Commit | Line | Data |
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342ee437 MS |
1 | /* Target-dependent code for the Matsushita MN10300 for GDB, the GNU debugger. |
2 | ||
61baf725 | 3 | Copyright (C) 1996-2017 Free Software Foundation, Inc. |
342ee437 MS |
4 | |
5 | This file is part of GDB. | |
6 | ||
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 | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
342ee437 MS |
10 | (at your option) any later version. |
11 | ||
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. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
342ee437 | 19 | |
342ee437 MS |
20 | #include "defs.h" |
21 | #include "arch-utils.h" | |
22 | #include "dis-asm.h" | |
23 | #include "gdbtypes.h" | |
24 | #include "regcache.h" | |
025bb325 | 25 | #include "gdbcore.h" /* For write_memory_unsigned_integer. */ |
342ee437 | 26 | #include "value.h" |
342ee437 MS |
27 | #include "frame.h" |
28 | #include "frame-unwind.h" | |
29 | #include "frame-base.h" | |
342ee437 MS |
30 | #include "symtab.h" |
31 | #include "dwarf2-frame.h" | |
697e3bc9 | 32 | #include "osabi.h" |
ee3a2f01 | 33 | #include "infcall.h" |
6c02c64c | 34 | #include "prologue-value.h" |
effa26a9 | 35 | #include "target.h" |
342ee437 MS |
36 | |
37 | #include "mn10300-tdep.h" | |
38 | ||
6c02c64c KB |
39 | |
40 | /* The am33-2 has 64 registers. */ | |
41 | #define MN10300_MAX_NUM_REGS 64 | |
42 | ||
43 | /* This structure holds the results of a prologue analysis. */ | |
44 | struct mn10300_prologue | |
45 | { | |
d80b854b UW |
46 | /* The architecture for which we generated this prologue info. */ |
47 | struct gdbarch *gdbarch; | |
48 | ||
6c02c64c KB |
49 | /* The offset from the frame base to the stack pointer --- always |
50 | zero or negative. | |
51 | ||
52 | Calling this a "size" is a bit misleading, but given that the | |
53 | stack grows downwards, using offsets for everything keeps one | |
54 | from going completely sign-crazy: you never change anything's | |
55 | sign for an ADD instruction; always change the second operand's | |
56 | sign for a SUB instruction; and everything takes care of | |
57 | itself. */ | |
58 | int frame_size; | |
59 | ||
60 | /* Non-zero if this function has initialized the frame pointer from | |
61 | the stack pointer, zero otherwise. */ | |
62 | int has_frame_ptr; | |
63 | ||
64 | /* If has_frame_ptr is non-zero, this is the offset from the frame | |
65 | base to where the frame pointer points. This is always zero or | |
66 | negative. */ | |
67 | int frame_ptr_offset; | |
68 | ||
69 | /* The address of the first instruction at which the frame has been | |
70 | set up and the arguments are where the debug info says they are | |
71 | --- as best as we can tell. */ | |
72 | CORE_ADDR prologue_end; | |
73 | ||
74 | /* reg_offset[R] is the offset from the CFA at which register R is | |
75 | saved, or 1 if register R has not been saved. (Real values are | |
76 | always zero or negative.) */ | |
77 | int reg_offset[MN10300_MAX_NUM_REGS]; | |
78 | }; | |
79 | ||
342ee437 MS |
80 | |
81 | /* Compute the alignment required by a type. */ | |
82 | ||
83 | static int | |
84 | mn10300_type_align (struct type *type) | |
85 | { | |
86 | int i, align = 1; | |
87 | ||
88 | switch (TYPE_CODE (type)) | |
89 | { | |
90 | case TYPE_CODE_INT: | |
91 | case TYPE_CODE_ENUM: | |
92 | case TYPE_CODE_SET: | |
93 | case TYPE_CODE_RANGE: | |
94 | case TYPE_CODE_CHAR: | |
95 | case TYPE_CODE_BOOL: | |
96 | case TYPE_CODE_FLT: | |
97 | case TYPE_CODE_PTR: | |
98 | case TYPE_CODE_REF: | |
aa006118 | 99 | case TYPE_CODE_RVALUE_REF: |
342ee437 MS |
100 | return TYPE_LENGTH (type); |
101 | ||
102 | case TYPE_CODE_COMPLEX: | |
103 | return TYPE_LENGTH (type) / 2; | |
104 | ||
105 | case TYPE_CODE_STRUCT: | |
106 | case TYPE_CODE_UNION: | |
107 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
108 | { | |
109 | int falign = mn10300_type_align (TYPE_FIELD_TYPE (type, i)); | |
110 | while (align < falign) | |
111 | align <<= 1; | |
112 | } | |
113 | return align; | |
114 | ||
115 | case TYPE_CODE_ARRAY: | |
116 | /* HACK! Structures containing arrays, even small ones, are not | |
117 | elligible for returning in registers. */ | |
118 | return 256; | |
119 | ||
120 | case TYPE_CODE_TYPEDEF: | |
121 | return mn10300_type_align (check_typedef (type)); | |
122 | ||
123 | default: | |
124 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
125 | } | |
126 | } | |
127 | ||
342ee437 | 128 | /* Should call_function allocate stack space for a struct return? */ |
342ee437 | 129 | static int |
99fe5f9d | 130 | mn10300_use_struct_convention (struct type *type) |
342ee437 MS |
131 | { |
132 | /* Structures bigger than a pair of words can't be returned in | |
133 | registers. */ | |
134 | if (TYPE_LENGTH (type) > 8) | |
135 | return 1; | |
136 | ||
137 | switch (TYPE_CODE (type)) | |
138 | { | |
139 | case TYPE_CODE_STRUCT: | |
140 | case TYPE_CODE_UNION: | |
141 | /* Structures with a single field are handled as the field | |
142 | itself. */ | |
143 | if (TYPE_NFIELDS (type) == 1) | |
99fe5f9d | 144 | return mn10300_use_struct_convention (TYPE_FIELD_TYPE (type, 0)); |
342ee437 MS |
145 | |
146 | /* Structures with word or double-word size are passed in memory, as | |
147 | long as they require at least word alignment. */ | |
148 | if (mn10300_type_align (type) >= 4) | |
149 | return 0; | |
150 | ||
151 | return 1; | |
152 | ||
153 | /* Arrays are addressable, so they're never returned in | |
154 | registers. This condition can only hold when the array is | |
155 | the only field of a struct or union. */ | |
156 | case TYPE_CODE_ARRAY: | |
157 | return 1; | |
158 | ||
159 | case TYPE_CODE_TYPEDEF: | |
99fe5f9d | 160 | return mn10300_use_struct_convention (check_typedef (type)); |
342ee437 MS |
161 | |
162 | default: | |
163 | return 0; | |
164 | } | |
165 | } | |
166 | ||
342ee437 | 167 | static void |
99fe5f9d | 168 | mn10300_store_return_value (struct gdbarch *gdbarch, struct type *type, |
948f8e3d | 169 | struct regcache *regcache, const gdb_byte *valbuf) |
342ee437 | 170 | { |
342ee437 MS |
171 | int len = TYPE_LENGTH (type); |
172 | int reg, regsz; | |
173 | ||
174 | if (TYPE_CODE (type) == TYPE_CODE_PTR) | |
175 | reg = 4; | |
176 | else | |
177 | reg = 0; | |
178 | ||
179 | regsz = register_size (gdbarch, reg); | |
180 | ||
181 | if (len <= regsz) | |
182 | regcache_raw_write_part (regcache, reg, 0, len, valbuf); | |
183 | else if (len <= 2 * regsz) | |
184 | { | |
185 | regcache_raw_write (regcache, reg, valbuf); | |
186 | gdb_assert (regsz == register_size (gdbarch, reg + 1)); | |
187 | regcache_raw_write_part (regcache, reg+1, 0, | |
948f8e3d | 188 | len - regsz, valbuf + regsz); |
342ee437 MS |
189 | } |
190 | else | |
191 | internal_error (__FILE__, __LINE__, | |
192 | _("Cannot store return value %d bytes long."), len); | |
193 | } | |
194 | ||
342ee437 | 195 | static void |
99fe5f9d | 196 | mn10300_extract_return_value (struct gdbarch *gdbarch, struct type *type, |
342ee437 MS |
