2005-12-21 19:48:16 +00:00
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//===-- llvm/CodeGen/DwarfWriter.cpp - Dwarf Framework ----------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by James M. Laskey and is distributed under the
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// University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains support for writing dwarf debug info into asm files.
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//
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//===----------------------------------------------------------------------===//
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2006-01-27 18:32:41 +00:00
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2006-01-04 22:28:25 +00:00
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#include "llvm/CodeGen/DwarfWriter.h"
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2005-12-21 19:48:16 +00:00
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2006-01-17 17:31:53 +00:00
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#include "llvm/ADT/StringExtras.h"
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2006-01-24 00:49:18 +00:00
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#include "llvm/Module.h"
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#include "llvm/Type.h"
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2006-01-04 13:52:30 +00:00
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#include "llvm/CodeGen/AsmPrinter.h"
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2006-01-04 22:28:25 +00:00
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#include "llvm/CodeGen/MachineDebugInfo.h"
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2006-01-26 20:21:46 +00:00
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#include "llvm/Support/Dwarf.h"
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2006-01-04 13:52:30 +00:00
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#include "llvm/Support/CommandLine.h"
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2006-01-24 00:49:18 +00:00
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#include "llvm/Support/Mangler.h"
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#include "llvm/Target/TargetMachine.h"
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2006-01-04 13:52:30 +00:00
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2006-01-04 22:28:25 +00:00
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#include <iostream>
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2006-01-04 13:52:30 +00:00
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2006-01-04 22:28:25 +00:00
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using namespace llvm;
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2006-02-27 22:37:23 +00:00
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using namespace llvm::dwarf;
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2006-01-04 13:52:30 +00:00
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static cl::opt<bool>
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DwarfVerbose("dwarf-verbose", cl::Hidden,
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2006-01-17 17:31:53 +00:00
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cl::desc("Add comments to Dwarf directives."));
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2006-01-04 13:52:30 +00:00
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2006-02-27 12:43:29 +00:00
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namespace llvm {
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2006-01-17 17:31:53 +00:00
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//===----------------------------------------------------------------------===//
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2006-02-27 12:43:29 +00:00
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// Forward declarations.
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//
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class CompileUnit;
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class DIE;
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2006-01-17 17:31:53 +00:00
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2006-02-27 17:27:12 +00:00
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//===----------------------------------------------------------------------===//
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2006-03-03 15:06:57 +00:00
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// CompileUnit - This dwarf writer support class manages information associate
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// with a source file.
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2006-02-27 17:27:12 +00:00
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class CompileUnit {
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private:
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CompileUnitDesc *Desc; // Compile unit debug descriptor.
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unsigned ID; // File ID for source.
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DIE *Die; // Compile unit die.
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std::map<std::string, DIE *> Globals; // A map of globally visible named
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// entities for this unit.
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public:
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CompileUnit(CompileUnitDesc *CUD, unsigned I, DIE *D)
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: Desc(CUD)
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, ID(I)
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, Die(D)
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, Globals()
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{}
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~CompileUnit();
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// Accessors.
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CompileUnitDesc *getDesc() const { return Desc; }
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unsigned getID() const { return ID; }
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DIE* getDie() const { return Die; }
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std::map<std::string, DIE *> &getGlobals() { return Globals; }
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/// hasContent - Return true if this compile unit has something to write out.
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///
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bool hasContent() const;
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/// AddGlobal - Add a new global entity to the compile unit.
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///
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void AddGlobal(const std::string &Name, DIE *Die);
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};
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2006-02-27 12:43:29 +00:00
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//===----------------------------------------------------------------------===//
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// DIEAbbrevData - Dwarf abbreviation data, describes the one attribute of a
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// Dwarf abbreviation.
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class DIEAbbrevData {
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private:
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unsigned Attribute; // Dwarf attribute code.
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unsigned Form; // Dwarf form code.
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public:
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DIEAbbrevData(unsigned A, unsigned F)
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: Attribute(A)
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, Form(F)
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{}
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2006-02-27 17:27:12 +00:00
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// Accessors.
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2006-02-27 12:43:29 +00:00
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unsigned getAttribute() const { return Attribute; }
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unsigned getForm() const { return Form; }
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/// operator== - Used by DIEAbbrev to locate entry.
