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9aa1e687 | 1 | /* Target-dependent code for GDB, the GNU debugger. |
f9be684a | 2 | |
197e01b6 | 3 | Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 |
a0c75879 | 4 | Free Software Foundation, Inc. |
9aa1e687 KB |
5 | |
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
197e01b6 EZ |
20 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
21 | Boston, MA 02110-1301, USA. */ | |
9aa1e687 | 22 | |
3a1c5313 AC |
23 | #ifndef PPC_TDEP_H |
24 | #define PPC_TDEP_H | |
25 | ||
da3331ec | 26 | struct gdbarch; |
3a1c5313 AC |
27 | struct frame_info; |
28 | struct value; | |
4a4b3fed | 29 | struct regcache; |
221c12ff | 30 | struct type; |
3a1c5313 | 31 | |
9aa1e687 | 32 | /* From ppc-linux-tdep.c... */ |
05580c65 AC |
33 | enum return_value_convention ppc_sysv_abi_return_value (struct gdbarch *gdbarch, |
34 | struct type *valtype, | |
35 | struct regcache *regcache, | |
50fd1280 AC |
36 | gdb_byte *readbuf, |
37 | const gdb_byte *writebuf); | |
05580c65 AC |
38 | enum return_value_convention ppc_sysv_abi_broken_return_value (struct gdbarch *gdbarch, |
39 | struct type *valtype, | |
40 | struct regcache *regcache, | |
50fd1280 AC |
41 | gdb_byte *readbuf, |
42 | const gdb_byte *writebuf); | |
77b2b6d4 | 43 | CORE_ADDR ppc_sysv_abi_push_dummy_call (struct gdbarch *gdbarch, |
7d9b040b | 44 | struct value *function, |
77b2b6d4 AC |
45 | struct regcache *regcache, |
46 | CORE_ADDR bp_addr, int nargs, | |
47 | struct value **args, CORE_ADDR sp, | |
48 | int struct_return, | |
49 | CORE_ADDR struct_addr); | |
8be9034a | 50 | CORE_ADDR ppc64_sysv_abi_push_dummy_call (struct gdbarch *gdbarch, |
7d9b040b | 51 | struct value *function, |
8be9034a AC |
52 | struct regcache *regcache, |
53 | CORE_ADDR bp_addr, int nargs, | |
54 | struct value **args, CORE_ADDR sp, | |
55 | int struct_return, | |
56 | CORE_ADDR struct_addr); | |
6066c3de AC |
57 | CORE_ADDR ppc64_sysv_abi_adjust_breakpoint_address (struct gdbarch *gdbarch, |
58 | CORE_ADDR bpaddr); | |
50fd1280 AC |
59 | int ppc_linux_memory_remove_breakpoint (CORE_ADDR addr, |
60 | gdb_byte *contents_cache); | |
6ded7999 | 61 | struct link_map_offsets *ppc_linux_svr4_fetch_link_map_offsets (void); |
f9be684a AC |
62 | void ppc_linux_supply_gregset (struct regcache *regcache, |
63 | int regnum, const void *gregs, size_t size, | |
64 | int wordsize); | |
65 | void ppc_linux_supply_fpregset (const struct regset *regset, | |
66 | struct regcache *regcache, | |
67 | int regnum, const void *gregs, size_t size); | |
9aa1e687 | 68 | |
05580c65 AC |
69 | enum return_value_convention ppc64_sysv_abi_return_value (struct gdbarch *gdbarch, |
70 | struct type *valtype, | |
71 | struct regcache *regcache, | |
50fd1280 AC |
72 | gdb_byte *readbuf, |
73 | const gdb_byte *writebuf); | |
9aa1e687 KB |
74 | |
75 | /* From rs6000-tdep.c... */ | |
1fcc0bb8 | 76 | int altivec_register_p (int regno); |
