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ppc-tdep.h
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1/* Target-dependent code for GDB, the GNU debugger.
2
3 Copyright (C) 2000-2023 Free Software Foundation, Inc.
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
9 the Free Software Foundation; either version 3 of the License, or
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
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19
20#ifndef PPC_TDEP_H
21#define PPC_TDEP_H
22
23#include "gdbarch.h"
24
25struct gdbarch;
26class frame_info_ptr;
27struct value;
28struct regcache;
29struct type;
30
31/* From ppc-sysv-tdep.c ... */
33 struct value *function,
34 struct type *valtype,
35 struct regcache *regcache,
36 gdb_byte *readbuf,
37 const gdb_byte *writebuf);
39 struct value *function,
40 struct type *valtype,
41 struct regcache *regcache,
42 gdb_byte *readbuf,
43 const gdb_byte *writebuf);
44
46 (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache,
47 CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp,
48 function_call_return_method return_method, CORE_ADDR struct_addr);
49
51 (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache,
52 CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp,
53 function_call_return_method return_method, CORE_ADDR struct_addr);
54
56 struct value *function,
57 struct type *valtype,
58 struct regcache *regcache,
59 gdb_byte *readbuf,
60 const gdb_byte *writebuf);
61
62/* From rs6000-tdep.c... */
63int altivec_register_p (struct gdbarch *gdbarch, int regno);
64int vsx_register_p (struct gdbarch *gdbarch, int regno);
65int spe_register_p (struct gdbarch *gdbarch, int regno);
66
67/* Return non-zero if the architecture described by GDBARCH has
68 floating-point registers (f0 --- f31 and fpscr). */
70
71/* Return non-zero if the architecture described by GDBARCH has
72 Altivec registers (vr0 --- vr31, vrsave and vscr). */
74
75/* Return non-zero if the architecture described by GDBARCH has
76 VSX registers (vsr0 --- vsr63). */
78std::vector<CORE_ADDR> ppc_deal_with_atomic_sequence
79 (struct regcache *regcache);
80
81
82/* Register set description. */
83
85{
86 /* General-purpose registers. */
88 int gpr_size; /* size for r0-31, pc, ps, lr, ctr. */
89 int xr_size; /* size for cr, xer, mq. */
97
98 /* Floating-point registers. */
102};
103
104extern void ppc_supply_reg (struct regcache *regcache, int regnum,
105 const gdb_byte *regs, size_t offset, int regsize);
106
107extern void ppc_collect_reg (const struct regcache *regcache, int regnum,
108 gdb_byte *regs, size_t offset, int regsize);
109
110/* Supply register REGNUM in the general-purpose register set REGSET
111 from the buffer specified by GREGS and LEN to register cache
112 REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
113
114extern void ppc_supply_gregset (const struct regset *regset,
115 struct regcache *regcache,
116 int regnum, const void *gregs, size_t len);
117
118/* Supply register REGNUM in the floating-point register set REGSET
119 from the buffer specified by FPREGS and LEN to register cache
120 REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
121
122extern void ppc_supply_fpregset (const struct regset *regset,
123 struct regcache *regcache,
124 int regnum, const void *fpregs, size_t len);
125
126/* Supply register REGNUM in the Altivec register set REGSET
127 from the buffer specified by VRREGS and LEN to register cache
128 REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
129
130extern void ppc_supply_vrregset (const struct regset *regset,
131 struct regcache *regcache,
132 int regnum, const void *vrregs, size_t len);
133
134/* Supply register REGNUM in the VSX register set REGSET
135 from the buffer specified by VSXREGS and LEN to register cache
136 REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
137
138extern void ppc_supply_vsxregset (const struct regset *regset,
139 struct regcache *regcache,
140 int regnum, const void *vsxregs, size_t len);
141
142/* Collect register REGNUM in the general-purpose register set
143 REGSET, from register cache REGCACHE into the buffer specified by
144 GREGS and LEN. If REGNUM is -1, do this for all registers in
145 REGSET. */
146
147extern void ppc_collect_gregset (const struct regset *regset,
148 const struct regcache *regcache,
149 int regnum, void *gregs, size_t len);
150
151/* Collect register REGNUM in the floating-point register set
152 REGSET, from register cache REGCACHE into the buffer specified by
153 FPREGS and LEN. If REGNUM is -1, do this for all registers in
154 REGSET. */
155
