 4; | |
858 | } | |
859 | ||
860 | static void | |
861 | mn10300_print_register (const char *name, int regnum, int reg_width) | |
862 | { | |
863 | char *raw_buffer = alloca (MAX_REGISTER_RAW_SIZE); | |
864 | ||
865 | if (reg_width) | |
866 | printf_filtered ("%*s: ", reg_width, name); | |
867 | else | |
868 | printf_filtered ("%s: ", name); | |
869 | ||
870 | /* Get the data */ | |
871 | if (read_relative_register_raw_bytes (regnum, raw_buffer)) | |
872 | { | |
873 | printf_filtered ("[invalid]"); | |
874 | return; | |
875 | } | |
876 | else | |
877 | { | |
878 | int byte; | |
879 | if (TARGET_BYTE_ORDER == BIG_ENDIAN) | |
880 | { | |
881 | for (byte = REGISTER_RAW_SIZE (regnum) - REGISTER_VIRTUAL_SIZE (regnum); | |
882 | byte < REGISTER_RAW_SIZE (regnum); | |
883 | byte++) | |
884 | printf_filtered ("%02x", (unsigned char) raw_buffer[byte]); | |
885 | } | |
886 | else | |
887 | { | |
888 | for (byte = REGISTER_VIRTUAL_SIZE (regnum) - 1; | |
889 | byte >= 0; | |
890 | byte--) | |
891 | printf_filtered ("%02x", (unsigned char) raw_buffer[byte]); | |
892 | } | |
893 | } | |
894 | } | |
895 | ||
896 | static void | |
897 | mn10300_do_registers_info (int regnum, int fpregs) | |
898 | { | |
899 | if (regnum >= 0) | |
900 | { | |
901 | const char *name = REGISTER_NAME (regnum); | |
902 | if (name == NULL || name[0] == '\0') | |
903 | error ("Not a valid register for the current processor type"); | |
904 | mn10300_print_register (name, regnum, 0); | |
905 | printf_filtered ("\n"); | |
906 | } | |
907 | else | |
908 | { | |
909 | /* print registers in an array 4x8 */ | |
910 | int r; | |
911 | int reg; | |
912 | const int nr_in_row = 4; | |
913 | const int reg_width = 4; | |
914 | for (r = 0; r < NUM_REGS; r += nr_in_row) | |
915 | { | |
916 | int c; | |
917 | int printing = 0; | |
918 | int padding = 0; | |
919 | for (c = r; c < r + nr_in_row; c++) | |
920 | { | |
921 | const char *name = REGISTER_NAME (c); | |
922 | if (name != NULL && *name != '\0') | |
923 | { | |
924 | printing = 1; | |
925 | while (padding > 0) | |
926 | { | |
927 | printf_filtered (" "); | |
928 | padding--; | |
929 | } | |
930 | mn10300_print_register (name, c, reg_width); | |
931 | printf_filtered (" "); | |
932 | } | |
933 | else | |
934 | { | |
935 | padding += (reg_width + 2 + 8 + 1); | |
936 | } | |
937 | } | |
938 | if (printing) | |
939 | printf_filtered ("\n"); | |
940 | } | |
941 | } | |
942 | } | |
943 | ||
91225883 | 944 | /* Dump out the mn10300 speciic architecture information. */ |
c906108c | 945 | |
91225883 AC |
946 | static void |
947 | mn10300_dump_tdep (struct gdbarch *current_gdbarch, struct ui_file *file) | |
948 | { | |
949 | struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); | |
950 | fprintf_unfiltered (file, "mn10300_dump_tdep: am33_mode = %d\n", | |
951 | tdep->am33_mode); | |
952 | } | |
c2d11a7d | 953 | |
91225883 AC |
954 | static struct gdbarch * |
955 | mn10300_gdbarch_init (struct gdbarch_info info, | |
956 | struct gdbarch_list *arches) | |
957 | { | |
ad8fe2ce | 958 | static LONGEST mn10300_call_dummy_words[] = { 0 }; |
