* DWARF:

- DwarfUtils::GetDeclarationLocation(): Line/column numbers are one-based.
  - Added line number program interpretation (LineNumberProgram).
* FunctionDebugInfo: Return the source file (LocatableFile) instead of the
  file name.
* FileManager/LocatableEntry: Fixed handling when a LocatableEntry is
  unreferenced. There was a race condition before, since an unreferenced entry
  could be referenced and unreferenced again before removing it from the hash
  table, which could lead to double deletion. Now we never reuse an unreferenced
  entry and just remove it from the hash table when encountering one.
* FileManager/SourceFile: Added class SourceFile which loads a source file from
  disk and slices it into lines. Managed by FileManager.
* Added class FileSourceCode, a SourceCode implementation using a SourceFile as
  line provider. The statement management works pretty much exactly as in
  DissassembledCode.
* DwarfImageDebugInfo: Implemented LoadSourceCode for real. It creates a
  FileSourceCode and uses the DWARF line number information for the statement
  information. This basically gets the source level view going, though there
  are still several problems -- stepping doesn't work perfectly yet, the source
  isn't found for all functions, there's no handling of duplicate functions (no
  idea why gcc generates them in the first place), etc.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31382 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/apps/debugger/model/FileSourceCode.h

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2009, Ingo Weinhold, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef FILE_SOURCE_CODE_H
+#define FILE_SOURCE_CODE_H
+
+#include <ObjectList.h>
+
+#include "SourceCode.h"
+
+
+class ContiguousStatement;
+class SourceFile;
+
+
+class FileSourceCode : public SourceCode {
+public:
+								FileSourceCode(SourceFile* file);
+	virtual						~FileSourceCode();
+
+			status_t			Init();
+			status_t			AddStatement(ContiguousStatement* statement);
+
+	virtual	int32				CountLines() const;
+	virtual	const char*			LineAt(int32 index) const;
+
+	virtual	int32				CountStatements() const;
+	virtual	Statement*			StatementAt(int32 index) const;
+	virtual	Statement*			StatementAtLine(int32 index) const;
+	virtual	Statement*			StatementAtAddress(target_addr_t address) const;
+
+	virtual	TargetAddressRange	StatementAddressRange() const;
+
+private:
+			typedef BObjectList<ContiguousStatement> StatementList;
+
+private:
+	static	int					_CompareStatements(
+									const ContiguousStatement* a,
+									const ContiguousStatement* b);
+	static	int					_CompareAddressStatement(
+									const target_addr_t* address,
+									const ContiguousStatement* statement);
+
+private:
+			SourceFile*			fFile;
+			Statement**			fLineStatements;
+			StatementList		fStatements;
+};
+
+
+#endif	// FILE_BASED_SOURCE_CODE_H