lazstacktrace: Utility program to convert stacktraces address into symbol names

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@1826 8e941d3f-bd1b-0410-a28a-d453659cc2b4

applications/lazstacktrace/lazstacktrace.lpi

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+<?xml version="1.0"?>
+<CONFIG>
+  <ProjectOptions>
+    <Version Value="9"/>
+    <General>
+      <MainUnit Value="0"/>
+      <ResourceType Value="res"/>
+      <UseXPManifest Value="True"/>
+      <Icon Value="0"/>
+      <ActiveWindowIndexAtStart Value="0"/>
+    </General>
+    <i18n>
+      <EnableI18N LFM="False"/>
+    </i18n>
+    <VersionInfo>
+      <StringTable ProductVersion=""/>
+    </VersionInfo>
+    <BuildModes Count="1" Active="Default">
+      <Item1 Name="Default" Default="True"/>
+    </BuildModes>
+    <PublishOptions>
+      <Version Value="2"/>
+      <IncludeFileFilter Value="*.(pas|pp|inc|lfm|lpr|lrs|lpi|lpk|sh|xml)"/>
+      <ExcludeFileFilter Value="*.(bak|ppu|o|so);*~;backup"/>
+    </PublishOptions>
+    <RunParams>
+      <local>
+        <FormatVersion Value="1"/>
+        <LaunchingApplication PathPlusParams="/usr/bin/xterm -T 'Lazarus Run Output' -e $(LazarusDir)/tools/runwait.sh $(TargetCmdLine)"/>
+      </local>
+    </RunParams>
+    <RequiredPackages Count="1">
+      <Item1>
+        <PackageName Value="LCL"/>
+      </Item1>
+    </RequiredPackages>
+    <Units Count="4">
+      <Unit0>
+        <Filename Value="lazstacktrace.lpr"/>
+        <IsPartOfProject Value="True"/>
+        <UnitName Value="lazstacktrace"/>
+        <UsageCount Value="21"/>
+      </Unit0>
+      <Unit1>
+        <Filename Value="mainform.pas"/>
+        <IsPartOfProject Value="True"/>
+        <ComponentName Value="Form1"/>
+        <ResourceBaseClass Value="Form"/>
+        <UnitName Value="mainform"/>
+        <IsVisibleTab Value="True"/>
+        <EditorIndex Value="0"/>
+        <WindowIndex Value="0"/>
+        <TopLine Value="30"/>
+        <CursorPos X="18" Y="33"/>
+        <UsageCount Value="21"/>
+        <Loaded Value="True"/>
+        <LoadedDesigner Value="True"/>
+      </Unit1>
+      <Unit2>
+        <Filename Value="../../../lazarus/lcl/include/control.inc"/>
+        <WindowIndex Value="0"/>
+        <TopLine Value="2262"/>
+        <CursorPos X="1" Y="2286"/>
+        <UsageCount Value="10"/>
+        <DefaultSyntaxHighlighter Value="Delphi"/>
+      </Unit2>
+      <Unit3>
+        <Filename Value="/usr/share/fpcsrc/packages/fcl-process/src/process.pp"/>
+        <UnitName Value="process"/>
+        <EditorIndex Value="1"/>
+        <WindowIndex Value="0"/>
+        <TopLine Value="1"/>
+        <CursorPos X="48" Y="25"/>
+        <UsageCount Value="10"/>
+        <Loaded Value="True"/>
+        <DefaultSyntaxHighlighter Value="Delphi"/>
+      </Unit3>
+    </Units>
+    <JumpHistory Count="30" HistoryIndex="29">
+      <Position1>
+        <Filename Value="mainform.pas"/>
+        <Caret Line="56" Column="1" TopLine="30"/>
+      </Position1>
+      <Position2>
+        <Filename Value="mainform.pas"/>
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+      <Position3>
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+      <Position16>
+        <Filename Value="mainform.pas"/>
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+      <Position17>
+        <Filename Value="mainform.pas"/>
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+      <Position22>
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+      <Position30>
+        <Filename Value="mainform.pas"/>
+        <Caret Line="33" Column="18" TopLine="30"/>
+      </Position30>
+    </JumpHistory>
+  </ProjectOptions>
+  <CompilerOptions>
+    <Version Value="10"/>
+    <Target>
+      <Filename Value="lazstacktrace"/>
+    </Target>
+    <SearchPaths>
+      <IncludeFiles Value="$(ProjOutDir)"/>
+      <UnitOutputDirectory Value="lib/$(TargetCPU)-$(TargetOS)"/>
+    </SearchPaths>
+    <Linking>
+      <Options>
+        <Win32>
+          <GraphicApplication Value="True"/>
+        </Win32>
+      </Options>
+    </Linking>
+    <Other>
+      <CompilerPath Value="$(CompPath)"/>
+    </Other>
+  </CompilerOptions>
+  <Debugging>
+    <Exceptions Count="3">
+      <Item1>
+        <Name Value="EAbort"/>
+      </Item1>
+      <Item2>
+        <Name Value="ECodetoolError"/>
+      </Item2>
+      <Item3>
+        <Name Value="EFOpenError"/>
+      </Item3>
+    </Exceptions>
+  </Debugging>
+</CONFIG>

