void SymbolMap::AddData(u32 address, u32 size, DataType type, int moduleIndex) {
lock_guard guard(lock_);
if (moduleIndex == -1) {
moduleIndex = GetModuleIndex(address);
}
// Is there an existing one?
u32 relAddress = GetModuleRelativeAddr(address, moduleIndex);
auto symbolKey = std::make_pair(moduleIndex, relAddress);
auto existing = data.find(symbolKey);
if (existing == data.end()) {
// Fall back: maybe it's got moduleIndex = 0.
existing = data.find(std::make_pair(0, address));
}
if (existing != data.end()) {
existing->second.size = size;
existing->second.type = type;
if (existing->second.module != moduleIndex) {
DataEntry entry = existing->second;
entry.module = moduleIndex;
entry.start = relAddress;
data.erase(existing);
data[symbolKey] = entry;
}
// Refresh the active item if it exists.
auto active = activeData.find(address);
if (active != activeData.end() && active->second.module == moduleIndex) {
activeData.erase(active);
activeData.insert(std::make_pair(address, existing->second));
}
} else {
DataEntry entry;
entry.start = relAddress;
entry.size = size;
entry.type = type;
entry.module = moduleIndex;
data[symbolKey] = entry;
if (IsModuleActive(moduleIndex)) {
activeData.insert(std::make_pair(address, entry));
}
}
}
void SymbolMap::AddLabel(const char* name, u32 address, int moduleIndex) {
lock_guard guard(lock_);
if (moduleIndex == -1) {
moduleIndex = GetModuleIndex(address);
}
// Is there an existing one?
u32 relAddress = GetModuleRelativeAddr(address, moduleIndex);
auto symbolKey = std::make_pair(moduleIndex, relAddress);
auto existing = labels.find(symbolKey);
if (existing == labels.end()) {
// Fall back: maybe it's got moduleIndex = 0.
existing = labels.find(std::make_pair(0, address));
}
if (existing != labels.end()) {
// We leave an existing label alone, rather than overwriting.
// But we'll still upgrade it to the correct module / relative address.
if (existing->second.module != moduleIndex) {
LabelEntry label = existing->second;
label.addr = relAddress;
label.module = moduleIndex;
labels.erase(existing);
labels[symbolKey] = label;
// Refresh the active item if it exists.
auto active = activeLabels.find(address);
if (active != activeLabels.end() && active->second.module == moduleIndex) {
activeLabels.erase(active);
activeLabels.insert(std::make_pair(address, existing->second));
}
}
} else {
LabelEntry label;
label.addr = relAddress;
label.module = moduleIndex;
strncpy(label.name, name, 128);
label.name[127] = 0;
labels[symbolKey] = label;
if (IsModuleActive(moduleIndex)) {
activeLabels.insert(std::make_pair(address, label));
}
}
}
u32 GetSyscallOp(const char *moduleName, u32 nib)
{
int modindex = GetModuleIndex(moduleName);
if (modindex != -1)
{
int funcindex = GetFuncIndex(modindex, nib);
if (funcindex != -1)
{
return (0x0000000c | (modindex<<18) | (funcindex<<6));
}
else
{
return (0x0003FFCC | (modindex<<18)); // invalid syscall
}
}
else
{
ERROR_LOG(HLE, "Unknown module %s!", moduleName);
return (0x0003FFCC); // invalid syscall
}
}
bool WriteSyscall(const char *moduleName, u32 nib, u32 address)
{
if (nib == 0)
{
WARN_LOG_REPORT(HLE, "Wrote patched out nid=0 syscall (%s)", moduleName);
Memory::Write_U32(MIPS_MAKE_JR_RA(), address); //patched out?
