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9aa1e687 | 1 | /* Target-dependent code for GDB, the GNU debugger. |
f9be684a | 2 | |
9b254dd1 | 3 | Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008 |
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 | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
9aa1e687 KB |
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 | |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
9aa1e687 | 20 | |
3a1c5313 AC |
21 | #ifndef PPC_TDEP_H |
22 | #define PPC_TDEP_H | |
23 | ||
da3331ec | 24 | struct gdbarch; |
3a1c5313 AC |
25 | struct frame_info; |
26 | struct value; | |
4a4b3fed | 27 | struct regcache; |
221c12ff | 28 | struct type; |
3a1c5313 | 29 | |
7284e1be | 30 | /* From ppc-sysv-tdep.c ... */ |
05580c65 | 31 | enum return_value_convention ppc_sysv_abi_return_value (struct gdbarch *gdbarch, |
c055b101 | 32 | struct type *func_type, |
05580c65 AC |
33 | struct type *valtype, |
34 | struct regcache *regcache, | |
50fd1280 AC |
35 | gdb_byte *readbuf, |
36 | const gdb_byte *writebuf); | |
05580c65 | 37 | enum return_value_convention ppc_sysv_abi_broken_return_value (struct gdbarch *gdbarch, |
c055b101 | 38 | struct type *func_type, |
05580c65 AC |
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); | |
05580c65 | 57 | enum return_value_convention ppc64_sysv_abi_return_value (struct gdbarch *gdbarch, |
c055b101 | 58 | struct type *func_type, |
05580c65 AC |
59 | struct type *valtype, |
60 | struct regcache *regcache, | |
50fd1280 AC |
61 | gdb_byte *readbuf, |
62 | const gdb_byte *writebuf); | |
9aa1e687 KB |
63 | |
64 | /* From rs6000-tdep.c... */ | |
be8626e0 MD |
65 | int altivec_register_p (struct gdbarch *gdbarch, int regno); |
66 | int spe_register_p (struct gdbarch *gdbarch, int regno); | |
9aa1e687 | 67 | |
383f0f5b JB |
68 | /* Return non-zero if the architecture described by GDBARCH has |
69 | floating-point registers (f0 --- f31 and fpscr). */ | |
0a613259 AC |
70 | int ppc_floating_point_unit_p (struct gdbarch *gdbarch); |
71 | ||
06caf7d2 CES |
72 | /* Return non-zero if the architecture described by GDBARCH has |
73 | Altivec registers (vr0 --- vr31, vrsave and vscr). */ | |
74 | int ppc_altivec_support_p (struct gdbarch *gdbarch); | |
75 | ||
4a7622d1 UW |
76 | int ppc_deal_with_atomic_sequence (struct frame_info *frame); |
77 | ||
78 | ||
d195bc9f MK |
79 | /* Register set description. */ |
80 | ||
81 | struct ppc_reg_offsets | |
82 | { | |
83 | /* General-purpose registers. */ | |
84 | int r0_offset; | |
f2db237a AM |
85 | int gpr_size; /* size for r0-31, pc, ps, lr, ctr. */ |
86 | int xr_size; /* size for cr, xer, mq. */ | |
d195bc9f MK |
87 | int pc_offset; |
88 | int ps_offset; | |
89 | int cr_offset; | |
90 | int lr_offset; | |
91 | int ctr_offset; | |
92 | int xer_offset; | |
93 | int mq_offset; | |
94 | ||
95 | /* Floating-point registers. */ | |
96 | int f0_offset; | |
97 | int fpscr_offset; | |
f2db237a | 98 | int fpscr_size; |
d195bc9f MK |
99 | |
100 | /* AltiVec registers. */ | |
101 | int vr0_offset; | |
102 | int vscr_offset; | |
103 | int vrsave_offset; | |
104 | }; | |
105 | ||
7284e1be UW |
106 | extern void ppc_supply_reg (struct regcache *regcache, int regnum, |
107 | const gdb_byte *regs, size_t offset, int regsize); | |
108 | ||
109 | extern void ppc_collect_reg (const struct regcache *regcache, int regnum, | |
110 | gdb_byte *regs, size_t offset, int regsize); | |
111 | ||
d195bc9f MK |
112 | /* Supply register REGNUM in the general-purpose register set REGSET |