197 | struct regcache *regcache, void *valbuf) |
198 | { | |
e362b510 | 199 | gdb_byte buf[MAX_REGISTER_SIZE]; |
342ee437 MS |
200 | int len = TYPE_LENGTH (type); |
201 | int reg, regsz; | |
202 | ||
203 | if (TYPE_CODE (type) == TYPE_CODE_PTR) | |
204 | reg = 4; | |
205 | else | |
206 | reg = 0; | |
207 | ||
208 | regsz = register_size (gdbarch, reg); | |
209 | if (len <= regsz) | |
210 | { | |
211 | regcache_raw_read (regcache, reg, buf); | |
212 | memcpy (valbuf, buf, len); | |
213 | } | |
214 | else if (len <= 2 * regsz) | |
215 | { | |
216 | regcache_raw_read (regcache, reg, buf); | |
217 | memcpy (valbuf, buf, regsz); | |
218 | gdb_assert (regsz == register_size (gdbarch, reg + 1)); | |
219 | regcache_raw_read (regcache, reg + 1, buf); | |
220 | memcpy ((char *) valbuf + regsz, buf, len - regsz); | |
221 | } | |
222 | else | |
223 | internal_error (__FILE__, __LINE__, | |
224 | _("Cannot extract return value %d bytes long."), len); | |
225 | } | |
226 | ||
99fe5f9d KB |
227 | /* Determine, for architecture GDBARCH, how a return value of TYPE |
228 | should be returned. If it is supposed to be returned in registers, | |
229 | and READBUF is non-zero, read the appropriate value from REGCACHE, | |
230 | and copy it into READBUF. If WRITEBUF is non-zero, write the value | |
231 | from WRITEBUF into REGCACHE. */ | |
232 | ||
233 | static enum return_value_convention | |
6a3a010b | 234 | mn10300_return_value (struct gdbarch *gdbarch, struct value *function, |
c055b101 CV |
235 | struct type *type, struct regcache *regcache, |
236 | gdb_byte *readbuf, const gdb_byte *writebuf) | |
99fe5f9d KB |
237 | { |
238 | if (mn10300_use_struct_convention (type)) | |
239 | return RETURN_VALUE_STRUCT_CONVENTION; | |
240 | ||
241 | if (readbuf) | |
242 | mn10300_extract_return_value (gdbarch, type, regcache, readbuf); | |
243 | if (writebuf) | |
244 | mn10300_store_return_value (gdbarch, type, regcache, writebuf); | |
245 | ||
246 | return RETURN_VALUE_REGISTER_CONVENTION; | |
247 | } | |
248 | ||
a121b7c1 PA |
249 | static const char * |
250 | register_name (int reg, const char **regs, long sizeof_regs) | |
342ee437 MS |
251 | { |
252 | if (reg < 0 || reg >= sizeof_regs / sizeof (regs[0])) | |
253 | return NULL; | |
254 | else | |
255 | return regs[reg]; | |
256 | } | |
257 | ||
258 | static const char * | |
d93859e2 | 259 | mn10300_generic_register_name (struct gdbarch *gdbarch, int reg) |
342ee437 | 260 | { |
a121b7c1 | 261 | static const char *regs[] = |
342ee437 MS |
262 | { "d0", "d1", "d2", "d3", "a0", "a1", "a2", "a3", |
263 | "sp", "pc", "mdr", "psw", "lir", "lar", "", "", | |
264 | "", "", "", "", "", "", "", "", | |
265 | "", "", "", "", "", "", "", "fp" | |
266 | }; | |
267 | return register_name (reg, regs, sizeof regs); | |
268 | } | |
269 | ||
270 | ||
271 | static const char * | |
d93859e2 | 272 | am33_register_name (struct gdbarch *gdbarch, int reg) |
342ee437 | 273 | { |
a121b7c1 | 274 | static const char *regs[] = |
342ee437 MS |
275 | { "d0", "d1", "d2", "d3", "a0", "a1", "a2", "a3", |
276 | "sp", "pc", "mdr", "psw", "lir", "lar", "", | |
277 | "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", | |
278 | "ssp", "msp", "usp", "mcrh", "mcrl", "mcvf", "", "", "" | |
279 | }; | |
280 | return register_name (reg, regs, sizeof regs); | |
281 | } | |
282 | ||
4640dd91 | 283 | static const char * |
d93859e2 | 284 | am33_2_register_name (struct gdbarch *gdbarch, int reg) |
4640dd91 | 285 | { |
a121b7c1 | 286 | static const char *regs[] = |
4640dd91 KB |
287 | { |
288 | "d0", "d1", "d2", "d3", "a0", "a1", "a2", "a3", | |
289 | "sp", "pc", "mdr", "psw", "lir", "lar", "mdrq", "r0", | |
290 | "r1", "r2", "r3", "r4", "r5", "r6", "r7", "ssp", | |
291 | "msp", "usp", "mcrh", "mcrl", "mcvf", "fpcr", "", "", | |
292 | "fs0", "fs1", "fs2", "fs3", "fs4", "fs5", "fs6", "fs7", | |
293 | "fs8", "fs9", "fs10", "fs11", "fs12", "fs13", "fs14", "fs15", | |
294 | "fs16", "fs17", "fs18", "fs19", "fs20", "fs21", "fs22", "fs23", | |
295 | "fs24", "fs25", "fs26", "fs27", "fs28", "fs29", "fs30", "fs31" | |
296 | }; | |
297 | return register_name (reg, regs, sizeof regs); | |
298 | } | |
342ee437 MS |
299 | |
300 | static struct type * | |
301 | mn10300_register_type (struct gdbarch *gdbarch, int reg) | |
302 | { | |
0dfff4cb | 303 | return builtin_type (gdbarch)->builtin_int; |
342ee437 MS |
304 | } |
305 | ||
306 | static CORE_ADDR | |
61a1198a | 307 | mn10300_read_pc (struct regcache *regcache) |
342ee437 | 308 | { |
61a1198a UW |
309 | ULONGEST val; |
310 | regcache_cooked_read_unsigned (regcache, E_PC_REGNUM, &val); | |
311 | return val; | |
342ee437 MS |
312 | } |
313 | ||
314 | static void | |
61a1198a | 315 | mn10300_write_pc (struct regcache *regcache, CORE_ADDR val) |
342ee437 | 316 | { |
61a1198a | 317 | regcache_cooked_write_unsigned (regcache, E_PC_REGNUM, val); |
342ee437 MS |
318 | } |
319 | ||
320 | /* The breakpoint instruction must be the same size as the smallest | |
321 | instruction in the instruction set. | |
322 | ||
323 | The Matsushita mn10x00 processors have single byte instructions | |
324 | so we need a single byte breakpoint. Matsushita hasn't defined | |
325 | one, so we defined it ourselves. */ | |
04180708 | 326 | constexpr gdb_byte mn10300_break_insn[] = {0xff}; |
342ee437 | 327 | |
04180708 | 328 | typedef BP_MANIPULATION (mn10300_break_insn) mn10300_breakpoint; |
342ee437 | 329 | |
6c02c64c KB |
330 | /* Model the semantics of pushing a register onto the stack. This |
331 | is a helper function for mn10300_analyze_prologue, below. */ | |
332 | static void | |
333 | push_reg (pv_t *regs, struct pv_area *stack, int regnum) | |
334 | { | |
335 | regs[E_SP_REGNUM] = pv_add_constant (regs[E_SP_REGNUM], -4); | |
336 | pv_area_store (stack, regs[E_SP_REGNUM], 4, regs[regnum]); | |
337 | } | |
338 | ||
339 | /* Translate an "r" register number extracted from an instruction encoding | |
340 | into a GDB register number. Adapted from a simulator function | |
341 | of the same name; see am33.igen. */ | |
342 | static int | |
343 | translate_rreg (int rreg) | |
344 | { | |
345 | /* The higher register numbers actually correspond to the | |
346 | basic machine's address and data registers. */ | |
347 | if (rreg > 7 && rreg < 12) | |
348 | return E_A0_REGNUM + rreg - 8; | |
349 | else if (rreg > 11 && rreg < 16) | |
350 | return E_D0_REGNUM + rreg - 12; | |
351 | else | |
352 | return E_E0_REGNUM + rreg; | |
353 | } | |
354 | ||
355 | /* Find saved registers in a 'struct pv_area'; we pass this to pv_area_scan. | |
9cacebf5 | 356 | |
6c02c64c KB |
357 | If VALUE is a saved register, ADDR says it was saved at a constant |
358 | offset from the frame base, and SIZE indicates that the whole | |
359 | register was saved, record its offset in RESULT_UNTYPED. */ | |
9cacebf5 | 360 | static void |
6c02c64c | 361 | check_for_saved (void *result_untyped, pv_t addr, CORE_ADDR size, pv_t value) |
9cacebf5 | 362 | { |
6c02c64c | 363 | struct mn10300_prologue *result = (struct mn10300_prologue *) result_untyped; |
