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3fbeef0b AC |
1 | /* OBSOLETE /* Target-dependent code for Mitsubishi D30V, for GDB. */ |
2 | /* OBSOLETE */ | |
3 | /* OBSOLETE Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002 Free Software */ | |
4 | /* OBSOLETE Foundation, Inc. */ | |
5 | /* OBSOLETE */ | |
6 | /* OBSOLETE This file is part of GDB. */ | |
7 | /* OBSOLETE */ | |
8 | /* OBSOLETE This program is free software; you can redistribute it and/or modify */ | |
9 | /* OBSOLETE it under the terms of the GNU General Public License as published by */ | |
10 | /* OBSOLETE the Free Software Foundation; either version 2 of the License, or */ | |
11 | /* OBSOLETE (at your option) any later version. */ | |
12 | /* OBSOLETE */ | |
13 | /* OBSOLETE This program is distributed in the hope that it will be useful, */ | |
14 | /* OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of */ | |
15 | /* OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ | |
16 | /* OBSOLETE GNU General Public License for more details. */ | |
17 | /* OBSOLETE */ | |
18 | /* OBSOLETE You should have received a copy of the GNU General Public License */ | |
19 | /* OBSOLETE along with this program; if not, write to the Free Software */ | |
20 | /* OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, */ | |
21 | /* OBSOLETE Boston, MA 02111-1307, USA. */ */ | |
22 | /* OBSOLETE */ | |
23 | /* OBSOLETE /* Contributed by Martin Hunt, hunt@cygnus.com */ */ | |
24 | /* OBSOLETE */ | |
25 | /* OBSOLETE #include "defs.h" */ | |
26 | /* OBSOLETE #include "frame.h" */ | |
27 | /* OBSOLETE #include "obstack.h" */ | |
28 | /* OBSOLETE #include "symtab.h" */ | |
29 | /* OBSOLETE #include "gdbtypes.h" */ | |
30 | /* OBSOLETE #include "gdbcmd.h" */ | |
31 | /* OBSOLETE #include "gdbcore.h" */ | |
32 | /* OBSOLETE #include "gdb_string.h" */ | |
33 | /* OBSOLETE #include "value.h" */ | |
34 | /* OBSOLETE #include "inferior.h" */ | |
35 | /* OBSOLETE #include "dis-asm.h" */ | |
36 | /* OBSOLETE #include "symfile.h" */ | |
37 | /* OBSOLETE #include "objfiles.h" */ | |
38 | /* OBSOLETE #include "regcache.h" */ | |
39 | /* OBSOLETE */ | |
40 | /* OBSOLETE #include "language.h" /* For local_hex_string() */ */ | |
41 | /* OBSOLETE */ | |
42 | /* OBSOLETE void d30v_frame_find_saved_regs (struct frame_info *fi, */ | |
43 | /* OBSOLETE struct frame_saved_regs *fsr); */ | |
44 | /* OBSOLETE void d30v_frame_find_saved_regs_offsets (struct frame_info *fi, */ | |
45 | /* OBSOLETE struct frame_saved_regs *fsr); */ | |
46 | /* OBSOLETE static void d30v_pop_dummy_frame (struct frame_info *fi); */ | |
47 | /* OBSOLETE static void d30v_print_flags (void); */ | |
48 | /* OBSOLETE static void print_flags_command (char *, int); */ | |
49 | /* OBSOLETE */ | |
50 | /* OBSOLETE /* the following defines assume: */ | |
51 | /* OBSOLETE fp is r61, lr is r62, sp is r63, and ?? is r22 */ | |
52 | /* OBSOLETE if that changes, they will need to be updated */ */ | |
53 | /* OBSOLETE */ | |
54 | /* OBSOLETE #define OP_MASK_ALL_BUT_RA 0x0ffc0fff /* throw away Ra, keep the rest */ */ | |
55 | /* OBSOLETE */ | |
56 | /* OBSOLETE #define OP_STW_SPM 0x054c0fc0 /* stw Ra, @(sp-) */ */ | |
57 | /* OBSOLETE #define OP_STW_SP_R0 0x05400fc0 /* stw Ra, @(sp,r0) */ */ | |
58 | /* OBSOLETE #define OP_STW_SP_IMM0 0x05480fc0 /* st Ra, @(sp, 0x0) */ */ | |
59 | /* OBSOLETE #define OP_STW_R22P_R0 0x05440580 /* stw Ra, @(r22+,r0) */ */ | |
60 | /* OBSOLETE */ | |
61 | /* OBSOLETE #define OP_ST2W_SPM 0x056c0fc0 /* st2w Ra, @(sp-) */ */ | |
62 | /* OBSOLETE #define OP_ST2W_SP_R0 0x05600fc0 /* st2w Ra, @(sp, r0) */ */ | |
63 | /* OBSOLETE #define OP_ST2W_SP_IMM0 0x05680fc0 /* st2w Ra, @(sp, 0x0) */ */ | |
64 | /* OBSOLETE #define OP_ST2W_R22P_R0 0x05640580 /* st2w Ra, @(r22+, r0) */ */ | |
65 | /* OBSOLETE */ | |
66 | /* OBSOLETE #define OP_MASK_OPCODE 0x0ffc0000 /* just the opcode, ign operands */ */ | |
67 | /* OBSOLETE #define OP_NOP 0x00f00000 /* nop */ */ | |
68 | /* OBSOLETE */ | |
69 | /* OBSOLETE #define OP_MASK_ALL_BUT_IMM 0x0fffffc0 /* throw away imm, keep the rest */ */ | |
70 | /* OBSOLETE #define OP_SUB_SP_IMM 0x082bffc0 /* sub sp,sp,imm */ */ | |
71 | /* OBSOLETE #define OP_ADD_SP_IMM 0x080bffc0 /* add sp,sp,imm */ */ | |
72 | /* OBSOLETE #define OP_ADD_R22_SP_IMM 0x08096fc0 /* add r22,sp,imm */ */ | |
73 | /* OBSOLETE #define OP_STW_FP_SP_IMM 0x054bdfc0 /* stw fp,@(sp,imm) */ */ | |
74 | /* OBSOLETE #define OP_OR_SP_R0_IMM 0x03abf000 /* or sp,r0,imm */ */ | |
75 | /* OBSOLETE */ | |
76 | /* OBSOLETE /* no mask */ */ | |
77 | /* OBSOLETE #define OP_OR_FP_R0_SP 0x03a3d03f /* or fp,r0,sp */ */ | |
78 | /* OBSOLETE #define OP_OR_FP_SP_R0 0x03a3dfc0 /* or fp,sp,r0 */ */ | |
79 | /* OBSOLETE #define OP_OR_FP_IMM0_SP 0x03abd03f /* or fp,0x0,sp */ */ | |
80 | /* OBSOLETE #define OP_STW_FP_R22P_R0 0x0547d580 /* stw fp,@(r22+,r0) */ */ | |
81 | /* OBSOLETE #define OP_STW_LR_R22P_R0 0x0547e580 /* stw lr,@(r22+,r0) */ */ | |
82 | /* OBSOLETE */ | |
83 | /* OBSOLETE #define OP_MASK_OP_AND_RB 0x0ff80fc0 /* keep op and rb,throw away rest */ */ | |
84 | /* OBSOLETE #define OP_STW_SP_IMM 0x05480fc0 /* stw Ra,@(sp,imm) */ */ | |
85 | /* OBSOLETE #define OP_ST2W_SP_IMM 0x05680fc0 /* st2w Ra,@(sp,imm) */ */ | |
86 | /* OBSOLETE #define OP_STW_FP_IMM 0x05480f40 /* stw Ra,@(fp,imm) */ */ | |
87 | /* OBSOLETE #define OP_STW_FP_R0 0x05400f40 /* stw Ra,@(fp,r0) */ */ | |
88 | /* OBSOLETE */ | |
89 | /* OBSOLETE #define OP_MASK_FM_BIT 0x80000000 */ | |
90 | /* OBSOLETE #define OP_MASK_CC_BITS 0x70000000 */ | |
91 | /* OBSOLETE #define OP_MASK_SUB_INST 0x0fffffff */ | |
92 | /* OBSOLETE */ | |
93 | /* OBSOLETE #define EXTRACT_RA(op) (((op) >> 12) & 0x3f) */ | |
94 | /* OBSOLETE #define EXTRACT_RB(op) (((op) >> 6) & 0x3f) */ | |
95 | /* OBSOLETE #define EXTRACT_RC(op) (((op) & 0x3f) */ | |
96 | /* OBSOLETE #define EXTRACT_UIMM6(op) ((op) & 0x3f) */ | |
97 | /* OBSOLETE #define EXTRACT_IMM6(op) ((((int)EXTRACT_UIMM6(op)) << 26) >> 26) */ | |
98 | /* OBSOLETE #define EXTRACT_IMM26(op) ((((op)&0x0ff00000) >> 2) | ((op)&0x0003ffff)) */ | |
99 | /* OBSOLETE #define EXTRACT_IMM32(opl, opr) ((EXTRACT_UIMM6(opl) << 26)|EXTRACT_IMM26(opr)) */ | |
100 | /* OBSOLETE */ | |
101 | /* OBSOLETE */ | |
102 | /* OBSOLETE int */ | |
103 | /* OBSOLETE d30v_frame_chain_valid (CORE_ADDR chain, struct frame_info *fi) */ | |
104 | /* OBSOLETE { */ | |
105 | /* OBSOLETE #if 0 */ | |
106 | /* OBSOLETE return ((chain) != 0 && (fi) != 0 && (fi)->return_pc != 0); */ | |
107 | /* OBSOLETE #else */ | |
108 | /* OBSOLETE return ((chain) != 0 && (fi) != 0 && (fi)->frame <= chain); */ | |
109 | /* OBSOLETE #endif */ | |
110 | /* OBSOLETE } */ | |
111 | /* OBSOLETE */ | |
112 | /* OBSOLETE /* Discard from the stack the innermost frame, restoring all saved */ | |
113 | /* OBSOLETE registers. */ */ | |
114 | /* OBSOLETE */ | |
115 | /* OBSOLETE void */ | |
116 | /* OBSOLETE d30v_pop_frame (void) */ | |
117 | /* OBSOLETE { */ | |
118 | /* OBSOLETE struct frame_info *frame = get_current_frame (); */ | |
119 | /* OBSOLETE CORE_ADDR fp; */ | |
120 | /* OBSOLETE int regnum; */ | |
121 | /* OBSOLETE struct frame_saved_regs fsr; */ | |
122 | /* OBSOLETE char raw_buffer[8]; */ | |
123 | /* OBSOLETE */ | |
124 | /* OBSOLETE fp = FRAME_FP (frame); */ | |
125 | /* OBSOLETE if (frame->dummy) */ | |
126 | /* OBSOLETE { */ | |
127 | /* OBSOLETE d30v_pop_dummy_frame (frame); */ | |
128 | /* OBSOLETE return; */ | |
129 | /* OBSOLETE } */ | |
130 | /* OBSOLETE */ | |
131 | /* OBSOLETE /* fill out fsr with the address of where each */ */ | |
132 | /* OBSOLETE /* register was stored in the frame */ */ | |
133 | /* OBSOLETE get_frame_saved_regs (frame, &fsr); */ | |
134 | /* OBSOLETE */ | |
135 | /* OBSOLETE /* now update the current registers with the old values */ */ | |
136 | /* OBSOLETE for (regnum = A0_REGNUM; regnum < A0_REGNUM + 2; regnum++) */ | |
137 | /* OBSOLETE { */ | |
138 | /* OBSOLETE if (fsr.regs[regnum]) */ | |
139 | /* OBSOLETE { */ | |
140 | /* OBSOLETE read_memory (fsr.regs[regnum], raw_buffer, 8); */ | |
141 | /* OBSOLETE write_register_bytes (REGISTER_BYTE (regnum), raw_buffer, 8); */ | |
142 | /* OBSOLETE } */ | |
143 | /* OBSOLETE } */ | |
144 | /* OBSOLETE for (regnum = 0; regnum < SP_REGNUM; regnum++) */ | |
145 | /* OBSOLETE { */ | |
146 | /* OBSOLETE if (fsr.regs[regnum]) */ | |
