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dis.cpp
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dis.cpp
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//
// Disassembler
//
#include "ildasmpch.h"
#include "debugmacros.h"
#include "corpriv.h"
#include "dasmenum.hpp"
#include "formattype.h"
#include "dis.h"
#include "resource.h"
#include "ilformatter.h"
#include "outstring.h"
#include "ceeload.h"
#include "dynamicarray.h"
extern PELoader * g_pPELoader;
#include <corsym.h>
extern ISymUnmanagedReader* g_pSymReader;
extern BOOL g_fDumpAsmCode;
extern char g_szAsmCodeIndent[];
extern BOOL g_fShowBytes;
extern BOOL g_fShowSource;
extern BOOL g_fInsertSourceLines;
extern BOOL g_fTryInCode;
extern BOOL g_fQuoteAllNames;
extern BOOL g_fDumpTokens;
extern DynamicArray<__int32> *g_pPtrTags; //to keep track of all "ldptr"
extern DynamicArray<DWORD> *g_pPtrSize; //to keep track of all "ldptr"
extern int g_iPtrCount;
static BOOL ConvToLiteral(__inout __nullterminated char* retBuff, const WCHAR* str, int cbStr);
extern DWORD g_Mode;
extern unsigned g_uConsoleCP;
#define PADDING 28
extern BOOL g_fThisIsInstanceMethod;
extern unsigned g_uCodePage;
extern HANDLE hConsoleOut;
extern HANDLE hConsoleErr;
// globals for source file info
ULONG_PTR ulWasFileToken = 0xFFFFFFFF;
GUID guidWasLang={0}, guidWasLangVendor={0},guidWasDoc={0};
WCHAR wzWasFileName[2048];
ULONG ulWasLine = 0;
FILE* pFile=NULL;
BOOL bIsNewFile = TRUE;
WCHAR wzUniBuf[UNIBUF_SIZE];
char szString[SZSTRING_SIZE];
//-----------------------------------
struct LexScope
{
DWORD dwStart;
DWORD dwEnd;
ISymUnmanagedScope* pISymScope;
DWORD dwZOrder;
inline bool IsOpen() { return (dwZOrder != 0); };
inline bool Covers(DWORD dwOffset) { return ((dwStart <= dwOffset) && (dwOffset < dwEnd)); };
};
//-----------------------------------
OPCODE DecodeOpcode(const BYTE *pCode, DWORD *pdwLen)
{
OPCODE opcode;
*pdwLen = 1;
opcode = OPCODE(pCode[0]);
switch(opcode) {
case CEE_PREFIX1:
opcode = OPCODE(pCode[1] + 256);
if (opcode < 0 || opcode >= CEE_COUNT)
opcode = CEE_COUNT;
*pdwLen = 2;
break;
case CEE_PREFIXREF:
case CEE_PREFIX2:
case CEE_PREFIX3:
case CEE_PREFIX4:
case CEE_PREFIX5:
case CEE_PREFIX6:
case CEE_PREFIX7:
*pdwLen = 3;
return CEE_COUNT;
default:
break;
}
return opcode;
}
//------------------------------------------------------------------
WCHAR* UtfToUnicode(__in __nullterminated const char* sz)
{
WCHAR* wz = wzUniBuf;
if (WszMultiByteToWideChar(CP_UTF8,0,sz,-1,wz,UNIBUF_SIZE/2) == 0)
{
wz[UNIBUF_SIZE/2 - 1] = 0;
}
return wz;
}
char* UnicodeToAnsi(__in __nullterminated const WCHAR* wz)
{
char* sz = (char*)(&wzUniBuf[UNIBUF_SIZE/2]);
if (WszWideCharToMultiByte(g_uConsoleCP,0,wz,-1,sz,UNIBUF_SIZE,NULL,NULL) == 0)
{
sz[UNIBUF_SIZE - 1] = 0;
}
return sz;
}
WCHAR* AnsiToUnicode(__in __nullterminated const char* sz)
{
WCHAR* wz = wzUniBuf;
if (WszMultiByteToWideChar(g_uConsoleCP,0,sz,-1,wz,UNIBUF_SIZE/2) == 0)
{
wz[UNIBUF_SIZE/2 - 1] = 0;
}
return wz;
}
char* UnicodeToUtf(__in __nullterminated const WCHAR* wz)
{
char* sz = (char*)(&wzUniBuf[UNIBUF_SIZE/2]);
if (WszWideCharToMultiByte(CP_UTF8,0,wz,-1,sz,UNIBUF_SIZE,NULL,NULL) == 0)
{
sz[UNIBUF_SIZE - 1] = 0;
}
return sz;
}
char* AnsiToUtf(__in __nullterminated const char* sz) { return UnicodeToUtf(AnsiToUnicode(sz));}
static void UnicodeToConsoleOrMsgBox(__in __nullterminated const WCHAR* wz)
{
{
//DWORD dw;
//char* sz = UnicodeToAnsi(wz);
//WriteFile(hConsoleOut,(CONST VOID *)sz, (ULONG32)strlen(sz),&dw,NULL);
//WriteFile(hConsoleOut,(CONST VOID *)"\r\n", 2,&dw,NULL);
printf("%s\n",UnicodeToAnsi(wz));
}
}
