//
// RLN - Reboot's Linker for the Atari Jaguar Console System
// RLN.C - Application Code
-// Copyright (C) 199x, Allan K. Pratt, 2011 Reboot & Friends
+// Copyright (C) 199x, Allan K. Pratt, 2014 Reboot & Friends
//
#include "rln.h"
-unsigned errflag = 0; // Error flag, goes TRUE on error
-unsigned waitflag = 0; // Wait for any keypress flag
-unsigned versflag = 0; // Version banner has been shown flag
-unsigned aflag = 0; // Absolute linking flag
-unsigned bflag = 0; // Don't remove mulitply def locals flag
-unsigned cflag = 0; // COF executable
-unsigned dflag = 0; // Wait for key after link flag
-unsigned gflag = 0; // Source level debug include flag
-unsigned lflag = 0; // Add local symbols to output flag
-unsigned mflag = 0; // Produce symbol load map flag
-unsigned oflag = 0; // Output filename specified
-unsigned rflag = 0; // Segment alignment size flag
-unsigned sflag = 0; // Output only global symbols
-unsigned vflag = 0; // Verbose flag
-unsigned zflag = 0; // Suppress banner flag
-unsigned pflag, uflag, wflag; // Unimplemented flags
-unsigned hd = 0; // Index of next file handle to fill
-unsigned secalign = 7; // Section Alignment (8=phrase)
-unsigned tbase = 0; // TEXT base address
-unsigned dbase = 0; // DATA base address
-unsigned bbase = 0; // BSS base address
-unsigned textoffset = 0; // COF TEXT segment offset
-unsigned dataoffset = 0; // COF DATA segment offset
-unsigned bssoffset = 0; // COF BSS segment offset
-unsigned displaybanner = 1; // Display version banner
-unsigned symoffset = 0; // Symbol table offset in output file
-unsigned dosymi = 0; // Dosym() processing iterator
-unsigned dbgsymbase = 0; // Debug symbol base address
-//unsigned symtrunc = 0; // Symbol truncation -i and -ii
-int noheaderflag = 0; // No header flag for ABS files
-int hflags; // Value of the arg to -h option
-int ttype, dtype, btype; // Type flag: 0, -1, -2, -3, -4
-int tval, dval, bval; // Values of these abs bases
-int hflag[NHANDLES]; // True for include files
-int handle[NHANDLES]; // Open file handles
-int textsize, datasize, bsssize; // Cumulative segment sizes
-char libdir[FARGSIZE * 3]; // Library directory to search
-char ofile[FARGSIZE]; // Output file name (.o)
-char * name[NHANDLES]; // Associated file names
-char * cmdlnexec = NULL; // Executable name - pointer to ARGV[0]
-char * hsym1[SYMLEN]; // First symbol for include files
-char * hsym2[SYMLEN]; // Second symbol for include files
-struct OFILE * plist = NULL; // Object image list pointer
-struct OFILE * plast; // Last object image list pointer
-struct OFILE * olist = NULL; // Pointer to first object file in list
-struct OFILE * olast; // Pointer to last object file in list
-char obj_fname[512][FNLEN]; // Object file names
-unsigned obj_segsize[512][3]; // Object file seg sizes; TEXT,DATA,BSS
-unsigned obj_index = 0; // Object file index/count
-struct HREC * htable[NBUCKETS]; // Hash table
-struct HREC * unresolved = NULL; // Pointer to unresolved hash list
-struct HREC * lookup(char *); // Hash lookup
-char * ost; // Output symbol table
-char * ost_ptr; // Output symbol table; current pointer
-char * ost_end; // Output symbol table; end pointer
-char * oststr; // Output string table
-char * oststr_ptr; // Output string table; current pointer
-char * oststr_end; // Output string table; end pointer
-int ost_index = 0; // Index of next ost addition
-int endian; // Processor endianess
+unsigned errflag = 0; // Error flag, goes TRUE on error
+unsigned waitflag = 0; // Wait for any keypress flag
+unsigned versflag = 0; // Version banner has been shown flag
+unsigned aflag = 0; // Absolute linking flag
+unsigned bflag = 0; // Don't remove mulitply def locals flag
+unsigned cflag = 0; // COF executable
+unsigned dflag = 0; // Wait for key after link flag
+unsigned gflag = 0; // Source level debug include flag
+unsigned lflag = 0; // Add local symbols to output flag
+unsigned mflag = 0; // Produce symbol load map flag
+unsigned oflag = 0; // Output filename specified
+unsigned rflag = 0; // Segment alignment size flag
+unsigned sflag = 0; // Output only global symbols
+unsigned vflag = 0; // Verbose flag
+unsigned wflag = 0; // Show warnings flag
+unsigned zflag = 0; // Suppress banner flag
+unsigned pflag, uflag; // Unimplemented flags
+unsigned hd = 0; // Index of next file handle to fill
+unsigned secalign = 7; // Section Alignment (8=phrase)
+unsigned tbase = 0; // TEXT base address
+unsigned dbase = 0; // DATA base address
+unsigned bbase = 0; // BSS base address
+unsigned textoffset = 0; // COF TEXT segment offset
+unsigned dataoffset = 0; // COF DATA segment offset
+unsigned bssoffset = 0; // COF BSS segment offset
+unsigned displaybanner = 1; // Display version banner
+unsigned symoffset = 0; // Symbol table offset in output file
+unsigned dosymi = 0; // Dosym() processing iterator
+unsigned dbgsymbase = 0; // Debug symbol base address
+//unsigned symtrunc = 0; // Symbol truncation -i and -ii
+int noheaderflag = 0; // No header flag for ABS files
+int hflags; // Value of the arg to -h option
+int ttype, dtype, btype; // Type flag: 0, -1, -2, -3, -4
+int tval, dval, bval; // Values of these abs bases
+int hflag[NHANDLES]; // True for include files
+int handle[NHANDLES]; // Open file handles
+int textsize, datasize, bsssize; // Cumulative segment sizes
+char libdir[FARGSIZE * 3]; // Library directory to search
+char ofile[FARGSIZE]; // Output file name (.o)
+char * name[NHANDLES]; // Associated file names
+char * cmdlnexec = NULL; // Executable name - pointer to ARGV[0]
+char * hsym1[SYMLEN]; // First symbol for include files
+char * hsym2[SYMLEN]; // Second symbol for include files
+struct OFILE * plist = NULL; // Object image list pointer
+struct OFILE * plast; // Last object image list pointer
+struct OFILE * olist = NULL; // Pointer to first object file in list
+struct OFILE * olast; // Pointer to last object file in list
+char obj_fname[2048][FNLEN]; // Object file names
+unsigned obj_segsize[2048][3]; // Object file seg sizes; TEXT,DATA,BSS
+unsigned obj_index = 0; // Object file index/count
+char * arPtr[512];
+uint32_t arIndex = 0;
+struct HREC * htable[NBUCKETS]; // Hash table
+struct HREC * unresolved = NULL; // Pointer to unresolved hash list
+struct HREC * lookup(char *); // Hash lookup
+char * ost; // Output symbol table
+char * ost_ptr; // Output symbol table; current pointer
+char * ost_end; // Output symbol table; end pointer
+char * oststr; // Output string table
+char * oststr_ptr; // Output string table; current pointer
+char * oststr_end; // Output string table; end pointer
+int ost_index = 0; // Index of next ost addition
+int endian; // Processor endianess
+
+// Some human readable defines for endianess
+#define ENDIANNESS_BIG 1
+#define ENDIANNESS_LITTLE 0
//
// Get a Long Word from Memory
//
-unsigned getlong(char * src)
+uint32_t getlong(uint8_t * src)
{
- unsigned temp;
- char * out;
-
- out = (char *)&temp;
+ uint32_t temp;
+ uint8_t * out;
- if (endian == 1)
+ out = (uint8_t *)&temp;
+
+ if (endian == ENDIANNESS_BIG)
{
*out++ = src[0];
*out++ = src[1];
//
// Put a Long Word into Memory
//
-void putlong(char * dest, unsigned val)
+void putlong(uint8_t * dest, uint32_t val)
{
- *dest++ = (char)(val >> 24);
- *dest++ = (char)(val >> 16);
- *dest++ = (char)(val >> 8);
- *dest = (char)val;
+ *dest++ = (uint8_t)(val >> 24);
+ *dest++ = (uint8_t)(val >> 16);
+ *dest++ = (uint8_t)(val >> 8);
+ *dest = (uint8_t)val;
}
//
// Get a Word from Memory
//
-int getword(char * src)
+uint16_t getword(uint8_t * src)
{
- unsigned temp;
- char * out;
+ uint16_t temp;
+ uint8_t * out = (uint8_t *)&temp;
- out = (char *)&temp;
- *out++ = src[1];
- *out++ = src[0];
- *out++ = 0;
- *out = 0;
+ if (endian == ENDIANNESS_BIG)
+ {
+ out[0] = src[0];
+ out[1] = src[1];
+ }
+ else
+ {
+ out[0] = src[1];
+ out[1] = src[0];
+ }
return temp;
}
//
// Put a Word into Memory
//
-void putword(char * dest, int val)
+void putword(uint8_t * dest, uint16_t val)
{
- *dest++ = (char)(val >> 8);
- *dest = (char)val;
+ *dest++ = (uint8_t)(val >> 8);
+ *dest = (uint8_t)val;
}
//
-// Obtain a File's Size
+// Find passed in file's length in bytes
+// N.B.: This also resets the file's pointer to the start of the file
//
-long FSIZE(int fd)
+long FileSize(int fd)
{
- unsigned temp, hold;
+ long size = lseek(fd, 0, SEEK_END);
+ lseek(fd, 0, SEEK_SET);
- temp = lseek(fd, 0L, SEEK_CUR);
- hold = lseek(fd, 0L, SEEK_END);
- lseek(fd, 0L, SEEK_SET);
-
- return hold;
+ return size;
}
//
int dosym(struct OFILE * ofile)
{
- char * symptr; // Symbol pointer
- char * symend; // Symbol end pointer
- int type; // Symbol type
- long value; // Symbol value
- int index; // Symbol index
- int j; // Iterator
- int ssidx; // Segment size table index
- unsigned tsegoffset; // Cumulative TEXT segment offset
- unsigned dsegoffset; // Cumulative DATA segment offset
- unsigned bsegoffset; // Cumulative BSS segment offset
- struct HREC * hptr; // Hash table pointer for globl/extrn
- char sym[SYMLEN]; // String for symbol name/hash search
-
- // Point to first symbol record in the object file
- symptr = (ofile->o_image + 32 +
- ofile->o_header.tsize +
- ofile->o_header.dsize +
- ofile->o_header.absrel.reloc.tsize +
- ofile->o_header.absrel.reloc.dsize);
-
- // Point to end of symbol record in the object file
- symend = symptr + ofile->o_header.ssize;
-
- // Search through object segment size table to accumulated segment sizes to ensure
- // the correct offsets are used in the resulting COF file.
