1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef __SPARC_SIGNAL_H
3#define __SPARC_SIGNAL_H
4
5#include <asm/sigcontext.h>
6
7
8
9/* On the Sparc the signal handlers get passed a 'sub-signal' code
10 * for certain signal types, which we document here.
11 */
12#define SIGHUP 1
13#define SIGINT 2
14#define SIGQUIT 3
15#define SIGILL 4
16#define SUBSIG_STACK 0
17#define SUBSIG_ILLINST 2
18#define SUBSIG_PRIVINST 3
19#define SUBSIG_BADTRAP(t) (0x80 + (t))
20
21#define SIGTRAP 5
22#define SIGABRT 6
23#define SIGIOT 6
24
25#define SIGEMT 7
26#define SUBSIG_TAG 10
27
28#define SIGFPE 8
29#define SUBSIG_FPDISABLED 0x400
30#define SUBSIG_FPERROR 0x404
31#define SUBSIG_FPINTOVFL 0x001
32#define SUBSIG_FPSTSIG 0x002
33#define SUBSIG_IDIVZERO 0x014
34#define SUBSIG_FPINEXACT 0x0c4
35#define SUBSIG_FPDIVZERO 0x0c8
36#define SUBSIG_FPUNFLOW 0x0cc
37#define SUBSIG_FPOPERROR 0x0d0
38#define SUBSIG_FPOVFLOW 0x0d4
39
40#define SIGKILL 9
41#define SIGBUS 10
42#define SUBSIG_BUSTIMEOUT 1
43#define SUBSIG_ALIGNMENT 2
44#define SUBSIG_MISCERROR 5
45
46#define SIGSEGV 11
47#define SUBSIG_NOMAPPING 3
48#define SUBSIG_PROTECTION 4
49#define SUBSIG_SEGERROR 5
50
51#define SIGSYS 12
52
53#define SIGPIPE 13
54#define SIGALRM 14
55#define SIGTERM 15
56#define SIGURG 16
57
58/* SunOS values which deviate from the Linux/i386 ones */
59#define SIGSTOP 17
60#define SIGTSTP 18
61#define SIGCONT 19
62#define SIGCHLD 20
63#define SIGTTIN 21
64#define SIGTTOU 22
65#define SIGIO 23
66#define SIGPOLL SIGIO /* SysV name for SIGIO */
67#define SIGXCPU 24
68#define SIGXFSZ 25
69#define SIGVTALRM 26
70#define SIGPROF 27
71#define SIGWINCH 28
72#define SIGLOST 29
73#define SIGPWR SIGLOST
74#define SIGUSR1 30
75#define SIGUSR2 31
76
77/* Most things should be clean enough to redefine this at will, if care
78 is taken to make libc match. */
79
80#define __OLD_NSIG 32
81#define __NEW_NSIG 64
82#ifdef __arch64__
83#define _NSIG_BPW 64
84#else
85#define _NSIG_BPW 32
86#endif
87#define _NSIG_WORDS (__NEW_NSIG / _NSIG_BPW)
88
89#define SIGRTMIN 32
90#define SIGRTMAX __NEW_NSIG
91
92#if defined(__KERNEL__) || defined(__WANT_POSIX1B_SIGNALS__)
93#define _NSIG __NEW_NSIG
94#define __new_sigset_t sigset_t
95#define __new_sigaction sigaction
96#define __new_sigaction32 sigaction32
97#define __old_sigset_t old_sigset_t
98#define __old_sigaction old_sigaction
99#define __old_sigaction32 old_sigaction32
100#else
101#define _NSIG __OLD_NSIG
102#define NSIG _NSIG
103#define __old_sigset_t sigset_t
104#define __old_sigaction sigaction
105#define __old_sigaction32 sigaction32
106#endif
107
108#ifndef __ASSEMBLER__
109
110typedef unsigned long __old_sigset_t; /* at least 32 bits */
111
112typedef struct {
113 unsigned long sig[_NSIG_WORDS];
114} __new_sigset_t;
115
116/* A SunOS sigstack */
117struct sigstack {
118 /* XXX 32-bit pointers pinhead XXX */
119 char *the_stack;
120 int cur_status;
121};
122
123/* Sigvec flags */
124#define _SV_SSTACK 1u /* This signal handler should use sig-stack */
125#define _SV_INTR 2u /* Sig return should not restart system call */
126#define _SV_RESET 4u /* Set handler to SIG_DFL upon taken signal */
127#define _SV_IGNCHILD 8u /* Do not send SIGCHLD */
128
129/*
130 * sa_flags values: SA_STACK is not currently supported, but will allow the
131 * usage of signal stacks by using the (now obsolete) sa_restorer field in
132 * the sigaction structure as a stack pointer. This is now possible due to
133 * the changes in signal handling. LBT 010493.
134 * SA_RESTART flag to get restarting signals (which were the default long ago)
135 */
136#define SA_NOCLDSTOP _SV_IGNCHILD
137#define SA_STACK _SV_SSTACK
138#define SA_ONSTACK _SV_SSTACK
139#define SA_RESTART _SV_INTR
140#define SA_RESETHAND _SV_RESET
141#define SA_NODEFER 0x20u
142#define SA_NOCLDWAIT 0x100u
143#define SA_SIGINFO 0x200u
144
145#define SIG_BLOCK 0x01 /* for blocking signals */
146#define SIG_UNBLOCK 0x02 /* for unblocking signals */
147#define SIG_SETMASK 0x04 /* for setting the signal mask */
148
149#define MINSIGSTKSZ 4096
150#define SIGSTKSZ 16384
151
152
153#include <asm-generic/signal-defs.h>
154#include <asm/posix_types.h>
155
156struct __new_sigaction {
157 __sighandler_t sa_handler;
158 unsigned long sa_flags;
159 __sigrestore_t sa_restorer; /* not used by Linux/SPARC yet */
160 __new_sigset_t sa_mask;
161};
162
163struct __old_sigaction {
164 __sighandler_t sa_handler;
165 __old_sigset_t sa_mask;
166 unsigned long sa_flags;
167 void (*sa_restorer)(void); /* not used by Linux/SPARC yet */
168};
169
170typedef struct sigaltstack {
171 void *ss_sp;
172 int ss_flags;
173 __kernel_size_t ss_size;
174} stack_t;
175
176
177#endif /* !(__ASSEMBLER__) */
178
179#endif /* __SPARC_SIGNAL_H */