static void UnicodeToFile(__in __nullterminated const WCHAR* wz, FILE* pF)
{
unsigned endofline = 0x000A000D;
int L;
if((L=(int)wcslen(wz))) fwrite(wz,L*sizeof(WCHAR),1,pF);
fwrite(&endofline,4,1,pF);
}
static void ToGUIOrFile(__in __nullterminated const char* sz, void* GUICookie)
{
{
if(g_fDumpRTF) fprintf((FILE*)GUICookie,"%s\\line\n",sz);
else fprintf((FILE*)GUICookie,"%s\n",sz);
}
}
//------------------------------------------------------------------
void printError(void* GUICookie, __in __nullterminated const char* string)
{
{
//DWORD dw;
const char* sz = ERRORMSG(string);
if(GUICookie) printLine(GUICookie, sz);
//sz = UnicodeToAnsi(UtfToUnicode(string));
//WriteFile(hConsoleErr,(CONST VOID *)sz, (ULONG32)strlen(sz),&dw,NULL);
//WriteFile(hConsoleErr,(CONST VOID *)"\r\n", 2,&dw,NULL);
fprintf(stderr,"%s\n",UnicodeToAnsi(UtfToUnicode(string)));
}
}
void printLine(void* GUICookie, __in __nullterminated const char* string)
{
const char* sz = string;
if (GUICookie == NULL)
{
UnicodeToConsoleOrMsgBox(UtfToUnicode(string));
return;
}
if(g_uCodePage != CP_UTF8)
{
WCHAR* wz = UtfToUnicode(string);
if(g_uCodePage != 0xFFFFFFFF)
{
sz = UnicodeToAnsi(wz);
}
else if(GUICookie)
{
UnicodeToFile(wz,(FILE*)GUICookie);
return;
}
else sz = (char*)wz;
}
ToGUIOrFile(sz,GUICookie);
}
void printLineW(void* GUICookie, __in __nullterminated const WCHAR* string)
{
const char* sz = (const char*)string;
if (GUICookie == NULL)
{
UnicodeToConsoleOrMsgBox(string);
return;
}
if(g_uCodePage == 0xFFFFFFFF)
{
UnicodeToFile(string,(FILE*)GUICookie);
return;
}
else if(g_uCodePage == CP_UTF8)
sz = UnicodeToUtf(string);
else if(g_uCodePage == g_uConsoleCP)
sz = UnicodeToAnsi(string);
ToGUIOrFile(sz,GUICookie);
}
char * DumpQString(void* GUICookie,
__in __nullterminated const char* szToDump,
__in __nullterminated const char* szPrefix,
unsigned uMaxLen)
{
unsigned Lwt = (unsigned)strlen(szString);
char* szptr = &szString[Lwt];
const char* p = szToDump;
unsigned L = (unsigned)strlen(szToDump);
unsigned l,i;
unsigned tally=0;
*szptr++ = '"';
do
{
l = L;
if(l > uMaxLen+2) // +2 - to account for leading/trailing doublequotes in szToDump
{
l = uMaxLen;
while((p[l-1] == '\\')&& l) l--;
if(l == 0) l = (uMaxLen+1) & 0xFFFFFFFE;
}
if(tally)
{
printLine(GUICookie,szString);
szptr = szString;
szptr+=sprintf_s(szptr,SZSTRING_SIZE,"%s+ \"",szPrefix);
}
else uMaxLen = uMaxLen - (ULONG32)strlen(szPrefix) + Lwt;
tally++;
for(i=0; i < l; i++, szptr++, p++)
{
switch(*p)
{
case '\n': *szptr++ = '\\'; *szptr = 'n'; break;
case '\r': *szptr++ = '\\'; *szptr = 'r'; break;
case '\t': *szptr++ = '\\'; *szptr = 't'; break;
case '\b': *szptr++ = '\\'; *szptr = 'b'; break;
case '\f': *szptr++ = '\\'; *szptr = 'f'; break;
case '\v': *szptr++ = '\\'; *szptr = 'v'; break;
case '\a': *szptr++ = '\\'; *szptr = 'a'; break;
case '\?': *szptr++ = '\\'; *szptr = '?'; break;
case '\\': *szptr++ = '\\'; *szptr = '\\'; break;
case '"': *szptr++ = '\\'; *szptr = '"'; break;
case '{': szptr += sprintf_s(szptr,SZSTRING_REMAINING_SIZE(szptr),SCOPE()); szptr--; break;
case '}': szptr += sprintf_s(szptr,SZSTRING_REMAINING_SIZE(szptr),UNSCOPE()); szptr--; break;
case '<': szptr += sprintf_s(szptr,SZSTRING_REMAINING_SIZE(szptr),LTN()); szptr--; break;
case '>': szptr += sprintf_s(szptr,SZSTRING_REMAINING_SIZE(szptr),GTN()); szptr--; break;
default: *szptr = *p; break;
}
}
*szptr++ = '"';
*szptr = 0;
L -= l;
} while(L);
return szptr;
}
struct DasmExceptionInfoClause : COR_ILMETHOD_SECT_EH_CLAUSE_FAT {
public:
bool ClauseIsFat;
};
DasmExceptionInfoClause* g_ehInfo = NULL;
ULONG g_ehCount = 0;
