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1 /* Target-dependent code for SPARC.
2 
3  Copyright (C) 2003-2015 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 SPARC_TDEP_H
21 #define SPARC_TDEP_H 1
22 
23 struct frame_info;
24 struct gdbarch;
25 struct regcache;
26 struct regset;
28 
29 /* Register offsets for the general-purpose register set. */
30 
32 {
41  int r_y_size;
42 };
43 
45 {
48 };
49 
50 /* SPARC architecture-specific information. */
51 
52 struct gdbarch_tdep
53 {
54  /* Register numbers for the PN and nPC registers. The definitions
55  for (64-bit) UltraSPARC differ from the (32-bit) SPARC
56  definitions. */
57  int pc_regnum;
59 
60  /* Register sets. */
61  const struct regset *gregset;
62  size_t sizeof_gregset;
63  const struct regset *fpregset;
64  size_t sizeof_fpregset;
65 
66  /* Offset of saved PC in jmp_buf. */
67  int jb_pc_offset;
68 
69  /* Size of an Procedure Linkage Table (PLT) entry, 0 if we shouldn't
70  treat the PLT special when doing prologue analysis. */
72 
73  /* Alternative location for trap return. Used for single-stepping. */
74  CORE_ADDR (*step_trap) (struct frame_info *frame, unsigned long insn);
75 
76  /* ISA-specific data types. */
82 };
83 
84 /* Register numbers of various important registers. */
85 
87 {
88  SPARC_G0_REGNUM, /* %g0 */
95  SPARC_G7_REGNUM, /* %g7 */
96  SPARC_O0_REGNUM, /* %o0 */
102  SPARC_SP_REGNUM, /* %sp (%o6) */
103  SPARC_O7_REGNUM, /* %o7 */
104  SPARC_L0_REGNUM, /* %l0 */
111  SPARC_L7_REGNUM, /* %l7 */
112  SPARC_I0_REGNUM, /* %i0 */
118  SPARC_FP_REGNUM, /* %fp (%i6) */
119  SPARC_I7_REGNUM, /* %i7 */
120  SPARC_F0_REGNUM, /* %f0 */
128  SPARC_F31_REGNUM /* %f31 */
129  = SPARC_F0_REGNUM + 31
130 };
131 
133 {
135  = SPARC_F31_REGNUM + 1,
136  SPARC32_PSR_REGNUM, /* %psr */
137  SPARC32_WIM_REGNUM, /* %wim */
138  SPARC32_TBR_REGNUM, /* %tbr */
139  SPARC32_PC_REGNUM, /* %pc */
140  SPARC32_NPC_REGNUM, /* %npc */
141  SPARC32_FSR_REGNUM, /* %fsr */
142  SPARC32_CSR_REGNUM, /* %csr */
143 
144  /* Pseudo registers. */
145  SPARC32_D0_REGNUM, /* %d0 */
147  = SPARC32_D0_REGNUM + 15
148 };
149 
150 
152 {
153  /* Base address. */
156 
157  /* Do we have a frame? */
159 
160  /* The offset from the base register to the CFA. */
162 
163  /* Mask of `local' and `in' registers saved in the register save area. */
164  unsigned short int saved_regs_mask;
165 
166  /* Mask of `out' registers copied or renamed to their `in' sibling. */
167  unsigned char copied_regs_mask;
168 
169  /* Do we have a Structure, Union or Quad-Precision return value? */
171 
172  /* Table of saved registers. */
174 };
175 
176 /* Fetch the instruction at PC. */
177 extern unsigned long sparc_fetch_instruction (CORE_ADDR pc);
178 
179 /* Fetch StackGhost Per-Process XOR cookie. */
181 
182 /* Record the effect of a SAVE instruction on CACHE. */
183 extern void sparc_record_save_insn (struct sparc_frame_cache *cache);
184 
185 /* Do a full analysis of the prologue at PC and update CACHE accordingly. */
187  CORE_ADDR pc, CORE_ADDR current_pc,
188  struct sparc_frame_cache *cache);
189 
190 extern struct sparc_frame_cache *
191  sparc_frame_cache (struct frame_info *this_frame, void **this_cache);
192 
193 extern struct sparc_frame_cache *
