thread.c File Reference

#include <rtl.h>
#include "i386/ketypes.h"
#include <debug.h>

Include dependency graph for thread.c:

Go to the source code of this file.

Macros
#define	NDEBUG

Functions
VOID NTAPI	RtlInitializeContext (_In_ HANDLE ProcessHandle, _Out_ PCONTEXT ThreadContext, _In_opt_ PVOID ThreadStartParam, _In_ PTHREAD_START_ROUTINE ThreadStartAddress, _In_ PVOID StackBase)
NTSTATUS NTAPI	RtlQueueApcWow64Thread (_In_ HANDLE ThreadHandle, _In_ PKNORMAL_ROUTINE ApcRoutine, _In_opt_ PVOID NormalContext, _In_opt_ PVOID SystemArgument1, _In_opt_ PVOID SystemArgument2)

Macro Definition Documentation

NDEBUG

#define NDEBUG

Definition at line 17 of file thread.c.

Function Documentation

RtlInitializeContext()

VOID NTAPI RtlInitializeContext	(	_In_ HANDLE	ProcessHandle,
		_Out_ PCONTEXT	ThreadContext,
		_In_opt_ PVOID	ThreadStartParam,
		_In_ PTHREAD_START_ROUTINE	ThreadStartAddress,
		_In_ PVOID	StackBase
	)

Definition at line 27 of file thread.c.

{
    DPRINT("RtlInitializeContext: (hProcess: %p, ThreadContext: %p, StackBase: %p\n",
            ProcessHandle, ThreadContext, StackBase);
 
    /*
     * Set the Initial Registers
     * This is based on NT's default values -- crazy apps might expect this...
     */
    ThreadContext->Ebp = 0;
    ThreadContext->Eax = 0;
    ThreadContext->Ebx = 1;
    ThreadContext->Ecx = 2;
    ThreadContext->Edx = 3;
    ThreadContext->Esi = 4;
    ThreadContext->Edi = 5;
 
    /* Set the Selectors */
    ThreadContext->SegGs = 0;
    ThreadContext->SegFs = KGDT_R3_TEB;
    ThreadContext->SegEs = KGDT_R3_DATA;
    ThreadContext->SegDs = KGDT_R3_DATA;
    ThreadContext->SegSs = KGDT_R3_DATA;
    ThreadContext->SegCs = KGDT_R3_CODE;
 
    /* Enable Interrupts */
    ThreadContext->EFlags = EFLAGS_INTERRUPT_MASK;
 
    /* Settings passed */
    ThreadContext->Eip = (ULONG)ThreadStartAddress;
    ThreadContext->Esp = (ULONG)StackBase;
 
    /* Only the basic Context is initialized */
    ThreadContext->ContextFlags = CONTEXT_CONTROL |
                                  CONTEXT_INTEGER |
                                  CONTEXT_SEGMENTS;
 
    /* Set up ESP to the right value */
    ThreadContext->Esp -= sizeof(PVOID);
    ZwWriteVirtualMemory(ProcessHandle,
                         (PVOID)ThreadContext->Esp,
                         (PVOID)&ThreadStartParam,
                         sizeof(PVOID),
                         NULL);
 
    /* Push it down one more notch for RETEIP */
    ThreadContext->Esp -= sizeof(PVOID);
}

Referenced by RtlCreateUserThread(), and START_TEST().

RtlQueueApcWow64Thread()

NTSTATUS NTAPI RtlQueueApcWow64Thread	(	_In_ HANDLE	ThreadHandle,
		_In_ PKNORMAL_ROUTINE	ApcRoutine,
		_In_opt_ PVOID	NormalContext,
		_In_opt_ PVOID	SystemArgument1,
		_In_opt_ PVOID	SystemArgument2
	)

Definition at line 83 of file thread.c.

{
    return NtQueueApcThread(ThreadHandle,
                            ApcRoutine,
                            NormalContext,
                            SystemArgument1,
                            SystemArgument2);
}