867e2dc5 | 77 | int spe_register_p (int regno); |
9aa1e687 | 78 | |
383f0f5b JB |
79 | /* Return non-zero if the architecture described by GDBARCH has |
80 | floating-point registers (f0 --- f31 and fpscr). */ | |
0a613259 AC |
81 | int ppc_floating_point_unit_p (struct gdbarch *gdbarch); |
82 | ||
d195bc9f MK |
83 | /* Register set description. */ |
84 | ||
85 | struct ppc_reg_offsets | |
86 | { | |
87 | /* General-purpose registers. */ | |
88 | int r0_offset; | |
89 | int pc_offset; | |
90 | int ps_offset; | |
91 | int cr_offset; | |
92 | int lr_offset; | |
93 | int ctr_offset; | |
94 | int xer_offset; | |
95 | int mq_offset; | |
96 | ||
97 | /* Floating-point registers. */ | |
98 | int f0_offset; | |
99 | int fpscr_offset; | |
100 | ||
101 | /* AltiVec registers. */ | |
102 | int vr0_offset; | |
103 | int vscr_offset; | |
104 | int vrsave_offset; | |
105 | }; | |
106 | ||
107 | /* Supply register REGNUM in the general-purpose register set REGSET | |
108 | from the buffer specified by GREGS and LEN to register cache | |
109 | REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */ | |
110 | ||
111 | extern void ppc_supply_gregset (const struct regset *regset, | |
112 | struct regcache *regcache, | |
113 | int regnum, const void *gregs, size_t len); | |
114 | ||
115 | /* Supply register REGNUM in the floating-point register set REGSET | |
116 | from the buffer specified by FPREGS and LEN to register cache | |
117 | REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */ | |
118 | ||
119 | extern void ppc_supply_fpregset (const struct regset *regset, | |
120 | struct regcache *regcache, | |
121 | int regnum, const void *fpregs, size_t len); | |
122 | ||
123 | /* Collect register REGNUM in the general-purpose register set | |
124 | REGSET. from register cache REGCACHE into the buffer specified by | |
125 | GREGS and LEN. If REGNUM is -1, do this for all registers in | |
126 | REGSET. */ | |
127 | ||
128 | extern void ppc_collect_gregset (const struct regset *regset, | |
129 | const struct regcache *regcache, | |
130 | int regnum, void *gregs, size_t len); | |
131 | ||
132 | /* Collect register REGNUM in the floating-point register set | |
133 | REGSET. from register cache REGCACHE into the buffer specified by | |
134 | FPREGS and LEN. If REGNUM is -1, do this for all registers in | |
135 | REGSET. */ | |
136 | ||
137 | extern void ppc_collect_fpregset (const struct regset *regset, | |
138 | const struct regcache *regcache, | |
139 | int regnum, void *fpregs, size_t len); | |
140 | ||
2188cbdd EZ |
141 | /* Private data that this module attaches to struct gdbarch. */ |
142 | ||
143 | struct gdbarch_tdep | |
144 | { | |
145 | int wordsize; /* size in bytes of fixed-point word */ | |
2188cbdd EZ |
146 | const struct reg *regs; /* from current variant */ |
147 | int ppc_gp0_regnum; /* GPR register 0 */ | |
2188cbdd EZ |
148 | int ppc_toc_regnum; /* TOC register */ |
