--- /dev/null
+/* lklibr.c */
+
+/*
+ * (C) Copyright 1989-1995
+ * All Rights Reserved
+ *
+ * Alan R. Baldwin
+ * 721 Berkeley St.
+ * Kent, Ohio 44240
+ *
+ * With contributions for the
+ * object libraries from
+ * Ken Hornstein
+ * kenh@cmf.nrl.navy.mil
+ *
+ */
+
+/*
+ * Extensions: P. Felber
+ */
+
+#define EQ(A,B) !strcmp((A),(B))
+#define MAXLINE 254 /*when using fgets*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include "aslink.h"
+
+/*)Module lklibr.c
+ *
+ * The module lklibr.c contains the functions which
+ * (1) specify the path(s) to library files [.LIB]
+ * (2) specify the library file(s) [.LIB] to search
+ * (3) search the library files for specific symbols
+ * and link the module containing this symbol
+ *
+ * lklibr.c contains the following functions:
+ * VOID addpath()
+ * VOID addlib()
+ * VOID addfile()
+ * VOID search()
+ * VOID fndsym()
+ * VOID library()
+ * VOID loadfile()
+ *
+ */
+
+#ifdef INDEXLIB
+typedef struct slibrarysymbol mlibrarysymbol;
+typedef struct slibrarysymbol *pmlibrarysymbol;
+
+struct slibrarysymbol {
+ char * name; /*Warning: allocate memory before using*/
+ pmlibrarysymbol next;
+};
+
+typedef struct slibraryfile mlibraryfile;
+typedef struct slibraryfile *pmlibraryfile;
+
+struct slibraryfile {
+ int loaded;
+ char * libspc;
+ char * relfil; /*Warning: allocate memory before using*/
+ char * filename; /*Warning: allocate memory before using*/
+ long offset; //if > 0, the embedded file offset in the library file libspc
+ pmlibrarysymbol symbols;
+ pmlibraryfile next;
+};
+
+/* First entry in the library object symbol cache */
+pmlibraryfile libr=NULL;
+
+int buildlibraryindex(void);
+void freelibraryindex (void);
+#endif /* INDEXLIB */
+
+/*)Function VOID addpath()
+ *
+ * The function addpath() creates a linked structure containing
+ * the paths to various object module library files.
+ *
+ * local variables:
+ * lbpath *lbph pointer to new path structure
+ * lbpath *lbp temporary pointer
+ *
+ * global variables:
+ * lbpath *lbphead The pointer to the first
+ * path structure
+ *
+ * functions called:
+ * char getnb() lklex.c
+ * VOID * new() lksym.c
+ * int strlen() c_library
+ * char * strcpy() c_library
+ * VOID unget() lklex.c
+ *
+ * side effects:
+ * An lbpath structure may be created.
+ */
+
+VOID
+addpath(void)
+{
+ struct lbpath *lbph, *lbp;
+
+ lbph = (struct lbpath *) new (sizeof(struct lbpath));
+ if (lbphead == NULL) {
+ lbphead = lbph;
+ } else {
+ lbp = lbphead;
+ while (lbp->next)
+ {
+ lbp = lbp->next;
+ }
+ lbp->next = lbph;
+ }
+ unget(getnb());
+ lbph->path = (char *) new (strlen(ip)+1);
+ strcpy(lbph->path, ip);
+}
+
+/*)Function VOID addlib()
+ *
+ * The function addlib() tests for the existance of a
+ * library path structure to determine the method of
+ * adding this library file to the library search structure.
+ *
+ * This function calls the function addfile() to actually
+ * add the library file to the search list.
+ *
+ * local variables:
+ * lbpath *lbph pointer to path structure
+ *
+ * global variables:
+ * lbpath *lbphead The pointer to the first
+ * path structure
+ * ip a pointer to the library name
+ *
+ * functions called:
+ * VOID addfile() lklibr.c
+ * char getnb() lklex.c
+ * VOID unget() lklex.c
+ *
+ * side effects:
+ * The function addfile() may add the file to
+ * the library search list.
+ */
+
+VOID
+addlib(void)
+{
+ struct lbpath *lbph;
+ int foundcount=0;
+
+ unget(getnb());
+
+ if (lbphead == NULL)
+ {
+ foundcount=addfile(NULL, ip);
+ }
+ else
+ {
+ for (lbph=lbphead; lbph; lbph=lbph->next)
+ {
+ foundcount+=addfile(lbph->path, ip);
+ }
+ }
+ if(foundcount == 0)
+ {
+ fprintf(stderr, "?ASlink-Warning-Couldn't find library '%s'\n", ip);
+ }
+}
+
+/*)Function int addfile(path,libfil)
+ *
+ * char *path library path specification
+ * char *libfil library file specification
+ *
+ * The function addfile() searches for the library file
+ * by concatenating the path and libfil specifications.
+ * if the library is found, an lbname structure is created
+ * and linked to any previously defined structures. This
+ * linked list is used by the function fndsym() to attempt
+ * to find any undefined symbols.
