1 /* Target-dependent code for GDB, the GNU debugger.
3 Copyright (C) 2000-2019 Free Software Foundation, Inc.
5 This file is part of GDB.
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.
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.
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/>. */
29 /* From ppc-sysv-tdep.c ... */
30 enum return_value_convention ppc_sysv_abi_return_value (struct gdbarch *gdbarch,
31 struct value *function,
33 struct regcache *regcache,
35 const gdb_byte *writebuf);
36 enum return_value_convention ppc_sysv_abi_broken_return_value (struct gdbarch *gdbarch,
37 struct value *function,
39 struct regcache *regcache,
41 const gdb_byte *writebuf);
43 CORE_ADDR ppc_sysv_abi_push_dummy_call
44 (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache,
45 CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp,
46 function_call_return_method return_method, CORE_ADDR struct_addr);
48 CORE_ADDR ppc64_sysv_abi_push_dummy_call
49 (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache,
50 CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp,
51 function_call_return_method return_method, CORE_ADDR struct_addr);
53 enum return_value_convention ppc64_sysv_abi_return_value (struct gdbarch *gdbarch,
54 struct value *function,
56 struct regcache *regcache,
58 const gdb_byte *writebuf);
60 /* From rs6000-tdep.c... */
61 int altivec_register_p (struct gdbarch *gdbarch, int regno);
62 int vsx_register_p (struct gdbarch *gdbarch, int regno);
63 int spe_register_p (struct gdbarch *gdbarch, int regno);
65 /* Return non-zero if the architecture described by GDBARCH has
66 floating-point registers (f0 --- f31 and fpscr). */
67 int ppc_floating_point_unit_p (struct gdbarch *gdbarch);
69 /* Return non-zero if the architecture described by GDBARCH has
70 Altivec registers (vr0 --- vr31, vrsave and vscr). */
71 int ppc_altivec_support_p (struct gdbarch *gdbarch);
73 /* Return non-zero if the architecture described by GDBARCH has
74 VSX registers (vsr0 --- vsr63). */
75 int vsx_support_p (struct gdbarch *gdbarch);
76 std::vector<CORE_ADDR> ppc_deal_with_atomic_sequence
77 (struct regcache *regcache);
80 /* Register set description. */
82 struct ppc_reg_offsets
84 /* General-purpose registers. */
86 int gpr_size; /* size for r0-31, pc, ps, lr, ctr. */
87 int xr_size; /* size for cr, xer, mq. */
96 /* Floating-point registers. */
102 extern void ppc_supply_reg (struct regcache *regcache, int regnum,
103 const gdb_byte *regs, size_t offset, int regsize);
105 extern void ppc_collect_reg (const struct regcache *regcache, int regnum,
106 gdb_byte *regs, size_t offset, int regsize);
108 /* Supply register REGNUM in the general-purpose register set REGSET
109 from the buffer specified by GREGS and LEN to register cache
110 REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
112 extern void ppc_supply_gregset (const struct regset *regset,
113 struct regcache *regcache,
114 int regnum, const void *gregs, size_t len);
116 /* Supply register REGNUM in the floating-point register set REGSET
117 from the buffer specified by FPREGS and LEN to register cache
118 REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
120 extern void ppc_supply_fpregset (const struct regset *regset,
121 struct regcache *regcache,
122 int regnum, const void *fpregs, size_t len);
124 /* Supply register REGNUM in the Altivec register set REGSET
125 from the buffer specified by VRREGS and LEN to register cache
126 REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
128 extern void ppc_supply_vrregset (const struct regset *regset,
129 struct regcache *regcache,
130 int regnum, const void *vrregs, size_t len);
132 /* Supply register REGNUM in the VSX register set REGSET
133 from the buffer specified by VSXREGS and LEN to register cache
134 REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
136 extern void ppc_supply_vsxregset (const struct regset *regset,
137 struct regcache *regcache,
138 int regnum, const void *vsxregs, size_t len);
140 /* Collect register REGNUM in the general-purpose register set
141 REGSET, from register cache REGCACHE into the buffer specified by
142 GREGS and LEN. If REGNUM is -1, do this for all registers in
145 extern void ppc_collect_gregset (const struct regset *regset,
146 const struct regcache *regcache,
147 int regnum, void *gregs, size_t len);
149 /* Collect register REGNUM in the floating-point register set
150 REGSET, from register cache REGCACHE into the buffer specified by
151 FPREGS and LEN. If REGNUM is -1, do this for all registers in
