bool SymGetSourceLine(uint Cip, char* FileName, int* Line)
{
IMAGEHLP_LINE64 lineInfo;
memset(&lineInfo, 0, sizeof(IMAGEHLP_LINE64));
lineInfo.SizeOfStruct = sizeof(IMAGEHLP_LINE64);
// Perform a symbol lookup from a specific address
DWORD displacement;
if(!SafeSymGetLineFromAddr64(fdProcessInfo->hProcess, Cip, &displacement, &lineInfo))
return false;
// Copy line number if requested
if(Line)
*Line = lineInfo.LineNumber;
// Copy file name if requested
if(FileName)
{
// Check if it was a full path
if(lineInfo.FileName[1] == ':' && lineInfo.FileName[2] == '\\')
{
// Success: no more parsing
strcpy_s(FileName, MAX_STRING_SIZE, lineInfo.FileName);
return true;
}
// Construct full path from .pdb path
IMAGEHLP_MODULE64 modInfo;
memset(&modInfo, 0, sizeof(IMAGEHLP_MODULE64));
modInfo.SizeOfStruct = sizeof(IMAGEHLP_MODULE64);
if(!SafeSymGetModuleInfo64(fdProcessInfo->hProcess, Cip, &modInfo))
return false;
// Strip the full path, leaving only the file name
char* fileName = strrchr(modInfo.LoadedPdbName, '\\');
if(fileName)
fileName[1] = '\0';
// Copy back to the caller's buffer
strcpy_s(FileName, MAX_STRING_SIZE, modInfo.LoadedPdbName);
strcat_s(FileName, MAX_STRING_SIZE, lineInfo.FileName);
}
return true;
}
extern "C" DLL_EXPORT bool _dbg_addrinfoget(duint addr, SEGMENTREG segment, ADDRINFO* addrinfo)
{
if(!DbgIsDebugging())
return false;
bool retval = false;
if(addrinfo->flags & flagmodule) //get module
{
if(ModNameFromAddr(addr, addrinfo->module, false)) //get module name
retval = true;
}
if(addrinfo->flags & flaglabel)
{
if(LabelGet(addr, addrinfo->label))
retval = true;
else //no user labels
{
DWORD64 displacement = 0;
char buffer[sizeof(SYMBOL_INFO) + MAX_SYM_NAME * sizeof(char)];
PSYMBOL_INFO pSymbol = (PSYMBOL_INFO)buffer;
pSymbol->SizeOfStruct = sizeof(SYMBOL_INFO);
pSymbol->MaxNameLen = MAX_LABEL_SIZE;
if(SafeSymFromAddr(fdProcessInfo->hProcess, (DWORD64)addr, &displacement, pSymbol) && !displacement)
{
pSymbol->Name[pSymbol->MaxNameLen - 1] = '\0';
if(!bUndecorateSymbolNames || !SafeUnDecorateSymbolName(pSymbol->Name, addrinfo->label, MAX_LABEL_SIZE, UNDNAME_COMPLETE))
strcpy_s(addrinfo->label, pSymbol->Name);
retval = true;
}
if(!retval) //search for CALL <jmp.&user32.MessageBoxA>
{
BASIC_INSTRUCTION_INFO basicinfo;
memset(&basicinfo, 0, sizeof(BASIC_INSTRUCTION_INFO));
if(disasmfast(addr, &basicinfo) && basicinfo.branch && !basicinfo.call && basicinfo.memory.value) //thing is a JMP
{
uint val = 0;
if(MemRead(basicinfo.memory.value, &val, sizeof(val)))
{
if(SafeSymFromAddr(fdProcessInfo->hProcess, (DWORD64)val, &displacement, pSymbol) && !displacement)
{
pSymbol->Name[pSymbol->MaxNameLen - 1] = '\0';
if(!bUndecorateSymbolNames || !SafeUnDecorateSymbolName(pSymbol->Name, addrinfo->label, MAX_LABEL_SIZE, UNDNAME_COMPLETE))
sprintf_s(addrinfo->label, "JMP.&%s", pSymbol->Name);
retval = true;
}
}
}
}
if(!retval) //search for module entry
{
uint entry = ModEntryFromAddr(addr);
if(entry && entry == addr)
{
strcpy_s(addrinfo->label, "EntryPoint");
retval = true;
}
}
}
}
if(addrinfo->flags & flagbookmark)
{
addrinfo->isbookmark = BookmarkGet(addr);
retval = true;
}
if(addrinfo->flags & flagfunction)
{
if(FunctionGet(addr, &addrinfo->function.start, &addrinfo->function.end))
retval = true;
}
if(addrinfo->flags & flagloop)
{
if(LoopGet(addrinfo->loop.depth, addr, &addrinfo->loop.start, &addrinfo->loop.end))
