macross/initialize.c
2016-01-21 22:02:21 +01:00

579 lines
14 KiB
C

/*
* Copyright (c) 1987 Fujitsu
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
/*
initialize.c -- Routines to get things going for the Macross assembler
Chip Morningstar -- Lucasfilm Ltd.
6-November-1984
*/
#include "macrossTypes.h"
#include "macrossGlobals.h"
#define isAlphaNumeric(c) (alphaNumericCharacterTable[c])
extern int yydebug;
static fileNameListType *bottomOfInputFileStack;
static char *outputFileName;
void
chokePukeAndDie()
{
unlink(outputFileName);
exit(1);
}
void
initializeStuff(argc, argv)
int argc;
char *argv[];
{
int i;
int j;
char **args;
char *arg;
int outputFilesFound;
int listFilesFound;
int symbolDumpFilesFound;
char *listFileName;
char *symbolDumpFileName;
bool dontUnlinkTempFiles;
void createHashTables();
void installBuiltInFunctions();
void installPredefinedSymbols();
void installCommandLineDefineSymbols();
void openFirstInputFile();
void queueInputFile();
void noteCommandLineDefine();
for (i=0; i<128; i++) {
lowerCaseCharacterTable[i] = i;
alphabeticCharacterTable[i] = FALSE;
numericCharacterTable[i] = FALSE;
alphaNumericCharacterTable[i] = FALSE;
}
for (i='A'; i<='Z'; i++) {
lowerCaseCharacterTable[i] = i - 'A' + 'a';
alphabeticCharacterTable[i] = TRUE;
alphabeticCharacterTable[i - 'A' + 'a'] = TRUE;
alphaNumericCharacterTable[i] = TRUE;
alphaNumericCharacterTable[i - 'A' + 'a'] = TRUE;
}
alphabeticCharacterTable['_'] = TRUE;
alphaNumericCharacterTable['_'] = TRUE;
for (i='0'; i<='9'; i++) {
numericCharacterTable[i] = TRUE;
alphaNumericCharacterTable[i] = TRUE;
}
outputFilesFound = 0;
listFilesFound = 0;
symbolDumpFilesFound = 0;
outputFileName = DEFAULT_OBJECT_FILE_NAME;
dontUnlinkTempFiles = FALSE;
produceLinkableObject = FALSE;
currentFileName = "<command line>"; /* for error messages... */
currentLineNumber = 1; /* ...during startup */
cumulativeLineNumber = 1;
nextEnvironmentNumber = GLOBAL_ENVIRONMENT_NUMBER;
currentEnvironment = NULL;
pushEnvironment(globalEnvironment);
beneathFunction = FALSE;
includeNestingDepth = 0;
macroOrFunctionNestingDepth = 0;
macroCallDepth = 0;
tabCount = 1;
statementEvaluationDepth = 0;
structNestingDepth = 0;
performingFixups = FALSE;
generatingFixup = FALSE;
finishOperand = FALSE;
unknownSymbolTag = UNKNOWN_SYMBOL;
haveUserStartAddress = FALSE;
fixupStartAddress = FALSE;
currentLabelTagNumber = 0;
currentLocalVariableList = NULL;
inputFileStack = bottomOfInputFileStack = NULL;
listingControlCounter = 0;
nextLabelTagNumber = 1;
commandLineDefines = NULL;
showAllSymbolsFlag = FALSE;
backwardsCompatibleIfFlag = FALSE;
debug = FALSE;
yydebug = FALSE;
emitPrint = FALSE;
freeFlag = TRUE;
freturnExit = FALSE;
listingOn = FALSE;
expandMacros = FALSE;
standaloneExpansionFlag = FALSE;
terseErrorMessages = FALSE;
lastErrorLine = -1;
lastErrorFile = NULL;
symbolTableDumpOn = 0;
positionIndependentCodeMode = FALSE;
hackFlag = 0;
args = argv + 1;
for (i=1; i<argc; i++) {
arg = *args++;
if (*arg != '-') {
if (!isDotMName(arg)) {
fatalError(FILE_NAME_IS_NOT_MACROSS_SOURCE_ERROR,
arg);
}
queueInputFile(arg);
continue;
}
for (j=1; arg[j]!='\0'; j++) switch (arg[j]) {
case 'a':