154 extern void ppc_collect_fpregset (const struct regset *regset,
155 const struct regcache *regcache,
156 int regnum, void *fpregs, size_t len);
158 /* Collect register REGNUM in the Altivec register set
159 REGSET from register cache REGCACHE into the buffer specified by
160 VRREGS and LEN. If REGNUM is -1, do this for all registers in
163 extern void ppc_collect_vrregset (const struct regset *regset,
164 const struct regcache *regcache,
165 int regnum, void *vrregs, size_t len);
167 /* Collect register REGNUM in the VSX register set
168 REGSET from register cache REGCACHE into the buffer specified by
169 VSXREGS and LEN. If REGNUM is -1, do this for all registers in
172 extern void ppc_collect_vsxregset (const struct regset *regset,
173 const struct regcache *regcache,
174 int regnum, void *vsxregs, size_t len);
176 /* Private data that this module attaches to struct gdbarch. */
178 /* ELF ABI version used by the inferior. */
187 /* Vector ABI used by the inferior. */
188 enum powerpc_vector_abi
197 /* long double ABI version used by the inferior. */
198 enum powerpc_long_double_abi
200 POWERPC_LONG_DOUBLE_AUTO,
201 POWERPC_LONG_DOUBLE_IBM128,
202 POWERPC_LONG_DOUBLE_IEEE128,
203 POWERPC_LONG_DOUBLE_LAST
208 int wordsize; /* Size in bytes of fixed-point word. */
209 int soft_float; /* Avoid FP registers for arguments? */
211 enum powerpc_elf_abi elf_abi; /* ELF ABI version. */
213 /* Format to use for the "long double" data type. */
214 enum powerpc_long_double_abi long_double_abi;
216 /* How to pass vector arguments. Never set to AUTO or LAST. */
217 enum powerpc_vector_abi vector_abi;
219 int ppc_gp0_regnum; /* GPR register 0 */
220 int ppc_toc_regnum; /* TOC register */
221 int ppc_ps_regnum; /* Processor (or machine) status (%msr) */
222 int ppc_cr_regnum; /* Condition register */
223 int ppc_lr_regnum; /* Link register */
224 int ppc_ctr_regnum; /* Count register */
225 int ppc_xer_regnum; /* Integer exception register */
227 /* Not all PPC and RS6000 variants will have the registers
228 represented below. A -1 is used to indicate that the register
229 is not present in this variant. */
231 /* Floating-point registers. */
232 int ppc_fp0_regnum; /* Floating-point register 0. */
233 int ppc_fpscr_regnum; /* fp status and condition register. */
235 /* Multiplier-Quotient Register (older POWER architectures only). */
238 /* POWER7 VSX registers. */
239 int ppc_vsr0_regnum; /* First VSX register. */
240 int ppc_vsr0_upper_regnum; /* First right most dword vsx register. */
241 int ppc_efpr0_regnum; /* First Extended FP register. */
243 /* Altivec registers. */
244 int ppc_vr0_regnum; /* First AltiVec register. */
245 int ppc_vrsave_regnum; /* Last AltiVec register. */
247 /* Altivec pseudo-register vX aliases for the raw vrX
249 int ppc_v0_alias_regnum;
252 int ppc_ev0_upper_regnum; /* First GPR upper half register. */
253 int ppc_ev0_regnum; /* First ev register. */
254 int ppc_acc_regnum; /* SPE 'acc' register. */
255 int ppc_spefscr_regnum; /* SPE 'spefscr' register. */
257 /* Program Priority Register. */
260 /* Data Stream Control Register. */
263 /* Target Address Register. */
266 /* Decimal 128 registers. */
267 int ppc_dl0_regnum; /* First Decimal128 argument register pair. */
272 int ppc_mmcr0_regnum;
273 int ppc_mmcr2_regnum;
278 /* Hardware Transactional Memory registers. */
282 int have_htm_altivec;
285 int ppc_cdscr_regnum;
288 /* HTM pseudo registers. */
290 int ppc_cvsr0_regnum;
291 int ppc_cefpr0_regnum;
293 /* Offset to ABI specific location where link register is saved. */
296 /* An array of integers, such that sim_regno[I] is the simulator
297 register number for GDB register number I, or -1 if the
298 simulator does not implement that register. */
301 /* ISA-specific types. */
302 struct type *ppc_builtin_type_vec64;
303 struct type *ppc_builtin_type_vec128;
305 int (*ppc_syscall_record) (struct regcache *regcache);
309 /* Constants for register set sizes. */
312 ppc_num_gprs = 32, /* 32 general-purpose registers. */
313 ppc_num_fprs = 32, /* 32 floating-point registers. */
314 ppc_num_srs = 16, /* 16 segment registers. */
315 ppc_num_vrs = 32, /* 32 Altivec vector registers. */
316 ppc_num_vshrs = 32, /* 32 doublewords (dword 1 of vs0~vs31). */
317 ppc_num_vsrs = 64, /* 64 VSX vector registers. */
318 ppc_num_efprs = 32 /* 32 Extended FP registers. */
322 /* Register number constants. These are GDB internal register
323 numbers; they are not used for the simulator or remote targets.