+ *
+ * The function does not give report an error on invalid
+ * path / file specifications or if the file is not found.
+ *
+ * local variables:
+ * lbname *lbnh pointer to new name structure
+ * lbname *lbn temporary pointer
+ *
+ * global variables:
+ * lbname *lbnhead The pointer to the first
+ * path structure
+ *
+ * functions called:
+ * char getnb() lklex.c
+ * VOID * new() lksym.c
+ * int strlen() c_library
+ * char * strcpy() c_library
+ * VOID unget() lklex.c
+ *
+ * side effects:
+ * An lbname structure may be created.
+ *
+ * return:
+ * 1: the library was found
+ * 0: the library was not found
+ */
+
+int addfile(char * path, char * libfil)
+{
+ FILE *fp;
+ char *str;
+ struct lbname *lbnh, *lbn;
+#ifdef OTHERSYSTEM
+ int libfilinc=0;
+#endif
+
+ if (path != NULL)
+ {
+ str = (char *) new (strlen(path) + strlen(libfil) + 6);
+ strcpy(str, path);
+#ifdef OTHERSYSTEM
+ if (strlen(str) && (str[strlen(str)-1] != '/') && (str[strlen(str)-1] != LKDIRSEP))
+ {
+ strcat(str, LKDIRSEPSTR);
+ }
+#endif
+ }
+ else
+ {
+ str = (char *) new (strlen(libfil) + 5);
+ }
+
+#ifdef OTHERSYSTEM
+ if ((libfil[0] == '/') || (libfil[0] == LKDIRSEP))
+ {
+ libfil++;
+ libfilinc=1;
+ }
+#endif
+
+ strcat(str, libfil);
+ if(strchr(libfil, FSEPX) == NULL)
+ {
+ sprintf(&str[strlen(str)], "%clib", FSEPX);
+ }
+
+ fp=fopen(str, "r");
+ if(fp == NULL)
+ {
+ /*Ok, that didn't work. Try with the 'libfil' name only*/
+#ifdef OTHERSYSTEM
+ if(libfilinc) libfil--;
+#endif
+ fp=fopen(libfil, "r");
+ if(fp != NULL)
+ {
+ /*Bingo! 'libfil' is the absolute path of the library*/
+ strcpy(str, libfil);
+ path=NULL;/*This way 'libfil' and 'path' will be rebuilt from 'str'*/
+ }
+ }
+
+ if(path==NULL)
+ {
+ /*'path' can not be null since it is needed to find the object files associated with
+ the library. So, get 'path' from 'str' and then chop it off and recreate 'libfil'.
+ That way putting 'path' and 'libfil' together will result into the original filepath
+ as contained in 'str'.*/
+ int j;
+ path = (char *) new (strlen(str) + 1);
+ strcpy(path, str);
+ for(j=strlen(path)-1; j>=0; j--)
+ {
+ if((path[j] == '/') || (path[j] == LKDIRSEP))
+ {
+ strcpy(libfil, &path[j+1]);
+ path[j+1]=0;
+ break;
+ }
+ }
+ if(j<=0) path[0]=0;
+ }
+
+ if (fp != NULL)
+ {
+ fclose(fp);
+ lbnh = (struct lbname *) new (sizeof(struct lbname));
+ if (lbnhead == NULL)
+ {
+ lbnhead = lbnh;
+ }
+ else
+ {
+ lbn = lbnhead;
+ while (lbn->next)
+ {
+ lbn = lbn->next;
+ }
+ lbn->next = lbnh;
+ }
+
+ lbnh->path = path;
+ lbnh->libfil = (char *) new (strlen(libfil) + 1);
+ strcpy(lbnh->libfil, libfil);
+ lbnh->libspc = str;
+ return 1;
+ }
+ else
+ {
+ free(str);
+ return 0;
+ }
+}
+
+/*)Function VOID search()
+ *
+ * The function search() looks through all the symbol tables
+ * at the end of pass 1. If any undefined symbols are found
+ * then the function fndsym() is called. Function fndsym()
+ * searches any specified library files to automagically
+ * import the object modules containing the needed symbol.
+ *
+ * After a symbol is found and imported by the function
+ * fndsym() the symbol tables are again searched. The
+ * symbol tables are search until no more symbols can be
+ * resolved within the library files. This ensures that
+ * back references from one library module to another are
+ * also resolved.
+ *
+ * local variables:
+ * int i temporary counter
+ * sym *sp pointer to a symbol structure
+ * int symfnd found a symbol flag
+ *
+ * global variables:
+ * sym *symhash[] array of pointers to symbol tables
+ *
+ * functions called:
+ * int fndsym() lklibr.c
+ *
+ * side effects:
+ * If a symbol is found then the library object module
+ * containing the symbol will be imported and linked.
+ */
+
+VOID
+search(void)
+{
+ register struct sym *sp;
+ register int i, symfnd;
+
+ /*
+ * Look for undefined symbols. Keep
+ * searching until no more symbols are resolved.