- ssidx = -1; // Initialise segment index
- tsegoffset = dsegoffset = bsegoffset = 0; // Initialise segment offsets
-
- for(j=0; j<(int)obj_index; j++)
- { // Search for object file name
- if (!strcmp(ofile->o_name, obj_fname[j]))
- {
- ssidx = j; // Object file name found
- break;
- }
-
- tsegoffset += obj_segsize[j][0]; // Accumulate segment sizes
- dsegoffset += obj_segsize[j][1];
- bsegoffset += obj_segsize[j][2];
- }
-
- if (ssidx == -1)
- {
- printf("dosym() : Cannot get object file segment size : %s\n", ofile->o_name);
- return 1;
- }
-
- // Process each record in the symbol table
- for(; symptr!=symend ; symptr+=12)
- {
- index = getlong(symptr + 0); // Obtain symbol string index
- type = getlong(symptr + 4); // Obtain symbol type
- value = getlong(symptr + 8); // Obtain symbol value
-
- // Global/External symbols have a pre-processing stage
- if (type & 0x01000000)
- {
- // Obtain the string table index for the relocation symbol, look for it in the globals
- // hash table to obtain information on that symbol. For the hash calculation to work
- // correctly it must be placed in a 'clean' string before looking it up.
- memset(sym, 0, SYMLEN);
- strcpy(sym, symend + index);
- hptr = lookup(sym);
-
- if (hptr == NULL)
- {
- printf("dosym() : Cannot determine symbol : %s\n", sym);
- return 1;
- }
-
- // Search through object segment size table to obtain segment sizes for the object
- // that has the required external/global as a local symbol. As each object is
- // interrogated the segment sizes are accumulated to ensure the correct offsets are
- // used in the resulting COF file. This is effectively 'done again' only as we
- // are working with a different object file.
- ssidx = -1; // Initialise segment index
- tsegoffset = dsegoffset = bsegoffset = 0; // Initialise segment offsets
-
- for(j=0; j<(int)obj_index; j++)
- { // Search for object filename
- if (!strcmp((const char *)hptr->h_ofile, obj_fname[j]))
+ char * symptr; // Symbol pointer
+ char * symend; // Symbol end pointer
+ int type; // Symbol type
+ long value; // Symbol value
+ int index; // Symbol index
+ int j; // Iterator
+ int ssidx; // Segment size table index
+ unsigned tsegoffset; // Cumulative TEXT segment offset
+ unsigned dsegoffset; // Cumulative DATA segment offset
+ unsigned bsegoffset; // Cumulative BSS segment offset
+ struct HREC * hptr; // Hash table pointer for globl/extrn
+ char sym[SYMLEN]; // String for symbol name/hash search
+
+ // Point to first symbol record in the object file
+ symptr = (ofile->o_image + 32
+ + ofile->o_header.tsize
+ + ofile->o_header.dsize
+ + ofile->o_header.absrel.reloc.tsize
+ + ofile->o_header.absrel.reloc.dsize);
+
+ // Point to end of symbol record in the object file
+ symend = symptr + ofile->o_header.ssize;
+
+ // Search through object segment size table to accumulated segment sizes to
+ // ensure the correct offsets are used in the resulting COF file.
+ ssidx = -1; // Initialise segment index
+ tsegoffset = dsegoffset = bsegoffset = 0; // Initialise segment offsets
+
+ // Search for object file name
+ for(j=0; j<(int)obj_index; j++)
+ {
+ if (!strcmp(ofile->o_name, obj_fname[j]))
+ {
+ ssidx = j; // Object file name found
+ break;
+ }
+
+ tsegoffset += obj_segsize[j][0]; // Accumulate segment sizes
+ dsegoffset += obj_segsize[j][1];
+ bsegoffset += obj_segsize[j][2];
+ }
+
+ if (ssidx == -1)
+ {
+ printf("dosym() : Cannot get object file segment size : %s\n", ofile->o_name);
+ return 1;
+ }
+
+ // Process each record in the symbol table
+ for(; symptr!=symend; symptr+=12)
+ {
+ index = getlong(symptr + 0); // Obtain symbol string index
+ type = getlong(symptr + 4); // Obtain symbol type
+ value = getlong(symptr + 8); // Obtain symbol value
+
+ // Global/External symbols have a pre-processing stage
+ if (type & 0x01000000)
+ {
+ // Obtain the string table index for the relocation symbol, look
+ // for it in the globals hash table to obtain information on that
+ // symbol. For the hash calculation to work correctly it must be
+ // placed in a 'clean' string before looking it up.
+ memset(sym, 0, SYMLEN);
+ strcpy(sym, symend + index);
+ hptr = lookup(sym);
+
+ if (hptr == NULL)
+ {
+ printf("dosym() : Cannot determine symbol : %s\n", sym);
+ return 1;
+ }
+
+ // Search through object segment size table to obtain segment sizes
+ // for the object that has the required external/global as a local
+ // symbol. As each object is interrogated the segment sizes are
+ // accumulated to ensure the correct offsets are used in the
+ // resulting COF file. This is effectively 'done again' only as we
+ // are working with a different object file.
+ ssidx = -1; // Initialise segment index
+ tsegoffset = dsegoffset = bsegoffset = 0; // Initialise segment offsets
+
+ for(j=0; j<(int)obj_index; j++)
+ { // Search for object filename
+ if (!strcmp((const char *)hptr->h_ofile, obj_fname[j]))
+ {
+ ssidx = j; // Symbol object filename
+ break;
+ }
+
+ tsegoffset += obj_segsize[j][0]; // Accumulate segment sizes
+ dsegoffset += obj_segsize[j][1];
+ bsegoffset += obj_segsize[j][2];
+ }
+
+ if (ssidx == -1)
+ {
+ printf("dosym() : Cannot get object file segment size : %s\n",
+ ofile->o_name);
+ return 1;
+ }
+
+ type = hptr->h_type; // Update type with global type
+
+ if (type == 0x03000000)
+ type = 0x02000000; // Reset external flag if absolute
+
+ // If the global/external has a value then update that vaule in
+ // accordance with the segment sizes of the object file it
+ // originates from
+ if (hptr->h_value)
+ {
+ switch (hptr->h_type & 0x0E000000)
+ {
+ case 0x02000000: // Absolute value
+ case 0x04000000: // TEXT segment
+ value = hptr->h_value;
+ break;
+ case 0x06000000: // DATA segment
+ value = hptr->h_value - (hptr->h_ofile->o_header.tsize);
+ break;
+ case 0x08000000: // BSS segment
+ value = hptr->h_value
+ - (hptr->h_ofile->o_header.tsize + hptr->h_ofile->o_header.dsize);
+ break;
+ }
+ }
+ }
+
+ // Process and update the value dependant on whether the symbol is a
+ // debug symbol or not
+ if (type & 0xF0000000)
+ {
+ // DEBUG SYMBOL
+ // Set the correct debug symbol base address (TEXT segment)
+ dbgsymbase = 0;
+
+ for(j=0; (unsigned)j<dosymi; j++)
+ dbgsymbase += obj_segsize[j][0];
+
+ switch (type & 0xFF000000)
+ {
+ case 0x64000000:
+ value = tval + dbgsymbase;
+ break;
+ case 0x44000000:
+ case 0x46000000:
+ case 0x48000000:
+ value = tval + dbgsymbase + value;
+ default:
+ break;
+ }
+
+ putlong(symptr + 8, value);
+ }
+ else
+ {
+ // NON-DEBUG SYMBOL
+ // Now make modifications to the symbol value, local or global,
+ // based on the segment sizes of the object file currently being
+ // processed.
+ switch (type & T_SEG)
+ {
+ case 0x02000000: // Absolute value
+ break;
+ case T_TEXT: // TEXT segment
+ if (type & 0x01000000)
+ value = tbase + tsegoffset + value;
+ else
+ value = tbase + tsegoffset + value;
+
+ putlong(symptr + 8, value);
+ break;
+ case T_DATA: // DATA segment
+ if (type & 0x01000000)
+ value = dbase + dsegoffset + value;
+ else
+ value = dbase + dsegoffset + (value - ofile->o_header.tsize);
+
+ putlong(symptr + 8, value);
+ break;
+ case T_BSS: // BSS segment
+ if (type & 0x01000000)
+ value = bbase + bsegoffset + value;
+ else
+ value = bbase + bsegoffset
+ + (value - (ofile->o_header.tsize + ofile->o_header.dsize));
+
+ putlong(symptr + 8, value);
+ break;
+ default:
+ break;
+ }
+ }
+
+ // Add to output symbol table
+ if (lflag || !islocal(type))
+ {
+ if (islocal(type) || isglobal(type))
{
- ssidx = j; // Symbol object filename
- break;
- }
-
- tsegoffset += obj_segsize[j][0]; // Accumulate segment sizes
- dsegoffset += obj_segsize[j][1];
- bsegoffset += obj_segsize[j][2];
- }
-
- if (ssidx == -1)
- {
- printf("dosym() : Cannot get object file segment size : %s\n",
- ofile->o_name);
- return 1;
- }
-
- type = hptr->h_type; // Update type with global type
-
- if (type == 0x03000000)
- type = 0x02000000; // Reset external flag if absolute
-
- // If the global/external has a value then update that vaule in accordance with the
- // segment sizes of the object file it originates from
- if (hptr->h_value)
- {
- switch (hptr->h_type & 0x0E000000)
+ if ((index = ost_add(symend + index, type, value)) == -1)
+ return 1;
+ }
+ else
{
- case 0x02000000: // Absolute value
- case 0x04000000: // TEXT segment
- value = hptr->h_value;
- break;
- case 0x06000000: // DATA segment
- value = hptr->h_value - (hptr->h_ofile->o_header.tsize);
- break;
- case 0x08000000: // BSS segment
- value = hptr->h_value -
- (hptr->h_ofile->o_header.tsize + hptr->h_ofile->o_header.dsize);
- break;
- }
- }
- }
-
- // Process and update the value dependant on whether the symbol is a debug symbol or not
- if (type & 0xF0000000)
- { // DEBUG SYMBOL
- // Set the correct debug symbol base address (TEXT segment)
- dbgsymbase = 0;
-
- for(j=0; (unsigned)j<dosymi; j++)
- dbgsymbase += obj_segsize[j][0];
-
- switch (type & 0xFF000000)
- {
- case 0x64000000:
- value = tval + dbgsymbase;
- break;
- case 0x44000000:
- case 0x46000000:
- case 0x48000000:
- value = tval + dbgsymbase + value;
- default:
- break;
- }
-
- putlong(symptr + 8, value);
- }
- else
- { // NON-DEBUG SYMBOL
- // Now make modifications to the symbol value, local or global, based on the segment sizes
- // of the object file currently being processed.