149 | int ppc_ps_regnum; /* Processor (or machine) status (%msr) */ | |
150 | int ppc_cr_regnum; /* Condition register */ | |
151 | int ppc_lr_regnum; /* Link register */ | |
152 | int ppc_ctr_regnum; /* Count register */ | |
153 | int ppc_xer_regnum; /* Integer exception register */ | |
383f0f5b | 154 | |
826d5376 PG |
155 | /* Not all PPC and RS6000 variants will have the registers |
156 | represented below. A -1 is used to indicate that the register | |
157 | is not present in this variant. */ | |
158 | ||
159 | /* Floating-point registers. */ | |
366f009f | 160 | int ppc_fp0_regnum; /* floating-point register 0 */ |
826d5376 PG |
161 | int ppc_fpscr_regnum; /* fp status and condition register */ |
162 | ||
163 | /* Segment registers. */ | |
164 | int ppc_sr0_regnum; /* segment register 0 */ | |
383f0f5b | 165 | |
826d5376 PG |
166 | /* Multiplier-Quotient Register (older POWER architectures only). */ |
167 | int ppc_mq_regnum; | |
f86a7158 | 168 | |
826d5376 | 169 | /* Altivec registers. */ |
1fcc0bb8 EZ |
170 | int ppc_vr0_regnum; /* First AltiVec register */ |
171 | int ppc_vrsave_regnum; /* Last AltiVec register */ | |
826d5376 PG |
172 | |
173 | /* SPE registers. */ | |
6ced10dd | 174 | int ppc_ev0_upper_regnum; /* First GPR upper half register */ |
c8001721 EZ |
175 | int ppc_ev0_regnum; /* First ev register */ |
176 | int ppc_ev31_regnum; /* Last ev register */ | |
867e2dc5 JB |
177 | int ppc_acc_regnum; /* SPE 'acc' register */ |
178 | int ppc_spefscr_regnum; /* SPE 'spefscr' register */ | |
826d5376 PG |
179 | |
180 | /* Offset to ABI specific location where link register is saved. */ | |
181 | int lr_frame_offset; | |
9f643768 JB |
182 | |
183 | /* An array of integers, such that sim_regno[I] is the simulator | |
184 | register number for GDB register number I, or -1 if the | |
185 | simulator does not implement that register. */ | |
186 | int *sim_regno; | |
2188cbdd | 187 | }; |
3a1c5313 | 188 | |
b967e06f JB |
189 | |
190 | /* Constants for register set sizes. */ | |
191 | enum | |
192 | { | |
8bf659e8 | 193 | ppc_num_gprs = 32, /* 32 general-purpose registers */ |
cc98b5cc | 194 | ppc_num_fprs = 32, /* 32 floating-point registers */ |
8f088af7 | 195 | ppc_num_srs = 16, /* 16 segment registers */ |
cc98b5cc | 196 | ppc_num_vrs = 32 /* 32 Altivec vector registers */ |
b967e06f JB |
197 | }; |
198 | ||
0ea0ec5f JB |
199 | |
200 | /* Constants for SPR register numbers. These are *not* GDB register | |
201 | numbers: they are the numbers used in the PowerPC ISA itself to | |
202 | refer to these registers. | |
203 | ||
204 | This table includes all the SPRs from all the variants I could find | |
205 | documentation for. | |
206 | ||
207 | There may be registers from different PowerPC variants assigned the | |
208 | same number, but that's fine: GDB and the SIM always use the | |
209 | numbers in the context of a particular variant, so it's not | |