+ */
+ symfnd = 1;
+ while (symfnd) {
+ symfnd = 0;
+ /*
+ * Look through all the symbols
+ */
+ for (i=0; i<NHASH; ++i) {
+ sp = symhash[i];
+ while (sp) {
+ /* If we find an undefined symbol
+ * (one where S_DEF is not set), then
+ * try looking for it. If we find it
+ * in any of the libraries then
+ * increment symfnd. This will force
+ * another pass of symbol searching and
+ * make sure that back references work.
+ */
+ if ((sp->s_type & S_DEF) == 0) {
+ if (fndsym(sp->s_id)) {
+ symfnd++;
+ }
+ }
+ sp = sp->s_sp;
+ }
+ }
+ }
+}
+
+/*Load a .rel file embedded in a sdcclib file*/
+void LoadRel(char * libfname, FILE * libfp, char * ModName)
+{
+ char str[NINPUT+2];
+ int state=0;
+
+ while (fgets(str, NINPUT, libfp) != NULL)
+ {
+ str[NINPUT+1] = '\0';
+ chop_crlf(str);
+ switch(state)
+ {
+ case 0:
+ if(EQ(str, "<FILE>"))
+ {
+ fgets(str, NINPUT, libfp);
+ str[NINPUT+1] = '\0';
+ chop_crlf(str);
+ if(EQ(str, ModName)) state=1;
+ else
+ {
+ fprintf(stderr, "?ASlink-Error-Bad offset in library file %s(%s)\n",
+ libfname, ModName);
+ lkexit(1);
+ }
+ }
+ break;
+ case 1:
+ if(EQ(str, "<REL>")) state=2;
+ break;
+ case 2:
+ if(EQ(str, "</REL>")) return;
+ ip = str;
+ link_main();
+ break;
+ }
+ }
+}
+
+/*Load an .adb file embedded in a sdcclib file. If there is
+something between <ADB> and </ADB> returns 1, otherwise returns 0.
+This way the aomf51 will not have useless empty modules. */
+
+int LoadAdb(FILE * libfp)
+{
+ char str[MAXLINE+1];
+ int state=0;
+ int ToReturn=0;
+
+ while (fgets(str, MAXLINE, libfp) != NULL)
+ {
+ str[NINPUT+1] = '\0';
+ chop_crlf(str);
+ switch(state)
+ {
+ case 0:
+ if(EQ(str, "<ADB>")) state=1;
+ break;
+ case 1:
+ if(EQ(str, "</ADB>")) return ToReturn;
+ fprintf(dfp, "%s\n", str);
+ ToReturn=1;
+ break;
+ }
+ }
+ return ToReturn;
+}
+
+/*Check for a symbol in a SDCC library. If found, add the embedded .rel and
+.adb files from the library. The library must be created with the SDCC
+librarian 'sdcclib' since the linking process depends on the correct file offsets
+embedded in the library file.*/
+
+int SdccLib(char * PathLib, FILE * libfp, char * DirLib, char * SymName)
+{
+ struct lbfile *lbfh, *lbf;
+ char ModName[NCPS]="";
+ char FLine[MAXLINE+1];
+ int state=0;
+ long IndexOffset=0, FileOffset;
+
+ while(!feof(libfp))
+ {
+ FLine[0]=0;
+ fgets(FLine, MAXLINE, libfp);
+ chop_crlf(FLine);
+
+ switch(state)
+ {
+ case 0:
+ if(EQ(FLine, "<INDEX>"))
+ {
+ /*The next line has the size of the index*/
+ FLine[0]=0;
+ fgets(FLine, MAXLINE, libfp);
+ chop_crlf(FLine);
+ IndexOffset=atol(FLine);
+ state=1;
+ }
+ break;
+ case 1:
+ if(EQ(FLine, "<MODULE>"))
+ {
+ /*The next line has the name of the module and the offset
+ of the corresponding embedded file in the library*/
+ FLine[0]=0;
+ fgets(FLine, MAXLINE, libfp);
+ chop_crlf(FLine);
+ sscanf(FLine, "%s %ld", ModName, &FileOffset);
+ state=2;
+ }
+ else if(EQ(FLine, "</INDEX>"))
+ {
+ /*Reached the end of the index. The symbol is not in this library.*/
+ return 0;
+ }
+ break;
+ case 2:
+ if(EQ(FLine, "</MODULE>"))
+ {
+ /*The symbol is not in this module, try the next one*/
+ state=1;
+ }
+ else
+ {
+ /*Check if this is the symbol we are looking for.*/
+ if (strncmp(SymName, FLine, NCPS)==0)
+ {
+ /*The symbol is in this module.*/
+
+ /*As in the original library format, it is assumed that the .rel
+ files reside in the same directory as the lib files.*/
+ strcat(DirLib, ModName);
+ sprintf(&DirLib[strlen(DirLib)], "%c%s", FSEPX, LKOBJEXT);
+
+ /*If this module has been loaded already don't load it again.*/
+ lbf = lbfhead;
+ while (lbf)
+ {
+ if(EQ(DirLib, lbf->filspc)) return 1;/*Already loaded*/
+ lbf=lbf->next;
+ }
+
+ /*Add the embedded file to the list of files to be loaded in
+ the second pass. That is performed latter by the function
+ library() below.*/
+ lbfh = (struct lbfile *) new (sizeof(struct lbfile));
+ if (lbfhead == NULL)
+ {
+ lbfhead = lbfh;
+ }
+ else
+ {
+ lbf = lbfhead;
+ while (lbf->next)
+ {
+ lbf = lbf->next;