9cacebf5 | 364 | |
6c02c64c KB |
365 | if (value.kind == pvk_register |
366 | && value.k == 0 | |
367 | && pv_is_register (addr, E_SP_REGNUM) | |
d80b854b | 368 | && size == register_size (result->gdbarch, value.reg)) |
6c02c64c KB |
369 | result->reg_offset[value.reg] = addr.k; |
370 | } | |
9cacebf5 | 371 | |
6c02c64c KB |
372 | /* Analyze the prologue to determine where registers are saved, |
373 | the end of the prologue, etc. The result of this analysis is | |
374 | returned in RESULT. See struct mn10300_prologue above for more | |
375 | information. */ | |
376 | static void | |
377 | mn10300_analyze_prologue (struct gdbarch *gdbarch, | |
378 | CORE_ADDR start_pc, CORE_ADDR limit_pc, | |
379 | struct mn10300_prologue *result) | |
380 | { | |
e17a4113 | 381 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
22e048c9 | 382 | CORE_ADDR pc; |
6c02c64c KB |
383 | int rn; |
384 | pv_t regs[MN10300_MAX_NUM_REGS]; | |
385 | struct pv_area *stack; | |
386 | struct cleanup *back_to; | |
387 | CORE_ADDR after_last_frame_setup_insn = start_pc; | |
388 | int am33_mode = AM33_MODE (gdbarch); | |
389 | ||
390 | memset (result, 0, sizeof (*result)); | |
d80b854b | 391 | result->gdbarch = gdbarch; |
9cacebf5 | 392 | |
6c02c64c | 393 | for (rn = 0; rn < MN10300_MAX_NUM_REGS; rn++) |
4640dd91 | 394 | { |
6c02c64c KB |
395 | regs[rn] = pv_register (rn, 0); |
396 | result->reg_offset[rn] = 1; | |
4640dd91 | 397 | } |
55f960e1 | 398 | stack = make_pv_area (E_SP_REGNUM, gdbarch_addr_bit (gdbarch)); |
6c02c64c KB |
399 | back_to = make_cleanup_free_pv_area (stack); |
400 | ||
401 | /* The typical call instruction will have saved the return address on the | |
402 | stack. Space for the return address has already been preallocated in | |
403 | the caller's frame. It's possible, such as when using -mrelax with gcc | |
404 | that other registers were saved as well. If this happens, we really | |
405 | have no chance of deciphering the frame. DWARF info can save the day | |
406 | when this happens. */ | |
407 | pv_area_store (stack, regs[E_SP_REGNUM], 4, regs[E_PC_REGNUM]); | |
408 | ||
409 | pc = start_pc; | |
410 | while (pc < limit_pc) | |
4640dd91 | 411 | { |
6c02c64c KB |
412 | int status; |
413 | gdb_byte instr[2]; | |
4640dd91 | 414 | |
6c02c64c KB |
415 | /* Instructions can be as small as one byte; however, we usually |
416 | need at least two bytes to do the decoding, so fetch that many | |
417 | to begin with. */ | |
418 | status = target_read_memory (pc, instr, 2); | |
419 | if (status != 0) | |
420 | break; | |
4640dd91 | 421 | |
6c02c64c KB |
422 | /* movm [regs], sp */ |
423 | if (instr[0] == 0xcf) | |
4640dd91 | 424 | { |
6c02c64c KB |
425 | gdb_byte save_mask; |
426 | ||
427 | save_mask = instr[1]; | |
428 | ||
429 | if ((save_mask & movm_exreg0_bit) && am33_mode) | |
430 | { | |
431 | push_reg (regs, stack, E_E2_REGNUM); | |
432 | push_reg (regs, stack, E_E3_REGNUM); | |
433 | } | |
434 | if ((save_mask & movm_exreg1_bit) && am33_mode) | |
4640dd91 | 435 | { |
6c02c64c KB |
436 | push_reg (regs, stack, E_E4_REGNUM); |
437 | push_reg (regs, stack, E_E5_REGNUM); | |
438 | push_reg (regs, stack, E_E6_REGNUM); | |
439 | push_reg (regs, stack, E_E7_REGNUM); | |
4640dd91 | 440 | } |
6c02c64c KB |
441 | if ((save_mask & movm_exother_bit) && am33_mode) |
442 | { | |
443 | push_reg (regs, stack, E_E0_REGNUM); | |
444 | push_reg (regs, stack, E_E1_REGNUM); | |
445 | push_reg (regs, stack, E_MDRQ_REGNUM); | |
446 | push_reg (regs, stack, E_MCRH_REGNUM); | |
447 | push_reg (regs, stack, E_MCRL_REGNUM); | |
448 | push_reg (regs, stack, E_MCVF_REGNUM); | |
449 | } | |
450 | if (save_mask & movm_d2_bit) | |
451 | push_reg (regs, stack, E_D2_REGNUM); | |
452 | if (save_mask & movm_d3_bit) | |
453 | push_reg (regs, stack, E_D3_REGNUM); | |
454 | if (save_mask & movm_a2_bit) | |
455 | push_reg (regs, stack, E_A2_REGNUM); | |
456 | if (save_mask & movm_a3_bit) | |
457 | push_reg (regs, stack, E_A3_REGNUM); | |
458 | if (save_mask & movm_other_bit) | |
459 | { | |
460 | push_reg (regs, stack, E_D0_REGNUM); | |
461 | push_reg (regs, stack, E_D1_REGNUM); | |
462 | push_reg (regs, stack, E_A0_REGNUM); | |
463 | push_reg (regs, stack, E_A1_REGNUM); | |
464 | push_reg (regs, stack, E_MDR_REGNUM); | |
465 | push_reg (regs, stack, E_LIR_REGNUM); | |
466 | push_reg (regs, stack, E_LAR_REGNUM); | |
467 | /* The `other' bit leaves a blank area of four bytes at | |
468 | the beginning of its block of saved registers, making | |
469 | it 32 bytes long in total. */ | |
470 | regs[E_SP_REGNUM] = pv_add_constant (regs[E_SP_REGNUM], -4); | |
471 | } | |
472 | ||
473 | pc += 2; | |
474 | after_last_frame_setup_insn = pc; | |
4640dd91 | 475 | } |
6c02c64c KB |
476 | /* mov sp, aN */ |
477 | else if ((instr[0] & 0xfc) == 0x3c) | |
478 | { | |
479 | int aN = instr[0] & 0x03; | |
4640dd91 | 480 | |
6c02c64c | 481 | regs[E_A0_REGNUM + aN] = regs[E_SP_REGNUM]; |
4640dd91 | 482 | |
6c02c64c KB |
483 | pc += 1; |
484 | if (aN == 3) | |
485 | after_last_frame_setup_insn = pc; | |
486 | } | |
487 | /* mov aM, aN */ | |
488 | else if ((instr[0] & 0xf0) == 0x90 | |
489 | && (instr[0] & 0x03) != ((instr[0] & 0x0c) >> 2)) | |
490 | { | |
491 | int aN = instr[0] & 0x03; | |
492 | int aM = (instr[0] & 0x0c) >> 2; | |
9cacebf5 | 493 | |
6c02c64c | 494 | regs[E_A0_REGNUM + aN] = regs[E_A0_REGNUM + aM]; |
9cacebf5 | 495 | |
6c02c64c KB |
496 | pc += 1; |
497 | } | |
498 | /* mov dM, dN */ | |
499 | else if ((instr[0] & 0xf0) == 0x80 | |
500 | && (instr[0] & 0x03) != ((instr[0] & 0x0c) >> 2)) | |
501 | { | |
502 | int dN = instr[0] & 0x03; | |
503 | int dM = (instr[0] & 0x0c) >> 2; | |
9cacebf5 | 504 | |
6c02c64c | 505 | regs[E_D0_REGNUM + dN] = regs[E_D0_REGNUM + dM]; |
9cacebf5 | 506 | |
6c02c64c KB |
507 | pc += 1; |
508 | } | |
509 | /* mov aM, dN */ | |
510 | else if (instr[0] == 0xf1 && (instr[1] & 0xf0) == 0xd0) | |
511 | { | |
512 | int dN = instr[1] & 0x03; | |
513 | int aM = (instr[1] & 0x0c) >> 2; | |
9cacebf5 | 514 | |
6c02c64c | 515 | regs[E_D0_REGNUM + dN] = regs[E_A0_REGNUM + aM]; |
9cacebf5 | 516 | |
6c02c64c KB |
517 | pc += 2; |
518 | } | |
519 | /* mov dM, aN */ | |
520 | else if (instr[0] == 0xf1 && (instr[1] & 0xf0) == 0xe0) | |
521 | { | |
522 | int aN = instr[1] & 0x03; | |
523 | int dM = (instr[1] & 0x0c) >> 2; | |
9cacebf5 | 524 | |
6c02c64c | 525 | regs[E_A0_REGNUM + aN] = regs[E_D0_REGNUM + dM]; |
9cacebf5 | 526 | |
6c02c64c KB |
527 | pc += 2; |
528 | } | |
529 | /* add imm8, SP */ | |
530 | else if (instr[0] == 0xf8 && instr[1] == 0xfe) | |
531 | { | |
532 | gdb_byte buf[1]; | |
533 | LONGEST imm8; | |
9cacebf5 | 534 | |
9cacebf5 | 535 | |
6c02c64c KB |
536 | status = target_read_memory (pc + 2, buf, 1); |
537 | if (status != 0) | |
538 | break; | |
9cacebf5 | 539 | |
e17a4113 | 540 | imm8 = extract_signed_integer (buf, 1, byte_order); |
6c02c64c | 541 | regs[E_SP_REGNUM] = pv_add_constant (regs[E_SP_REGNUM], imm8); |
9cacebf5 | 542 | |
6c02c64c KB |
543 | pc += 3; |