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///
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bool operator==(const DIEAbbrevData &DAD) const {
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return Attribute == DAD.Attribute && Form == DAD.Form;
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2006-01-04 13:52:30 +00:00
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}
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2006-01-17 17:31:53 +00:00
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2006-02-27 12:43:29 +00:00
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/// operator!= - Used by DIEAbbrev to locate entry.
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///
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bool operator!=(const DIEAbbrevData &DAD) const {
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return Attribute != DAD.Attribute || Form != DAD.Form;
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2006-01-04 13:52:30 +00:00
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}
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2006-02-27 12:43:29 +00:00
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/// operator< - Used by DIEAbbrev to locate entry.
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///
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bool operator<(const DIEAbbrevData &DAD) const {
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return Attribute < DAD.Attribute ||
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(Attribute == DAD.Attribute && Form < DAD.Form);
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2006-01-17 17:31:53 +00:00
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}
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2006-02-27 12:43:29 +00:00
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};
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2006-01-17 17:31:53 +00:00
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2006-02-27 12:43:29 +00:00
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//===----------------------------------------------------------------------===//
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// DIEAbbrev - Dwarf abbreviation, describes the organization of a debug
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// information object.
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class DIEAbbrev {
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private:
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unsigned Tag; // Dwarf tag code.
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unsigned ChildrenFlag; // Dwarf children flag.
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std::vector<DIEAbbrevData> Data; // Raw data bytes for abbreviation.
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public:
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DIEAbbrev(unsigned T, unsigned C)
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: Tag(T)
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, ChildrenFlag(C)
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, Data()
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{}
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~DIEAbbrev() {}
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2006-02-27 17:27:12 +00:00
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// Accessors.
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2006-02-27 12:43:29 +00:00
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unsigned getTag() const { return Tag; }
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unsigned getChildrenFlag() const { return ChildrenFlag; }
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const std::vector<DIEAbbrevData> &getData() const { return Data; }
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void setChildrenFlag(unsigned CF) { ChildrenFlag = CF; }
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/// operator== - Used by UniqueVector to locate entry.
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///
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bool operator==(const DIEAbbrev &DA) const;
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/// operator< - Used by UniqueVector to locate entry.
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///
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bool operator<(const DIEAbbrev &DA) const;
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/// AddAttribute - Adds another set of attribute information to the
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/// abbreviation.
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void AddAttribute(unsigned Attribute, unsigned Form) {
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Data.push_back(DIEAbbrevData(Attribute, Form));
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2006-01-17 17:31:53 +00:00
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}
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2006-02-27 12:43:29 +00:00
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/// Emit - Print the abbreviation using the specified Dwarf writer.
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///
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void Emit(const DwarfWriter &DW) const;
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#ifndef NDEBUG
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void print(std::ostream &O);
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void dump();
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#endif
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};
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2006-01-17 17:31:53 +00:00
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2006-02-27 12:43:29 +00:00
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//===----------------------------------------------------------------------===//
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// DIEValue - A debug information entry value.
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//
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class DIEValue {
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public:
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enum {
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isInteger,
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isString,
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isLabel,
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isAsIsLabel,
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isDelta,
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2006-03-03 21:00:14 +00:00
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isEntry,
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isBlock
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2006-02-27 12:43:29 +00:00
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};
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unsigned Type; // Type of the value
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DIEValue(unsigned T) : Type(T) {}
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virtual ~DIEValue() {}
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// Implement isa/cast/dyncast.
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static bool classof(const DIEValue *) { return true; }
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/// EmitValue - Emit value via the Dwarf writer.
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///
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virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const = 0;
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/// SizeOf - Return the size of a value in bytes.
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///
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virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const = 0;
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};
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2006-01-17 17:31:53 +00:00
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2006-02-27 12:43:29 +00:00
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//===----------------------------------------------------------------------===//
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// DWInteger - An integer value DIE.
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//
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class DIEInteger : public DIEValue {
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private:
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uint64_t Integer;
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public:
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DIEInteger(uint64_t I) : DIEValue(isInteger), Integer(I) {}
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2006-01-17 17:31:53 +00:00
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2006-02-27 12:43:29 +00:00
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// Implement isa/cast/dyncast.
