xref: /openbmc/linux/arch/sparc/include/uapi/asm/signal.h (revision be92e1de)
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 
110 typedef unsigned long __old_sigset_t;            /* at least 32 bits */
111 
112 typedef struct {
113        unsigned long sig[_NSIG_WORDS];
114 } __new_sigset_t;
115 
116 /* A SunOS sigstack */
117 struct 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__
157 struct __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 
164 struct __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 
172 typedef 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