+ }
+ lbf->next = lbfh;
+ }
+
+ lbfh->libspc = PathLib;
+ lbfh->filspc = DirLib;
+ lbfh->relfil = (char *) new (strlen(ModName) + 1);
+ strcpy(lbfh->relfil, ModName);
+ /*Library embedded file, so lbfh->offset must be >=0*/
+ lbfh->offset = IndexOffset+FileOffset;
+
+ /*Jump to where the .rel begins and load it.*/
+ fseek(libfp, lbfh->offset, SEEK_SET);
+ LoadRel(PathLib, libfp, ModName);
+
+ /* if cdb information required & .adb file present */
+ if (dflag && dfp)
+ {
+ if(LoadAdb(libfp))
+ SaveLinkedFilePath(DirLib);
+ }
+ return 1; /*Found the symbol, so success!*/
+ }
+ }
+ break;
+
+ default:
+ return 0; /*It should never reach this point, but just in case...*/
+ break;
+ }
+ }
+
+ return 0; /*The symbol is not in this library*/
+}
+
+/*)Function VOID fndsym(name)
+ *
+ * char *name symbol name to find
+ *
+ * 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.
+ *
+ * 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 structure lbfile is created for the first library
+ * object file which contains the definition for the
+ * specified undefined symbol.
+ *
+ * If the library file [.LIB] contains file specifications for
+ * non existant files, no errors are returned.
+ *
+ * local variables:
+ * char buf[] [.REL] file input line
+ * char c [.REL] file input character
+ * FILE *fp file handle for object file
+ * lbfile *lbf temporary pointer
+ * lbfile *lbfh pointer to lbfile structure
+ * FILE *libfp file handle for library file
+ * lbname *lbnh pointer to lbname structure
+ * char *path file specification path
+ * char relfil[] [.REL] file specification
+ * char *str combined path and file specification
+ * char symname[] [.REL] file symbol string
+ *
+ * global variables:
+ * lbname *lbnhead The pointer to the first
+ * name structure
+ * lbfile *lbfhead The pointer to the first
+ * file structure
+ *
+ * functions called:
+ * int fclose() c_library
+ * int fgets() c_library
+ * FILE *fopen() c_library
+ * VOID free() c_library
+ * char getnb() lklex.c
+ * VOID lkexit() lkmain.c
+ * VOID loadfile() lklibr.c
+ * VOID * new() lksym.c
+ * char * sprintf() c_library
+ * int sscanf() c_library
+ * char * strcat() c_library
+ * char * strchr() c_library
+ * char * strcpy() c_library
+ * int strlen() c_library
+ * int strncmp() c_library
+ * VOID unget() lklex.c
+ *
+ * side effects:
+ * If the symbol is found then a new lbfile structure
+ * is created and added to the linked list of lbfile
+ * structures. The file containing the found symbol
+ * is linked.
+ */
+
+#ifdef INDEXLIB
+
+int fndsym( char *name )
+{
+ struct lbfile *lbfh, *lbf;
+ pmlibraryfile ThisLibr;
+ pmlibrarysymbol ThisSym = NULL;
+
+ pmlibraryfile FirstFound;
+ int numfound=0;
+
+ /* Build the index if this is the first call to fndsym */
+ if (libr==NULL) buildlibraryindex();
+
+ /* Iterate through all library object files */
+ ThisLibr = libr;
+ FirstFound = libr; /*So gcc stops whining*/
+ while (ThisLibr)
+ {
+ /* Iterate through all symbols in an object file */
+ ThisSym = ThisLibr->symbols;
+
+ while (ThisSym)
+ {
+ if (!strcmp(ThisSym->name, name))
+ {
+ if ((!ThisLibr->loaded) && (numfound==0))
+ {
+ /* Object file is not loaded - add it to the list */
+ lbfh = (struct lbfile *) new (sizeof(struct lbfile));
+ if (lbfhead == NULL)
+ {
+ lbfhead = lbfh;
+ }
+ else
+ {
+ lbf = lbfhead;
+ while (lbf->next)
+ {
+ lbf = lbf->next;
+ }
+ lbf->next = lbfh;
+ }
+ lbfh->libspc = ThisLibr->libspc;
+ lbfh->filspc = ThisLibr->filename;
+ lbfh->relfil = (char *) new (strlen(ThisLibr->relfil) + 1);
+ strcpy(lbfh->relfil, ThisLibr->relfil);
+ lbfh->offset = ThisLibr->offset;
+ if(lbfh->offset>0)
+ { /*For an embedded object file in a library*/
+ void loadfile_SdccLib(char * libspc, char * module, long offset);
+ loadfile_SdccLib(lbfh->libspc, lbfh->relfil, lbfh->offset);
+ }
+ else
+ { /*For a stand alone object file*/
+ /* if cdb information required & adb file present */
+ if (dflag && dfp)
+ {
+ FILE *xfp = afile(lbfh->filspc, "adb",0);
+ if (xfp)
