mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
138 lines
3.2 KiB
138 lines
3.2 KiB
/******************************Module*Header*******************************\
|
|
* Module Name: dbgfns.c
|
|
*
|
|
* Debugger extensions helper routines
|
|
*
|
|
* Created: 26-Jan-95
|
|
* Author: Drew Bliss
|
|
*
|
|
* Copyright (c) 1995 Microsoft Corporation
|
|
\**************************************************************************/
|
|
|
|
#include "precomp.c"
|
|
#pragma hdrstop
|
|
|
|
/******************************Public*Routine******************************\
|
|
*
|
|
* GetMemory
|
|
*
|
|
* Reads a value from debuggee memory
|
|
*
|
|
* History:
|
|
* Tue Jan 17 14:35:24 1995 -by- Drew Bliss [drewb]
|
|
* Created
|
|
*
|
|
\**************************************************************************/
|
|
|
|
BOOL GetMemory(PWINDBG_EXTENSION_APIS pwea,
|
|
HANDLE hCurrentProcess,
|
|
DWORD dwSrc, PVOID pvDst, DWORD cb)
|
|
{
|
|
BOOL fRet;
|
|
|
|
try
|
|
{
|
|
if (pwea->nSize >= sizeof(WINDBG_EXTENSION_APIS))
|
|
{
|
|
fRet = (BOOL)pwea->lpReadProcessMemoryRoutine(dwSrc, pvDst,
|
|
cb, NULL);
|
|
}
|
|
else
|
|
{
|
|
fRet = NT_SUCCESS(NtReadVirtualMemory(hCurrentProcess,
|
|
(LPVOID)dwSrc,
|
|
pvDst, cb, NULL));
|
|
}
|
|
}
|
|
except(EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
PRINT("Invalid address %p\n", dwSrc);
|
|
return FALSE;
|
|
}
|
|
|
|
if (!fRet)
|
|
{
|
|
PRINT("Unable to read memory at address %p\n", dwSrc);
|
|
}
|
|
|
|
return fRet;
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
*
|
|
* GetTeb
|
|
*
|
|
* Retrieves the TEB pointer for the given thread
|
|
* Returns a pointer to a static TEB so subsequent calls
|
|
* will overwrite TEB information
|
|
*
|
|
* History:
|
|
* Thu Jan 26 13:47:20 1995 -by- Drew Bliss [drewb]
|
|
* Created
|
|
*
|
|
\**************************************************************************/
|
|
|
|
PTEB GetTeb(PWINDBG_EXTENSION_APIS pwea,
|
|
HANDLE hCurrentProcess,
|
|
HANDLE hThread)
|
|
{
|
|
static TEB tebLocal;
|
|
NTSTATUS nts;
|
|
THREAD_BASIC_INFORMATION tbi;
|
|
|
|
nts = NtQueryInformationThread(hThread, ThreadBasicInformation,
|
|
&tbi, sizeof(tbi), NULL);
|
|
if (NT_SUCCESS(nts))
|
|
{
|
|
if (!GM_OBJ((DWORD)tbi.TebBaseAddress, tebLocal))
|
|
{
|
|
return NULL;
|
|
}
|
|
else
|
|
{
|
|
return &tebLocal;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
PRINT("Unable to retrieve thread information for %p\n", hThread);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
*
|
|
* IsCsrServerThread
|
|
*
|
|
* Determines whether the given thread is a CSR server thread or not
|
|
* Consider - Is this reliable?
|
|
*
|
|
* History:
|
|
* Tue Jan 31 13:38:50 1995 -by- Drew Bliss [drewb]
|
|
* Created
|
|
*
|
|
\**************************************************************************/
|
|
|
|
BOOL IsCsrServerThread(PWINDBG_EXTENSION_APIS pwea,
|
|
HANDLE hCurrentProcess,
|
|
HANDLE hThread)
|
|
{
|
|
PTEB pteb;
|
|
PCSR_QLPC_TEB pqteb;
|
|
|
|
pteb = GetTeb(pwea, hCurrentProcess, hThread);
|
|
if (pteb == NULL)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
pqteb = (PCSR_QLPC_TEB)&pteb->CsrQlpcTeb;
|
|
if (pqteb->ClientThread != NULL)
|
|
{
|
|
return TRUE;
|
|
}
|
|
else
|
|
{
|
|
return FALSE;
|
|
}
|
|
}
|