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
|
/* nto-tdep.h - QNX Neutrino target header.
Copyright (C) 2003-2023 Free Software Foundation, Inc.
Contributed by QNX Software Systems Ltd.
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 3 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, see <http://www.gnu.org/licenses/>. */
#ifndef NTO_TDEP_H
#define NTO_TDEP_H
#include "solist.h"
#include "osabi.h"
#include "regset.h"
#include "gdbthread.h"
#include "gdbsupport/gdb-checked-static-cast.h"
/* Target operations defined for Neutrino targets (<target>-nto-tdep.c). */
struct nto_target_ops
{
/* The CPUINFO flags from the remote. Currently used by
i386 for fxsave but future proofing other hosts.
This is initialized in procfs_attach or nto_start_remote
depending on our host/target. It would only be invalid
if we were talking to an older pdebug which didn't support
the cpuinfo message. */
unsigned cpuinfo_flags;
/* True if successfully retrieved cpuinfo from remote. */
int cpuinfo_valid;
/* Given a register, return an id that represents the Neutrino
regset it came from. If reg == -1 update all regsets. */
int (*regset_id) (int);
void (*supply_gregset) (struct regcache *, char *);
void (*supply_fpregset) (struct regcache *, char *);
void (*supply_altregset) (struct regcache *, char *);
/* Given a regset, tell gdb about registers stored in data. */
void (*supply_regset) (struct regcache *, int, char *);
/* Given a register and regset, calculate the offset into the regset
and stuff it into the last argument. If regno is -1, calculate the
size of the entire regset. Returns length of data, -1 if unknown
regset, 0 if unknown register. */
int (*register_area) (struct gdbarch *, int, int, unsigned *);
/* Build the Neutrino register set info into the data buffer.
Return -1 if unknown regset, 0 otherwise. */
int (*regset_fill) (const struct regcache *, int, char *);
/* Gives the fetch_link_map_offsets function exposure outside of
solib-svr4.c so that we can override relocate_section_addresses(). */
struct link_map_offsets *(*fetch_link_map_offsets) (void);
/* Used by nto_elf_osabi_sniffer to determine if we're connected to an
Neutrino target. */
enum gdb_osabi (*is_nto_target) (bfd *abfd);
};
extern struct nto_target_ops current_nto_target;
#define nto_cpuinfo_flags (current_nto_target.cpuinfo_flags)
#define nto_cpuinfo_valid (current_nto_target.cpuinfo_valid)
#define nto_regset_id (current_nto_target.regset_id)
#define nto_supply_gregset (current_nto_target.supply_gregset)
#define nto_supply_fpregset (current_nto_target.supply_fpregset)
#define nto_supply_altregset (current_nto_target.supply_altregset)
#define nto_supply_regset (current_nto_target.supply_regset)
#define nto_register_area (current_nto_target.register_area)
#define nto_regset_fill (current_nto_target.regset_fill)
#define nto_fetch_link_map_offsets \
(current_nto_target.fetch_link_map_offsets)
#define nto_is_nto_target (current_nto_target.is_nto_target)
/* Keep this consistant with neutrino syspage.h. */
enum
{
CPUTYPE_X86,
CPUTYPE_PPC,
CPUTYPE_MIPS,
CPUTYPE_SPARE,
CPUTYPE_ARM,
CPUTYPE_SH,
CPUTYPE_UNKNOWN
};
enum
{
OSTYPE_QNX4,
OSTYPE_NTO
};
/* These correspond to the DSMSG_* versions in dsmsgs.h. */
enum
{
NTO_REG_GENERAL,
NTO_REG_FLOAT,
NTO_REG_SYSTEM,
NTO_REG_ALT,
NTO_REG_END
};
typedef char qnx_reg64[8];
typedef struct _debug_regs
{
qnx_reg64 padding[1024];
} nto_regset_t;
struct nto_thread_info : public private_thread_info
{
short tid = 0;
unsigned char state = 0;
unsigned char flags = 0;
std::string name;
};
static inline nto_thread_info *
get_nto_thread_info (thread_info *thread)
{
return gdb::checked_static_cast<nto_thread_info *> (thread->priv.get ());
}
/* Per-inferior data, common for both procfs and remote. */
struct nto_inferior_data
{
/* Last stopped flags result from wait function */
unsigned int stopped_flags = 0;
/* Last known stopped PC */
CORE_ADDR stopped_pc = 0;
};
/* Generic functions in nto-tdep.c. */
void nto_init_solib_absolute_prefix (void);
char **nto_parse_redirection (char *start_argv[], const char **in,
const char **out, const char **err);
void nto_relocate_section_addresses (so_list &, target_section *);
int nto_map_arch_to_cputype (const char *);
int nto_find_and_open_solib (const char *, unsigned,
gdb::unique_xmalloc_ptr<char> *);
enum gdb_osabi nto_elf_osabi_sniffer (bfd *abfd);
void nto_initialize_signals (void);
/* Dummy function for initializing nto_target_ops on targets which do
not define a particular regset. */
void nto_dummy_supply_regset (struct regcache *regcache, char *regs);
int nto_in_dynsym_resolve_code (CORE_ADDR pc);
const char *nto_extra_thread_info (struct target_ops *self, struct thread_info *);
LONGEST nto_read_auxv_from_initial_stack (CORE_ADDR initial_stack,
gdb_byte *readbuf,
LONGEST len, size_t sizeof_auxv_t);
struct nto_inferior_data *nto_inferior_data (struct inferior *inf);
#endif /* NTO_TDEP_H */
|