showAllSymbolsFlag = TRUE;
continue;
case 'B':
backwardsCompatibleIfFlag = TRUE;
continue;
case 'c':
produceLinkableObject = TRUE;
continue;
case 'd':
debug = TRUE;
continue;
case 'D':
if (++i >= argc) {
fatalError(NO_DASH_D_FILE_NAME_ERROR);
} else {
noteCommandLineDefine(*args++);
}
continue;
case 'e':
emitPrint = TRUE;
continue;
case 'g':
freeFlag = FALSE;
continue;
case 'l':
if (++i >= argc) {
fatalError(NO_LIST_FILE_NAME_ERROR);
} else {
if (isDotMName(*args)) {
fatalError(LIST_FILE_NAME_IS_MACROSS_SOURCE_ERROR,
*args);
}
listFileName = *args++;
listFilesFound++;
}
listingOn = TRUE;
continue;
case 'm':
expandMacros = TRUE;
continue;
case 'o':
if (++i >= argc) {
fatalError(NO_DASH_O_FILE_NAME_ERROR);
} else {
if (isDotMName(*args)) {
fatalError(OUTPUT_FILE_NAME_IS_MACROSS_SOURCE_ERROR,
*args);
}
outputFileName = *args++;
outputFilesFound++;
}
continue;
case 'p':
positionIndependentCodeMode = TRUE;
continue;
case 's':
case 'S':
case 'h':
case 'H':
if (++i >= argc) {
fatalError(NO_SYMBOL_DUMP_FILE_NAME_ERROR, arg[j]);
} else {
if (isDotMName(*args)) {
fatalError(SYMBOL_DUMP_FILE_NAME_IS_MACROSS_SOURCE_ERROR,
*args);
}
symbolDumpFileName = *args++;
symbolDumpFilesFound++;
}
if (arg[j] == 'h') {
hackFlag = 1;
symbolTableDumpOn = 1;
} else if (arg[j] == 'H') {
hackFlag = 2;
symbolTableDumpOn = 1;
} else {
symbolTableDumpOn = arg[j]=='s' ? 1 : 2;
}
continue;
case 't':
terseErrorMessages = TRUE;
continue;
case 'u':
dontUnlinkTempFiles = TRUE;
continue;
case 'v':
printVersion();
continue;
case 'Y':
yydebug = TRUE;
continue;
default:
warning(BAD_COMMAND_LINE_FLAG_ERROR, arg[j]);
continue;
}
}
openFirstInputFile();
if (outputFilesFound > 1) {
warning(MORE_THAN_ONE_OUTPUT_FILE_ERROR);
} else if ((objectFileOutput = fopen(outputFileName, "w"))==NULL) {
fatalSystemError(CANT_OPEN_OBJECT_FILE_ERROR, outputFileName);
}
if (listFilesFound > 1) {
warning(MORE_THAN_ONE_LIST_FILE_ERROR);
} else if (listFilesFound == 1) {
if (strcmp(listFileName, "-") == 0) {
listFileOutput = stdout;
} else if ((listFileOutput = fopen(listFileName, "w"))==NULL){
fatalSystemError(CANT_OPEN_LIST_FILE_ERROR, listFileName);
}
}
if (symbolDumpFilesFound > 1) {
warning(MORE_THAN_ONE_SYMBOL_DUMP_FILE_ERROR);
} else if (symbolDumpFilesFound == 1) {
if (strcmp(symbolDumpFileName, "-") == 0) {
symbolDumpFileOutput = stdout;
} else if ((symbolDumpFileOutput = fopen(symbolDumpFileName,
"w"))==NULL) {
fatalSystemError(CANT_OPEN_SYMBOL_DUMP_FILE_ERROR, symbolDumpFileName);
}
}
expressionReferenceList[0] = expressionReferenceList[1] = NULL;
numberOfReferencesInList[0] = numberOfReferencesInList[1] = 0;
externalFunctionList = endOfExternalFunctionList = NULL;
externalFunctionCount = 0;
currentLocationCounter.kindOfValue = RELOCATABLE_VALUE;
currentLocationCounter.value = 0;
targetOffset = 0;
currentCodeMode = RELOCATABLE_BUFFER;
relocatableHighWaterMark = -1;
codeBreakList = NULL;
lastCodeBreak = NULL;
reservationList = NULL;
for (i=0; i<HASH_TABLE_SIZE; i++) {
macroTable[i] = NULL;
opcodeTable[i] = NULL;
symbolTable[i] = NULL;
keywordTable[i] = NULL;
conditionTable[i] = NULL;
}
absoluteCodeRegion.regionStartAddress = relocatableCodeRegion.