544 | /* Stack pointer adjustments are frame related. */ | |
545 | after_last_frame_setup_insn = pc; | |
546 | } | |
547 | /* add imm16, SP */ | |
548 | else if (instr[0] == 0xfa && instr[1] == 0xfe) | |
549 | { | |
550 | gdb_byte buf[2]; | |
551 | LONGEST imm16; | |
9cacebf5 | 552 | |
6c02c64c KB |
553 | status = target_read_memory (pc + 2, buf, 2); |
554 | if (status != 0) | |
555 | break; | |
9cacebf5 | 556 | |
e17a4113 | 557 | imm16 = extract_signed_integer (buf, 2, byte_order); |
6c02c64c | 558 | regs[E_SP_REGNUM] = pv_add_constant (regs[E_SP_REGNUM], imm16); |
9cacebf5 | 559 | |
6c02c64c KB |
560 | pc += 4; |
561 | /* Stack pointer adjustments are frame related. */ | |
562 | after_last_frame_setup_insn = pc; | |
563 | } | |
564 | /* add imm32, SP */ | |
565 | else if (instr[0] == 0xfc && instr[1] == 0xfe) | |
566 | { | |
567 | gdb_byte buf[4]; | |
568 | LONGEST imm32; | |
9cacebf5 | 569 | |
6c02c64c KB |
570 | status = target_read_memory (pc + 2, buf, 4); |
571 | if (status != 0) | |
572 | break; | |
9cacebf5 | 573 | |
9cacebf5 | 574 | |
e17a4113 | 575 | imm32 = extract_signed_integer (buf, 4, byte_order); |
6c02c64c | 576 | regs[E_SP_REGNUM] = pv_add_constant (regs[E_SP_REGNUM], imm32); |
9cacebf5 | 577 | |
6c02c64c KB |
578 | pc += 6; |
579 | /* Stack pointer adjustments are frame related. */ | |
580 | after_last_frame_setup_insn = pc; | |
581 | } | |
582 | /* add imm8, aN */ | |
583 | else if ((instr[0] & 0xfc) == 0x20) | |
584 | { | |
585 | int aN; | |
586 | LONGEST imm8; | |
9cacebf5 | 587 | |
6c02c64c | 588 | aN = instr[0] & 0x03; |
e17a4113 | 589 | imm8 = extract_signed_integer (&instr[1], 1, byte_order); |
9cacebf5 | 590 | |
6c02c64c KB |
591 | regs[E_A0_REGNUM + aN] = pv_add_constant (regs[E_A0_REGNUM + aN], |
592 | imm8); | |
9cacebf5 | 593 | |
6c02c64c KB |
594 | pc += 2; |
595 | } | |
596 | /* add imm16, aN */ | |
597 | else if (instr[0] == 0xfa && (instr[1] & 0xfc) == 0xd0) | |
598 | { | |
599 | int aN; | |
600 | LONGEST imm16; | |
601 | gdb_byte buf[2]; | |
9cacebf5 | 602 | |
6c02c64c | 603 | aN = instr[1] & 0x03; |
9cacebf5 | 604 | |
6c02c64c KB |
605 | status = target_read_memory (pc + 2, buf, 2); |
606 | if (status != 0) | |
607 | break; | |
9cacebf5 | 608 | |
9cacebf5 | 609 | |
e17a4113 | 610 | imm16 = extract_signed_integer (buf, 2, byte_order); |
9cacebf5 | 611 | |
6c02c64c KB |
612 | regs[E_A0_REGNUM + aN] = pv_add_constant (regs[E_A0_REGNUM + aN], |
613 | imm16); | |
9cacebf5 | 614 | |
6c02c64c KB |
615 | pc += 4; |
616 | } | |
617 | /* add imm32, aN */ | |
618 | else if (instr[0] == 0xfc && (instr[1] & 0xfc) == 0xd0) | |
619 | { | |
620 | int aN; | |
621 | LONGEST imm32; | |
622 | gdb_byte buf[4]; | |
9cacebf5 | 623 | |
6c02c64c | 624 | aN = instr[1] & 0x03; |
9cacebf5 | 625 | |
6c02c64c KB |
626 | status = target_read_memory (pc + 2, buf, 4); |
627 | if (status != 0) | |
628 | break; | |
9cacebf5 | 629 | |
e17a4113 | 630 | imm32 = extract_signed_integer (buf, 2, byte_order); |
9cacebf5 | 631 | |
6c02c64c KB |
632 | regs[E_A0_REGNUM + aN] = pv_add_constant (regs[E_A0_REGNUM + aN], |
633 | imm32); | |
634 | pc += 6; | |
635 | } | |
636 | /* fmov fsM, (rN) */ | |
637 | else if (instr[0] == 0xf9 && (instr[1] & 0xfd) == 0x30) | |
638 | { | |
639 | int fsM, sM, Y, rN; | |
640 | gdb_byte buf[1]; | |
9cacebf5 | 641 | |
6c02c64c | 642 | Y = (instr[1] & 0x02) >> 1; |
9cacebf5 | 643 | |
6c02c64c KB |
644 | status = target_read_memory (pc + 2, buf, 1); |
645 | if (status != 0) | |
646 | break; | |
9cacebf5 | 647 | |
6c02c64c KB |
648 | sM = (buf[0] & 0xf0) >> 4; |
649 | rN = buf[0] & 0x0f; | |
650 | fsM = (Y << 4) | sM; | |
9cacebf5 | 651 | |
6c02c64c KB |
652 | pv_area_store (stack, regs[translate_rreg (rN)], 4, |
653 | regs[E_FS0_REGNUM + fsM]); | |
9cacebf5 | 654 | |
6c02c64c KB |
655 | pc += 3; |
656 | } | |
657 | /* fmov fsM, (sp) */ | |
658 | else if (instr[0] == 0xf9 && (instr[1] & 0xfd) == 0x34) | |
659 | { | |
660 | int fsM, sM, Y; | |
661 | gdb_byte buf[1]; | |
9cacebf5 | 662 | |
6c02c64c | 663 | Y = (instr[1] & 0x02) >> 1; |
9cacebf5 | 664 | |
6c02c64c KB |
665 | status = target_read_memory (pc + 2, buf, 1); |
666 | if (status != 0) | |
667 | break; | |
9cacebf5 | 668 | |
6c02c64c KB |
669 | sM = (buf[0] & 0xf0) >> 4; |
670 | fsM = (Y << 4) | sM; | |
9cacebf5 | 671 | |
6c02c64c KB |
672 | pv_area_store (stack, regs[E_SP_REGNUM], 4, |
673 | regs[E_FS0_REGNUM + fsM]); | |
9cacebf5 | 674 | |
6c02c64c KB |
675 | pc += 3; |
676 | } | |
677 | /* fmov fsM, (rN, rI) */ | |
678 | else if (instr[0] == 0xfb && instr[1] == 0x37) | |
679 | { | |
680 | int fsM, sM, Z, rN, rI; | |
681 | gdb_byte buf[2]; | |
9cacebf5 | 682 | |
9cacebf5 | 683 | |
6c02c64c KB |
684 | status = target_read_memory (pc + 2, buf, 2); |
685 | if (status != 0) | |
686 | break; | |
83845630 | 687 | |
6c02c64c KB |
688 | rI = (buf[0] & 0xf0) >> 4; |
689 | rN = buf[0] & 0x0f; | |
690 | sM = (buf[1] & 0xf0) >> 4; | |
691 | Z = (buf[1] & 0x02) >> 1; | |
692 | fsM = (Z << 4) | sM; | |
83845630 | 693 | |
6c02c64c KB |
694 | pv_area_store (stack, |
695 | pv_add (regs[translate_rreg (rN)], | |
696 | regs[translate_rreg (rI)]), | |
697 | 4, regs[E_FS0_REGNUM + fsM]); | |
83845630 | 698 | |
6c02c64c KB |
699 | pc += 4; |
700 | } | |
701 | /* fmov fsM, (d8, rN) */ | |
702 | else if (instr[0] == 0xfb && (instr[1] & 0xfd) == 0x30) | |
4640dd91 | 703 | { |
6c02c64c KB |
704 | int fsM, sM, Y, rN; |
705 | LONGEST d8; | |
706 | gdb_byte buf[2]; | |
707 | ||
708 | Y = (instr[1] & 0x02) >> 1; | |
709 | ||
710 | status = target_read_memory (pc + 2, buf, 2); | |
711 | if (status != 0) | |
712 | break; | |
713 | ||
714 | sM = (buf[0] & 0xf0) >> 4; | |
715 | rN = buf[0] & 0x0f; | |
716 | fsM = (Y << 4) | sM; | |
e17a4113 | 717 | d8 = extract_signed_integer (&buf[1], 1, byte_order); |
6c02c64c KB |
718 | |
719 | pv_area_store (stack, | |
720 | pv_add_constant (regs[translate_rreg (rN)], d8), | |
721 | 4, regs[E_FS0_REGNUM + fsM]); | |
722 | ||
723 | pc += 4; | |
4640dd91 | 724 | } |
6c02c64c KB |
725 | /* fmov fsM, (d24, rN) */ |
726 | else if (instr[0] == 0xfd && (instr[1] & 0xfd) == 0x30) | |
83845630 | 727 | { |
6c02c64c KB |
728 | int fsM, sM, Y, rN; |
729 | LONGEST d24; | |
730 | gdb_byte buf[4]; | |
731 | ||
732 | Y = (instr[1] & 0x02) >> 1; | |
733 | ||
734 | status = target_read_memory (pc + 2, buf, 4); | |
83845630 | 735 | if (status != 0) |
6c02c64c KB |
736 | break; |
737 | ||
738 | sM = (buf[0] & 0xf0) >> 4; | |
739 | rN = buf[0] & 0x0f; | |
740 | fsM = (Y << 4) | sM; | |
e17a4113 | 741 | d24 = extract_signed_integer (&buf[1], 3, byte_order); |
6c02c64c KB |
742 | |
743 | pv_area_store (stack, | |
744 | pv_add_constant (regs[translate_rreg (rN)], d24), | |
745 | 4, regs[E_FS0_REGNUM + fsM]); | |
746 | ||
747 | pc += 6; | |
83845630 | 748 | } |
6c02c64c KB |
749 | /* fmov fsM, (d32, rN) */ |
750 | else if (instr[0] == 0xfe && (instr[1] & 0xfd) == 0x30) | |
751 | { | |
752 | int fsM, sM, Y, rN; | |
753 | LONGEST d32; | |
754 | gdb_byte buf[5]; | |
4640dd91 | 755 | |
6c02c64c KB |
756 | Y = (instr[1] & 0x02) >> 1; |