/********************************************************************************/
/* used by qsort to sort the g_ehInfo table */
static int __cdecl ehInfoCmp(const void *op1, const void *op2)
{
DasmExceptionInfoClause* p1 = (DasmExceptionInfoClause*)op1;
DasmExceptionInfoClause* p2 = (DasmExceptionInfoClause*)op2;
int d;
d = p1->GetTryOffset() - p2->GetTryOffset(); if(d) return d;
d = p1->GetTryLength() - p2->GetTryLength(); if(d) return d;
d = p1->GetHandlerOffset() - p2->GetHandlerOffset(); if(d) return d;
d = p1->GetHandlerLength() - p2->GetHandlerLength(); if(d) return d;
return 0;
}
BOOL enumEHInfo(const COR_ILMETHOD_SECT_EH* eh, IMDInternalImport *pImport, DWORD dwCodeSize)
{
COR_ILMETHOD_SECT_EH_CLAUSE_FAT ehBuff;
const COR_ILMETHOD_SECT_EH_CLAUSE_FAT* ehInfo;
BOOL fTryInCode = FALSE;
if(g_ehInfo) VDELETE(g_ehInfo);
g_ehCount = 0;
if(eh && (g_ehCount = eh->EHCount()))
{
g_ehInfo = new DasmExceptionInfoClause[g_ehCount];
_ASSERTE(g_ehInfo != NULL);
unsigned i;
for (i = 0; i < g_ehCount; i++)
{
ehInfo = (COR_ILMETHOD_SECT_EH_CLAUSE_FAT*)eh->EHClause(i, &ehBuff);
memcpy(&g_ehInfo[i],ehInfo,sizeof(COR_ILMETHOD_SECT_EH_CLAUSE_FAT));
g_ehInfo[i].ClauseIsFat = eh->IsFat();
//_ASSERTE((ehInfo->GetFlags() & SEH_NEW_PUT_MASK) == 0); // we are using 0x80000000 and 0x40000000
g_ehInfo[i].SetFlags((CorExceptionFlag)((int)ehInfo->GetFlags() & ~SEH_NEW_PUT_MASK));
}
// check if all boundaries are within method code:
fTryInCode = g_fTryInCode;
for(i=0; i < g_ehCount; i++)
{
if( (g_ehInfo[i].GetTryOffset() >= dwCodeSize) ||
(g_ehInfo[i].GetTryOffset() + g_ehInfo[i].GetTryLength() >= dwCodeSize)||
(g_ehInfo[i].GetHandlerOffset() >= dwCodeSize) ||
(g_ehInfo[i].GetHandlerOffset() + g_ehInfo[i].GetHandlerLength() > dwCodeSize))
{
g_ehInfo[i].SetFlags((CorExceptionFlag)((int)g_ehInfo[i].GetFlags() | ERR_OUT_OF_CODE));
fTryInCode = FALSE; // if out of code, don't expand
}
}
if(fTryInCode)
{
DWORD dwWasTryOffset=0xFFFFFFFF, dwWasTryLength=0xFFFFFFFF, dwLastOffset=0xFFFFFFFF;
unsigned iNewTryBlock=0;
qsort(g_ehInfo, g_ehCount, sizeof(DasmExceptionInfoClause), ehInfoCmp);
for(i=0; i < g_ehCount; i++)
{
if((g_ehInfo[i].GetTryOffset() != dwWasTryOffset)||(g_ehInfo[i].GetTryLength() != dwWasTryLength))
{
g_ehInfo[i].SetFlags((CorExceptionFlag)((int)g_ehInfo[i].GetFlags() | NEW_TRY_BLOCK)); // insert try in source
dwLastOffset = g_ehInfo[i].GetTryOffset() + g_ehInfo[i].GetTryLength();
dwWasTryOffset = g_ehInfo[i].GetTryOffset();
dwWasTryLength = g_ehInfo[i].GetTryLength();
iNewTryBlock = i;
}
// determine offset of the block that lexically follows the try block (filter or handler)
DWORD dwFilterOrHandlerOffset;
if (g_ehInfo[i].GetFlags() & COR_ILEXCEPTION_CLAUSE_FILTER)
{
dwFilterOrHandlerOffset = g_ehInfo[i].GetFilterOffset();
}
else
dwFilterOrHandlerOffset = g_ehInfo[i].GetHandlerOffset();
if (dwFilterOrHandlerOffset == dwLastOffset)
{
if((i == iNewTryBlock)||((int)g_ehInfo[iNewTryBlock].GetFlags() & PUT_INTO_CODE))
g_ehInfo[i].SetFlags((CorExceptionFlag)((int)g_ehInfo[i].GetFlags() | PUT_INTO_CODE)); // insert catch/filter/finally in source
else
g_ehInfo[i].SetFlags((CorExceptionFlag)((int)g_ehInfo[i].GetFlags() | NEW_TRY_BLOCK)); // insert catch/filter/finally in source
dwLastOffset = (g_ehInfo[i].GetHandlerOffset() + g_ehInfo[i].GetHandlerLength());
}
else
g_ehInfo[i].SetFlags((CorExceptionFlag)((int)g_ehInfo[i].GetFlags() | NEW_TRY_BLOCK)); // insert try in source
}
}
else
{
for(i=0; i < g_ehCount; i++)
{
g_ehInfo[i].SetFlags((CorExceptionFlag)((int)g_ehInfo[i].GetFlags() | NEW_TRY_BLOCK)); // insert try in source
}
}
}
return fTryInCode;
}
// This dumps the hex bytes for the given EHINFO clause