retval = true;
}
if(addrinfo->flags & flagcomment)
{
*addrinfo->comment = 0;
if(CommentGet(addr, addrinfo->comment))
retval = true;
else
{
DWORD dwDisplacement;
IMAGEHLP_LINE64 line;
line.SizeOfStruct = sizeof(IMAGEHLP_LINE64);
if(SafeSymGetLineFromAddr64(fdProcessInfo->hProcess, (DWORD64)addr, &dwDisplacement, &line) && !dwDisplacement)
{
char filename[deflen] = "";
strcpy_s(filename, line.FileName);
int len = (int)strlen(filename);
while(filename[len] != '\\' && len != 0)
len--;
if(len)
len++;
sprintf_s(addrinfo->comment, "\1%s:%u", filename + len, line.LineNumber);
retval = true;
}
else if(!bOnlyCipAutoComments || addr == GetContextDataEx(hActiveThread, UE_CIP)) //no line number
{
DISASM_INSTR instr;
String temp_string;
String comment;
ADDRINFO newinfo;
char ascii[256 * 2] = "";
char unicode[256 * 2] = "";
memset(&instr, 0, sizeof(DISASM_INSTR));
disasmget(addr, &instr);
int len_left = MAX_COMMENT_SIZE;
for(int i = 0; i < instr.argcount; i++)
{
memset(&newinfo, 0, sizeof(ADDRINFO));
newinfo.flags = flaglabel;
STRING_TYPE strtype = str_none;
if(instr.arg[i].constant == instr.arg[i].value) //avoid: call <module.label> ; addr:label
{
if(instr.type == instr_branch || !disasmgetstringat(instr.arg[i].constant, &strtype, ascii, unicode, len_left) || strtype == str_none)
continue;
switch(strtype)
{
case str_none:
break;
case str_ascii:
temp_string = instr.arg[i].mnemonic;
temp_string.append(":\"");
temp_string.append(ascii);
temp_string.append("\"");
break;
case str_unicode:
temp_string = instr.arg[i].mnemonic;
temp_string.append(":L\"");
temp_string.append(unicode);
temp_string.append("\"");
break;
}
}
else if(instr.arg[i].memvalue && (disasmgetstringat(instr.arg[i].memvalue, &strtype, ascii, unicode, len_left) || _dbg_addrinfoget(instr.arg[i].memvalue, instr.arg[i].segment, &newinfo)))
{
switch(strtype)
{
case str_none:
if(*newinfo.label)
{
temp_string = "[";
temp_string.append(instr.arg[i].mnemonic);
temp_string.append("]:");
temp_string.append(newinfo.label);
}
break;
case str_ascii:
temp_string = "[";
temp_string.append(instr.arg[i].mnemonic);
temp_string.append("]:");
temp_string.append(ascii);
break;
case str_unicode:
temp_string = "[";
temp_string.append(instr.arg[i].mnemonic);
temp_string.append("]:");
temp_string.append(unicode);
break;
}
}
else if(instr.arg[i].value && (disasmgetstringat(instr.arg[i].value, &strtype, ascii, unicode, len_left) || _dbg_addrinfoget(instr.arg[i].value, instr.arg[i].segment, &newinfo)))
{
if(instr.type != instr_normal) //stack/jumps (eg add esp,4 or jmp 401110) cannot directly point to strings
strtype = str_none;
switch(strtype)
{
case str_none:
if(*newinfo.label)
{
temp_string = instr.arg[i].mnemonic;
temp_string.append(":");
temp_string.append(newinfo.label);
}
break;
case str_ascii:
temp_string = instr.arg[i].mnemonic;
temp_string.append(":\"");
temp_string.append(ascii);
temp_string.append("\"");
break;
case str_unicode:
temp_string = instr.arg[i].mnemonic;
temp_string.append(":L\"");
temp_string.append(unicode);
temp_string.append("\"");
break;
}
}
else
continue;
if(!strstr(comment.c_str(), temp_string.c_str()))
{
if(comment.length())
comment.append(", ");
comment.append(temp_string);
retval = true;
}
}
comment.resize(MAX_COMMENT_SIZE - 2);
String fullComment = "\1";
fullComment += comment;
strcpy_s(addrinfo->comment, fullComment.c_str());
}
}
}
return retval;
}
