+ if ((fd = open(tmpbuf, _OPEN_FLAGS)) >= 0)
+ goto ok; // Try to open file as passed first
+
+ if (!hasdot)
+ {
+ strcat(tmpbuf, ".o"); // Try to open file with '.o' added
+
+ if ((fd = open(tmpbuf, _OPEN_FLAGS)) >= 0)
+ goto ok;
+ }
+
+ // Try the libdir only if the name isn't already anchored
+ if (*name != '/' && *name != '\\' && !strchr(name, ':'))
+ {
+ strcpy(tmpbuf,libdir);
+ // Add a trailing path char if there isn't one already
+ pathadd(tmpbuf);
+ strcat(tmpbuf, name);
+
+ if ((fd = open(tmpbuf, _OPEN_FLAGS)) >= 0)
+ goto ok;
+
+ if (!hasdot)
+ {
+ strcat(tmpbuf, ".o");
+
+ if ((fd = open(tmpbuf, _OPEN_FLAGS)) >= 0)
+ goto ok;
+ }
+ }
+
+ return -1; // Couldn't open file at all
+
+// What more Atari label use - sigh!!!
+ok:
+ if ((tmpbuf = realloc(tmpbuf, (long)strlen(tmpbuf) + 1)) == NULL)
+ {
+ printf("tryopen() : out of memory\n");
+ return -1;
+ }
+
+ *p_name = tmpbuf;
+ return fd; // Return file descriptor
+}
+
+
+//
+// Archive File Use, Needs to be Removed
+//
+void put_name(struct OFILE * p)
+{
+ int flag = *(p->o_arname);
+ printf("%s%s%s", (flag ? (char *)(p->o_arname) : ""), (flag ? ":" : ""), p->o_name);
+}
+
+
+//
+// Collect file names and handles in a buffer so there is less disk activity.
+// Call dofile with flag FALSE for normal object files and archives.
+// Call it with flag TRUE and a symbol name for include files (-i).
+//
+int dofile(char * fname, int flag, char * sym)
+{
+ int fd; // File descriptor
+ int temp; // Temporary storage
+
+ // Verbose information
+ if (vflag)
+ {
+ printf("dofile() : `%s' %s", fname, flag ? "INCLUDE" : "NORMAL");
+
+ if (flag)
+ printf(" symbol %s", sym);
+
+ printf("\n");
+ }
+
+ // Reached maximum file handles
+ if (hd == NHANDLES)
+ {
+ if (flush_handles())
+ return 1;
+ }
+
+ // Attempt to open input file
+ if ((fd = tryopen(&fname)) < 0)
+ {
+ printf("Cannot find input module %s\n", fname);
+ return 1;
+ }
+
+ // The file is open; save its info in the handle and name arrays
+ handle[hd] = fd;
+ name[hd] = fname; // This is the name from tryopen()
+ hflag[hd] = flag;
+
+ // Include files
+ if (flag)
+ {
+ temp = strlen(sym); // Get symbol length
+
+ // 100 chars is max length of a symbol
+ if (temp > 99)
+ {
+ sym[99] = '\0';
+ temp = 99;
+ }
+
+ // Malloc enough space for two symbols, then build the second one. Second one may be one
+ // character longer than first
+ if ((hsym1[hd] = malloc((long)temp + 1)) == NULL
+ || (hsym2[hd] = malloc((long)temp + 2)) == NULL)
+ {
+ printf("dofile() : out of memory for include-file symbols\n");
+ return 1;
+ }
+
+ strcpy(hsym1[hd], sym);
+ strcpy(hsym2[hd], sym);
+
+ if (temp == 99)
+ {
+ if (sym[99] == 'x')
+ {
+ printf("Last char of %s is already 'x': choose another name\n", sym);
+ return 1;
+ }
+
+ hsym2[hd][99] = 'x';
+ }
+ else
+ {
+ hsym2[hd][temp] = 'x';
+ hsym2[hd][temp+1] = '\0';
+ }
+ }
+
+ hd++; // Increment next handle index
+ return 0; // No problems
+}
+
+
+//
+// Pad TEXT or DATA Segment to the Requested Boundary
+//
+int segmentpad(FILE * fd, long segsize, int value)
+{
+ long padsize; // Number of pad bytes needed
+ int i; // Good 'ol iterator
+ char padarray[32]; // Array of padding bytes
+ char * padptr; // Pointer to array
+
+ // Determine the number of padding bytes that are needed
+ padsize = (segsize + secalign) & ~secalign;
+ padsize = padsize - segsize;
+
+ // Fill pad array if padding is required
+ if (padsize)
+ {
+ padptr = padarray;
+
+ for(i=0; i<16; i++)
+ {
+ putword(padptr, value);
+ padptr += 2;
+ }
+
+ symoffset += padsize;
+
+ if (fwrite(padarray, padsize, 1, fd) != 1) // Write padding bytes
+ return 1;
+ }
+
+ return 0; // All done
+}
+
+
+//
+// Write the Output File
+//
+int write_ofile(struct OHEADER * header)
+{
+ FILE * fd; // File descriptor
+ unsigned osize; // Object segment size
+ struct OFILE * otemp; // Object file pointer
+ int i, j; // Iterators
+ char himage[0x168]; // Header image (COF = 0xA8)
+ unsigned tsoff, dsoff, bsoff; // Segment offset values
+ unsigned index, type, value; // Symbol table index, type and value
+ short abstype; // ABS symbol type
+ char symbol[14]; // Symbol record for ABS files
+ int slen; // Symbol string length
+
+ symoffset = 0; // Initialise symbol offset
+
+ // Add correct output extension if none
+ if (strchr(ofile, '.') == NULL)
+ {
+ if (aflag && cflag)
+ strcat(ofile, ".cof"); // COF files
+ else if (aflag && !cflag)
+ strcat(ofile, ".abs"); // ABS files
+ else
+ strcat(ofile, ".o"); // Object files (partial linking etc)
+ }
+
+ fd = fopen(ofile, "wb"); // Attempt to open output file
+
+ if (!fd)
+ {
+ printf("Can't open output file %s\n", ofile); // Error opening output file
+ return 1;
+ }
+
+ // Build the output file header
+ // Absolute (COF) header
+ if (cflag)
+ {
+ tsoff = dsoff = bsoff = 0xA8; // Initialises segment offsets
+
+ // Process each object file segment size to obtain a cumulative segment size for both
+ // the TEXT and DATA segments
+ for(i=0; i<(int)obj_index; i++)
+ {
+ dsoff += obj_segsize[i][0]; // Adding TEXT segment sizes
+ bsoff += obj_segsize[i][0] + obj_segsize[i][1]; // Adding TEXT and DATA segment sizes
+ }
+
+ // Currently this only builds a COF absolute file. Conditionals and additional code will
+ // need to be added for ABS and partial linking.
