ホーム › System.Diagnostics.Debug › RtlUnwindEx

RtlUnwindEx

関数

指定フレームまで例外処理のスタック巻き戻しを実行する。

DLLKERNEL32.dll呼出規約winapi

シグネチャ

// KERNEL32.dll
#include <windows.h>

void RtlUnwindEx(
    void* TargetFrame,   // optional
    void* TargetIp,   // optional
    EXCEPTION_RECORD* ExceptionRecord,   // optional
    void* ReturnValue,
    CONTEXT* ContextRecord,
    UNWIND_HISTORY_TABLE* HistoryTable   // optional
);

パラメーター

名前	型	方向
TargetFrame	void*	inoptional
TargetIp	void*	inoptional
ExceptionRecord	EXCEPTION_RECORD*	inoptional
ReturnValue	void*	in
ContextRecord	CONTEXT*	in
HistoryTable	UNWIND_HISTORY_TABLE*	inoptional

戻り値の型: void

各言語での呼び出し定義

// KERNEL32.dll
#include <windows.h>

void RtlUnwindEx(
    void* TargetFrame,   // optional
    void* TargetIp,   // optional
    EXCEPTION_RECORD* ExceptionRecord,   // optional
    void* ReturnValue,
    CONTEXT* ContextRecord,
    UNWIND_HISTORY_TABLE* HistoryTable   // optional
);

[DllImport("KERNEL32.dll", ExactSpelling = true)]
static extern void RtlUnwindEx(
    IntPtr TargetFrame,   // void* optional
    IntPtr TargetIp,   // void* optional
    IntPtr ExceptionRecord,   // EXCEPTION_RECORD* optional
    IntPtr ReturnValue,   // void*
    IntPtr ContextRecord,   // CONTEXT*
    IntPtr HistoryTable   // UNWIND_HISTORY_TABLE* optional
);

<DllImport("KERNEL32.dll", ExactSpelling:=True)>
Public Shared Sub RtlUnwindEx(
    TargetFrame As IntPtr,   ' void* optional
    TargetIp As IntPtr,   ' void* optional
    ExceptionRecord As IntPtr,   ' EXCEPTION_RECORD* optional
    ReturnValue As IntPtr,   ' void*
    ContextRecord As IntPtr,   ' CONTEXT*
    HistoryTable As IntPtr   ' UNWIND_HISTORY_TABLE* optional
)
End Sub

' TargetFrame : void* optional
' TargetIp : void* optional
' ExceptionRecord : EXCEPTION_RECORD* optional
' ReturnValue : void*
' ContextRecord : CONTEXT*
' HistoryTable : UNWIND_HISTORY_TABLE* optional
Declare PtrSafe Sub RtlUnwindEx Lib "kernel32" ( _
    ByVal TargetFrame As LongPtr, _
    ByVal TargetIp As LongPtr, _
    ByVal ExceptionRecord As LongPtr, _
    ByVal ReturnValue As LongPtr, _
    ByVal ContextRecord As LongPtr, _
    ByVal HistoryTable As LongPtr)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

RtlUnwindEx = ctypes.windll.kernel32.RtlUnwindEx
RtlUnwindEx.restype = None
RtlUnwindEx.argtypes = [
    ctypes.POINTER(None),  # TargetFrame : void* optional
    ctypes.POINTER(None),  # TargetIp : void* optional
    ctypes.c_void_p,  # ExceptionRecord : EXCEPTION_RECORD* optional
    ctypes.POINTER(None),  # ReturnValue : void*
    ctypes.c_void_p,  # ContextRecord : CONTEXT*
    ctypes.c_void_p,  # HistoryTable : UNWIND_HISTORY_TABLE* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
RtlUnwindEx = Fiddle::Function.new(
  lib['RtlUnwindEx'],
  [
    Fiddle::TYPE_VOIDP,  # TargetFrame : void* optional
    Fiddle::TYPE_VOIDP,  # TargetIp : void* optional
    Fiddle::TYPE_VOIDP,  # ExceptionRecord : EXCEPTION_RECORD* optional
    Fiddle::TYPE_VOIDP,  # ReturnValue : void*
    Fiddle::TYPE_VOIDP,  # ContextRecord : CONTEXT*
    Fiddle::TYPE_VOIDP,  # HistoryTable : UNWIND_HISTORY_TABLE* optional
  ],
  Fiddle::TYPE_VOID)

#[link(name = "kernel32")]
extern "system" {
    fn RtlUnwindEx(
        TargetFrame: *mut (),  // void* optional
        TargetIp: *mut (),  // void* optional
        ExceptionRecord: *mut EXCEPTION_RECORD,  // EXCEPTION_RECORD* optional
        ReturnValue: *mut (),  // void*
        ContextRecord: *mut CONTEXT,  // CONTEXT*
        HistoryTable: *mut UNWIND_HISTORY_TABLE  // UNWIND_HISTORY_TABLE* optional
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll")]
public static extern void RtlUnwindEx(IntPtr TargetFrame, IntPtr TargetIp, IntPtr ExceptionRecord, IntPtr ReturnValue, IntPtr ContextRecord, IntPtr HistoryTable);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_RtlUnwindEx' -Namespace Win32 -PassThru
# $api::RtlUnwindEx(TargetFrame, TargetIp, ExceptionRecord, ReturnValue, ContextRecord, HistoryTable)

#uselib "KERNEL32.dll"
#func global RtlUnwindEx "RtlUnwindEx" sptr, sptr, sptr, sptr, sptr, sptr
; RtlUnwindEx TargetFrame, TargetIp, varptr(ExceptionRecord), ReturnValue, varptr(ContextRecord), varptr(HistoryTable)
; TargetFrame : void* optional -> "sptr"
; TargetIp : void* optional -> "sptr"
; ExceptionRecord : EXCEPTION_RECORD* optional -> "sptr"
; ReturnValue : void* -> "sptr"
; ContextRecord : CONTEXT* -> "sptr"
; HistoryTable : UNWIND_HISTORY_TABLE* optional -> "sptr"