757 | ||
758 | status = target_read_memory (pc + 2, buf, 5); | |
759 | if (status != 0) | |
760 | break; | |
761 | ||
762 | sM = (buf[0] & 0xf0) >> 4; | |
763 | rN = buf[0] & 0x0f; | |
764 | fsM = (Y << 4) | sM; | |
e17a4113 | 765 | d32 = extract_signed_integer (&buf[1], 4, byte_order); |
9cacebf5 | 766 | |
6c02c64c KB |
767 | pv_area_store (stack, |
768 | pv_add_constant (regs[translate_rreg (rN)], d32), | |
769 | 4, regs[E_FS0_REGNUM + fsM]); | |
770 | ||
771 | pc += 7; | |
772 | } | |
773 | /* fmov fsM, (d8, SP) */ | |
774 | else if (instr[0] == 0xfb && (instr[1] & 0xfd) == 0x34) | |
9cacebf5 | 775 | { |
6c02c64c KB |
776 | int fsM, sM, Y; |
777 | LONGEST d8; | |
778 | gdb_byte buf[2]; | |
779 | ||
780 | Y = (instr[1] & 0x02) >> 1; | |
781 | ||
782 | status = target_read_memory (pc + 2, buf, 2); | |
783 | if (status != 0) | |
784 | break; | |
785 | ||
786 | sM = (buf[0] & 0xf0) >> 4; | |
787 | fsM = (Y << 4) | sM; | |
e17a4113 | 788 | d8 = extract_signed_integer (&buf[1], 1, byte_order); |
6c02c64c KB |
789 | |
790 | pv_area_store (stack, | |
791 | pv_add_constant (regs[E_SP_REGNUM], d8), | |
792 | 4, regs[E_FS0_REGNUM + fsM]); | |
793 | ||
794 | pc += 4; | |
9cacebf5 | 795 | } |
6c02c64c KB |
796 | /* fmov fsM, (d24, SP) */ |
797 | else if (instr[0] == 0xfd && (instr[1] & 0xfd) == 0x34) | |
798 | { | |
799 | int fsM, sM, Y; | |
800 | LONGEST d24; | |
801 | gdb_byte buf[4]; | |
9cacebf5 | 802 | |
6c02c64c | 803 | Y = (instr[1] & 0x02) >> 1; |
9cacebf5 | 804 | |
6c02c64c KB |
805 | status = target_read_memory (pc + 2, buf, 4); |
806 | if (status != 0) | |
807 | break; | |
9cacebf5 | 808 | |
6c02c64c KB |
809 | sM = (buf[0] & 0xf0) >> 4; |
810 | fsM = (Y << 4) | sM; | |
e17a4113 | 811 | d24 = extract_signed_integer (&buf[1], 3, byte_order); |
9cacebf5 | 812 | |
6c02c64c KB |
813 | pv_area_store (stack, |
814 | pv_add_constant (regs[E_SP_REGNUM], d24), | |
815 | 4, regs[E_FS0_REGNUM + fsM]); | |
9cacebf5 | 816 | |
6c02c64c KB |
817 | pc += 6; |
818 | } | |
819 | /* fmov fsM, (d32, SP) */ | |
820 | else if (instr[0] == 0xfe && (instr[1] & 0xfd) == 0x34) | |
821 | { | |
822 | int fsM, sM, Y; | |
823 | LONGEST d32; | |
824 | gdb_byte buf[5]; | |
9cacebf5 | 825 | |
6c02c64c | 826 | Y = (instr[1] & 0x02) >> 1; |
9cacebf5 | 827 | |
6c02c64c KB |
828 | status = target_read_memory (pc + 2, buf, 5); |
829 | if (status != 0) | |
830 | break; | |
831 | ||
832 | sM = (buf[0] & 0xf0) >> 4; | |
833 | fsM = (Y << 4) | sM; | |
e17a4113 | 834 | d32 = extract_signed_integer (&buf[1], 4, byte_order); |
6c02c64c KB |
835 | |
836 | pv_area_store (stack, | |
837 | pv_add_constant (regs[E_SP_REGNUM], d32), | |
838 | 4, regs[E_FS0_REGNUM + fsM]); | |
839 | ||
840 | pc += 7; | |
841 | } | |
842 | /* fmov fsM, (rN+) */ | |
843 | else if (instr[0] == 0xf9 && (instr[1] & 0xfd) == 0x31) | |
844 | { | |
845 | int fsM, sM, Y, rN, rN_regnum; | |
846 | gdb_byte buf[1]; | |
847 | ||
848 | Y = (instr[1] & 0x02) >> 1; | |
849 | ||
850 | status = target_read_memory (pc + 2, buf, 1); | |
851 | if (status != 0) | |
852 | break; | |
853 | ||
854 | sM = (buf[0] & 0xf0) >> 4; | |
855 | rN = buf[0] & 0x0f; | |
856 | fsM = (Y << 4) | sM; | |
857 | ||
858 | rN_regnum = translate_rreg (rN); | |
859 | ||
860 | pv_area_store (stack, regs[rN_regnum], 4, | |
861 | regs[E_FS0_REGNUM + fsM]); | |
862 | regs[rN_regnum] = pv_add_constant (regs[rN_regnum], 4); | |
863 | ||
864 | pc += 3; | |
865 | } | |
866 | /* fmov fsM, (rN+, imm8) */ | |
867 | else if (instr[0] == 0xfb && (instr[1] & 0xfd) == 0x31) | |
868 | { | |
869 | int fsM, sM, Y, rN, rN_regnum; | |
870 | LONGEST imm8; | |
871 | gdb_byte buf[2]; | |
872 | ||
873 | Y = (instr[1] & 0x02) >> 1; | |
874 | ||
875 | status = target_read_memory (pc + 2, buf, 2); | |
876 | if (status != 0) | |
877 | break; | |
878 | ||
879 | sM = (buf[0] & 0xf0) >> 4; | |
880 | rN = buf[0] & 0x0f; | |
881 | fsM = (Y << 4) | sM; | |
e17a4113 | 882 | imm8 = extract_signed_integer (&buf[1], 1, byte_order); |
6c02c64c KB |
883 | |
884 | rN_regnum = translate_rreg (rN); | |
885 | ||
886 | pv_area_store (stack, regs[rN_regnum], 4, regs[E_FS0_REGNUM + fsM]); | |
887 | regs[rN_regnum] = pv_add_constant (regs[rN_regnum], imm8); | |
888 | ||
889 | pc += 4; | |
890 | } | |
891 | /* fmov fsM, (rN+, imm24) */ | |
892 | else if (instr[0] == 0xfd && (instr[1] & 0xfd) == 0x31) | |
893 | { | |
894 | int fsM, sM, Y, rN, rN_regnum; | |
895 | LONGEST imm24; | |
896 | gdb_byte buf[4]; | |
897 | ||
898 | Y = (instr[1] & 0x02) >> 1; | |
899 | ||
900 | status = target_read_memory (pc + 2, buf, 4); | |
901 | if (status != 0) | |
902 | break; | |
903 | ||
904 | sM = (buf[0] & 0xf0) >> 4; | |
905 | rN = buf[0] & 0x0f; | |
906 | fsM = (Y << 4) | sM; | |
e17a4113 | 907 | imm24 = extract_signed_integer (&buf[1], 3, byte_order); |
6c02c64c KB |
908 | |
909 | rN_regnum = translate_rreg (rN); | |
910 | ||
911 | pv_area_store (stack, regs[rN_regnum], 4, regs[E_FS0_REGNUM + fsM]); | |
912 | regs[rN_regnum] = pv_add_constant (regs[rN_regnum], imm24); | |
913 | ||
914 | pc += 6; | |
915 | } | |
916 | /* fmov fsM, (rN+, imm32) */ | |
917 | else if (instr[0] == 0xfe && (instr[1] & 0xfd) == 0x31) | |
918 | { | |
919 | int fsM, sM, Y, rN, rN_regnum; | |
920 | LONGEST imm32; | |
921 | gdb_byte buf[5]; | |
922 | ||
923 | Y = (instr[1] & 0x02) >> 1; | |
924 | ||
925 | status = target_read_memory (pc + 2, buf, 5); | |
926 | if (status != 0) | |
927 | break; | |
928 | ||
929 | sM = (buf[0] & 0xf0) >> 4; | |
930 | rN = buf[0] & 0x0f; | |
931 | fsM = (Y << 4) | sM; | |
e17a4113 | 932 | imm32 = extract_signed_integer (&buf[1], 4, byte_order); |
6c02c64c KB |
933 | |
934 | rN_regnum = translate_rreg (rN); | |
935 | ||
936 | pv_area_store (stack, regs[rN_regnum], 4, regs[E_FS0_REGNUM + fsM]); | |
937 | regs[rN_regnum] = pv_add_constant (regs[rN_regnum], imm32); | |
938 | ||
939 | pc += 7; | |
940 | } | |
941 | /* mov imm8, aN */ | |
942 | else if ((instr[0] & 0xf0) == 0x90) | |
943 | { | |
944 | int aN = instr[0] & 0x03; | |
945 | LONGEST imm8; | |
9cacebf5 | 946 | |
e17a4113 | 947 | imm8 = extract_signed_integer (&instr[1], 1, byte_order); |
9cacebf5 | 948 | |
6c02c64c KB |
949 | regs[E_A0_REGNUM + aN] = pv_constant (imm8); |
950 | pc += 2; | |
951 | } | |
952 | /* mov imm16, aN */ | |
953 | else if ((instr[0] & 0xfc) == 0x24) | |
954 | { | |
955 | int aN = instr[0] & 0x03; | |
956 | gdb_byte buf[2]; | |
957 | LONGEST imm16; | |
958 | ||
959 | status = target_read_memory (pc + 1, buf, 2); | |
960 | if (status != 0) | |
961 | break; | |
962 | ||
e17a4113 | 963 | imm16 = extract_signed_integer (buf, 2, byte_order); |
6c02c64c KB |
964 | regs[E_A0_REGNUM + aN] = pv_constant (imm16); |
965 | pc += 3; | |
966 | } | |
967 | /* mov imm32, aN */ | |
968 | else if (instr[0] == 0xfc && ((instr[1] & 0xfc) == 0xdc)) | |
969 | { | |
970 | int aN = instr[1] & 0x03; | |
971 | gdb_byte buf[4]; | |
972 | LONGEST imm32; | |
973 | ||
974 | status = target_read_memory (pc + 2, buf, 4); | |
975 | if (status != 0) | |
976 | break; | |
977 | ||