void DumpHexEHInfo(DasmExceptionInfoClause *ehInfo, void *GUICookie)
{
char *szptr = &szString[0];
_ASSERTE(g_fShowBytes);
COR_ILMETHOD_SECT_EH_CLAUSE_SMALL eh; // Temporary holder if we should dump the small version
BYTE *pb;
size_t sizeToDump; // Size of the hex data we're dumping
szptr = &szString[0];
szptr += sprintf_s(szptr, SZSTRING_SIZE,"%s// HEX:", g_szAsmCodeIndent);
ehInfo->SetFlags((CorExceptionFlag)((int)ehInfo->GetFlags() & ~SEH_NEW_PUT_MASK));
if (ehInfo->ClauseIsFat)
{
// Easy, though probably less common case
pb = (BYTE *)ehInfo;
sizeToDump = sizeof(COR_ILMETHOD_SECT_EH_CLAUSE_FAT);
} else
{
// Dev11 #2227 - we should dump small clauses as such in the hex dump
// Recreate the small EH clause, here, if it came is as a small clause
eh.SetFlags(ehInfo->GetFlags());
eh.TryOffset = ehInfo->TryOffset;
eh.TryLength = ehInfo->TryLength;
eh.HandlerOffset = ehInfo->HandlerOffset;
eh.HandlerLength = ehInfo->HandlerLength;
// A couple of sanity checks to make sure things the hex bites recreated are alright
_ASSERTE(sizeof(eh.FilterOffset) == sizeof(eh.ClassToken));
_ASSERTE(offsetof(COR_ILMETHOD_SECT_EH_CLAUSE_SMALL, FilterOffset) == offsetof(COR_ILMETHOD_SECT_EH_CLAUSE_SMALL, ClassToken));
eh.FilterOffset = ehInfo->FilterOffset;
pb = (BYTE *)&eh;
sizeToDump = sizeof(COR_ILMETHOD_SECT_EH_CLAUSE_SMALL);
}
// Now dump the bytes out
for (size_t i = 0; i < sizeToDump; i++)
szptr += sprintf_s(szptr, SZSTRING_REMAINING_SIZE(szptr), " %2.2X", *pb++);
printLine(GUICookie, COMMENT(szString));
// ehInfo->SetFlags((CorExceptionFlag)((dwFlags & ~SEH_NEW_PUT_MASK) | PUT_INTO_CODE));
}
void dumpOneEHInfo(DasmExceptionInfoClause* ehInfo, IMDInternalImport *pImport, void *GUICookie)
{
//char szString[4096];
char* szptr = &szString[0];
if(!ehInfo) return;
DWORD dwFlags = ehInfo->GetFlags();
if(dwFlags & PUT_INTO_CODE)
return; // by the time dumpEHInfo is called, this ehInfo is done
if(dwFlags & NEW_TRY_BLOCK)
{
szptr+=sprintf_s(szptr,SZSTRING_REMAINING_SIZE(szptr),"%s%s IL_%04x ",g_szAsmCodeIndent,KEYWORD(".try"),ehInfo->GetTryOffset());
szptr+=sprintf_s(szptr,SZSTRING_REMAINING_SIZE(szptr),"%s IL_%04x ",KEYWORD("to"),ehInfo->GetTryOffset()+ehInfo->GetTryLength());
}
else
szptr+=sprintf_s(szptr,SZSTRING_REMAINING_SIZE(szptr),"%s ",g_szAsmCodeIndent);
if (dwFlags & COR_ILEXCEPTION_CLAUSE_FILTER)
szptr+=sprintf_s(szptr,SZSTRING_REMAINING_SIZE(szptr), "%s IL_%04x ",KEYWORD("filter"),ehInfo->GetFilterOffset());
else if (dwFlags & COR_ILEXCEPTION_CLAUSE_FAULT)
szptr+=sprintf_s(szptr,SZSTRING_REMAINING_SIZE(szptr), KEYWORD("fault "));
else if (dwFlags & COR_ILEXCEPTION_CLAUSE_FINALLY || IsNilToken(ehInfo->GetClassToken()))
szptr+=sprintf_s(szptr,SZSTRING_REMAINING_SIZE(szptr), KEYWORD("finally "));
else
{
CQuickBytes out;
szptr+=sprintf_s(szptr,SZSTRING_REMAINING_SIZE(szptr), "%s %s ",KEYWORD("catch"),PrettyPrintClass(&out, ehInfo->GetClassToken(), pImport));
REGISTER_REF(g_tkRefUser,ehInfo->GetClassToken());
}
szptr+=sprintf_s(szptr,SZSTRING_REMAINING_SIZE(szptr), "%s IL_%04x",KEYWORD("handler"),ehInfo->GetHandlerOffset());
if(ehInfo->GetHandlerLength() != (DWORD) -1)
szptr+=sprintf_s(szptr,SZSTRING_REMAINING_SIZE(szptr), " %s IL_%04x",KEYWORD("to"),ehInfo->GetHandlerOffset()+ehInfo->GetHandlerLength());
printLine(GUICookie, szString);
if(g_fShowBytes)
DumpHexEHInfo(ehInfo, GUICookie);
/*
if(ehInfo->GetFlags() & ERR_OUT_OF_CODE)
{
_snprintf_s(szString, _countof(szString), _TRUNCATE, "%s// WARNING: Boundary outside the method code",g_szAsmCodeIndent);
printLine(GUICookie,szString);
}
*/
}
void dumpEHInfo(IMDInternalImport *pImport, void *GUICookie)