194  sparc32_frame_cache (struct frame_info *this_frame, void **this_cache);
195 
196 extern int
198 
199 
200 
201 extern int sparc_software_single_step (struct frame_info *frame);
202 
203 extern void sparc_supply_rwindow (struct regcache *regcache,
204  CORE_ADDR sp, int regnum);
205 extern void sparc_collect_rwindow (const struct regcache *regcache,
206  CORE_ADDR sp, int regnum);
207 
208 /* Register offsets for SunOS 4. */
209 extern const struct sparc_gregmap sparc32_sunos4_gregmap;
210 extern const struct sparc_fpregmap sparc32_sunos4_fpregmap;
211 extern const struct sparc_fpregmap sparc32_bsd_fpregmap;
212 
213 extern void sparc32_supply_gregset (const struct sparc_gregmap *gregmap,
214  struct regcache *regcache,
215  int regnum, const void *gregs);
216 extern void sparc32_collect_gregset (const struct sparc_gregmap *gregmap,
217  const struct regcache *regcache,
218  int regnum, void *gregs);
219 extern void sparc32_supply_fpregset (const struct sparc_fpregmap *fpregmap,
220  struct regcache *regcache,
221  int regnum, const void *fpregs);
222 extern void sparc32_collect_fpregset (const struct sparc_fpregmap *fpregmap,
223  const struct regcache *regcache,
224  int regnum, void *fpregs);
225 
227 
228 /* Functions and variables exported from sparc-sol2-tdep.c. */
229 
230 /* Register offsets for Solaris 2. */
231 extern const struct sparc_gregmap sparc32_sol2_gregmap;
232 extern const struct sparc_fpregmap sparc32_sol2_fpregmap;
233 
234 extern int sparc_sol2_pc_in_sigtramp (CORE_ADDR pc, const char *name);
235 
236 extern const char *sparc_sol2_static_transform_name (const char *name);
237 
238 extern void sparc32_sol2_init_abi (struct gdbarch_info info,
239  struct gdbarch *gdbarch);
240 
241 /* Functions and variables exported from sparcnbsd-tdep.c. */
242 
243 /* Register offsets for NetBSD. */
244 extern const struct sparc_gregmap sparc32nbsd_gregmap;
245 
246 /* Return the address of a system call's alternative return
247  address. */
248 extern CORE_ADDR sparcnbsd_step_trap (struct frame_info *frame,
249  unsigned long insn);
250 
251 extern void sparc32nbsd_elf_init_abi (struct gdbarch_info info,
252  struct gdbarch *gdbarch);
253 
254 extern struct trad_frame_saved_reg *
255  sparc32nbsd_sigcontext_saved_regs (struct frame_info *next_frame);
256 
257 #endif /* sparc-tdep.h */
int jb_pc_offset
Definition: i386-tdep.h:199
bfd_vma CORE_ADDR
Definition: common-types.h:41
int sparc_sol2_pc_in_sigtramp(CORE_ADDR pc, const char *name)
const struct regset * gregset
Definition: sparc-tdep.h:61
void sparc32_collect_gregset(const struct sparc_gregmap *gregmap, const struct regcache *regcache, int regnum, void *gregs)
Definition: sparc-tdep.c:1959
void sparc32_sol2_init_abi(struct gdbarch_info info, struct gdbarch *gdbarch)
void sparc_supply_rwindow(struct regcache *regcache, CORE_ADDR sp, int regnum)
Definition: sparc-tdep.c:1750
CORE_ADDR sparc_analyze_prologue(struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR current_pc, struct sparc_frame_cache *cache)
Definition: sparc-tdep.c:889
CORE_ADDR(* step_trap)(struct frame_info *frame, unsigned long insn)
Definition: sparc-tdep.h:74
const struct sparc_fpregmap sparc32_sunos4_fpregmap
Definition: sparc-tdep.c:2069
