Return to boot.c CVS log

Up to [CSRG BSD Unix] / 3BSD / sys / stand

Annotation of 3BSD/sys/stand/boot.c, revision 1.1

1.1     ! root        1: #include "../h/param.h"
        !             2: #include "../h/ino.h"
        !             3: #include "../h/inode.h"
        !             4: #include "../h/filsys.h"
        !             5: #include "../h/dir.h"
        !             6: #include "../h/vm.h"
        !             7: #include <a.out.h>
        !             8: #include "saio.h"
        !             9: 
        !            10: char line[100];
        !            11: 
        !            12: main()
        !            13: {
        !            14:        int i;
        !            15: 
        !            16:        printf("\nBoot\n");
        !            17:        do {
        !            18:                printf(": "); gets(line);
        !            19:                i = open(line,0);
        !            20:        } while (i < 0);
        !            21: 
        !            22:        copyunix(i);
        !            23: }
        !            24: 
        !            25: copyunix(io)
        !            26: register io;
        !            27: {
        !            28:        struct exec x;
        !            29:        register int i;
        !            30:        char *addr;
        !            31: 
        !            32:        i = read(io, (char *)&x, sizeof x);
        !            33:        if (i != sizeof x || x.a_magic != 0410)
        !            34:                _stop("Bad format\n");
        !            35:        printf("%d", x.a_text);
        !            36:        if (read(io, (char *)0, x.a_text) != x.a_text)
        !            37:                goto shread;
        !            38:        addr = (char *)x.a_text;
        !            39:        while ((int)addr & CLOFSET)
        !            40:                *addr++ = 0;
        !            41:        printf("+%d", x.a_data);
        !            42:        if (read(io, addr, x.a_data) != x.a_data)
        !            43:                goto shread;
        !            44:        addr += x.a_data;
        !            45:        printf("+%d", x.a_bss);
        !            46:        x.a_bss += 128*512;     /* slop */
        !            47:        for (i = 0; i < x.a_bss; i++)
        !            48:                *addr++ = 0;
        !            49:        x.a_entry &= 0x7fffffff;
        !            50:        printf(" start 0x%x\n", x.a_entry);
        !            51:        (*((int (*)()) x.a_entry))();
        !            52:        _exit();
        !            53: shread:
        !            54:        _stop("Short read\n");
        !            55: }

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