+
+ // Build the COF_HDR
+ putword(himage + 0, 0x0150 ); // Magic Number (0x0150)
+ putword(himage + 2, 0x0003 ); // Sections Number (3)
+ putlong(himage + 4, 0x00000000 ); // Date (0L)
+ putlong(himage + 8, dsoff + header->dsize); // Offset to Symbols Section
+ putlong(himage + 12, ost_index); // Number of Symbols
+ putword(himage + 16, 0x001C ); // Size of RUN_HDR (0x1C)
+ putword(himage + 18, 0x0003 ); // Executable Flags (3)
+
+ // Build the RUN_HDR
+ putlong(himage + 20, 0x00000107 ); // Magic/vstamp
+ putlong(himage + 24, header->tsize ); // TEXT size in bytes
+ putlong(himage + 28, header->dsize ); // DATA size in bytes
+ putlong(himage + 32, header->bsize ); // BSS size in bytes
+ putlong(himage + 36, tbase ); // Start of executable, normally @TEXT
+ putlong(himage + 40, tbase ); // @TEXT
+ putlong(himage + 44, dbase ); // @DATA
+
+ // Build the TEXT SEC_HDR
+ putlong(himage + 48, 0x2E746578 );
+ putlong(himage + 52, 0x74000000 ); // ".text"
+ putlong(himage + 56, tbase ); // TEXT START
+ putlong(himage + 60, tbase ); // TEXT START
+ putlong(himage + 64, header->tsize ); // TEXT size in bytes
+ putlong(himage + 68, tsoff ); // Offset to section data in file
+ putlong(himage + 72, 0x00000000 ); // Offset to section reloc in file (0L)
+ putlong(himage + 76, 0x00000000 ); // Offset to debug lines structures (0L)
+ putlong(himage + 80, 0x00000000 ); // Nreloc/nlnno (0L)
+ putlong(himage + 84, 0x00000020 ); // SEC_FLAGS: STYP_TEXT
+
+ // Build the DATA SEC_HDR
+ putlong(himage + 88, 0x2E646174 );
+ putlong(himage + 92, 0x61000000 ); // ".data"
+ putlong(himage + 96, dbase ); // DATA START
+ putlong(himage + 100, dbase ); // DATA START
+ putlong(himage + 104, header->dsize ); // DATA size in bytes
+ putlong(himage + 108, dsoff ); // Offset to section data in file
+ putlong(himage + 112, 0x00000000 ); // Offset to section reloc in file (0L)
+ putlong(himage + 116, 0x00000000 ); // Offset to debugging lines structures (0L)
+ putlong(himage + 120, 0x00000000 ); // Nreloc/nlnno (0L)
+ putlong(himage + 124, 0x00000040 ); // SEC_FLAGS: STYP_DATA
+
+ // Build the BSS SEC_HDR
+ putlong(himage + 128, 0x2E627373 );
+ putlong(himage + 132, 0x00000000 ); // ".bss"
+ putlong(himage + 136, bbase ); // BSS START
+ putlong(himage + 140, bbase ); // BSS START
+ putlong(himage + 144, header->bsize ); // BSS size in bytes
+ putlong(himage + 148, bsoff ); // Offset to section data in file
+ putlong(himage + 152, 0x00000000 ); // Offset to section reloc in file (0L)
+ putlong(himage + 156, 0x00000000 ); // Offset to debugging lines structures (0L)
+ putlong(himage + 160, 0x00000000 ); // Nreloc/nlnno (0L)
+ putlong(himage + 164, 0x00000080 ); // SEC_FLAGS: STYP_BSS
+
+ symoffset = 168; // Update symbol offset
+ }
+ // Absolute (ABS) header
+ else
+ {
+ // Build the ABS header
+ putword(himage + 0, 0x601B ); // Magic Number (0x601B)
+ putlong(himage + 2, header->tsize ); // TEXT segment size
+ putlong(himage + 6, header->dsize ); // DATA segment size
+ putlong(himage + 10, header->bsize ); // BSS segment size
+ putlong(himage + 14, ost_index * 14 ); // Symbol table size (?)
+ putlong(himage + 18, 0x00000000 ); //
+ putlong(himage + 22, tbase ); // TEXT base address
+ putword(himage + 26, 0xFFFF ); // Flags (?)
+ putlong(himage + 28, dbase ); // DATA base address
+ putlong(himage + 32, bbase ); // BSS base address
+
+ symoffset = 36; // Update symbol offset
+ }
+
+ // Write the header, but not if noheaderflag
+ // Absolute (ABS) header
+ if (!cflag)
+ {
+ if (!noheaderflag)
+ if (fwrite(himage, 36, 1, fd) != 1)
+ goto werror;
+ }
+ // Absolute (COF) header
+ else
+ {
+ if (fwrite(himage, 168, 1, fd) != 1)
+ goto werror;
+ }
+
+ // Write the TEXT segment of each object file
+ for(otemp=olist; otemp!=NULL; otemp=otemp->o_next)
+ {
+ osize = otemp->o_header.tsize;
+
+ // Write only if segment has size
+ if (osize)
+ {
+ if (vflag > 1)
+ printf("Writing TEXT Segment of %s\n", otemp->o_name);
+
+ if (fwrite(otemp->o_image + 32, osize, 1, fd) != 1)
+ goto werror;
+
+ // Pad to required alignment boundary
+ if (segmentpad(fd, osize, 0x0000))
+ goto werror;
+
+ symoffset += osize;
+ }
+ }
+
+ // Write the DATA segment of each object file
+ for(otemp = olist; otemp != NULL; otemp = otemp->o_next)
+ {
+ osize = otemp->o_header.dsize;
+
+ // Write only if the segment has size
+ if (osize)
+ {
+ if (vflag > 1)
+ printf("Writing DATA Segment of %s\n", otemp->o_name);
+
+ if (fwrite((otemp->o_image + 32 + otemp->o_header.tsize), osize, 1, fd) != 1)
+ goto werror;
+
+ // Pad to required alignment boundary
+ if (segmentpad(fd, osize, 0))
+ goto werror;
+
+ symoffset += osize;
+ }
+ }
+
+ if (!noheaderflag)
+ {
+ // Write the symbols table and string table
+ // Absolute (COF) symbol/string table
+ if (cflag)
+ {
+ if (header->ssize)
+ {
+ if (fwrite(ost, (ost_ptr - ost), 1, fd) != 1) goto werror;
+ if (fwrite(oststr, (oststr_ptr - oststr), 1, fd) != 1) goto werror;
+ }
+ }
+ // Absolute (ABS) symbol/string table
+ else
+ {
+ // The symbol and string table have been created as part of the
+ // dosym() function and the output symbol and string tables are in
+ // COF format. For an ABS file we need to process through this to
+ // create the 14 character long combined symbol and string table.
