GDB (xrefs)
Loading...
Searching...
No Matches
sparc64-sol2-tdep.c
Go to the documentation of this file.
1/* Target-dependent code for Solaris UltraSPARC.
2
3 Copyright (C) 2003-2023 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#include "defs.h"
21#include "frame.h"
22#include "frame-unwind.h"
23#include "gdbarch.h"
24#include "symtab.h"
25#include "objfiles.h"
26#include "osabi.h"
27#include "trad-frame.h"
28#include "regset.h"
29
30#include "sol2-tdep.h"
31#include "sparc64-tdep.h"
32#include "solib-svr4.h"
33
34/* From <sys/regset.h>. */
36{
37 32 * 8, /* "tstate" */
38 33 * 8, /* %pc */
39 34 * 8, /* %npc */
40 35 * 8, /* %y */
41 -1, /* %wim */
42 -1, /* %tbr */
43 1 * 8, /* %g1 */
44 16 * 8, /* %l0 */
45 8 /* sizeof (%y) */
46};
47
49{
50 0 * 8, /* %f0 */
51 33 * 8, /* %fsr */
52};
53
54static void
56 struct regcache *regcache,
57 int regnum, const void *gregs, size_t len)
58{
60}
61
62static void
64 const struct regcache *regcache,
65 int regnum, void *gregs, size_t len)
66{
68}
69
70static void
72 struct regcache *regcache,
73 int regnum, const void *fpregs, size_t len)
74{
76}
77
78static void
80 const struct regcache *regcache,
81 int regnum, void *fpregs, size_t len)
82{
84}
85
92
99
100
101static struct sparc_frame_cache *
103 void **this_cache)
104{
105 struct sparc_frame_cache *cache;
106 CORE_ADDR mcontext_addr, addr;
107 int regnum;
108
109 if (*this_cache)
110 return (struct sparc_frame_cache *) *this_cache;
111
112 cache = sparc_frame_cache (this_frame, this_cache);
113 gdb_assert (cache == *this_cache);
114
115 cache->saved_regs = trad_frame_alloc_saved_regs (this_frame);
116
117 /* The third argument is a pointer to an instance of `ucontext_t',
118 which has a member `uc_mcontext' that contains the saved
119 registers. */
120 regnum =
122 mcontext_addr = get_frame_register_unsigned (this_frame, regnum) + 64;
123
124 cache->saved_regs[SPARC64_CCR_REGNUM].set_addr (mcontext_addr + 0 * 8);
125 cache->saved_regs[SPARC64_PC_REGNUM].set_addr (mcontext_addr + 1 * 8);
126 cache->saved_regs[SPARC64_NPC_REGNUM].set_addr (mcontext_addr + 2 * 8);
127 cache->saved_regs[SPARC64_Y_REGNUM].set_addr (mcontext_addr + 3 * 8);
128 cache->saved_regs[SPARC64_ASI_REGNUM].set_addr (mcontext_addr + 19 * 8);
129 cache->saved_regs[SPARC64_FPRS_REGNUM].set_addr (mcontext_addr + 20 * 8);
130
131 /* Since %g0 is always zero, keep the identity encoding. */
132 for (regnum = SPARC_G1_REGNUM, addr = mcontext_addr + 4 * 8;
133 regnum <= SPARC_O7_REGNUM; regnum++, addr += 8)
134 cache->saved_regs[regnum].set_addr (addr);
135
136 if (get_frame_memory_unsigned (this_frame, mcontext_addr + 21 * 8, 8))
137 {
138 /* The register windows haven't been flushed. */
140 cache->saved_regs[regnum].set_unknown ();
141 }
142 else
143 {
144 CORE_ADDR sp;
145
146 addr = cache->saved_regs[SPARC_SP_REGNUM].addr ();
147 sp = get_frame_memory_unsigned (this_frame, addr, 8);
148 for (regnum = SPARC_L0_REGNUM, addr = sp + BIAS;
149 regnum <= SPARC_I7_REGNUM; regnum++, addr += 8)
150 cache->saved_regs[regnum].set_addr (addr);
151 }
152
153 return cache;
154}
155
156static void
158 void **this_cache,
159 struct frame_id *this_id)
160{
161 struct sparc_frame_cache *cache =
162 sparc64_sol2_sigtramp_frame_cache (this_frame, this_cache);
163
164 (*this_id) = frame_id_build (cache->base, cache->pc);
165}
166
167static struct value *
169 void **this_cache,
170 int regnum)
171{
172 struct sparc_frame_cache *cache =
173 sparc64_sol2_sigtramp_frame_cache (this_frame, this_cache);
174
175 return trad_frame_get_prev_register (this_frame, cache->saved_regs, regnum);
176}
177
178static int
180 frame_info_ptr this_frame,
181 void **this_cache)
182{
183 return sol2_sigtramp_p (this_frame);
184}
185
196
197
198
199static void
201{
202 sparc_gdbarch_tdep *tdep = gdbarch_tdep<sparc_gdbarch_tdep> (gdbarch);
203
205 tdep->sizeof_gregset = 304;
206
208 tdep->sizeof_fpregset = 544;
209
211
213
214 sol2_init_abi (info, gdbarch);
215
216 /* Solaris has SVR4-style shared libraries... */
220
221 /* ...which means that we need some special handling when doing
222 prologue analysis. */
223 tdep->plt_entry_size = 16;
224
225 /* Solaris has kernel-assisted single-stepping support. */
227}
228
230void
232{
233 gdbarch_register_osabi (bfd_arch_sparc, bfd_mach_sparc_v9,
235}
int regnum
enum unwind_stop_reason default_frame_unwind_stop_reason(frame_info_ptr this_frame, void **this_cache)
