我正在搜索可能与单元初始化顺序相关的错误。有没有办法查看哪个initialization
部分执行时?我需要知道订单。这是在调试期间,所以我拥有Delphi IDE的全部功能,在我的案例中是Delphi 2009。
我可以设置断点,但是当有很多单位时,这是相当繁琐的。
你有什么建议吗?
答案 0 :(得分:10)
以下是我刚刚在D2010中测试过的一些代码,请注意您需要在System.InitUnits中设置一个断点并获取InitContext var(@InitContext)的地址。然后修改CtxPtr以使此地址仍然运行。 (也许有人知道更聪明的方法)。
procedure TForm3.Button2Click(Sender: TObject);
var
sl: TStringList;
ps: PShortString;
CtxPtr: PInitContext;
begin
// Get the address by setting a BP in SysUtils.InitUnits (or map file?)
CtxPtr := PInitContext($4C3AE8);
sl := TStringList.Create;
try
ps := CtxPtr^.Module^.TypeInfo^.UnitNames;
for i := 0 to CtxPtr^.Module^.TypeInfo^.UnitCount - 1 do
begin
sl.Add(ps^);
// Move to next unit
DWORD(ps) := DWORD(ps) + Length(ps^) + 1;
end;
Memo1.Lines.Assign(sl);
finally
sl.Free;
end;
end;
/ EDIT:这是一个使用JclDebug和mapfile的版本:
type
TForm3 = class(TForm)
...
private
{ Private declarations }
var
Segments: array of DWORD;
procedure PublicsByValue(Sender: TObject; const Address: TJclMapAddress; const Name: string);
procedure MapSegment(Sender: TObject; const Address: TJclMapAddress; Len: Integer; const GroupName, UnitName: string);
procedure MapClassTable(Sender: TObject; const Address: TJclMapAddress; Len: Integer; const SectionName, GroupName: string);
public
{ Public declarations }
end;
var
Form3: TForm3;
CtxPtr: PInitContext = nil; // Global var
procedure TForm3.MapClassTable(Sender: TObject; const Address: TJclMapAddress;
Len: Integer; const SectionName, GroupName: string);
begin
SetLength(Segments, Length(Segments) + 1);
SegMents[Address.Segment-1] := Address.Offset;
end;
procedure TForm3.PublicsByValue(Sender: TObject; const Address: TJclMapAddress;
const Name: string);
const
InitContextStr = 'System.InitContext';
begin
if RightStr(Name, Length(InitContextStr)) = InitContextStr then
begin
CtxPtr := PInitContext(Segments[Address.Segment-1] + Address.Offset);
end;
end;
procedure TForm3.Button2Click(Sender: TObject);
var
MapParser: TJclMapParser;
MapFile: String;
sl: TStringList;
ps: PShortString;
i: Integer;
begin
MapFile := ChangeFileExt(Application.ExeName, '.map');
MapParser := TJclMapParser.Create(MapFile);
try
MapParser.OnPublicsByValue := PublicsByValue;
MapParser.OnClassTable := MapClassTable;
MapParser.Parse;
finally
MapParser.Free;
end;
if CtxPtr = nil then
Exit;
sl := TStringList.Create;
try
ps := CtxPtr^.Module^.TypeInfo^.UnitNames;
for i := 0 to CtxPtr^.Module^.TypeInfo^.UnitCount - 1 do
begin
sl.Add(ps^);
// Move to next unit
DWORD(ps) := DWORD(ps) + Length(ps^) + 1;
end;
Memo1.Lines.Assign(sl);
finally
sl.Free;
end;
end;
我的案例输出:
Variants
VarUtils
Windows
Types
SysInit
System
SysConst
SysUtils
Character
RTLConsts
Math
StrUtils
ImageHlp
MainUnit
JwaWinNetWk
JwaWinType
JwaWinNT
JwaWinDLLNames
JwaWinError
StdCtrls
Dwmapi
UxTheme
SyncObjs
Classes
ActiveX
Messages
TypInfo
TimeSpan
CommCtrl
Themes
Controls
Forms
StdActns
ComCtrls
CommDlg
ShlObj
StructuredQueryCondition
PropSys
ObjectArray
UrlMon
WinInet
RegStr
ShellAPI
ComStrs
Consts
Printers
Graphics
Registry
IniFiles
IOUtils
Masks
DateUtils
Wincodec
WinSpool
ActnList
Menus
ImgList
Contnrs
GraphUtil
ZLib
ListActns
ExtCtrls
Dialogs
HelpIntfs
MultiMon
Dlgs
WideStrUtils
ToolWin
RichEdit
Clipbrd
FlatSB
Imm
TpcShrd
/ EDIT2:这里是D2009的一个版本(需要JclDebug):
unit MainUnit;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StrUtils, JclDebug, StdCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
Memo1: TMemo;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
var
Segments: array of DWORD;
procedure PublicsByValue(Sender: TObject; const Address: TJclMapAddress; const Name: string);
procedure MapClassTable(Sender: TObject; const Address: TJclMapAddress; Len: Integer; const SectionName, GroupName: string);
public
{ Public declarations }
end;
var
Form1: TForm1;
CtxPtr: PInitContext = nil; // Global var