+ {
+ SaveLinkedFilePath(lbfh->filspc);
+ copyfile(dfp, xfp);
+ fclose(xfp);
+ }
+ }
+ loadfile(lbfh->filspc);
+ }
+ ThisLibr->loaded=1;
+ }
+
+ if(numfound==0)
+ {
+ numfound++;
+ FirstFound=ThisLibr;
+ }
+ else
+ {
+ char absPath1[PATH_MAX];
+ char absPath2[PATH_MAX];
+#if defined(__BORLANDC__) || defined(_MSC_VER) || defined(__MINGW32__)
+ int j;
+
+ _fullpath(absPath1, FirstFound->libspc, PATH_MAX);
+ _fullpath(absPath2, ThisLibr->libspc, PATH_MAX);
+ for(j=0; absPath1[j]!=0; j++) absPath1[j]=tolower((unsigned char)absPath1[j]);
+ for(j=0; absPath2[j]!=0; j++) absPath2[j]=tolower((unsigned char)absPath2[j]);
+#else
+ realpath(FirstFound->libspc, absPath1);
+ realpath(ThisLibr->libspc, absPath2);
+#endif
+ if( !( EQ(absPath1, absPath2) && EQ(FirstFound->relfil, ThisLibr->relfil) ) )
+ {
+ if(numfound==1)
+ {
+ fprintf(stderr, "?ASlink-Warning-Definition of public symbol '%s'"
+ " found more than once:\n", name);
+ fprintf(stderr, " Library: '%s', Module: '%s'\n",
+ FirstFound->libspc, FirstFound->relfil);
+ }
+ fprintf(stderr, " Library: '%s', Module: '%s'\n",
+ ThisLibr->libspc, ThisLibr->relfil);
+ numfound++;
+ }
+ }
+ }
+ ThisSym=ThisSym->next; /* Next sym in library */
+ }
+ ThisLibr=ThisLibr->next; /* Next library in list */
+ }
+ return numfound;
+}
+
+pmlibraryfile buildlibraryindex_SdccLib(char * PathLib, FILE * libfp, char * DirLib, pmlibraryfile This)
+{
+ char ModName[NCPS]="";
+ char FLine[MAXLINE+1];
+ char buff[PATH_MAX];
+ int state=0;
+ long IndexOffset=0, FileOffset;
+ pmlibrarysymbol ThisSym = NULL;
+
+ while(!feof(libfp))
+ {
+ FLine[0]=0;
+ fgets(FLine, MAXLINE, libfp);
+ chop_crlf(FLine);
+
+ switch(state)
+ {
+ case 0:
+ if(EQ(FLine, "<INDEX>"))
+ {
+ /*The next line has the size of the index*/
+ FLine[0]=0;
+ fgets(FLine, MAXLINE, libfp);
+ chop_crlf(FLine);
+ IndexOffset=atol(FLine);
+ state=1;
+ }
+ break;
+ case 1:
+ if(EQ(FLine, "<MODULE>"))
+ {
+ /*The next line has the name of the module and the offset
+ of the corresponding embedded file in the library*/
+ FLine[0]=0;
+ fgets(FLine, MAXLINE, libfp);
+ chop_crlf(FLine);
+ sscanf(FLine, "%s %ld", ModName, &FileOffset);
+ state=2;
+
+ /*Create a new libraryfile object for this module*/
+ if(libr==NULL)
+ {
+ libr=This=(pmlibraryfile)new( sizeof( mlibraryfile ));
+ }
+ else
+ {
+ This->next=(pmlibraryfile)new( sizeof( mlibraryfile ));
+ This=This->next;
+ }
+ This->next = NULL;
+ This->loaded=-1;
+ This->offset=FileOffset+IndexOffset;
+ This->libspc=PathLib;
+
+ This->relfil=(char *)new(strlen(ModName)+1);
+ strcpy(This->relfil, ModName);
+
+ sprintf(buff, "%s%s%c%s", DirLib, ModName, FSEPX, LKOBJEXT);
+ This->filename=(char *)new(strlen(buff)+1);
+ strcpy(This->filename, buff);
+
+ This->symbols=ThisSym=NULL; /*Start a new linked list of symbols*/
+ }
+ else if(EQ(FLine, "</INDEX>"))
+ {
+ return This; /*Finish, get out of here*/
+ }
+ break;
+ case 2:
+ if(EQ(FLine, "</MODULE>"))
+ {
+ This->loaded=0;
+ /*Create the index for the next module*/
+ state=1;
+ }
+ else
+ {
+ /*Add the symbols*/
+ if(ThisSym==NULL) /*First symbol of the current module*/
+ {
+ ThisSym=This->symbols=(pmlibrarysymbol)new(sizeof(mlibrarysymbol));
+ }
+ else
+ {
+ ThisSym->next = (pmlibrarysymbol)new(sizeof(mlibrarysymbol));
+ ThisSym=ThisSym->next;
+ }
+ ThisSym->next=NULL;
+ ThisSym->name=(char *)new(strlen(FLine)+1);
+ strcpy(ThisSym->name, FLine);
+ }
+ break;
+
+ default:
+ return This; /*State machine should never reach this point, but just in case...*/
+ break;
+ }
+ }
+
+ return This; /*State machine should never reach this point, but just in case...*/
+}
+
+
+/* buildlibraryindex - build an in-memory cache of the symbols contained in
+ * the libraries
+ */
+int buildlibraryindex(void)
+{
+ FILE *libfp, *fp;
+ struct lbname *lbnh;
+ char relfil[NINPUT+2], str[PATH_MAX], *path;
+ char buf[NINPUT+2], c;
+ char symname[NINPUT+2];
+ pmlibraryfile This=NULL;
+ pmlibrarysymbol ThisSym;
+
+ /*
+ * Search through every library in the linked list "lbnhead".