Memory::Write_U32(MIPS_MAKE_NOP(), address+4); //patched out?
return true;
}
int modindex = GetModuleIndex(moduleName);
if (modindex != -1)
{
Memory::Write_U32(MIPS_MAKE_JR_RA(), address); // jr ra
Memory::Write_U32(GetSyscallOp(moduleName, nib), address + 4);
return true;
}
else
{
ERROR_LOG_REPORT(HLE, "Unable to write unknown syscall: %s/%08x", moduleName, nib);
return false;
}
}
u32 GetSyscallOp(const char *moduleName, u32 nib) {
// Special case to hook up bad imports.
if (moduleName == NULL) {
return (0x03FFFFCC); // invalid syscall
}
int modindex = GetModuleIndex(moduleName);
if (modindex != -1) {
int funcindex = GetFuncIndex(modindex, nib);
if (funcindex != -1) {
return (0x0000000c | (modindex<<18) | (funcindex<<6));
} else {
INFO_LOG(HLE, "Syscall (%s, %08x) unknown", moduleName, nib);
return (0x0003FFCC | (modindex<<18)); // invalid syscall
}
}
else
{
ERROR_LOG(HLE, "Unknown module %s!", moduleName);
return (0x03FFFFCC); // invalid syscall
}
}
ULONG NextAsmToken (PULONG pvalue)
{
ULONG base;
UCHAR chSymbol[SYMBOLSIZE];
UCHAR chPreSym[9];
ULONG cbSymbol = 0;
UCHAR fNumber = TRUE;
UCHAR fSymbol = TRUE;
UCHAR fForceReg = FALSE;
ULONG errNumber = 0;
UCHAR ch;
UCHAR chlow;
UCHAR chtemp;
UCHAR limit1 = '9';
UCHAR limit2 = '9';
UCHAR fDigit = FALSE;
ULONG value = 0;
ULONG tmpvalue;
ULONG index;
CHAR iModule;
PIMAGE_INFO pImage;
base = baseDefault;
// skip leading white space
chlow = (UCHAR)PeekAsmChar();
chlow = (UCHAR)tolower(chlow);
pchAsmLine++;
// test for special character operators and register variable
switch (chlow) {
case '\0':
pchAsmLine--;
return ASM_EOL_CLASS;
case ',':
return ASM_COMMA_CLASS;
case '+':
*pvalue = ASM_ADDOP_PLUS;
return ASM_ADDOP_CLASS;
case '-':
*pvalue = ASM_ADDOP_MINUS;
return ASM_ADDOP_CLASS;
case '*':
*pvalue = ASM_MULOP_MULT;
return ASM_MULOP_CLASS;
case '/':
*pvalue = ASM_MULOP_DIVIDE;
return ASM_MULOP_CLASS;
case ':':
return ASM_COLNOP_CLASS;
case '(':
return ASM_LPAREN_CLASS;
case ')':
return ASM_RPAREN_CLASS;
case '[':
return ASM_LBRACK_CLASS;
case ']':
return ASM_RBRACK_CLASS;
case '@':
fForceReg = TRUE;
chlow = (UCHAR)*pchAsmLine++;
chlow = (UCHAR)tolower(chLow);
break;
case '.':
return ASM_DOTOP_CLASS;
case '\'':
for (index = 0; index < 5; index++) {
ch = *pchAsmLine++;
if (ch == '\'' || ch == '\0')
break;
value = (value << 8) + (ULONG)ch;
}
if (ch == '\0' || index == 0 || index == 5) {
pchAsmLine--;
*pvalue = SYNTAX;
return ASM_ERROR_CLASS;
}
pchAsmLine++;
*pvalue = value;
return ASM_NUMBER_CLASS;
}
// if first character is a decimal digit, it cannot
// be a symbol. leading '0' implies octal, except
// a leading '0x' implies hexadecimal.
if (chlow >= '0' && chlow <= '9') {
if (fForceReg) {
*pvalue = SYNTAX;
return ASM_ERROR_CLASS;
}
fSymbol = FALSE;
if (chlow == '0') {
ch = *pchAsmLine++;
chlow = (UCHAR)tolower(ch);
if (chlow == 'x') {
base = 16;
ch = *pchAsmLine++;
chlow = (UCHAR)tolower(ch);
}
else if (chlow == 'n') {
base = 10;
ch = *pchAsmLine++;
chlow = (UCHAR)tolower(ch);
}
else {
base = 8;
fDigit = TRUE;
}
}
}
// a number can start with a letter only if base is
// hexadecimal and it is a hexadecimal digit 'a'-'f'.
else if ((chlow < 'a' && chlow > 'f') || base != 16)
fNumber = FALSE;
// set limit characters for the appropriate base.