210 | ambiguous. | |
211 | ||
212 | We need to deviate from the naming pattern when variants have | |
213 | special-purpose registers of the same name, but with different | |
214 | numbers. Fortunately, this is rare: look below to see how we | |
215 | handle the 'tcr' registers on the 403/403GX and 602. */ | |
216 | ||
217 | enum | |
218 | { | |
219 | ppc_spr_mq = 0, | |
220 | ppc_spr_xer = 1, | |
221 | ppc_spr_rtcu = 4, | |
222 | ppc_spr_rtcl = 5, | |
223 | ppc_spr_lr = 8, | |
224 | ppc_spr_ctr = 9, | |
225 | ppc_spr_cnt = 9, | |
226 | ppc_spr_dsisr = 18, | |
227 | ppc_spr_dar = 19, | |
228 | ppc_spr_dec = 22, | |
229 | ppc_spr_sdr1 = 25, | |
230 | ppc_spr_srr0 = 26, | |
231 | ppc_spr_srr1 = 27, | |
232 | ppc_spr_eie = 80, | |
233 | ppc_spr_eid = 81, | |
234 | ppc_spr_nri = 82, | |
235 | ppc_spr_sp = 102, | |
236 | ppc_spr_cmpa = 144, | |
237 | ppc_spr_cmpb = 145, | |
238 | ppc_spr_cmpc = 146, | |
239 | ppc_spr_cmpd = 147, | |
240 | ppc_spr_icr = 148, | |
241 | ppc_spr_der = 149, | |
242 | ppc_spr_counta = 150, | |
243 | ppc_spr_countb = 151, | |
244 | ppc_spr_cmpe = 152, | |
245 | ppc_spr_cmpf = 153, | |
246 | ppc_spr_cmpg = 154, | |
247 | ppc_spr_cmph = 155, | |
248 | ppc_spr_lctrl1 = 156, | |
249 | ppc_spr_lctrl2 = 157, | |
250 | ppc_spr_ictrl = 158, | |
251 | ppc_spr_bar = 159, | |
252 | ppc_spr_vrsave = 256, | |
253 | ppc_spr_sprg0 = 272, | |
254 | ppc_spr_sprg1 = 273, | |
255 | ppc_spr_sprg2 = 274, | |
256 | ppc_spr_sprg3 = 275, | |
5109a438 | 257 | ppc_spr_asr = 280, |
0ea0ec5f JB |
258 | ppc_spr_ear = 282, |
259 | ppc_spr_tbl = 284, | |
260 | ppc_spr_tbu = 285, | |
261 | ppc_spr_pvr = 287, | |
262 | ppc_spr_spefscr = 512, | |
263 | ppc_spr_ibat0u = 528, | |
264 | ppc_spr_ibat0l = 529, | |
265 | ppc_spr_ibat1u = 530, | |
266 | ppc_spr_ibat1l = 531, | |
267 | ppc_spr_ibat2u = 532, | |
268 | ppc_spr_ibat2l = 533, | |
269 | ppc_spr_ibat3u = 534, | |
270 | ppc_spr_ibat3l = 535, | |
271 | ppc_spr_dbat0u = 536, | |
272 | ppc_spr_dbat0l = 537, | |
273 | ppc_spr_dbat1u = 538, | |
274 | ppc_spr_dbat1l = 539, | |
275 | ppc_spr_dbat2u = 540, | |
276 | ppc_spr_dbat2l = 541, | |
277 | ppc_spr_dbat3u = 542, | |
278 | ppc_spr_dbat3l = 543, | |
279 | ppc_spr_ic_cst = 560, | |
280 | ppc_spr_ic_adr = 561, | |
281 | ppc_spr_ic_dat = 562, | |
282 | ppc_spr_dc_cst = 568, | |
283 | ppc_spr_dc_adr = 569, | |
284 | ppc_spr_dc_dat = 570, | |
285 | ppc_spr_dpdr = 630, | |
286 | ppc_spr_dpir = 631, | |
287 | ppc_spr_immr = 638, | |
288 | ppc_spr_mi_ctr = 784, | |
289 | ppc_spr_mi_ap = 786, | |
290 | ppc_spr_mi_epn = 787, | |
291 | ppc_spr_mi_twc = 789, | |
292 | ppc_spr_mi_rpn = 790, | |
293 | ppc_spr_mi_cam = 816, | |
294 | ppc_spr_mi_ram0 = 817, | |
295 | ppc_spr_mi_ram1 = 818, | |
296 | ppc_spr_md_ctr = 792, | |
297 | ppc_spr_m_casid = 793, | |
298 | ppc_spr_md_ap = 794, | |
299 | ppc_spr_md_epn = 795, | |
5109a438 | 300 | ppc_spr_m_twb = 796, |