113 | from the buffer specified by GREGS and LEN to register cache | |
114 | REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */ | |
115 | ||
116 | extern void ppc_supply_gregset (const struct regset *regset, | |
117 | struct regcache *regcache, | |
118 | int regnum, const void *gregs, size_t len); | |
119 | ||
120 | /* Supply register REGNUM in the floating-point register set REGSET | |
121 | from the buffer specified by FPREGS and LEN to register cache | |
122 | REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */ | |
123 | ||
124 | extern void ppc_supply_fpregset (const struct regset *regset, | |
125 | struct regcache *regcache, | |
126 | int regnum, const void *fpregs, size_t len); | |
127 | ||
06caf7d2 CES |
128 | /* Supply register REGNUM in the Altivec register set REGSET |
129 | from the buffer specified by VRREGS and LEN to register cache | |
130 | REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */ | |
131 | ||
132 | extern void ppc_supply_vrregset (const struct regset *regset, | |
133 | struct regcache *regcache, | |
134 | int regnum, const void *vrregs, size_t len); | |
135 | ||
d195bc9f MK |
136 | /* Collect register REGNUM in the general-purpose register set |
137 | REGSET. from register cache REGCACHE into the buffer specified by | |
138 | GREGS and LEN. If REGNUM is -1, do this for all registers in | |
139 | REGSET. */ | |
140 | ||
141 | extern void ppc_collect_gregset (const struct regset *regset, | |
142 | const struct regcache *regcache, | |
143 | int regnum, void *gregs, size_t len); | |
144 | ||
145 | /* Collect register REGNUM in the floating-point register set | |
146 | REGSET. from register cache REGCACHE into the buffer specified by | |
147 | FPREGS and LEN. If REGNUM is -1, do this for all registers in | |
148 | REGSET. */ | |
149 | ||
150 | extern void ppc_collect_fpregset (const struct regset *regset, | |
151 | const struct regcache *regcache, | |
152 | int regnum, void *fpregs, size_t len); | |
153 | ||
06caf7d2 CES |
154 | /* Collect register REGNUM in the Altivec register set |
155 | REGSET from register cache REGCACHE into the buffer specified by | |
156 | VRREGS and LEN. If REGNUM is -1, do this for all registers in | |
157 | REGSET. */ | |
158 | ||
159 | extern void ppc_collect_vrregset (const struct regset *regset, | |
160 | const struct regcache *regcache, | |
161 | int regnum, void *vrregs, size_t len); | |
162 | ||
2188cbdd EZ |
163 | /* Private data that this module attaches to struct gdbarch. */ |
164 | ||
55eddb0f DJ |
165 | /* Vector ABI used by the inferior. */ |
166 | enum powerpc_vector_abi | |
167 | { | |
168 | POWERPC_VEC_AUTO, | |
169 | POWERPC_VEC_GENERIC, | |
170 | POWERPC_VEC_ALTIVEC, | |
171 | POWERPC_VEC_SPE, | |
172 | POWERPC_VEC_LAST | |
173 | }; | |
174 | ||
2188cbdd EZ |
175 | struct gdbarch_tdep |
176 | { | |
55eddb0f DJ |
177 | int wordsize; /* Size in bytes of fixed-point word. */ |
178 | int soft_float; /* Avoid FP registers for arguments? */ | |
179 | ||
180 | /* How to pass vector arguments. Never set to AUTO or LAST. */ | |
181 | enum powerpc_vector_abi vector_abi; | |
182 | ||
2188cbdd | 183 | int ppc_gp0_regnum; /* GPR register 0 */ |
2188cbdd EZ |
184 | int ppc_toc_regnum; /* TOC register */ |
185 | int ppc_ps_regnum; /* Processor (or machine) status (%msr) */ | |
186 | int ppc_cr_regnum; /* Condition register */ | |
187 | int ppc_lr_regnum; /* Link register */ | |
188 | int ppc_ctr_regnum; /* Count register */ | |