e17a4113 | 978 | imm32 = extract_signed_integer (buf, 4, byte_order); |
6c02c64c KB |
979 | regs[E_A0_REGNUM + aN] = pv_constant (imm32); |
980 | pc += 6; | |
981 | } | |
982 | /* mov imm8, dN */ | |
983 | else if ((instr[0] & 0xf0) == 0x80) | |
984 | { | |
985 | int dN = instr[0] & 0x03; | |
986 | LONGEST imm8; | |
987 | ||
e17a4113 | 988 | imm8 = extract_signed_integer (&instr[1], 1, byte_order); |
6c02c64c KB |
989 | |
990 | regs[E_D0_REGNUM + dN] = pv_constant (imm8); | |
991 | pc += 2; | |
992 | } | |
993 | /* mov imm16, dN */ | |
994 | else if ((instr[0] & 0xfc) == 0x2c) | |
995 | { | |
996 | int dN = instr[0] & 0x03; | |
997 | gdb_byte buf[2]; | |
998 | LONGEST imm16; | |
999 | ||
1000 | status = target_read_memory (pc + 1, buf, 2); | |
1001 | if (status != 0) | |
1002 | break; | |
1003 | ||
e17a4113 | 1004 | imm16 = extract_signed_integer (buf, 2, byte_order); |
6c02c64c KB |
1005 | regs[E_D0_REGNUM + dN] = pv_constant (imm16); |
1006 | pc += 3; | |
1007 | } | |
1008 | /* mov imm32, dN */ | |
1009 | else if (instr[0] == 0xfc && ((instr[1] & 0xfc) == 0xcc)) | |
1010 | { | |
1011 | int dN = instr[1] & 0x03; | |
1012 | gdb_byte buf[4]; | |
1013 | LONGEST imm32; | |
1014 | ||
1015 | status = target_read_memory (pc + 2, buf, 4); | |
1016 | if (status != 0) | |
1017 | break; | |
1018 | ||
e17a4113 | 1019 | imm32 = extract_signed_integer (buf, 4, byte_order); |
6c02c64c KB |
1020 | regs[E_D0_REGNUM + dN] = pv_constant (imm32); |
1021 | pc += 6; | |
1022 | } | |
1023 | else | |
1024 | { | |
1025 | /* We've hit some instruction that we don't recognize. Hopefully, | |
1026 | we have enough to do prologue analysis. */ | |
1027 | break; | |
1028 | } | |
1029 | } | |
1030 | ||
1031 | /* Is the frame size (offset, really) a known constant? */ | |
1032 | if (pv_is_register (regs[E_SP_REGNUM], E_SP_REGNUM)) | |
1033 | result->frame_size = regs[E_SP_REGNUM].k; | |
9cacebf5 | 1034 | |
6c02c64c KB |
1035 | /* Was the frame pointer initialized? */ |
1036 | if (pv_is_register (regs[E_A3_REGNUM], E_SP_REGNUM)) | |
1037 | { | |
1038 | result->has_frame_ptr = 1; | |
1039 | result->frame_ptr_offset = regs[E_A3_REGNUM].k; | |
9cacebf5 | 1040 | } |
6c02c64c KB |
1041 | |
1042 | /* Record where all the registers were saved. */ | |
1043 | pv_area_scan (stack, check_for_saved, (void *) result); | |
1044 | ||
1045 | result->prologue_end = after_last_frame_setup_insn; | |
1046 | ||
1047 | do_cleanups (back_to); | |
9cacebf5 MS |
1048 | } |
1049 | ||
342ee437 MS |
1050 | /* Function: skip_prologue |
1051 | Return the address of the first inst past the prologue of the function. */ | |
1052 | ||
1053 | static CORE_ADDR | |
6093d2eb | 1054 | mn10300_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc) |
342ee437 | 1055 | { |
2c02bd72 | 1056 | const char *name; |
6c02c64c KB |
1057 | CORE_ADDR func_addr, func_end; |
1058 | struct mn10300_prologue p; | |
1059 | ||
1060 | /* Try to find the extent of the function that contains PC. */ | |
1061 | if (!find_pc_partial_function (pc, &name, &func_addr, &func_end)) | |
1062 | return pc; | |
1063 | ||
1064 | mn10300_analyze_prologue (gdbarch, pc, func_end, &p); | |
1065 | return p.prologue_end; | |
342ee437 MS |
1066 | } |
1067 | ||
6c02c64c KB |
1068 | /* Wrapper for mn10300_analyze_prologue: find the function start; |
1069 | use the current frame PC as the limit, then | |
1070 | invoke mn10300_analyze_prologue and return its result. */ | |
1071 | static struct mn10300_prologue * | |
1072 | mn10300_analyze_frame_prologue (struct frame_info *this_frame, | |
1073 | void **this_prologue_cache) | |
342ee437 | 1074 | { |
6c02c64c | 1075 | if (!*this_prologue_cache) |
93d42b30 | 1076 | { |
6c02c64c KB |
1077 | CORE_ADDR func_start, stop_addr; |
1078 | ||
1079 | *this_prologue_cache = FRAME_OBSTACK_ZALLOC (struct mn10300_prologue); | |
1080 | ||
1081 | func_start = get_frame_func (this_frame); | |
1082 | stop_addr = get_frame_pc (this_frame); | |
1083 | ||
1084 | /* If we couldn't find any function containing the PC, then | |
1085 | just initialize the prologue cache, but don't do anything. */ | |
1086 | if (!func_start) | |
1087 | stop_addr = func_start; | |
1088 | ||
1089 | mn10300_analyze_prologue (get_frame_arch (this_frame), | |
19ba03f4 SM |
1090 | func_start, stop_addr, |
1091 | ((struct mn10300_prologue *) | |
1092 | *this_prologue_cache)); | |
93d42b30 | 1093 | } |
342ee437 | 1094 | |
19ba03f4 | 1095 | return (struct mn10300_prologue *) *this_prologue_cache; |
6c02c64c KB |
1096 | } |
1097 | ||
1098 | /* Given the next frame and a prologue cache, return this frame's | |
1099 | base. */ | |
1100 | static CORE_ADDR | |
1101 | mn10300_frame_base (struct frame_info *this_frame, void **this_prologue_cache) | |
1102 | { | |
1103 | struct mn10300_prologue *p | |
1104 | = mn10300_analyze_frame_prologue (this_frame, this_prologue_cache); | |
1105 | ||
1106 | /* In functions that use alloca, the distance between the stack | |
1107 | pointer and the frame base varies dynamically, so we can't use | |
1108 | the SP plus static information like prologue analysis to find the | |
1109 | frame base. However, such functions must have a frame pointer, | |
1110 | to be able to restore the SP on exit. So whenever we do have a | |
1111 | frame pointer, use that to find the base. */ | |
1112 | if (p->has_frame_ptr) | |
1113 | { | |
1114 | CORE_ADDR fp = get_frame_register_unsigned (this_frame, E_A3_REGNUM); | |
1115 | return fp - p->frame_ptr_offset; | |
1116 | } | |
1117 | else | |
1118 | { | |
1119 | CORE_ADDR sp = get_frame_register_unsigned (this_frame, E_SP_REGNUM); | |
1120 | return sp - p->frame_size; | |
1121 | } | |
342ee437 MS |
1122 | } |
1123 | ||
1124 | /* Here is a dummy implementation. */ | |
1125 | static struct frame_id | |
94afd7a6 | 1126 | mn10300_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame) |
342ee437 | 1127 | { |
94afd7a6 UW |
1128 | CORE_ADDR sp = get_frame_register_unsigned (this_frame, E_SP_REGNUM); |
1129 | CORE_ADDR pc = get_frame_register_unsigned (this_frame, E_PC_REGNUM); | |
1130 | return frame_id_build (sp, pc); | |
342ee437 MS |
1131 | } |
1132 | ||
342ee437 | 1133 | static void |
94afd7a6 | 1134 | mn10300_frame_this_id (struct frame_info *this_frame, |
342ee437 MS |
1135 | void **this_prologue_cache, |
1136 | struct frame_id *this_id) | |
1137 | { | |
025bb325 MS |
1138 | *this_id = frame_id_build (mn10300_frame_base (this_frame, |
1139 | this_prologue_cache), | |
6c02c64c | 1140 | get_frame_func (this_frame)); |
342ee437 | 1141 | |
342ee437 MS |
1142 | } |
1143 | ||
94afd7a6 UW |
1144 | static struct value * |
1145 | mn10300_frame_prev_register (struct frame_info *this_frame, | |
6c02c64c | 1146 | void **this_prologue_cache, int regnum) |
342ee437 | 1147 | { |
6c02c64c KB |
1148 | struct mn10300_prologue *p |
1149 | = mn10300_analyze_frame_prologue (this_frame, this_prologue_cache); | |
1150 | CORE_ADDR frame_base = mn10300_frame_base (this_frame, this_prologue_cache); | |
6c02c64c KB |
1151 | |
1152 | if (regnum == E_SP_REGNUM) | |