+ // Format of symbol table in ABS: AAAAAAAATTVVVV, where (A)=STRING,
+ // (T)=TYPE & (V)=VALUE
+
+ for(i=0; i<ost_index; i++)
+ {
+ memset(symbol, 0, 14); // Initialise symbol record
+ abstype = 0; // Initialise ABS symbol type
+ slen = 0; // Initialise symbol string length
+ index = getlong(ost + (i * 12)); // Get symbol index
+ type = getlong((ost + (i * 12)) + 4); // Get symbol type
+
+ if (type & 0xF0000000)
+ continue; // Not doing debug symbols
+
+ value = getlong((ost + (i * 12)) + 8); // Get symbol value
+ slen = strlen(oststr + index);
+
+ // Get symbol string (maximum 8 chars)
+ if (slen > 8)
+ {
+ for(j=0; j<8; j++)
+ *(symbol + j) = *(oststr + index + j);
+ }
+ else
+ {
+ for(j=0; j<slen; j++)
+ *(symbol + j) = *(oststr + index + j);
+ }
+
+ // Modify to ABS symbol type
+ switch (type)
+ {
+ case 0x02000000: abstype = (short)ABST_DEFINED; break;
+ case 0x04000000: abstype = (short)ABST_DEFINED | ABST_TEXT; break;
+ case 0x05000000: abstype = (short)ABST_DEFINED | ABST_GLOBAL | ABST_TEXT; break;
+ case 0x06000000: abstype = (short)ABST_DEFINED | ABST_DATA; break;
+ case 0x07000000: abstype = (short)ABST_DEFINED | ABST_GLOBAL | ABST_DATA; break;
+ case 0x08000000: abstype = (short)ABST_DEFINED | ABST_BSS; break;
+ case 0x09000000: abstype = (short)ABST_DEFINED | ABST_GLOBAL | ABST_BSS; break;
+ default:
+ printf("write_ofile: abs, cannot determine symbol type\n");
+ type = 0;
+ break;
+ }
+
+ putword(symbol + 8, abstype); // Write back new ABS type
+ putlong(symbol + 10, value); // Write back value
+
+ if (fwrite(symbol, 14, 1, fd) != 1) goto werror; // Write symbol record
+ }
+ }
+ }
+
+ // Close the file
+ if (fclose(fd))
+ {
+ printf("Close error on output file %s\n",ofile);
+ return 1;
+ }
+
+ return 0;
+
+werror: // OMG! Why did Atari use these :)
+ printf("Write error on output file %s\n", ofile);
+ fclose(fd); // Try to close output file anyway
+ return 1;
+}
+
+
+//
+// Display the Symbol Load Map
+//
+int write_map(struct OHEADER * header)
+{
+ unsigned i, o; // Inner and outer loop iterators
+ unsigned c; // Column number
+ unsigned index; // Symbol string index
+ unsigned type; // Symbol type
+ unsigned value; // Symbol value
+ char * symbol; // Symbol string value
+
+ if (ost_index == 0)
+ return 0; // Return if no symbols to map
+
+ printf("LOAD MAP\n\n");
+
+ // Outer loop for each of the symbol areas to map out;
+ // 0 = NON-RELOCATABLE SYMBOLS
+ // 1 = TEXT-SEGMENT RELOCATABLE SYMBOLS
+ // 2 = DATA-SEGMENT RELOCATABLE SYMBOLS
+ // 3 = BSS-SEGMENT RELOCATABLE SYMBOLS
+ for(o=0; o<4; o++)
+ {
+ // Display the correct map header for the symbols being processed
+ switch (o)
+ {
+ case 0: printf("NON-RELOCATABLE SYMBOLS\n\n"); break;
+ case 1: printf("TEXT-SEGMENT RELOCATABLE SYMBOLS\n\n"); break;
+ case 2: printf("DATA-SEGMENT RELOCATABLE SYMBOLS\n\n"); break;
+ case 3: printf("BSS-SEGMENT RELOCATABLE SYMBOLS\n\n"); break;
+ }
+
+ c = 0; // Initialise column number
+
+ // Inner loop to process each record in the symbol table
+ for(i=0; i<(unsigned)ost_index; i++)
+ {
+ index = getlong(ost + (i * 12)); // Get symbol string index
+ type = getlong(ost + (i * 12) + 4); // Get symbol type
+ value = getlong(ost + (i * 12) + 8); // Get symbol value
+ symbol = oststr + index; // Get symbol string
+
+ // Display only three columns
+ if (c == 3)
+ {
+ printf("\n");
+ c = 0;
+ }
+
+ // If local symbols not included and the type is local then go to next symbol record
+ if (!lflag & !(type & 0x01000000))
+ continue;
+
+ // Output each symbol to the display, dependant on type
+ switch (o)
+ {
+ case 0: // Non-relocatable symbols
+ if (type == 0x02000000 || type == 0x03000000)
+ {
+ printf("%-8s %c %08X ", symbol, (type & 0x01000000) ? 'G' : 'L', value);
+ c++;
+ }
+
+ break;
+ case 1: // TEXT segment relocatable symbols
+ if (type == 0x04000000 || type == 0x05000000)
+ {
+ printf("%-8s %c %08X ", symbol, (type & 0x01000000) ? 'G' : 'L', value);
+ c++;
+ }
+
+ break;
+ case 2: // DATA segment relocatble symbols
+ if (type == 0x06000000 || type == 0x07000000)
+ {
+ printf("%-8s %c %08X ", symbol, (type & 0x01000000) ? 'G' : 'L', value);
+ c++;
+ }
+
+ break;
+ case 3: // BSS segment relocatable symbols
+ if (type == 0x08000000 || type == 0x09000000)
+ {
+ printf("%-8s %c %08X ", symbol, (type & 0x01000000) ? 'G' : 'L', value);
+ c++;
+ }
+
+ break;
+ }
+ }
+
+ printf("\n\n");
+ }
+
+ return 0; // All done
+}
+
+
+//
+// Convert ASCII to Hexadecimal
+//
+//int atolx(char * string, long * value)
+int atolx(char * string, int * value)
+{
+ *value = 0;
+
+ while (isxdigit(*string))
+ {
+ if (isdigit(*string))
+ {
+ *value = (*value << 4) + (*string++ - '0');
+ }
+ else
+ {
+ if (isupper(*string))
+ *string = tolower(*string);
+
+ *value = (*value << 4) + ((*string++ - 'a') + 10);
+ }
+ }
+
+ if (*string != '\0')
+ {
+ printf("Invalid hexadecimal value");
+ return 1;
+ }
+
+ return 0;
+}
+
+
+//
+// Stuff the (long) value of a string into the value argument. RETURNS TRUE if
+// the string doesn't parse. Parses only as a hex string.
+//
+//int getval(char * string, long * value)
+int getval(char * string, int * value)
+{
+ return atolx(string, value);
+}
+
+
+//
+// Create one big .o file from the images already in memory, returning a
+// pointer to an OHEADER. Note that the oheader is just the header for the
+// output (plus some other information). The text, data, and fixups are all
+// still in the ofile images hanging off the global `olist'.
+//
+struct OHEADER * make_ofile()
+{
+ unsigned tptr, dptr, bptr; // Bases in runtime model
+ int ret = 0; // Return value
+ struct OFILE * otemp, * oprev, * ohold; // Object file list pointers
+ struct OHEADER * header; // Output header pointer
+
+ textsize = datasize = bsssize = 0; // Initialise cumulative segment sizes
+
+ // For each object file, accumulate the sizes of the segments but remove
+ // those object files which are unused
+ oprev = NULL; // Init previous obj file list ptr
+ otemp = olist; // Set temp pointer to object file list
+
+ while (otemp != NULL)
+ {
+ // UNUSED !!!!!
