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Linux/arch/ia64/include/asm/signal.h

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  1 #ifndef _ASM_IA64_SIGNAL_H
  2 #define _ASM_IA64_SIGNAL_H
  3 
  4 /*
  5  * Modified 1998-2001, 2003
  6  *      David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co
  7  *
  8  * Unfortunately, this file is being included by bits/signal.h in
  9  * glibc-2.x.  Hence the #ifdef __KERNEL__ ugliness.
 10  */
 11 
 12 #define SIGHUP           1
 13 #define SIGINT           2
 14 #define SIGQUIT          3
 15 #define SIGILL           4
 16 #define SIGTRAP          5
 17 #define SIGABRT          6
 18 #define SIGIOT           6
 19 #define SIGBUS           7
 20 #define SIGFPE           8
 21 #define SIGKILL          9
 22 #define SIGUSR1         10
 23 #define SIGSEGV         11
 24 #define SIGUSR2         12
 25 #define SIGPIPE         13
 26 #define SIGALRM         14
 27 #define SIGTERM         15
 28 #define SIGSTKFLT       16
 29 #define SIGCHLD         17
 30 #define SIGCONT         18
 31 #define SIGSTOP         19
 32 #define SIGTSTP         20
 33 #define SIGTTIN         21
 34 #define SIGTTOU         22
 35 #define SIGURG          23
 36 #define SIGXCPU         24
 37 #define SIGXFSZ         25
 38 #define SIGVTALRM       26
 39 #define SIGPROF         27
 40 #define SIGWINCH        28
 41 #define SIGIO           29
 42 #define SIGPOLL         SIGIO
 43 /*
 44 #define SIGLOST         29
 45 */
 46 #define SIGPWR          30
 47 #define SIGSYS          31
 48 /* signal 31 is no longer "unused", but the SIGUNUSED macro remains for backwards compatibility */
 49 #define SIGUNUSED       31
 50 
 51 /* These should not be considered constants from userland.  */
 52 #define SIGRTMIN        32
 53 #define SIGRTMAX        _NSIG
 54 
 55 /*
 56  * SA_FLAGS values:
 57  *
 58  * SA_ONSTACK indicates that a registered stack_t will be used.
 59  * SA_RESTART flag to get restarting signals (which were the default long ago)
 60  * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
 61  * SA_RESETHAND clears the handler when the signal is delivered.
 62  * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
 63  * SA_NODEFER prevents the current signal from being masked in the handler.
 64  *
 65  * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
 66  * Unix names RESETHAND and NODEFER respectively.
 67  */
 68 #define SA_NOCLDSTOP    0x00000001
 69 #define SA_NOCLDWAIT    0x00000002
 70 #define SA_SIGINFO      0x00000004
 71 #define SA_ONSTACK      0x08000000
 72 #define SA_RESTART      0x10000000
 73 #define SA_NODEFER      0x40000000
 74 #define SA_RESETHAND    0x80000000
 75 
 76 #define SA_NOMASK       SA_NODEFER
 77 #define SA_ONESHOT      SA_RESETHAND
 78 
 79 #define SA_RESTORER     0x04000000
 80 
 81 /*
 82  * sigaltstack controls
 83  */
 84 #define SS_ONSTACK      1
 85 #define SS_DISABLE      2
 86 
 87 /*
 88  * The minimum stack size needs to be fairly large because we want to
 89  * be sure that an app compiled for today's CPUs will continue to run
 90  * on all future CPU models.  The CPU model matters because the signal
 91  * frame needs to have space for the complete machine state, including
 92  * all physical stacked registers.  The number of physical stacked
 93  * registers is CPU model dependent, but given that the width of
 94  * ar.rsc.loadrs is 14 bits, we can assume that they'll never take up
 95  * more than 16KB of space.
 96  */
 97 #if 1
 98   /*
 99    * This is a stupid typo: the value was _meant_ to be 131072 (0x20000), but I typed it
100    * in wrong. ;-(  To preserve backwards compatibility, we leave the kernel at the
101    * incorrect value and fix libc only.
102    */
103 # define MINSIGSTKSZ    131027  /* min. stack size for sigaltstack() */
104 #else
105 # define MINSIGSTKSZ    131072  /* min. stack size for sigaltstack() */
106 #endif
107 #define SIGSTKSZ        262144  /* default stack size for sigaltstack() */
108 
109 #ifdef __KERNEL__
110 
111 #define _NSIG           64
112 #define _NSIG_BPW       64
113 #define _NSIG_WORDS     (_NSIG / _NSIG_BPW)
114 
115 #endif /* __KERNEL__ */
116 
117 #include <asm-generic/signal-defs.h>
118 
119 # ifndef __ASSEMBLY__
120 
121 #  include <linux/types.h>
122 
123 /* Avoid too many header ordering problems.  */
124 struct siginfo;
125 
126 typedef struct sigaltstack {
127         void __user *ss_sp;
128         int ss_flags;
129         size_t ss_size;
130 } stack_t;
131 
132 #ifdef __KERNEL__
133 
134 /* Most things should be clean enough to redefine this at will, if care
135    is taken to make libc match.  */
136 
137 typedef unsigned long old_sigset_t;
138 
139 typedef struct {
140         unsigned long sig[_NSIG_WORDS];
141 } sigset_t;
142 
143 struct sigaction {
144         __sighandler_t sa_handler;
145         unsigned long sa_flags;
146         sigset_t sa_mask;               /* mask last for extensibility */
147 };
148 
149 struct k_sigaction {
150         struct sigaction sa;
151 };
152 
153 #  include <asm/sigcontext.h>
154 
155 #define ptrace_signal_deliver(regs, cookie) do { } while (0)
156 
157 #endif /* __KERNEL__ */
158 
159 # endif /* !__ASSEMBLY__ */
160 #endif /* _ASM_IA64_SIGNAL_H */
161 

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