156extern void ppc_collect_fpregset (const struct regset *regset,
157 const struct regcache *regcache,
158 int regnum, void *fpregs, size_t len);
159
160/* Collect register REGNUM in the Altivec register set
161 REGSET from register cache REGCACHE into the buffer specified by
162 VRREGS and LEN. If REGNUM is -1, do this for all registers in
163 REGSET. */
164
165extern void ppc_collect_vrregset (const struct regset *regset,
166 const struct regcache *regcache,
167 int regnum, void *vrregs, size_t len);
168
169/* Collect register REGNUM in the VSX register set
170 REGSET from register cache REGCACHE into the buffer specified by
171 VSXREGS and LEN. If REGNUM is -1, do this for all registers in
172 REGSET. */
173
174extern void ppc_collect_vsxregset (const struct regset *regset,
175 const struct regcache *regcache,
176 int regnum, void *vsxregs, size_t len);
177
178/* Implementation of the gdbarch get_return_buf_addr hook. */
179
181
182/* Private data that this module attaches to struct gdbarch. */
183
184/* ELF ABI version used by the inferior. */
192
193/* Vector ABI used by the inferior. */
202
203/* long double ABI version used by the inferior. */
211
213 {
214 int wordsize = 0; /* Size in bytes of fixed-point word. */
215 int soft_float = 0; /* Avoid FP registers for arguments? */
216
217 enum powerpc_elf_abi elf_abi {}; /* ELF ABI version. */
218
219 /* Format to use for the "long double" data type. */
220 enum powerpc_long_double_abi long_double_abi {};
221
222 /* How to pass vector arguments. Never set to AUTO or LAST. */
223 enum powerpc_vector_abi vector_abi {};
224
225 int ppc_gp0_regnum = 0; /* GPR register 0 */
226 int ppc_toc_regnum = 0; /* TOC register */
227 int ppc_ps_regnum = 0; /* Processor (or machine) status (%msr) */
228 int ppc_cr_regnum = 0; /* Condition register */
229 int ppc_lr_regnum = 0; /* Link register */
230 int ppc_ctr_regnum = 0; /* Count register */
231 int ppc_xer_regnum = 0; /* Integer exception register */
232
233 /* Not all PPC and RS6000 variants will have the registers
234 represented below. A -1 is used to indicate that the register
235 is not present in this variant. */
236
237 /* Floating-point registers. */
238 int ppc_fp0_regnum = 0; /* Floating-point register 0. */
239 int ppc_fpscr_regnum = 0; /* fp status and condition register. */
240
241 /* Multiplier-Quotient Register (older POWER architectures only). */
243
244 /* POWER7 VSX registers. */
245 int ppc_vsr0_regnum = 0; /* First VSX register. */
246 int ppc_vsr0_upper_regnum = 0; /* First right most dword vsx register. */
247 int ppc_efpr0_regnum = 0; /* First Extended FP register. */
248
249 /* Altivec registers. */
250 int ppc_vr0_regnum = 0; /* First AltiVec register. */
251 int ppc_vrsave_regnum = 0; /* Last AltiVec register. */
252
253 /* Altivec pseudo-register vX aliases for the raw vrX
254 registers. */
256
257 /* SPE registers. */
258 int ppc_ev0_upper_regnum = 0; /* First GPR upper half register. */
259 int ppc_ev0_regnum = 0; /* First ev register. */
260 int ppc_acc_regnum = 0; /* SPE 'acc' register. */
261 int ppc_spefscr_regnum = 0; /* SPE 'spefscr' register. */
262
263 /* Program Priority Register. */
265
266 /* Data Stream Control Register. */
268
269 /* Target Address Register. */
271
272 /* Decimal 128 registers. */
273 int ppc_dl0_regnum = 0; /* First Decimal128 argument register pair. */
274
275 int have_ebb = 0;
276
277 /* PMU registers. */
283
284 /* Hardware Transactional Memory registers. */
293
294 /* HTM pseudo registers. */
298
299 /* Offset to ABI specific location where link register is saved. */
301
302 /* An array of integers, such that sim_regno[I] is the simulator
303 register number for GDB register number I, or -1 if the
304 simulator does not implement that register. */
305 int *sim_regno = nullptr;
306
307 /* ISA-specific types. */
308 struct type *ppc_builtin_type_vec64 = nullptr;
309 struct type *ppc_builtin_type_vec128 = nullptr;
310
311 int (*ppc_syscall_record) (struct regcache *regcache) = nullptr;
312};
313
314
315/* Constants for register set sizes. */
316enum
317 {
318 ppc_num_gprs = 32, /* 32 general-purpose registers. */
319 ppc_num_fprs = 32, /* 32 floating-point registers. */
320 ppc_num_srs = 16, /* 16 segment registers. */
321 ppc_num_vrs = 32, /* 32 Altivec vector registers. */
322 ppc_num_vshrs = 32, /* 32 doublewords (dword 1 of vs0~vs31). */
323 ppc_num_vsrs = 64, /* 64 VSX vector registers. */
324 ppc_num_efprs = 32 /* 32 Extended FP registers. */
325 };
326
327
328/* Register number constants. These are GDB internal register
329 numbers; they are not used for the simulator or remote targets.
