1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef _UAPI__SPARC_SIGNAL_H
3#define _UAPI__SPARC_SIGNAL_H
4
5#include <asm/sigcontext.h>
6#include <linux/compiler.h>
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 __ASSEMBLY__
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
156#ifndef __KERNEL__
157struct __new_sigaction {
158	__sighandler_t		sa_handler;
159	unsigned long		sa_flags;
160	__sigrestore_t		sa_restorer;  /* not used by Linux/SPARC yet */
161	__new_sigset_t		sa_mask;
162};
163
164struct __old_sigaction {
165	__sighandler_t		sa_handler;
166	__old_sigset_t		sa_mask;
167	unsigned long		sa_flags;
168	void			(*sa_restorer)(void);  /* not used by Linux/SPARC yet */
169};
170#endif
171
172typedef struct sigaltstack {
173	void			__user *ss_sp;
174	int			ss_flags;
175	__kernel_size_t		ss_size;
176} stack_t;
177
178
179#endif /* !(__ASSEMBLY__) */
180
181#endif /* _UAPI__SPARC_SIGNAL_H */
182