+ if (!(otemp->o_flags & O_ARCHIVE))
+ {
+ if ((otemp->o_flags & O_USED) == 0)
+ {
+ if (wflag)
+ {
+ printf("Unused object file ");
+ put_name(otemp);
+ printf(" discarded.\n");
+ }
+
+ if (oprev == NULL)
+ {
+ olist = otemp->o_next;
+ }
+ else
+ {
+ oprev -> o_next = otemp->o_next;
+ }
+
+ ohold = otemp;
+ free(ohold->o_image);
+ free(ohold);
+ }
+ else
+ {
+ // Increment total of segment sizes ensuring requested alignment
+ textsize += (otemp->o_header.tsize + secalign) & ~secalign;
+ datasize += (otemp->o_header.dsize + secalign) & ~secalign;
+ bsssize += (otemp->o_header.bsize + secalign) & ~secalign;
+ oprev = otemp;
+ }
+ }
+
+ otemp = otemp->o_next; // Go to next object file list pointer
+ }
+
+ // Update base addresses and create symbols _TEXT_E, _DATA_E and _BSS_E
+ tbase = tval;
+ ost_add("_TEXT_E", 0x05000000, tval + textsize);
+
+ if (!dval)
+ {
+ // DATA follows TEXT
+ dbase = tval + textsize;
+ ost_add("_DATA_E", 0x07000000, tval + textsize + datasize);
+
+ if (!bval)
+ {
+ // BSS follows DATA
+ bbase = tval + textsize + datasize;
+ ost_add("_BSS_E", 0x09000000, tval + textsize + datasize + bsssize);
+ }
+ else
+ {
+ // BSS is independant of DATA
+ bbase = bval;
+ ost_add("_BSS_E", 0x09000000, bval + bsssize);
+ }
+ }
+ else
+ {
+ // DATA is independant of TEXT
+ dbase = dval;
+ ost_add("_DATA_E", 0x07000000, dval + datasize);
+
+ if (!bval)
+ {
+ // BSS follows DATA
+ bbase = dval + datasize;
+ ost_add("_BSS_E", 0x09000000, dval + datasize + bsssize);
+ }
+ else
+ {
+ // BSS is independant of DATA
+ bbase = bval;
+ ost_add("_BSS_E", 0x09000000, bval + bsssize);
+ }
+ }
+
+ // Place each unresolved symbol in the output symbol table
+ if (dounresolved())
+ return NULL;
+
+ tptr = 0; // Initialise base addresses
+ dptr = 0;
+ bptr = 0;
+
+ // For each file, relocate its symbols and add them to the output symbol table
+ otemp = olist;
+ oprev = NULL;
+
+ while (otemp != NULL)
+ {
+ otemp->o_tbase = tptr;
+
+ // Do rest only for non-ARCHIVE markers
+ if (!(otemp->o_flags & O_ARCHIVE))
+ {
+ otemp->o_dbase = dptr;
+ otemp->o_bbase = bptr;
+ tptr += (otemp->o_header.tsize + secalign) & ~secalign;
+ dptr += (otemp->o_header.dsize + secalign) & ~secalign;
+ bptr += (otemp->o_header.bsize + secalign) & ~secalign;
+ }
+
+ // For each symbol, (conditionally) add it to the ost
+ // For ARCHIVE markers, this adds the symbol for the file & returns
+ if (dosym(otemp))
+ return NULL;
+
+ if (otemp->o_flags & O_ARCHIVE)
+ {
+ // Now that the archive is marked, remove it from list
+ if (oprev == NULL)
+ olist = otemp->o_next;
+ else
+ oprev->o_next = otemp->o_next;
+
+ ohold = otemp;
+
+ if (ohold->o_image) free(ohold->o_image);
+ free(ohold);
+ }
+ else
+ {
+ oprev = otemp;
+ }
+
+ otemp = otemp->o_next;
+ }
+
+ // Places all the externs, globals etc into the output symbol table
+ if (docommon() == -1)
+ return NULL;
+
+ // Create a new output file header
+ if ((header = new_oheader()) == NULL)
+ {
+ printf("make_ofile: out of memory!\n");
+ return NULL;
+ }
+
+ // Fill in the output header. Does not match the actual output but values
+ // used as reference
+ header->magic = 0x0150; // COF magic number
+ header->tsize = textsize; // TEXT segment size
+ header->dsize = datasize; // DATA segment size
+ header->bsize = bsssize; // BSS segment size
+ header->ssize = (ost_ptr - ost); // Symbol table size
+ header->ostbase = ost; // Output symbol table base address
+
+ // For each object file, relocate its TEXT and DATA segments. OR the result
+ // into ret so all files get moved (and errors reported) before returning
+ // with the error condition
+ for(otemp=olist; otemp!=NULL; otemp=otemp->o_next)
+ {
+ if (!(otemp->o_flags & O_ARCHIVE))
+ {
+ ret |= reloc_segment(otemp, T_TEXT); // TEXT segment relocations
+ ret |= reloc_segment(otemp, T_DATA); // DATA segment relocations
+ }
+ }
+
+ hash_free(); // Done with global symbol hash tables
+
+ return (ret ? (unsigned)NULL : header);
+}
+
+
+//
+// Add Symbol to Hash List
+//
+int add_to_hlist(struct HREC ** hptr, char * sym, struct OFILE * ofile, long value, int type)
+{
+ struct HREC * htemp; // Temporary hash record pointer
+ int i;
+
+ // Attempt to allocate new hash record
+ if ((htemp = new_hrec()) == NULL)
+ {
+ printf("Out of memory\n");
+ return 1;
+ }
+
+ // Shamus: Moar testing...
+ if (vflag > 1)
+ {
+ printf("add_to_hlist(): hptr=$%08X, sym=\"%s\", ofile=$%08X, value=$%X, type=$%X\n", (unsigned int)hptr, sym, (unsigned int)ofile, value, type);
+ }
+
+ for(i=0; i<SYMLEN; i++)
+ htemp->h_sym[i] = '\0';
+
+ strcpy(htemp->h_sym, sym); // Populate hash record
+ htemp->h_ofile = ofile;
+ htemp->h_value = value;
+ htemp->h_type = type;
+
+ htemp->h_next = *hptr; // Update hash record pointers
+ *hptr = htemp;
+
+ return 0;
+}
+
+
+//
+// Add Symbol to the Unresolved Symbols Hash Table
+//
+add_unresolved(char * sym, struct OFILE * ofile)
+{
+ if (vflag > 1)
+ printf("add_unresolved(%s,%s)\n", sym, ofile->o_name);
+
+ return add_to_hlist(&unresolved, sym, ofile, 0L, 0);
+}
+
+
+//
+// Generate and Return Hash Value
+//
+int dohash(char * s)
+{
+ int i = (s[0]+s[1]+s[2]+s[3]+s[4]+s[5]+s[6]+s[7] +s[8]+s[9]+s[10]+s[11]+s[12]+s[13]+s[14]) % NBUCKETS;
+ return i;
+}
+
+
+//
+// Lookup a Symbol in the Hash Table
+//
+struct HREC * lookup(char * sym)
+{
+ struct HREC * hptr = htable[dohash(sym)]; // Hash index to record based on sym
+ char symbol[SYMLEN]; // Temporary symbol storage
+
+ memset(symbol, 0, SYMLEN); // Clean string for comparison
+ strcpy(symbol, sym);
+
+ while (hptr != NULL)
+ {
+//This is utter failure...
+// if (symcmp(symbol, hptr->h_sym)) <-- left here for giggles :D - LinkoVitch
+ if (strcmp(symbol, hptr->h_sym) == 0)
+ return hptr;
+
+ hptr = hptr->h_next; // Return hash pointer if found
+ }
+
+ return NULL; // Not found in hash table
+}
+
+
+//
+// Add Symbol to the Hash Table
+//
+int hash_add(char * sym, long type, long value, struct OFILE * ofile)
+{
+ struct HREC * hptr;
+ int flag = !iscommon(type);
+
+ if (vflag > 1)
+ {
+ printf("hash_add(%s,%s,%lx,", sym, ofile->o_name, value);
+ printf("%x,%s)\n", (unsigned int)type, (flag ? "GLOBAL" : "COMMON"));
+ }
+
+ if ((hptr = lookup(sym)) == NULL)
+ {
+ return add_to_hlist(&htable[dohash(sym)], sym, ofile, value, type);
+ }
+
+ // Already there!
