#include <linux/signal.h>
#include "signal.h"

/* provide a mapping of arch signal to internal signal # for mediation
 * those that are always an alias SIGCLD for SIGCLHD and SIGPOLL for SIGIO
 * map to the same entry those that may/or may not get a separate entry
 */
static const int sig_map[MAXMAPPED_SIG] = {
        [0] = MAXMAPPED_SIG,    /* existence test */
        [SIGHUP] = 1,
        [SIGINT] = 2,
        [SIGQUIT] = 3,
        [SIGILL] = 4,
        [SIGTRAP] = 5,          /* -, 5, - */
        [SIGABRT] = 6,          /*  SIGIOT: -, 6, - */
        [SIGBUS] = 7,           /* 10, 7, 10 */
        [SIGFPE] = 8,
        [SIGKILL] = 9,
        [SIGUSR1] = 10,         /* 30, 10, 16 */
        [SIGSEGV] = 11,
        [SIGUSR2] = 12,         /* 31, 12, 17 */
        [SIGPIPE] = 13,
        [SIGALRM] = 14,
        [SIGTERM] = 15,
#ifdef SIGSTKFLT
        [SIGSTKFLT] = 16,       /* -, 16, - */
#endif
        [SIGCHLD] = 17,         /* 20, 17, 18.  SIGCHLD -, -, 18 */
        [SIGCONT] = 18,         /* 19, 18, 25 */
        [SIGSTOP] = 19,         /* 17, 19, 23 */
        [SIGTSTP] = 20,         /* 18, 20, 24 */
        [SIGTTIN] = 21,         /* 21, 21, 26 */
        [SIGTTOU] = 22,         /* 22, 22, 27 */
        [SIGURG] = 23,          /* 16, 23, 21 */
        [SIGXCPU] = 24,         /* 24, 24, 30 */
        [SIGXFSZ] = 25,         /* 25, 25, 31 */
        [SIGVTALRM] = 26,       /* 26, 26, 28 */
        [SIGPROF] = 27,         /* 27, 27, 29 */
        [SIGWINCH] = 28,        /* 28, 28, 20 */
        [SIGIO] = 29,           /* SIGPOLL: 23, 29, 22 */
        [SIGPWR] = 30,          /* 29, 30, 19.  SIGINFO 29, -, - */
#ifdef SIGSYS
        [SIGSYS] = 31,          /* 12, 31, 12. often SIG LOST/UNUSED */
#endif
#ifdef SIGEMT
        [SIGEMT] = 32,          /* 7, - , 7 */
#endif
#if defined(SIGLOST) && SIGPWR != SIGLOST               /* sparc */
        [SIGLOST] = 33,         /* unused on Linux */
#endif
#if defined(SIGUNUSED) && \
    defined(SIGLOST) && defined(SIGSYS) && SIGLOST != SIGSYS
        [SIGUNUSED] = 34,       /* -, 31, - */
#endif
};

/* this table is ordered post sig_map[sig] mapping */
static const char *const sig_names[MAXMAPPED_SIGNAME] = {
        "unknown",
        "hup",
        "int",
        "quit",
        "ill",
        "trap",
        "abrt",
        "bus",
        "fpe",
        "kill",
        "usr1",
        "segv",
        "usr2",
        "pipe",
        "alrm",
        "term",
        "stkflt",
        "chld",
        "cont",
        "stop",
        "stp",
        "ttin",
        "ttou",
        "urg",
        "xcpu",
        "xfsz",
        "vtalrm",
        "prof",
        "winch",
        "io",
        "pwr",
        "sys",
        "emt",
        "lost",
        "unused",

        "exists",       /* always last existence test mapped to MAXMAPPED_SIG */
};