91225883 AC |
959 | struct gdbarch *gdbarch; |
960 | struct gdbarch_tdep *tdep = NULL; | |
961 | int am33_mode; | |
962 | gdbarch_register_name_ftype *register_name; | |
963 | int mach; | |
964 | int num_regs; | |
965 | ||
966 | arches = gdbarch_list_lookup_by_info (arches, &info); | |
967 | if (arches != NULL) | |
968 | return arches->gdbarch; | |
969 | tdep = xmalloc (sizeof (struct gdbarch_tdep)); | |
970 | gdbarch = gdbarch_alloc (&info, tdep); | |
971 | ||
972 | if (info.bfd_arch_info != NULL | |
f6df245f | 973 | && info.bfd_arch_info->arch == bfd_arch_mn10300) |
91225883 AC |
974 | mach = info.bfd_arch_info->mach; |
975 | else | |
976 | mach = 0; | |
977 | switch (mach) | |
978 | { | |
979 | case 0: | |
f6df245f | 980 | case bfd_mach_mn10300: |
91225883 AC |
981 | am33_mode = 0; |
982 | register_name = mn10300_generic_register_name; | |
983 | num_regs = 32; | |
984 | break; | |
985 | case bfd_mach_am33: | |
c2d11a7d | 986 | am33_mode = 1; |
91225883 AC |
987 | register_name = am33_register_name; |
988 | num_regs = 32; | |
989 | break; | |
990 | default: | |
8e65ff28 AC |
991 | internal_error (__FILE__, __LINE__, |
992 | "mn10300_gdbarch_init: Unknown mn10300 variant"); | |
91225883 | 993 | return NULL; /* keep GCC happy. */ |
c2d11a7d | 994 | } |
c906108c | 995 | |
584f96a8 JB |
996 | /* Registers. */ |
997 | set_gdbarch_num_regs (gdbarch, num_regs); | |
998 | set_gdbarch_register_name (gdbarch, register_name); | |
f6df245f | 999 | set_gdbarch_register_size (gdbarch, 4); |
584f96a8 JB |
1000 | set_gdbarch_register_bytes (gdbarch, |
1001 | num_regs * gdbarch_register_size (gdbarch)); | |
f6df245f | 1002 | set_gdbarch_max_register_raw_size (gdbarch, 4); |
584f96a8 | 1003 | set_gdbarch_register_raw_size (gdbarch, mn10300_register_raw_size); |
f6df245f | 1004 | set_gdbarch_register_byte (gdbarch, mn10300_register_byte); |
584f96a8 | 1005 | set_gdbarch_max_register_virtual_size (gdbarch, 4); |
f6df245f | 1006 | set_gdbarch_register_virtual_size (gdbarch, mn10300_register_virtual_size); |
584f96a8 | 1007 | set_gdbarch_register_virtual_type (gdbarch, mn10300_register_virtual_type); |
f6df245f | 1008 | set_gdbarch_do_registers_info (gdbarch, mn10300_do_registers_info); |
ad8fe2ce | 1009 | set_gdbarch_fp_regnum (gdbarch, 31); |
584f96a8 JB |
1010 | |
1011 | /* Breakpoints. */ | |
ad8fe2ce JB |
1012 | set_gdbarch_breakpoint_from_pc (gdbarch, mn10300_breakpoint_from_pc); |
1013 | set_gdbarch_function_start_offset (gdbarch, 0); | |
1014 | set_gdbarch_decr_pc_after_break (gdbarch, 0); | |
584f96a8 JB |
1015 | |
1016 | /* Stack unwinding. */ | |
1017 | set_gdbarch_get_saved_register (gdbarch, generic_get_saved_register); | |
1018 | set_gdbarch_frame_chain_valid (gdbarch, generic_file_frame_chain_valid); | |
ad8fe2ce JB |
1019 | set_gdbarch_inner_than (gdbarch, core_addr_lessthan); |
1020 | set_gdbarch_frame_chain_valid (gdbarch, generic_file_frame_chain_valid); | |
1021 | set_gdbarch_saved_pc_after_call (gdbarch, mn10300_saved_pc_after_call); | |
1022 | set_gdbarch_init_extra_frame_info (gdbarch, mn10300_init_extra_frame_info); | |
