signal.h

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/*
 * Modified 1998-2001, 2003
 *  David Mosberger-Tang <[email protected]>, Hewlett-Packard Co
 *
 * Unfortunately, this file is being included by bits/signal.h in
 * glibc-2.x.  Hence the #ifdef __KERNEL__ ugliness.
 */
#ifndef _UAPI_ASM_IA64_SIGNAL_H
#define _UAPI_ASM_IA64_SIGNAL_H


#define SIGHUP       1
#define SIGINT       2
#define SIGQUIT      3
#define SIGILL       4
#define SIGTRAP      5
#define SIGABRT      6
#define SIGIOT       6
#define SIGBUS       7
#define SIGFPE       8
#define SIGKILL      9
#define SIGUSR1     10
#define SIGSEGV     11
#define SIGUSR2     12
#define SIGPIPE     13
#define SIGALRM     14
#define SIGTERM     15
#define SIGSTKFLT   16
#define SIGCHLD     17
#define SIGCONT     18
#define SIGSTOP     19
#define SIGTSTP     20
#define SIGTTIN     21
#define SIGTTOU     22
#define SIGURG      23
#define SIGXCPU     24
#define SIGXFSZ     25
#define SIGVTALRM   26
#define SIGPROF     27
#define SIGWINCH    28
#define SIGIO       29
#define SIGPOLL     SIGIO
/*
#define SIGLOST     29
*/
#define SIGPWR      30
#define SIGSYS      31
/* signal 31 is no longer "unused", but the SIGUNUSED macro remains for backwards compatibility */
#define SIGUNUSED   31

/* These should not be considered constants from userland.  */
#define SIGRTMIN    32
#define SIGRTMAX    _NSIG

/*
 * SA_FLAGS values:
 *
 * SA_ONSTACK indicates that a registered stack_t will be used.
 * SA_RESTART flag to get restarting signals (which were the default long ago)
 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
 * SA_RESETHAND clears the handler when the signal is delivered.
 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
 * SA_NODEFER prevents the current signal from being masked in the handler.
 *
 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
 * Unix names RESETHAND and NODEFER respectively.
 */
#define SA_NOCLDSTOP    0x00000001
#define SA_NOCLDWAIT    0x00000002
#define SA_SIGINFO  0x00000004
#define SA_ONSTACK  0x08000000
#define SA_RESTART  0x10000000
#define SA_NODEFER  0x40000000
#define SA_RESETHAND    0x80000000

#define SA_NOMASK   SA_NODEFER
#define SA_ONESHOT  SA_RESETHAND

#define SA_RESTORER 0x04000000

/*
 * sigaltstack controls
 */
#define SS_ONSTACK  1
#define SS_DISABLE  2

/*
 * The minimum stack size needs to be fairly large because we want to
 * be sure that an app compiled for today's CPUs will continue to run
 * on all future CPU models.  The CPU model matters because the signal
 * frame needs to have space for the complete machine state, including
 * all physical stacked registers.  The number of physical stacked
 * registers is CPU model dependent, but given that the width of
 * ar.rsc.loadrs is 14 bits, we can assume that they'll never take up
 * more than 16KB of space.
 */
#if 1
  /*
   * This is a stupid typo: the value was _meant_ to be 131072 (0x20000), but I typed it
   * in wrong. ;-(  To preserve backwards compatibility, we leave the kernel at the
   * incorrect value and fix libc only.
   */
# define MINSIGSTKSZ    131027  /* min. stack size for sigaltstack() */
#else
# define MINSIGSTKSZ    131072  /* min. stack size for sigaltstack() */
#endif
#define SIGSTKSZ    262144  /* default stack size for sigaltstack() */


#include <asm-generic/signal-defs.h>

# ifndef __ASSEMBLY__

#  include <linux/types.h>

/* Avoid too many header ordering problems.  */
struct siginfo;

typedef struct sigaltstack {
    void __user *ss_sp;
    int ss_flags;
    size_t ss_size;
} stack_t;


# endif /* !__ASSEMBLY__ */
#endif /* _UAPI_ASM_IA64_SIGNAL_H */