出力引数:

#uselib "KERNEL32.dll"
#func global RtlUnwindEx "RtlUnwindEx" sptr, sptr, var, sptr, var, var
; RtlUnwindEx TargetFrame, TargetIp, ExceptionRecord, ReturnValue, ContextRecord, HistoryTable
; TargetFrame : void* optional -> "sptr"
; TargetIp : void* optional -> "sptr"
; ExceptionRecord : EXCEPTION_RECORD* optional -> "var"
; ReturnValue : void* -> "sptr"
; ContextRecord : CONTEXT* -> "var"
; HistoryTable : UNWIND_HISTORY_TABLE* optional -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。#uselib "KERNEL32.dll"
#func global RtlUnwindEx "RtlUnwindEx" sptr, sptr, sptr, sptr, sptr, sptr
; RtlUnwindEx TargetFrame, TargetIp, varptr(ExceptionRecord), ReturnValue, varptr(ContextRecord), varptr(HistoryTable)
; TargetFrame : void* optional -> "sptr"
; TargetIp : void* optional -> "sptr"
; ExceptionRecord : EXCEPTION_RECORD* optional -> "sptr"
; ReturnValue : void* -> "sptr"
; ContextRecord : CONTEXT* -> "sptr"
; HistoryTable : UNWIND_HISTORY_TABLE* optional -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; void RtlUnwindEx(void* TargetFrame, void* TargetIp, EXCEPTION_RECORD* ExceptionRecord, void* ReturnValue, CONTEXT* ContextRecord, UNWIND_HISTORY_TABLE* HistoryTable)
#uselib "KERNEL32.dll"
#func global RtlUnwindEx "RtlUnwindEx" intptr, intptr, var, intptr, var, var
; RtlUnwindEx TargetFrame, TargetIp, ExceptionRecord, ReturnValue, ContextRecord, HistoryTable
; TargetFrame : void* optional -> "intptr"
; TargetIp : void* optional -> "intptr"
; ExceptionRecord : EXCEPTION_RECORD* optional -> "var"
; ReturnValue : void* -> "intptr"
; ContextRecord : CONTEXT* -> "var"
; HistoryTable : UNWIND_HISTORY_TABLE* optional -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。; void RtlUnwindEx(void* TargetFrame, void* TargetIp, EXCEPTION_RECORD* ExceptionRecord, void* ReturnValue, CONTEXT* ContextRecord, UNWIND_HISTORY_TABLE* HistoryTable)
#uselib "KERNEL32.dll"
#func global RtlUnwindEx "RtlUnwindEx" intptr, intptr, intptr, intptr, intptr, intptr
; RtlUnwindEx TargetFrame, TargetIp, varptr(ExceptionRecord), ReturnValue, varptr(ContextRecord), varptr(HistoryTable)
; TargetFrame : void* optional -> "intptr"
; TargetIp : void* optional -> "intptr"
; ExceptionRecord : EXCEPTION_RECORD* optional -> "intptr"
; ReturnValue : void* -> "intptr"
; ContextRecord : CONTEXT* -> "intptr"
; HistoryTable : UNWIND_HISTORY_TABLE* optional -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procRtlUnwindEx = kernel32.NewProc("RtlUnwindEx")
)

// TargetFrame (void* optional), TargetIp (void* optional), ExceptionRecord (EXCEPTION_RECORD* optional), ReturnValue (void*), ContextRecord (CONTEXT*), HistoryTable (UNWIND_HISTORY_TABLE* optional)
r1, _, err := procRtlUnwindEx.Call(
	uintptr(TargetFrame),
	uintptr(TargetIp),
	uintptr(ExceptionRecord),
	uintptr(ReturnValue),
	uintptr(ContextRecord),
	uintptr(HistoryTable),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure RtlUnwindEx(
  TargetFrame: Pointer;   // void* optional
  TargetIp: Pointer;   // void* optional
  ExceptionRecord: Pointer;   // EXCEPTION_RECORD* optional
  ReturnValue: Pointer;   // void*
  ContextRecord: Pointer;   // CONTEXT*
  HistoryTable: Pointer   // UNWIND_HISTORY_TABLE* optional
); stdcall;
  external 'KERNEL32.dll' name 'RtlUnwindEx';

result := DllCall("KERNEL32\RtlUnwindEx"
    , "Ptr", TargetFrame   ; void* optional
    , "Ptr", TargetIp   ; void* optional
    , "Ptr", ExceptionRecord   ; EXCEPTION_RECORD* optional
    , "Ptr", ReturnValue   ; void*
    , "Ptr", ContextRecord   ; CONTEXT*
    , "Ptr", HistoryTable   ; UNWIND_HISTORY_TABLE* optional
    , "Int")   ; return: void

●RtlUnwindEx(TargetFrame, TargetIp, ExceptionRecord, ReturnValue, ContextRecord, HistoryTable) = DLL("KERNEL32.dll", "int RtlUnwindEx(void*, void*, void*, void*, void*, void*)")
# 呼び出し: RtlUnwindEx(TargetFrame, TargetIp, ExceptionRecord, ReturnValue, ContextRecord, HistoryTable)
# TargetFrame : void* optional -> "void*"
# TargetIp : void* optional -> "void*"
# ExceptionRecord : EXCEPTION_RECORD* optional -> "void*"
# ReturnValue : void* -> "void*"
# ContextRecord : CONTEXT* -> "void*"
# HistoryTable : UNWIND_HISTORY_TABLE* optional -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。