+ */
+ for (lbnh=lbnhead; lbnh; lbnh=lbnh->next)
+ {
+ if ((libfp = fopen(lbnh->libspc, "r")) == NULL)
+ {
+ fprintf(stderr, "?ASlink-Error-Cannot open library file %s\n",
+ lbnh->libspc);
+ lkexit(1);
+ }
+ path = lbnh->path;
+
+ /*
+ * Read in a line from the library file.
+ * This is the relative file specification
+ * for a .REL file in this library.
+ */
+
+ while (fgets(relfil, NINPUT, libfp) != NULL)
+ {
+ relfil[NINPUT+1] = '\0';
+ chop_crlf(relfil);
+ if (path != NULL)
+ {
+ strcpy(str, path);
+#ifdef OTHERSYSTEM
+ if (strlen(str) && (str[strlen(str)-1] != '/') && (str[strlen(str)-1] != LKDIRSEP))
+ {
+ strcat(str, LKDIRSEPSTR);
+ }
+#endif
+ }
+ else
+ {
+ strcpy(str, "");
+ }
+
+ if(strcmp(relfil, "<SDCCLIB>")==0)
+ {
+ /*Get the built in index of this library*/
+ This=buildlibraryindex_SdccLib(lbnh->libspc, libfp, str, This);
+ break; /*get the index for next library*/
+ }
+
+ /*From here down, build the index for the original library format*/
+
+ if ((relfil[0] == '/') || (relfil[0] == LKDIRSEP))
+ {
+ strcat(str, relfil+1);
+ }
+ else
+ {
+ strcat(str, relfil);
+ }
+
+ if(strchr(relfil, FSEPX) == NULL)
+ {
+ sprintf(&str[strlen(str)], "%c%s", FSEPX, LKOBJEXT);
+ }
+
+ if ((fp = fopen(str, "r")) != NULL)
+ {
+ /* Opened OK - create a new libraryfile object for it */
+ if(libr==NULL)
+ {
+ libr=This=(pmlibraryfile)new( sizeof( mlibraryfile ));
+ }
+ else
+ {
+ This->next=(pmlibraryfile)new( sizeof( mlibraryfile ));
+ This=This->next;
+ }
+ This->next = NULL;
+ This->loaded=-1;
+ This->offset=-1; /*We have a stand alone .rel file*/
+ This->libspc = lbnh->libspc;
+
+ This->relfil=(char *)new(strlen(relfil)+1);
+ strcpy(This->relfil, relfil);
+
+ This->filename=(char *)new(strlen(str)+1);
+ strcpy(This->filename, str);
+
+ /*Start a new linked list of symbols for this module:*/
+ This->symbols = ThisSym = NULL;
+
+ /*
+ * Read in the object file. Look for lines that
+ * begin with "S" and end with "D". These are
+ * symbol table definitions. If we find one, see
+ * if it is our symbol. Make sure we only read in
+ * our object file and don't go into the next one.
+ */
+
+ while (fgets(buf, NINPUT, fp) != NULL)
+ {
+ buf[NINPUT+1] = '\0';
+ buf[strlen(buf) - 1] = '\0';
+
+ /*
+ * Skip everything that's not a symbol record.
+ */
+ if (buf[0] != 'S') continue;
+
+ /*
+ * When a 'T line' is found terminate file scan.
+ * All 'S line's preceed 'T line's in .REL files.
