+++ /dev/null
-/* lkdata.c */
-
-/*
- * (C) Copyright 1989-1995
- * All Rights Reserved
- *
- * Alan R. Baldwin
- * 721 Berkeley St.
- * Kent, Ohio 44240
- *
- * 28-Oct-97 JLH:
- * - change s_id from [NCPS] to pointer (comment)
- * 31-Oct-97 JLH:
- * - add jflag and jfp for NoICE output
- */
-
-#include <stdio.h>
-#include <string.h>
-#include "aslink.h"
-
-/*)Module lkdata.c
- *
- * The module lkdata contains the global variables
- * and structures used in the linker aslink.
- */
-
-/*
- * Definitions for all Global Variables
- */
-
-char *_abs_ = { ". .ABS." };
-
-int lkerr; /* Linker error flag
- */
-char *ip; /* Pointer into the REL file text line in ib[]
- */
-char ib[NINPUT]; /* REL file text line
- */
-char *rp; /* pointer into the LST file
- * text line in rb[]
- */
-char rb[NINPUT]; /* LST file text line being
- * address relocated
- */
-
-char sdccopt[NINPUT]="";
-char sdccopt_module[NINPUT]="";
-char curr_module[NINPUT]="";
-
-int dflag; /* Debug information output flag
- */
-int oflag; /* Output file type flag
- */
-int mflag; /* Map output flag
- */
-int sflag; /* JCF: Memory usage output flag
- */
-int aflag; /* Overlapping area warning flag
- */
-int jflag; /* NoICE output flag
- */
-int xflag; /* Map file radix type flag
- */
-int pflag; /* print linker command file flag
- */
-int uflag; /* Listing relocation flag
- */
-int rflag; /* Extended linear address record flag.
- */
-int radix; /* current number conversion radix:
- * 2 (binary), 8 (octal), 10 (decimal),
- * 16 (hexadecimal)
- */
-int line; /* current line number
- */
-int page; /* current page number
- */
-int lop; /* current line number on page
- */
-int pass; /* linker pass number
- */
-int rtcnt; /* count of elements in the
- * rtval[] and rtflg[] arrays
- */
-Addr_T rtval[NTXT]; /* data associated with relocation
- */
-int rtflg[NTXT]; /* indicates if rtval[] value is
- * to be sent to the output file.
- * (always set in this linker)
- */
-int hilo; /* REL file byte ordering
- */
-int gline; /* LST file relocation active
- * for current line
- */
-int gcntr; /* LST file relocation active
- * counter
- */
-Addr_T iram_size; /* internal ram size
- */
-long xram_size=-1; /* external ram size
- */
-long code_size=-1; /* code size
- */
-
-/*
- * The structure lfile contains a pointer to a
- * file specification string, the file type, and
- * a link to the next lfile structure.
- *
- * struct lfile
- * {
- * struct lfile *f_flp; lfile link
- * int f_type; File type
- * char *f_idp; Pointer to file spec
- * };
- */
-struct lfile *filep; /* The pointers (lfile *) filep,
- * (lfile *) cfp, and (FILE *) sfp
- * are used in conjunction with
- * the routine as_getline() to read
- * asmlnk commands from
- * (1) the standard input or
- * (2) or a command file
- * and to read the REL files
- * sequentially as defined by the
- * asmlnk input commands.
- *
- * The pointer *filep points to the
- * beginning of a linked list of
- * lfile structures.
- */
-struct lfile *cfp; /* The pointer *cfp points to the
- * current lfile structure
- */
-struct lfile *startp;/* asmlnk startup file structure
- */
-struct lfile *linkp; /* pointer to first lfile structure
- * containing an input REL file
- * specification
- */
-struct lfile *lfp; /* pointer to current lfile structure
- * being processed by parse()
- */
-FILE *ofp; /* Output file handle
- * for word formats
- */
-FILE *mfp; /* Map output file handle
- */
-FILE *jfp; /* NoICE output file handle
- */
-FILE *rfp; /* File handle for output
- * address relocated ASxxxx
- * listing file
- */
-FILE *sfp; /* The file handle sfp points to the
- * currently open file
- */
-FILE *tfp; /* File handle for input
- * ASxxxx listing file
- */
-FILE *dfp = NULL ; /*
- * File handle for debug
- * information output file
- */
-/*
- * The structures of head, area, areax, and sym are created
- * as the REL files are read during the first pass of the
- * linker. The struct head is created upon encountering a
- * H directive in the REL file. The structure contains a
- * link to a link file structure (struct lfile) which describes
- * the file containing the H directive, the number of data/code
- * areas contained in this header segment, the number of
- * symbols referenced/defined in this header segment, a pointer
- * to an array of pointers to areax structures (struct areax)
- * created as each A directive is read, and a pointer to an
- * array of pointers to symbol structures (struct sym) for
- * all referenced/defined symbols. As H directives are read
- * from the REL files a linked list of head structures is
- * created by placing a link to the new head structure
- * in the previous head structure.