0ea0ec5f JB |
301 | ppc_spr_md_twc = 797, |
302 | ppc_spr_md_rpn = 798, | |
303 | ppc_spr_m_tw = 799, | |
5109a438 JB |
304 | ppc_spr_mi_dbcam = 816, |
305 | ppc_spr_mi_dbram0 = 817, | |
306 | ppc_spr_mi_dbram1 = 818, | |
0ea0ec5f | 307 | ppc_spr_md_dbcam = 824, |
5109a438 | 308 | ppc_spr_md_cam = 824, |
0ea0ec5f | 309 | ppc_spr_md_dbram0 = 825, |
5109a438 | 310 | ppc_spr_md_ram0 = 825, |
0ea0ec5f | 311 | ppc_spr_md_dbram1 = 826, |
5109a438 | 312 | ppc_spr_md_ram1 = 826, |
0ea0ec5f JB |
313 | ppc_spr_ummcr0 = 936, |
314 | ppc_spr_upmc1 = 937, | |
315 | ppc_spr_upmc2 = 938, | |
316 | ppc_spr_usia = 939, | |
317 | ppc_spr_ummcr1 = 940, | |
318 | ppc_spr_upmc3 = 941, | |
319 | ppc_spr_upmc4 = 942, | |
320 | ppc_spr_zpr = 944, | |
321 | ppc_spr_pid = 945, | |
322 | ppc_spr_mmcr0 = 952, | |
323 | ppc_spr_pmc1 = 953, | |
324 | ppc_spr_sgr = 953, | |
325 | ppc_spr_pmc2 = 954, | |
326 | ppc_spr_dcwr = 954, | |
327 | ppc_spr_sia = 955, | |
328 | ppc_spr_mmcr1 = 956, | |
329 | ppc_spr_pmc3 = 957, | |
330 | ppc_spr_pmc4 = 958, | |
331 | ppc_spr_sda = 959, | |
332 | ppc_spr_tbhu = 972, | |
333 | ppc_spr_tblu = 973, | |
334 | ppc_spr_dmiss = 976, | |
335 | ppc_spr_dcmp = 977, | |
336 | ppc_spr_hash1 = 978, | |
337 | ppc_spr_hash2 = 979, | |
338 | ppc_spr_icdbdr = 979, | |
339 | ppc_spr_imiss = 980, | |
340 | ppc_spr_esr = 980, | |
341 | ppc_spr_icmp = 981, | |
342 | ppc_spr_dear = 981, | |
343 | ppc_spr_rpa = 982, | |
344 | ppc_spr_evpr = 982, | |
345 | ppc_spr_cdbcr = 983, | |
346 | ppc_spr_tsr = 984, | |
347 | ppc_spr_602_tcr = 984, | |
348 | ppc_spr_403_tcr = 986, | |
349 | ppc_spr_ibr = 986, | |
350 | ppc_spr_pit = 987, | |
351 | ppc_spr_esasrr = 988, | |
352 | ppc_spr_tbhi = 988, | |
353 | ppc_spr_tblo = 989, | |
354 | ppc_spr_srr2 = 990, | |
355 | ppc_spr_sebr = 990, | |
356 | ppc_spr_srr3 = 991, | |
357 | ppc_spr_ser = 991, | |
358 | ppc_spr_hid0 = 1008, | |
359 | ppc_spr_dbsr = 1008, | |
360 | ppc_spr_hid1 = 1009, | |
361 | ppc_spr_iabr = 1010, | |
362 | ppc_spr_dbcr = 1010, | |
363 | ppc_spr_iac1 = 1012, | |
364 | ppc_spr_dabr = 1013, | |
365 | ppc_spr_iac2 = 1013, | |
366 | ppc_spr_dac1 = 1014, | |
367 | ppc_spr_dac2 = 1015, | |
368 | ppc_spr_l2cr = 1017, | |
369 | ppc_spr_dccr = 1018, | |
370 | ppc_spr_ictc = 1019, | |
371 | ppc_spr_iccr = 1019, | |
372 | ppc_spr_thrm1 = 1020, | |
373 | ppc_spr_pbl1 = 1020, | |
374 | ppc_spr_thrm2 = 1021, | |
375 | ppc_spr_pbu1 = 1021, | |
376 | ppc_spr_thrm3 = 1022, | |
377 | ppc_spr_pbl2 = 1022, | |
378 | ppc_spr_fpecr = 1022, | |
379 | ppc_spr_lt = 1022, | |
380 | ppc_spr_pir = 1023, | |
381 | ppc_spr_pbu2 = 1023 | |
382 | }; | |
383 | ||
a0c75879 MK |
384 | /* Instruction size. */ |
385 | #define PPC_INSN_SIZE 4 | |
386 | ||
0d1243d9 PG |
387 | /* Estimate for the maximum number of instrctions in a function epilogue. */ |
388 | #define PPC_MAX_EPILOGUE_INSTRUCTIONS 52 | |
389 | ||
a0c75879 | 390 | #endif /* ppc-tdep.h */ |