330 Extra SPRs (those other than MQ, CTR, LR, XER, SPEFSCR) are given
331 numbers above PPC_NUM_REGS. So are segment registers and other
332 target-defined registers. */
333enum {
355
356 /* EBB registers. */
360
361 /* PMU registers. */
367
368 /* Hardware transactional memory registers. */
372
378
381
385
387
393
394/* Big enough to hold the size of the largest register in bytes. */
395#define PPC_MAX_REGISTER_SIZE 64
396
397#define PPC_IS_EBB_REGNUM(i) \
398 ((i) >= PPC_BESCR_REGNUM && (i) <= PPC_EBBRR_REGNUM)
399
400#define PPC_IS_PMU_REGNUM(i) \
401 ((i) >= PPC_MMCR0_REGNUM && (i) <= PPC_SIER_REGNUM)
402
403#define PPC_IS_TMSPR_REGNUM(i) \
404 ((i) >= PPC_TFHAR_REGNUM && (i) <= PPC_TFIAR_REGNUM)
405
406#define PPC_IS_CKPTGP_REGNUM(i) \
407 ((i) >= PPC_CR0_REGNUM && (i) <= PPC_CCTR_REGNUM)
408
409#define PPC_IS_CKPTFP_REGNUM(i) \
410 ((i) >= PPC_CF0_REGNUM && (i) <= PPC_CFPSCR_REGNUM)
411
412#define PPC_IS_CKPTVMX_REGNUM(i) \
413 ((i) >= PPC_CVR0_REGNUM && (i) <= PPC_CVRSAVE_REGNUM)
414
415#define PPC_IS_CKPTVSX_REGNUM(i) \
416 ((i) >= PPC_CVSR0_UPPER_REGNUM && (i) < (PPC_CVSR0_UPPER_REGNUM + 32))
417
418/* An instruction to match. */
419
421{
422 unsigned int mask; /* mask the insn with this... */
423 unsigned int data; /* ...and see if it matches this. */
424 int optional; /* If non-zero, this insn may be absent. */
425};
426
427extern int ppc_insns_match_pattern (frame_info_ptr frame, CORE_ADDR pc,
428 const struct ppc_insn_pattern *pattern,
429 unsigned int *insns);
430extern CORE_ADDR ppc_insn_d_field (unsigned int insn);
431
432extern CORE_ADDR ppc_insn_ds_field (unsigned int insn);
433extern CORE_ADDR ppc_insn_prefix_dform (unsigned int insn1,
434 unsigned int insn2);
435
436extern int ppc_process_record (struct gdbarch *gdbarch,
437 struct regcache *regcache, CORE_ADDR addr);
438
439/* Instruction size. */
440#define PPC_INSN_SIZE 4
441
442/* Estimate for the maximum number of instructions in a function epilogue. */
443#define PPC_MAX_EPILOGUE_INSTRUCTIONS 52
444
446{
447 /* This is an optional in case we add more fields to ppc_inferior_data, we
448 don't want it instantiated as soon as we get the ppc_inferior_data for an
449 inferior. */
450 gdb::optional<displaced_step_buffers> disp_step_buf;
451};
452
454
455extern const struct target_desc *tdesc_powerpc_vsx64l;
456extern const struct target_desc *tdesc_powerpc_vsx64;
457extern const struct target_desc *tdesc_powerpc_vsx32;
458extern const struct target_desc *tdesc_powerpc_altivec64;
459extern const struct target_desc *tdesc_powerpc_altivec32;
460
461#endif /* ppc-tdep.h */
int regnum
return_value_convention
Definition defs.h:257
function_call_return_method
Definition gdbarch.h:114
void ppc_collect_gregset(const struct regset *regset, const struct regcache *regcache, int regnum, void *gregs, size_t len)
powerpc_elf_abi
Definition ppc-tdep.h:186
@ POWERPC_ELF_LAST
Definition ppc-tdep.h:190
@ POWERPC_ELF_V1
Definition ppc-tdep.h:188
@ POWERPC_ELF_V2
Definition ppc-tdep.h:189
@ POWERPC_ELF_AUTO
Definition ppc-tdep.h:187
CORE_ADDR ppc_sysv_abi_push_dummy_call(struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, function_call_return_method return_method, CORE_ADDR struct_addr)