applications/lazstacktrace/lazstacktrace.lpr

@@ -0,0 +1,21 @@
+program lazstacktrace;
+
+{$mode objfpc}{$H+}
+
+uses
+  {$IFDEF UNIX}{$IFDEF UseCThreads}
+  cthreads,
+  {$ENDIF}{$ENDIF}
+  Interfaces, // this includes the LCL widgetset
+  Forms, mainform
+  { you can add units after this };
+
+{$R *.res}
+
+begin
+  RequireDerivedFormResource := True;
+  Application.Initialize;
+  Application.CreateForm(TForm1, Form1);
+  Application.Run;
+end.
+

applications/lazstacktrace/mainform.lfm

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+object Form1: TForm1
+  Left = 313
+  Height = 447
+  Top = 186
+  Width = 400
+  Caption = 'Stacktrace resolver'
+  ClientHeight = 447
+  ClientWidth = 400
+  LCLVersion = '0.9.31'
+  object editGDBPath: TFileNameEdit
+    Left = 104
+    Height = 25
+    Top = 56
+    Width = 264
+    FileName = '/usr/bin/gdb'
+    DialogOptions = []
+    FilterIndex = 0
+    HideDirectories = False
+    ButtonWidth = 23
+    NumGlyphs = 0
+    MaxLength = 0
+    TabOrder = 0
+  end
+  object Label1: TLabel
+    Left = 11
+    Height = 18
+    Top = 63
+    Width = 83
+    Caption = 'Path to GDB:'
+    ParentColor = False
+  end
+  object Label2: TLabel
+    Left = 9
+    Height = 39
+    Top = 9
+    Width = 381
+    AutoSize = False
+    Caption = 'This Program resolves stacktraces generated by FPC apps using GDB. It adds the symbol names to addresses.'
+    ParentColor = False
+    WordWrap = True
+  end
+  object Label3: TLabel
+    Left = 11
+    Height = 18
+    Top = 120
+    Width = 78
+    Caption = 'Stack trace:'
+    ParentColor = False
+  end
+  object memoStacktrace: TMemo
+    AnchorSideRight.Control = Owner
+    AnchorSideRight.Side = asrBottom
+    AnchorSideBottom.Control = Owner
+    AnchorSideBottom.Side = asrBottom
+    Left = 8
+    Height = 260
+    Top = 143
+    Width = 387
+    Anchors = [akLeft, akRight, akBottom]
+    BorderSpacing.Right = 5
+    BorderSpacing.Bottom = 44
+    TabOrder = 1
+  end
+  object buttonResolveSymbols: TButton
+    AnchorSideBottom.Control = Owner
+    AnchorSideBottom.Side = asrBottom
+    Left = 136
+    Height = 30
+    Top = 412
+    Width = 123
+    Anchors = [akLeft, akBottom]
+    BorderSpacing.Bottom = 5
+    Caption = 'Resolve Symbols'
+    OnClick = buttonResolveSymbolsClick
+    TabOrder = 2
+  end
+  object Label4: TLabel
+    Left = 11
+    Height = 18
+    Top = 95
+    Width = 109
+    Caption = 'Path to Program:'
+    ParentColor = False
+  end
+  object editProgramPath: TFileNameEdit
+    Left = 128
+    Height = 25
+    Top = 95
+    Width = 240
+    FileName = '/home/felipe/Programas/lazarus-ccr/examples/androidlcl/android/libs/armeabi/libandroidlcltest.so'
+    DialogOptions = []
+    FilterIndex = 0
+    HideDirectories = False
+    ButtonWidth = 23
+    NumGlyphs = 0
+    MaxLength = 0
+    TabOrder = 3
+  end
+end