- *
- * struct head
- * {
- * struct head *h_hp; Header link
- * struct lfile *h_lfile; Associated file
- * int h_narea; # of areas
- * struct areax **a_list; Area list
- * int h_nglob; # of global symbols
- * struct sym **s_list; Global symbol list
- * char m_id[NCPS]; Module name
- * };
- */
-struct head *headp; /* The pointer to the first
- * head structure of a linked list
- */
-struct head *hp; /* Pointer to the current
- * head structure
- */
-
-/*
- * A structure area is created for each 'unique' data/code
- * area definition found as the REL files are read. The
- * struct area contains the name of the area, a flag byte
- * which contains the area attributes (REL/CON/OVR/ABS),
- * an area subtype (not used in this assembler), and the
- * area base address and total size which will be filled
- * in at the end of the first pass through the REL files.
- * As A directives are read from the REL files a linked
- * list of unique area structures is created by placing a
- * link to the new area structure in the previous area structure.
- *
- * struct area
- * {
- * struct area *a_ap; Area link
- * struct areax *a_axp; Area extension link
- * Addr_T a_addr; Beginning address of area
- * Addr_T a_size; Total size of the area
- * char a_type; Area subtype
- * char a_flag; Flag byte
- * char a_id[NCPS]; Name
- * };
- */
-struct area *areap; /* The pointer to the first
- * area structure of a linked list
- */
-struct area *ap; /* Pointer to the current
- * area structure
- */
-
-/*
- * An areax structure is created for every A directive found
- * while reading the REL files. The struct areax contains a
- * link to the 'unique' area structure referenced by the A
- * directive and to the head structure this area segment is
- * a part of. The size of this area segment as read from the
- * A directive is placed in the areax structure. The beginning
- * address of this segment will be filled in at the end of the
- * first pass through the REL files. As A directives are read
- * from the REL files a linked list of areax structures is
- * created for each unique area. The final areax linked
- * list has at its head the 'unique' area structure linked
- * to the linked areax structures (one areax structure for
- * each A directive for this area).
- *
- * struct areax
- * {
- * struct areax *a_axp; Area extension link
- * struct area *a_bap; Base area link
- * struct head *a_bhp; Base header link
- * Addr_T a_addr; Beginning address of section
- * Addr_T a_size; Size of the area in section
- * };
- */
-struct areax *axp; /* Pointer to the current
- * areax structure
- */
-
-/*
- * A sym structure is created for every unique symbol
- * referenced/defined while reading the REL files. The
- * struct sym contains the symbol's name, a flag value
- * (not used in this linker), a symbol type denoting
- * referenced/defined, and an address which is loaded
- * with the relative address within the area in which
- * the symbol was defined. The sym structure also
- * contains a link to the area where the symbol was defined.
- * The sym structures are linked into linked lists using
- * the symbol link element.
- *
- * struct sym
- * {
- * struct sym *s_sp; Symbol link
- * struct areax *s_axp; Symbol area link
- * char s_type; Symbol subtype
- * char s_flag; Flag byte
- * Addr_T s_addr; Address
- * char *s_id; Name (JLH)
- * };
- */
-struct sym *symhash[NHASH]; /* array of pointers to NHASH
- * linked symbol lists
- */
-/*
- * The struct base contains a pointer to a
- * base definition string and a link to the next
- * base structure.
- *
- * struct base
- * {
- * struct base *b_base; Base link
- * char *b_strp; String pointer
- * };
- */
-struct base *basep; /* The pointer to the first
- * base structure
- */
-struct base *bsp; /* Pointer to the current
- * base structure
- */
-
-/*
- * The struct globl contains a pointer to a
- * global definition string and a link to the next
- * global structure.
- *
- * struct globl
- * {
- * struct globl *g_globl; Global link
- * char *g_strp; String pointer
- * };
- */
-struct globl *globlp;/* The pointer to the first
- * globl structure
- */
-struct globl *gsp; /* Pointer to the current
- * globl structure
- */
-
-/*
- * A structure sdp is created for each 'unique' paged
- * area definition found as the REL files are read.
- * As P directives are read from the REL files a linked
- * list of unique sdp structures is created by placing a
- * link to the new sdp structure in the previous area structure.
- *
- * struct sdp
- * {
- * struct area *s_area; Paged Area link
- * struct areax *s_areax; Paged Area Extension Link
- * Addr_T s_addr; Page address offset
- * };
- */
-struct sdp sdp; /* Base Page Structure */
-
-/*
- * The structure rerr is loaded with the information
- * required to report an error during the linking
- * process. The structure contains an index value
- * which selects the areax structure from the header
- * areax structure list, a mode value which selects
- * symbol or area relocation, the base address in the
- * area section, an area/symbol list index value, and
- * an area/symbol offset value.