147 | /* OBSOLETE { */ | |
148 | /* OBSOLETE write_register (regnum, read_memory_unsigned_integer (fsr.regs[regnum], 4)); */ | |
149 | /* OBSOLETE } */ | |
150 | /* OBSOLETE } */ | |
151 | /* OBSOLETE if (fsr.regs[PSW_REGNUM]) */ | |
152 | /* OBSOLETE { */ | |
153 | /* OBSOLETE write_register (PSW_REGNUM, read_memory_unsigned_integer (fsr.regs[PSW_REGNUM], 4)); */ | |
154 | /* OBSOLETE } */ | |
155 | /* OBSOLETE */ | |
156 | /* OBSOLETE write_register (PC_REGNUM, read_register (LR_REGNUM)); */ | |
157 | /* OBSOLETE write_register (SP_REGNUM, fp + frame->size); */ | |
158 | /* OBSOLETE target_store_registers (-1); */ | |
159 | /* OBSOLETE flush_cached_frames (); */ | |
160 | /* OBSOLETE } */ | |
161 | /* OBSOLETE */ | |
162 | /* OBSOLETE static int */ | |
163 | /* OBSOLETE check_prologue (unsigned long op) */ | |
164 | /* OBSOLETE { */ | |
165 | /* OBSOLETE /* add sp,sp,imm -- observed */ */ | |
166 | /* OBSOLETE if ((op & OP_MASK_ALL_BUT_IMM) == OP_ADD_SP_IMM) */ | |
167 | /* OBSOLETE return 1; */ | |
168 | /* OBSOLETE */ | |
169 | /* OBSOLETE /* add r22,sp,imm -- observed */ */ | |
170 | /* OBSOLETE if ((op & OP_MASK_ALL_BUT_IMM) == OP_ADD_R22_SP_IMM) */ | |
171 | /* OBSOLETE return 1; */ | |
172 | /* OBSOLETE */ | |
173 | /* OBSOLETE /* or fp,r0,sp -- observed */ */ | |
174 | /* OBSOLETE if (op == OP_OR_FP_R0_SP) */ | |
175 | /* OBSOLETE return 1; */ | |
176 | /* OBSOLETE */ | |
177 | /* OBSOLETE /* nop */ */ | |
178 | /* OBSOLETE if ((op & OP_MASK_OPCODE) == OP_NOP) */ | |
179 | /* OBSOLETE return 1; */ | |
180 | /* OBSOLETE */ | |
181 | /* OBSOLETE /* stw Ra,@(sp,r0) */ */ | |
182 | /* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_STW_SP_R0) */ | |
183 | /* OBSOLETE return 1; */ | |
184 | /* OBSOLETE */ | |
185 | /* OBSOLETE /* stw Ra,@(sp,0x0) */ */ | |
186 | /* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_STW_SP_IMM0) */ | |
187 | /* OBSOLETE return 1; */ | |
188 | /* OBSOLETE */ | |
189 | /* OBSOLETE /* st2w Ra,@(sp,r0) */ */ | |
190 | /* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_SP_R0) */ | |
191 | /* OBSOLETE return 1; */ | |
192 | /* OBSOLETE */ | |
193 | /* OBSOLETE /* st2w Ra,@(sp,0x0) */ */ | |
194 | /* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_SP_IMM0) */ | |
195 | /* OBSOLETE return 1; */ | |
196 | /* OBSOLETE */ | |
197 | /* OBSOLETE /* stw fp, @(r22+,r0) -- observed */ */ | |
198 | /* OBSOLETE if (op == OP_STW_FP_R22P_R0) */ | |
199 | /* OBSOLETE return 1; */ | |
200 | /* OBSOLETE */ | |
201 | /* OBSOLETE /* stw r62, @(r22+,r0) -- observed */ */ | |
202 | /* OBSOLETE if (op == OP_STW_LR_R22P_R0) */ | |
203 | /* OBSOLETE return 1; */ | |
204 | /* OBSOLETE */ | |
205 | /* OBSOLETE /* stw Ra, @(fp,r0) -- observed */ */ | |
206 | /* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_STW_FP_R0) */ | |
207 | /* OBSOLETE return 1; /* first arg */ */ | |
208 | /* OBSOLETE */ | |
209 | /* OBSOLETE /* stw Ra, @(fp,imm) -- observed */ */ | |
210 | /* OBSOLETE if ((op & OP_MASK_OP_AND_RB) == OP_STW_FP_IMM) */ | |
211 | /* OBSOLETE return 1; /* second and subsequent args */ */ | |
212 | /* OBSOLETE */ | |
213 | /* OBSOLETE /* stw fp,@(sp,imm) -- observed */ */ | |
214 | /* OBSOLETE if ((op & OP_MASK_ALL_BUT_IMM) == OP_STW_FP_SP_IMM) */ | |
215 | /* OBSOLETE return 1; */ | |
216 | /* OBSOLETE */ | |
217 | /* OBSOLETE /* st2w Ra,@(r22+,r0) */ */ | |
218 | /* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_R22P_R0) */ | |
219 | /* OBSOLETE return 1; */ | |
220 | /* OBSOLETE */ | |
221 | /* OBSOLETE /* stw Ra, @(sp-) */ */ | |
222 | /* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_STW_SPM) */ | |
223 | /* OBSOLETE return 1; */ | |
224 | /* OBSOLETE */ | |
225 | /* OBSOLETE /* st2w Ra, @(sp-) */ */ | |
226 | /* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_SPM) */ | |
227 | /* OBSOLETE return 1; */ | |
228 | /* OBSOLETE */ | |
229 | /* OBSOLETE /* sub.? sp,sp,imm */ */ | |
230 | /* OBSOLETE if ((op & OP_MASK_ALL_BUT_IMM) == OP_SUB_SP_IMM) */ | |
231 | /* OBSOLETE return 1; */ | |
232 | /* OBSOLETE */ | |
233 | /* OBSOLETE return 0; */ | |
234 | /* OBSOLETE } */ | |
235 | /* OBSOLETE */ | |
236 | /* OBSOLETE CORE_ADDR */ | |
237 | /* OBSOLETE d30v_skip_prologue (CORE_ADDR pc) */ | |
238 | /* OBSOLETE { */ | |
239 | /* OBSOLETE unsigned long op[2]; */ | |
240 | /* OBSOLETE unsigned long opl, opr; /* left / right sub operations */ */ | |
241 | /* OBSOLETE unsigned long fm0, fm1; /* left / right mode bits */ */ | |
242 | /* OBSOLETE unsigned long cc0, cc1; */ | |
243 | /* OBSOLETE unsigned long op1, op2; */ | |
244 | /* OBSOLETE CORE_ADDR func_addr, func_end; */ | |
245 | /* OBSOLETE struct symtab_and_line sal; */ | |
246 | /* OBSOLETE */ | |
247 | /* OBSOLETE /* If we have line debugging information, then the end of the */ */ | |
248 | /* OBSOLETE /* prologue should the first assembly instruction of the first source line */ */ | |
249 | /* OBSOLETE if (find_pc_partial_function (pc, NULL, &func_addr, &func_end)) */ | |
250 | /* OBSOLETE { */ | |
251 | /* OBSOLETE sal = find_pc_line (func_addr, 0); */ | |
252 | /* OBSOLETE if (sal.end && sal.end < func_end) */ | |
253 | /* OBSOLETE return sal.end; */ | |
254 | /* OBSOLETE } */ | |
255 | /* OBSOLETE */ | |
256 | /* OBSOLETE if (target_read_memory (pc, (char *) &op[0], 8)) */ | |
257 | /* OBSOLETE return pc; /* Can't access it -- assume no prologue. */ */ | |
258 | /* OBSOLETE */ | |
259 | /* OBSOLETE while (1) */ | |
260 | /* OBSOLETE { */ | |
261 | /* OBSOLETE opl = (unsigned long) read_memory_integer (pc, 4); */ | |
262 | /* OBSOLETE opr = (unsigned long) read_memory_integer (pc + 4, 4); */ | |
263 | /* OBSOLETE */ | |
264 | /* OBSOLETE fm0 = (opl & OP_MASK_FM_BIT); */ | |
265 | /* OBSOLETE fm1 = (opr & OP_MASK_FM_BIT); */ | |
266 | /* OBSOLETE */ | |
267 | /* OBSOLETE cc0 = (opl & OP_MASK_CC_BITS); */ | |
268 | /* OBSOLETE cc1 = (opr & OP_MASK_CC_BITS); */ | |
269 | /* OBSOLETE */ | |
270 | /* OBSOLETE opl = (opl & OP_MASK_SUB_INST); */ | |
271 | /* OBSOLETE opr = (opr & OP_MASK_SUB_INST); */ | |
272 | /* OBSOLETE */ | |
273 | /* OBSOLETE if (fm0 && fm1) */ | |
274 | /* OBSOLETE { */ | |
275 | /* OBSOLETE /* long instruction (opl contains the opcode) */ */ | |
276 | /* OBSOLETE if (((opl & OP_MASK_ALL_BUT_IMM) != OP_ADD_SP_IMM) && /* add sp,sp,imm */ */ | |
277 | /* OBSOLETE ((opl & OP_MASK_ALL_BUT_IMM) != OP_ADD_R22_SP_IMM) && /* add r22,sp,imm */ */ | |
278 | /* OBSOLETE ((opl & OP_MASK_OP_AND_RB) != OP_STW_SP_IMM) && /* stw Ra, @(sp,imm) */ */ | |
279 | /* OBSOLETE ((opl & OP_MASK_OP_AND_RB) != OP_ST2W_SP_IMM)) /* st2w Ra, @(sp,imm) */ */ | |
280 | /* OBSOLETE break; */ | |
281 | /* OBSOLETE } */ | |
282 | /* OBSOLETE else */ | |
283 | /* OBSOLETE { */ | |
284 | /* OBSOLETE /* short instructions */ */ | |
285 | /* OBSOLETE if (fm0 && !fm1) */ | |
286 | /* OBSOLETE { */ | |
287 | /* OBSOLETE op1 = opr; */ | |
288 | /* OBSOLETE op2 = opl; */ | |
289 | /* OBSOLETE } */ | |
290 | /* OBSOLETE else */ | |
291 | /* OBSOLETE { */ | |
292 | /* OBSOLETE op1 = opl; */ | |
293 | /* OBSOLETE op2 = opr; */ | |
294 | /* OBSOLETE } */ | |
295 | /* OBSOLETE if (check_prologue (op1)) */ | |
296 | /* OBSOLETE { */ | |
297 | /* OBSOLETE if (!check_prologue (op2)) */ | |
298 | /* OBSOLETE { */ | |
299 | /* OBSOLETE /* if the previous opcode was really part of the prologue */ */ | |
300 | /* OBSOLETE /* and not just a NOP, then we want to break after both instructions */ */ | |
301 | /* OBSOLETE if ((op1 & OP_MASK_OPCODE) != OP_NOP) */ | |
302 | /* OBSOLETE pc += 8; */ | |
303 | /* OBSOLETE break; */ | |
304 | /* OBSOLETE } */ | |
305 | /* OBSOLETE } */ | |
306 | /* OBSOLETE else */ | |
307 | /* OBSOLETE break; */ | |
308 | /* OBSOLETE } */ | |
309 | /* OBSOLETE pc += 8; */ | |
310 | /* OBSOLETE } */ | |
311 | /* OBSOLETE return pc; */ | |
312 | /* OBSOLETE } */ | |
313 | /* OBSOLETE */ | |
314 | /* OBSOLETE static int end_of_stack; */ | |
315 | /* OBSOLETE */ | |
316 | /* OBSOLETE /* Given a GDB frame, determine the address of the calling function's frame. */ | |
317 | /* OBSOLETE This will be used to create a new GDB frame struct, and then */ | |
318 | /* OBSOLETE INIT_EXTRA_FRAME_INFO and INIT_FRAME_PC will be called for the new frame. */ | |
319 | /* OBSOLETE */ */ | |
320 | /* OBSOLETE */ | |
321 | /* OBSOLETE CORE_ADDR */ | |
322 | /* OBSOLETE d30v_frame_chain (struct frame_info *frame) */ | |