applications/lazstacktrace/mainform.pas

@@ -0,0 +1,81 @@
+unit mainform;
+
+{$mode objfpc}{$H+}
+
+interface
+
+uses
+  Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs, EditBtn,
+  StdCtrls, process;
+
+type
+
+  { TForm1 }
+
+  TForm1 = class(TForm)
+    buttonResolveSymbols: TButton;
+    editGDBPath: TFileNameEdit;
+    editProgramPath: TFileNameEdit;
+    Label1: TLabel;
+    Label2: TLabel;
+    Label3: TLabel;
+    Label4: TLabel;
+    memoStacktrace: TMemo;
+    procedure buttonResolveSymbolsClick(Sender: TObject);
+  private
+    { private declarations }
+  public
+    { public declarations }
+  end; 
+
+var
+  Form1: TForm1; 
+
+implementation
+
+{$R *.lfm}
+
+{ TForm1 }
+
+procedure TForm1.buttonResolveSymbolsClick(Sender: TObject);
+var
+  GDBProcess: TProcess;
+  GDBOutput: TStringList;
+  Str, StackStr, lCurAddress: string;
+  lAddressPos: SizeInt;
+  i: Integer;
+  StrGdbOutput: String;
+begin
+  GDBProcess := TProcess.Create(nil);
+  GDBOutput := TStringList.Create;
+  memoStacktrace.Lines.BeginUpdate;
+  try
+    for i := 0 to memoStacktrace.Lines.Count - 1 do
+    begin
+      // Obtain the stack address or skip this line
+      StackStr := memoStacktrace.Lines.Strings[i];
+      lAddressPos := Pos('$', StackStr);
+      if lAddressPos <= 0 then Continue;
+      lCurAddress := Copy(StackStr, lAddressPos+1, 8);
+
+      // Run GDB to get the symbol name
+      Str := Format('%s --batch "--eval-command=info symbol 0x%s" %s', [editGDBPath.FileName, lCurAddress, editProgramPath.FileName]);
+      GDBProcess.CommandLine := Str;
+      GDBProcess.Options := GDBProcess.Options + [poWaitOnExit, poUsePipes, poStderrToOutPut];
+      GDBProcess.Execute;
+      GDBOutput.LoadFromStream(GDBProcess.Output);
+      if GDBOutput.Count >= 1 then StrGdbOutput := GDBOutput.Strings[0]
+      else StrGdbOutput := '';
+
+      // Add the symbol name to the memo
+      memoStacktrace.Lines.Strings[i] := Format('%s %s', [StackStr, StrGdbOutput]);
+    end;
+  finally
+    GDBProcess.Free;
+    GDBOutput.Free;
+    memoStacktrace.Lines.EndUpdate;
+  end;
+end;
+
+end.
+