- *
- * struct rerr
- * {
- * int aindex; Linking area
- * int mode; Relocation mode
- * Addr_T rtbase; Base address in section
- * int rindex; Area/Symbol reloaction index
- * Addr_T rval; Area/Symbol offset value
- * };
- */
-struct rerr rerr; /* Structure containing the
- * linker error information
- */
-
-/*
- * The structure lbpath is created for each library
- * path specification input by the -k option. The
- * lbpath structures are linked into a list using
- * the next link element.
- *
- * struct lbpath {
- * struct lbpath *next;
- * char *path;
- * };
- */
-struct lbpath *lbphead; /* pointer to the first
- * library path structure
- */
-
-/*
- * The structure lbname is created for all combinations of the
- * library path specifications (input by the -k option) and the
- * library file specifications (input by the -l option) that
- * lead to an existing file. The element path points to
- * the path string, element libfil points to the library
- * file string, and the element libspc is the concatenation
- * of the valid path and libfil strings.
- *
- * The lbpath structures are linked into a list
- * using the next link element.
- *
- * Each library file contains a list of object files
- * that are contained in the particular library. e.g.:
- *
- * \iolib\termio
- * \inilib\termio
- *
- * Only one specification per line is allowed.
- *
- * struct lbname {
- * struct lbname *next;
- * char *path;
- * char *libfil;
- * char *libspc;
- * };
- */
-struct lbname *lbnhead; /* pointer to the first
- * library name structure
- */
-
-/*
- * The function fndsym() searches through all combinations of the
- * library path specifications (input by the -k option) and the
- * library file specifications (input by the -l option) that
- * lead to an existing file for a symbol definition.
- *
- * The structure lbfile is created for the first library
- * object file which contains the definition for the
- * specified undefined symbol.
- *
- * The element libspc points to the library file path specification
- * and element relfil points to the object file specification string.
- * The element filspc is the complete path/file specification for
- * the library file to be imported into the linker. The
- * file specicifation may be formed in one of two ways:
- *
- * (1) If the library file contained an absolute
- * path/file specification then this becomes filspc.
- * (i.e. C:\...)
- *
- * (2) If the library file contains a relative path/file
- * specification then the concatenation of the path
- * and this file specification becomes filspc.
- * (i.e. \...)
- *
- * The lbpath structures are linked into a list
- * using the next link element.
- *
- * struct lbfile {
- * struct lbfile *next;
- * char *libspc;
- * char *relfil;
- * char *filspc;
- * };
- */
-struct lbfile *lbfhead; /* pointer to the first
- * library file structure
- */
-
-/*
- * array of character types, one per
- * ASCII character
- */
-unsigned char ctype[128] = {
-/*NUL*/ ILL, ILL, ILL, ILL, ILL, ILL, ILL, ILL,
-/*BS*/ ILL, SPACE, ILL, ILL, SPACE, ILL, ILL, ILL,
-/*DLE*/ ILL, ILL, ILL, ILL, ILL, ILL, ILL, ILL,
-/*CAN*/ ILL, ILL, ILL, ILL, ILL, ILL, ILL, ILL,
-/*SPC*/ SPACE, ETC, ETC, ETC, LETTER, BINOP, BINOP, ETC,
-/*(*/ ETC, ETC, BINOP, BINOP, ETC, BINOP, LETTER, BINOP,
-/*0*/ DGT2, DGT2, DGT8, DGT8, DGT8, DGT8, DGT8, DGT8,
-/*8*/ DGT10, DGT10, ETC, ETC, BINOP, ETC, BINOP, ETC,
-/*@*/ ETC, LTR16, LTR16, LTR16, LTR16, LTR16, LTR16, LETTER,
-/*H*/ LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
-/*P*/ LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
-/*X*/ LETTER, LETTER, LETTER, ETC, ETC, ETC, BINOP, LETTER,
-/*`*/ ETC, LTR16, LTR16, LTR16, LTR16, LTR16, LTR16, LETTER,
-/*h*/ LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
-/*p*/ LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
-/*x*/ LETTER, LETTER, LETTER, ETC, BINOP, ETC, ETC, ETC
-};
-
-/*
- * an array of characters which
- * perform the case translation function
- */
-#if CASE_SENSITIVE
-#else
-char ccase[128] = {
-/*NUL*/ '\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007',
-/*BS*/ '\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017',
-/*DLE*/ '\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027',
-/*CAN*/ '\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037',
-/*SPC*/ '\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047',
-/*(*/ '\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057',
-/*0*/ '\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067',
-/*8*/ '\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077',
-/*@*/ '\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
-/*H*/ '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
-/*P*/ '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
-/*X*/ '\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137',
-/*`*/ '\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
-/*h*/ '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
-/*p*/ '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
-/*x*/ '\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177'
-};
-#endif
projects / fw / sdcc / blobdiff