323 | /* OBSOLETE { */ | |
324 | /* OBSOLETE struct frame_saved_regs fsr; */ | |
325 | /* OBSOLETE */ | |
326 | /* OBSOLETE d30v_frame_find_saved_regs (frame, &fsr); */ | |
327 | /* OBSOLETE */ | |
328 | /* OBSOLETE if (end_of_stack) */ | |
329 | /* OBSOLETE return (CORE_ADDR) 0; */ | |
330 | /* OBSOLETE */ | |
331 | /* OBSOLETE if (frame->return_pc == IMEM_START) */ | |
332 | /* OBSOLETE return (CORE_ADDR) 0; */ | |
333 | /* OBSOLETE */ | |
334 | /* OBSOLETE if (!fsr.regs[FP_REGNUM]) */ | |
335 | /* OBSOLETE { */ | |
336 | /* OBSOLETE if (!fsr.regs[SP_REGNUM] || fsr.regs[SP_REGNUM] == STACK_START) */ | |
337 | /* OBSOLETE return (CORE_ADDR) 0; */ | |
338 | /* OBSOLETE */ | |
339 | /* OBSOLETE return fsr.regs[SP_REGNUM]; */ | |
340 | /* OBSOLETE } */ | |
341 | /* OBSOLETE */ | |
342 | /* OBSOLETE if (!read_memory_unsigned_integer (fsr.regs[FP_REGNUM], 4)) */ | |
343 | /* OBSOLETE return (CORE_ADDR) 0; */ | |
344 | /* OBSOLETE */ | |
345 | /* OBSOLETE return read_memory_unsigned_integer (fsr.regs[FP_REGNUM], 4); */ | |
346 | /* OBSOLETE } */ | |
347 | /* OBSOLETE */ | |
348 | /* OBSOLETE static int next_addr, uses_frame; */ | |
349 | /* OBSOLETE static int frame_size; */ | |
350 | /* OBSOLETE */ | |
351 | /* OBSOLETE static int */ | |
352 | /* OBSOLETE prologue_find_regs (unsigned long op, struct frame_saved_regs *fsr, */ | |
353 | /* OBSOLETE CORE_ADDR addr) */ | |
354 | /* OBSOLETE { */ | |
355 | /* OBSOLETE int n; */ | |
356 | /* OBSOLETE int offset; */ | |
357 | /* OBSOLETE */ | |
358 | /* OBSOLETE /* add sp,sp,imm -- observed */ */ | |
359 | /* OBSOLETE if ((op & OP_MASK_ALL_BUT_IMM) == OP_ADD_SP_IMM) */ | |
360 | /* OBSOLETE { */ | |
361 | /* OBSOLETE offset = EXTRACT_IMM6 (op); */ | |
362 | /* OBSOLETE /*next_addr += offset; */ */ | |
363 | /* OBSOLETE frame_size += -offset; */ | |
364 | /* OBSOLETE return 1; */ | |
365 | /* OBSOLETE } */ | |
366 | /* OBSOLETE */ | |
367 | /* OBSOLETE /* add r22,sp,imm -- observed */ */ | |
368 | /* OBSOLETE if ((op & OP_MASK_ALL_BUT_IMM) == OP_ADD_R22_SP_IMM) */ | |
369 | /* OBSOLETE { */ | |
370 | /* OBSOLETE offset = EXTRACT_IMM6 (op); */ | |
371 | /* OBSOLETE next_addr = (offset - frame_size); */ | |
372 | /* OBSOLETE return 1; */ | |
373 | /* OBSOLETE } */ | |
374 | /* OBSOLETE */ | |
375 | /* OBSOLETE /* stw Ra, @(fp, offset) -- observed */ */ | |
376 | /* OBSOLETE if ((op & OP_MASK_OP_AND_RB) == OP_STW_FP_IMM) */ | |
377 | /* OBSOLETE { */ | |
378 | /* OBSOLETE n = EXTRACT_RA (op); */ | |
379 | /* OBSOLETE offset = EXTRACT_IMM6 (op); */ | |
380 | /* OBSOLETE fsr->regs[n] = (offset - frame_size); */ | |
381 | /* OBSOLETE return 1; */ | |
382 | /* OBSOLETE } */ | |
383 | /* OBSOLETE */ | |
384 | /* OBSOLETE /* stw Ra, @(fp, r0) -- observed */ */ | |
385 | /* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_STW_FP_R0) */ | |
386 | /* OBSOLETE { */ | |
387 | /* OBSOLETE n = EXTRACT_RA (op); */ | |
388 | /* OBSOLETE fsr->regs[n] = (-frame_size); */ | |
389 | /* OBSOLETE return 1; */ | |
390 | /* OBSOLETE } */ | |
391 | /* OBSOLETE */ | |
392 | /* OBSOLETE /* or fp,0,sp -- observed */ */ | |
393 | /* OBSOLETE if ((op == OP_OR_FP_R0_SP) || */ | |
394 | /* OBSOLETE (op == OP_OR_FP_SP_R0) || */ | |
395 | /* OBSOLETE (op == OP_OR_FP_IMM0_SP)) */ | |
396 | /* OBSOLETE { */ | |
397 | /* OBSOLETE uses_frame = 1; */ | |
398 | /* OBSOLETE return 1; */ | |
399 | /* OBSOLETE } */ | |
400 | /* OBSOLETE */ | |
401 | /* OBSOLETE /* nop */ */ | |
402 | /* OBSOLETE if ((op & OP_MASK_OPCODE) == OP_NOP) */ | |
403 | /* OBSOLETE return 1; */ | |
404 | /* OBSOLETE */ | |
405 | /* OBSOLETE /* stw Ra,@(r22+,r0) -- observed */ */ | |
406 | /* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_STW_R22P_R0) */ | |
407 | /* OBSOLETE { */ | |
408 | /* OBSOLETE n = EXTRACT_RA (op); */ | |
409 | /* OBSOLETE fsr->regs[n] = next_addr; */ | |
410 | /* OBSOLETE next_addr += 4; */ | |
411 | /* OBSOLETE return 1; */ | |
412 | /* OBSOLETE } */ | |
413 | /* OBSOLETE #if 0 /* subsumed in pattern above */ */ | |
414 | /* OBSOLETE /* stw fp,@(r22+,r0) -- observed */ */ | |
415 | /* OBSOLETE if (op == OP_STW_FP_R22P_R0) */ | |
416 | /* OBSOLETE { */ | |
417 | /* OBSOLETE fsr->regs[FP_REGNUM] = next_addr; /* XXX */ */ | |
418 | /* OBSOLETE next_addr += 4; */ | |
419 | /* OBSOLETE return 1; */ | |
420 | /* OBSOLETE } */ | |
421 | /* OBSOLETE */ | |
422 | /* OBSOLETE /* stw r62,@(r22+,r0) -- observed */ */ | |
423 | /* OBSOLETE if (op == OP_STW_LR_R22P_R0) */ | |
424 | /* OBSOLETE { */ | |
425 | /* OBSOLETE fsr->regs[LR_REGNUM] = next_addr; */ | |
426 | /* OBSOLETE next_addr += 4; */ | |
427 | /* OBSOLETE return 1; */ | |
428 | /* OBSOLETE } */ | |
429 | /* OBSOLETE #endif */ | |
430 | /* OBSOLETE /* st2w Ra,@(r22+,r0) -- observed */ */ | |
431 | /* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_R22P_R0) */ | |
432 | /* OBSOLETE { */ | |
433 | /* OBSOLETE n = EXTRACT_RA (op); */ | |
434 | /* OBSOLETE fsr->regs[n] = next_addr; */ | |
435 | /* OBSOLETE fsr->regs[n + 1] = next_addr + 4; */ | |
436 | /* OBSOLETE next_addr += 8; */ | |
437 | /* OBSOLETE return 1; */ | |
438 | /* OBSOLETE } */ | |
439 | /* OBSOLETE */ | |
440 | /* OBSOLETE /* stw rn, @(sp-) */ */ | |
441 | /* OBSOLETE if ((op & OP_MASK_ALL_BUT_RA) == OP_STW_SPM) */ | |
442 | /* OBSOLETE { */ | |
443 | /* OBSOLETE n = EXTRACT_RA (op); */ | |
444 | /* OBSOLETE fsr->regs[n] = next_addr; */ | |
445 | /* OBSOLETE next_addr -= 4; */ | |
446 | /* OBSOLETE return 1; */ | |
447 | /* OBSOLETE } */ | |
448 | /* OBSOLETE */ | |
449 | /* OBSOLETE /* st2w Ra, @(sp-) */ */ | |
450 | /* OBSOLETE else if ((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_SPM) */ | |
451 | /* OBSOLETE { */ | |
452 | /* OBSOLETE n = EXTRACT_RA (op); */ | |
453 | /* OBSOLETE fsr->regs[n] = next_addr; */ | |
454 | /* OBSOLETE fsr->regs[n + 1] = next_addr + 4; */ | |
455 | /* OBSOLETE next_addr -= 8; */ | |
456 | /* OBSOLETE return 1; */ | |
457 | /* OBSOLETE } */ | |
458 | /* OBSOLETE */ | |
459 | /* OBSOLETE /* sub sp,sp,imm */ */ | |
460 | /* OBSOLETE if ((op & OP_MASK_ALL_BUT_IMM) == OP_SUB_SP_IMM) */ | |
461 | /* OBSOLETE { */ | |
462 | /* OBSOLETE offset = EXTRACT_IMM6 (op); */ | |
463 | /* OBSOLETE frame_size += -offset; */ | |
464 | /* OBSOLETE return 1; */ | |
465 | /* OBSOLETE } */ | |
466 | /* OBSOLETE */ | |
467 | /* OBSOLETE /* st rn, @(sp,0) -- observed */ */ | |
468 | /* OBSOLETE if (((op & OP_MASK_ALL_BUT_RA) == OP_STW_SP_R0) || */ | |
469 | /* OBSOLETE ((op & OP_MASK_ALL_BUT_RA) == OP_STW_SP_IMM0)) */ | |
470 | /* OBSOLETE { */ | |
471 | /* OBSOLETE n = EXTRACT_RA (op); */ | |
472 | /* OBSOLETE fsr->regs[n] = (-frame_size); */ | |
473 | /* OBSOLETE return 1; */ | |
474 | /* OBSOLETE } */ | |
475 | /* OBSOLETE */ | |
476 | /* OBSOLETE /* st2w rn, @(sp,0) */ */ | |
477 | /* OBSOLETE if (((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_SP_R0) || */ | |
478 | /* OBSOLETE ((op & OP_MASK_ALL_BUT_RA) == OP_ST2W_SP_IMM0)) */ | |
479 | /* OBSOLETE { */ | |
480 | /* OBSOLETE n = EXTRACT_RA (op); */ | |
481 | /* OBSOLETE fsr->regs[n] = (-frame_size); */ | |
482 | /* OBSOLETE fsr->regs[n + 1] = (-frame_size) + 4; */ | |
483 | /* OBSOLETE return 1; */ | |
484 | /* OBSOLETE } */ | |
485 | /* OBSOLETE */ | |
486 | /* OBSOLETE /* stw fp,@(sp,imm) -- observed */ */ | |
487 | /* OBSOLETE if ((op & OP_MASK_ALL_BUT_IMM) == OP_STW_FP_SP_IMM) */ | |
488 | /* OBSOLETE { */ | |
489 | /* OBSOLETE offset = EXTRACT_IMM6 (op); */ | |
490 | /* OBSOLETE fsr->regs[FP_REGNUM] = (offset - frame_size); */ | |
491 | /* OBSOLETE return 1; */ | |
492 | /* OBSOLETE } */ | |
493 | /* OBSOLETE return 0; */ | |
494 | /* OBSOLETE } */ | |
495 | /* OBSOLETE */ | |
496 | /* OBSOLETE /* Put here the code to store, into a struct frame_saved_regs, the */ | |
497 | /* OBSOLETE addresses of the saved registers of frame described by FRAME_INFO. */ | |
498 | /* OBSOLETE This includes special registers such as pc and fp saved in special */ | |
499 | /* OBSOLETE ways in the stack frame. sp is even more special: the address we */ | |
500 | /* OBSOLETE return for it IS the sp for the next frame. */ */ | |
501 | /* OBSOLETE void */ | |
502 | /* OBSOLETE d30v_frame_find_saved_regs (struct frame_info *fi, struct frame_saved_regs *fsr) */ | |
503 | /* OBSOLETE { */ | |
504 | /* OBSOLETE CORE_ADDR fp, pc; */ | |
505 | /* OBSOLETE unsigned long opl, opr; */ | |