void frame_unwind_append_unwinder(struct gdbarch *gdbarch, const struct frame_unwind *unwinder)
ULONGEST get_frame_register_unsigned(frame_info_ptr frame, int regnum)
Definition frame.c:1399
struct frame_id frame_id_build(CORE_ADDR stack_addr, CORE_ADDR code_addr)
Definition frame.c:736
ULONGEST get_frame_memory_unsigned(frame_info_ptr this_frame, CORE_ADDR addr, int len)
Definition frame.c:3007
@ SIGTRAMP_FRAME
Definition frame.h:198
void set_gdbarch_software_single_step(struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step)
void set_gdbarch_skip_trampoline_code(struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code)
CORE_ADDR find_solib_trampoline_target(frame_info_ptr frame, CORE_ADDR pc)
Definition minsyms.c:1554
void gdbarch_register_osabi(enum bfd_architecture arch, unsigned long machine, enum gdb_osabi osabi, void(*init_osabi)(struct gdbarch_info, struct gdbarch *))
Definition osabi.c:146
@ GDB_OSABI_SOLARIS
Definition osabi.h:31
void sol2_init_abi(struct gdbarch_info info, struct gdbarch *gdbarch)
Definition sol2-tdep.c:105
int sol2_sigtramp_p(frame_info_ptr this_frame)
Definition sol2-tdep.c:55
void set_solib_svr4_fetch_link_map_offsets(struct gdbarch *gdbarch, struct link_map_offsets *(*flmo)(void))
struct link_map_offsets * svr4_lp64_fetch_link_map_offsets(void)
struct sparc_frame_cache * sparc_frame_cache(frame_info_ptr this_frame, void **this_cache)
#define BIAS
Definition sparc-tdep.c:68
@ SPARC_O2_REGNUM
Definition sparc-tdep.h:114
@ SPARC_G1_REGNUM
Definition sparc-tdep.h:105
@ SPARC_L0_REGNUM
Definition sparc-tdep.h:120
@ SPARC_I7_REGNUM
Definition sparc-tdep.h:135
@ SPARC_I2_REGNUM
Definition sparc-tdep.h:130
@ SPARC_O7_REGNUM
Definition sparc-tdep.h:119
@ SPARC_SP_REGNUM
Definition sparc-tdep.h:118
static const struct regset sparc64_sol2_gregset
const struct sparc_fpregmap sparc64_sol2_fpregmap
const struct sparc_gregmap sparc64_sol2_gregmap
static const struct frame_unwind sparc64_sol2_sigtramp_frame_unwind
static void sparc64_sol2_sigtramp_frame_this_id(frame_info_ptr this_frame, void **this_cache, struct frame_id *this_id)
static void sparc64_sol2_collect_core_fpregset(const struct regset *regset, const struct regcache *regcache, int regnum, void *fpregs, size_t len)
static void sparc64_sol2_supply_core_fpregset(const struct regset *regset, struct regcache *regcache, int regnum, const void *fpregs, size_t len)
void _initialize_sparc64_sol2_tdep()
static struct value * sparc64_sol2_sigtramp_frame_prev_register(frame_info_ptr this_frame, void **this_cache, int regnum)
static void sparc64_sol2_collect_core_gregset(const struct regset *regset, const struct regcache *regcache, int regnum, void *gregs, size_t len)
static void sparc64_sol2_supply_core_gregset(const struct regset *regset, struct regcache *regcache, int regnum, const void *gregs, size_t len)
static const struct regset sparc64_sol2_fpregset
static struct sparc_frame_cache * sparc64_sol2_sigtramp_frame_cache(frame_info_ptr this_frame, void **this_cache)
static void sparc64_sol2_init_abi(struct gdbarch_info info, struct gdbarch *gdbarch)
static int sparc64_sol2_sigtramp_frame_sniffer(const struct frame_unwind *self, frame_info_ptr this_frame, void **this_cache)
void sparc64_supply_gregset(const struct sparc_gregmap *gregmap, struct regcache *regcache, int regnum, const void *gregs)
void sparc64_supply_fpregset(const struct sparc_fpregmap *fpregmap, struct regcache *regcache, int regnum, const void *fpregs)
void sparc64_collect_fpregset(const struct sparc_fpregmap *fpregmap, const struct regcache *regcache, int regnum, void *fpregs)
void sparc64_init_abi(struct gdbarch_info info, struct gdbarch *gdbarch)
void sparc64_collect_gregset(const struct sparc_gregmap *gregmap, const struct regcache *regcache, int regnum, void *gregs)
@ SPARC64_ASI_REGNUM
@ SPARC64_CCR_REGNUM
@ SPARC64_Y_REGNUM
@ SPARC64_PC_REGNUM
@ SPARC64_FPRS_REGNUM
@ SPARC64_NPC_REGNUM
struct trad_frame_saved_reg * saved_regs
Definition sparc-tdep.h:192
unsigned char copied_regs_mask
Definition sparc-tdep.h:186
const struct regset * fpregset
Definition sparc-tdep.h:77
const struct regset * gregset
Definition sparc-tdep.h:75
void set_addr(LONGEST addr)
Definition trad-frame.h:102
Definition value.h:130
trad_frame_saved_reg * trad_frame_alloc_saved_regs(struct gdbarch *gdbarch)
Definition trad-frame.c:62
struct value * trad_frame_get_prev_register(frame_info_ptr this_frame, trad_frame_saved_reg this_saved_regs[], int regnum)
Definition trad-frame.c:187