- switch (type & T_SEG)
- {
- case 0x02000000: // Absolute value
- break;
- case T_TEXT: // TEXT segment
- if (type & 0x01000000) value = tbase + tsegoffset + value;
- else value = tbase + tsegoffset + value;
- putlong(symptr + 8, value);
- break;
- case T_DATA: // DATA segment
- if (type & 0x01000000) value = dbase + dsegoffset + value;
- else value = dbase + dsegoffset + (value - ofile->o_header.tsize);
- putlong(symptr + 8, value);
- break;
- case T_BSS: // BSS segment
- if (type & 0x01000000) value = bbase + bsegoffset + value;
- else value = bbase + bsegoffset +
- (value - (ofile->o_header.tsize + ofile->o_header.dsize));
- putlong(symptr + 8, value);
- break;
- default:
- break;
- }
- }
-
- // Add to output symbol table
- if (lflag || !islocal(type))
- {
- if (islocal(type) || isglobal(type))
- {
- if ((index = ost_add(symend + index, type, value)) == -1)
- return 1;
- }
- else
- {
- // Belongs in OST, but don't look it up yet
- index = -1;
- }
- }
- }
-
- dosymi++; // Increment dosym() processsing
- return 0;
+ // Belongs in OST, but don't look it up yet
+ index = -1;
+ }
+ }
+ }
+
+ // Increment dosym() processsing
+ dosymi++;
+
+ return 0;
}
//
-// Free Up Hash Records
+// Free up hash memory
//
void hash_free(void)
{
}
-//
+//
// Add all Global and External Symbols to the Output Symbol Table
-//
+//
long docommon(void)
{
- struct HREC * hptr; // Hash record pointer
- int i; // Iterator
+ struct HREC * hptr; // Hash record pointer
+ int i; // Iterator
for(i=0; i<NBUCKETS; i++)
{
for(hptr=htable[i]; hptr!=NULL; hptr=hptr->h_next)
{
- if (iscommon(hptr->h_type))
+//NO! if (iscommon(hptr->h_type))
+ if (isglobal(hptr->h_type) || isextern(hptr->h_type))
{
if (hptr->h_type == 0x03000000)
- hptr->h_type = 0x02000000; // Absolutes can't be externals
+ hptr->h_type = 0x02000000; // Absolutes can't be externals
if (ost_add(hptr->h_sym, hptr->h_type, hptr->h_value) == -1)
return -1;
- }
+ }
}
}
//
-// Add a Symbol's Name, Type, and Value to the OST.
+// Add a Symbol's Name, Type, and Value to the OST.
// Return the Index of the Symbol in OST, or -1 for Error.
//
-int ost_add(char *name, int type, long value)
+int ost_add(char * name, int type, long value)
{
- int ost_offset_p, ost_offset_e = 0; // OST table offsets for position calcs
- int slen = 0; // Symbol string length
- int ostresult; // OST index result
-
- slen = strlen(name);
-
- // If the OST or OST String Table has not been initialised then do so
- if (ost_index == 0) {
- if ((ost = malloc(OST_BLOCK)) == NULL) {
- printf("OST memory allocation error (stringtable).\n");
- return(-1);
- }
- ost_ptr = ost; // Set OST start pointer
- ost_end = ost + OST_BLOCK; // Set OST end pointer
- if ((oststr = malloc(OST_BLOCK)) == NULL) {
- printf("OST memory allocation error (string).\n");
- return(-1);
- }
- putlong(oststr, 0x00000004); // Just null long for now
- oststr_ptr = oststr + 4; // Skip size of str table long (incl null long)
- putlong(oststr_ptr, 0x00000000); // Null terminating long
- oststr_end = oststr + OST_BLOCK;
- } else {
- // If next symbol record exceeds current allocation then expand symbol table.
- ost_offset_p = (ost_ptr - ost);
- ost_offset_e = (ost_end - ost);
- if ((ost_ptr + 12) > ost_end) { // 3 x int (12)
- if ((ost = realloc(ost, (unsigned)(ost_end + OST_BLOCK))) == NULL) {
- printf("OST memory reallocation error.\n");
- return(-1);
- }
- ost_ptr = ost + ost_offset_p;
- ost_end = (ost + ost_offset_e) + OST_BLOCK;
- }
- ost_offset_p = (oststr_ptr - oststr);
- ost_offset_e = (oststr_end - oststr);
- if ((oststr_ptr + (slen+1+4)) > oststr_end) {
- if ((oststr = realloc(oststr, (unsigned)(oststr_end + OST_BLOCK))) == NULL) {
- printf("OSTSTR memory reallocation error.\n");
- return(-1);
- }
- oststr_ptr = oststr + ost_offset_p;
- oststr_end = (oststr + ost_offset_e) + OST_BLOCK;
- }
- }
-
- // If this is a debug symbol and the include debug symbol flag (-g) is not set then do nothing
- if ((type & 0xF0000000) && !gflag) {
- // Do nothing
- } else {
- ostresult = ost_lookup(name); // Get symbol index in OST
- // If the symbol is in the output symbol table and the bflag is set (don't remove multiply
- // defined locals) and this is not an external/global symbol *** OR *** the symbol is not
- // in the output symbol table then add it.
- if (((ostresult != -1) && bflag && !(type & 0x01000000)) ||
- ((ostresult != -1) && gflag && (type & 0xF0000000)) || (ostresult == -1)) {
- if ((type & 0xF0000000) == 0x40000000)
- putlong(ost_ptr, 0x00000000); // Zero string table offset for dbg line
- else
- putlong(ost_ptr, (oststr_ptr - oststr)); // String table offset of symbol string
- putlong(ost_ptr + 4, type );
- putlong(ost_ptr + 8, value);
- ost_ptr += 12;
- // If the symbol type is anything but a debug line information symbol then write
- // the symbol string to the string table
- if ((type & 0xF0000000) != 0x40000000) {
- strcpy(oststr_ptr, name); // Put symbol name in string table
- *(oststr_ptr + slen) = '\0'; // Add null terminating character
- oststr_ptr += (slen + 1);
- putlong(oststr_ptr, 0x00000000); // Null terminating long
- putlong(oststr, (oststr_ptr - oststr)); // Update size of string table
- }
- return(ost_index++); // Return OST index
- }
- }
-
- return 0; // not sure about this as it could affect return indices. needed to stop return error.
+ int ost_offset_p, ost_offset_e = 0; // OST table offsets for position calcs
+ int slen = 0; // Symbol string length
+ int ostresult; // OST index result
+
+ slen = strlen(name);
+
+ // If the OST or OST String Table has not been initialised then do so
+ if (ost_index == 0)
+ {
+ if ((ost = malloc(OST_BLOCK)) == NULL)
+ {
+ printf("OST memory allocation error (stringtable).\n");
+ return -1;
+ }
+
+ ost_ptr = ost; // Set OST start pointer
+ ost_end = ost + OST_BLOCK; // Set OST end pointer
+
+ if ((oststr = malloc(OST_BLOCK)) == NULL)
+ {
+ printf("OST memory allocation error (string).\n");
+ return -1;
+ }
+
+ putlong(oststr, 0x00000004); // Just null long for now
+ oststr_ptr = oststr + 4; // Skip size of str table long (incl null long)
+ putlong(oststr_ptr, 0x00000000); // Null terminating long
+ oststr_end = oststr + OST_BLOCK;
+ }
+ else
+ {
+ // If next symbol record exceeds current allocation then expand symbol
+ // table.
+ ost_offset_p = (ost_ptr - ost);
+ ost_offset_e = (ost_end - ost);
+
+ // 3 x int (12)
+ if ((ost_ptr + 12) > ost_end)
+ {
+#warning "!!! Bad logic in realloc call !!!"
+ if ((ost = realloc(ost, (ost_end + OST_BLOCK))) == NULL)
+ {
+ printf("OST memory reallocation error.\n");
+ return -1;
+ }
+
+ ost_ptr = ost + ost_offset_p;
+ ost_end = (ost + ost_offset_e) + OST_BLOCK;
+ }
+
+ ost_offset_p = (oststr_ptr - oststr);
+ ost_offset_e = (oststr_end - oststr);
+
+ if ((oststr_ptr + (slen + 1 + 4)) > oststr_end)
+ {
+#warning "!!! Bad logic in realloc call !!!"
