mirror of
https://github.com/ultimatepp/ultimatepp.git
synced 2026-05-15 22:02:49 -06:00
426 lines
11 KiB
C++
426 lines
11 KiB
C++
#include "Debuggers.h"
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#ifdef PLATFORM_WIN32
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#define LLOG(x) // DLOG(x)
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#ifdef _DEBUG
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const char * SymTagAsString( DWORD symTag )
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{
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switch( symTag )
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{
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#define SYMTAG(t) case SymTag##t: return #t;
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SYMTAG(Function)
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SYMTAG(Data)
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SYMTAG(PublicSymbol)
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SYMTAG(UDT)
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SYMTAG(Enum)
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SYMTAG(Typedef)
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SYMTAG(PointerType)
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SYMTAG(ArrayType)
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SYMTAG(BaseType)
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SYMTAG(VTableShape)
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SYMTAG(VTable)
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#undef SYMTAG
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default: return "???";
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}
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}
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const char * BaseTypeAsString( DWORD baseType )
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{
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switch ( baseType )
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{
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case btNoType: return "btNoType";
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case btVoid: return "btVoid";
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case btChar: return "btChar";
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case btWChar: return "btWChar";
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case btInt: return "btInt";
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case btUInt: return "btUInt";
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case btFloat: return "btFloat";
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case btBCD: return "btBCD";
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case btBool: return "btBool";
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case btLong: return "btLong";
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case btULong: return "btULong";
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case btCurrency: return "btCurrency";
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case btDate: return "btDate";
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case btVariant: return "btVariant";
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case btComplex: return "btComplex";
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case btBit: return "btBit";
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case btBSTR: return "btBSTR";
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case btHresult: return "btHresult";
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default: return "???";
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}
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}
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#endif
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adr_t Pdb::GetAddress(FilePos p)
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{
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LONG dummy;
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IMAGEHLP_LINE ln;
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ln.SizeOfStruct = sizeof(ln);
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char h[MAX_PATH];
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strcpy(h, p.path);
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if(SymGetLineFromName(hProcess, NULL, h, p.line + 1, &dummy, &ln)) {
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LLOG("GetAddress " << p.path << "(" << p.line << "): " << Hex(ln.Address));
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return ln.Address;
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}
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LLOG("GetAddress " << p.path << "(" << p.line << "): ??");
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return 0;
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}
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Pdb::FilePos Pdb::GetFilePos(adr_t address)
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{
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FilePos fp;
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DWORD dummy;
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IMAGEHLP_LINE ln;
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ln.SizeOfStruct = sizeof(ln);
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fp.address = address;
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if(SymGetLineFromAddr(hProcess, (uintptr_t)address, &dummy, &ln) && FileExists(ln.FileName)) {
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fp.line = ln.LineNumber - 1;
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fp.path = ln.FileName;
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fp.address = ln.Address;
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}
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LLOG("GetFilePos(" << Hex(address) << "): " << fp.path << ": " << fp.line);
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return fp;
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}
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#define MAX_SYMB_NAME 1024
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Pdb::FnInfo Pdb::GetFnInfo0(adr_t address)
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{
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DWORD64 h;
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ULONG64 buffer[(sizeof(SYMBOL_INFO) + MAX_SYMB_NAME + sizeof(ULONG64) - 1) / sizeof(ULONG64)];
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SYMBOL_INFO *f = (SYMBOL_INFO*)buffer;
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f->SizeOfStruct = sizeof(SYMBOL_INFO);
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f->MaxNameLen = MAX_SYMB_NAME;
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FnInfo fn;
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if(SymFromAddr(hProcess, address, &h, f)) {
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LLOG("GetFnInfo " << f->Name
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<< ", type index: " << f->TypeIndex
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<< ", Flags: " << FormatIntHex(f->Flags)
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<< ", Address: " << Hex((dword)f->Address)
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<< ", Size: " << FormatIntHex((dword)f->Size)
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<< ", Tag: " << SymTagAsString(f->Tag));
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fn.name = f->Name;
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fn.address = (adr_t)f->Address;