506 | /* OBSOLETE unsigned long op1, op2; */ | |
507 | /* OBSOLETE unsigned long fm0, fm1; */ | |
508 | /* OBSOLETE int i; */ | |
509 | /* OBSOLETE */ | |
510 | /* OBSOLETE fp = fi->frame; */ | |
511 | /* OBSOLETE memset (fsr, 0, sizeof (*fsr)); */ | |
512 | /* OBSOLETE next_addr = 0; */ | |
513 | /* OBSOLETE frame_size = 0; */ | |
514 | /* OBSOLETE end_of_stack = 0; */ | |
515 | /* OBSOLETE */ | |
516 | /* OBSOLETE uses_frame = 0; */ | |
517 | /* OBSOLETE */ | |
518 | /* OBSOLETE d30v_frame_find_saved_regs_offsets (fi, fsr); */ | |
519 | /* OBSOLETE */ | |
520 | /* OBSOLETE fi->size = frame_size; */ | |
521 | /* OBSOLETE */ | |
522 | /* OBSOLETE if (!fp) */ | |
523 | /* OBSOLETE fp = read_register (SP_REGNUM); */ | |
524 | /* OBSOLETE */ | |
525 | /* OBSOLETE for (i = 0; i < NUM_REGS - 1; i++) */ | |
526 | /* OBSOLETE if (fsr->regs[i]) */ | |
527 | /* OBSOLETE { */ | |
528 | /* OBSOLETE fsr->regs[i] = fsr->regs[i] + fp + frame_size; */ | |
529 | /* OBSOLETE } */ | |
530 | /* OBSOLETE */ | |
531 | /* OBSOLETE if (fsr->regs[LR_REGNUM]) */ | |
532 | /* OBSOLETE fi->return_pc = read_memory_unsigned_integer (fsr->regs[LR_REGNUM], 4); */ | |
533 | /* OBSOLETE else */ | |
534 | /* OBSOLETE fi->return_pc = read_register (LR_REGNUM); */ | |
535 | /* OBSOLETE */ | |
536 | /* OBSOLETE /* the SP is not normally (ever?) saved, but check anyway */ */ | |
537 | /* OBSOLETE if (!fsr->regs[SP_REGNUM]) */ | |
538 | /* OBSOLETE { */ | |
539 | /* OBSOLETE /* if the FP was saved, that means the current FP is valid, */ */ | |
540 | /* OBSOLETE /* otherwise, it isn't being used, so we use the SP instead */ */ | |
541 | /* OBSOLETE if (uses_frame) */ | |
542 | /* OBSOLETE fsr->regs[SP_REGNUM] = read_register (FP_REGNUM) + fi->size; */ | |
543 | /* OBSOLETE else */ | |
544 | /* OBSOLETE { */ | |
545 | /* OBSOLETE fsr->regs[SP_REGNUM] = fp + fi->size; */ | |
546 | /* OBSOLETE fi->frameless = 1; */ | |
547 | /* OBSOLETE fsr->regs[FP_REGNUM] = 0; */ | |
548 | /* OBSOLETE } */ | |
549 | /* OBSOLETE } */ | |
550 | /* OBSOLETE } */ | |
551 | /* OBSOLETE */ | |
552 | /* OBSOLETE void */ | |
553 | /* OBSOLETE d30v_frame_find_saved_regs_offsets (struct frame_info *fi, */ | |
554 | /* OBSOLETE struct frame_saved_regs *fsr) */ | |
555 | /* OBSOLETE { */ | |
556 | /* OBSOLETE CORE_ADDR fp, pc; */ | |
557 | /* OBSOLETE unsigned long opl, opr; */ | |
558 | /* OBSOLETE unsigned long op1, op2; */ | |
559 | /* OBSOLETE unsigned long fm0, fm1; */ | |
560 | /* OBSOLETE int i; */ | |
561 | /* OBSOLETE */ | |
562 | /* OBSOLETE fp = fi->frame; */ | |
563 | /* OBSOLETE memset (fsr, 0, sizeof (*fsr)); */ | |
564 | /* OBSOLETE next_addr = 0; */ | |
565 | /* OBSOLETE frame_size = 0; */ | |
566 | /* OBSOLETE end_of_stack = 0; */ | |
567 | /* OBSOLETE */ | |
568 | /* OBSOLETE pc = get_pc_function_start (fi->pc); */ | |
569 | /* OBSOLETE */ | |
570 | /* OBSOLETE uses_frame = 0; */ | |
571 | /* OBSOLETE while (pc < fi->pc) */ | |
572 | /* OBSOLETE { */ | |
573 | /* OBSOLETE opl = (unsigned long) read_memory_integer (pc, 4); */ | |
574 | /* OBSOLETE opr = (unsigned long) read_memory_integer (pc + 4, 4); */ | |
575 | /* OBSOLETE */ | |
576 | /* OBSOLETE fm0 = (opl & OP_MASK_FM_BIT); */ | |
577 | /* OBSOLETE fm1 = (opr & OP_MASK_FM_BIT); */ | |
578 | /* OBSOLETE */ | |
579 | /* OBSOLETE opl = (opl & OP_MASK_SUB_INST); */ | |
580 | /* OBSOLETE opr = (opr & OP_MASK_SUB_INST); */ | |
581 | /* OBSOLETE */ | |
582 | /* OBSOLETE if (fm0 && fm1) */ | |
583 | /* OBSOLETE { */ | |
584 | /* OBSOLETE /* long instruction */ */ | |
585 | /* OBSOLETE if ((opl & OP_MASK_ALL_BUT_IMM) == OP_ADD_SP_IMM) */ | |
586 | /* OBSOLETE { */ | |
587 | /* OBSOLETE /* add sp,sp,n */ */ | |
588 | /* OBSOLETE long offset = EXTRACT_IMM32 (opl, opr); */ | |
589 | /* OBSOLETE frame_size += -offset; */ | |
590 | /* OBSOLETE } */ | |
591 | /* OBSOLETE else if ((opl & OP_MASK_ALL_BUT_IMM) == OP_ADD_R22_SP_IMM) */ | |
592 | /* OBSOLETE { */ | |
593 | /* OBSOLETE /* add r22,sp,offset */ */ | |
594 | /* OBSOLETE long offset = EXTRACT_IMM32 (opl, opr); */ | |
595 | /* OBSOLETE next_addr = (offset - frame_size); */ | |
596 | /* OBSOLETE } */ | |
597 | /* OBSOLETE else if ((opl & OP_MASK_OP_AND_RB) == OP_STW_SP_IMM) */ | |
598 | /* OBSOLETE { */ | |
599 | /* OBSOLETE /* st Ra, @(sp,imm) */ */ | |
600 | /* OBSOLETE long offset = EXTRACT_IMM32 (opl, opr); */ | |
601 | /* OBSOLETE short n = EXTRACT_RA (opl); */ | |
602 | /* OBSOLETE fsr->regs[n] = (offset - frame_size); */ | |
603 | /* OBSOLETE } */ | |
604 | /* OBSOLETE else if ((opl & OP_MASK_OP_AND_RB) == OP_ST2W_SP_IMM) */ | |
605 | /* OBSOLETE { */ | |
606 | /* OBSOLETE /* st2w Ra, @(sp,offset) */ */ | |
607 | /* OBSOLETE long offset = EXTRACT_IMM32 (opl, opr); */ | |
608 | /* OBSOLETE short n = EXTRACT_RA (opl); */ | |
609 | /* OBSOLETE fsr->regs[n] = (offset - frame_size); */ | |
610 | /* OBSOLETE fsr->regs[n + 1] = (offset - frame_size) + 4; */ | |
611 | /* OBSOLETE } */ | |
612 | /* OBSOLETE else if ((opl & OP_MASK_ALL_BUT_IMM) == OP_OR_SP_R0_IMM) */ | |
613 | /* OBSOLETE { */ | |
614 | /* OBSOLETE end_of_stack = 1; */ | |
615 | /* OBSOLETE } */ | |
616 | /* OBSOLETE else */ | |
617 | /* OBSOLETE break; */ | |
618 | /* OBSOLETE } */ | |
619 | /* OBSOLETE else */ | |
620 | /* OBSOLETE { */ | |
621 | /* OBSOLETE /* short instructions */ */ | |
622 | /* OBSOLETE if (fm0 && !fm1) */ | |
623 | /* OBSOLETE { */ | |
624 | /* OBSOLETE op2 = opl; */ | |
625 | /* OBSOLETE op1 = opr; */ | |
626 | /* OBSOLETE } */ | |
627 | /* OBSOLETE else */ | |
628 | /* OBSOLETE { */ | |
629 | /* OBSOLETE op1 = opl; */ | |
630 | /* OBSOLETE op2 = opr; */ | |
631 | /* OBSOLETE } */ | |
632 | /* OBSOLETE if (!prologue_find_regs (op1, fsr, pc) || !prologue_find_regs (op2, fsr, pc)) */ | |
633 | /* OBSOLETE break; */ | |
634 | /* OBSOLETE } */ | |
635 | /* OBSOLETE pc += 8; */ | |
636 | /* OBSOLETE } */ | |
637 | /* OBSOLETE */ | |
638 | /* OBSOLETE #if 0 */ | |
639 | /* OBSOLETE fi->size = frame_size; */ | |
640 | /* OBSOLETE */ | |
641 | /* OBSOLETE if (!fp) */ | |
642 | /* OBSOLETE fp = read_register (SP_REGNUM); */ | |
643 | /* OBSOLETE */ | |
644 | /* OBSOLETE for (i = 0; i < NUM_REGS - 1; i++) */ | |
645 | /* OBSOLETE if (fsr->regs[i]) */ | |
646 | /* OBSOLETE { */ | |
647 | /* OBSOLETE fsr->regs[i] = fsr->regs[i] + fp + frame_size; */ | |
648 | /* OBSOLETE } */ | |
649 | /* OBSOLETE */ | |
650 | /* OBSOLETE if (fsr->regs[LR_REGNUM]) */ | |
651 | /* OBSOLETE fi->return_pc = read_memory_unsigned_integer (fsr->regs[LR_REGNUM], 4); */ | |
652 | /* OBSOLETE else */ | |
653 | /* OBSOLETE fi->return_pc = read_register (LR_REGNUM); */ | |
654 | /* OBSOLETE */ | |
655 | /* OBSOLETE /* the SP is not normally (ever?) saved, but check anyway */ */ | |
656 | /* OBSOLETE if (!fsr->regs[SP_REGNUM]) */ | |
657 | /* OBSOLETE { */ | |
658 | /* OBSOLETE /* if the FP was saved, that means the current FP is valid, */ */ | |
659 | /* OBSOLETE /* otherwise, it isn't being used, so we use the SP instead */ */ | |
660 | /* OBSOLETE if (uses_frame) */ | |
661 | /* OBSOLETE fsr->regs[SP_REGNUM] = read_register (FP_REGNUM) + fi->size; */ | |
662 | /* OBSOLETE else */ | |
663 | /* OBSOLETE { */ | |
664 | /* OBSOLETE fsr->regs[SP_REGNUM] = fp + fi->size; */ | |
665 | /* OBSOLETE fi->frameless = 1; */ | |
666 | /* OBSOLETE fsr->regs[FP_REGNUM] = 0; */ | |
667 | /* OBSOLETE } */ | |
668 | /* OBSOLETE } */ | |
669 | /* OBSOLETE #endif */ | |
670 | /* OBSOLETE } */ | |
671 | /* OBSOLETE */ | |
672 | /* OBSOLETE void */ | |
673 | /* OBSOLETE d30v_init_extra_frame_info (int fromleaf, struct frame_info *fi) */ | |
674 | /* OBSOLETE { */ | |
675 | /* OBSOLETE struct frame_saved_regs dummy; */ | |
676 | /* OBSOLETE */ | |
677 | /* OBSOLETE if (fi->next && (fi->pc == 0)) */ | |
678 | /* OBSOLETE fi->pc = fi->next->return_pc; */ | |
679 | /* OBSOLETE */ | |
680 | /* OBSOLETE d30v_frame_find_saved_regs_offsets (fi, &dummy); */ | |
681 | /* OBSOLETE */ | |
682 | /* OBSOLETE if (uses_frame == 0) */ | |
683 | /* OBSOLETE fi->frameless = 1; */ | |
684 | /* OBSOLETE else */ | |
685 | /* OBSOLETE fi->frameless = 0; */ | |
686 | /* OBSOLETE */ | |
687 | /* OBSOLETE if ((fi->next == 0) && (uses_frame == 0)) */ | |
688 | /* OBSOLETE /* innermost frame and it's "frameless", */ | |
689 | /* OBSOLETE so the fi->frame field is wrong, fix it! */ */ | |