+ if ((oststr = realloc(oststr, (oststr_end + OST_BLOCK))) == NULL)
+ {
+ printf("OSTSTR memory reallocation error.\n");
+ return -1;
+ }
+
+ oststr_ptr = oststr + ost_offset_p;
+ oststr_end = (oststr + ost_offset_e) + OST_BLOCK;
+ }
+ }
+
+ // If this is a debug symbol and the include debug symbol flag (-g) is not
+ // set then do nothing
+ if ((type & 0xF0000000) && !gflag)
+ {
+ // Do nothing
+ }
+ else
+ {
+ ostresult = ost_lookup(name); // Get symbol index in OST
+
+ // If the symbol is in the output symbol table and the bflag is set
+ // (don't remove multiply defined locals) and this is not an
+ // external/global symbol *** OR *** the symbol is not in the output
+ // symbol table then add it.
+ if (((ostresult != -1) && bflag && !(type & 0x01000000))
+ || ((ostresult != -1) && gflag && (type & 0xF0000000)) || (ostresult == -1))
+ {
+ if ((type & 0xF0000000) == 0x40000000)
+ putlong(ost_ptr, 0x00000000); // Zero string table offset for dbg line
+ else
+ putlong(ost_ptr, (oststr_ptr - oststr)); // String table offset of symbol string
+
+ putlong(ost_ptr + 4, type );
+ putlong(ost_ptr + 8, value);
+ ost_ptr += 12;
+
+ // If the symbol type is anything but a debug line information
+ // symbol then write the symbol string to the string table
+ if ((type & 0xF0000000) != 0x40000000)
+ {
+ strcpy(oststr_ptr, name); // Put symbol name in string table
+ *(oststr_ptr + slen) = '\0'; // Add null terminating character
+ oststr_ptr += (slen + 1);
+ putlong(oststr_ptr, 0x00000000); // Null terminating long
+ putlong(oststr, (oststr_ptr - oststr)); // Update size of string table
+ }
+
+ if (vflag > 1)
+ {
+ printf("ost_add: (%s), type=$%08X, val=$%08X\n", name, type, value);
+ }
+
+ return ost_index++;
+ }
+ }
+
+ // Not sure about this as it could affect return indices. Needed to stop
+ // return error.
+ return 0;
}
+
//
-// Return the Index of a Symbol in the Output Symbol Table -------------------------------------
+// Return the Index of a Symbol in the Output Symbol Table
//
+int ost_lookup(char * sym)
+{
+ int i; // Iterator
+ int stro = 4; // Offset in string table
-int ost_lookup(char *sym) {
- int i; // Iterator
- int stro = 4; // Offset in string table
+ for(i=0; i<ost_index; i++)
+ {
+ if (strcmp(oststr + stro, sym) == 0)
+ return i + 1;
- for(i = 0; i < ost_index; i++) {
- if (!strcmp(oststr+stro, sym)) {
- return(i+1);
- } else {
- stro += strlen(oststr+stro) + 1;
- }
- }
+ stro += strlen(oststr + stro) + 1;
+ }
- return(-1);
+ return -1;
}
+
//
-// Add Unresolved Externs to the Output Symbol Table -------------------------------------------
+// Add Unresolved Externs to the Output Symbol Table
//
+int dounresolved(void)
+{
+ struct HREC * hptr, * htemp; // Hash record pointers
+ hptr = unresolved; // Point to unresolved symbols list
+
+ // While unresolved list is valid
+ while (hptr != NULL)
+ {
+ if (ost_add(hptr->h_sym, T_EXT, 0L) == -1)
+ return 1;
+
+ if (vflag > 1)
+ printf("dounresolved(): added %s\n", hptr->h_sym);
-int dounresolved(void) {
- struct HREC *hptr, *htemp; // Hash record pointers
+ htemp = hptr->h_next; // Temporarily get ptr to next record
+ free(hptr); // Free current record
+ hptr = htemp; // Make next record ptr, current
+ }
- hptr = unresolved; // Point to unresolved symbols list
-
- while (hptr != NULL) { // While unresolved list is valid
- if (ost_add(hptr->h_sym, T_EXT, 0L) == -1) return 1;
- htemp = hptr->h_next; // Temporarily get ptr to next record
- free(hptr); // Free current record
- hptr = htemp; // Make next record ptr, current
- }
-
- unresolved = NULL; // Zero unresolved record list
-
- return 0;
+ unresolved = NULL; // Zero unresolved record list
+ return 0;
}
-
-// -------------------------------------------------------------------------------------------------
-// Update Object File TEXT and DATA Segments Based on Relocation Records. Take in an OFILE header
-// and flag (T_TEXT, T_DATA) to process. Return (0) is successful or non-zero (1) if failed.
-// -------------------------------------------------------------------------------------------------
-
-int reloc_segment(struct OFILE *ofile, int flag) {
- char *symtab; // Start of symbol table
- char *symbols; // Start of symbols
- char *sptr; // Start of segment data
- char *rptr; // Start of segment relocation records
- unsigned symidx; // Offset to symbol
- unsigned addr; // Relocation address
- unsigned rflg; // Relocation flags
- unsigned olddata; // Old segment data at reloc address
- unsigned newdata = 0; // New segment data at reloc address
- unsigned pad; // Temporary to calculate phrase padding
- int i; // Iterator
- char sym[SYMLEN]; // String for symbol name/hash search
- int ssidx; // Segment size table index
- unsigned glblreloc; // Global relocation flag
- unsigned absreloc; // Absolute relocation flag
- unsigned relreloc; // Relative relocation flag
- unsigned swcond; // Switch statement condition
- unsigned relocsize; // Relocation record size
-
- // If there is no TEXT relocation data for the selected object file segment then update the COF
- // TEXT segment offset allowing for the phrase padding
- if ((flag == T_TEXT) && !ofile->o_header.absrel.reloc.tsize) {
- pad = ((ofile->o_header.tsize+secalign) & ~secalign); // TEXT segment size plus padding
- textoffset += (ofile->o_header.tsize + (pad - ofile->o_header.tsize));
- if (vflag > 1) { // Verbose mode information
- printf("reloc_segment(%s, TEXT) : No Relocation Data\n", ofile->o_name);
- }
- return 0;
- }
-
- // If there is no DATA relocation data for the selected object file segment then update the COF
- // DATA and BSS segment offsets allowing for the phrase padding
- if ((flag == T_DATA) && !ofile->o_header.absrel.reloc.dsize) {
- pad = ((ofile->o_header.dsize+secalign) & ~secalign); // DATA segment size plus padding
- dataoffset += (ofile->o_header.dsize + (pad - ofile->o_header.dsize));
- pad = ((ofile->o_header.bsize+secalign) & ~secalign); // BSS segment size plus padding
- bssoffset += (ofile->o_header.bsize + (pad - ofile->o_header.bsize));
- if (vflag > 1) { // Verbose mode information
- printf("reloc_segment(%s, DATA) : No Relocation Data\n", ofile->o_name);
- }
- return 0;
- }
-
- // Verbose mode information
- if (vflag > 1) {
- printf("reloc_segment(%s, %s) : Processing Relocation Data\n",
- ofile->o_name, flag == T_DATA ? "DATA" : "TEXT");
- }
-
- // Obtain pointer to start of symbol table
- symtab = (ofile->o_image + 32 + ofile->o_header.tsize + ofile->o_header.dsize +
- ofile->o_header.absrel.reloc.tsize + ofile->o_header.absrel.reloc.dsize);
-
- // Obtain pointer to start of symbols
- symbols = symtab + ofile->o_header.ssize;
-
- // Obtain pointer to start of TEXT segment
- sptr = ofile->o_image + 32;
-
- // Obtain pointer to start of TEXT relocation records
- rptr = sptr + (ofile->o_header.tsize + ofile->o_header.dsize);
-
- relocsize = ofile->o_header.absrel.reloc.tsize;
-
- // Update pointers if DATA relocation records are being processed
- if (flag == T_DATA) {
- sptr += ofile->o_header.tsize; // Start of DATA segment
- rptr += ofile->o_header.absrel.reloc.tsize; // Start of DATA relocation records
- relocsize = ofile->o_header.absrel.reloc.dsize;
- }
-
- // Process each relocation record for the TEXT segment
- for(i = 0; i < (int)relocsize; i += 8) {
- // Obtain both the relocation address and the relocation flags from the object file image
- addr = getlong(rptr);
- rflg = getlong(rptr + 4);
- glblreloc = (rflg & 0x00000010) ? 1 : 0; // Set global relocation flag
- absreloc = (rflg & 0x00000040) ? 1 : 0; // Set absolute relocation flag
- relreloc = (rflg & 0x000000A0) ? 1 : 0; // Set relative relocation flag
-
- // Additional processing required for global relocations
- if (glblreloc) {
- // Obtain the string table index for the relocation symbol, look for it in the globals
- // hash table to obtain information on that symbol. For the hash calculation to work
- // correctly it must be placed in a 'clean' string before looking it up.
- symidx = getlong(symtab + ((rflg >> 8) * 12));
- memset(sym, 0, SYMLEN);
- strcpy(sym, symbols + symidx);
- olddata = newdata = 0; // Initialise old and new segment data
- ssidx = ost_lookup(sym);
- newdata = getlong(ost + ((ssidx-1) * 12) + 8);
- }
-
- // Obtain the existing long word segment data and flip words if the relocation flags
- // indicate it relates to a RISC MOVEI instruction
- olddata = getlong(sptr + addr);
- if (rflg & 0x01) olddata = _SWAPWORD(olddata);
-
- // Process record dependant on segment it relates to; TEXT, DATA or BSS. Construct a new
- // relocated segment long word based on the required segment base address, the segment
- // data offset in the resulting COF file and the offsets from the incoming object file.
- //swcond = glblreloc ? ((hptr->h_type & 0x0E000000) >> 16) : (rflg & 0xFFFFFF00);
- swcond = (rflg & 0xFFFFFF00);
- if (!glblreloc) {
- switch (swcond) {
- case 0x00000200: // Absolute Value
- break;
- case 0x00000400: // TEXT segment relocation record
- if (!glblreloc)
- if (flag == T_TEXT) newdata = tbase + textoffset + olddata;
- else newdata = tbase + dataoffset + olddata;
- break;
- case 0x00000600: // DATA segment relocation record
- if (!glblreloc) newdata = dbase + dataoffset + (olddata - ofile->o_header.tsize);
- break;
- case 0x00000800: // BSS segment relocation record
- if (!glblreloc) newdata = bbase + bssoffset +
- (olddata - (ofile->o_header.tsize + ofile->o_header.dsize));
- break;
- }
- } else {
- if (!relreloc) newdata += olddata;
- }
- // Set absolute (long) or relative (word) address of symbol
- if (absreloc) {
- // Flip the new long word segment data if the relocation record indicated a RISC MOVEI
- // instruction and place the resulting data back in the COF segment
- if (rflg & 0x01) newdata = _SWAPWORD(newdata);
-
- putlong(sptr + addr, newdata);
-
- }
- else if (relreloc) {
- putword(sptr + addr, newdata - tbase - addr - ofile->o_tbase);
- }
-
- rptr += 8; // Point to the next relocation record
- }
-
- // Update the COF segment offset allowing for the phrase padding.