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fn.size = f->Size;
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fn.pdbtype = f->TypeIndex;
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}
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return fn;
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}
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Pdb::FnInfo Pdb::GetFnInfo(adr_t address)
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{
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int q = fninfo_cache.Find(address);
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if(q >= 0)
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return fninfo_cache[q];
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if(fninfo_cache.GetCount() > 100)
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fninfo_cache.Clear();
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FnInfo f = GetFnInfo0(address);
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fninfo_cache.Add(address, f);
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return f;
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}
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void Pdb::TypeVal(Pdb::Val& v, int typeId, adr_t modbase)
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{
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adr_t tag;
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for(;;) {
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tag = GetSymInfo(modbase, typeId, TI_GET_SYMTAG);
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if(tag == SymTagPointerType) {
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v.ref++;
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}
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else
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if(tag == SymTagArrayType)
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v.array = true;
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else
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break;
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typeId = GetSymInfo(modbase, typeId, TI_GET_TYPE);
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}
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v.type = UNKNOWN;
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if(tag == SymTagUDT)
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v.type = GetTypeIndex(modbase, typeId);
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else {
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ULONG64 sz = 0;
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SymGetTypeInfo(hProcess, modbase, typeId, TI_GET_LENGTH, &sz);
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dword size = (dword)sz;
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if(tag == SymTagEnum)
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v.type = size == 8 ? SINT8 : size == 4 ? SINT4 : size == 2 ? SINT2 : SINT1;
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else {
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switch(GetSymInfo(modbase, typeId, TI_GET_BASETYPE)) {
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case btBool:
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v.type = BOOL1;
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break;
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case btChar:
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case btWChar:
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case btInt:
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case btLong:
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v.type = size == 8 ? SINT8 : size == 4 ? SINT4 : size == 2 ? SINT2 : SINT1;
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break;
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case btUInt:
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case btULong:
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v.type = size == 8 ? UINT8 : size == 4 ? UINT4 : size == 2 ? UINT2 : UINT1;
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break;
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case btFloat:
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v.type = size == 8 ? DBL : FLT;
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break;
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}
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}
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}
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}
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struct Pdb::LocalsCtx {
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adr_t frame;
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VectorMap<String, Pdb::Val> param;
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VectorMap<String, Pdb::Val> local;
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Pdb *pdb;
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Context *context;
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};
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BOOL CALLBACK Pdb::EnumLocals(PSYMBOL_INFO pSym, ULONG SymbolSize, PVOID UserContext)
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{
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LocalsCtx& c = *(LocalsCtx *)UserContext;
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if(pSym->Tag == SymTagFunction)
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return TRUE;
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Val& v = (pSym->Flags & IMAGEHLP_SYMBOL_INFO_PARAMETER ? c.param : c.local).GetAdd(pSym->Name);
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v.address = (adr_t)pSym->Address;
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if(pSym->Flags & IMAGEHLP_SYMBOL_INFO_REGISTER)
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v.address = pSym->Register;
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else
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if(pSym->Flags & IMAGEHLP_SYMBOL_INFO_REGRELATIVE) {
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if(pSym->Register == CV_ALLREG_VFRAME) {
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#ifdef CPU_64
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if(c.pdb->win64)
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v.address += c.pdb->GetCpuRegister(*c.context, CV_AMD64_RBP);
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else
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#endif
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v.address += (adr_t)c.pdb->GetCpuRegister(*c.context, CV_REG_EBP);
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}
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else
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v.address += (adr_t)c.pdb->GetCpuRegister(*c.context, pSym->Register);
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}
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else
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if(pSym->Flags & IMAGEHLP_SYMBOL_INFO_FRAMERELATIVE)
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v.address += c.frame;
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c.pdb->TypeVal(v, pSym->TypeIndex, (adr_t)pSym->ModBase);
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LLOG("LOCAL " << pSym->Name << ": " << Format64Hex(v.address));
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return TRUE;
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}
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void Pdb::GetLocals(Frame& frame, Context& context, VectorMap<String, Pdb::Val>& param,