CORE_ADDR ppc_sysv_get_return_buf_addr(type *, frame_info_ptr)
int altivec_register_p(struct gdbarch *gdbarch, int regno)
const struct target_desc * tdesc_powerpc_altivec64
const struct target_desc * tdesc_powerpc_altivec32
int spe_register_p(struct gdbarch *gdbarch, int regno)
CORE_ADDR ppc_insn_d_field(unsigned int insn)
void ppc_supply_fpregset(const struct regset *regset, struct regcache *regcache, int regnum, const void *fpregs, size_t len)
const struct target_desc * tdesc_powerpc_vsx64
std::vector< CORE_ADDR > ppc_deal_with_atomic_sequence(struct regcache *regcache)
CORE_ADDR ppc64_sysv_abi_push_dummy_call(struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, function_call_return_method return_method, CORE_ADDR struct_addr)
int vsx_support_p(struct gdbarch *gdbarch)
CORE_ADDR ppc_insn_prefix_dform(unsigned int insn1, unsigned int insn2)
const struct target_desc * tdesc_powerpc_vsx32
void ppc_collect_vrregset(const struct regset *regset, const struct regcache *regcache, int regnum, void *vrregs, size_t len)
powerpc_long_double_abi
Definition ppc-tdep.h:205
@ POWERPC_LONG_DOUBLE_IBM128
Definition ppc-tdep.h:207
@ POWERPC_LONG_DOUBLE_LAST
Definition ppc-tdep.h:209
@ POWERPC_LONG_DOUBLE_IEEE128
Definition ppc-tdep.h:208
@ POWERPC_LONG_DOUBLE_AUTO
Definition ppc-tdep.h:206
int ppc_insns_match_pattern(frame_info_ptr frame, CORE_ADDR pc, const struct ppc_insn_pattern *pattern, unsigned int *insns)
void ppc_supply_vsxregset(const struct regset *regset, struct regcache *regcache, int regnum, const void *vsxregs, size_t len)
void ppc_collect_reg(const struct regcache *regcache, int regnum, gdb_byte *regs, size_t offset, int regsize)
int ppc_altivec_support_p(struct gdbarch *gdbarch)
CORE_ADDR ppc_insn_ds_field(unsigned int insn)
int ppc_floating_point_unit_p(struct gdbarch *gdbarch)
enum return_value_convention ppc64_sysv_abi_return_value(struct gdbarch *gdbarch, struct value *function, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf)
void ppc_supply_reg(struct regcache *regcache, int regnum, const gdb_byte *regs, size_t offset, int regsize)
ppc_inferior_data * get_ppc_per_inferior(inferior *inf)
void ppc_collect_vsxregset(const struct regset *regset, const struct regcache *regcache, int regnum, void *vsxregs, size_t len)
enum return_value_convention ppc_sysv_abi_return_value(struct gdbarch *gdbarch, struct value *function, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf)
void ppc_supply_gregset(const struct regset *regset, struct regcache *regcache, int regnum, const void *gregs, size_t len)
int ppc_process_record(struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr)
@ ppc_num_gprs
Definition ppc-tdep.h:318
@ ppc_num_vrs
Definition ppc-tdep.h:321
@ ppc_num_vshrs
Definition ppc-tdep.h:322
@ ppc_num_fprs
Definition ppc-tdep.h:319
@ ppc_num_vsrs
Definition ppc-tdep.h:323
@ ppc_num_efprs
Definition ppc-tdep.h:324
@ ppc_num_srs
Definition ppc-tdep.h:320
powerpc_vector_abi
Definition ppc-tdep.h:195
@ POWERPC_VEC_AUTO
Definition ppc-tdep.h:196
@ POWERPC_VEC_SPE
Definition ppc-tdep.h:199
@ POWERPC_VEC_GENERIC
Definition ppc-tdep.h:197
@ POWERPC_VEC_LAST
Definition ppc-tdep.h:200
@ POWERPC_VEC_ALTIVEC
Definition ppc-tdep.h:198