690 | /* OBSOLETE fi->frame = read_sp (); */ | |
691 | /* OBSOLETE */ | |
692 | /* OBSOLETE if (dummy.regs[LR_REGNUM]) */ | |
693 | /* OBSOLETE { */ | |
694 | /* OBSOLETE /* it was saved, grab it! */ */ | |
695 | /* OBSOLETE dummy.regs[LR_REGNUM] += (fi->frame + frame_size); */ | |
696 | /* OBSOLETE fi->return_pc = read_memory_unsigned_integer (dummy.regs[LR_REGNUM], 4); */ | |
697 | /* OBSOLETE } */ | |
698 | /* OBSOLETE else */ | |
699 | /* OBSOLETE fi->return_pc = read_register (LR_REGNUM); */ | |
700 | /* OBSOLETE } */ | |
701 | /* OBSOLETE */ | |
702 | /* OBSOLETE void */ | |
703 | /* OBSOLETE d30v_init_frame_pc (int fromleaf, struct frame_info *prev) */ | |
704 | /* OBSOLETE { */ | |
705 | /* OBSOLETE /* default value, put here so we can breakpoint on it and */ | |
706 | /* OBSOLETE see if the default value is really the right thing to use */ */ | |
707 | /* OBSOLETE prev->pc = (fromleaf ? SAVED_PC_AFTER_CALL (prev->next) : \ */ | |
708 | /* OBSOLETE prev->next ? FRAME_SAVED_PC (prev->next) : read_pc ()); */ | |
709 | /* OBSOLETE } */ | |
710 | /* OBSOLETE */ | |
711 | /* OBSOLETE static void d30v_print_register (int regnum, int tabular); */ | |
712 | /* OBSOLETE */ | |
713 | /* OBSOLETE static void */ | |
714 | /* OBSOLETE d30v_print_register (int regnum, int tabular) */ | |
715 | /* OBSOLETE { */ | |
716 | /* OBSOLETE if (regnum < A0_REGNUM) */ | |
717 | /* OBSOLETE { */ | |
718 | /* OBSOLETE if (tabular) */ | |
719 | /* OBSOLETE printf_filtered ("%08lx", (long) read_register (regnum)); */ | |
720 | /* OBSOLETE else */ | |
721 | /* OBSOLETE printf_filtered ("0x%lx %ld", */ | |
722 | /* OBSOLETE (long) read_register (regnum), */ | |
723 | /* OBSOLETE (long) read_register (regnum)); */ | |
724 | /* OBSOLETE } */ | |
725 | /* OBSOLETE else */ | |
726 | /* OBSOLETE { */ | |
727 | /* OBSOLETE char regbuf[MAX_REGISTER_RAW_SIZE]; */ | |
728 | /* OBSOLETE */ | |
729 | /* OBSOLETE frame_register_read (selected_frame, regnum, regbuf); */ | |
730 | /* OBSOLETE */ | |
731 | /* OBSOLETE val_print (REGISTER_VIRTUAL_TYPE (regnum), regbuf, 0, 0, */ | |
732 | /* OBSOLETE gdb_stdout, 'x', 1, 0, Val_pretty_default); */ | |
733 | /* OBSOLETE */ | |
734 | /* OBSOLETE if (!tabular) */ | |
735 | /* OBSOLETE { */ | |
736 | /* OBSOLETE printf_filtered (" "); */ | |
737 | /* OBSOLETE val_print (REGISTER_VIRTUAL_TYPE (regnum), regbuf, 0, 0, */ | |
738 | /* OBSOLETE gdb_stdout, 'd', 1, 0, Val_pretty_default); */ | |
739 | /* OBSOLETE } */ | |
740 | /* OBSOLETE } */ | |
741 | /* OBSOLETE } */ | |
742 | /* OBSOLETE */ | |
743 | /* OBSOLETE static void */ | |
744 | /* OBSOLETE d30v_print_flags (void) */ | |
745 | /* OBSOLETE { */ | |
746 | /* OBSOLETE long psw = read_register (PSW_REGNUM); */ | |
747 | /* OBSOLETE printf_filtered ("flags #1"); */ | |
748 | /* OBSOLETE printf_filtered (" (sm) %d", (psw & PSW_SM) != 0); */ | |
749 | /* OBSOLETE printf_filtered (" (ea) %d", (psw & PSW_EA) != 0); */ | |
750 | /* OBSOLETE printf_filtered (" (db) %d", (psw & PSW_DB) != 0); */ | |
751 | /* OBSOLETE printf_filtered (" (ds) %d", (psw & PSW_DS) != 0); */ | |
752 | /* OBSOLETE printf_filtered (" (ie) %d", (psw & PSW_IE) != 0); */ | |
753 | /* OBSOLETE printf_filtered (" (rp) %d", (psw & PSW_RP) != 0); */ | |
754 | /* OBSOLETE printf_filtered (" (md) %d\n", (psw & PSW_MD) != 0); */ | |
755 | /* OBSOLETE */ | |
756 | /* OBSOLETE printf_filtered ("flags #2"); */ | |
757 | /* OBSOLETE printf_filtered (" (f0) %d", (psw & PSW_F0) != 0); */ | |
758 | /* OBSOLETE printf_filtered (" (f1) %d", (psw & PSW_F1) != 0); */ | |
759 | /* OBSOLETE printf_filtered (" (f2) %d", (psw & PSW_F2) != 0); */ | |
760 | /* OBSOLETE printf_filtered (" (f3) %d", (psw & PSW_F3) != 0); */ | |
761 | /* OBSOLETE printf_filtered (" (s) %d", (psw & PSW_S) != 0); */ | |
762 | /* OBSOLETE printf_filtered (" (v) %d", (psw & PSW_V) != 0); */ | |
763 | /* OBSOLETE printf_filtered (" (va) %d", (psw & PSW_VA) != 0); */ | |
764 | /* OBSOLETE printf_filtered (" (c) %d\n", (psw & PSW_C) != 0); */ | |
765 | /* OBSOLETE } */ | |
766 | /* OBSOLETE */ | |
767 | /* OBSOLETE static void */ | |
768 | /* OBSOLETE print_flags_command (char *args, int from_tty) */ | |
769 | /* OBSOLETE { */ | |
770 | /* OBSOLETE d30v_print_flags (); */ | |
771 | /* OBSOLETE } */ | |
772 | /* OBSOLETE */ | |
773 | /* OBSOLETE void */ | |
774 | /* OBSOLETE d30v_do_registers_info (int regnum, int fpregs) */ | |
775 | /* OBSOLETE { */ | |
776 | /* OBSOLETE long long num1, num2; */ | |
777 | /* OBSOLETE long psw; */ | |
778 | /* OBSOLETE */ | |
779 | /* OBSOLETE if (regnum != -1) */ | |
780 | /* OBSOLETE { */ | |
781 | /* OBSOLETE if (REGISTER_NAME (0) == NULL || REGISTER_NAME (0)[0] == '\000') */ | |
782 | /* OBSOLETE return; */ | |
783 | /* OBSOLETE */ | |
784 | /* OBSOLETE printf_filtered ("%s ", REGISTER_NAME (regnum)); */ | |
785 | /* OBSOLETE d30v_print_register (regnum, 0); */ | |
786 | /* OBSOLETE */ | |
787 | /* OBSOLETE printf_filtered ("\n"); */ | |
788 | /* OBSOLETE return; */ | |
789 | /* OBSOLETE } */ | |
790 | /* OBSOLETE */ | |
791 | /* OBSOLETE /* Have to print all the registers. Format them nicely. */ */ | |
792 | /* OBSOLETE */ | |
793 | /* OBSOLETE printf_filtered ("PC="); */ | |
794 | /* OBSOLETE print_address (read_pc (), gdb_stdout); */ | |
795 | /* OBSOLETE */ | |
796 | /* OBSOLETE printf_filtered (" PSW="); */ | |
797 | /* OBSOLETE d30v_print_register (PSW_REGNUM, 1); */ | |
798 | /* OBSOLETE */ | |
799 | /* OBSOLETE printf_filtered (" BPC="); */ | |
800 | /* OBSOLETE print_address (read_register (BPC_REGNUM), gdb_stdout); */ | |
801 | /* OBSOLETE */ | |
802 | /* OBSOLETE printf_filtered (" BPSW="); */ | |
803 | /* OBSOLETE d30v_print_register (BPSW_REGNUM, 1); */ | |
804 | /* OBSOLETE printf_filtered ("\n"); */ | |
805 | /* OBSOLETE */ | |
806 | /* OBSOLETE printf_filtered ("DPC="); */ | |
807 | /* OBSOLETE print_address (read_register (DPC_REGNUM), gdb_stdout); */ | |
808 | /* OBSOLETE */ | |
809 | /* OBSOLETE printf_filtered (" DPSW="); */ | |
810 | /* OBSOLETE d30v_print_register (DPSW_REGNUM, 1); */ | |
811 | /* OBSOLETE */ | |
812 | /* OBSOLETE printf_filtered (" IBA="); */ | |
813 | /* OBSOLETE print_address (read_register (IBA_REGNUM), gdb_stdout); */ | |
814 | /* OBSOLETE printf_filtered ("\n"); */ | |
815 | /* OBSOLETE */ | |
816 | /* OBSOLETE printf_filtered ("RPT_C="); */ | |
817 | /* OBSOLETE d30v_print_register (RPT_C_REGNUM, 1); */ | |
818 | /* OBSOLETE */ | |
819 | /* OBSOLETE printf_filtered (" RPT_S="); */ | |
820 | /* OBSOLETE print_address (read_register (RPT_S_REGNUM), gdb_stdout); */ | |
821 | /* OBSOLETE */ | |
822 | /* OBSOLETE printf_filtered (" RPT_E="); */ | |
823 | /* OBSOLETE print_address (read_register (RPT_E_REGNUM), gdb_stdout); */ | |
824 | /* OBSOLETE printf_filtered ("\n"); */ | |
825 | /* OBSOLETE */ | |
826 | /* OBSOLETE printf_filtered ("MOD_S="); */ | |
827 | /* OBSOLETE print_address (read_register (MOD_S_REGNUM), gdb_stdout); */ | |
828 | /* OBSOLETE */ | |
829 | /* OBSOLETE printf_filtered (" MOD_E="); */ | |
830 | /* OBSOLETE print_address (read_register (MOD_E_REGNUM), gdb_stdout); */ | |
831 | /* OBSOLETE printf_filtered ("\n"); */ | |
832 | /* OBSOLETE */ | |
833 | /* OBSOLETE printf_filtered ("EIT_VB="); */ | |
834 | /* OBSOLETE print_address (read_register (EIT_VB_REGNUM), gdb_stdout); */ | |
835 | /* OBSOLETE */ | |
836 | /* OBSOLETE printf_filtered (" INT_S="); */ | |
837 | /* OBSOLETE d30v_print_register (INT_S_REGNUM, 1); */ | |
838 | /* OBSOLETE */ | |
839 | /* OBSOLETE printf_filtered (" INT_M="); */ | |
840 | /* OBSOLETE d30v_print_register (INT_M_REGNUM, 1); */ | |
841 | /* OBSOLETE printf_filtered ("\n"); */ | |
842 | /* OBSOLETE */ | |
843 | /* OBSOLETE d30v_print_flags (); */ | |
844 | /* OBSOLETE for (regnum = 0; regnum <= 63;) */ | |
845 | /* OBSOLETE { */ | |
846 | /* OBSOLETE int i; */ | |
847 | /* OBSOLETE */ | |
848 | /* OBSOLETE printf_filtered ("R%d-R%d ", regnum, regnum + 7); */ | |
849 | /* OBSOLETE if (regnum < 10) */ | |
850 | /* OBSOLETE printf_filtered (" "); */ | |
851 | /* OBSOLETE if (regnum + 7 < 10) */ | |
852 | /* OBSOLETE printf_filtered (" "); */ | |
853 | /* OBSOLETE */ | |
854 | /* OBSOLETE for (i = 0; i < 8; i++) */ | |
855 | /* OBSOLETE { */ | |
856 | /* OBSOLETE printf_filtered (" "); */ | |
857 | /* OBSOLETE d30v_print_register (regnum++, 1); */ | |
858 | /* OBSOLETE } */ | |
