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
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
* Copyright 2015 Joyent, Inc.
*/
#ifndef _SYS_LX_SIGNAL_H
#define _SYS_LX_SIGNAL_H
#if !defined(_ASM)
#include <sys/lx_types.h>
#include <sys/ucontext.h>
#include <sys/lx_siginfo.h>
#include <lx_signum.h>
#endif /* !defined(_ASM) */
#ifdef __cplusplus
extern "C" {
#endif
/*
* Linux sigaction flags
*/
#define LX_SA_NOCLDSTOP 0x00000001
#define LX_SA_NOCLDWAIT 0x00000002
#define LX_SA_SIGINFO 0x00000004
#define LX_SA_RESTORER 0x04000000
#define LX_SA_ONSTACK 0x08000000
#define LX_SA_RESTART 0x10000000
#define LX_SA_NODEFER 0x40000000
#define LX_SA_RESETHAND 0x80000000
#define LX_SA_NOMASK LX_SA_NODEFER
#define LX_SA_ONESHOT LX_SA_RESETHAND
#define LX_SIG_BLOCK 0
#define LX_SIG_UNBLOCK 1
#define LX_SIG_SETMASK 2
#define LX_MINSIGSTKSZ 2048
#define LX_SS_ONSTACK 1
#define LX_SS_DISABLE 2
#define LX_SIGRT_MAGIC 0xdeadf00d
#if !defined(_ASM)
typedef struct lx_sigaction {
void (*lxsa_handler)();
int lxsa_flags;
void (*lxsa_restorer)(void);
lx_sigset_t lxsa_mask;
} lx_sigaction_t;
#if defined(_ILP32)
typedef uint32_t lx_osigset_t;
#define OSIGSET_NBITS (sizeof (lx_osigset_t) * NBBY)
#define OSIGSET_BITSET(sig) (1U << (((sig) - 1) % OSIGSET_NBITS))
typedef struct lx_osigaction {
void (*lxsa_handler)();
lx_osigset_t lxsa_mask;
int lxsa_flags;
void (*lxsa_restorer)(void);
} lx_osigaction_t;
#endif
/*
* Flag settings to determine whether common routines should operate on
* lx_sigset_ts or lx_osigset_ts.
*/
#define USE_OSIGSET 0
#define USE_SIGSET 1
typedef struct lx_sighandlers {
struct lx_sigaction lx_sa[LX_NSIG + 1];
} lx_sighandlers_t;
typedef struct lx_sigaltstack {
void *ss_sp;
int ss_flags;
size_t ss_size;
} lx_stack_t;
/*
* _fpreg, _fpxreg, _xmmreg and _fpstate are defined in Linux src in:
* arch/x86/include/uapi/asm/sigcontext.h
*/
#define LX_X86_FXSR_MAGIC 0x0000
#define LX_X86_FXSR_NONE 0xffff
#if defined(_LP64)
typedef struct lx_fpstate {
ushort_t cwd;
ushort_t swd;
ushort_t twd; /* Note this is not the same as the 32bit/x87/FSAVE twd */
ushort_t fop;
uint64_t rip;
uint64_t rdp;
uint32_t mxcsr;
uint32_t mxcsr_mask;
uint32_t st_space[32]; /* 8 * 16 bytes for each FP-reg */
uint32_t xmm_space[64]; /* 16 * 16 bytes for each XMM-reg */
uint32_t reserved2[12];
uint32_t reserved3[12];
} lx_fpstate_t;
/*
* The Linux layout is defined in the Linux src tree in:
* arch/x86/include/asm/sigcontext.h
* and the user-level def (which is what we want) at:
* arch/x86/include/uapi/asm/sigcontext.h
*
* The Illumos offsets of the registers in the context are defined in:
* usr/src/uts/intel/sys/regset.h
* this is an mcontext_t from uc_mcontext.
*
* For the 64-bit case the register layout is completely different in the
* context.
