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TOMOYO Linux Cross Reference
Linux/arch/sparc/include/uapi/asm/signal.h

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  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_ONESHOT      _SV_RESET
141 #define SA_NODEFER      0x20u
142 #define SA_NOCLDWAIT    0x100u
143 #define SA_SIGINFO      0x200u
144 
145 #define SA_NOMASK       SA_NODEFER
146 
147 #define SIG_BLOCK          0x01 /* for blocking signals */
148 #define SIG_UNBLOCK        0x02 /* for unblocking signals */
149 #define SIG_SETMASK        0x04 /* for setting the signal mask */
150 
151 #define MINSIGSTKSZ     4096
152 #define SIGSTKSZ        16384
153 
154 
155 #include <asm-generic/signal-defs.h>
156 
157 #ifndef __KERNEL__
158 struct __new_sigaction {
159         __sighandler_t          sa_handler;
160         unsigned long           sa_flags;
161         __sigrestore_t          sa_restorer;  /* not used by Linux/SPARC yet */
162         __new_sigset_t          sa_mask;
163 };
164 
165 struct __old_sigaction {
166         __sighandler_t          sa_handler;
167         __old_sigset_t          sa_mask;
168         unsigned long           sa_flags;
169         void                    (*sa_restorer)(void);  /* not used by Linux/SPARC yet */
170 };
171 #endif
172 
173 typedef struct sigaltstack {
174         void                    __user *ss_sp;
175         int                     ss_flags;
176         size_t                  ss_size;
177 } stack_t;
178 
179 
180 #endif /* !(__ASSEMBLY__) */
181 
182 #endif /* _UAPI__SPARC_SIGNAL_H */
183 

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