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 */