Symbols: TStringList;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
var
MapParser: TJclMapParser;
MapFile: String;
sl: TStringList;
ps: PShortString;
i: Integer;
s: String;
Idx: Integer;
begin
MapFile := ChangeFileExt(Application.ExeName, '.map');
MapParser := TJclMapParser.Create(MapFile);
try
MapParser.OnPublicsByValue := PublicsByValue;
MapParser.OnClassTable := MapClassTable;
Memo1.Lines.BeginUpdate;
MapParser.Parse;
Memo1.Lines.EndUpdate;
finally
MapParser.Free;
end;
if CtxPtr = nil then
Exit;
sl := TStringList.Create;
try
for i := 0 to CtxPtr^.InitTable.UnitCount-1 do
begin
if Assigned(CtxPtr^.InitTable.UnitInfo^[i].Init) then
begin
s := Format('$%.8x', [DWORD(CtxPtr^.InitTable.UnitInfo^[i].Init)]);
Idx := Symbols.IndexOfObject(TObject(CtxPtr^.InitTable.UnitInfo^[i].Init));
if Idx > -1 then
begin
Memo1.Lines.Add(Format('%.4d: %s', [i, Symbols[Idx]]));
end;
end;
end;
finally
sl.Free;
end;
end;
procedure TForm1.MapClassTable(Sender: TObject; const Address: TJclMapAddress;
Len: Integer; const SectionName, GroupName: string);
begin
SetLength(Segments, Length(Segments) + 1);
SegMents[Address.Segment-1] := Address.Offset;
end;
procedure TForm1.PublicsByValue(Sender: TObject; const Address: TJclMapAddress;
const Name: string);
const
InitContextStr = 'System.InitContext';
begin
if RightStr(Name, Length(InitContextStr)) = InitContextStr then
begin
CtxPtr := PInitContext(Segments[Address.Segment-1] + Address.Offset);
end
else begin
Symbols.AddObject(Name, TObject(Segments[Address.Segment-1] + Address.Offset));
end;
end;
initialization
Symbols := TStringList.Create;
Symbols.Sorted := True;
Symbols.Duplicates := dupIgnore;
finalization
FreeAndNil(Symbols);
end.
我系统上的输出(Unitname.Unitname实际上是Unitname.Initialization):
0001: System.System
0003: Windows.Windows
0011: SysUtils.SysUtils
0012: VarUtils.VarUtils
0013: Variants.Variants
0014: TypInfo.TypInfo
0016: Classes.Classes
0017: IniFiles.IniFiles
0018: Registry.Registry
0020: Graphics.Graphics
0023: SyncObjs.SyncObjs
0024: UxTheme.UxTheme
0025: MultiMon.MultiMon
0027: ActnList.ActnList
0028: DwmApi.DwmApi
0029: Controls.Controls
0030: Themes.Themes
0032: Menus.Menus
0033: HelpIntfs.HelpIntfs
0034: FlatSB.FlatSB
0036: Printers.Printers
0047: GraphUtil.GraphUtil
0048: ExtCtrls.ExtCtrls
0051: ComCtrls.ComCtrls
0054: Dialogs.Dialogs
0055: Clipbrd.Clipbrd
0057: Forms.Forms
0058: JclResources.JclResources
0059: JclBase.JclBase
0061: JclWin32.JclWin32
0063: ComObj.ComObj
0064: AnsiStrings.AnsiStrings
0065: JclLogic.JclLogic
0066: JclStringConversions.JclStringConversions
0067: JclCharsets.JclCharsets
0068: Jcl8087.Jcl8087
0073: JclIniFiles.JclIniFiles
0074: JclSysInfo.JclSysInfo
0075: JclUnicode.JclUnicode
0076: JclWideStrings.JclWideStrings
0077: JclRegistry.JclRegistry
0078: JclSynch.JclSynch
0079: JclMath.JclMath
0080: JclStreams.JclStreams
0081: JclAnsiStrings.JclAnsiStrings
0082: JclStrings.JclStrings
0083: JclShell.JclShell
0084: JclSecurity.JclSecurity
0085: JclDateTime.JclDateTime
0086: JclFileUtils.JclFileUtils
0087: JclConsole.JclConsole
0088: JclSysUtils.JclSysUtils
0089: JclUnitVersioning.JclUnitVersioning
0090: JclPeImage.JclPeImage
0091: JclTD32.JclTD32
0092: JclHookExcept.JclHookExcept
0093: JclDebug.JclDebug
0094: MainUnit.MainUnit
答案 1 :(得分:7)
对于界面使用列表中的单位, 的初始化部分 客户使用的单位在中执行 单位出现的顺序 客户的使用条款。
请参阅在线帮助\ Programs and Units \初始化部分和本文:Understanding Delphi Unit initialization order
ICARUS为使用报告计算运行时初始化顺序:
本节列出了在运行时执行初始化部分的顺序。
答案 2 :(得分:3)
您可以查看单位System和SysInit,然后查找InitUnits程序。在这里,您可以看到使用Delphi编译的每个模块都有一个单元初始化和终结指针列表。使用这些加上一个地图文件可能会给你一个确切的初始化顺序,但它会占用一些指针hackery。
答案 3 :(得分:0)
如何添加
OutputDebugString('In MyUnit initialization');
到初始化部分?
答案 4 :(得分:0)
您可以在所有初始化部分设置断点,这些断点不会中断,但会向调试器日志写入消息。它将为您提供与添加OutputDebugString('...')
调用相同的列表,但无需修改所有单元的源代码。