+ if (iscommon(type) && !iscommon(hptr->h_type))
+ {
+ // Mismatch: global came first; warn and keep the global one
+ if (wflag)
+ {
+ printf("Warning: %s: global from ", sym);
+ put_name(hptr->h_ofile);
+ printf(" used, common from ");
+ put_name(ofile);
+ printf(" discarded.\n");
+ }
+
+ putword(sym + 8, ABST_EXTERN);
+ putlong(sym + 10, 0L);
+ }
+ else if (iscommon(hptr->h_type) && !iscommon(type))
+ {
+ // Mismatch: common came first; warn and keep the global one
+ if (wflag)
+ {
+ printf("Warning: %s: global from ", sym);
+ put_name(ofile);
+ printf(" used, common from ");
+ put_name(hptr->h_ofile);
+ printf(" discarded.\n");
+ }
+
+ hptr->h_type = type;
+ hptr->h_ofile = ofile;
+ hptr->h_value = value;
+ }
+ // They're both global
+ else if (flag)
+ {
+ // Global exported by another ofile; warn and make this one extern
+ if (wflag)
+ {
+ printf("Duplicate symbol %s: ", sym);
+ put_name(hptr->h_ofile);
+ printf(" used, ");
+ put_name(ofile);
+ printf(" discarded\n");
+ }
+
+ putword(sym + 8, ABST_EXTERN);
+ }
+ // They're both common
+ else
+ {
+ if (hptr->h_value < value)
+ {
+ hptr->h_value = value;
+ hptr->h_ofile = ofile;
+ }
+ }
+
+ return 0;
+}
+
+
+//
+// Add the imported symbols from this file to unresolved, and the global and
+// common symbols to the exported hash table.
+//
+// Change old-style commons (type == T_EXTERN, value != 0) to new-style ones
+// (type == (T_GLOBAL | T_EXTERN)).
+//
+int add_symbols(struct OFILE * Ofile)
+{
+ long nsymbols; // Number of symbols in object file
+ char * ptr; // Object data base pointer
+ char * sfix; // Symbol fixup table pointer
+ char * sstr; // Symbol string table pointer
+ long index; // String index
+ long type; // Symbol type
+ long value; // Symbol value
+ struct HREC * hptr; // Hash record pointer
+ char symbol[SYMLEN];
+
+ if (vflag > 1)
+ printf("Add symbols for file %s\n", Ofile->o_name);
+
+ ptr = Ofile->o_image + 32 // Get base pointer, start of sym fixups
+ + Ofile->o_header.tsize
+ + Ofile->o_header.dsize
+ + Ofile->o_header.absrel.reloc.tsize
+ + Ofile->o_header.absrel.reloc.dsize;
+ sfix = ptr; // Set symbol fixup pointer
+ sstr = sfix + Ofile->o_header.ssize; // Set symbol table pointer
+ nsymbols = Ofile->o_header.ssize / 12; // Obtain number of symbols
+
+ while (nsymbols)
+ {
+ index = getlong(sfix); // Get symbol string index
+ type = getlong(sfix + 4); // Get symbol type
+ value = getlong(sfix + 8); // Get symbol value
+ memset(symbol, 0, SYMLEN);
+ strcpy(symbol, sstr + index);
+
+ // If this is a global/external
+ if (type & T_EXT)
+ {
+ if ((type - T_EXT))
+ {
+ // Then add to hash table
+ if (hash_add(symbol, type, value, Ofile))
+ {
+ return 1; // Error if addition failed
+ }
+ }
+ else
+ {
+ // If value is zero and in hash table
+ if ((hptr = lookup(symbol)) != NULL)
+ {
+ hptr->h_ofile->o_flags |= O_USED; // Mark symbol as used
+ }
+ // Otherwise add to unresolved list
+ else if (add_unresolved(symbol, Ofile))
+ {
+ return 1; // Error if addition failed
+ }
+ }
+ }
+
+ sfix += 12; // Increment symbol fixup pointer
+ nsymbols--; // Decrement num of symbols to process
+ }
+
+ return 0; // Success loading symbols
+}
+
+
+//
+// Process Object File for Symbols
+//
+int doobj(char * fname, char * ptr, char * aname, int flags)
+{
+ struct OFILE * Ofile; // Object record pointer
+ char * temp; // Temporary data pointer
+
+ // Allocate memory for object record ptr
+ if ((Ofile = new_ofile()) == NULL)
+ {
+ printf("Out of memory processing %s\n",fname);
+ return 1;
+ }
+
+ // Starting after all pathnames, etc., copy .o file name to Ofile
+ temp = path_tail(fname);
+
+ // Check filename length
+ if (strlen(temp) > FNLEN - 1)
+ {
+ printf("File name too long: %s\n", temp);
+ return 1;
+ }
+
+ // Check archive name length
+ if (strlen(aname) > FNLEN - 1)
+ {
+ printf("Archive name too long: %s\n", aname);
+ return 1;
+ }
+
+ strcpy(Ofile->o_name, temp); // Store filename
+ strcpy(Ofile->o_arname, aname); // Store archive name
+
+ Ofile->o_next = NULL; // Initialise object record information
+ Ofile->o_tbase = 0;
+ Ofile->o_dbase = 0;
+ Ofile->o_bbase = 0;
+ Ofile->o_flags = flags;
+ Ofile->o_image = ptr;
+
+ // Don't do anything if this is just an ARCHIVE marker, just add the file to the olist
+ if (!(flags & O_ARCHIVE))
+ {
+ Ofile->o_header.magic = getlong(ptr);
+ Ofile->o_header.tsize = getlong(ptr+4);
+ Ofile->o_header.dsize = getlong(ptr+8);
+ Ofile->o_header.bsize = getlong(ptr+12);
+ Ofile->o_header.ssize = getlong(ptr+16);
+ Ofile->o_header.absrel.reloc.tsize = getlong(ptr+24);
+ Ofile->o_header.absrel.reloc.dsize = getlong(ptr+28);
+
+ // Round BSS off to alignment boundary
+ Ofile->o_header.bsize = (Ofile->o_header.bsize + secalign) & ~secalign;
+
+ if (Ofile->o_header.dsize & 7)
+ {
+ printf("Warning: data segment size of ");
+ put_name(Ofile);
+ printf(" is not a phrase multiple\n");
+ }
+
+ // Check for odd segment sizes
+ if ((Ofile->o_header.tsize & 1) || (Ofile->o_header.dsize & 1)
+ || (Ofile->o_header.bsize & 1))
+ {
+ printf("Error: odd-sized segment in ");
+ put_name(Ofile);
+ printf("; link aborted.\n");
+ return 1;
+ }
+
+ if (add_symbols(Ofile))
+ return 1;
+ }
+
+ // Add this file to the olist
+ if (olist == NULL)
+ olist = Ofile;
+ else
+ olast->o_next = Ofile;
+
+ olast = Ofile;
+ return 0;
+}
+
+
+//
+// Remove Elements from Unresolved List which are Resolvable
+//
+int dolist(void)
+{
+ struct HREC * uptr; // Unresolved hash record pointer
+ struct HREC * prev = NULL; // Previous hash record pointer
+ struct HREC * htemp; // Temporary hash record pointer
+ struct OFILE * ptemp; // Temporary object file record pointer
+
+ // Process object file list
+ while (plist != NULL)
+ {
+ if (doobj(plist->o_name, plist->o_image, plist->o_arname, plist->o_flags))
+ return 1;
+
+ ptemp = plist;
+ plist = plist->o_next;
+ free(ptemp);