- if (flag == T_TEXT) {
- pad = ((ofile->o_header.tsize+secalign) & ~secalign); // TEXT segment plus padding
- textoffset += (ofile->o_header.tsize + (pad - ofile->o_header.tsize));
- } else {
- pad = ((ofile->o_header.dsize+secalign) & ~secalign); // DATA segment plus padding
- dataoffset += (ofile->o_header.dsize + (pad - ofile->o_header.dsize));
- pad = ((ofile->o_header.bsize+secalign) & ~secalign); // BSS segment plus padding
- bssoffset += (ofile->o_header.bsize + (pad - ofile->o_header.bsize));
- }
-
- return 0; // Return value, should always be zero
+
+
+//
+// Update Object File TEXT and DATA Segments Based on Relocation Records. Take
+// in an OFILE header and flag (T_TEXT, T_DATA) to process. Return (0) is
+// successful or non-zero (1) if failed.
+//
+int reloc_segment(struct OFILE * ofile, int flag)
+{
+ char * symtab; // Start of symbol table
+ char * symbols; // Start of symbols
+ char * sptr; // Start of segment data
+ char * rptr; // Start of segment relocation records
+ unsigned symidx; // Offset to symbol
+ unsigned addr; // Relocation address
+ unsigned rflg; // Relocation flags
+ unsigned olddata; // Old segment data at reloc address
+ unsigned newdata = 0; // New segment data at reloc address
+ unsigned pad; // Temporary to calculate phrase padding
+ int i; // Iterator
+ char sym[SYMLEN]; // String for symbol name/hash search
+ int ssidx; // Segment size table index
+ unsigned glblreloc; // Global relocation flag
+ unsigned absreloc; // Absolute relocation flag
+ unsigned relreloc; // Relative relocation flag
+ unsigned swcond; // Switch statement condition
+ unsigned relocsize; // Relocation record size
+
+ // If there is no TEXT relocation data for the selected object file segment
+ // then update the COF TEXT segment offset allowing for the phrase padding
+ if ((flag == T_TEXT) && !ofile->o_header.absrel.reloc.tsize)
+ {
+ // TEXT segment size plus padding
+ pad = ((ofile->o_header.tsize + secalign) & ~secalign);
+ textoffset += (ofile->o_header.tsize + (pad - ofile->o_header.tsize));
+
+ if (vflag > 1)
+ printf("reloc_segment(%s, TEXT) : No Relocation Data\n", ofile->o_name);
+
+ return 0;
+ }
+
+ // If there is no DATA relocation data for the selected object file segment
+ // then update the COF DATA and BSS segment offsets allowing for the phrase
+ // padding
+ if ((flag == T_DATA) && !ofile->o_header.absrel.reloc.dsize)
+ {
+ // DATA segment size plus padding
+ pad = ((ofile->o_header.dsize + secalign) & ~secalign);
+ dataoffset += (ofile->o_header.dsize + (pad - ofile->o_header.dsize));
+ // BSS segment size plus padding
+ pad = ((ofile->o_header.bsize + secalign) & ~secalign);
+ bssoffset += (ofile->o_header.bsize + (pad - ofile->o_header.bsize));
+
+ if (vflag > 1)
+ printf("reloc_segment(%s, DATA) : No Relocation Data\n", ofile->o_name);
+
+ return 0;
+ }
+
+ // Verbose mode information
+ if (vflag > 1)
+ {
+ printf("reloc_segment(%s, %s) : Processing Relocation Data\n",
+ ofile->o_name, flag == T_DATA ? "DATA" : "TEXT");
+ }
+
+ // Obtain pointer to start of symbol table
+ symtab = (ofile->o_image + 32 + ofile->o_header.tsize + ofile->o_header.dsize
+ + ofile->o_header.absrel.reloc.tsize + ofile->o_header.absrel.reloc.dsize);
+
+ // Obtain pointer to start of symbols
+ symbols = symtab + ofile->o_header.ssize;
+
+ // Obtain pointer to start of TEXT segment
+ sptr = ofile->o_image + 32;
+
+ // Obtain pointer to start of TEXT relocation records
+ rptr = sptr + (ofile->o_header.tsize + ofile->o_header.dsize);
+
+ relocsize = ofile->o_header.absrel.reloc.tsize;
+
+ if (vflag)
+ {
+ printf("RELOCSIZE :: %d Records = %d\n",relocsize,relocsize/8);
+ }
+
+ // Update pointers if DATA relocation records are being processed
+ if (flag == T_DATA)
+ {
+ sptr += ofile->o_header.tsize; // Start of DATA segment
+ rptr += ofile->o_header.absrel.reloc.tsize; // Start of DATA relocation records
+ relocsize = ofile->o_header.absrel.reloc.dsize;
+ }
+
+ // Process each relocation record for the TEXT segment
+ for(i=0; i<(int)relocsize; i+=8)
+ {
+ // Obtain both the relocation address and the relocation flags from the
+ // object file image
+ addr = getlong(rptr);
+ rflg = getlong(rptr + 4);
+ glblreloc = (rflg & 0x00000010 ? 1 : 0); // Set global relocation flag
+ absreloc = (rflg & 0x00000040 ? 1 : 0); // Set absolute relocation flag
+ relreloc = (rflg & 0x000000A0 ? 1 : 0); // Set relative relocation flag
+
+ // Additional processing required for global relocations
+ if (glblreloc)
+ {
+ // Obtain the string table index for the relocation symbol, look
+ // for it in the globals hash table to obtain information on that
+ // symbol. For the hash calculation to work correctly it must be
+ // placed in a 'clean' string before looking it up.
+ symidx = getlong(symtab + ((rflg >> 8) * 12));
+ memset(sym, 0, SYMLEN);
+ strcpy(sym, symbols + symidx);
+ olddata = newdata = 0; // Initialise old and new segment data
+ ssidx = ost_lookup(sym);
+ newdata = getlong(ost + ((ssidx - 1) * 12) + 8);
+ }
+
+ // Obtain the existing long word segment data and flip words if the
+ // relocation flags indicate it relates to a RISC MOVEI instruction
+ olddata = getlong(sptr + addr);
+
+ if (rflg & 0x01)
+ olddata = _SWAPWORD(olddata);
+
+ // Process record dependant on segment it relates to; TEXT, DATA or
+ // BSS. Construct a new relocated segment long word based on the
+ // required segment base address, the segment data offset in the
+ // resulting COF file and the offsets from the incoming object file.
+ //swcond = glblreloc ? ((hptr->h_type & 0x0E000000) >> 16) : (rflg & 0xFFFFFF00);
+ swcond = (rflg & 0xFFFFFF00);
+
+ if (!glblreloc)
+ {
+ switch (swcond)
+ {
+ case 0x00000200: // Absolute Value
+ break;
+ case 0x00000400: // TEXT segment relocation record
+//AARRRGGGGHHHHH! does the else belong to the 1st 'if' or the 2nd?
+// can we trust the indention to tell the truth here???
+// Braces were not here, so if something breaks, try pairing the else to the 1st 'if'...
+ if (!glblreloc)
+ {
+ if (flag == T_TEXT) // Is this a TEXT section record?
+ newdata = tbase + textoffset + olddata;
+ else
+ newdata = tbase + dataoffset + olddata; // Nope, must be DATA section
+ }
+
+ break;
+ case 0x00000600: // DATA segment relocation record
+ if (!glblreloc)
+ newdata = dbase + dataoffset + (olddata - ofile->o_header.tsize);
+
+ break;
+ case 0x00000800: // BSS segment relocation record
+ if (!glblreloc)
+ newdata = bbase + bssoffset
+ + (olddata - (ofile->o_header.tsize + ofile->o_header.dsize));
+
+ break;
+ }
+ }
+ else
+ {
+ if (!relreloc)
+ newdata += olddata;
+ }
+
+ // Set absolute (long) or relative (word) address of symbol
+ if (absreloc)
+ {
+ // Flip the new long word segment data if the relocation record
+ // indicated a RISC MOVEI instruction and place the resulting data
+ // back in the COF segment
+ if (rflg & 0x01)
+ newdata = _SWAPWORD(newdata);
+
+ putlong(sptr + addr, newdata);
+ }
+ else if (relreloc)
+ {
+ putword(sptr + addr, newdata - tbase - addr - ofile->o_tbase);
+ }
+
+ // Shamus: Let's output some info to aid in debugging this crap
+ if (vflag > 1)
+ {
+ char ssiString[128];
+ ssiString[0] = 0;
+
+ if (glblreloc)
+ sprintf(ssiString, " [ssi:%i]", ssidx);
+
+ printf("reloc_segment($%08X): %s, $%08X: $%08X => $%08X%s\n", rflg, (glblreloc ? sym : "(LOCAL)"), addr, olddata, getlong(sptr + addr), ssiString);
+ }
+
+ rptr += 8; // Point to the next relocation record
+ }
+
+ // Update the COF segment offset allowing for the phrase padding.
+ if (flag == T_TEXT)
+ {
+ // TEXT segment plus padding
+ pad = ((ofile->o_header.tsize + secalign) & ~secalign);
+ textoffset += (ofile->o_header.tsize + (pad - ofile->o_header.tsize));
+ }
+ else
+ {
+ // DATA segment plus padding
+ pad = ((ofile->o_header.dsize + secalign) & ~secalign);
+ dataoffset += (ofile->o_header.dsize + (pad - ofile->o_header.dsize));
+ // BSS segment plus padding
+ pad = ((ofile->o_header.bsize + secalign) & ~secalign);
+ bssoffset += (ofile->o_header.bsize + (pad - ofile->o_header.bsize));
+ }
+
+ // Return value, should always be zero
+ return 0;
}
+
//
-// -------------------------------------------------------------------------------------------------
-// Add a path character to the end of string 's' if it doesn't already end with one.
