DWORD DumpAddressInfo( PVOID pAddr, LPTSTR szBuf, DWORD dwLen)
{
if (g_pfnSymGetSymFromAddr == NULL ||
g_pfnSymGetLineFromAddr == NULL)
return 0;
InitSymEng( );
// Start looking up the exception address.
PIMAGEHLP_SYMBOL pSym = (PIMAGEHLP_SYMBOL)&g_stSymbol;
ZeroMemory(pSym , SYM_BUFF_SIZE );
pSym->SizeOfStruct = sizeof ( IMAGEHLP_SYMBOL ) ;
pSym->MaxNameLength = SYM_BUFF_SIZE - sizeof ( IMAGEHLP_SYMBOL ) ;
ZeroMemory ( &g_stLine , sizeof ( IMAGEHLP_LINE ) ) ;
g_stLine.SizeOfStruct = sizeof ( IMAGEHLP_LINE ) ;
DWORD dwDisp = 0;
char szModPath[ MAX_PATH + 1 ];
if (!GetShortModuleNameFromAddr(pAddr, szModPath, MAX_PATH))
return 0;
DWORD dwRet = 0;
if (g_pfnSymGetSymFromAddr(GetCurrentProcess(), (DWORD)pAddr , &dwDisp, pSym) &&
g_pfnSymGetLineFromAddr ( GetCurrentProcess (), (DWORD)pAddr, &dwDisp , &g_stLine ))
{
dwRet = _snprintf(szBuf , dwLen, "%hs(%d) : %s ( %s )\n",
g_stLine.FileName, g_stLine.LineNumber,
pSym->Name, szModPath);
}
else
{
dwRet = _snprintf(szBuf , dwLen, "<no symbols> : 0x%08X ( %s )\n",
pAddr, szModPath);
}
return (dwRet < 0 ? dwLen : dwRet);
}
DWORD GetStackAddresses(CONTEXT* pContext, PVOID* ppAddr, DWORD dwMaxAddr)
{
DWORD dwAddr = dwMaxAddr;
__try
{
// Initialize the symbol engine in case it is not initialized.
InitSymEng ( ) ;
if (NULL == g_pfnSymGetSymFromAddr ||
NULL == g_pfnStackWalk ||
NULL == g_pfnSymFunctionTableAccess ||
NULL == g_pfnSymGetModuleBase)
return 0 ;
HANDLE hProcess = GetCurrentProcess();
// Initialize the STACKFRAME structure.
ZeroMemory ( &g_stFrame , sizeof ( STACKFRAME ) ) ;
CONTEXT context = *pContext;
#ifdef _X86_
g_stFrame.AddrPC.Offset = context.Eip ;
g_stFrame.AddrPC.Mode = AddrModeFlat ;
g_stFrame.AddrStack.Offset = context.Esp ;
g_stFrame.AddrStack.Mode = AddrModeFlat ;
g_stFrame.AddrFrame.Offset = context.Ebp ;
g_stFrame.AddrFrame.Mode = AddrModeFlat ;
#else
g_stFrame.AddrPC.Offset = (DWORD)context.Fir ;
g_stFrame.AddrPC.Mode = AddrModeFlat ;
g_stFrame.AddrReturn.Offset = (DWORD)context.IntRa;
g_stFrame.AddrReturn.Mode = AddrModeFlat ;
g_stFrame.AddrStack.Offset = (DWORD)context.IntSp;
g_stFrame.AddrStack.Mode = AddrModeFlat ;
g_stFrame.AddrFrame.Offset = (DWORD)context.IntFp;
g_stFrame.AddrFrame.Mode = AddrModeFlat ;
#endif
while(g_pfnStackWalk ( CH_MACHINE, hProcess, GetCurrentThread ( ),
&g_stFrame, &context, NULL ,
g_pfnSymFunctionTableAccess ,
g_pfnSymGetModuleBase, NULL ) && g_stFrame.AddrFrame.Offset && dwAddr--)
{
*(ppAddr++) = (PVOID)g_stFrame.AddrPC.Offset;
}
}
__except (EXCEPTION_EXECUTE_HANDLER)
{
}
return dwMaxAddr - dwAddr;
}
int SymEng_LoadModule(char *pszFile, DWORD64 *pdwBase)
{
static int iStatus = -1;
if (iStatus < 0)
{
iStatus = InitSymEng();
if (iStatus < 0) return iStatus;
}
if (!(*pdwBase = SymLoadModule64(GetCurrentProcess(), 0, pszFile, 0, 0, 0)))
{
TRACE("SymLoadModule64 %s failed: %08X", pszFile, GetLastError());
return -3;
}
return 0;
}