+ }
+
+ // Process unresolved list
+ for(uptr=unresolved; uptr!=NULL; )
+ {
+ if (vflag > 1)
+ printf("lookup(%s) => ",uptr->h_sym);
+
+ if ((htemp = lookup(uptr->h_sym)) != NULL)
+ {
+ if (vflag > 1)
+ printf(" %s in %s\n", isglobal(htemp->h_type) ? "global" : "common", htemp->h_ofile->o_name);
+
+ htemp->h_ofile->o_flags |= O_USED;
+
+ if (prev == NULL)
+ {
+ unresolved = uptr->h_next;
+ free(uptr);
+ uptr = unresolved;
+ }
+ else
+ {
+ prev->h_next = uptr->h_next;
+ free(uptr);
+ uptr = prev->h_next;
+ }
+ }
+ else
+ {
+ printf("NULL\n");
+ prev = uptr;
+ uptr = uptr->h_next;
+ }
+ }
+
+ return 0;
+}
+
+
+//
+// Extract Filename from Path
+//
+char * path_tail(char * name)
+{
+// char * temp = MAX(strrchr(name, '/'), MAX(strrchr(name, ':'), strrchr(name, '\\')));
+ char * temp = strrchr(name, PATH_DELIMITER);
+
+ // Return what was passed in if path delimiter was not found
+ if (temp == NULL)
+ return name;
+
+ return temp + 1;
+}
+
+
+//
+// Add Input File to Processing List
+//
+int pladd(char * ptr, char * fname)
+{
+ if (plist == NULL)
+ {
+ plist = new_ofile(); // First time object record allocation
+ plast = plist; // Update last object record pointer
+ }
+ else
+ {
+ plast->o_next = new_ofile(); // Next object record allocation
+ plast = plast->o_next; // Update last object record pointer
+ }
+
+ if (plast == NULL)
+ {
+ printf("Out of memory.\n"); // Error if memory allocation fails
+ return 1;
+ }
+
+ if (strlen(path_tail(fname)) > FNLEN - 1)
+ { // Error on excessive filename length
+ printf("File name too long: %s (sorry!)\n",fname);
+ return 1;
+ }
+
+ strcpy(plast->o_name, path_tail(fname)); // Store filename, not path
+ *plast->o_arname = 0; // No archive name for this file
+ plast->o_image = ptr; // Store data pointer
+ plast->o_flags = O_USED; // File is used
+ plast->o_next = NULL; // Initialise next record pointer
+
+ return 0; // Return without errors
+}
+
+
+//
+// Process in Binary Include Files and Add them to the Processing List. This
+// routine takes in the binary file and creates an 'object' file in memory.
+// Sym1/Sym2 point to the start and end of data.
+//
+// Image size for include files is:
+// Header ....... 32 bytes
+// Data ......... dsize
+// Sym Fixups ... 2 * 12 bytes
+// Symbol Size .. 4 bytes (Value to include symbols and terminating null)
+// Symbols ...... (strlen(sym1) + 1) + (strlen(sym2) + 1)
+// Terminate .... 4 bytes (0x00000000)
+//
+int doinclude(char * fname, int handle, char * sym1, char * sym2, int segment)
+{
+ long fsize, dsize, size; // File, DATA segment and image sizes
+ char * ptr, * sptr; // Data pointers
+ int i; // Iterators
+ int sym1len = 0; // Symbol 1 length
+ int sym2len = 0; // Symbol 2 length
+ unsigned symtype = 0;
+
+ fsize = FSIZE(handle); // Get size of include file
+ dsize = (fsize + secalign) & ~secalign; // Round up to a alignment boundary
+
+ sym1len = strlen(sym1) + 1; // Get sym1 length + null termination
+ sym2len = strlen(sym2) + 1; // Get sym2 length + null termination
+
+ size = 32 + dsize + 24 + 4 + sym1len + sym2len + 4;
+
+ // Use calloc so the header & fixups initialize to zero
+ // Allocate object image memory
+ if ((ptr = calloc(size, 1L)) == NULL)
+ {
+ printf("Out of memory while including %s\n", fname);
+ close(handle);
+ return 1;
+ }
+
+ // Read in binary data
+ if (read(handle, ptr + 32, fsize) != fsize)
+ {
+ printf("File read error on %s\n", fname);
+ close(handle);
+ free(ptr);
+ return 1;
+ }
+
+ close(handle); // Close file
+
+ strcpy(obj_fname[obj_index], path_tail(fname));
+
+ // Build this image's dummy header
+ putlong(ptr, 0x00000107); // Magic number
+
+ if (segment)
+ {
+ putlong(ptr+4, dsize); // Text size
+ putlong(ptr+8, 0L); // Data size
+ symtype = 0x05000000;
+ obj_segsize[obj_index][0] = dsize;
+ obj_segsize[obj_index][1] = 0;
+ obj_segsize[obj_index][2] = 0;
+ }
+ else
+ {
+ putlong(ptr+4, 0L); // Text size
+ putlong(ptr+8, dsize); // Data size
+ symtype = 0x07000000;
+ obj_segsize[obj_index][0] = 0;
+ obj_segsize[obj_index][1] = dsize;
+ obj_segsize[obj_index][2] = 0;
+ }
+
+ obj_index++; // Increment object count
+
+ putlong(ptr+12, 0L); // BSS size
+ putlong(ptr+16, 24); // Symbol table size
+ putlong(ptr+20, 0L); // Entry point
+ putlong(ptr+24, 0L); // TEXT relocation size
+ putlong(ptr+28, 0L); // DATA relocation size
+
+ sptr = ptr + 32 + dsize; // Set sptr to symbol table location
+
+ putlong(sptr, 4L); // String offset of symbol1
+ putlong(sptr+4, symtype); // Symbol type
+ putlong(sptr+8, 0x00000000); // Symbol has no value (START)
+ putlong(sptr+12, 4L + (sym2len-1)); // String offset of symbol2
+ putlong(sptr+16, symtype); // Symbol type
+ putlong(sptr+20, dsize); // Symbol is data size (END)
+
+ sptr = ptr + 32 + dsize + 24; // Set sptr to symbol table size loc
+
+ putlong(sptr, sym1len + 4L); // Size of symbol table
+
+ sptr = ptr + 32 + dsize + 24 + 4; // Set sptr to symbol table location
+
+ for(i=0; i<(sym1len-1); i++) // Write symbol1 to string table
+ sptr[i] = *sym1++;
+
+ sptr += (sym1len-1); // Step past symbol string
+ *sptr = '\0'; // Terminate symbol string
+ sptr += 1; // Step past termination
+
+ for(i=0; i<(sym2len-1); i++) // Write symbol2 to string table
+ sptr[i] = *sym2++;
+
+ sptr += (sym2len-1); // Step past symbol string
+ *sptr = '\0'; // Terminate symbol string
+ sptr += 1; // Step past termination
+
+ putlong(sptr, 0L); // Terminating long for object file
+
+ return pladd(ptr, fname);
+}
+
+
+//
+// Takes a file name, gets in its image, puts it on plist. The image may
+// already be in memory: If so, the ptr arg is non-null. If so, the file is
+// already closed. Note that the file is already open (from dofile()). RETURNS
+// a pointer to the OFILE structure for this file, so you can diddle its flags
+// (dofile sets O_USED for files on the command line).