+ */
+ if (buf[0] == 'T') break;
+
+ sscanf(buf, "S %s %c", symname, &c);
+
+ /* If it's an actual symbol, record it */
+ if (c == 'D')
+ {
+ if(ThisSym==NULL)
+ {
+ ThisSym=This->symbols=(pmlibrarysymbol)new(sizeof(mlibrarysymbol));
+ }
+ else
+ {
+ ThisSym->next=(pmlibrarysymbol)new(sizeof(mlibrarysymbol));
+ ThisSym=ThisSym->next;
+ }
+ This->loaded=0;
+ ThisSym->next=NULL;
+ ThisSym->name=(char *)new(strlen(symname)+1);
+ strcpy(ThisSym->name, symname);
+ }
+ } /* Closes while - read object file */
+ fclose(fp);
+ } /* Closes if object file opened OK */
+ else
+ {
+ fprintf(stderr, "?ASlink-Warning-Cannot open library module %s\n", str);
+ }
+ } /* Ends while - processing all in libr */
+ fclose(libfp);
+ } /* Ends good open of libr file */
+ return 0;
+}
+
+/*Release all memory allocated for the in-memory library index*/
+void freelibraryindex (void)
+{
+ pmlibraryfile ThisLibr, ThisLibr2Free;
+ pmlibrarysymbol ThisSym, ThisSym2Free;
+
+ ThisLibr = libr;
+
+ while (ThisLibr)
+ {
+ ThisSym = ThisLibr->symbols;
+
+ while (ThisSym)
+ {
+ free(ThisSym->name);
+ ThisSym2Free=ThisSym;
+ ThisSym=ThisSym->next;
+ free(ThisSym2Free);
+ }
+ free(ThisLibr->filename);
+ free(ThisLibr->relfil);
+ ThisLibr2Free=ThisLibr;
+ ThisLibr=ThisLibr->next;
+ free(ThisLibr2Free);
+ }
+
+ libr=NULL;
+}
+
+#else /* INDEXLIB */
+
+int
+fndsym(char *name)
+{
+ FILE *libfp, *fp;
+ struct lbname *lbnh;
+ struct lbfile *lbfh, *lbf;
+ char relfil[NINPUT+2];
+ char buf[NINPUT+2];
+ char symname[NINPUT];
+ char *path,*str;
+ char c;
+ int result;
+
+ /*
+ * Search through every library in the linked list "lbnhead".
+ */
+
+ for (lbnh=lbnhead; lbnh; lbnh=lbnh->next)
+ {
+ if ((libfp = fopen(lbnh->libspc, "r")) == NULL)
+ {
+ fprintf(stderr, "?ASlink-Error-Cannot open library file %s\n",
+ lbnh->libspc);
+ lkexit(1);
+ }
+ path = lbnh->path;
+
+ /*
+ * Read in a line from the library file.
+ * This is the relative file specification
+ * for a .REL file in this library.
+ */
+
+ while (fgets(relfil, NINPUT, libfp) != NULL)
+ {
+ relfil[NINPUT+1] = '\0';
+ chop_crlf(relfil);
+ if (path != NULL)
+ {
+ str = (char *) new (strlen(path)+strlen(relfil)+6);
+ strcpy(str,path);
+#ifdef OTHERSYSTEM
+ if (strlen(str) && (str[strlen(str)-1] != '/') && (str[strlen(str)-1] != LKDIRSEP))
+ {
+ strcat(str, LKDIRSEPSTR);
+ }
+#endif
+ }
+ else
+ {
+ str = (char *) new (strlen(relfil) + 5);
+ }
+
+ /*See if this is a library with embedded files*/
+ if(strcmp(relfil, "<SDCCLIB>")==0)
+ {
+ result=SdccLib(lbnh->libspc, libfp, str, name);
+ if(result) return(1); /*Found the symbol*/
+ free(str);
+ /*The symbol is not in the current library,
+ check the next library in the list*/
+ break;
+ }
+
+ /*From here down is the support for libraries in the original format*/
+ if ((relfil[0] == '/') || (relfil[0] == LKDIRSEP))
+ {
+ strcat(str, relfil+1);
+ }
+ else
+ {
+ strcat(str, relfil);
+ }
+
+ if(strchr(relfil, FSEPX) == NULL)
+ {
+ sprintf(&str[strlen(str)], "%c%s", FSEPX, LKOBJEXT);
+ }
+
+ if ((fp = fopen(str, "r")) != NULL)
+ {
+ /*
+ * Read in the object file. Look for lines that
+ * begin with "S" and end with "D". These are
+ * symbol table definitions. If we find one, see
+ * if it is our symbol. Make sure we only read in
+ * our object file and don't go into the next one.
+ */
+
+ while (fgets(buf, NINPUT, fp) != NULL)
+ {
+ buf[NINPUT+1] = '\0';
+ chop_crlf(buf);
+ /*
+ * Skip everything that's not a symbol record.
+ */
+ if (buf[0] != 'S')
+ continue;
+
+ /*
+ * When a 'T line' is found terminate file scan.
+ * All 'S line's preceed 'T line's in .REL files.
+ */
+ if (buf[0] == 'T')
+ break;
+
+ sscanf(buf, "S %s %c", symname, &c);
+
+ /*
+ * If we find a symbol definition for the
+ * symbol we're looking for, load in the
+ * file and add it to lbfhead so it gets
+ * loaded on pass number 2.