324 Extra SPRs (those other than MQ, CTR, LR, XER, SPEFSCR) are given
325 numbers above PPC_NUM_REGS. So are segment registers and other
326 target-defined registers. */
336 PPC_FPSCR_REGNUM = 70,
338 PPC_SPE_UPPER_GP0_REGNUM = 72,
339 PPC_SPE_ACC_REGNUM = 104,
340 PPC_SPE_FSCR_REGNUM = 105,
341 PPC_VR0_REGNUM = 106,
342 PPC_VSCR_REGNUM = 138,
343 PPC_VRSAVE_REGNUM = 139,
344 PPC_VSR0_UPPER_REGNUM = 140,
345 PPC_VSR31_UPPER_REGNUM = 171,
346 PPC_PPR_REGNUM = 172,
347 PPC_DSCR_REGNUM = 173,
348 PPC_TAR_REGNUM = 174,
351 PPC_BESCR_REGNUM = 175,
352 PPC_EBBHR_REGNUM = 176,
353 PPC_EBBRR_REGNUM = 177,
356 PPC_MMCR0_REGNUM = 178,
357 PPC_MMCR2_REGNUM = 179,
358 PPC_SIAR_REGNUM = 180,
359 PPC_SDAR_REGNUM = 181,
360 PPC_SIER_REGNUM = 182,
362 /* Hardware transactional memory registers. */
363 PPC_TFHAR_REGNUM = 183,
364 PPC_TEXASR_REGNUM = 184,
365 PPC_TFIAR_REGNUM = 185,
367 PPC_CR0_REGNUM = 186,
368 PPC_CCR_REGNUM = 218,
369 PPC_CXER_REGNUM = 219,
370 PPC_CLR_REGNUM = 220,
371 PPC_CCTR_REGNUM = 221,
373 PPC_CF0_REGNUM = 222,
374 PPC_CFPSCR_REGNUM = 254,
376 PPC_CVR0_REGNUM = 255,
377 PPC_CVSCR_REGNUM = 287,
378 PPC_CVRSAVE_REGNUM = 288,
380 PPC_CVSR0_UPPER_REGNUM = 289,
382 PPC_CPPR_REGNUM = 321,
383 PPC_CDSCR_REGNUM = 322,
384 PPC_CTAR_REGNUM = 323,
388 /* Big enough to hold the size of the largest register in bytes. */
389 #define PPC_MAX_REGISTER_SIZE 64
391 #define PPC_IS_EBB_REGNUM(i) \
392 ((i) >= PPC_BESCR_REGNUM && (i) <= PPC_EBBRR_REGNUM)
394 #define PPC_IS_PMU_REGNUM(i) \
395 ((i) >= PPC_MMCR0_REGNUM && (i) <= PPC_SIER_REGNUM)
397 #define PPC_IS_TMSPR_REGNUM(i) \
398 ((i) >= PPC_TFHAR_REGNUM && (i) <= PPC_TFIAR_REGNUM)
400 #define PPC_IS_CKPTGP_REGNUM(i) \
401 ((i) >= PPC_CR0_REGNUM && (i) <= PPC_CCTR_REGNUM)
403 #define PPC_IS_CKPTFP_REGNUM(i) \
404 ((i) >= PPC_CF0_REGNUM && (i) <= PPC_CFPSCR_REGNUM)
406 #define PPC_IS_CKPTVMX_REGNUM(i) \
407 ((i) >= PPC_CVR0_REGNUM && (i) <= PPC_CVRSAVE_REGNUM)
409 #define PPC_IS_CKPTVSX_REGNUM(i) \
410 ((i) >= PPC_CVSR0_UPPER_REGNUM && (i) < (PPC_CVSR0_UPPER_REGNUM + 32))
412 /* An instruction to match. */
414 struct ppc_insn_pattern
416 unsigned int mask; /* mask the insn with this... */
417 unsigned int data; /* ...and see if it matches this. */
418 int optional; /* If non-zero, this insn may be absent. */
421 extern int ppc_insns_match_pattern (struct frame_info *frame, CORE_ADDR pc,
422 const struct ppc_insn_pattern *pattern,
423 unsigned int *insns);
424 extern CORE_ADDR ppc_insn_d_field (unsigned int insn);
426 extern CORE_ADDR ppc_insn_ds_field (unsigned int insn);
428 extern int ppc_process_record (struct gdbarch *gdbarch,
429 struct regcache *regcache, CORE_ADDR addr);
431 /* Instruction size. */
432 #define PPC_INSN_SIZE 4
434 /* Estimate for the maximum number of instrctions in a function epilogue. */
435 #define PPC_MAX_EPILOGUE_INSTRUCTIONS 52
437 #endif /* ppc-tdep.h */