1153 | return frame_unwind_got_constant (this_frame, regnum, frame_base); | |
1154 | ||
1155 | /* If prologue analysis says we saved this register somewhere, | |
1156 | return a description of the stack slot holding it. */ | |
1157 | if (p->reg_offset[regnum] != 1) | |
1158 | return frame_unwind_got_memory (this_frame, regnum, | |
1159 | frame_base + p->reg_offset[regnum]); | |
1160 | ||
1161 | /* Otherwise, presume we haven't changed the value of this | |
1162 | register, and get it from the next frame. */ | |
1163 | return frame_unwind_got_register (this_frame, regnum, regnum); | |
342ee437 MS |
1164 | } |
1165 | ||
1166 | static const struct frame_unwind mn10300_frame_unwind = { | |
1167 | NORMAL_FRAME, | |
8fbca658 | 1168 | default_frame_unwind_stop_reason, |
342ee437 | 1169 | mn10300_frame_this_id, |
94afd7a6 UW |
1170 | mn10300_frame_prev_register, |
1171 | NULL, | |
1172 | default_frame_sniffer | |
342ee437 MS |
1173 | }; |
1174 | ||
1175 | static CORE_ADDR | |
6c02c64c | 1176 | mn10300_unwind_pc (struct gdbarch *gdbarch, struct frame_info *this_frame) |
342ee437 MS |
1177 | { |
1178 | ULONGEST pc; | |
1179 | ||
6c02c64c | 1180 | pc = frame_unwind_register_unsigned (this_frame, E_PC_REGNUM); |
342ee437 MS |
1181 | return pc; |
1182 | } | |
1183 | ||
1184 | static CORE_ADDR | |
6c02c64c | 1185 | mn10300_unwind_sp (struct gdbarch *gdbarch, struct frame_info *this_frame) |
342ee437 MS |
1186 | { |
1187 | ULONGEST sp; | |
1188 | ||
6c02c64c | 1189 | sp = frame_unwind_register_unsigned (this_frame, E_SP_REGNUM); |
342ee437 MS |
1190 | return sp; |
1191 | } | |
1192 | ||
1193 | static void | |
1194 | mn10300_frame_unwind_init (struct gdbarch *gdbarch) | |
1195 | { | |
94afd7a6 UW |
1196 | dwarf2_append_unwinders (gdbarch); |
1197 | frame_unwind_append_unwinder (gdbarch, &mn10300_frame_unwind); | |
94afd7a6 | 1198 | set_gdbarch_dummy_id (gdbarch, mn10300_dummy_id); |
342ee437 MS |
1199 | set_gdbarch_unwind_pc (gdbarch, mn10300_unwind_pc); |
1200 | set_gdbarch_unwind_sp (gdbarch, mn10300_unwind_sp); | |
1201 | } | |
1202 | ||
1203 | /* Function: push_dummy_call | |
1204 | * | |
1205 | * Set up machine state for a target call, including | |
1206 | * function arguments, stack, return address, etc. | |
1207 | * | |
1208 | */ | |
1209 | ||
1210 | static CORE_ADDR | |
1211 | mn10300_push_dummy_call (struct gdbarch *gdbarch, | |
1212 | struct value *target_func, | |
1213 | struct regcache *regcache, | |
1214 | CORE_ADDR bp_addr, | |
1215 | int nargs, struct value **args, | |
1216 | CORE_ADDR sp, | |
1217 | int struct_return, | |
1218 | CORE_ADDR struct_addr) | |
1219 | { | |
e17a4113 | 1220 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
342ee437 | 1221 | const int push_size = register_size (gdbarch, E_PC_REGNUM); |
1fb1ca27 | 1222 | int regs_used; |
342ee437 MS |
1223 | int len, arg_len; |
1224 | int stack_offset = 0; | |
1225 | int argnum; | |
948f8e3d PA |
1226 | const gdb_byte *val; |
1227 | gdb_byte valbuf[MAX_REGISTER_SIZE]; | |
342ee437 | 1228 | |
342ee437 MS |
1229 | /* This should be a nop, but align the stack just in case something |
1230 | went wrong. Stacks are four byte aligned on the mn10300. */ | |
1231 | sp &= ~3; | |
1232 | ||
1233 | /* Now make space on the stack for the args. | |
1234 | ||
1235 | XXX This doesn't appear to handle pass-by-invisible reference | |
1236 | arguments. */ | |
1fb1ca27 | 1237 | regs_used = struct_return ? 1 : 0; |
342ee437 MS |
1238 | for (len = 0, argnum = 0; argnum < nargs; argnum++) |
1239 | { | |
1240 | arg_len = (TYPE_LENGTH (value_type (args[argnum])) + 3) & ~3; | |
342ee437 MS |
1241 | while (regs_used < 2 && arg_len > 0) |
1242 | { | |
1243 | regs_used++; | |
1244 | arg_len -= push_size; | |
1245 | } | |
1246 | len += arg_len; | |
1247 | } | |
1248 | ||
1249 | /* Allocate stack space. */ | |
1250 | sp -= len; | |
1251 | ||
1fb1ca27 MS |
1252 | if (struct_return) |
1253 | { | |
1254 | regs_used = 1; | |
9c9acae0 | 1255 | regcache_cooked_write_unsigned (regcache, E_D0_REGNUM, struct_addr); |
1fb1ca27 MS |
1256 | } |
1257 | else | |
1258 | regs_used = 0; | |
1259 | ||
025bb325 | 1260 | /* Push all arguments onto the stack. */ |
342ee437 MS |
1261 | for (argnum = 0; argnum < nargs; argnum++) |
1262 | { | |
1fb1ca27 MS |
1263 | /* FIXME what about structs? Unions? */ |
1264 | if (TYPE_CODE (value_type (*args)) == TYPE_CODE_STRUCT | |
1265 | && TYPE_LENGTH (value_type (*args)) > 8) | |
1266 | { | |
1267 | /* Change to pointer-to-type. */ | |
1268 | arg_len = push_size; | |
e17a4113 | 1269 | store_unsigned_integer (valbuf, push_size, byte_order, |
42ae5230 | 1270 | value_address (*args)); |
1fb1ca27 MS |
1271 | val = &valbuf[0]; |
1272 | } | |
1273 | else | |
1274 | { | |
1275 | arg_len = TYPE_LENGTH (value_type (*args)); | |
948f8e3d | 1276 | val = value_contents (*args); |
1fb1ca27 | 1277 | } |
342ee437 MS |
1278 | |
1279 | while (regs_used < 2 && arg_len > 0) | |
1280 | { | |
9c9acae0 | 1281 | regcache_cooked_write_unsigned (regcache, regs_used, |
e17a4113 | 1282 | extract_unsigned_integer (val, push_size, byte_order)); |
342ee437 MS |
1283 | val += push_size; |
1284 | arg_len -= push_size; | |
1285 | regs_used++; | |
1286 | } | |
1287 | ||
1288 | while (arg_len > 0) | |
1289 | { | |
1290 | write_memory (sp + stack_offset, val, push_size); | |
1291 | arg_len -= push_size; | |
1292 | val += push_size; | |
1293 | stack_offset += push_size; | |
1294 | } | |
1295 | ||
1296 | args++; | |
1297 | } | |
1298 | ||
1299 | /* Make space for the flushback area. */ | |
1300 | sp -= 8; | |
1301 | ||
1302 | /* Push the return address that contains the magic breakpoint. */ | |
1303 | sp -= 4; | |
e17a4113 | 1304 | write_memory_unsigned_integer (sp, push_size, byte_order, bp_addr); |
a64ae7e0 CV |
1305 | |
1306 | /* The CPU also writes the return address always into the | |
1307 | MDR register on "call". */ | |
1308 | regcache_cooked_write_unsigned (regcache, E_MDR_REGNUM, bp_addr); | |
1309 | ||
342ee437 MS |
1310 | /* Update $sp. */ |
1311 | regcache_cooked_write_unsigned (regcache, E_SP_REGNUM, sp); | |
ee3a2f01 KB |
1312 | |
1313 | /* On the mn10300, it's possible to move some of the stack adjustment | |
1314 | and saving of the caller-save registers out of the prologue and | |
1315 | into the call sites. (When using gcc, this optimization can | |
1316 | occur when using the -mrelax switch.) If this occurs, the dwarf2 | |
1317 | info will reflect this fact. We can test to see if this is the | |
1318 | case by creating a new frame using the current stack pointer and | |
1319 | the address of the function that we're about to call. We then | |
1320 | unwind SP and see if it's different than the SP of our newly | |
1321 | created frame. If the SP values are the same, the caller is not | |
1322 | expected to allocate any additional stack. On the other hand, if | |
1323 | the SP values are different, the difference determines the | |
1324 | additional stack that must be allocated. | |
1325 | ||
1326 | Note that we don't update the return value though because that's | |