859 | /* OBSOLETE */ | |
860 | /* OBSOLETE printf_filtered ("\n"); */ | |
861 | /* OBSOLETE } */ | |
862 | /* OBSOLETE */ | |
863 | /* OBSOLETE printf_filtered ("A0-A1 "); */ | |
864 | /* OBSOLETE */ | |
865 | /* OBSOLETE d30v_print_register (A0_REGNUM, 1); */ | |
866 | /* OBSOLETE printf_filtered (" "); */ | |
867 | /* OBSOLETE d30v_print_register (A1_REGNUM, 1); */ | |
868 | /* OBSOLETE printf_filtered ("\n"); */ | |
869 | /* OBSOLETE } */ | |
870 | /* OBSOLETE */ | |
871 | /* OBSOLETE CORE_ADDR */ | |
872 | /* OBSOLETE d30v_fix_call_dummy (char *dummyname, CORE_ADDR start_sp, CORE_ADDR fun, */ | |
873 | /* OBSOLETE int nargs, struct value **args, */ | |
874 | /* OBSOLETE struct type *type, int gcc_p) */ | |
875 | /* OBSOLETE { */ | |
876 | /* OBSOLETE int regnum; */ | |
877 | /* OBSOLETE CORE_ADDR sp; */ | |
878 | /* OBSOLETE char buffer[MAX_REGISTER_RAW_SIZE]; */ | |
879 | /* OBSOLETE struct frame_info *frame = get_current_frame (); */ | |
880 | /* OBSOLETE frame->dummy = start_sp; */ | |
881 | /* OBSOLETE /*start_sp |= DMEM_START; */ */ | |
882 | /* OBSOLETE */ | |
883 | /* OBSOLETE sp = start_sp; */ | |
884 | /* OBSOLETE for (regnum = 0; regnum < NUM_REGS; regnum++) */ | |
885 | /* OBSOLETE { */ | |
886 | /* OBSOLETE sp -= REGISTER_RAW_SIZE (regnum); */ | |
887 | /* OBSOLETE store_address (buffer, REGISTER_RAW_SIZE (regnum), read_register (regnum)); */ | |
888 | /* OBSOLETE write_memory (sp, buffer, REGISTER_RAW_SIZE (regnum)); */ | |
889 | /* OBSOLETE } */ | |
890 | /* OBSOLETE write_register (SP_REGNUM, (LONGEST) sp); */ | |
891 | /* OBSOLETE /* now we need to load LR with the return address */ */ | |
892 | /* OBSOLETE write_register (LR_REGNUM, (LONGEST) d30v_call_dummy_address ()); */ | |
893 | /* OBSOLETE return sp; */ | |
894 | /* OBSOLETE } */ | |
895 | /* OBSOLETE */ | |
896 | /* OBSOLETE static void */ | |
897 | /* OBSOLETE d30v_pop_dummy_frame (struct frame_info *fi) */ | |
898 | /* OBSOLETE { */ | |
899 | /* OBSOLETE CORE_ADDR sp = fi->dummy; */ | |
900 | /* OBSOLETE int regnum; */ | |
901 | /* OBSOLETE */ | |
902 | /* OBSOLETE for (regnum = 0; regnum < NUM_REGS; regnum++) */ | |
903 | /* OBSOLETE { */ | |
904 | /* OBSOLETE sp -= REGISTER_RAW_SIZE (regnum); */ | |
905 | /* OBSOLETE write_register (regnum, read_memory_unsigned_integer (sp, REGISTER_RAW_SIZE (regnum))); */ | |
906 | /* OBSOLETE } */ | |
907 | /* OBSOLETE flush_cached_frames (); /* needed? */ */ | |
908 | /* OBSOLETE } */ | |
909 | /* OBSOLETE */ | |
910 | /* OBSOLETE */ | |
911 | /* OBSOLETE CORE_ADDR */ | |
912 | /* OBSOLETE d30v_push_arguments (int nargs, struct value **args, CORE_ADDR sp, */ | |
913 | /* OBSOLETE int struct_return, CORE_ADDR struct_addr) */ | |
914 | /* OBSOLETE { */ | |
915 | /* OBSOLETE int i, len, index = 0, regnum = 2; */ | |
916 | /* OBSOLETE char buffer[4], *contents; */ | |
917 | /* OBSOLETE LONGEST val; */ | |
918 | /* OBSOLETE CORE_ADDR ptrs[10]; */ | |
919 | /* OBSOLETE */ | |
920 | /* OBSOLETE #if 0 */ | |
921 | /* OBSOLETE /* Pass 1. Put all large args on stack */ */ | |
922 | /* OBSOLETE for (i = 0; i < nargs; i++) */ | |
923 | /* OBSOLETE { */ | |
924 | /* OBSOLETE struct value *arg = args[i]; */ | |
925 | /* OBSOLETE struct type *arg_type = check_typedef (VALUE_TYPE (arg)); */ | |
926 | /* OBSOLETE len = TYPE_LENGTH (arg_type); */ | |
927 | /* OBSOLETE contents = VALUE_CONTENTS (arg); */ | |
928 | /* OBSOLETE val = extract_signed_integer (contents, len); */ | |
929 | /* OBSOLETE if (len > 4) */ | |
930 | /* OBSOLETE { */ | |
931 | /* OBSOLETE /* put on stack and pass pointers */ */ | |
932 | /* OBSOLETE sp -= len; */ | |
933 | /* OBSOLETE write_memory (sp, contents, len); */ | |
934 | /* OBSOLETE ptrs[index++] = sp; */ | |
935 | /* OBSOLETE } */ | |
936 | /* OBSOLETE } */ | |
937 | /* OBSOLETE #endif */ | |
938 | /* OBSOLETE index = 0; */ | |
939 | /* OBSOLETE */ | |
940 | /* OBSOLETE for (i = 0; i < nargs; i++) */ | |
941 | /* OBSOLETE { */ | |
942 | /* OBSOLETE struct value *arg = args[i]; */ | |
943 | /* OBSOLETE struct type *arg_type = check_typedef (VALUE_TYPE (arg)); */ | |
944 | /* OBSOLETE len = TYPE_LENGTH (arg_type); */ | |
945 | /* OBSOLETE contents = VALUE_CONTENTS (arg); */ | |
946 | /* OBSOLETE if (len > 4) */ | |
947 | /* OBSOLETE { */ | |
948 | /* OBSOLETE /* we need multiple registers */ */ | |
949 | /* OBSOLETE int ndx; */ | |
950 | /* OBSOLETE */ | |
951 | /* OBSOLETE for (ndx = 0; len > 0; ndx += 8, len -= 8) */ | |
952 | /* OBSOLETE { */ | |
953 | /* OBSOLETE if (regnum & 1) */ | |
954 | /* OBSOLETE regnum++; /* all args > 4 bytes start in even register */ */ | |
955 | /* OBSOLETE */ | |
956 | /* OBSOLETE if (regnum < 18) */ | |
957 | /* OBSOLETE { */ | |
958 | /* OBSOLETE val = extract_signed_integer (&contents[ndx], 4); */ | |
959 | /* OBSOLETE write_register (regnum++, val); */ | |
960 | /* OBSOLETE */ | |
961 | /* OBSOLETE if (len >= 8) */ | |
962 | /* OBSOLETE val = extract_signed_integer (&contents[ndx + 4], 4); */ | |
963 | /* OBSOLETE else */ | |
964 | /* OBSOLETE val = extract_signed_integer (&contents[ndx + 4], len - 4); */ | |
965 | /* OBSOLETE write_register (regnum++, val); */ | |
966 | /* OBSOLETE } */ | |
967 | /* OBSOLETE else */ | |
968 | /* OBSOLETE { */ | |
969 | /* OBSOLETE /* no more registers available. put it on the stack */ */ | |
970 | /* OBSOLETE */ | |
971 | /* OBSOLETE /* all args > 4 bytes are padded to a multiple of 8 bytes */ | |
972 | /* OBSOLETE and start on an 8 byte boundary */ */ | |
973 | /* OBSOLETE if (sp & 7) */ | |
974 | /* OBSOLETE sp -= (sp & 7); /* align it */ */ | |
975 | /* OBSOLETE */ | |
976 | /* OBSOLETE sp -= ((len + 7) & ~7); /* allocate space */ */ | |
977 | /* OBSOLETE write_memory (sp, &contents[ndx], len); */ | |
978 | /* OBSOLETE break; */ | |
979 | /* OBSOLETE } */ | |
980 | /* OBSOLETE } */ | |
981 | /* OBSOLETE } */ | |
982 | /* OBSOLETE else */ | |
983 | /* OBSOLETE { */ | |
984 | /* OBSOLETE if (regnum < 18) */ | |
985 | /* OBSOLETE { */ | |
986 | /* OBSOLETE val = extract_signed_integer (contents, len); */ | |
987 | /* OBSOLETE write_register (regnum++, val); */ | |
988 | /* OBSOLETE } */ | |
989 | /* OBSOLETE else */ | |
990 | /* OBSOLETE { */ | |
991 | /* OBSOLETE /* all args are padded to a multiple of 4 bytes (at least) */ */ | |
992 | /* OBSOLETE sp -= ((len + 3) & ~3); */ | |
993 | /* OBSOLETE write_memory (sp, contents, len); */ | |
994 | /* OBSOLETE } */ | |
995 | /* OBSOLETE } */ | |
996 | /* OBSOLETE } */ | |
997 | /* OBSOLETE if (sp & 7) */ | |
998 | /* OBSOLETE /* stack pointer is not on an 8 byte boundary -- align it */ */ | |
999 | /* OBSOLETE sp -= (sp & 7); */ | |
1000 | /* OBSOLETE return sp; */ | |
1001 | /* OBSOLETE } */ | |
1002 | /* OBSOLETE */ | |
1003 | /* OBSOLETE */ | |
1004 | /* OBSOLETE /* pick an out-of-the-way place to set the return value */ */ | |
1005 | /* OBSOLETE /* for an inferior function call. The link register is set to this */ */ | |
1006 | /* OBSOLETE /* value and a momentary breakpoint is set there. When the breakpoint */ */ | |
1007 | /* OBSOLETE /* is hit, the dummy frame is popped and the previous environment is */ */ | |
1008 | /* OBSOLETE /* restored. */ */ | |
1009 | /* OBSOLETE */ | |
1010 | /* OBSOLETE CORE_ADDR */ | |
1011 | /* OBSOLETE d30v_call_dummy_address (void) */ | |
1012 | /* OBSOLETE { */ | |
1013 | /* OBSOLETE CORE_ADDR entry; */ | |
1014 | /* OBSOLETE struct minimal_symbol *sym; */ | |
1015 | /* OBSOLETE */ | |
1016 | /* OBSOLETE entry = entry_point_address (); */ | |
1017 | /* OBSOLETE */ | |
1018 | /* OBSOLETE if (entry != 0) */ | |
1019 | /* OBSOLETE return entry; */ | |
1020 | /* OBSOLETE */ | |
1021 | /* OBSOLETE sym = lookup_minimal_symbol ("_start", NULL, symfile_objfile); */ | |
1022 | /* OBSOLETE */ | |
1023 | /* OBSOLETE if (!sym || MSYMBOL_TYPE (sym) != mst_text) */ | |
1024 | /* OBSOLETE return 0; */ | |
1025 | /* OBSOLETE else */ | |
1026 | /* OBSOLETE return SYMBOL_VALUE_ADDRESS (sym); */ | |
1027 | /* OBSOLETE } */ | |
1028 | /* OBSOLETE */ | |
1029 | /* OBSOLETE /* Given a return value in `regbuf' with a type `valtype', */ | |
1030 | /* OBSOLETE extract and copy its value into `valbuf'. */ */ | |
1031 | /* OBSOLETE */ | |
1032 | /* OBSOLETE void */ | |
1033 | /* OBSOLETE d30v_extract_return_value (struct type *valtype, char regbuf[REGISTER_BYTES], */ | |
1034 | /* OBSOLETE char *valbuf) */ | |