{
//char szString[4096];
if(! g_ehCount) return;
sprintf_s(szString, SZSTRING_SIZE, "%s// Exception count %d", g_szAsmCodeIndent, g_ehCount);
//sprintf_s(szString, SZSTRING_SIZE, "%s// %d irregular exception clauses", g_szAsmCodeIndent, g_ehCount);
printLine(GUICookie, COMMENT(szString));
for (unsigned i = 0; i < g_ehCount; i++)
{
DasmExceptionInfoClause* ehInfo = &g_ehInfo[i];
dumpOneEHInfo(ehInfo,pImport,GUICookie);
}
}
static int __cdecl cmpLineCode(const void *p1, const void *p2)
{ int ret = (((LineCodeDescr*)p1)->PC - ((LineCodeDescr*)p2)->PC);
if(ret==0)
{
ret= (((LineCodeDescr*)p1)->Line - ((LineCodeDescr*)p2)->Line);
if(ret==0) ret= (((LineCodeDescr*)p1)->Column - ((LineCodeDescr*)p2)->Column);
}
return ret;
}
static int __cdecl cmpLexScope(const void *p1, const void *p2)
{
LexScope* pls1 = (LexScope*)p1;
LexScope* pls2 = (LexScope*)p2;
int d;
if((d = pls1->dwStart - pls2->dwStart)) return d;
return (pls2->dwEnd - pls1->dwEnd);
}
char* DumpDataPtr(__inout __nullterminated char* buffer, DWORD ptr, DWORD size)
{
// check if ptr really points to some data in one of sections
IMAGE_SECTION_HEADER *pSecHdr = NULL;
DWORD i;
DWORD dwNumberOfSections;
if(g_pPELoader->IsPE32())
{
pSecHdr = IMAGE_FIRST_SECTION(g_pPELoader->ntHeaders32());
dwNumberOfSections = VAL16(g_pPELoader->ntHeaders32()->FileHeader.NumberOfSections);
}
else
{
pSecHdr = IMAGE_FIRST_SECTION(g_pPELoader->ntHeaders64());
dwNumberOfSections = VAL16(g_pPELoader->ntHeaders64()->FileHeader.NumberOfSections);
}
for (i=0; i < dwNumberOfSections; i++,pSecHdr++)
{
if((ptr >= VAL32(pSecHdr->VirtualAddress))&&
(ptr < VAL32(pSecHdr->VirtualAddress)+VAL32(pSecHdr->Misc.VirtualSize)))
{
if(ptr+size > VAL32(pSecHdr->VirtualAddress)+VAL32(pSecHdr->Misc.VirtualSize)) i = dwNumberOfSections;
break;
}
}
if(i < dwNumberOfSections)
{ // yes, the pointer points to real data
int j;
for(j=0; (j < g_iPtrCount)&&((*g_pPtrTags)[j] != (__int32)ptr); j++);
if(j == g_iPtrCount)
{
if (g_pPtrSize == NULL)
{
g_pPtrSize = new DynamicArray<DWORD>;
}
if (g_pPtrTags == NULL)
{
g_pPtrTags = new DynamicArray<__int32>;
}
(*g_pPtrSize)[g_iPtrCount] = size;
(*g_pPtrTags)[g_iPtrCount++] = ptr;
}
else if((*g_pPtrSize)[j] < size) (*g_pPtrSize)[j] = size;
const char* szTls = "D_";
if(strcmp((const char*)(pSecHdr->Name),".tls") == 0) szTls = "T_";
else if(strcmp((const char*)(pSecHdr->Name),".text") == 0) szTls = "I_";
buffer+=sprintf_s(buffer,SZSTRING_REMAINING_SIZE(buffer), "%s%8.8X",szTls,ptr);
} //else print as hex
else
{
buffer+=sprintf_s(buffer,SZSTRING_REMAINING_SIZE(buffer),ERRORMSG("0x%8.8X /* WARNING: rogue pointer! (size 0x%8.8X) */"),ptr,size);
}
return buffer;
}
void DumpLocals(IMDInternalImport *pImport,COR_ILMETHOD_DECODER *pMethod, __in __nullterminated char* szVarPrefix, void* GUICookie)
{
if (pMethod->GetLocalVarSigTok())
{
DWORD cbSigLen;
PCCOR_SIGNATURE pComSig;
CQuickBytes qbMemberSig;
size_t dwL;
if (FAILED(pImport->GetSigFromToken(pMethod->GetLocalVarSigTok(), &cbSigLen, &pComSig)))
{
printLine(GUICookie, "Invalid record");
return;
}
_ASSERTE(*pComSig == IMAGE_CEE_CS_CALLCONV_LOCAL_SIG);
appendStr(&qbMemberSig, g_szAsmCodeIndent);
appendStr(&qbMemberSig, KEYWORD(".locals "));
if(g_fDumpTokens)
{
char sz[32];
sprintf_s(sz,32,"/*%08X*/ ",pMethod->GetLocalVarSigTok());
appendStr(&qbMemberSig,COMMENT(sz));
}
if(pMethod->GetFlags() & CorILMethod_InitLocals) appendStr(&qbMemberSig, KEYWORD("init "));
dwL = qbMemberSig.Size();
char* pszTailSig = (char *) PrettyPrintSig(pComSig, cbSigLen, 0, &qbMemberSig, pImport,szVarPrefix);
if(strlen(pszTailSig) < dwL+3) return;
