Return to main.c CVS log

Up to [CSRG BSD Unix] / 42BSD / usr.lib / libF77

Annotation of 42BSD/usr.lib/libF77/main.c, revision 1.1

1.1     ! root        1: /* STARTUP PROCEDURE FOR UNIX FORTRAN PROGRAMS */
        !             2: char id_libF77[] = "@(#)main.c 2.15    8/25/83";
        !             3: 
        !             4: #include <stdio.h>
        !             5: #include <signal.h>
        !             6: #include "../libI77/fiodefs.h"
        !             7: 
        !             8: int xargc;
        !             9: char **xargv;
        !            10: 
        !            11: main(argc, argv, arge)
        !            12: int argc;
        !            13: char **argv;
        !            14: char **arge;
        !            15: {
        !            16: int sigdie();
        !            17: long int (*sigf)();
        !            18: int signum;
        !            19: 
        !            20: xargc = argc;
        !            21: xargv = argv;
        !            22: 
        !            23: for (signum=1; signum<=16; signum++)
        !            24: {
        !            25:        if((sigf=signal(signum, sigdie)) != SIG_DFL) signal(signum, sigf);
        !            26: }
        !            27: 
        !            28: #ifdef pdp11
        !            29:        ldfps(01200); /* detect overflow as an exception */
        !            30: #endif
        !            31: 
        !            32: f_init();
        !            33: MAIN_();
        !            34: f_exit();
        !            35: }
        !            36: 
        !            37: struct action {
        !            38:        char *mesg;
        !            39:        int   core;
        !            40: } sig_act[16] = {
        !            41:        {"Hangup", 0},                  /* SIGHUP  */
        !            42:        {"Interrupt!", 0},              /* SIGINT  */
        !            43:        {"Quit!", 1},                   /* SIGQUIT */
        !            44:        {"Illegal ", 1},                /* SIGILL  */
        !            45:        {"Trace Trap", 1},              /* SIGTRAP */
        !            46:        {"IOT Trap", 1},                /* SIGIOT  */
        !            47:        {"EMT Trap", 1},                /* SIGEMT  */
        !            48:        {"Arithmetic Exception", 1},    /* SIGFPE  */
        !            49:        { 0, 0},                        /* SIGKILL */
        !            50:        {"Bus error", 1},               /* SIGBUS  */
        !            51:        {"Segmentation violation", 1},  /* SIGSEGV */
        !            52:        {"Sys arg", 1},                 /* SIGSYS  */
        !            53:        {"Open pipe", 0},               /* SIGPIPE */
        !            54:        {"Alarm", 0},                   /* SIGALRM */
        !            55:        {"Terminated", 0},              /* SIGTERM */
        !            56:        {"Sig 16", 0},                  /* unassigned */
        !            57: };
        !            58: 
        !            59: struct action act_fpe[] = {
        !            60:        {"Integer overflow", 1},
        !            61:        {"Integer divide by 0", 1},
        !            62:        {"Floating point overflow trap", 1},
        !            63:        {"Floating divide by zero trap", 1},
        !            64:        {"Floating point underflow trap", 1},
        !            65:        {"Decimal overflow", 1},
        !            66:        {"Subscript range", 1},
        !            67:        {"Floating point overflow", 0},
        !            68:        {"Floating divide by zero", 0},
        !            69:        {"Floating point underflow", 0},
        !            70: };
        !            71: 
        !            72: struct action act_ill[] = {
        !            73:        {"addr mode", 1},
        !            74:        {"instruction", 1},
        !            75:        {"operand", 0},
        !            76: };
        !            77: 
        !            78: #if    vax
        !            79: sigdie(s, t, sc)
        !            80: int s; int t; struct sigcontext *sc;
        !            81: 
        !            82: #else  pdp11
        !            83: sigdie(s, t, pc)
        !            84: int s; int t; long pc;
        !            85: 
        !            86: #endif
        !            87: {
        !            88: extern unit units[];
        !            89: register struct action *act = &sig_act[s-1];
        !            90: /* print error message, then flush buffers */
        !            91: 
        !            92: if (s == SIGHUP || s == SIGINT || s == SIGQUIT)
        !            93:        signal(s, SIG_IGN);     /* don't allow it again */
        !            94: else
        !            95:        signal(s, SIG_DFL);     /* shouldn't happen again, but ... */
        !            96: 
        !            97: #if    vax
        !            98: sigsetmask(0);                 /* don't block */
        !            99: #endif
        !           100: 
        !           101: if (act->mesg)
        !           102:        {
        !           103:        fprintf(units[STDERR].ufd, "*** %s", act->mesg);
        !           104:        if (s == SIGFPE)
        !           105:                {
        !           106:                if (t >= 1 && t <= 10)
        !           107:                        fprintf(units[STDERR].ufd, ": %s", act_fpe[t-1].mesg);
        !           108:                else
        !           109:                        fprintf(units[STDERR].ufd, ": Type=%d?", t);
        !           110:                }
        !           111:        else if (s == SIGILL)
        !           112:                {
        !           113:                if (t == 4) t = 2;      /* 4.0bsd botch */
        !           114:                if (t >= 0 && t <= 2)
        !           115:                        fprintf(units[STDERR].ufd, "%s", act_ill[t].mesg);
        !           116:                else
        !           117:                        fprintf(units[STDERR].ufd, "compat mode: Code=%d", t);
        !           118:                }
        !           119:        putc('\n', units[STDERR].ufd);
        !           120:        }
        !           121: f_exit();
        !           122: _cleanup();
        !           123: 
        !           124: if(act->core)
        !           125:        {
        !           126:        /* now get a core */
        !           127: #if    vax
        !           128:        signal(SIGILL, SIG_DFL);
        !           129: #else  pdp11
        !           130:        signal(SIGIOT, SIG_DFL);
        !           131: #endif
        !           132:        abort();
        !           133:        }
        !           134: exit(s);
        !           135: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.