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static bool classof(const DIEInteger *) { return true; }
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static bool classof(const DIEValue *I) { return I->Type == isInteger; }
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2006-03-03 21:00:14 +00:00
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/// BestForm - Choose the best form for integer.
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///
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unsigned BestForm(bool IsSigned);
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2006-02-27 12:43:29 +00:00
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/// EmitValue - Emit integer of appropriate size.
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///
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virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const;
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/// SizeOf - Determine size of integer value in bytes.
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///
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virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const;
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};
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2006-01-17 17:31:53 +00:00
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2006-02-27 12:43:29 +00:00
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//===----------------------------------------------------------------------===//
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// DIEString - A string value DIE.
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//
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struct DIEString : public DIEValue {
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const std::string String;
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DIEString(const std::string &S) : DIEValue(isString), String(S) {}
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2006-01-17 17:31:53 +00:00
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2006-02-27 12:43:29 +00:00
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// Implement isa/cast/dyncast.
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static bool classof(const DIEString *) { return true; }
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static bool classof(const DIEValue *S) { return S->Type == isString; }
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/// EmitValue - Emit string value.
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///
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virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const;
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/// SizeOf - Determine size of string value in bytes.
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///
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virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const;
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};
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2006-01-17 17:31:53 +00:00
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2006-02-27 12:43:29 +00:00
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//===----------------------------------------------------------------------===//
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// DIEDwarfLabel - A Dwarf internal label expression DIE.
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//
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struct DIEDwarfLabel : public DIEValue {
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const DWLabel Label;
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DIEDwarfLabel(const DWLabel &L) : DIEValue(isLabel), Label(L) {}
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2006-01-17 17:31:53 +00:00
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2006-02-27 12:43:29 +00:00
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// Implement isa/cast/dyncast.
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static bool classof(const DIEDwarfLabel *) { return true; }
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static bool classof(const DIEValue *L) { return L->Type == isLabel; }
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/// EmitValue - Emit label value.
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///
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virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const;
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/// SizeOf - Determine size of label value in bytes.
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///
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virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const;
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};
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2006-01-17 17:31:53 +00:00
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2006-02-27 12:43:29 +00:00
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//===----------------------------------------------------------------------===//
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// DIEObjectLabel - A label to an object in code or data.
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//
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struct DIEObjectLabel : public DIEValue {
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const std::string Label;
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DIEObjectLabel(const std::string &L) : DIEValue(isAsIsLabel), Label(L) {}
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2006-01-17 17:31:53 +00:00
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2006-02-27 12:43:29 +00:00
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// Implement isa/cast/dyncast.
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static bool classof(const DIEObjectLabel *) { return true; }
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static bool classof(const DIEValue *L) { return L->Type == isAsIsLabel; }
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/// EmitValue - Emit label value.
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///
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virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const;
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/// SizeOf - Determine size of label value in bytes.
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///
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virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const;
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};
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2006-01-17 17:31:53 +00:00
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2006-02-27 12:43:29 +00:00
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//===----------------------------------------------------------------------===//
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// DIEDelta - A simple label difference DIE.
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//
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struct DIEDelta : public DIEValue {
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const DWLabel LabelHi;
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const DWLabel LabelLo;
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DIEDelta(const DWLabel &Hi, const DWLabel &Lo)
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: DIEValue(isDelta), LabelHi(Hi), LabelLo(Lo) {}
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2006-01-17 17:31:53 +00:00
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2006-02-27 12:43:29 +00:00
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// Implement isa/cast/dyncast.
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static bool classof(const DIEDelta *) { return true; }
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static bool classof(const DIEValue *D) { return D->Type == isDelta; }
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/// EmitValue - Emit delta value.
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///
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virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const;
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/// SizeOf - Determine size of delta value in bytes.
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///
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virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const;
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};
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//===----------------------------------------------------------------------===//
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// DIEntry - A pointer to a debug information entry.
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//
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struct DIEntry : public DIEValue {
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DIE *Entry;
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DIEntry(DIE *E) : DIEValue(isEntry), Entry(E) {}
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// Implement isa/cast/dyncast.
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static bool classof(const DIEntry *) { return true; }
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static bool classof(const DIEValue *E) { return E->Type == isEntry; }
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2006-03-03 21:00:14 +00:00
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/// EmitValue - Emit die entry offset.