+ */
+ if (strncmp(symname, name, NCPS) == 0 && c == 'D')
+ {
+ lbfh = (struct lbfile *) new (sizeof(struct lbfile));
+ if (lbfhead == NULL)
+ {
+ lbfhead = lbfh;
+ }
+ else
+ {
+ lbf = lbfhead;
+ while (lbf->next)
+ {
+ lbf = lbf->next;
+ }
+ lbf->next = lbfh;
+ }
+
+ lbfh->libspc = lbnh->libspc;
+ lbfh->filspc = str;
+ lbfh->relfil = (char *) new (strlen(relfil) + 1);
+ lbfh->offset = -1; /*Stand alone rel file*/
+ strcpy(lbfh->relfil,relfil);
+ fclose(fp);
+ fclose(libfp);
+
+ /* if cdb information required & adb file present */
+ if (dflag && dfp)
+ {
+ FILE *xfp = afile(str,"adb",0); //JCF: Nov 30, 2002
+ if (xfp)
+ {
+ SaveLinkedFilePath(str);
+ copyfile(dfp,xfp);
+ fclose(xfp);
+ }
+ }
+ loadfile(str);
+ return (1);
+ }
+ } /* Closes while - read object file */
+ fclose(fp);
+ } /* Closes if object file opened OK */
+ else
+ {
+ fprintf(stderr, "?ASlink-Warning-Cannot open library module %s\n", str);
+ }
+ free(str);
+ } /* Ends while - processing all in libr */
+ fclose(libfp);
+ } /* Ends good open of libr file */
+ return(0);
+}
+
+#endif /* INDEXLIB */
+
+void loadfile_SdccLib(char * libspc, char * module, long offset)
+{
+ FILE *fp;
+
+#ifdef __CYGWIN__
+ char posix_path[PATH_MAX];
+ void cygwin_conv_to_full_posix_path(char * win_path, char * posix_path);
+ cygwin_conv_to_full_posix_path(libspc, posix_path);
+ fp = fopen(posix_path, "r");
+#else
+ fp = fopen(libspc,"r");
+#endif
+
+ if (fp != NULL)
+ {
+ fseek(fp, offset, SEEK_SET);
+ LoadRel(libspc, fp, module);
+ fclose(fp);
+ }
+ else
+ {
+ fprintf(stderr, "?ASlink-Error-Opening library '%s'\n", libspc);
+ lkexit(1);
+ }
+}
+
+/*)Function VOID library()
+ *
+ * The function library() links all the library object files
+ * contained in the lbfile structures.
+ *
+ * local variables:
+ * lbfile *lbfh pointer to lbfile structure
+ *
+ * global variables:
+ * lbfile *lbfhead pointer to first lbfile structure
+ *
+ * functions called:
+ * VOID loadfile lklibr.c
+ *
+ * side effects:
+ * Links all files contained in the lbfile structures.
+ */
+
+VOID
+library(void)
+{
+ struct lbfile *lbfh;
+
+ for (lbfh=lbfhead; lbfh; lbfh=lbfh->next)
+ {
+ if(lbfh->offset<0)
+ {
+ /*Stand alone rel file (original lib format)*/
+ loadfile(lbfh->filspc);
+ }
+ else
+ {
+ /*rel file embedded in lib (new lib format)*/
+ loadfile_SdccLib(lbfh->libspc, lbfh->relfil, lbfh->offset);
+ }
+ }
+#ifdef INDEXLIB
+ freelibraryindex();
+#endif
+}
+
+/*)Function VOID loadfile(filspc)
+ *
+ * char *filspc library object file specification
+ *
+ * The function loadfile() links the library object module.
+ *
+ * local variables:
+ * FILE *fp file handle
+ * int i input line length
+ * char str[] file input line
+ *
+ * global variables:
+ * char *ip pointer to linker input string
+ *
+ * functions called:
+ * int fclose() c_library
+ * int fgets() c_library
+ * FILE * fopen() c_library
+ * VOID link_main() lkmain.c
+ * int strlen() c_library
+ *
+ * side effects:
+ * If file exists it is linked.
+ */
+
+VOID
+loadfile(char *filspc)
+{
+ FILE *fp;
+ char str[NINPUT+2];
+
+#ifdef __CYGWIN__
+ char posix_path[PATH_MAX];
+ void cygwin_conv_to_full_posix_path(char * win_path, char * posix_path);
+ cygwin_conv_to_full_posix_path(filspc, posix_path);
+ fp = fopen(posix_path, "r");
+#else
+ fp = fopen(filspc,"r");
+#endif
+
+ if (fp != NULL)
+ {
+ while (fgets(str, NINPUT, fp) != NULL)
+ {
+ str[NINPUT+1] = '\0';
+ chop_crlf(str);
+ ip = str;
+ link_main();
+ }
+ fclose(fp);
+ }
+ else
+ {
+ fprintf(stderr, "?ASlink-Error-Opening library '%s'\n", filspc);
+ lkexit(1);
+ }
+}
projects / fw / sdcc / blobdiff