-// The last occurrance of '/' or '\\' in the string is assumed to be the path character.
-// -------------------------------------------------------------------------------------------------
+// Add a path character to the end of string 's' if it doesn't already end with
+// one. The last occurrance of '/' or '\\' in the string is assumed to be the
+// path character.
//
+void pathadd(char * s)
+{
+ // And hope to God that there's enough space in the buffer...
+ char pathchar = 0;
-void pathadd(char *s) {
- char pathchar = 0;
+ while (*s)
+ {
+ if (*s == '/' || *s == '\\')
+ pathchar = *s;
+
+ s++;
+ }
+
+ s--;
- while (*s) {
- if (*s == '/' || *s == '\\') pathchar = *s;
- s++;
- }
- s--;
- if (*s == pathchar) return;
+ if (*s == pathchar)
+ return;
- *++s = pathchar;
- *++s = 0;
+ *++s = pathchar;
+ *++s = 0;
}
+
+//
+// Try to open "name", "name.o", "${libdir}name", "${libdir}name.o". Return the
+// handle of the file successfully opened. p_name is updated to point to a
+// malloc()'ed string which is the name which actually got opened. p_name will
+// return unchanged if the file can't be found.
//
-// -------------------------------------------------------------------------------------------------
-// Try to open "name", "name.o", "${libdir}name", "${libdir}name.o". Return the handle of the file
-// successfully opened. p_name is updated to point to a malloc()'ed string which is the name which
-// actually got opened. p_name will return unchanged if the file can't be found.
-// -------------------------------------------------------------------------------------------------
-//
-
-int tryopen(char **p_name) {
- char *name = *p_name; // Filename
- char *tmpbuf, *lastdot; // Buffer and 'dot' pointers
- int fd, hasdot; // File descriptor and 'has dot' flag
-
- // Note that libdir will be an empty string if there is none specified
- if ((tmpbuf = malloc((long)strlen(name) + strlen(libdir) + 3)) == NULL) {
- printf("tryopen() : out of memory\n");
- return(-1);
- }
- strcpy(tmpbuf, name);
-
- hasdot = ((lastdot = strrchr(tmpbuf, '.')) > strrchr(tmpbuf, '/')) &&
- (lastdot > strrchr(tmpbuf, '\\'));
-
- 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
-
- ok: // What more Atari label use - sigh!!!
-
- 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
+int tryopen(char ** p_name)
+{
+ char * name = * p_name; // Filename
+ char * tmpbuf, * lastdot; // Buffer and 'dot' pointers
+ int fd, hasdot; // File descriptor and 'has dot' flag
+
+ // Note that libdir will be an empty string if there is none specified
+ if ((tmpbuf = malloc((long)strlen(name) + strlen(libdir) + 3)) == NULL)
+ {
+ printf("tryopen() : out of memory\n");
+ return -1;
+ }
+
+ strcpy(tmpbuf, name);
+ hasdot = ((lastdot = strrchr(tmpbuf, '.')) > strrchr(tmpbuf, '/'))
+ && (lastdot > strrchr(tmpbuf, '\\'));
+
+ 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;
+ }
+ }
+
+ // Couldn't open file at all
+ return -1;
+
+// There are worse things... :-P
+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
}
void put_name(struct OFILE * p)
{
int flag = *(p->o_arname);
- printf("%s%s%s", flag ? p->o_arname : "", flag ? ":" : "", p->o_name);
+ printf("%s%s%s", (flag ? (char *)(p->o_arname) : ""), (flag ? ":" : ""), p->o_name);
}
//
int dofile(char * fname, int flag, char * sym)
{
- int fd; // File descriptor
- int temp; // Temporary storage
+ int fd;
+ int temp;
// Verbose information
if (vflag)
// Reached maximum file handles
if (hd == NHANDLES)
{
- if (flush_handles()) return 1;
+ if (ProcessObjectFiles())
+ return 1;
}
// Attempt to open input file
return 1;
}
- // The file is open; save its info in the handle and name arrays
+ // 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()
+ name[hd] = fname; // This is the name from tryopen()
hflag[hd] = flag;
// Include files
if (flag)
{
- temp = strlen(sym); // Get symbol length
+ temp = strlen(sym); // Get symbol length
- // 100 chars is max length of a symbol
+ // 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
+ // 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)
{
}
}
- hd++; // Increment next handle index
- return 0; // No problems
+ // Increment next handle index
+ hd++;
+ // No problems
+ return 0;
}
//
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
+ 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;
symoffset += padsize;
- if (fwrite(padarray, padsize, 1, fd) != 1) // Write padding bytes
+ if (fwrite(padarray, padsize, 1, fd) != 1) // Write padding bytes
return 1;
}
- return 0; // All done
+ return 0;
}
//
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
+ 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)
+ 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
+ fd = fopen(ofile, "wb"); // Attempt to open output file
if (!fd)
- {
- printf("Can't open output file %s\n", ofile); // Error opening output file
+ {
+ printf("Can't open output file %s\n", ofile); // Error opening output file
return 1;
}
// Absolute (COF) header
if (cflag)
{
- tsoff = dsoff = bsoff = 0xA8; // Initialises segment offsets
+ 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
+ // 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
+ 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.
+ // 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)
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 + 40, tbase ); // @TEXT
putlong(himage + 44, dbase ); // @DATA
// Build the TEXT SEC_HDR
- putlong(himage + 48, 0x2E746578 );
+ putlong(himage + 48, 0x2E746578 );
putlong(himage + 52, 0x74000000 ); // ".text"
putlong(himage + 56, tbase ); // TEXT START
putlong(himage + 60, tbase ); // TEXT START
putlong(himage + 84, 0x00000020 ); // SEC_FLAGS: STYP_TEXT
// Build the DATA SEC_HDR
- putlong(himage + 88, 0x2E646174 );
+ putlong(himage + 88, 0x2E646174 );
putlong(himage + 92, 0x61000000 ); // ".data"
putlong(himage + 96, dbase ); // DATA START
putlong(himage + 100, dbase ); // DATA START
putlong(himage + 124, 0x00000040 ); // SEC_FLAGS: STYP_DATA
// Build the BSS SEC_HDR
- putlong(himage + 128, 0x2E627373 );
+ putlong(himage + 128, 0x2E627373 );
putlong(himage + 132, 0x00000000 ); // ".bss"
putlong(himage + 136, bbase ); // BSS START
putlong(himage + 140, bbase ); // BSS START
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 + 18, 0x00000000 ); //
putlong(himage + 22, tbase ); // TEXT base address
putword(himage + 26, 0xFFFF ); // Flags (?)
putlong(himage + 28, dbase ); // DATA base address
if (!cflag)
{
if (!noheaderflag)
- if (fwrite(himage, 36, 1, fd) != 1)
+ if (fwrite(himage, 36, 1, fd) != 1)
goto werror;
}
// Absolute (COF) header
else
{
- if (fwrite(himage, 168, 1, fd) != 1)
+ if (fwrite(himage, 168, 1, fd) != 1)
goto werror;
}
if (vflag > 1)
printf("Writing TEXT Segment of %s\n", otemp->o_name);
- if (fwrite(otemp->o_image + 32, osize, 1, fd) != 1)
+ if (fwrite(otemp->o_image + 32, osize, 1, fd) != 1)
goto werror;
// Pad to required alignment boundary
- if (segmentpad(fd, osize, 0x0000))
+ 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)
+ for(otemp=olist; otemp!=NULL; otemp=otemp->o_next)
{
osize = otemp->o_header.dsize;
goto werror;
// Pad to required alignment boundary
- if (segmentpad(fd, osize, 0))
+ if (segmentpad(fd, osize, 0))
goto werror;
symoffset += osize;
// 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
+ // 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
+ 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
+ value = getlong((ost + (i * 12)) + 8); // Get symbol value
slen = strlen(oststr + index);
// Get symbol string (maximum 8 chars)
break;
}
- putword(symbol + 8, abstype); // Write back new ABS type
- putlong(symbol + 10, value); // Write back value
+ 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
+ // Close the file
if (fclose(fd))
{
printf("Close error on output file %s\n",ofile);
return 1;
}
- else
- return 0;
-werror: // OMG! Why did Atari use these :)
+ return 0;
+
+werror:
printf("Write error on output file %s\n", ofile);
- fclose(fd); // Try to close output file anyway
+ fclose(fd); // Try to close output file anyway
return 1;
}
//
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
+ 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
+ return 0; // Return if no symbols to map
printf("LOAD MAP\n\n");
- // Outer loop for each of the symbol areas to map out;
+ // 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 3: printf("BSS-SEGMENT RELOCATABLE SYMBOLS\n\n"); break;
}
- c = 0; // Initialise column number
+ 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
-
+ 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;
+ c = 0;
}
- // If local symbols not included and the type is local then go to next symbol record
+ // 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
+ case 0:
+ // Non-relocatable symbols
if (type == 0x02000000 || type == 0x03000000)
{
printf("%-8s %c %08X ", symbol, (type & 0x01000000) ? 'G' : 'L', value);
}
break;
- case 1: // TEXT segment relocatable symbols
+ case 1:
+ // TEXT segment relocatable symbols
if (type == 0x04000000 || type == 0x05000000)
{
printf("%-8s %c %08X ", symbol, (type & 0x01000000) ? 'G' : 'L', value);
}
break;
- case 2: // DATA segment relocatble symbols
+ case 2:
+ // DATA segment relocatble symbols
if (type == 0x06000000 || type == 0x07000000)
{
printf("%-8s %c %08X ", symbol, (type & 0x01000000) ? 'G' : 'L', value);
}
break;
- case 3: // BSS segment relocatable symbols
+ case 3:
+ // BSS segment relocatable symbols
if (type == 0x08000000 || type == 0x09000000)
{
printf("%-8s %c %08X ", symbol, (type & 0x01000000) ? 'G' : 'L', value);
printf("\n\n");
}
- return 0; // All done
+ 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);
//
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
+ 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
+ // Initialize cumulative segment sizes
+ textsize = datasize = bsssize = 0;
- // 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
+ // 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)
{
}
else
{
- oprev -> o_next = otemp->o_next;
+ oprev->o_next = otemp->o_next;
}
ohold = otemp;
- free(ohold->o_image);
+
+ if (!ohold->isArchiveFile)
+ 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;
+ 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
+ // Go to next object file list pointer
+ otemp = otemp->o_next;
}
// Update base addresses and create symbols _TEXT_E, _DATA_E and _BSS_E
ost_add("_BSS_E", 0x09000000, tval + textsize + 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
+ // Place each unresolved symbol in the output symbol table
if (dounresolved())
- return NULL;
+ return NULL;
- tptr = 0; // Initialise base addresses
+ tptr = 0; // Initialise base addresses
dptr = 0;
bptr = 0;
{
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;
+ 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))
+
+ // 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);
+ if (ohold->o_image)
+ if (!ohold->isArchiveFile)
+ free(ohold->o_image);
+
+ free(ohold);
}
else
{
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
+ // 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
+ 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
+ hash_free(); // Done with global symbol hash tables
- return (ret ? (unsigned)NULL : header);
+ return (ret ? (struct OHEADER *)NULL : header);
}
//
// Add Symbol to Hash List
//
-int add_to_hlist(struct HREC **hptr, char *sym, struct OFILE *ofile, long value, int type)
+int add_to_hlist(struct HREC ** hptr, char * sym, struct OFILE * ofile, long value, int type)
{
- struct HREC *htemp; // Temporary hash record pointer
+ struct HREC * htemp; // Temporary hash record pointer
int i;
// Attempt to allocate new hash record
return 1;
}
+ // Shamus: Moar testing...
