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

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  1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2 #ifndef _UAPI_ASM_POWERPC_SIGNAL_H
  3 #define _UAPI_ASM_POWERPC_SIGNAL_H
  4 
  5 #include <linux/types.h>
  6 
  7 #define _NSIG           64
  8 #ifdef __powerpc64__
  9 #define _NSIG_BPW       64
 10 #else
 11 #define _NSIG_BPW       32
 12 #endif
 13 #define _NSIG_WORDS     (_NSIG / _NSIG_BPW)
 14 
 15 typedef unsigned long old_sigset_t;             /* at least 32 bits */
 16 
 17 typedef struct {
 18         unsigned long sig[_NSIG_WORDS];
 19 } sigset_t;
 20 
 21 #define SIGHUP           1
 22 #define SIGINT           2
 23 #define SIGQUIT          3
 24 #define SIGILL           4
 25 #define SIGTRAP          5
 26 #define SIGABRT          6
 27 #define SIGIOT           6
 28 #define SIGBUS           7
 29 #define SIGFPE           8
 30 #define SIGKILL          9
 31 #define SIGUSR1         10
 32 #define SIGSEGV         11
 33 #define SIGUSR2         12
 34 #define SIGPIPE         13
 35 #define SIGALRM         14
 36 #define SIGTERM         15
 37 #define SIGSTKFLT       16
 38 #define SIGCHLD         17
 39 #define SIGCONT         18
 40 #define SIGSTOP         19
 41 #define SIGTSTP         20
 42 #define SIGTTIN         21
 43 #define SIGTTOU         22
 44 #define SIGURG          23
 45 #define SIGXCPU         24
 46 #define SIGXFSZ         25
 47 #define SIGVTALRM       26
 48 #define SIGPROF         27
 49 #define SIGWINCH        28
 50 #define SIGIO           29
 51 #define SIGPOLL         SIGIO
 52 /*
 53 #define SIGLOST         29
 54 */
 55 #define SIGPWR          30
 56 #define SIGSYS          31
 57 #define SIGUNUSED       31
 58 
 59 /* These should not be considered constants from userland.  */
 60 #define SIGRTMIN        32
 61 #define SIGRTMAX        _NSIG
 62 
 63 /*
 64  * SA_FLAGS values:
 65  *
 66  * SA_ONSTACK is not currently supported, but will allow sigaltstack(2).
 67  * SA_RESTART flag to get restarting signals (which were the default long ago)
 68  * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
 69  * SA_RESETHAND clears the handler when the signal is delivered.
 70  * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
 71  * SA_NODEFER prevents the current signal from being masked in the handler.
 72  *
 73  * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
 74  * Unix names RESETHAND and NODEFER respectively.
 75  */
 76 #define SA_NOCLDSTOP    0x00000001U
 77 #define SA_NOCLDWAIT    0x00000002U
 78 #define SA_SIGINFO      0x00000004U
 79 #define SA_ONSTACK      0x08000000U
 80 #define SA_RESTART      0x10000000U
 81 #define SA_NODEFER      0x40000000U
 82 #define SA_RESETHAND    0x80000000U
 83 
 84 #define SA_NOMASK       SA_NODEFER
 85 #define SA_ONESHOT      SA_RESETHAND
 86 
 87 #define SA_RESTORER     0x04000000U
 88 
 89 #define MINSIGSTKSZ     2048
 90 #define SIGSTKSZ        8192
 91 
 92 #include <asm-generic/signal-defs.h>
 93 
 94 #ifndef __KERNEL__
 95 struct old_sigaction {
 96         __sighandler_t sa_handler;
 97         old_sigset_t sa_mask;
 98         unsigned long sa_flags;
 99         __sigrestore_t sa_restorer;
100 };
101 
102 struct sigaction {
103         __sighandler_t sa_handler;
104         unsigned long sa_flags;
105         __sigrestore_t sa_restorer;
106         sigset_t sa_mask;               /* mask last for extensibility */
107 };
108 #endif
109 
110 typedef struct sigaltstack {
111         void __user *ss_sp;
112         int ss_flags;
113         size_t ss_size;
114 } stack_t;
115 
116 
117 #ifndef __powerpc64__
118 /*
119  * These are parameters to dbg_sigreturn syscall.  They enable or
120  * disable certain debugging things that can be done from signal
121  * handlers.  The dbg_sigreturn syscall *must* be called from a
122  * SA_SIGINFO signal so the ucontext can be passed to it.  It takes an
123  * array of struct sig_dbg_op, which has the debug operations to
124  * perform before returning from the signal.
125  */
126 struct sig_dbg_op {
127         int dbg_type;
128         unsigned long dbg_value;
129 };
130 
131 /* Enable or disable single-stepping.  The value sets the state. */
132 #define SIG_DBG_SINGLE_STEPPING         1
133 
134 /* Enable or disable branch tracing.  The value sets the state. */
135 #define SIG_DBG_BRANCH_TRACING          2
136 #endif /* ! __powerpc64__ */
137 
138 #endif /* _UAPI_ASM_POWERPC_SIGNAL_H */
139 

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