{
ULONG32 i,j,k,indent = (ULONG32)strlen(g_szAsmCodeIndent)+9; // indent+.locals (
char chAfterComma;
char *pComma = pszTailSig, *pch;
while((pComma = strchr(pComma,',')))
{
for(pch = pszTailSig, i=0, j=0, k=0; pch < pComma; pch++)
{
if(*pch == '\'') j=1-j;
else if(j==0)
{
if(*pch == '[') i++;
else if(*pch == ']') i--;
else if(strncmp(pch,LTN(),strlen(LTN()))==0) k++;
else if(strncmp(pch,GTN(),strlen(GTN()))==0) k--;
}
}
pComma++;
if((i==0)&&(k==0)&&(j==0)) // no brackets or all opened/closed
{
chAfterComma = *pComma;
*pComma = 0;
printLine(GUICookie,pszTailSig);
*pComma = chAfterComma;
for(i=0; i<indent; i++) pszTailSig[i] = ' ';
strcpy_s(&pszTailSig[indent],strlen(pComma)+1,pComma);
pComma = pszTailSig;
}
}
}
printLine(GUICookie, pszTailSig);
}
}
void LoadScope(ISymUnmanagedScope *pIScope,
DynamicArray<LexScope> *pdaScope,
ULONG *pulScopes)
{
ULONG32 ulVars;
ULONG32 ulStart;
ULONG32 ulEnd;
ISymUnmanagedScope** ppChildScope = new ISymUnmanagedScope*[4096];
ULONG32 ulChildren;
unsigned i;
if(SUCCEEDED(pIScope->GetLocalCount(&ulVars)) && ulVars)
{
if(SUCCEEDED(pIScope->GetStartOffset(&ulStart)) &&
SUCCEEDED(pIScope->GetEndOffset(&ulEnd)))
{
(*pdaScope)[*pulScopes].dwStart = ulStart;
(*pdaScope)[*pulScopes].dwEnd = ulEnd;
(*pdaScope)[*pulScopes].dwZOrder = 0;
(*pdaScope)[*pulScopes].pISymScope = pIScope;
pIScope->AddRef();
(*pulScopes)++;
}
}
if(SUCCEEDED(pIScope->GetChildren(4096,&ulChildren,ppChildScope)))
{
for(i = 0; i < ulChildren; i++)
{
if(ppChildScope[i]) {
LoadScope(ppChildScope[i],pdaScope,pulScopes);
ppChildScope[i]->Release();
}
}
}
VDELETE(ppChildScope);
}
//#define SHOW_LEXICAL_SCOPES
void OpenScope(ISymUnmanagedScope *pIScope,
__inout_ecount(ulLocals) ParamDescriptor *pLV,
ULONG ulLocals)
{
ULONG32 dummy;
ULONG32 ulVars;
ULONG32 ulSlot;
ISymUnmanagedVariable** pVars = NULL;
if(FAILED(pIScope->GetLocalCount(&ulVars))) return;
ULONG32 ulNameLen;
#ifdef SHOW_LEXICAL_SCOPES
for(unsigned jj = 0; jj < ulLocals; jj++) pLV[jj].attr = 0xFFFFFFFF;
#endif
if(ulVars)
{
pVars = new ISymUnmanagedVariable*[ulVars+4];
memset(pVars,0,sizeof(PVOID)*(ulVars+4));
if(SUCCEEDED(pIScope->GetLocals(ulVars+4,&dummy,pVars)))
{
WCHAR* wzName = wzUniBuf;
char* szName = NULL;
for(ULONG ilv = 0; ilv < ulVars; ilv++)
{
if(pVars[ilv])
{
// get the local var slot number and make sure that it's in bounds:
if(SUCCEEDED(pVars[ilv]->GetAddressField1(&ulSlot)) && ulSlot < ulLocals)
{
if(SUCCEEDED(pVars[ilv]->GetName(UNIBUF_SIZE/2,&ulNameLen,wzName)))
{
szName = UnicodeToUtf(wzName);
#ifndef SHOW_LEXICAL_SCOPES
for(ULONG32 j=0; j<ulLocals; j++)
{
if(j == ulSlot) continue;
if((pLV[ulSlot].name!=NULL)&&(!strcmp(szName,pLV[j].name)))
{
sprintf_s(szName,UNIBUF_SIZE/2,"V_%d",ulSlot);
break;
}
}
#endif
if (!*szName)
sprintf_s(szName,UNIBUF_SIZE/2,"V_%d",ulSlot);
ulNameLen = (ULONG32) strlen(szName);
if((pLV[ulSlot].name==NULL)||(ulNameLen > (ULONG32)strlen(pLV[ulSlot].name)))
{
VDELETE(pLV[ulSlot].name);
pLV[ulSlot].name = new char[ulNameLen+1];
}
if(pLV[ulSlot].name != NULL)
strcpy_s(pLV[ulSlot].name,ulNameLen+1,szName);
}
pLV[ulSlot].attr = ulSlot;
}
pVars[ilv]->Release();
}
}
}
VDELETE(pVars);
}
}
char* DumpUnicodeString(void* GUICookie,
__inout __nullterminated char* szString,
__in_ecount(cbString) WCHAR* pszString,
ULONG cbString,
bool SwapString )
{
unsigned i,L;
char* szStr=NULL, *szRet = NULL;
#if defined(ALIGN_ACCESS) || BIGENDIAN
WCHAR* pszStringCopy = NULL;
// Make a copy if the string is unaligned or we have to modify it
if (cbString > 0)
{
#if !BIGENDIAN
if((size_t)pszString & (sizeof(WCHAR)-1))
#endif
{
L = (cbString+1)*sizeof(WCHAR);