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VectorMap<String, Pdb::Val>& local)
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{
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static IMAGEHLP_STACK_FRAME f;
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f.InstructionOffset = frame.pc;
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SymSetContext(hProcess, &f, 0);
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LocalsCtx c;
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c.frame = frame.frame;
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c.pdb = this;
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c.context = &context;
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SymEnumSymbols(hProcess, 0, 0, &EnumLocals, &c);
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param = pick(c.param);
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local = pick(c.local);
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}
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BOOL CALLBACK Pdb::EnumGlobals(PSYMBOL_INFO pSym, ULONG SymbolSize, PVOID UserContext)
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{
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LocalsCtx& c = *(LocalsCtx *)UserContext;
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if(pSym->Tag != SymTagData)
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return TRUE;
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LLOG("GLOBAL: " << pSym->Name << " " << Format64Hex(pSym->Address));
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#if 0
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DDUMP(pSym->Scope);
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DDUMP(pSym->Flags);
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DDUMP(pSym->Tag);
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DDUMP(pSym->TypeIndex);
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DWORD dummy;
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IMAGEHLP_LINE ln;
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ln.SizeOfStruct = sizeof(ln);
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ln.Address = pSym->Address;
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if(SymGetLineFromAddr(c.pdb->hProcess, (uintptr_t)pSym->Address, &dummy, &ln)) {
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DDUMP(ln.FileName);
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DDUMP(ln.Address);
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DDUMP(ln.LineNumber);
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}
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else
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DLOG("GetSymLineFromAddr failed!");
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DLOG("=========================");
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#endif
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Val& v = c.pdb->global.GetAdd(pSym->Name);
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v.address = (adr_t)pSym->Address;
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c.pdb->TypeVal(v, pSym->TypeIndex, (adr_t)pSym->ModBase);
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return TRUE;
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}
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void Pdb::LoadGlobals(DWORD64 base)
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{
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static IMAGEHLP_STACK_FRAME f;
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LocalsCtx c;
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c.pdb = this;
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c.context = &context;
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SymEnumSymbols(hProcess, base, NULL, &EnumGlobals, &c);
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}
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Pdb::Val Pdb::GetGlobal(const String& name)
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{
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return global.Get(name, Val());
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}
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String Pdb::GetSymName(adr_t modbase, dword typeindex)
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{
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WCHAR *pwszTypeName;
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if(SymGetTypeInfo(hProcess, modbase, typeindex, TI_GET_SYMNAME, &pwszTypeName)) {
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WString w((const wchar *)pwszTypeName);
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LocalFree(pwszTypeName);
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return w.ToString();
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}
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return Null;
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}
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dword Pdb::GetSymInfo(adr_t modbase, dword typeindex, IMAGEHLP_SYMBOL_TYPE_INFO info)
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{
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dword dw = 0;
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SymGetTypeInfo(hProcess, modbase, typeindex, info, &dw);
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return dw;
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}
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int Pdb::GetTypeIndex(adr_t modbase, dword typeindex)
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{
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int q = type.Find(typeindex);
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if(q < 0) {
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q = type.GetCount();
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type.Add(typeindex).modbase = modbase;
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}
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return q;
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}
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const Pdb::Type& Pdb::GetType(int ti)
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{
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Type& t = type[ti];
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int typeindex = type.GetKey(ti);
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if(t.size < 0) {
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t.name = GetSymName(t.modbase, typeindex);
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ULONG64 sz = 0;
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SymGetTypeInfo(hProcess, t.modbase, typeindex, TI_GET_LENGTH, &sz);
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t.size = (dword)sz;
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dword count = GetSymInfo(t.modbase, typeindex, TI_GET_CHILDRENCOUNT);
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if(count) {
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Buffer<byte> b(sizeof(TI_FINDCHILDREN_PARAMS) + sizeof(ULONG) * count);
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TI_FINDCHILDREN_PARAMS *children = (TI_FINDCHILDREN_PARAMS *) ~b;
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children->Count = count;
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children->Start = 0;
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if(SymGetTypeInfo(hProcess, t.modbase, typeindex, TI_FINDCHILDREN, children)) {
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for(dword i = 0; i < count; i++) {
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dword ch = children->ChildId[i];