const struct target_desc * tdesc_powerpc_vsx64l
@ PPC_CXER_REGNUM
Definition ppc-tdep.h:375
@ PPC_MMCR0_REGNUM
Definition ppc-tdep.h:362
@ PPC_CLR_REGNUM
Definition ppc-tdep.h:376
@ PPC_XER_REGNUM
Definition ppc-tdep.h:341
@ PPC_CVSCR_REGNUM
Definition ppc-tdep.h:383
@ PPC_CVRSAVE_REGNUM
Definition ppc-tdep.h:384
@ PPC_CTR_REGNUM
Definition ppc-tdep.h:340
@ PPC_SIER_REGNUM
Definition ppc-tdep.h:366
@ PPC_DSCR_REGNUM
Definition ppc-tdep.h:353
@ PPC_VSR0_UPPER_REGNUM
Definition ppc-tdep.h:350
@ PPC_TAR_REGNUM
Definition ppc-tdep.h:354
@ PPC_VRSAVE_REGNUM
Definition ppc-tdep.h:349
@ PPC_CTAR_REGNUM
Definition ppc-tdep.h:390
@ PPC_TFIAR_REGNUM
Definition ppc-tdep.h:371
@ PPC_CCTR_REGNUM
Definition ppc-tdep.h:377
@ PPC_TFHAR_REGNUM
Definition ppc-tdep.h:369
@ PPC_CR_REGNUM
Definition ppc-tdep.h:338
@ PPC_MQ_REGNUM
Definition ppc-tdep.h:343
@ PPC_CVSR0_UPPER_REGNUM
Definition ppc-tdep.h:386
@ PPC_CDSCR_REGNUM
Definition ppc-tdep.h:389
@ PPC_BESCR_REGNUM
Definition ppc-tdep.h:357
@ PPC_SPE_ACC_REGNUM
Definition ppc-tdep.h:345
@ PPC_CPPR_REGNUM
Definition ppc-tdep.h:388
@ PPC_SIAR_REGNUM
Definition ppc-tdep.h:364
@ PPC_TEXASR_REGNUM
Definition ppc-tdep.h:370
@ PPC_CVR0_REGNUM
Definition ppc-tdep.h:382
@ PPC_SPE_UPPER_GP0_REGNUM
Definition ppc-tdep.h:344
@ PPC_R0_REGNUM
Definition ppc-tdep.h:334
@ PPC_VR0_REGNUM
Definition ppc-tdep.h:347
@ PPC_SPE_FSCR_REGNUM
Definition ppc-tdep.h:346
@ PPC_PC_REGNUM
Definition ppc-tdep.h:336
@ PPC_EBBRR_REGNUM
Definition ppc-tdep.h:359
@ PPC_CCR_REGNUM
Definition ppc-tdep.h:374
@ PPC_NUM_REGS
Definition ppc-tdep.h:391
@ PPC_CFPSCR_REGNUM
Definition ppc-tdep.h:380
@ PPC_VSR31_UPPER_REGNUM
Definition ppc-tdep.h:351
@ PPC_EBBHR_REGNUM
Definition ppc-tdep.h:358
@ PPC_LR_REGNUM
Definition ppc-tdep.h:339
@ PPC_SDAR_REGNUM
Definition ppc-tdep.h:365
@ PPC_VSCR_REGNUM
Definition ppc-tdep.h:348
@ PPC_MSR_REGNUM
Definition ppc-tdep.h:337
@ PPC_CF0_REGNUM
Definition ppc-tdep.h:379
@ PPC_FPSCR_REGNUM
Definition ppc-tdep.h:342
@ PPC_PPR_REGNUM
Definition ppc-tdep.h:352
@ PPC_F0_REGNUM
Definition ppc-tdep.h:335
@ PPC_CR0_REGNUM
Definition ppc-tdep.h:373
@ PPC_MMCR2_REGNUM
Definition ppc-tdep.h:363
int vsx_register_p(struct gdbarch *gdbarch, int regno)
enum return_value_convention ppc_sysv_abi_broken_return_value(struct gdbarch *gdbarch, struct value *function, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf)
void ppc_collect_fpregset(const struct regset *regset, const struct regcache *regcache, int regnum, void *fpregs, size_t len)
void ppc_supply_vrregset(const struct regset *regset, struct regcache *regcache, int regnum, const void *vrregs, size_t len)
sim_regno
Definition sim-regno.h:30
Definition gnu-nat.c:153
int ppc_ev0_upper_regnum
Definition ppc-tdep.h:258
struct type * ppc_builtin_type_vec128
Definition ppc-tdep.h:309
struct type * ppc_builtin_type_vec64
Definition ppc-tdep.h:308
int(* ppc_syscall_record)(struct regcache *regcache)
Definition ppc-tdep.h:311
int ppc_vsr0_upper_regnum
Definition ppc-tdep.h:246
int ppc_v0_alias_regnum
Definition ppc-tdep.h:255
gdb::optional< displaced_step_buffers > disp_step_buf
Definition ppc-tdep.h:450
unsigned int data
Definition ppc-tdep.h:423
unsigned int mask
Definition ppc-tdep.h:422
Definition value.h:130