pszStringCopy = new WCHAR[cbString+1];
memcpy(pszStringCopy, pszString, L);
pszString=pszStringCopy;
}
}
#endif
#if BIGENDIAN
if (SwapString)
SwapStringLength(pszString, cbString);
#endif
// first, check for embedded zeros:
for(i=0; i < cbString; i++)
{
if(pszString[i] == 0) goto DumpAsByteArray;
}
szStr = new char[cbString*3 + 5];
memset(szStr,0,cbString*3 + 5);
WszWideCharToMultiByte(CP_UTF8,0,pszString,cbString,&szStr[0],cbString*3,NULL,NULL);
L = (unsigned)strlen(szStr);
szStr[L] = 0;
for(i=0; i < L; i++)
{
if((!isprint(((BYTE)(szStr[i]))))&&(szStr[i]!='\t')&&(szStr[i]!='\n')&&(szStr[i]!='\r')) break;
}
if(i == L)
{
szRet = DumpQString(GUICookie,szStr,g_szAsmCodeIndent, 50);
}
else
{
DumpAsByteArray:
strcat_s(szString,SZSTRING_SIZE,KEYWORD("bytearray"));
strcat_s(szString,SZSTRING_SIZE," (");
#if BIGENDIAN
SwapStringLength(pszString, cbString);
#endif
DumpByteArray(szString,(BYTE*)pszString,cbString*sizeof(WCHAR),GUICookie);
szRet = &szString[strlen(szString)];
}
if(szStr) VDELETE(szStr);
#if defined(ALIGN_ACCESS) || BIGENDIAN
if(pszStringCopy) VDELETE(pszStringCopy);
#endif
return szRet;
}
// helper to avoid mixing of SEH and stack objects with destructors
BOOL SourceLinesHelper(void *GUICookie, LineCodeDescr* pLCD, __out_ecount(nSize) WCHAR* pFileName, UINT nSize)
{
_ASSERTE(nSize > 0);
memset(pFileName, 0, nSize * sizeof(WCHAR));
if(pLCD->FileToken == 0)
{
return FALSE;
}
struct Param
{
void *GUICookie;
LineCodeDescr* pLCD;
WCHAR* pFileName;
UINT nSize;
BOOL fRet;
} param;
param.GUICookie = GUICookie;
param.pLCD = pLCD;
param.pFileName = pFileName;
param.nSize = nSize;
param.fRet = FALSE;
PAL_TRY(Param *, pParam, ¶m) {
GUID guidLang={0},guidLangVendor={0},guidDoc={0};
WCHAR wzLang[64],wzVendor[64],wzDoc[64];
ULONG32 k;
if(pParam->pLCD->FileToken != ulWasFileToken)
{
((ISymUnmanagedDocument*)(pParam->pLCD->FileToken))->GetLanguage(&guidLang);
((ISymUnmanagedDocument*)(pParam->pLCD->FileToken))->GetLanguageVendor(&guidLangVendor);
((ISymUnmanagedDocument*)(pParam->pLCD->FileToken))->GetDocumentType(&guidDoc);
if(memcmp(&guidLang,&guidWasLang,sizeof(GUID))
||memcmp(&guidLangVendor,&guidWasLangVendor,sizeof(GUID))
||memcmp(&guidDoc,&guidWasDoc,sizeof(GUID)))
{
GuidToLPWSTR(guidLang,wzLang,64);
GuidToLPWSTR(guidLangVendor,wzVendor,64);
GuidToLPWSTR(guidDoc,wzDoc,64);
sprintf_s(szString,SZSTRING_SIZE,"%s%s '%ls', '%ls', '%ls'", g_szAsmCodeIndent,KEYWORD(".language"),
wzLang,wzVendor,wzDoc);
printLine(pParam->GUICookie,szString);
memcpy(&guidWasLang,&guidLang,sizeof(GUID));
memcpy(&guidWasLangVendor,&guidLangVendor,sizeof(GUID));
memcpy(&guidWasDoc,&guidDoc,sizeof(GUID));
}
/*
BOOL fHasEmbeddedSource=FALSE;
((ISymUnmanagedDocument*)(pParam->pLCD->FileToken))->HasEmbeddedSource(&fHasEmbeddedSource);
_snprintf_s(szString, _countof(szString), _TRUNCATE, "%s// PDB has %sembedded source",g_szAsmCodeIndent,
fHasEmbeddedSource ? "" : "no ");
printLine(pParam->GUICookie,szString);
*/
}
((ISymUnmanagedDocument*)(pParam->pLCD->FileToken))->GetURL(pParam->nSize,&k,pParam->pFileName);
ulWasFileToken = pParam->pLCD->FileToken;
pParam->fRet = TRUE;
} PAL_EXCEPT(EXCEPTION_EXECUTE_HANDLER) {
sprintf_s(szString,SZSTRING_SIZE,RstrUTF(IDS_ERRORREOPENINGFILE),pLCD->FileToken);
printError(GUICookie, szString);
}
PAL_ENDTRY
return param.fRet;
}
#ifdef _PREFAST_
#pragma warning(push)
#pragma warning(disable:21000) // Suppress PREFast warning about overly large function
#endif
BOOL Disassemble(IMDInternalImport *pImport, BYTE *ILHeader, void *GUICookie, mdToken FuncToken, ParamDescriptor* pszArgname, ULONG ulArgs)
{
DWORD PC;
BOOL fNeedNewLine = FALSE;