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dword tag = GetSymInfo(t.modbase, ch, TI_GET_SYMTAG);
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dword kind = GetSymInfo(t.modbase, ch, TI_GET_DATAKIND);
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if(tag == SymTagData) {
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String name = GetSymName(t.modbase, ch);
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if(kind == DataIsMember) {
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Val& v = t.member.Add(name);
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TypeVal(v, GetSymInfo(t.modbase, ch, TI_GET_TYPEID), t.modbase);
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v.address = GetSymInfo(t.modbase, ch, TI_GET_OFFSET);
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ULONG64 bitcnt = 0;
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SymGetTypeInfo(hProcess, t.modbase, ch, TI_GET_LENGTH, &bitcnt);
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if(bitcnt) {
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v.bitcnt = (byte)bitcnt;
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v.bitpos = (byte)GetSymInfo(t.modbase, ch, TI_GET_BITPOSITION);
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}
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}
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if(kind == DataIsStaticMember || kind == DataIsGlobal) {
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Val& v = t.static_member.Add(name);
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TypeVal(v, GetSymInfo(t.modbase, ch, TI_GET_TYPEID), t.modbase);
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ULONG64 adr = 0;
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SymGetTypeInfo(hProcess, t.modbase, ch, TI_GET_ADDRESS, &adr);
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v.address = (adr_t)adr;
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}
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}
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else
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if(tag == SymTagBaseClass) {
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Val& v = t.base.Add();
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TypeVal(v, GetSymInfo(t.modbase, ch, TI_GET_TYPEID), t.modbase);
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v.address = GetSymInfo(t.modbase, ch, TI_GET_OFFSET);
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}
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else
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if(tag == SymTagVTable) {
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t.vtbl_offset = GetSymInfo(t.modbase, ch, TI_GET_OFFSET);
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dword typeId = GetSymInfo(t.modbase, ch, TI_GET_TYPEID);
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while(GetSymInfo(t.modbase, typeId, TI_GET_SYMTAG) == SymTagPointerType)
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typeId = GetSymInfo(t.modbase, typeId, TI_GET_TYPE);
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if((t.vtbl_typeindex = type.Find(typeId)) < 0) {
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t.vtbl_typeindex = type.GetCount();
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Type& vt = type.Add(typeId);
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vt.modbase = t.modbase;
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vt.size = 0;
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vt.vtbl_typeindex = -2;
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}
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}
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}
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}
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}
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}
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return t;
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}
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#ifdef _DEBUG
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String Pdb::TypeAsString(int ti, bool deep)
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{
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String r;
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#define sTYPE(x) case x: return #x;
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switch(ti) {
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sTYPE(BOOL1)
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sTYPE(UINT1)
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sTYPE(SINT1)
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sTYPE(UINT2)
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sTYPE(SINT2)
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sTYPE(UINT4)
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sTYPE(SINT4)
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sTYPE(UINT8)
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sTYPE(SINT8)
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sTYPE(FLT)
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sTYPE(DBL)
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sTYPE(UNKNOWN)
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}
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if(ti < 0)
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return r;
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const Type& t = GetType(ti);
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r << t.name << "(sizeof = " << t.size << ") ";
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if(!deep)
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return r;
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if(t.member.GetCount()) {
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r << "{ ";
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for(int i = 0; i < t.member.GetCount(); i++) {
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if(i)
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r << ", ";
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r << t.member.GetKey(i) << " +" << t.member[i].address;
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if(t.member[i].ref)
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r << TypeAsString(t.member[i].type, false) << String('*', t.member[i].ref);
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else
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r << ": " << TypeAsString(t.member[i].type);
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}
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r << " }";
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}
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if(t.base.GetCount()) {
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r << " BASE: ";
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for(int i = 0; i < t.base.GetCount(); i++) {
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if(i)
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r << ", ";
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r << " +" << t.base[i].address;
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r << TypeAsString(t.base[i].type);
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}
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}
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return r;
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}
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#endif
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#endif
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