regionStartAddress = 0xFFFF + 1;
absoluteCodeRegion.regionEndAddress = relocatableCodeRegion.
regionEndAddress = -1;
for (i=0; i<CODE_BUFFERS_IN_ADDRESS_SPACE; i++) {
absoluteCodeRegion.codeSegments[i] = NULL;
relocatableCodeRegion.codeSegments[i] = NULL;
}
emptyBuffer = typeAlloc(codeBufferType);
for (i=0; i<CODE_BUFFER_SIZE; i++)
(*emptyBuffer)[i] = 0;
createHashTables();
initializeLexDispatchTable();
installBuiltInFunctions();
installPredefinedSymbols();
installCommandLineDefineSymbols();
if (listingOn) {
if ((saveFileForPass2 = fopen(mktemp(pass2SourceFileName),
"w+")) == NULL) {
fatalSystemError(UNABLE_TO_OPEN_PASS_2_FILE_ERROR,
pass2SourceFileName);
}
if (!dontUnlinkTempFiles)
unlink(pass2SourceFileName); /* will take effect on
program exit */
if ((indexFileForPass2 = fopen(mktemp(pass2IndexFileName),
"w+")) == NULL) {
fatalSystemError(UNABLE_TO_OPEN_PASS_2_FILE_ERROR,
pass2IndexFileName);
}
if (!dontUnlinkTempFiles)
unlink(pass2IndexFileName); /* will take effect on
program exit */
if (expandMacros) {
if ((macroFileForPass2 = fopen(mktemp(
pass2MacroExpansionFileName),"w+")) == NULL) {
fatalSystemError(
UNABLE_TO_OPEN_PASS_2_FILE_ERROR,
pass2MacroExpansionFileName);
}
if (!dontUnlinkTempFiles)
unlink(pass2MacroExpansionFileName); /* will
take effect on program exit */
} else {
macroFileForPass2 = fopen("/dev/null", "w+");
}
} else {
if (expandMacros) {
warning(MACRO_EXPANSION_WITHOUT_LISTING_ERROR);
expandMacros = FALSE;
}
}
}
void
installBuiltInFunctions()
{
int i;
symbolTableEntryType *newFunction;
symbolTableEntryType *lookupOrEnterSymbol();
valueType *newValue();
for (i=0; builtInFunctionTable[i].functionName!=NULL; i++) {
newFunction = lookupOrEnterSymbol(builtInFunctionTable[i].
functionName, BUILT_IN_FUNCTION_SYMBOL);
newFunction->context->value =newValue(BUILT_IN_FUNCTION_VALUE,
i, EXPRESSION_OPND);
if (builtInFunctionTable[i].isSpecialFunction)
newFunction->context->attributes |=
SPECIAL_FUNCTION_ATT;
}
}
void
installPredefinedSymbols()
{
int i;
symbolTableEntryType *newSymbol;
symbolTableEntryType *lookupOrEnterSymbol();
valueType *newValue();
for (i=0; predefinedSymbolTable[i].symbolName!=NULL; i++) {
newSymbol = lookupOrEnterSymbol(predefinedSymbolTable[i].
