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1 /* Target-dependent code for GDB, the GNU debugger.
2 
3  Copyright (C) 2000-2015 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 struct gdbarch;
24 struct frame_info;
25 struct value;
26 struct regcache;
27 struct type;
28 
29 /* From ppc-sysv-tdep.c ... */
31  struct value *function,
32  struct type *valtype,
33  struct regcache *regcache,
34  gdb_byte *readbuf,
35  const gdb_byte *writebuf);
37  struct value *function,
38  struct type *valtype,
39  struct regcache *regcache,
40  gdb_byte *readbuf,
41  const gdb_byte *writebuf);
43  struct value *function,
44  struct regcache *regcache,
45  CORE_ADDR bp_addr, int nargs,
46  struct value **args, CORE_ADDR sp,
47  int struct_return,
48  CORE_ADDR struct_addr);
50  struct value *function,
51  struct regcache *regcache,
52  CORE_ADDR bp_addr, int nargs,
53  struct value **args, CORE_ADDR sp,
54  int struct_return,
55  CORE_ADDR struct_addr);
57  struct value *function,
58  struct type *valtype,
59  struct regcache *regcache,
60  gdb_byte *readbuf,
61  const gdb_byte *writebuf);
62 
63 /* From rs6000-tdep.c... */
64 int altivec_register_p (struct gdbarch *gdbarch, int regno);
65 int vsx_register_p (struct gdbarch *gdbarch, int regno);
66 int spe_register_p (struct gdbarch *gdbarch, int regno);
67 
68 /* Return non-zero if the architecture described by GDBARCH has
69  floating-point registers (f0 --- f31 and fpscr). */
71 
72 /* Return non-zero if the architecture described by GDBARCH has
73  Altivec registers (vr0 --- vr31, vrsave and vscr). */
75 
76 /* Return non-zero if the architecture described by GDBARCH has
77  VSX registers (vsr0 --- vsr63). */
78 int vsx_support_p (struct gdbarch *gdbarch);
79 int ppc_deal_with_atomic_sequence (struct frame_info *frame);
80 
81 
82 /* Register set description. */
83 
85 {
86  /* General-purpose registers. */
87  int r0_offset;
88  int gpr_size; /* size for r0-31, pc, ps, lr, ctr. */
89  int xr_size; /* size for cr, xer, mq. */
90  int pc_offset;
91  int ps_offset;
92  int cr_offset;
93  int lr_offset;
96  int mq_offset;
97 
98  /* Floating-point registers. */
99  int f0_offset;
102 
103  /* AltiVec registers. */
107 };
108 
109 extern void ppc_supply_reg (struct regcache *regcache, int regnum,
110  const gdb_byte *regs, size_t offset, int regsize);
111 
112 extern void ppc_collect_reg (const struct regcache *regcache, int regnum,
113  gdb_byte *regs, size_t offset, int regsize);
114 
115 /* Supply register REGNUM in the general-purpose register set REGSET
116  from the buffer specified by GREGS and LEN to register cache
117  REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
118 
119 extern void ppc_supply_gregset (const struct regset *regset,
120  struct regcache *regcache,
121  int regnum, const void *gregs, size_t len);
122 
123 /* Supply register REGNUM in the floating-point register set REGSET
124  from the buffer specified by FPREGS and LEN to register cache
125  REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
126 
127 extern void ppc_supply_fpregset (const struct regset *regset,
128  struct regcache *regcache,
129  int regnum, const void *fpregs, size_t len);
130 
131 /* Supply register REGNUM in the Altivec register set REGSET
132  from the buffer specified by VRREGS and LEN to register cache
133  REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
134 
135 extern void ppc_supply_vrregset (const struct regset *regset,
136  struct regcache *regcache,
137  int regnum, const void *vrregs, size_t len);
138 
139 /* Supply register REGNUM in the VSX register set REGSET
140  from the buffer specified by VSXREGS and LEN to register cache
141  REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
142 
143 extern void ppc_supply_vsxregset (const struct regset *regset,
144  struct regcache *regcache,
145  int regnum, const void *vsxregs, size_t len);
146 
147 /* Collect register REGNUM in the general-purpose register set
148  REGSET, from register cache REGCACHE into the buffer specified by
149  GREGS and LEN. If REGNUM is -1, do this for all registers in
150  REGSET. */
151 
152 extern void ppc_collect_gregset (const struct regset *regset,