+ if (vflag > 1)
+ {
+ printf("add_to_hlist(): hptr=$%08X, sym=\"%s\", ofile=$%08X, value=$%X, type=$%X\n", hptr, sym, ofile, value, type);
+ }
+
for(i=0; i<SYMLEN; i++)
htemp->h_sym[i] = '\0';
- strcpy(htemp->h_sym, sym); // Populate hash record
+ 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
+ htemp->h_next = *hptr; // Update hash record pointers
*hptr = htemp;
return 0;
add_unresolved(char * sym, struct OFILE * ofile)
{
if (vflag > 1)
- printf("add_unresolved(%s,%s)\n", sym, ofile->o_name);
+ printf("add_unresolved(%s, %s)\n", sym, ofile->o_name);
return add_to_hlist(&unresolved, sym, ofile, 0L, 0);
}
//
-// Generate and Return Hash Value
+// Generate hash value
//
-int dohash(char * s)
+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;
+ 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
+// 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
+ 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
+ memset(symbol, 0, SYMLEN); // Clean string for comparison
strcpy(symbol, sym);
while (hptr != NULL)
{
- if (symcmp(symbol, hptr->h_sym))
+//This is utter failure...
+// if (symcmp(symbol, hptr->h_sym)) <-- left here for giggles :D - LinkoVitch
+ // Return hash pointer if found
+ if (strcmp(symbol, hptr->h_sym) == 0)
return hptr;
- hptr = hptr->h_next; // Return hash pointer if found
+ hptr = hptr->h_next;
}
- return NULL; // Not found in hash table
+ // Symbol was not found in hash table
+ return NULL;
}
//
-// Add Symbol to the Hash Table
+// Add symbol to the hash table
//
int hash_add(char * sym, long type, long value, struct OFILE * ofile)
{
if (vflag > 1)
{
- printf("hash_add(%s,%s,%lx,", sym, ofile->o_name,value);
+ 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);
+ 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
+ // Mismatch: global came first; warn and keep the global one
if (wflag)
{
- printf("Warning: %s: global from ",sym);
+ printf("Warning: %s: global from ", sym);
put_name(hptr->h_ofile);
printf(" used, common from ");
put_name(ofile);
}
else if (iscommon(hptr->h_type) && !iscommon(type))
{
- // Mismatch: common came first; warn and keep the global one
+ // Mismatch: common came first; warn and keep the global one
if (wflag)
{
printf("Warning: %s: global from ", sym);
hptr->h_ofile = ofile;
hptr->h_value = value;
}
+ // They're both global
else if (flag)
- { // They're both global
- // Global exported by another ofile; warn and make this one extern
+ {
+ // Global exported by another ofile; warn and make this one extern
if (wflag)
{
printf("Duplicate symbol %s: ", sym);
putword(sym + 8, ABST_EXTERN);
}
+ // They're both common
else
- { // They're both common
+ {
if (hptr->h_value < value)
{
hptr->h_value = value;
return 0;
}
+
//
-// -------------------------------------------------------------------------------------------------
-// Add the imported symbols from this file to unresolved, and the global and common symbols to the
-// exported hash table.
+// 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
+// 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 (type & T_EXT) { // If this is a global/external
- if ((type - T_EXT)) {
- if (hash_add(symbol, type, value, Ofile)) { // Then add to hash table
- return 1; // Error if addition failed
- }
- } else {
- if ((hptr = lookup(symbol)) != NULL) { // If value is zero and in hash table
- hptr->h_ofile->o_flags |= O_USED; // Mark symbol as used
- } else if (add_unresolved(symbol, Ofile)) { // Otherwise add to unresolved list
- return 1; // Error if addition failed
- }
- }
- }
-
- sfix += 12; // Increment symbol fixup pointer
- nsymbols--; // Decrement num of symbols to process
- }
-
- return 0; // Success loading symbols
+//
+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
+ }
+
+ // Success loading symbols
+ return 0;
}
+
//
-// 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
-
- if ((Ofile = new_ofile()) == NULL) { // Allocate memory for object record ptr
- 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);
- if (strlen(temp) > FNLEN - 1) { // Check filename length
- printf("File name too long: %s\n", temp);
- return 1;
- }
- if (strlen(aname) > FNLEN - 1) { // Check archive name length
- 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;
+// 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;
+ Ofile->isArchiveFile = 0;
+
+ // 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) && wflag)
+ {
+ 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
+// 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
+ 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))
+ if (doobj(plist->o_name, plist->o_image, plist->o_arname, plist->o_flags))
return 1;
ptemp = plist;
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);
+ printf("%s in %s (=$%06X)\n", isglobal(htemp->h_type) ? "global" : "common", htemp->h_ofile->o_name, htemp->h_value);
htemp->h_ofile->o_flags |= O_USED;
//
-// Extract Filename from Path
+// Extract filename from path
//
char * path_tail(char * name)
{
- char * temp = max(strrchr(name,'/'), max(strrchr(name,':'), strrchr(name, 92)));
+ char * temp = strrchr(name, PATH_DELIMITER);
+ // Return what was passed in if path delimiter was not found
if (temp == NULL)
- temp = (name - 1);
+ return name;
return temp + 1;
}
//
-// Add Input File to Processing List
+// Add input file to processing list
//
-int pladd(char * ptr, char * fname)
+int AddToProcessingList(char * ptr, char * fname, uint8_t arFile)
{
if (plist == NULL)
- {
- plist = new_ofile(); // First time object record allocation
- plast = plist; // Update last object record pointer
+ {
+ 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
+ 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
+ {
+ 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);
+ 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
+ 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
+ plast->isArchiveFile = arFile; // Shamus: Temp until can sort out
- return 0; // Return without errors
+ return 0; // Return without errors
}
//
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
+ 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
+ fsize = FileSize(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
+ 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;
}
// Read in binary data
- if (read(handle, ptr+32, fsize) != fsize)
+ if (read(handle, ptr + 32, fsize) != fsize)
{
printf("File read error on %s\n", fname);
close(handle);
return 1;
}
- close(handle); // Close file
+ close(handle);
strcpy(obj_fname[obj_index], path_tail(fname));
- // Build this image's dummy header
- putlong(ptr, 0x00000107); // Magic number
+ // 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
+ 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;
}
else
{
- putlong(ptr+4, 0L); // Text size
- putlong(ptr+8, dsize); // Data size
+ 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
+ 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
+ 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
+ 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)
+ 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
+ sptr = ptr + 32 + dsize + 24; // Set sptr to symbol table size loc
- putlong(sptr, sym1len + 4L); // Size of symbol table
+ putlong(sptr, sym1len + 4L); // Size of symbol table
- sptr = ptr + 32 + dsize + 24 + 4; // Set sptr to symbol table location
+ 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++;
+ 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
+ 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
+ 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
+ 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
+ putlong(sptr, 0L); // Terminating long for object file
- return pladd(ptr, fname);
+ return AddToProcessingList(ptr, fname, 0);
}
// 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)
+int DoObject(char * fname, int fd, char * ptr)
{
- long size; // File size
-
if (ptr == NULL)
- {
- size = FSIZE(fd); // Get size of input object file
+ {
+ long size = FileSize(fd);
// Allocate memory for file data
if ((ptr = malloc(size)) == NULL)
{
printf("Out of memory while processing %s\n", fname);
- close(fd); // Close and error
+ close(fd);
return 1;
}
if (read(fd, ptr, size) != size)
{
printf("File read error on %s\n", fname);
- close(fd); // Close, free memory and error
+ close(fd);
free(ptr);
return 1;
}
- strcpy(obj_fname[obj_index], path_tail(fname)); // SCPCD : get the name of the file instead of all pathname
+ // SCPCD : get the name of the file instead of all pathname
+ strcpy(obj_fname[obj_index], path_tail(fname));
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)
+ // 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);
+ return AddToProcessingList(ptr, fname, 0);
}
-
//
-// Process In Outstanding Object Files
+// Process an ar archive file (*.a)
//
-int flush_handles(void)
+int DoArchive(char * fname, int fd)
{
- int i; // Iterator
- char magic[4]; // Magic header number
- // unsigned test;
-
- for(i = 0; i < (int)hd; i++) { // Process all handles
- if (vflag == 1) { // Verbose mode information
- 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;
- }
- }
-
- for(i = 0; i < (int)hd; i++) { // Free include, symbol & object handles
- free(name[i]);
- if (hflag[i]) {
- free(hsym1[i]);
- free(hsym2[i]);
- }
- }
-
- hd = 0; // Reset next handle indicator
-
- return 0; // Return
+ // Read in the archive file to memory and process
+ long size = FileSize(fd);
+ char * ptr = malloc(size);
+ char * endPtr = ptr + size;
+
+ if (ptr == NULL)
+ {
+ printf("Out of memory while processing %s\n", fname);
+ close(fd);
+ return 1;
+ }
+
+ if (read(fd, ptr, size) != size)
+ {
+ printf("File read error on %s\n", fname);
+ close(fd);
+ free(ptr);
+ return 1;
+ }
+
+ close(fd);
+
+ // Save the pointer for later...