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2006-02-27 12:43:29 +00:00
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///
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virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const;
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2006-03-03 21:00:14 +00:00
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/// SizeOf - Determine size of die entry in bytes.
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2006-02-27 12:43:29 +00:00
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///
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virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const;
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};
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2006-03-03 21:00:14 +00:00
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//===----------------------------------------------------------------------===//
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// DIEBlock - A block of values. Primarily used for location expressions.
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//
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struct DIEBlock : public DIEValue {
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unsigned Size; // Size in bytes excluding size header.
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std::vector<unsigned> Forms; // Data forms.
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|
|
std::vector<DIEValue *> Values; // Block values.
|
|
|
|
|
|
|
|
DIEBlock()
|
|
|
|
: DIEValue(isBlock)
|
|
|
|
, Size(0)
|
|
|
|
, Forms()
|
|
|
|
, Values()
|
|
|
|
{}
|
|
|
|
~DIEBlock();
|
|
|
|
|
|
|
|
// Implement isa/cast/dyncast.
|
|
|
|
static bool classof(const DIEBlock *) { return true; }
|
|
|
|
static bool classof(const DIEValue *E) { return E->Type == isBlock; }
|
|
|
|
|
|
|
|
/// ComputeSize - calculate the size of the block.
|
|
|
|
///
|
|
|
|
unsigned ComputeSize(DwarfWriter &DW);
|
|
|
|
|
|
|
|
/// BestForm - Choose the best form for data.
|
|
|
|
///
|
|
|
|
unsigned BestForm();
|
|
|
|
|
|
|
|
/// EmitValue - Emit block data.
|
|
|
|
///
|
|
|
|
virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const;
|
|
|
|
|
|
|
|
/// SizeOf - Determine size of block data in bytes.
|
|
|
|
///
|
|
|
|
virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const;
|
|
|
|
|
|
|
|
/// AddUInt - Add an unsigned integer value.
|
|
|
|
///
|
|
|
|
void AddUInt(unsigned Form, uint64_t Integer);
|
|
|
|
|
|
|
|
/// AddSInt - Add an signed integer value.
|
|
|
|
///
|
|
|
|
void AddSInt(unsigned Form, int64_t Integer);
|
|
|
|
|
|
|
|
/// AddString - Add a std::string value.
|
|
|
|
///
|
|
|
|
void AddString(unsigned Form, const std::string &String);
|
|
|
|
|
|
|
|
/// AddLabel - Add a Dwarf label value.
|
|
|
|
///
|
|
|
|
void AddLabel(unsigned Form, const DWLabel &Label);
|
|
|
|
|
|
|
|
/// AddObjectLabel - Add a non-Dwarf label value.
|
|
|
|
///
|
|
|
|
void AddObjectLabel(unsigned Form, const std::string &Label);
|
|
|
|
|
|
|
|
/// AddDelta - Add a label delta value.
|
|
|
|
///
|
|
|
|
void AddDelta(unsigned Form, const DWLabel &Hi, const DWLabel &Lo);
|
|
|
|
|
|
|
|
/// AddDIEntry - Add a DIE value.
|
|
|
|
///
|
|
|
|
void AddDIEntry(unsigned Form, DIE *Entry);
|
|
|
|
|
|
|
|
};
|
|
|
|
|
2006-02-27 12:43:29 +00:00
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// DIE - A structured debug information entry. Has an abbreviation which
|
|
|
|
// describes it's organization.
|
|
|
|
class DIE {
|
|
|
|
private:
|
|
|
|
DIEAbbrev *Abbrev; // Temporary buffer for abbreviation.
|
|
|
|
unsigned AbbrevID; // Decribing abbreviation ID.
|
|
|
|
unsigned Offset; // Offset in debug info section.
|
|
|
|
unsigned Size; // Size of instance + children.
|
|
|
|
std::vector<DIE *> Children; // Children DIEs.
|
|
|
|
std::vector<DIEValue *> Values; // Attributes values.
|
|
|
|
|
|
|
|
public:
|
|
|
|
DIE(unsigned Tag);
|
|
|
|
~DIE();
|
|
|
|
|
2006-02-27 17:27:12 +00:00
|
|
|
// Accessors.