189 | int ppc_xer_regnum; /* Integer exception register */ | |
383f0f5b | 190 | |
826d5376 PG |
191 | /* Not all PPC and RS6000 variants will have the registers |
192 | represented below. A -1 is used to indicate that the register | |
193 | is not present in this variant. */ | |
194 | ||
195 | /* Floating-point registers. */ | |
366f009f | 196 | int ppc_fp0_regnum; /* floating-point register 0 */ |
826d5376 PG |
197 | int ppc_fpscr_regnum; /* fp status and condition register */ |
198 | ||
826d5376 PG |
199 | /* Multiplier-Quotient Register (older POWER architectures only). */ |
200 | int ppc_mq_regnum; | |
f86a7158 | 201 | |
826d5376 | 202 | /* Altivec registers. */ |
1fcc0bb8 EZ |
203 | int ppc_vr0_regnum; /* First AltiVec register */ |
204 | int ppc_vrsave_regnum; /* Last AltiVec register */ | |
826d5376 PG |
205 | |
206 | /* SPE registers. */ | |
6ced10dd | 207 | int ppc_ev0_upper_regnum; /* First GPR upper half register */ |
c8001721 | 208 | int ppc_ev0_regnum; /* First ev register */ |
867e2dc5 JB |
209 | int ppc_acc_regnum; /* SPE 'acc' register */ |
210 | int ppc_spefscr_regnum; /* SPE 'spefscr' register */ | |
826d5376 | 211 | |
f949c649 TJB |
212 | /* Decimal 128 registers. */ |
213 | int ppc_dl0_regnum; /* First Decimal128 argument register pair. */ | |
214 | ||
826d5376 PG |
215 | /* Offset to ABI specific location where link register is saved. */ |
216 | int lr_frame_offset; | |
9f643768 JB |
217 | |
218 | /* An array of integers, such that sim_regno[I] is the simulator | |
219 | register number for GDB register number I, or -1 if the | |
220 | simulator does not implement that register. */ | |
221 | int *sim_regno; | |
6f7f3f0d | 222 | |
794ac428 UW |
223 | /* ISA-specific types. */ |
224 | struct type *ppc_builtin_type_vec64; | |
2188cbdd | 225 | }; |
3a1c5313 | 226 | |
b967e06f JB |
227 | |
228 | /* Constants for register set sizes. */ | |
229 | enum | |
230 | { | |
8bf659e8 | 231 | ppc_num_gprs = 32, /* 32 general-purpose registers */ |
cc98b5cc | 232 | ppc_num_fprs = 32, /* 32 floating-point registers */ |
8f088af7 | 233 | ppc_num_srs = 16, /* 16 segment registers */ |
cc98b5cc | 234 | ppc_num_vrs = 32 /* 32 Altivec vector registers */ |
b967e06f JB |
235 | }; |
236 | ||
0ea0ec5f | 237 | |
7cc46491 DJ |
238 | /* Register number constants. These are GDB internal register |
239 | numbers; they are not used for the simulator or remote targets. | |
240 | Extra SPRs (those other than MQ, CTR, LR, XER, SPEFSCR) are given | |
241 | numbers above PPC_NUM_REGS. So are segment registers and other | |
242 | target-defined registers. */ | |
243 | enum { | |
244 | PPC_R0_REGNUM = 0, | |
245 | PPC_F0_REGNUM = 32, | |
246 | PPC_PC_REGNUM = 64, | |
247 | PPC_MSR_REGNUM = 65, | |
248 | PPC_CR_REGNUM = 66, | |
249 | PPC_LR_REGNUM = 67, | |
250 | PPC_CTR_REGNUM = 68, | |
251 | PPC_XER_REGNUM = 69, | |
252 | PPC_FPSCR_REGNUM = 70, | |
253 | PPC_MQ_REGNUM = 71, | |
254 | PPC_SPE_UPPER_GP0_REGNUM = 72, | |
255 | PPC_SPE_ACC_REGNUM = 104, | |
256 | PPC_SPE_FSCR_REGNUM = 105, | |
257 | PPC_VR0_REGNUM = 106, | |
258 | PPC_VSCR_REGNUM = 138, | |
259 | PPC_VRSAVE_REGNUM = 139, | |
260 | PPC_NUM_REGS | |
261 | }; | |
0ea0ec5f | 262 | |
0ea0ec5f | 263 | |
a0c75879 MK |
264 | /* Instruction size. */ |
265 | #define PPC_INSN_SIZE 4 | |
266 | ||
0d1243d9 PG |
267 | /* Estimate for the maximum number of instrctions in a function epilogue. */ |
268 | #define PPC_MAX_EPILOGUE_INSTRUCTIONS 52 | |
269 | ||
a0c75879 | 270 | #endif /* ppc-tdep.h */ |