if (base == 8)
limit1 = '7';
if (base == 16)
limit2 = 'f';
// perform processing while character is a letter,
// digit, or underscore.
while ((chlow >= 'a' && chlow <= 'z') ||
(chlow >= '0' && chlow <= '9') || (chlow == '_')) {
// if possible number, test if within proper range,
// and if so, accumulate sum.
if (fNumber) {
if ((chlow >= '0' && chlow <= limit1) ||
(chlow >= 'a' && chlow <= limit2)) {
fDigit = TRUE;
tmpvalue = value * base;
if (tmpvalue < value)
errNumber = OVERFLOW;
chtemp = (UCHAR)(chlow - '0');
if (chtemp > 9)
chtemp -= 'a' - '0' - 10;
value = tmpvalue + (ULONG)chtemp;
if (value < tmpvalue)
errNumber = OVERFLOW;
}
else {
fNumber = FALSE;
errNumber = SYNTAX;
}
}
if (fSymbol) {
if (cbSymbol < 9)
chPreSym[cbSymbol] = chlow;
if (cbSymbol < SYMBOLSIZE - 1)
chSymbol[cbSymbol++] = ch;
}
ch = *pchAsmLine++;
chlow = (UCHAR)tolower(ch);
}
// back up pointer to first character after token.
pchAsmLine--;
if (cbSymbol < 9)
chPreSym[cbSymbol] = '\0';
// if fForceReg, check for register name and return
// success or failure
if (fForceReg)
if ((index = GetAsmReg(chPreSym, pvalue)) != 0) {
if (index == ASM_REG_SEGMENT)
if (PeekAsmChar() == ':') {
pchAsmLine++;
index = ASM_SEGOVR_CLASS;
}
return index; // class type returned by GetAsmReg
}
else {
*pvalue = BADREG;
return ASM_ERROR_CLASS;
}
// next test for reserved word and symbol string
if (fSymbol) {
// if possible symbol, check lowercase string in chPreSym
// for text operator or register name.
// otherwise, return symbol value from name in chSymbol.
for (index = 0; index < RESERVESIZE; index++)
if (!strcmp(chPreSym, AsmReserved[index].pchRes)) {
*pvalue = AsmReserved[index].valueRes;
return AsmReserved[index].valueRes & ASM_CLASS_MASK;
}
// start processing string as symbol
chSymbol[cbSymbol] = '\0';
// test if symbol is a module name (with '!' after it)
// if so, get next token and treat as symbol
pImage = GetModuleIndex(chSymbol);
if (pImage && (ch = PeekAsmChar()) == '!') {
pchAsmLine++;
ch = PeekAsmChar();
pchAsmLine++;
cbSymbol = 0;
while ((ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z') ||
(ch >= '0' && ch <= '9') || (ch == '_')) {
chSymbol[cbSymbol++] = ch;
ch = *pchAsmLine++;
}
chSymbol[cbSymbol] = '\0';
pchAsmLine--;
iModule = pImage->index;
}
else
iModule = -1;
if (GetOffsetFromSym(chSymbol, pvalue, iModule))
return ASM_SYMBOL_CLASS;
// symbol is undefined.
// if a possible hex number, do not set the error type
if (!fNumber)
errNumber = VARDEF;
}
// if possible number and no error, return the number
if (fNumber && !errNumber) {
if (fDigit) {
// check for possible segment specification
// "<16-bit number>:"
if (PeekAsmChar() == ':') {
pchAsmLine++;
if (value > 0xffff)
error(BADSEG);
*pvalue = value;
return ASM_SEGMENT_CLASS;
}
*pvalue = value;
return ASM_NUMBER_CLASS;
}
else
errNumber = SYNTAX;
}
// last chance, undefined symbol and illegal number,
// so test for register, will handle old format
if ((index = GetAsmReg(chPreSym, pvalue)) != 0) {
if (index == ASM_REG_SEGMENT)
if (PeekAsmChar() == ':') {
pchAsmLine++;
index = ASM_SEGOVR_CLASS;
}
return index; // class type returned by GetAsmReg
}
*pvalue = (ULONG) errNumber;
return ASM_ERROR_CLASS;
}