symbolName, DEFINE_SYMBOL);
newSymbol->context->value = newValue(ABSOLUTE_VALUE,
predefinedSymbolTable[i].symbolValue,
EXPRESSION_OPND);
newSymbol->context->attributes |= DEFINED_VARIABLE_ATT;
}
}
void
installCommandLineDefineSymbols()
{
int i;
symbolTableEntryType *newSymbol;
symbolTableEntryType *lookupOrEnterSymbol();
valueType *newValue();
while (commandLineDefines != NULL) {
newSymbol = lookupOrEnterSymbol(commandLineDefines->name,
DEFINE_SYMBOL);
newSymbol->context->value = newValue(ABSOLUTE_VALUE,
commandLineDefines->value, EXPRESSION_OPND);
newSymbol->context->attributes |= DEFINED_VARIABLE_ATT;
commandLineDefines = commandLineDefines->nextDefine;
}
}
void
createHashTables()
{
opcodeTableEntryType *newOpcodeEntry;
keywordTableEntryType *newKeywordEntry;
conditionTableEntryType *newConditionEntry;
newOpcodeEntry = theOpcodes;
while (newOpcodeEntry->mnemonic != NULL)
hashStringEnter(newOpcodeEntry++, opcodeTable);
newKeywordEntry = theKeywords;
while (newKeywordEntry->string != NULL)
hashStringEnter(newKeywordEntry++, keywordTable);
newConditionEntry = theConditions;
while (newConditionEntry->string != NULL)
hashStringEnter(newConditionEntry++, conditionTable);
}
void
queueInputFile(name)
char *name;
{
fileNameListType *newFileName;
newFileName = typeAlloc(fileNameListType);
newFileName->name = name;
newFileName->fildes = NULL;
newFileName->openFlag = FALSE;
newFileName->nextFileName = NULL;
newFileName->lineNumber = 1;
if (inputFileStack == NULL) {
inputFileStack = bottomOfInputFileStack = newFileName;
} else {
bottomOfInputFileStack->nextFileName = newFileName;
bottomOfInputFileStack = newFileName;
}
}
void
openFirstInputFile()
{
if (inputFileStack == NULL) {
inputFileStack = typeAlloc(fileNameListType);
inputFileStack->name = "<standard input>";
inputFileStack->fildes = stdin;
inputFileStack->openFlag = TRUE;
inputFileStack->lineNumber = 1;
inputFileStack->nextFileName = NULL;
} else {
if ((inputFileStack->fildes = fopen(inputFileStack->name,
"r")) == NULL) {
fatalSystemError(UNABLE_TO_OPEN_INPUT_FILE_ERROR,
inputFileStack->name);
} else {
inputFileStack->openFlag = TRUE;
}
}
input = inputFileStack->fildes;
currentLineNumber = inputFileStack->lineNumber;
currentFileName = inputFileStack->name;
currentOperandNumber = 0;
}
bool
isDotMName(fileName)
stringType *fileName;
{
int length;
length = strlen(fileName);
return(length >= 2 && fileName[length - 1] == 'm' &&
fileName[length - 2] == '.');
}
bool
parseCommandLineDefine(arg, name, value)
char *arg;
char **name;
int *value;
{
char *ptr;
char c;
int base;
int start;
ptr = arg;
while ((c = *ptr++) && (ptr-arg)<MAX_NAME_SIZE && isAlphaNumeric(c))
;
--ptr;
if (c=='\0') {
*value = 1;
} else if (c == '=') {
*ptr++ = '\0';
if (ptr[0] != '0') {
base = 10;
start = 0;
} else if (ptr[1]=='b' || ptr[1]=='B') {
base = 2;
start = 2;
} else if (ptr[1]=='q' || ptr[1]=='Q') {
base = 4;
start = 2;
} else if (ptr[1]=='x' || ptr[1]=='X') {
base = 16;
start = 2;
} else {
base = 8;
start = 1;
}
*value = fancyAtoI(&ptr[start], base);
} else {
error(BAD_COMMAND_LINE_DEFINE_ERROR, arg);
*name = NULL;
*value = 0;
return(FALSE);
}
*name = arg;
return(TRUE);
}
void
noteCommandLineDefine(arg)
char *arg;
{
char *name;
int value;
commandLineDefineType *newCommandLineDefine;
bool parseCommandLineDefine();
if (parseCommandLineDefine(arg, &name, &value)) {
newCommandLineDefine = typeAlloc(commandLineDefineType);
newCommandLineDefine->name = name;
newCommandLineDefine->value = value;
newCommandLineDefine->nextDefine = commandLineDefines;
commandLineDefines = newCommandLineDefine;
}
}