//
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
+ 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
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++)
- { // Search for object file name
+ {
if (!strcmp(ofile->o_name, obj_fname[j]))
{
ssidx = j; // Object file name found
// 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.
+ // 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);
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
+ // 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
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 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)
}
}
- // Process and update the value dependant on whether the symbol is a debug symbol or not
+ // 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)
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.
+ {
+ // 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
value = bbase + bsegoffset + value;
else
value = bbase + bsegoffset
- +(value - (ofile->o_header.tsize + ofile->o_header.dsize));
+ + (value - (ofile->o_header.tsize + ofile->o_header.dsize));
putlong(symptr + 8, value);
break;
}
}
- dosymi++; // Increment dosym() processsing
+ // Increment dosym() processsing
+ dosymi++;
+
return 0;
}
if (ost_add(hptr->h_sym, T_EXT, 0L) == -1)
return 1;
-//printf("dounresolved(): added %s\n",hptr->h_sym);
+ if (vflag > 1)
+ printf("dounresolved(): added %s\n", hptr->h_sym);
+
htemp = hptr->h_next; // Temporarily get ptr to next record
free(hptr); // Free current record
hptr = htemp; // Make next record ptr, current
// 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
}
printf("Close error on output file %s\n",ofile);
return 1;
}
- else
- return 0;
-werror: // OMG! Why did Atari use these :)
+ return 0;
+
+werror: // OMG! Why did Atari use these :)
printf("Write error on output file %s\n", ofile);
- fclose(fd); // Try to close output file anyway
+ fclose(fd); // Try to close output file anyway
return 1;
}
//
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
+ textsize = datasize = bsssize = 0; // Initialise cumulative segment sizes
- // For each object file, accumulate the sizes of the segments but remove those
- // object files which are unused
- oprev = NULL; // Init previous obj file list ptr
- otemp = olist; // Set temp pointer to object file list
+ // 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)
{
}
}
- otemp = otemp->o_next; // Go to next object file list pointer
+ otemp = otemp->o_next; // Go to next object file list pointer
}
// Update base addresses and create symbols _TEXT_E, _DATA_E and _BSS_E
if (dounresolved())
return NULL;
- tptr = 0; // Initialise base addresses
+ tptr = 0; // Initialise base addresses
dptr = 0;
bptr = 0;
//
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
// Shamus: Moar testing...
if (vflag > 1)
{
- printf("add_to_hlist(): hptr=$%08X, sym=\"%s\", ofile=$%08X, value=%li, type=%i", (unsigned int)hptr, sym, (unsigned int)ofile, value, type);
+ printf("add_to_hlist(): hptr=$%08X, sym=\"%s\", ofile=$%08X, value=$%X, type=$%X\n", (unsigned int)hptr, sym, (unsigned int)ofile, value, type);
}
for(i=0; i<SYMLEN; i++)
htemp->h_sym[i] = '\0';
- strcpy(htemp->h_sym, sym); // Populate hash record
+ 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;
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"));
}
return add_to_hlist(&htable[dohash(sym)], sym, ofile, value, type);
}
-
// Already there!
if (iscommon(type) && !iscommon(hptr->h_type))
{
// Mismatch: global came first; warn and keep the global one
if (wflag)
{
- printf("Warning: %s: global from ",sym);
+ printf("Warning: %s: global from ", sym);
put_name(hptr->h_ofile);
printf(" used, common from ");
put_name(ofile);
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
if (wflag)
{
putword(sym + 8, ABST_EXTERN);
}
+ // They're both common
else
- { // They're both common
+ {
if (hptr->h_value < value)
{
hptr->h_value = value;
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