+//
+int doobject(char * fname, int fd, char * ptr)
+{
+ long size; // File size
+
+ if (ptr == NULL)
+ {
+ size = FSIZE(fd); // Get size of input object file
+
+ // Allocate memory for file data
+ if ((ptr = malloc(size)) == NULL)
+ {
+ printf("Out of memory while processing %s\n", fname);
+ close(fd); // Close and error
+ return 1;
+ }
+
+ // Read in file data
+ if (read(fd, ptr, size) != size)
+ {
+ printf("File read error on %s\n", fname);
+ close(fd); // Close, free memory and error
+ free(ptr);
+ return 1;
+ }
+
+ strcpy(obj_fname[obj_index], path_tail(fname)); // SCPCD : get the name of the file instead of all pathname
+ obj_segsize[obj_index][0] = (getlong(ptr + 4) + secalign) & ~secalign;
+ obj_segsize[obj_index][1] = (getlong(ptr + 8) + secalign) & ~secalign;
+ obj_segsize[obj_index][2] = (getlong(ptr + 12) + secalign) & ~secalign;
+ obj_index++;
+
+ close(fd); // Close file
+ }
+
+ // Now add this image to the list of pending ofiles (plist)
+ // This routine is shared by doinclude after it builds the image
+ return pladd(ptr, fname);
+}
+
+
+//
+// Process In Outstanding Object Files
+//
+int flush_handles(void)
+{
+ int i; // Iterator
+ char magic[4]; // Magic header number
+ // unsigned test;
+
+ // Process all handles
+ for(i=0; i<(int)hd; i++)
+ {
+ // Verbose mode information
+ if (vflag == 1)
+ {
+ printf("Read file %s%s\n", name[i], hflag[i] ? " (include)" : "");
+ }
+
+ if (!hflag[i])
+ { // Attempt to read file magic number
+ // OBJECT FILES
+ if (read(handle[i],magic,4) != 4)
+ {
+ printf("Error reading file %s\n", name[i]);
+ close(handle[i]); // Close file and error
+ return 1;
+ }
+
+ lseek(handle[i], 0L, 0); // Reset to start of input file
+ // test = getlong(magic); printf("Magic Number is 0x%08X\n", test);
+
+ if (getlong(magic) == 0x00000107)
+ { // Look for SMAC/MAC object files
+ if (doobject(name[i], handle[i], 0L)) // Process input object file
+ return 1;
+ }
+ else
+ {
+ printf("%s is not a supported object file\n", name[i]);
+ close(handle[i]); // Close file and error
+ return 1;
+ }
+ }
+ else
+ {
+ // INCLUDE FILES
+ // If hflag[i] is 1, include this in the data segment; if 2, put in in text segment
+ if (doinclude(name[i], handle[i], hsym1[i], hsym2[i], hflag[i] - 1))
+ return 1;
+ }
+ }
+
+ // Free include, symbol & object handles
+ for(i=0; i<(int)hd; i++)
+ {
+ free(name[i]);
+
+ if (hflag[i])
+ {
+ free(hsym1[i]);
+ free(hsym2[i]);
+ }
+ }
+
+ hd = 0; // Reset next handle indicator
+ return 0; // Return
+}
+
+
+//
+// Load newargv with Pointers to Arguments Found in the Buffer
+//
+int parse(char * buf, char * newargv[])
+{
+ int i = 1;
+
+ if (vflag)
+ printf("begin parsing\n");
+
+ while (1)
+ {
+ while (*buf && strchr(",\t\n\r\14 ", *buf))
+ buf++;
+
+ /* test for eof */
+ if (*buf == '\0' || *buf == 26)
+ {
+ if (i == 0)
+ {
+ printf("No commands in command file\n");
+ return -1;
+ }
+ else
+ {
+ return i;
+ }
+ }
+
+ /* test for comment */
+ if (*buf == '#')
+ {
+ /* found a comment; skip to next \n and start over */
+ while (*buf && *buf != '\n')
+ buf++;
+
+ continue;
+ }
+
+ if (i == MAXARGS)
+ {
+ printf("Too many arguments in command file\n");
+ return -1;
+ }
+
+ newargv[i] = buf;
+
+ while (!strchr(",\t\n\r\14 ", *buf))
+ {
+ if (*buf == '\0' || *buf == 26)
+ {
+ printf("Finished parsing %d args\n", i);
+ return i;
+ }
+
+ buf++;
+ }
+
+ *buf++ = '\0';
+
+ if (vflag)
+ printf("argv[%d] = \"%s\"\n", i, newargv[i]);
+
+ i++;
+ }
+}
+
+
+//
+// Process in a Link Command File
+//
+int docmdfile(char * fname)
+{
+ int fd; // File descriptor
+ unsigned size; // Command file size
+ char * ptr; // Pointer
+ int newargc; // New argument count
+ char * (*newargv)[]; // New argument value array
+
+ // Verbose information
+ if (vflag > 1)
+ printf("docmdfile(%s)\n", fname);
+
+ // Allocate memory for new argument values
+ newargv = malloc((long)(sizeof(char *) * MAXARGS));
+
+ if (!newargv)
+ {
+ printf("Out of memory.\n");
+ return 1;
+ }
+
+ // Attempt to open and read in the command file
+ if (fname)
+ {
+ if ((fd = open(fname, _OPEN_FLAGS)) < 0)
+ {
+ printf("Cannot open command file %s.\n", fname);
+ return 1;
+ }
+
+ size = FSIZE(fd);
+
+ if ((ptr = malloc(size + 1)) == NULL)
+ {
+ printf("Out of memory.\n");
+ close(fd);
+ return 1;
+ }
+
+ if (read(fd, ptr, size) != (int)size)
+ {
+ printf("Read error on command file %s.\n", fname);
+ close(fd);
+ return 1;
+ }
+
+ *(ptr + size) = 0; // Null terminate the buffer
+ close(fd);
+ }
+ else
+ {
+ printf("No command filename specified\n");
+ return 1;
+ }
+
+ // Parse the command file
+ if ((newargc = parse(ptr, *newargv)) == -1)
+ {
+ return 1;
+ }
+
+ // Process the inputted flags
+ if (doargs(newargc, *newargv))
+ {
+ printf("docmdfile: doargs returns TRUE\n");
+ return 1;
+ }
+
+ free(ptr);
+ free(newargv);
+
+ return 0;
+}
+
+
+//
+// Take an Argument List and Parse the Command Line
+//
+int doargs(int argc, char * argv[])
+{
+ int i = 1; // Iterator
+ int c; // Command line character
+ char * ifile, * isym; // File name and symbol name for -i
+
+ while (i < argc)
+ { // Parse through option switches & files
+ if (argv[i][0] == '-')
+ { // Process command line switches
+ if (!argv[i][1])
+ {
+ printf("Illegal option argument: %s\n\n", argv[i]);
+ display_help();
+ return 1;
+ }
+
+ c = argv[i++][1]; // Get next character in command line
+
+ switch (c)
+ { // Process command line switch
+ case '?': // Display usage information
+ case 'h':
+ case 'H':
+ display_version();