1035 | /* OBSOLETE { */ | |
1036 | /* OBSOLETE memcpy (valbuf, regbuf + REGISTER_BYTE (2), TYPE_LENGTH (valtype)); */ | |
1037 | /* OBSOLETE } */ | |
1038 | /* OBSOLETE */ | |
1039 | /* OBSOLETE /* The following code implements access to, and display of, the D30V's */ | |
1040 | /* OBSOLETE instruction trace buffer. The buffer consists of 64K or more */ | |
1041 | /* OBSOLETE 4-byte words of data, of which each words includes an 8-bit count, */ | |
1042 | /* OBSOLETE an 8-bit segment number, and a 16-bit instruction address. */ | |
1043 | /* OBSOLETE */ | |
1044 | /* OBSOLETE In theory, the trace buffer is continuously capturing instruction */ | |
1045 | /* OBSOLETE data that the CPU presents on its "debug bus", but in practice, the */ | |
1046 | /* OBSOLETE ROMified GDB stub only enables tracing when it continues or steps */ | |
1047 | /* OBSOLETE the program, and stops tracing when the program stops; so it */ | |
1048 | /* OBSOLETE actually works for GDB to read the buffer counter out of memory and */ | |
1049 | /* OBSOLETE then read each trace word. The counter records where the tracing */ | |
1050 | /* OBSOLETE stops, but there is no record of where it started, so we remember */ | |
1051 | /* OBSOLETE the PC when we resumed and then search backwards in the trace */ | |
1052 | /* OBSOLETE buffer for a word that includes that address. This is not perfect, */ | |
1053 | /* OBSOLETE because you will miss trace data if the resumption PC is the target */ | |
1054 | /* OBSOLETE of a branch. (The value of the buffer counter is semi-random, any */ | |
1055 | /* OBSOLETE trace data from a previous program stop is gone.) */ */ | |
1056 | /* OBSOLETE */ | |
1057 | /* OBSOLETE /* The address of the last word recorded in the trace buffer. */ */ | |
1058 | /* OBSOLETE */ | |
1059 | /* OBSOLETE #define DBBC_ADDR (0xd80000) */ | |
1060 | /* OBSOLETE */ | |
1061 | /* OBSOLETE /* The base of the trace buffer, at least for the "Board_0". */ */ | |
1062 | /* OBSOLETE */ | |
1063 | /* OBSOLETE #define TRACE_BUFFER_BASE (0xf40000) */ | |
1064 | /* OBSOLETE */ | |
1065 | /* OBSOLETE static void trace_command (char *, int); */ | |
1066 | /* OBSOLETE */ | |
1067 | /* OBSOLETE static void untrace_command (char *, int); */ | |
1068 | /* OBSOLETE */ | |
1069 | /* OBSOLETE static void trace_info (char *, int); */ | |
1070 | /* OBSOLETE */ | |
1071 | /* OBSOLETE static void tdisassemble_command (char *, int); */ | |
1072 | /* OBSOLETE */ | |
1073 | /* OBSOLETE static void display_trace (int, int); */ | |
1074 | /* OBSOLETE */ | |
1075 | /* OBSOLETE /* True when instruction traces are being collected. */ */ | |
1076 | /* OBSOLETE */ | |
1077 | /* OBSOLETE static int tracing; */ | |
1078 | /* OBSOLETE */ | |
1079 | /* OBSOLETE /* Remembered PC. */ */ | |
1080 | /* OBSOLETE */ | |
1081 | /* OBSOLETE static CORE_ADDR last_pc; */ | |
1082 | /* OBSOLETE */ | |
1083 | /* OBSOLETE /* True when trace output should be displayed whenever program stops. */ */ | |
1084 | /* OBSOLETE */ | |
1085 | /* OBSOLETE static int trace_display; */ | |
1086 | /* OBSOLETE */ | |
1087 | /* OBSOLETE /* True when trace listing should include source lines. */ */ | |
1088 | /* OBSOLETE */ | |
1089 | /* OBSOLETE static int default_trace_show_source = 1; */ | |
1090 | /* OBSOLETE */ | |
1091 | /* OBSOLETE struct trace_buffer */ | |
1092 | /* OBSOLETE { */ | |
1093 | /* OBSOLETE int size; */ | |
1094 | /* OBSOLETE short *counts; */ | |
1095 | /* OBSOLETE CORE_ADDR *addrs; */ | |
1096 | /* OBSOLETE } */ | |
1097 | /* OBSOLETE trace_data; */ | |
1098 | /* OBSOLETE */ | |
1099 | /* OBSOLETE static void */ | |
1100 | /* OBSOLETE trace_command (char *args, int from_tty) */ | |
1101 | /* OBSOLETE { */ | |
1102 | /* OBSOLETE /* Clear the host-side trace buffer, allocating space if needed. */ */ | |
1103 | /* OBSOLETE trace_data.size = 0; */ | |
1104 | /* OBSOLETE if (trace_data.counts == NULL) */ | |
1105 | /* OBSOLETE trace_data.counts = (short *) xmalloc (65536 * sizeof (short)); */ | |
1106 | /* OBSOLETE if (trace_data.addrs == NULL) */ | |
1107 | /* OBSOLETE trace_data.addrs = (CORE_ADDR *) xmalloc (65536 * sizeof (CORE_ADDR)); */ | |
1108 | /* OBSOLETE */ | |
1109 | /* OBSOLETE tracing = 1; */ | |
1110 | /* OBSOLETE */ | |
1111 | /* OBSOLETE printf_filtered ("Tracing is now on.\n"); */ | |
1112 | /* OBSOLETE } */ | |
1113 | /* OBSOLETE */ | |
1114 | /* OBSOLETE static void */ | |
1115 | /* OBSOLETE untrace_command (char *args, int from_tty) */ | |
1116 | /* OBSOLETE { */ | |
1117 | /* OBSOLETE tracing = 0; */ | |
1118 | /* OBSOLETE */ | |
1119 | /* OBSOLETE printf_filtered ("Tracing is now off.\n"); */ | |
1120 | /* OBSOLETE } */ | |
1121 | /* OBSOLETE */ | |
1122 | /* OBSOLETE static void */ | |
1123 | /* OBSOLETE trace_info (char *args, int from_tty) */ | |
1124 | /* OBSOLETE { */ | |
1125 | /* OBSOLETE int i; */ | |
1126 | /* OBSOLETE */ | |
1127 | /* OBSOLETE if (trace_data.size) */ | |
1128 | /* OBSOLETE { */ | |
1129 | /* OBSOLETE printf_filtered ("%d entries in trace buffer:\n", trace_data.size); */ | |
1130 | /* OBSOLETE */ | |
1131 | /* OBSOLETE for (i = 0; i < trace_data.size; ++i) */ | |
1132 | /* OBSOLETE { */ | |
1133 | /* OBSOLETE printf_filtered ("%d: %d instruction%s at 0x%s\n", */ | |
1134 | /* OBSOLETE i, trace_data.counts[i], */ | |
1135 | /* OBSOLETE (trace_data.counts[i] == 1 ? "" : "s"), */ | |
1136 | /* OBSOLETE paddr_nz (trace_data.addrs[i])); */ | |
1137 | /* OBSOLETE } */ | |
1138 | /* OBSOLETE } */ | |
1139 | /* OBSOLETE else */ | |
1140 | /* OBSOLETE printf_filtered ("No entries in trace buffer.\n"); */ | |
1141 | /* OBSOLETE */ | |
1142 | /* OBSOLETE printf_filtered ("Tracing is currently %s.\n", (tracing ? "on" : "off")); */ | |
1143 | /* OBSOLETE } */ | |
1144 | /* OBSOLETE */ | |
1145 | /* OBSOLETE /* Print the instruction at address MEMADDR in debugged memory, */ | |
1146 | /* OBSOLETE on STREAM. Returns length of the instruction, in bytes. */ */ | |
1147 | /* OBSOLETE */ | |
1148 | /* OBSOLETE static int */ | |
1149 | /* OBSOLETE print_insn (CORE_ADDR memaddr, struct ui_file *stream) */ | |
1150 | /* OBSOLETE { */ | |
1151 | /* OBSOLETE /* If there's no disassembler, something is very wrong. */ */ | |
1152 | /* OBSOLETE if (tm_print_insn == NULL) */ | |
1153 | /* OBSOLETE internal_error (__FILE__, __LINE__, */ | |
1154 | /* OBSOLETE "print_insn: no disassembler"); */ | |
1155 | /* OBSOLETE */ | |
1156 | /* OBSOLETE if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG) */ | |
1157 | /* OBSOLETE tm_print_insn_info.endian = BFD_ENDIAN_BIG; */ | |
1158 | /* OBSOLETE else */ | |
1159 | /* OBSOLETE tm_print_insn_info.endian = BFD_ENDIAN_LITTLE; */ | |
1160 | /* OBSOLETE return TARGET_PRINT_INSN (memaddr, &tm_print_insn_info); */ | |
1161 | /* OBSOLETE } */ | |
1162 | /* OBSOLETE */ | |
1163 | /* OBSOLETE void */ | |
1164 | /* OBSOLETE d30v_eva_prepare_to_trace (void) */ | |
1165 | /* OBSOLETE { */ | |
1166 | /* OBSOLETE if (!tracing) */ | |
1167 | /* OBSOLETE return; */ | |
1168 | /* OBSOLETE */ | |
1169 | /* OBSOLETE last_pc = read_register (PC_REGNUM); */ | |
1170 | /* OBSOLETE } */ | |
1171 | /* OBSOLETE */ | |
1172 | /* OBSOLETE /* Collect trace data from the target board and format it into a form */ | |
1173 | /* OBSOLETE more useful for display. */ */ | |
1174 | /* OBSOLETE */ | |
1175 | /* OBSOLETE void */ | |
1176 | /* OBSOLETE d30v_eva_get_trace_data (void) */ | |
1177 | /* OBSOLETE { */ | |
1178 | /* OBSOLETE int count, i, j, oldsize; */ | |
1179 | /* OBSOLETE int trace_addr, trace_seg, trace_cnt, next_cnt; */ | |
1180 | /* OBSOLETE unsigned int last_trace, trace_word, next_word; */ | |
1181 | /* OBSOLETE unsigned int *tmpspace; */ | |
1182 | /* OBSOLETE */ | |
1183 | /* OBSOLETE if (!tracing) */ | |
1184 | /* OBSOLETE return; */ | |
1185 | /* OBSOLETE */ | |
1186 | /* OBSOLETE tmpspace = xmalloc (65536 * sizeof (unsigned int)); */ | |
1187 | /* OBSOLETE */ | |
1188 | /* OBSOLETE last_trace = read_memory_unsigned_integer (DBBC_ADDR, 2) << 2; */ | |
1189 | /* OBSOLETE */ | |
1190 | /* OBSOLETE /* Collect buffer contents from the target, stopping when we reach */ | |
1191 | /* OBSOLETE the word recorded when execution resumed. */ */ | |
1192 | /* OBSOLETE */ | |
1193 | /* OBSOLETE count = 0; */ | |
1194 | /* OBSOLETE while (last_trace > 0) */ | |
1195 | /* OBSOLETE { */ | |