*/
typedef struct lx_sigcontext {
ulong_t sc_r8;
ulong_t sc_r9;
ulong_t sc_r10;
ulong_t sc_r11;
ulong_t sc_r12;
ulong_t sc_r13;
ulong_t sc_r14;
ulong_t sc_r15;
ulong_t sc_rdi;
ulong_t sc_rsi;
ulong_t sc_rbp;
ulong_t sc_rbx;
ulong_t sc_rdx;
ulong_t sc_rax;
ulong_t sc_rcx;
ulong_t sc_rsp;
ulong_t sc_rip;
ulong_t sc_eflags;
ushort_t sc_cs;
ushort_t sc_gs;
ushort_t sc_fs;
ushort_t sc_pad0;
ulong_t sc_err;
ulong_t sc_trapno;
ulong_t sc_mask;
ulong_t sc_cr2;
lx_fpstate_t *sc_fpstate;
ulong_t reserved[8];
} lx_sigcontext_t;
#else /* is _ILP32 */
struct lx_fpreg {
ushort_t significand[4];
ushort_t exponent;
};
struct lx_fpxreg {
ushort_t significand[4];
ushort_t exponent;
ushort_t padding[3];
};
struct lx_xmmreg {
uint32_t element[4];
};
typedef struct lx_fpstate {
/* Regular FPU environment */
ulong_t cw;
ulong_t sw;
ulong_t tag;
ulong_t ipoff;
ulong_t cssel;
ulong_t dataoff;
ulong_t datasel;
struct lx_fpreg _st[8];
ushort_t status;
ushort_t magic; /* 0xffff = regular FPU data */
/* FXSR FPU environment */
ulong_t _fxsr_env[6]; /* env is ignored */
ulong_t mxcsr;
ulong_t reserved;
struct lx_fpxreg _fxsr_st[8]; /* reg data is ignored */
struct lx_xmmreg _xmm[8];
ulong_t padding[56];
} lx_fpstate_t;
/*
* The Linux layout is defined in the Linux src tree in:
* arch/x86/include/asm/sigcontext.h
* and the user-level def (which is what we want) at:
* arch/x86/include/uapi/asm/sigcontext.h
*
* The Illumos offsets of the registers in the context are defined by the
* i386 ABI (see usr/src/uts/intel/sys/regset.h).
*
* Both Illumos and Linux match up here.
*/
typedef struct lx_sigcontext {
ulong_t sc_gs;
ulong_t sc_fs;
ulong_t sc_es;
ulong_t sc_ds;
ulong_t sc_edi;
ulong_t sc_esi;
ulong_t sc_ebp;
ulong_t sc_esp;
ulong_t sc_ebx;
ulong_t sc_edx;
ulong_t sc_ecx;
ulong_t sc_eax;
ulong_t sc_trapno;
ulong_t sc_err;
ulong_t sc_eip;
ulong_t sc_cs;
ulong_t sc_eflags;
ulong_t sc_esp_at_signal;
ulong_t sc_ss;
lx_fpstate_t *sc_fpstate;
ulong_t sc_mask;
ulong_t sc_cr2;
} lx_sigcontext_t;
#endif
typedef struct lx_ucontext {
ulong_t uc_flags; /* Linux always sets this to 0 */
struct lx_ucontext *uc_link; /* Linux always sets this to NULL */
lx_stack_t uc_stack;
lx_sigcontext_t uc_sigcontext;
lx_sigset_t uc_sigmask;
} lx_ucontext_t;
typedef struct lx_sigbackup lx_sigbackup_t;
struct lx_sigbackup {
ucontext_t *lxsb_retucp;
ucontext_t *lxsb_sigucp;
uintptr_t lxsb_sigdeliver_frame;
lx_sigbackup_t *lxsb_previous;
};
extern const int ltos_signo[];
extern const int stol_signo[];
extern void setsigacthandler(void (*)(int, siginfo_t *, void *),
void (**)(int, siginfo_t *, void *),
int (*)(const ucontext_t *));
extern int lx_siginit(void);
extern void lx_sighandlers_save(lx_sighandlers_t *);
extern void lx_sighandlers_restore(lx_sighandlers_t *);
extern int stol_siginfo(siginfo_t *siginfop, lx_siginfo_t *lx_siginfop);
extern int stol_status(int);
#endif /* !defined(_ASM) */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_LX_SIGNAL_H */
|