153  const struct regcache *regcache,
154  int regnum, void *gregs, size_t len);
155 
156 /* Collect register REGNUM in the floating-point register set
157  REGSET, from register cache REGCACHE into the buffer specified by
158  FPREGS and LEN. If REGNUM is -1, do this for all registers in
159  REGSET. */
160 
161 extern void ppc_collect_fpregset (const struct regset *regset,
162  const struct regcache *regcache,
163  int regnum, void *fpregs, size_t len);
164 
165 /* Collect register REGNUM in the Altivec register set
166  REGSET from register cache REGCACHE into the buffer specified by
167  VRREGS and LEN. If REGNUM is -1, do this for all registers in
168  REGSET. */
169 
170 extern void ppc_collect_vrregset (const struct regset *regset,
171  const struct regcache *regcache,
172  int regnum, void *vrregs, size_t len);
173 
174 /* Collect register REGNUM in the VSX register set
175  REGSET from register cache REGCACHE into the buffer specified by
176  VSXREGS and LEN. If REGNUM is -1, do this for all registers in
177  REGSET. */
178 
179 extern void ppc_collect_vsxregset (const struct regset *regset,
180  const struct regcache *regcache,
181  int regnum, void *vsxregs, size_t len);
182 
183 /* Private data that this module attaches to struct gdbarch. */
184 
185 /* ELF ABI version used by the inferior. */
187 {
192 };
193 
194 /* Vector ABI used by the inferior. */
196 {
202 };
203 
204 struct gdbarch_tdep
205  {
206  int wordsize; /* Size in bytes of fixed-point word. */
207  int soft_float; /* Avoid FP registers for arguments? */
208 
209  enum powerpc_elf_abi elf_abi; /* ELF ABI version. */
210 
211  /* How to pass vector arguments. Never set to AUTO or LAST. */
213 
214  int ppc_gp0_regnum; /* GPR register 0 */
215  int ppc_toc_regnum; /* TOC register */
216  int ppc_ps_regnum; /* Processor (or machine) status (%msr) */
217  int ppc_cr_regnum; /* Condition register */
218  int ppc_lr_regnum; /* Link register */
219  int ppc_ctr_regnum; /* Count register */
220  int ppc_xer_regnum; /* Integer exception register */
221 
222  /* Not all PPC and RS6000 variants will have the registers
223  represented below. A -1 is used to indicate that the register
224  is not present in this variant. */
225 
226  /* Floating-point registers. */
227  int ppc_fp0_regnum; /* Floating-point register 0. */
228  int ppc_fpscr_regnum; /* fp status and condition register. */
229 
230  /* Multiplier-Quotient Register (older POWER architectures only). */
232 
233  /* POWER7 VSX registers. */
234  int ppc_vsr0_regnum; /* First VSX register. */
235  int ppc_vsr0_upper_regnum; /* First right most dword vsx register. */
236  int ppc_efpr0_regnum; /* First Extended FP register. */
237 
238  /* Altivec registers. */
239  int ppc_vr0_regnum; /* First AltiVec register. */
240  int ppc_vrsave_regnum; /* Last AltiVec register. */
241 
242  /* SPE registers. */
243  int ppc_ev0_upper_regnum; /* First GPR upper half register. */
244  int ppc_ev0_regnum; /* First ev register. */
245  int ppc_acc_regnum; /* SPE 'acc' register. */
246  int ppc_spefscr_regnum; /* SPE 'spefscr' register. */
247 
248  /* Decimal 128 registers. */
249  int ppc_dl0_regnum; /* First Decimal128 argument register pair. */
250 
251  /* Offset to ABI specific location where link register is saved. */
253 
254  /* An array of integers, such that sim_regno[I] is the simulator
255  register number for GDB register number I, or -1 if the
256  simulator does not implement that register. */
257  int *sim_regno;
258 
259  /* ISA-specific types. */
262 
264 };
265 
266 
267 /* Constants for register set sizes. */
268 enum
269  {
270  ppc_num_gprs = 32, /* 32 general-purpose registers. */
271  ppc_num_fprs = 32, /* 32 floating-point registers. */
272  ppc_num_srs = 16, /* 16 segment registers. */
273  ppc_num_vrs = 32, /* 32 Altivec vector registers. */
274  ppc_num_vshrs = 32, /* 32 doublewords (dword 1 of vs0~vs31). */
275  ppc_num_vsrs = 64, /* 64 VSX vector registers. */
276  ppc_num_efprs = 32 /* 32 Extended FP registers. */
277  };
278 
279 
280 /* Register number constants. These are GDB internal register
281  numbers; they are not used for the simulator or remote targets.
