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Annotation of 43BSD/ucb/pascal/pdx/mappings/objaddr.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1980 Regents of the University of California.
        !             3:  * All rights reserved.  The Berkeley software License Agreement
        !             4:  * specifies the terms and conditions for redistribution.
        !             5:  */
        !             6: 
        !             7: #ifndef lint
        !             8: static char sccsid[] = "@(#)objaddr.c  5.1 (Berkeley) 6/6/85";
        !             9: #endif not lint
        !            10: /*
        !            11:  * Lookup the object address of a given line from the named file.
        !            12:  *
        !            13:  * Potentially all files in the file table need to be checked
        !            14:  * until the line is found since a particular file name may appear
        !            15:  * more than once in the file table (caused by includes).
        !            16:  */
        !            17: 
        !            18: #include "defs.h"
        !            19: #include "mappings.h"
        !            20: #include "object.h"
        !            21: #include "source.h"
        !            22: #include "filetab.h"
        !            23: #include "linetab.h"
        !            24: 
        !            25: ADDRESS objaddr(line, name)
        !            26: LINENO line;
        !            27: char *name;
        !            28: {
        !            29:     register FILETAB *ftp;
        !            30:     register LINENO i, j;
        !            31:     BOOLEAN foundfile;
        !            32: 
        !            33:     if (nlhdr.nlines == 0) {
        !            34:        return(-1);
        !            35:     }
        !            36:     if (name == NULL) {
        !            37:        name = cursource;
        !            38:     }
        !            39:     foundfile = FALSE;
        !            40:     for (ftp = &filetab[0]; ftp < &filetab[nlhdr.nfiles]; ftp++) {
        !            41:        if (streq(ftp->filename, name)) {
        !            42:            foundfile = TRUE;
        !            43:            i = ftp->lineindex;
        !            44:            if (ftp == &filetab[nlhdr.nfiles-1]) {
        !            45:                j = nlhdr.nlines;
        !            46:            } else {
        !            47:                j = (ftp + 1)->lineindex;
        !            48:            }
        !            49:            while (i < j) {
        !            50:                if (linetab[i].line == line) {
        !            51:                    return linetab[i].addr;
        !            52:                }
        !            53:                i++;
        !            54:            }
        !            55:        }
        !            56:     }
        !            57:     if (!foundfile) {
        !            58:        error("unknown source file \"%s\"", name);
        !            59:     }
        !            60:     return(-1);
        !            61: }

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