1196 | /* OBSOLETE QUIT; */ | |
1197 | /* OBSOLETE trace_word = */ | |
1198 | /* OBSOLETE read_memory_unsigned_integer (TRACE_BUFFER_BASE + last_trace, 4); */ | |
1199 | /* OBSOLETE trace_addr = trace_word & 0xffff; */ | |
1200 | /* OBSOLETE last_trace -= 4; */ | |
1201 | /* OBSOLETE /* Ignore an apparently nonsensical entry. */ */ | |
1202 | /* OBSOLETE if (trace_addr == 0xffd5) */ | |
1203 | /* OBSOLETE continue; */ | |
1204 | /* OBSOLETE tmpspace[count++] = trace_word; */ | |
1205 | /* OBSOLETE if (trace_addr == last_pc) */ | |
1206 | /* OBSOLETE break; */ | |
1207 | /* OBSOLETE if (count > 65535) */ | |
1208 | /* OBSOLETE break; */ | |
1209 | /* OBSOLETE } */ | |
1210 | /* OBSOLETE */ | |
1211 | /* OBSOLETE /* Move the data to the host-side trace buffer, adjusting counts to */ | |
1212 | /* OBSOLETE include the last instruction executed and transforming the address */ | |
1213 | /* OBSOLETE into something that GDB likes. */ */ | |
1214 | /* OBSOLETE */ | |
1215 | /* OBSOLETE for (i = 0; i < count; ++i) */ | |
1216 | /* OBSOLETE { */ | |
1217 | /* OBSOLETE trace_word = tmpspace[i]; */ | |
1218 | /* OBSOLETE next_word = ((i == 0) ? 0 : tmpspace[i - 1]); */ | |
1219 | /* OBSOLETE trace_addr = trace_word & 0xffff; */ | |
1220 | /* OBSOLETE next_cnt = (next_word >> 24) & 0xff; */ | |
1221 | /* OBSOLETE j = trace_data.size + count - i - 1; */ | |
1222 | /* OBSOLETE trace_data.addrs[j] = (trace_addr << 2) + 0x1000000; */ | |
1223 | /* OBSOLETE trace_data.counts[j] = next_cnt + 1; */ | |
1224 | /* OBSOLETE } */ | |
1225 | /* OBSOLETE */ | |
1226 | /* OBSOLETE oldsize = trace_data.size; */ | |
1227 | /* OBSOLETE trace_data.size += count; */ | |
1228 | /* OBSOLETE */ | |
1229 | /* OBSOLETE xfree (tmpspace); */ | |
1230 | /* OBSOLETE */ | |
1231 | /* OBSOLETE if (trace_display) */ | |
1232 | /* OBSOLETE display_trace (oldsize, trace_data.size); */ | |
1233 | /* OBSOLETE } */ | |
1234 | /* OBSOLETE */ | |
1235 | /* OBSOLETE static void */ | |
1236 | /* OBSOLETE tdisassemble_command (char *arg, int from_tty) */ | |
1237 | /* OBSOLETE { */ | |
1238 | /* OBSOLETE int i, count; */ | |
1239 | /* OBSOLETE CORE_ADDR low, high; */ | |
1240 | /* OBSOLETE char *space_index; */ | |
1241 | /* OBSOLETE */ | |
1242 | /* OBSOLETE if (!arg) */ | |
1243 | /* OBSOLETE { */ | |
1244 | /* OBSOLETE low = 0; */ | |
1245 | /* OBSOLETE high = trace_data.size; */ | |
1246 | /* OBSOLETE } */ | |
1247 | /* OBSOLETE else if (!(space_index = (char *) strchr (arg, ' '))) */ | |
1248 | /* OBSOLETE { */ | |
1249 | /* OBSOLETE low = parse_and_eval_address (arg); */ | |
1250 | /* OBSOLETE high = low + 5; */ | |
1251 | /* OBSOLETE } */ | |
1252 | /* OBSOLETE else */ | |
1253 | /* OBSOLETE { */ | |
1254 | /* OBSOLETE /* Two arguments. */ */ | |
1255 | /* OBSOLETE *space_index = '\0'; */ | |
1256 | /* OBSOLETE low = parse_and_eval_address (arg); */ | |
1257 | /* OBSOLETE high = parse_and_eval_address (space_index + 1); */ | |
1258 | /* OBSOLETE if (high < low) */ | |
1259 | /* OBSOLETE high = low; */ | |
1260 | /* OBSOLETE } */ | |
1261 | /* OBSOLETE */ | |
1262 | /* OBSOLETE printf_filtered ("Dump of trace from %s to %s:\n", */ | |
1263 | /* OBSOLETE paddr_u (low), */ | |
1264 | /* OBSOLETE paddr_u (high)); */ | |
1265 | /* OBSOLETE */ | |
1266 | /* OBSOLETE display_trace (low, high); */ | |
1267 | /* OBSOLETE */ | |
1268 | /* OBSOLETE printf_filtered ("End of trace dump.\n"); */ | |
1269 | /* OBSOLETE gdb_flush (gdb_stdout); */ | |
1270 | /* OBSOLETE } */ | |
1271 | /* OBSOLETE */ | |
1272 | /* OBSOLETE static void */ | |
1273 | /* OBSOLETE display_trace (int low, int high) */ | |
1274 | /* OBSOLETE { */ | |
1275 | /* OBSOLETE int i, count, trace_show_source, first, suppress; */ | |
1276 | /* OBSOLETE CORE_ADDR next_address; */ | |
1277 | /* OBSOLETE */ | |
1278 | /* OBSOLETE trace_show_source = default_trace_show_source; */ | |
1279 | /* OBSOLETE if (!have_full_symbols () && !have_partial_symbols ()) */ | |
1280 | /* OBSOLETE { */ | |
1281 | /* OBSOLETE trace_show_source = 0; */ | |
1282 | /* OBSOLETE printf_filtered ("No symbol table is loaded. Use the \"file\" command.\n"); */ | |
1283 | /* OBSOLETE printf_filtered ("Trace will not display any source.\n"); */ | |
1284 | /* OBSOLETE } */ | |
1285 | /* OBSOLETE */ | |
1286 | /* OBSOLETE first = 1; */ | |
1287 | /* OBSOLETE suppress = 0; */ | |
1288 | /* OBSOLETE for (i = low; i < high; ++i) */ | |
1289 | /* OBSOLETE { */ | |
1290 | /* OBSOLETE next_address = trace_data.addrs[i]; */ | |
1291 | /* OBSOLETE count = trace_data.counts[i]; */ | |
1292 | /* OBSOLETE while (count-- > 0) */ | |
1293 | /* OBSOLETE { */ | |
1294 | /* OBSOLETE QUIT; */ | |
1295 | /* OBSOLETE if (trace_show_source) */ | |
1296 | /* OBSOLETE { */ | |
1297 | /* OBSOLETE struct symtab_and_line sal, sal_prev; */ | |
1298 | /* OBSOLETE */ | |
1299 | /* OBSOLETE sal_prev = find_pc_line (next_address - 4, 0); */ | |
1300 | /* OBSOLETE sal = find_pc_line (next_address, 0); */ | |
1301 | /* OBSOLETE */ | |
1302 | /* OBSOLETE if (sal.symtab) */ | |
1303 | /* OBSOLETE { */ | |
1304 | /* OBSOLETE if (first || sal.line != sal_prev.line) */ | |
1305 | /* OBSOLETE print_source_lines (sal.symtab, sal.line, sal.line + 1, 0); */ | |
1306 | /* OBSOLETE suppress = 0; */ | |
1307 | /* OBSOLETE } */ | |
1308 | /* OBSOLETE else */ | |
1309 | /* OBSOLETE { */ | |
1310 | /* OBSOLETE if (!suppress) */ | |
1311 | /* OBSOLETE /* FIXME-32x64--assumes sal.pc fits in long. */ */ | |
1312 | /* OBSOLETE printf_filtered ("No source file for address %s.\n", */ | |
1313 | /* OBSOLETE local_hex_string ((unsigned long) sal.pc)); */ | |
1314 | /* OBSOLETE suppress = 1; */ | |
1315 | /* OBSOLETE } */ | |
1316 | /* OBSOLETE } */ | |
1317 | /* OBSOLETE first = 0; */ | |
1318 | /* OBSOLETE print_address (next_address, gdb_stdout); */ | |
1319 | /* OBSOLETE printf_filtered (":"); */ | |
1320 | /* OBSOLETE printf_filtered ("\t"); */ | |
1321 | /* OBSOLETE wrap_here (" "); */ | |
1322 | /* OBSOLETE next_address = next_address + print_insn (next_address, gdb_stdout); */ | |
1323 | /* OBSOLETE printf_filtered ("\n"); */ | |
1324 | /* OBSOLETE gdb_flush (gdb_stdout); */ | |
1325 | /* OBSOLETE } */ | |
1326 | /* OBSOLETE } */ | |
1327 | /* OBSOLETE } */ | |
1328 | /* OBSOLETE */ | |
1329 | /* OBSOLETE extern void (*target_resume_hook) (void); */ | |
1330 | /* OBSOLETE extern void (*target_wait_loop_hook) (void); */ | |
1331 | /* OBSOLETE */ | |
1332 | /* OBSOLETE void */ | |
1333 | /* OBSOLETE _initialize_d30v_tdep (void) */ | |
1334 | /* OBSOLETE { */ | |
1335 | /* OBSOLETE tm_print_insn = print_insn_d30v; */ | |
1336 | /* OBSOLETE */ | |
1337 | /* OBSOLETE target_resume_hook = d30v_eva_prepare_to_trace; */ | |
1338 | /* OBSOLETE target_wait_loop_hook = d30v_eva_get_trace_data; */ | |
1339 | /* OBSOLETE */ | |
1340 | /* OBSOLETE add_info ("flags", print_flags_command, "Print d30v flags."); */ | |
1341 | /* OBSOLETE */ | |
1342 | /* OBSOLETE add_com ("trace", class_support, trace_command, */ | |
1343 | /* OBSOLETE "Enable tracing of instruction execution."); */ | |
1344 | /* OBSOLETE */ | |
1345 | /* OBSOLETE add_com ("untrace", class_support, untrace_command, */ | |
1346 | /* OBSOLETE "Disable tracing of instruction execution."); */ | |
1347 | /* OBSOLETE */ | |
1348 | /* OBSOLETE add_com ("tdisassemble", class_vars, tdisassemble_command, */ | |
1349 | /* OBSOLETE "Disassemble the trace buffer.\n\ */ | |
1350 | /* OBSOLETE Two optional arguments specify a range of trace buffer entries\n\ */ | |
1351 | /* OBSOLETE as reported by info trace (NOT addresses!)."); */ | |
1352 | /* OBSOLETE */ | |
1353 | /* OBSOLETE add_info ("trace", trace_info, */ | |
1354 | /* OBSOLETE "Display info about the trace data buffer."); */ | |
1355 | /* OBSOLETE */ | |
1356 | /* OBSOLETE add_show_from_set (add_set_cmd ("tracedisplay", no_class, */ | |
1357 | /* OBSOLETE var_integer, (char *) &trace_display, */ | |
1358 | /* OBSOLETE "Set automatic display of trace.\n", &setlist), */ | |
1359 | /* OBSOLETE &showlist); */ | |
1360 | /* OBSOLETE add_show_from_set (add_set_cmd ("tracesource", no_class, */ | |
1361 | /* OBSOLETE var_integer, (char *) &default_trace_show_source, */ | |
1362 | /* OBSOLETE "Set display of source code with trace.\n", &setlist), */ | |
1363 | /* OBSOLETE &showlist); */ | |
1364 | /* OBSOLETE */ | |
1365 | /* OBSOLETE } */ |