+ arPtr[arIndex++] = ptr;
+ char objName[17];
+ char objSize[11];
+ int i;
+
+ // Loop through all objects in the archive and process them
+ do
+ {
+ objName[16] = objSize[10] = 0;
+
+ for(i=0; i<16; i++)
+ {
+ if (ptr[i] == '/')
+ {
+ objName[i] = 0;
+ break;
+ }
+
+ objName[i] = ptr[i];
+ }
+
+ for(i=0; i<10; i++)
+ {
+ if (ptr[48 + i] == ' ')
+ {
+ objSize[i] = 0;
+ break;
+ }
+
+ objSize[i] = ptr[48 + i];
+ }
+
+ if (objName[0] != 0)
+ {
+ strcpy(obj_fname[obj_index], objName);
+ obj_segsize[obj_index][0] = (getlong(ptr + 60 + 4) + secalign) & ~secalign;
+ obj_segsize[obj_index][1] = (getlong(ptr + 60 + 8) + secalign) & ~secalign;
+ obj_segsize[obj_index][2] = (getlong(ptr + 60 + 12) + secalign) & ~secalign;
+ obj_index++;
+
+ if (AddToProcessingList(ptr + 60, objName, 1))
+ return 1;
+ }
+
+ uint32_t size = atoi(objSize);
+ size += (size & 0x01 ? 1 : 0);
+ ptr += 60 + size;
+ }
+ while (ptr < endPtr);
+
+ return 0;
}
+
//
-// 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 files (*.o, *.a) passed in on the command line
+//
+int ProcessObjectFiles(void)
+{
+ int i; // Iterator
+ char magic[8]; // Magic header number
+
+ // 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/ARCHIVE FILES
+ if (read(handle[i], magic, 4) != 4)
+ {
+ printf("Error reading file %s\n", name[i]);
+ close(handle[i]);
+ return 1;
+ }
+
+ lseek(handle[i], 0L, 0); // Reset to start of input file
+
+ // Look for RMAC/MAC/GCC ($20107) object files
+ if ((getlong(magic) == 0x00000107) || (getlong(magic) == 0x00020107))
+ {
+ // Process input object file
+ if (DoObject(name[i], handle[i], 0L))
+ return 1;
+ }
+ // Otherwise, look for an object archive file
+ else if (strncmp(magic, "!<arch>\0x0A", 8) == 0)
+ {
+ if (DoArchive(name[i], handle[i]))
+ return 1;
+ }
+ else
+ {
+ // Close file and error
+ printf("%s is not a supported object or archive file\n", name[i]);
+ close(handle[i]);
+ return 1;
+ }
+ }
+ else
+ {
+ // INCLUDE FILES
+ // If hflag[i] is 1, include this in the data segment; if 2, put it
+ // 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]);
+ }
+ }
+
+ // Reset next handle indicator
+ hd = 0;
+ return 0;
}
+
//
-// Process in a Link Command File -----------------------------------------
+// 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
-
- if (vflag > 1)
- printf("docmdfile(%s)\n", fname); // Verbose information
-
- // 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;
+ 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 = FileSize(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 -----------------------
+// 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':
+ int i = 1; // Iterator
+ int c; // Command line character
+ char * ifile, * isym; // File name and symbol name for -i
+
+ // Parse through option switches & files
+ while (i < argc)
+ {
+ // Process command line switches
+ if (argv[i][0] == '-')
+ {
+ 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
+
+ // Process command line switch
+ switch (c)
+ {
+ 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 '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();
+ 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++];
+
+ // handle -ii (No truncation)
+ if ((argv[i-3][2] == 'i') || (argv[i-3][2] == 'I'))
+ {
+ if (!cflag)
+ printf("warning: (-ii) COFF format output not specified\n");
+ }
+ // handle -i (Truncation)
+ else
+ {
+ 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;
+
+ // No problems encountered
+ return 0;
}
//
-// Display Version Information --------------------------------------------
+// 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("\nReboot's Linker for Atari Jaguar\n");
+ printf("Copyright (c) 199x Allan K. Pratt, 2014 Reboot\n");
printf("V%i.%i.%i %s (%s)\n\n", MAJOR, MINOR, PATCH, __DATE__, PLATFORM);
}
}
//
-// Display Command Line Help -----------------------------------------------
+// Display Command Line Help
//
void display_help(void)
{
printf(" q: quad phrase (32 bytes)\n");
printf(" -s output only global symbols\n");
printf(" -v set verbose mode\n");
+ printf(" -w show linker warnings\n");
printf(" -z suppress banner\n");
printf("\n");
}
//
-// Application Exit -------------------------------------------------------
+// Application Exit
//
void rln_exit(void)
{
// Wait for return key if requested
if (waitflag)
{
- printf("\nPress the <return> key to continue. ");
+ printf("\nPress the [RETURN] key to continue. ");
fgets(tempbuf, 128, stdin);
}
//
-// Determine Processor Endianess ------------------------------------------
+// Determine Processor Endianess
//
int get_endianess(void)
{
char * p = (char *)&i;
if (p[0] == 1)
- return 0; // LITTLE
+ return ENDIANNESS_LITTLE;
- return 1; // BIG
+ return ENDIANNESS_BIG;
}
//
-// Application Code Starts Here -------------------------------------------
+// Application Code Starts Here
//
int main(int argc, char * argv[])
{
- char * s = NULL; // String pointer for "getenv"
- struct HREC * utemp; // Temporary hash record pointer
- struct OHEADER * header; // Pointer to output header structure
+ char * s = NULL; // String pointer for "getenv"
+ struct HREC * utemp; // Temporary hash record pointer
+ struct OHEADER * header; // Pointer to output header structure
- endian = get_endianess(); // Get processor endianess
- cmdlnexec = argv[0]; // Obtain executable name
+ endian = get_endianess(); // Get processor endianess
+ cmdlnexec = argv[0]; // Obtain executable name
s = getenv("RLNPATH");
- if (s) // Attempt to obtain env variable
- strcpy(libdir, s); // Store it if found
+ if (s) // Attempt to obtain env variable
+ strcpy(libdir, s); // Store it if found
+ // Parse the command line
if (doargs(argc, argv))
- { // Parse the command line
+ {
errflag = 1;
rln_exit();
}
if (!zflag && !vflag)
{
- display_version(); // Display version information
- versflag = 1; // We've dumped the version banner
+ display_version(); // Display version information
+ versflag = 1; // We've dumped the version banner
}
- if (flush_handles())
- { // Process in specified files/objects
+ // Process in specified files/objects
+ if (ProcessObjectFiles())
+ {
errflag = 1;
rln_exit();
}
+ // Remove elements from unresolved list
if (dolist())
- { // Remove elements from unresolved list
+ {
errflag = 1;
rln_exit();
}
+ // Check that there is something to link
if (olist == NULL)
- { // Check that there is something to link
-// printf("No object files to link.\n\n");
-// errflag = 1;
+ {
display_help();
rln_exit();
}
+ // Report unresolved externals
if (unresolved != NULL)
- { // Report unresolved externals
+ {
printf("UNRESOLVED SYMBOLS\n");
+ // Don't list them if two -u's or more
if (uflag < 2)
- { // Don't list them if two -u's or more
+ {
utemp = unresolved;
while (utemp != NULL)
{
- printf("\t%s (",utemp->h_sym);
- put_name(utemp->h_ofile);
- printf(")\n");
- utemp = utemp->h_next;
+ printf("\t%s (",utemp->h_sym);
+ put_name(utemp->h_ofile);
+ printf(")\n");
+ utemp = utemp->h_next;
}
}
}
}
+ // Make one output file from input objs
if ((header = make_ofile()) == NULL)
- { // Make one output file from input objs
+ {
errflag = 1;
rln_exit();
}
+ // Partial linking
if (pflag)
- { // Partial linking
+ {
printf("TO DO:Partial linking\n");
errflag = 1;
}
+ // Relocatable linking
else if (!aflag)
- { // Relocatable linking
+ {
printf("TO DO:Relocatable linking\n");
errflag = 1;
}
+ // Absolute linking
else
- { // Absolute linking
+ {
if (vflag)
{
printf("Absolute linking ");
if (cflag)
- printf("(COF)\n");
+ printf("(COF)\n");
else
- printf("(ABS)\n");
+ printf("(ABS)\n");
}
if (vflag > 1)
- printf("Header magic is 0x%04X\n", (unsigned int)header->magic);
+ printf("Header magic is 0x%04X\n", (unsigned int)header->magic);
if (write_ofile(header))
- errflag = 1;
+ errflag = 1;
}
- if (mflag) // Display the loaded symbols map
+ // Display the loaded symbols map
+ if (mflag)
if (write_map(header))
errflag = 1;
+ // Display segment size summary
if (vflag)
- { // Display segment size summary
+ {
printf("\n");
printf("+---------+----------+----------+----------+\n");
printf("| Segment | TEXT | DATA | BSS |\n");
printf("+---------+----------+----------+----------+\n\n");
}
- free(header); // Free allocated memory
- rln_exit(); // Perform application exit
+//printf("BIG_ENDIAN = %i, LITTLE_ENDIAN = %i\n", BIG_ENDIAN, LITTLE_ENDIAN);
+
+ free(header);
+ rln_exit();
}
+
projects / rln / blobdiff