+ display_help();
+ return 1;
+ case 'a':
+ case 'A': // Set absolute linking on
+ if (aflag)
+ warn('a', 1);
+
+ if (i + 2 >= argc)
+ {
+ printf("Not enough arguments to -a\n");
+ return 1;
+ }
+
+ aflag = 1; // Set abs link flag
+ // Segment order is TEXT, DATA, BSS
+ // Text segment can be 'r', 'x' or a value
+ ttype = 0;
+
+ if ((*argv[i] == 'r' || *argv[i] == 'R') && !argv[i][1])
+ {
+ ttype = -1; // TEXT segment is relocatable
+ }
+ else if ((*argv[i] == 'x' || *argv[i] == 'X'))
+ {
+ printf("Error in text-segment address: cannot be contiguous\n");
+ return 1;
+ }
+ else if ((ttype = 0), getval(argv[i], &tval))
+ {
+ printf("Error in text-segment address: %s is not 'r', 'x' or an address.", argv[i]);
+ return 1;
+ }
+
+ i++;
+ // Data segment can be 'r', 'x' or a value
+ dtype = 0;
+
+ if ((*argv[i] == 'r' || *argv[i] == 'R') && !argv[i][1])
+ {
+ dtype = -1; // DATA segment is relocatable
+ }
+ else if ((*argv[i] == 'x' || *argv[i] == 'X'))
+ {
+ dtype = -2; // DATA follows TEXT
+ }
+ else if ((dtype = 0), getval(argv[i],&dval))
+ {
+ printf("Error in data-segment address: %s is not 'r', 'x' or an address.", argv[i]);
+ return 1;
+ }
+
+ i++;
+ btype = 0;
+
+ // BSS segment can be 'r', 'x' or a value
+ if ((*argv[i] == 'r' || *argv[i] == 'R') && !argv[i][1])
+ {
+ btype = -1; // BSS segment is relocatable
+ }
+ else if ((*argv[i] == 'x' || *argv[i] == 'X'))
+ {
+ btype = -3; // BSS follows DATA
+ }
+ else if ((btype = 0), getval(argv[i],&bval))
+ {
+ printf("Error in bss-segment address: %s is not 'r', 'x[td]', or an address.", argv[i]);
+ return 1;
+ }
+
+ i++;
+ break;
+ case 'b':
+ case 'B': // Don't remove muliply defined locals
+ if (bflag)
+ warn('b', 1);
+
+ bflag = 1;
+ break;
+ case 'c':
+ case 'C': // Process a command file
+ if (i == argc)
+ {
+ printf("Not enough arguments to -c\n");
+ return 1;
+ }
+
+ if (docmdfile(argv[i++]))
+ {
+ return 1;
+ }
+
+ break;
+ case 'd':
+ case 'D': // Wait for "return" before exiting
+ if (dflag)
+ warn('d', 0);
+
+ dflag = 1;
+ waitflag = 1;
+ break;
+ case 'e':
+ case 'E': // Output COFF (absolute only)
+ cflag = 1;
+ break;
+ case 'g':
+ case 'G': // Output source level debugging
+ printf("\'g\' flag not currently implemented\n");
+ gflag = 0;
+ /*
+ if (gflag) warn('g', 1);
+ gflag = 1;
+ */
+ break;
+ case 'i':
+ case 'I': // Include binary file
+ if (i + 2 > argc)
+ {
+ printf("Not enough arguments to -i\n");
+ return 1;
+ }
+
+ ifile = argv[i++];
+ isym = argv[i++];
+
+ if ((argv[i-3][2] == 'i') || (argv[i-3][2] == 'I'))
+ { // handle -ii (No truncation)
+ if (!cflag)
+ printf("warning: (-ii) COFF format output not specified\n");
+ }
+ else
+ { // handle -i (Truncation)
+ if (strlen(isym) > 7)
+ isym[7] = '\0';
+ }
+
+ // Place include files in the DATA segment only
+ if (dofile(ifile, DSTSEG_D, isym))
+ return 1;
+
+ break;
+ case 'l':
+ case 'L': // Add local symbols
+ if (lflag)
+ warn('l', 1);
+
+ lflag = 1;
+ break;
+ case 'm':
+ case 'M': // Produce load symbol map
+ if (mflag)
+ warn('m', 1);
+
+ mflag = 1;
+ break;
+ case 'n':
+ case 'N': // Output no header to .abs file
+ if (noheaderflag)
+ warn('n', 1);
+
+ noheaderflag = 1;
+ break;
+ case 'o':
+ case 'O': // Specify an output file
+ if (oflag)
+ warn('o', 1);
+
+ oflag = 1;
+
+ if (i >= argc)
+ {
+ printf("No output filename following -o switch\n");
+ return 1;
+ }
+
+ if (strlen(argv[i]) > FARGSIZE - 5)
+ {
+ printf("Output file name too long (sorry!)\n");
+ return 1;
+ }
+
+ strcpy(ofile, argv[i++]);
+ break;
+ case 'r':
+ case 'R': // Section alignment size
+ if (rflag)
+ warn('r', 1);
+
+ rflag = 1;
+
+ switch (argv[i-1][2])
+ {
+ case 'w': case 'W': secalign = 1; break; // Word alignment
+ case 'l': case 'L': secalign = 3; break; // Long alignment
+ case 'p': case 'P': secalign = 7; break; // Phrase alignment
+ case 'd': case 'D': secalign = 15; break; // Double phrase alignment
+ case 'q': case 'Q': secalign = 31; break; // Quad phrase alignment
+ default: secalign = 7; break; // Default phrase alignment
+ }
+
+ break;
+ case 's':
+ case 'S': // Output only global symbols
+ if (sflag)
+ warn('s', 1);
+
+ sflag = 1;
+ break;
+ case 'v':
+ case 'V': // Verbose information
+ if (!vflag && !versflag)
+ {
+ display_version();
+ }
+
+ vflag++;
+ break;
+ case 'w':
+ case 'W': // Show warnings flag
+ if (wflag)
+ warn('w', 1);
+
+ wflag = 1;
+ break;
+ case 'z':
+ case 'Z': // Suppress banner flag
+ if (zflag)
+ warn('z', 1);
+
+ zflag = 1;
+ break;
+ default:
+ printf("unknown option argument `%c'\n", c);
+ return 1;
+ }
+ }
+ else
+ { // Not a switch, then process as a file
+ if (dofile(argv[i++], 0, NULL))
+ return 1;
+ }
+
+ }
+
+ if (!oflag && vflag)
+ {
+ strcpy(ofile, "output");
+ printf("Output file is %s[.ext]\n", ofile);
+ }
+
+ if (oflag && vflag)
+ printf("Output file is %s\n", ofile);
+
+ if (sflag)
+ lflag = 0;
+
+ return 0; // No problems encountered
+}
+
+
+//
+// Display Version Information
+//
+void display_version(void)
+{
+ if (displaybanner)// && vflag)
+ {
+ printf("\nReboot's Linker for Atari Jaguar\n");
+ printf("Copyright (c) 199x Allan K. Pratt, 2011 Reboot\n");
+ printf("V%i.%i.%i %s (%s)\n\n", MAJOR, MINOR, PATCH, __DATE__, PLATFORM);
+ }
+}
+
+
+//
+// Display Command Line Help
+//
+void display_help(void)
+{
+ printf("Usage:\n");
+ printf(" %s [-options] file(s)\n", cmdlnexec);
+ printf("\n");
+ printf("Options:\n");
+ printf(" -? or -h display usage information\n");
+ printf(" -a <text> <data> <bss> output absolute file\n");