1327 | the value of the stack just after pushing the arguments, but prior | |
1328 | to performing the call. This value is needed in order to | |
025bb325 | 1329 | construct the frame ID of the dummy call. */ |
ee3a2f01 KB |
1330 | { |
1331 | CORE_ADDR func_addr = find_function_addr (target_func, NULL); | |
1332 | CORE_ADDR unwound_sp | |
1333 | = mn10300_unwind_sp (gdbarch, create_new_frame (sp, func_addr)); | |
1334 | if (sp != unwound_sp) | |
1335 | regcache_cooked_write_unsigned (regcache, E_SP_REGNUM, | |
1336 | sp - (unwound_sp - sp)); | |
1337 | } | |
1338 | ||
342ee437 MS |
1339 | return sp; |
1340 | } | |
1341 | ||
336c28c5 KB |
1342 | /* If DWARF2 is a register number appearing in Dwarf2 debug info, then |
1343 | mn10300_dwarf2_reg_to_regnum (DWARF2) is the corresponding GDB | |
1344 | register number. Why don't Dwarf2 and GDB use the same numbering? | |
1345 | Who knows? But since people have object files lying around with | |
1346 | the existing Dwarf2 numbering, and other people have written stubs | |
1347 | to work with the existing GDB, neither of them can change. So we | |
1348 | just have to cope. */ | |
1349 | static int | |
be8626e0 | 1350 | mn10300_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2) |
336c28c5 | 1351 | { |
c9f4d572 | 1352 | /* This table is supposed to be shaped like the gdbarch_register_name |
336c28c5 KB |
1353 | initializer in gcc/config/mn10300/mn10300.h. Registers which |
1354 | appear in GCC's numbering, but have no counterpart in GDB's | |
1355 | world, are marked with a -1. */ | |
1356 | static int dwarf2_to_gdb[] = { | |
c5bb7362 KB |
1357 | E_D0_REGNUM, E_D1_REGNUM, E_D2_REGNUM, E_D3_REGNUM, |
1358 | E_A0_REGNUM, E_A1_REGNUM, E_A2_REGNUM, E_A3_REGNUM, | |
1359 | -1, E_SP_REGNUM, | |
1360 | ||
1361 | E_E0_REGNUM, E_E1_REGNUM, E_E2_REGNUM, E_E3_REGNUM, | |
1362 | E_E4_REGNUM, E_E5_REGNUM, E_E6_REGNUM, E_E7_REGNUM, | |
1363 | ||
1364 | E_FS0_REGNUM + 0, E_FS0_REGNUM + 1, E_FS0_REGNUM + 2, E_FS0_REGNUM + 3, | |
1365 | E_FS0_REGNUM + 4, E_FS0_REGNUM + 5, E_FS0_REGNUM + 6, E_FS0_REGNUM + 7, | |
1366 | ||
1367 | E_FS0_REGNUM + 8, E_FS0_REGNUM + 9, E_FS0_REGNUM + 10, E_FS0_REGNUM + 11, | |
1368 | E_FS0_REGNUM + 12, E_FS0_REGNUM + 13, E_FS0_REGNUM + 14, E_FS0_REGNUM + 15, | |
1369 | ||
1370 | E_FS0_REGNUM + 16, E_FS0_REGNUM + 17, E_FS0_REGNUM + 18, E_FS0_REGNUM + 19, | |
1371 | E_FS0_REGNUM + 20, E_FS0_REGNUM + 21, E_FS0_REGNUM + 22, E_FS0_REGNUM + 23, | |
1372 | ||
1373 | E_FS0_REGNUM + 24, E_FS0_REGNUM + 25, E_FS0_REGNUM + 26, E_FS0_REGNUM + 27, | |
1374 | E_FS0_REGNUM + 28, E_FS0_REGNUM + 29, E_FS0_REGNUM + 30, E_FS0_REGNUM + 31, | |
1375 | ||
1376 | E_MDR_REGNUM, E_PSW_REGNUM, E_PC_REGNUM | |
336c28c5 KB |
1377 | }; |
1378 | ||
1379 | if (dwarf2 < 0 | |
bbc1a784 | 1380 | || dwarf2 >= ARRAY_SIZE (dwarf2_to_gdb)) |
0fde2c53 | 1381 | return -1; |
336c28c5 KB |
1382 | |
1383 | return dwarf2_to_gdb[dwarf2]; | |
1384 | } | |
342ee437 MS |
1385 | |
1386 | static struct gdbarch * | |
1387 | mn10300_gdbarch_init (struct gdbarch_info info, | |
1388 | struct gdbarch_list *arches) | |
1389 | { | |
1390 | struct gdbarch *gdbarch; | |
1391 | struct gdbarch_tdep *tdep; | |
4640dd91 | 1392 | int num_regs; |
342ee437 MS |
1393 | |
1394 | arches = gdbarch_list_lookup_by_info (arches, &info); | |
1395 | if (arches != NULL) | |
1396 | return arches->gdbarch; | |
1397 | ||
8d749320 | 1398 | tdep = XNEW (struct gdbarch_tdep); |
342ee437 MS |
1399 | gdbarch = gdbarch_alloc (&info, tdep); |
1400 | ||
1401 | switch (info.bfd_arch_info->mach) | |
1402 | { | |
1403 | case 0: | |
1404 | case bfd_mach_mn10300: | |
1405 | set_gdbarch_register_name (gdbarch, mn10300_generic_register_name); | |
1406 | tdep->am33_mode = 0; | |
4640dd91 | 1407 | num_regs = 32; |
342ee437 MS |
1408 | break; |
1409 | case bfd_mach_am33: | |
1410 | set_gdbarch_register_name (gdbarch, am33_register_name); | |
1411 | tdep->am33_mode = 1; | |
4640dd91 KB |
1412 | num_regs = 32; |
1413 | break; | |
1414 | case bfd_mach_am33_2: | |
1415 | set_gdbarch_register_name (gdbarch, am33_2_register_name); | |
1416 | tdep->am33_mode = 2; | |
1417 | num_regs = 64; | |
1418 | set_gdbarch_fp0_regnum (gdbarch, 32); | |
342ee437 MS |
1419 | break; |
1420 | default: | |
1421 | internal_error (__FILE__, __LINE__, | |
1422 | _("mn10300_gdbarch_init: Unknown mn10300 variant")); | |
1423 | break; | |
1424 | } | |
1425 | ||
1b31f75d KB |
1426 | /* By default, chars are unsigned. */ |
1427 | set_gdbarch_char_signed (gdbarch, 0); | |
1428 | ||
342ee437 | 1429 | /* Registers. */ |
4640dd91 | 1430 | set_gdbarch_num_regs (gdbarch, num_regs); |
342ee437 MS |
1431 | set_gdbarch_register_type (gdbarch, mn10300_register_type); |
1432 | set_gdbarch_skip_prologue (gdbarch, mn10300_skip_prologue); | |
1433 | set_gdbarch_read_pc (gdbarch, mn10300_read_pc); | |
1434 | set_gdbarch_write_pc (gdbarch, mn10300_write_pc); | |
1435 | set_gdbarch_pc_regnum (gdbarch, E_PC_REGNUM); | |
1436 | set_gdbarch_sp_regnum (gdbarch, E_SP_REGNUM); | |
336c28c5 | 1437 | set_gdbarch_dwarf2_reg_to_regnum (gdbarch, mn10300_dwarf2_reg_to_regnum); |
342ee437 MS |
1438 | |
1439 | /* Stack unwinding. */ | |
1440 | set_gdbarch_inner_than (gdbarch, core_addr_lessthan); | |
1441 | /* Breakpoints. */ | |
04180708 YQ |
1442 | set_gdbarch_breakpoint_kind_from_pc (gdbarch, |
1443 | mn10300_breakpoint::kind_from_pc); | |
1444 | set_gdbarch_sw_breakpoint_from_kind (gdbarch, | |
1445 | mn10300_breakpoint::bp_from_kind); | |
025bb325 | 1446 | /* decr_pc_after_break? */ |
342ee437 MS |
1447 | /* Disassembly. */ |
1448 | set_gdbarch_print_insn (gdbarch, print_insn_mn10300); | |
1449 | ||
1450 | /* Stage 2 */ | |
99fe5f9d | 1451 | set_gdbarch_return_value (gdbarch, mn10300_return_value); |
342ee437 MS |
1452 | |
1453 | /* Stage 3 -- get target calls working. */ | |
1454 | set_gdbarch_push_dummy_call (gdbarch, mn10300_push_dummy_call); | |
1455 | /* set_gdbarch_return_value (store, extract) */ | |
1456 | ||
1457 | ||
1458 | mn10300_frame_unwind_init (gdbarch); | |
1459 | ||
697e3bc9 KB |
1460 | /* Hook in ABI-specific overrides, if they have been registered. */ |
1461 | gdbarch_init_osabi (info, gdbarch); | |
1462 | ||
342ee437 MS |
1463 | return gdbarch; |
1464 | } | |
1465 | ||
025bb325 | 1466 | /* Dump out the mn10300 specific architecture information. */ |
342ee437 MS |
1467 | |
1468 | static void | |
d93859e2 | 1469 | mn10300_dump_tdep (struct gdbarch *gdbarch, struct ui_file *file) |
342ee437 | 1470 | { |
d93859e2 | 1471 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
342ee437 MS |
1472 | fprintf_unfiltered (file, "mn10300_dump_tdep: am33_mode = %d\n", |
1473 | tdep->am33_mode); | |
1474 | } | |
1475 | ||
63807e1d PA |
1476 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
1477 | extern initialize_file_ftype _initialize_mn10300_tdep; | |
1478 | ||
342ee437 MS |
1479 | void |
1480 | _initialize_mn10300_tdep (void) | |
1481 | { | |
1482 | gdbarch_register (bfd_arch_mn10300, mn10300_gdbarch_init, mn10300_dump_tdep); | |
1483 | } | |
1484 |