282  Extra SPRs (those other than MQ, CTR, LR, XER, SPEFSCR) are given
283  numbers above PPC_NUM_REGS. So are segment registers and other
284  target-defined registers. */
285 enum {
305 };
306 
307 /* An instruction to match. */
308 
310 {
311  unsigned int mask; /* mask the insn with this... */
312  unsigned int data; /* ...and see if it matches this. */
313  int optional; /* If non-zero, this insn may be absent. */
314 };
315 
316 extern int ppc_insns_match_pattern (struct frame_info *frame, CORE_ADDR pc,
317  struct ppc_insn_pattern *pattern,
318  unsigned int *insns);
319 extern CORE_ADDR ppc_insn_d_field (unsigned int insn);
320 
321 extern CORE_ADDR ppc_insn_ds_field (unsigned int insn);
322 
323 extern int ppc_process_record (struct gdbarch *gdbarch,
324  struct regcache *regcache, CORE_ADDR addr);
325 
326 /* Instruction size. */
327 #define PPC_INSN_SIZE 4
328 
329 /* Estimate for the maximum number of instrctions in a function epilogue. */
330 #define PPC_MAX_EPILOGUE_INSTRUCTIONS 52
331 
332 #endif /* ppc-tdep.h */
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)
powerpc_vector_abi
Definition: ppc-tdep.h:195
int ppc_vsr0_regnum
Definition: ppc-tdep.h:234
int ppc_ev0_regnum
Definition: ppc-tdep.h:244
int * sim_regno
Definition: ppc-tdep.h:257
bfd_vma CORE_ADDR
Definition: common-types.h:41
int ppc_lr_regnum
Definition: ppc-tdep.h:218
int ppc_altivec_support_p(struct gdbarch *gdbarch)
Definition: rs6000-tdep.c:233
void ppc_supply_fpregset(const struct regset *regset, struct regcache *regcache, int regnum, const void *fpregs, size_t len)
Definition: rs6000-tdep.c:550
int ppc_efpr0_regnum
Definition: ppc-tdep.h:236
int ppc_fpscr_regnum
Definition: ppc-tdep.h:228
int lr_frame_offset
Definition: ppc-tdep.h:252
int ppc_process_record(struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr)
Definition: rs6000-tdep.c:5056
return_value_convention
Definition: defs.h:206
void ppc_supply_reg(struct regcache *regcache, int regnum, const gdb_byte *regs, size_t offset, int regsize)
Definition: rs6000-tdep.c:383
int ppc_spefscr_regnum
Definition: ppc-tdep.h:246
int vsx_register_p(struct gdbarch *gdbarch, int regno)
Definition: rs6000-tdep.c:156
int ppc_cr_regnum
Definition: ppc-tdep.h:217
enum powerpc_vector_abi vector_abi
Definition: ppc-tdep.h:212
Definition: regset.h:34
int ppc_deal_with_atomic_sequence(struct frame_info *frame)
Definition: rs6000-tdep.c:1094
void ppc_collect_gregset(const struct regset *regset, const struct regcache *regcache, int regnum, void *gregs, size_t len)
Definition: rs6000-tdep.c:663
int ppc_vsr0_upper_regnum
Definition: ppc-tdep.h:235
int ppc_toc_regnum
Definition: ppc-tdep.h:215
int ppc_vrsave_regnum
Definition: ppc-tdep.h:240
void ppc_collect_reg(const struct regcache *regcache, int regnum, gdb_byte *regs, size_t offset, int regsize)
Definition: rs6000-tdep.c:404
void ppc_collect_vrregset(const struct regset *regset, const struct regcache *regcache, int regnum, void *vrregs, size_t len)
Definition: rs6000-tdep.c:783
