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obsd-tdep.c
Go to the documentation of this file.
1/* Target-dependent code for OpenBSD.
2
3 Copyright (C) 2005-2023 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 "auxv.h"
22#include "frame.h"
23#include "symtab.h"
24#include "objfiles.h"
25
26#include "obsd-tdep.h"
27
28CORE_ADDR
30{
31 struct bound_minimal_symbol msym;
32
33 msym = lookup_minimal_symbol("_dl_bind", NULL, NULL);
34 if (msym.minsym && msym.value_address () == pc)
36 else
38}
39
40/* OpenBSD signal numbers. From <sys/signal.h>. */
41
42enum
43 {
76 };
77
78/* Implement the "gdb_signal_from_target" gdbarch method. */
79
80static enum gdb_signal
82{
83 switch (signal)
84 {
85 case 0:
86 return GDB_SIGNAL_0;
87
88 case OBSD_SIGHUP:
89 return GDB_SIGNAL_HUP;
90
91 case OBSD_SIGINT:
92 return GDB_SIGNAL_INT;
93
94 case OBSD_SIGQUIT:
95 return GDB_SIGNAL_QUIT;
96
97 case OBSD_SIGILL:
98 return GDB_SIGNAL_ILL;
99
100 case OBSD_SIGTRAP:
101 return GDB_SIGNAL_TRAP;
102
103 case OBSD_SIGABRT:
104 return GDB_SIGNAL_ABRT;
105
106 case OBSD_SIGEMT:
107 return GDB_SIGNAL_EMT;
108
109 case OBSD_SIGFPE:
110 return GDB_SIGNAL_FPE;
111
112 case OBSD_SIGKILL:
113 return GDB_SIGNAL_KILL;
114
115 case OBSD_SIGBUS:
116 return GDB_SIGNAL_BUS;
117
118 case OBSD_SIGSEGV:
119 return GDB_SIGNAL_SEGV;
120
121 case OBSD_SIGSYS:
122 return GDB_SIGNAL_SYS;
123
124 case OBSD_SIGPIPE:
125 return GDB_SIGNAL_PIPE;
126
127 case OBSD_SIGALRM:
128 return GDB_SIGNAL_ALRM;
129
130 case OBSD_SIGTERM:
131 return GDB_SIGNAL_TERM;
132
133 case OBSD_SIGURG:
134 return GDB_SIGNAL_URG;
135
136 case OBSD_SIGSTOP:
137 return GDB_SIGNAL_STOP;
138
139 case OBSD_SIGTSTP:
140 return GDB_SIGNAL_TSTP;
141
142 case OBSD_SIGCONT:
143 return GDB_SIGNAL_CONT;
144
145 case OBSD_SIGCHLD:
146 return GDB_SIGNAL_CHLD;
147
148 case OBSD_SIGTTIN:
149 return GDB_SIGNAL_TTIN;
150
151 case OBSD_SIGTTOU:
152 return GDB_SIGNAL_TTOU;
153
154 case OBSD_SIGIO:
155 return GDB_SIGNAL_IO;
156
157 case OBSD_SIGXCPU:
158 return GDB_SIGNAL_XCPU;
159
160 case OBSD_SIGXFSZ:
161 return GDB_SIGNAL_XFSZ;
162
163 case OBSD_SIGVTALRM:
164 return GDB_SIGNAL_VTALRM;
165
166 case OBSD_SIGPROF:
167 return GDB_SIGNAL_PROF;
168
169 case OBSD_SIGWINCH:
170 return GDB_SIGNAL_WINCH;
171
172 case OBSD_SIGINFO:
173 return GDB_SIGNAL_INFO;
174
175 case OBSD_SIGUSR1:
176 return GDB_SIGNAL_USR1;
177
178 case OBSD_SIGUSR2:
179 return GDB_SIGNAL_USR2;
180 }
181
182 return GDB_SIGNAL_UNKNOWN;
183}
184
185/* Implement the "gdb_signal_to_target" gdbarch method. */
186
187static int
189 enum gdb_signal signal)
190{
191 switch (signal)
192 {
193 case GDB_SIGNAL_0:
194 return 0;
195
196 case GDB_SIGNAL_HUP:
197 return OBSD_SIGHUP;
198
199 case GDB_SIGNAL_INT:
200 return OBSD_SIGINT;
201
202 case GDB_SIGNAL_QUIT:
203 return OBSD_SIGQUIT;
204
205 case GDB_SIGNAL_ILL:
206 return OBSD_SIGILL;
207
208 case GDB_SIGNAL_TRAP:
209 return OBSD_SIGTRAP;
210
211 case GDB_SIGNAL_ABRT:
212 return OBSD_SIGABRT;
213
214 case GDB_SIGNAL_EMT:
215 return OBSD_SIGEMT;
216
217 case GDB_SIGNAL_FPE:
218 return OBSD_SIGFPE;
219
220 case GDB_SIGNAL_KILL:
221 return OBSD_SIGKILL;
222
223 case GDB_SIGNAL_BUS:
224 return OBSD_SIGBUS;
225
226 case GDB_SIGNAL_SEGV:
227 return OBSD_SIGSEGV;
228
229 case GDB_SIGNAL_SYS:
230 return OBSD_SIGSYS;
231
232 case GDB_SIGNAL_PIPE:
233 return OBSD_SIGPIPE;
234
235 case GDB_SIGNAL_ALRM:
236 return OBSD_SIGALRM;
237
238 case GDB_SIGNAL_TERM:
239 return OBSD_SIGTERM;
240
241 case GDB_SIGNAL_URG:
242 return OBSD_SIGURG;
243
244 case GDB_SIGNAL_STOP:
245 return OBSD_SIGSTOP;
246
247 case GDB_SIGNAL_TSTP:
248 return OBSD_SIGTSTP;
249
250 case GDB_SIGNAL_CONT:
251 return OBSD_SIGCONT;
252
253 case GDB_SIGNAL_CHLD:
254 return OBSD_SIGCHLD;
255
256 case GDB_SIGNAL_TTIN:
257 return OBSD_SIGTTIN;
258
259 case GDB_SIGNAL_TTOU:
260 return OBSD_SIGTTOU;
261
262 case GDB_SIGNAL_IO:
263 return OBSD_SIGIO;
264
265 case GDB_SIGNAL_XCPU:
266 return OBSD_SIGXCPU;
267
268 case GDB_SIGNAL_XFSZ:
269 return OBSD_SIGXFSZ;
270
271 case GDB_SIGNAL_VTALRM:
272 return OBSD_SIGVTALRM;
273
274 case GDB_SIGNAL_PROF:
275 return OBSD_SIGPROF;
276
277 case GDB_SIGNAL_WINCH:
278 return OBSD_SIGWINCH;
279
280 case GDB_SIGNAL_USR1:
281 return OBSD_SIGUSR1;
282
283 case GDB_SIGNAL_USR2:
284 return OBSD_SIGUSR2;
285
286 case GDB_SIGNAL_INFO:
287 return OBSD_SIGINFO;
288 }
289
290 return -1;
291}
292
293void
int svr4_auxv_parse(struct gdbarch *gdbarch, const gdb_byte **readptr, const gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp)
Definition auxv.c:298
CORE_ADDR frame_unwind_caller_pc(frame_info_ptr this_frame)
Definition frame.c:1042
frame_info_ptr get_current_frame(void)
Definition frame.c:1670
void set_gdbarch_gdb_signal_from_target(struct gdbarch *gdbarch, gdbarch_gdb_signal_from_target_ftype *gdb_signal_from_target)
void set_gdbarch_auxv_parse(struct gdbarch *gdbarch, gdbarch_auxv_parse_ftype *auxv_parse)
void set_gdbarch_gdb_signal_to_target(struct gdbarch *gdbarch, gdbarch_gdb_signal_to_target_ftype *gdb_signal_to_target)
struct bound_minimal_symbol lookup_minimal_symbol(const char *name, const char *sfile, struct objfile *objf)
Definition minsyms.c:363
CORE_ADDR find_solib_trampoline_target(frame_info_ptr frame, CORE_ADDR pc)
Definition minsyms.c:1554
void obsd_init_abi(struct gdbarch_info info, struct gdbarch *gdbarch)
Definition obsd-tdep.c:294
@ OBSD_SIGUSR1
Definition obsd-tdep.c:73
@ OBSD_SIGXCPU
Definition obsd-tdep.c:67
@ OBSD_SIGXFSZ
Definition obsd-tdep.c:68
@ OBSD_SIGQUIT
Definition obsd-tdep.c:46
@ OBSD_SIGUSR2
Definition obsd-tdep.c:74
@ OBSD_SIGINFO
Definition obsd-tdep.c:72
@ OBSD_SIGIO
Definition obsd-tdep.c:66
@ OBSD_SIGTHR
Definition obsd-tdep.c:75
@ OBSD_SIGHUP
Definition obsd-tdep.c:44
@ OBSD_SIGABRT
Definition obsd-tdep.c:49
@ OBSD_SIGURG
Definition obsd-tdep.c:59
@ OBSD_SIGALRM
Definition obsd-tdep.c:57
@ OBSD_SIGVTALRM
Definition obsd-tdep.c:69
@ OBSD_SIGBUS
Definition obsd-tdep.c:53
@ OBSD_SIGPIPE
Definition obsd-tdep.c:56
@ OBSD_SIGKILL
Definition obsd-tdep.c:52
@ OBSD_SIGFPE
Definition obsd-tdep.c:51
@ OBSD_SIGTTIN
Definition obsd-tdep.c:64
@ OBSD_SIGSYS
Definition obsd-tdep.c:55
@ OBSD_SIGEMT
Definition obsd-tdep.c:50
@ OBSD_SIGSTOP
Definition obsd-tdep.c:60
@ OBSD_SIGTRAP
Definition obsd-tdep.c:48
@ OBSD_SIGCONT
Definition obsd-tdep.c:62
@ OBSD_SIGCHLD
Definition obsd-tdep.c:63
@ OBSD_SIGWINCH
Definition obsd-tdep.c:71
@ OBSD_SIGTERM
Definition obsd-tdep.c:58
@ OBSD_SIGTTOU
Definition obsd-tdep.c:65
@ OBSD_SIGINT
Definition obsd-tdep.c:45
@ OBSD_SIGPROF
Definition obsd-tdep.c:70
@ OBSD_SIGILL
Definition obsd-tdep.c:47
@ OBSD_SIGSEGV
Definition obsd-tdep.c:54
@ OBSD_SIGTSTP
Definition obsd-tdep.c:61
CORE_ADDR obsd_skip_solib_resolver(struct gdbarch *gdbarch, CORE_ADDR pc)
Definition obsd-tdep.c:29
static int obsd_gdb_signal_to_target(struct gdbarch *gdbarch, enum gdb_signal signal)
Definition obsd-tdep.c:188
static enum gdb_signal obsd_gdb_signal_from_target(struct gdbarch *gdbarch, int signal)
Definition obsd-tdep.c:81
CORE_ADDR value_address() const
Definition minsyms.h:41
struct minimal_symbol * minsym
Definition minsyms.h:49