1023 | set_gdbarch_frame_init_saved_regs (gdbarch, mn10300_frame_init_saved_regs); | |
1024 | set_gdbarch_frame_chain (gdbarch, mn10300_frame_chain); | |
1025 | set_gdbarch_frame_saved_pc (gdbarch, mn10300_frame_saved_pc); | |
1026 | set_gdbarch_extract_return_value (gdbarch, mn10300_extract_return_value); | |
1027 | set_gdbarch_extract_struct_value_address | |
1028 | (gdbarch, mn10300_extract_struct_value_address); | |
1029 | set_gdbarch_store_return_value (gdbarch, mn10300_store_return_value); | |
1030 | set_gdbarch_store_struct_return (gdbarch, mn10300_store_struct_return); | |
ee9f9641 | 1031 | set_gdbarch_pop_frame (gdbarch, mn10300_pop_frame); |
ad8fe2ce JB |
1032 | set_gdbarch_skip_prologue (gdbarch, mn10300_skip_prologue); |
1033 | set_gdbarch_frame_args_skip (gdbarch, 0); | |
1034 | set_gdbarch_frame_args_address (gdbarch, default_frame_address); | |
1035 | set_gdbarch_frame_locals_address (gdbarch, default_frame_address); | |
1036 | set_gdbarch_frame_num_args (gdbarch, frame_num_args_unknown); | |
1037 | /* That's right, we're using the stack pointer as our frame pointer. */ | |
1038 | set_gdbarch_read_fp (gdbarch, generic_target_read_sp); | |
584f96a8 JB |
1039 | |
1040 | /* Calling functions in the inferior from GDB. */ | |
1041 | set_gdbarch_call_dummy_p (gdbarch, 1); | |
1042 | set_gdbarch_call_dummy_breakpoint_offset_p (gdbarch, 0); | |
1043 | set_gdbarch_call_dummy_stack_adjust_p (gdbarch, 0); | |
ad8fe2ce JB |
1044 | set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT); |
1045 | set_gdbarch_call_dummy_address (gdbarch, entry_point_address); | |
1046 | set_gdbarch_call_dummy_words (gdbarch, mn10300_call_dummy_words); | |
1047 | set_gdbarch_sizeof_call_dummy_words (gdbarch, | |
1048 | sizeof (mn10300_call_dummy_words)); | |
1049 | set_gdbarch_call_dummy_length (gdbarch, 0); | |
1050 | set_gdbarch_fix_call_dummy (gdbarch, generic_fix_call_dummy); | |
1051 | set_gdbarch_call_dummy_start_offset (gdbarch, 0); | |
82d983b6 | 1052 | set_gdbarch_pc_in_call_dummy (gdbarch, pc_in_call_dummy_at_entry_point); |
584f96a8 | 1053 | set_gdbarch_use_generic_dummy_frames (gdbarch, 1); |
ad8fe2ce | 1054 | set_gdbarch_push_dummy_frame (gdbarch, generic_push_dummy_frame); |
584f96a8 JB |
1055 | set_gdbarch_push_arguments (gdbarch, mn10300_push_arguments); |
1056 | set_gdbarch_reg_struct_has_addr (gdbarch, mn10300_reg_struct_has_addr); | |
1057 | set_gdbarch_push_return_address (gdbarch, mn10300_push_return_address); | |
1058 | set_gdbarch_save_dummy_frame_tos (gdbarch, generic_save_dummy_frame_tos); | |
ad8fe2ce JB |
1059 | set_gdbarch_use_struct_convention (gdbarch, mn10300_use_struct_convention); |
1060 | ||
91225883 AC |
1061 | tdep->am33_mode = am33_mode; |
1062 | ||
1063 | return gdbarch; | |
1064 | } | |
1065 | ||
c906108c | 1066 | void |
fba45db2 | 1067 | _initialize_mn10300_tdep (void) |
c906108c SS |
1068 | { |
1069 | /* printf("_initialize_mn10300_tdep\n"); */ | |
1070 | ||
1071 | tm_print_insn = print_insn_mn10300; | |
1072 | ||
91225883 | 1073 | register_gdbarch_init (bfd_arch_mn10300, mn10300_gdbarch_init); |
c906108c | 1074 | } |