void sparc32_supply_gregset(const struct sparc_gregmap *gregmap, struct regcache *regcache, int regnum, const void *gregs)
Definition: sparc-tdep.c:1894
size_t sizeof_fpregset
Definition: i386-tdep.h:64
void sparc_record_save_insn(struct sparc_frame_cache *cache)
Definition: sparc-tdep.c:866
int npc_regnum
Definition: sparc-tdep.h:58
int sparc_software_single_step(struct frame_info *frame)
Definition: sparc-tdep.c:1609
const struct sparc_gregmap sparc32nbsd_gregmap
void sparc32_supply_fpregset(const struct sparc_fpregmap *fpregmap, struct regcache *regcache, int regnum, const void *fpregs)
Definition: sparc-tdep.c:2014
void sparc_collect_rwindow(const struct regcache *regcache, CORE_ADDR sp, int regnum)
Definition: sparc-tdep.c:1823
const struct sparc_fpregmap sparc32_sol2_fpregmap
struct trad_frame_saved_reg * saved_regs
Definition: sparc-tdep.h:173
struct sparc_frame_cache * sparc32_frame_cache(struct frame_info *this_frame, void **this_cache)
Definition: sparc-tdep.c:1155
Definition: regset.h:34
const char *const name
Definition: aarch64-tdep.c:68
sparc_regnum
Definition: sparc-tdep.h:86
unsigned short int saved_regs_mask
Definition: sparc-tdep.h:164
struct type * sparc64_fprs_type
Definition: sparc-tdep.h:81
CORE_ADDR base
Definition: sparc-tdep.h:154
unsigned long sparc_fetch_instruction(CORE_ADDR pc)
Definition: sparc-tdep.c:96
Definition: gdbtypes.h:749
int sparc_is_annulled_branch_insn(CORE_ADDR pc)
Definition: sparc-tdep.c:128
struct trad_frame_saved_reg * sparc32nbsd_sigcontext_saved_regs(struct frame_info *next_frame)
const struct sparc_fpregmap sparc32_bsd_fpregmap
Definition: sparc-tdep.c:2075
void sparc32nbsd_elf_init_abi(struct gdbarch_info info, struct gdbarch *gdbarch)
int regnum
Definition: aarch64-tdep.c:69
int r_tbr_offset
Definition: sparc-tdep.h:38
const char * sparc_sol2_static_transform_name(const char *name)
struct type * sparc64_fsr_type
Definition: sparc-tdep.h:80
sparc32_regnum
Definition: sparc-tdep.h:132
const struct sparc_gregmap sparc32_sunos4_gregmap
Definition: sparc-tdep.c:2057
void sparc32_collect_fpregset(const struct sparc_fpregmap *fpregmap, const struct regcache *regcache, int regnum, void *fpregs)
Definition: sparc-tdep.c:2034
struct type * sparc_fsr_type
Definition: sparc-tdep.h:78
struct type * sparc_psr_type
Definition: sparc-tdep.h:77
int r_npc_offset
Definition: sparc-tdep.h:35
unsigned char copied_regs_mask
Definition: sparc-tdep.h:167
struct type * sparc64_pstate_type
Definition: sparc-tdep.h:79
size_t sizeof_gregset
Definition: i386-tdep.h:61
int r_psr_offset
Definition: sparc-tdep.h:33
const struct regset * fpregset
Definition: i386-tdep.h:242
int sparc_stack_frame_destroyed_p(struct gdbarch *gdbarch, CORE_ADDR pc)
Definition: sparc-tdep.c:458
unsigned long long ULONGEST
Definition: common-types.h:53
const struct sparc_gregmap sparc32_sol2_gregmap
size_t plt_entry_size
Definition: sparc-tdep.h:71
ULONGEST sparc_fetch_wcookie(struct gdbarch *gdbarch)
Definition: sparc-tdep.c:187
struct sparc_frame_cache * sparc_frame_cache(struct frame_info *this_frame, void **this_cache)
Definition: sparc-tdep.c:1098
CORE_ADDR sparcnbsd_step_trap(struct frame_info *frame, unsigned long insn)
int r_wim_offset
Definition: sparc-tdep.h:37