//char szString[4096];
char* szptr;
BYTE* pCode = NULL;
BOOL fTryInCode;
COR_ILMETHOD_DECODER method((COR_ILMETHOD*) ILHeader);
pCode = const_cast<BYTE*>(method.Code);
sprintf_s(szString,SZSTRING_SIZE, RstrUTF(IDS_E_CODESIZE),g_szAsmCodeIndent, method.GetCodeSize(), method.GetCodeSize());
printLine(GUICookie, szString);
if(method.GetCodeSize() == 0) return TRUE;
sprintf_s(szString,SZSTRING_SIZE, "%s%s %d",g_szAsmCodeIndent, KEYWORD(".maxstack"),method.GetMaxStack());
printLine(GUICookie, szString);
//------------ Source lines display ---------------------------------
ULONG32 ulLines =0;
LineCodeDescr* LineCode = NULL;
BOOL fShowSource = FALSE;
BOOL fInsertSourceLines = FALSE;
LineCodeDescr* pLCD = NULL;
ParamDescriptor* pszLVname = NULL;
ULONG ulVars=0;
char szVarPrefix[MAX_PREFIX_SIZE];
// scope handling:
DynamicArray<LexScope> daScope;
ULONG ulScopes=0;
DWORD dwScopeZOrder = 0;
ISymUnmanagedScope* pRootScope = NULL;
ISymUnmanagedMethod* pSymMethod = NULL;
char szFileName[2048];
ISymUnmanagedDocument* pMethodDoc[2] = {NULL,NULL};
ULONG32 ulMethodLine[2];
ULONG32 ulMethodCol[2];
BOOL fHasRangeInfo = FALSE;
strcpy_s(szVarPrefix,MAX_PREFIX_SIZE,"V0");
if(g_pSymReader)
{
g_pSymReader->GetMethod(FuncToken,&pSymMethod);
if(g_fShowSource || g_fInsertSourceLines)
{
if(pSymMethod)
{
unsigned ulActualLines=0; // VS compilers produce "Hidden" line numbers, don't count them
if(FAILED(pSymMethod->GetSourceStartEnd(pMethodDoc,ulMethodLine,ulMethodCol,&fHasRangeInfo)))
{
fHasRangeInfo = FALSE;
}
pSymMethod->GetSequencePointCount(&ulLines);
if (ulLines != 0)
{
LineCode = new LineCodeDescr[ulLines+2];
memset(LineCode, 0, sizeof(LineCodeDescr) * (ulLines + 2));
}
if(ulLines != 0 && LineCode != NULL)
{
pLCD = &LineCode[0];
if(fHasRangeInfo)
{
//printLine(GUICookie,"// Has source range info");
pLCD->Line = ulMethodLine[0];
pLCD->Column = ulMethodCol[0];
pLCD->PC = 0;
pLCD->FileToken = (ULONG_PTR)pMethodDoc[0];
ulActualLines++;
pLCD++;
}
if(ulLines)
{
ULONG32 *offsets=new ULONG32[ulLines], *lines=new ULONG32[ulLines], *columns=new ULONG32[ulLines];
ULONG32 *endlines=new ULONG32[ulLines], *endcolumns=new ULONG32[ulLines];
ISymUnmanagedDocument** docs = (ISymUnmanagedDocument**)(new PVOID[ulLines]);
ULONG32 actualCount;
pSymMethod->GetSequencePoints(ulLines,&actualCount, offsets,docs,lines,columns, endlines, endcolumns);
for(ULONG i = 0; i < ulLines; i++)
{
pLCD->Line = lines[i];
pLCD->Column = columns[i];
pLCD->LineEnd = endlines[i];
pLCD->ColumnEnd = endcolumns[i];
pLCD->PC = offsets[i];
pLCD->FileToken = (ULONG_PTR)docs[i];
ulActualLines++;
pLCD++;
}
VDELETE(offsets);
VDELETE(lines);
VDELETE(columns);
VDELETE(endlines);
VDELETE(endcolumns);
VDELETE(docs);
} // end if(ulLines)
if(fHasRangeInfo)
{
pLCD->Line = ulMethodLine[1];
pLCD->Column = ulMethodCol[1];
pLCD->PC = method.GetCodeSize();
pLCD->FileToken = (ULONG_PTR)pMethodDoc[1];
ulActualLines++;
pLCD++;
}
ulLines = ulActualLines;
qsort(LineCode,ulLines,sizeof(LineCodeDescr),cmpLineCode);
fShowSource = g_fShowSource;
fInsertSourceLines = g_fInsertSourceLines;
pLCD = &LineCode[0];
} // end if(LineCode)
} //end if (pSymMethod)
}//end if(g_fShowSource)
if (method.GetLocalVarSigTok())
{
// first, get the real number of local vars from signature
DWORD cbSigLen;
PCCOR_SIGNATURE pComSig;
mdSignature mdLocalVarSigTok = method.GetLocalVarSigTok();
if ((TypeFromToken(mdLocalVarSigTok) != mdtSignature) ||
(!pImport->IsValidToken(mdLocalVarSigTok)) || (RidFromToken(mdLocalVarSigTok) == 0))
{
sprintf_s(szString,SZSTRING_SIZE,RstrUTF(IDS_E_BOGUSLVSIG),mdLocalVarSigTok);
printError(GUICookie,szString);
return FALSE;
}