int ppc_gp0_regnum
Definition: ppc-tdep.h:214
int ppc_acc_regnum
Definition: ppc-tdep.h:245
struct_return
Definition: arm-tdep.h:148
CORE_ADDR ppc_insn_ds_field(unsigned int insn)
Definition: rs6000-tdep.c:6151
Definition: gdbtypes.h:749
int ppc_dl0_regnum
Definition: ppc-tdep.h:249
void ppc_collect_fpregset(const struct regset *regset, const struct regcache *regcache, int regnum, void *fpregs, size_t len)
Definition: rs6000-tdep.c:710
int(* ppc_syscall_record)(struct regcache *regcache)
Definition: ppc-tdep.h:263
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, int struct_return, CORE_ADDR struct_addr)
Definition: ppc-sysv-tdep.c:60
int vsx_support_p(struct gdbarch *gdbarch)
int soft_float
Definition: ppc-tdep.h:207
void ppc_supply_vrregset(const struct regset *regset, struct regcache *regcache, int regnum, const void *vrregs, size_t len)
Definition: rs6000-tdep.c:618
int regnum
Definition: aarch64-tdep.c:69
int ppc_insns_match_pattern(struct frame_info *frame, CORE_ADDR pc, struct ppc_insn_pattern *pattern, unsigned int *insns)
Definition: rs6000-tdep.c:6112
Definition: value.c:172
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)
struct type * ppc_builtin_type_vec128
Definition: ppc-tdep.h:261
const char const char int
Definition: command.h:229
bfd_byte gdb_byte
Definition: common-types.h:38
int ppc_ctr_regnum
Definition: ppc-tdep.h:219
int ppc_vr0_regnum
Definition: ppc-tdep.h:239
void ppc_collect_vsxregset(const struct regset *regset, const struct regcache *regcache, int regnum, void *vsxregs, size_t len)
Definition: rs6000-tdep.c:749
CORE_ADDR ppc_insn_d_field(unsigned int insn)
Definition: rs6000-tdep.c:6141
int wordsize
Definition: ppc-tdep.h:206
int ppc_ev0_upper_regnum
Definition: ppc-tdep.h:243
int ppc_ps_regnum
Definition: ppc-tdep.h:216
int offset
Definition: agent.c:65
int ppc_xer_regnum
Definition: ppc-tdep.h:220
struct type * ppc_builtin_type_vec64
Definition: ppc-tdep.h:260
int ppc_mq_regnum
Definition: ppc-tdep.h:231
powerpc_elf_abi
Definition: ppc-tdep.h:186
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, int struct_return, CORE_ADDR struct_addr)
unsigned int mask
Definition: ppc-tdep.h:311
enum powerpc_elf_abi elf_abi
Definition: ppc-tdep.h:209
int altivec_register_p(struct gdbarch *gdbarch, int regno)
Definition: rs6000-tdep.c:168
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)
int spe_register_p(struct gdbarch *gdbarch, int regno)
Definition: rs6000-tdep.c:180
unsigned int data
Definition: ppc-tdep.h:312
void ppc_supply_vsxregset(const struct regset *regset, struct regcache *regcache, int regnum, const void *vsxregs, size_t len)
Definition: rs6000-tdep.c:587
int ppc_floating_point_unit_p(struct gdbarch *gdbarch)
Definition: rs6000-tdep.c:212
int ppc_fp0_regnum
Definition: ppc-tdep.h:227
void ppc_supply_gregset(const struct regset *regset, struct regcache *regcache, int regnum, const void *gregs, size_t len)
Definition: rs6000-tdep.c:505
const ULONGEST const LONGEST len
Definition: target.h:309