1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
|
/* Target-dependent code for SPARC.
Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
#ifndef SPARC_TDEP_H
#define SPARC_TDEP_H 1
struct frame_info;
struct gdbarch;
struct regcache;
struct regset;
struct trad_frame_saved_reg;
/* Register offsets for the general-purpose register set. */
struct sparc_gregset
{
int r_psr_offset;
int r_pc_offset;
int r_npc_offset;
int r_y_offset;
int r_wim_offset;
int r_tbr_offset;
int r_g1_offset;
int r_l0_offset;
int r_y_size;
};
/* SPARC architecture-specific information. */
struct gdbarch_tdep
{
/* Register numbers for the PN and nPC registers. The definitions
for (64-bit) UltraSPARC differ from the (32-bit) SPARC
definitions. */
int pc_regnum;
int npc_regnum;
/* Register sets. */
struct regset *gregset;
size_t sizeof_gregset;
struct regset *fpregset;
size_t sizeof_fpregset;
/* Offset of saved PC in jmp_buf. */
int jb_pc_offset;
/* Size of an Procedure Linkage Table (PLT) entry, 0 if we shouldn't
treat the PLT special when doing prologue analysis. */
size_t plt_entry_size;
/* Alternative location for trap return. Used for single-stepping. */
CORE_ADDR (*step_trap) (unsigned long insn);
};
/* Register numbers of various important registers. */
enum sparc_regnum
{
SPARC_G0_REGNUM, /* %g0 */
SPARC_G1_REGNUM,
SPARC_G2_REGNUM,
SPARC_G3_REGNUM,
SPARC_G4_REGNUM,
SPARC_G5_REGNUM,
SPARC_G6_REGNUM,
SPARC_G7_REGNUM, /* %g7 */
SPARC_O0_REGNUM, /* %o0 */
SPARC_O1_REGNUM,
SPARC_O2_REGNUM,
SPARC_O3_REGNUM,
SPARC_O4_REGNUM,
SPARC_O5_REGNUM,
SPARC_SP_REGNUM, /* %sp (%o6) */
SPARC_O7_REGNUM, /* %o7 */
SPARC_L0_REGNUM, /* %l0 */
SPARC_L1_REGNUM,
SPARC_L2_REGNUM,
SPARC_L3_REGNUM,
SPARC_L4_REGNUM,
SPARC_L5_REGNUM,
SPARC_L6_REGNUM,
SPARC_L7_REGNUM, /* %l7 */
SPARC_I0_REGNUM, /* %i0 */
SPARC_I1_REGNUM,
SPARC_I2_REGNUM,
SPARC_I3_REGNUM,
SPARC_I4_REGNUM,
SPARC_I5_REGNUM,
SPARC_FP_REGNUM, /* %fp (%i6) */
SPARC_I7_REGNUM, /* %i7 */
SPARC_F0_REGNUM, /* %f0 */
SPARC_F1_REGNUM,
SPARC_F31_REGNUM /* %f31 */
= SPARC_F0_REGNUM + 31
};
enum sparc32_regnum
{
SPARC32_Y_REGNUM /* %y */
= SPARC_F31_REGNUM + 1,
SPARC32_PSR_REGNUM, /* %psr */
SPARC32_WIM_REGNUM, /* %wim */
SPARC32_TBR_REGNUM, /* %tbr */
SPARC32_PC_REGNUM, /* %pc */
SPARC32_NPC_REGNUM, /* %npc */
SPARC32_FSR_REGNUM, /* %fsr */
SPARC32_CSR_REGNUM, /* %csr */
/* Pseudo registers. */
SPARC32_D0_REGNUM, /* %d0 */
SPARC32_D30_REGNUM /* %d30 */
= SPARC32_D0_REGNUM + 15
};
struct sparc_frame_cache
{
/* Base address. */
CORE_ADDR base;
CORE_ADDR pc;
/* Do we have a frame? */
int frameless_p;
/* Do we have a Structure, Union or Quad-Precision return value?. */
int struct_return_p;
/* Table of saved registers. */
struct trad_frame_saved_reg *saved_regs;
};
/* Fetch the instruction at PC. */
extern unsigned long sparc_fetch_instruction (CORE_ADDR pc);
/* Return the contents if register REGNUM as an address. */
extern CORE_ADDR sparc_address_from_register (int regnum);
/* Fetch StackGhost Per-Process XOR cookie. */
extern ULONGEST sparc_fetch_wcookie (void);
extern CORE_ADDR sparc_analyze_prologue (CORE_ADDR pc, CORE_ADDR current_pc,
struct sparc_frame_cache *cache);
extern struct sparc_frame_cache *
sparc_frame_cache (struct frame_info *next_frame, void **this_cache);
extern struct sparc_frame_cache *
sparc32_frame_cache (struct frame_info *next_frame, void **this_cache);
extern void sparc_software_single_step (enum target_signal sig,
int insert_breakpoints_p);
extern void sparc_supply_rwindow (struct regcache *regcache,
CORE_ADDR sp, int regnum);
extern void sparc_collect_rwindow (const struct regcache *regcache,
CORE_ADDR sp, int regnum);
/* Register offsets for SunOS 4. */
extern const struct sparc_gregset sparc32_sunos4_gregset;
extern void sparc32_supply_gregset (const struct sparc_gregset *gregset,
struct regcache *regcache,
int regnum, const void *gregs);
extern void sparc32_collect_gregset (const struct sparc_gregset *gregset,
const struct regcache *regcache,
int regnum, void *gregs);
extern void sparc32_supply_fpregset (struct regcache *regcache,
int regnum, const void *fpregs);
extern void sparc32_collect_fpregset (const struct regcache *regcache,
int regnum, void *fpregs);
/* Functions and variables exported from sparc-sol2-tdep.c. */
/* Register offsets for Solaris 2. */
extern const struct sparc_gregset sparc32_sol2_gregset;
extern int sparc_sol2_pc_in_sigtramp (CORE_ADDR pc, char *name);
extern void sparc32_sol2_init_abi (struct gdbarch_info info,
struct gdbarch *gdbarch);
/* Functions and variables exported from sparcnbsd-tdep.c. */
/* Register offsets for NetBSD. */
extern const struct sparc_gregset sparc32nbsd_gregset;
/* Return the address of a system call's alternative return
address. */
extern CORE_ADDR sparcnbsd_step_trap (unsigned long insn);
extern void sparc32nbsd_elf_init_abi (struct gdbarch_info info,
struct gdbarch *gdbarch);
extern struct trad_frame_saved_reg *
sparc32nbsd_sigcontext_saved_regs (struct frame_info *next_frame);
#endif /* sparc-tdep.h */
|