|
2006-02-27 12:43:29 +00:00
|
|
|
unsigned getAbbrevID() const { return AbbrevID; }
|
|
|
|
unsigned getOffset() const { return Offset; }
|
|
|
|
unsigned getSize() const { return Size; }
|
|
|
|
const std::vector<DIE *> &getChildren() const { return Children; }
|
|
|
|
const std::vector<DIEValue *> &getValues() const { return Values; }
|
|
|
|
void setOffset(unsigned O) { Offset = O; }
|
|
|
|
void setSize(unsigned S) { Size = S; }
|
|
|
|
|
|
|
|
/// SiblingOffset - Return the offset of the debug information entry's
|
|
|
|
/// sibling.
|
|
|
|
unsigned SiblingOffset() const { return Offset + Size; }
|
|
|
|
|
|
|
|
/// AddUInt - Add an unsigned integer attribute data and value.
|
|
|
|
///
|
|
|
|
void AddUInt(unsigned Attribute, unsigned Form, uint64_t Integer);
|
|
|
|
|
|
|
|
/// AddSInt - Add an signed integer attribute data and value.
|
|
|
|
///
|
|
|
|
void AddSInt(unsigned Attribute, unsigned Form, int64_t Integer);
|
|
|
|
|
|
|
|
/// AddString - Add a std::string attribute data and value.
|
|
|
|
///
|
|
|
|
void AddString(unsigned Attribute, unsigned Form,
|
|
|
|
const std::string &String);
|
|
|
|
|
|
|
|
/// AddLabel - Add a Dwarf label attribute data and value.
|
|
|
|
///
|
|
|
|
void AddLabel(unsigned Attribute, unsigned Form, const DWLabel &Label);
|
|
|
|
|
|
|
|
/// AddObjectLabel - Add a non-Dwarf label attribute data and value.
|
|
|
|
///
|
|
|
|
void AddObjectLabel(unsigned Attribute, unsigned Form,
|
|
|
|
const std::string &Label);
|
|
|
|
|
|
|
|
/// AddDelta - Add a label delta attribute data and value.
|
|
|
|
///
|
|
|
|
void AddDelta(unsigned Attribute, unsigned Form,
|
|
|
|
const DWLabel &Hi, const DWLabel &Lo);
|
|
|
|
|
2006-03-03 21:00:14 +00:00
|
|
|
/// AddDIEntry - Add a DIE attribute data and value.
|
2006-02-27 12:43:29 +00:00
|
|
|
///
|
|
|
|
void AddDIEntry(unsigned Attribute, unsigned Form, DIE *Entry);
|
|
|
|
|
2006-03-03 21:00:14 +00:00
|
|
|
/// AddBlock - Add block data.
|
|
|
|
///
|
|
|
|
void AddBlock(unsigned Attribute, unsigned Form, DIEBlock *Block);
|
|
|
|
|
2006-02-27 12:43:29 +00:00
|
|
|
/// Complete - Indicate that all attributes have been added and
|
|
|
|
/// ready to get an abbreviation ID.
|
|
|
|
///
|
|
|
|
void Complete(DwarfWriter &DW);
|
|
|
|
|
|
|
|
/// AddChild - Add a child to the DIE.
|
|
|
|
void AddChild(DIE *Child);
|
|
|
|
};
|
|
|
|
|
|
|
|
} // End of namespace llvm
|
2006-01-17 17:31:53 +00:00
|
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
2006-02-27 17:27:12 +00:00
|
|
|
CompileUnit::~CompileUnit() {
|
|
|
|
delete Die;
|
|
|
|
}
|
|
|
|
|
|
|
|
/// hasContent - Return true if this compile unit has something to write out.
|
|
|
|
///
|
|
|
|
bool CompileUnit::hasContent() const {
|
|
|
|
return !Die->getChildren().empty();
|
|
|
|
}
|
|
|
|
|
|
|
|
/// AddGlobal - Add a new global entity to the compile unit.
|
|
|
|
///
|
|
|
|
void CompileUnit::AddGlobal(const std::string &Name, DIE *Die) {
|
|
|
|
Globals[Name] = Die;
|
|
|
|
}
|
|
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
2006-01-20 20:34:06 +00:00
|
|
|
/// operator== - Used by UniqueVector to locate entry.
|
|
|
|
///
|
|
|
|
bool DIEAbbrev::operator==(const DIEAbbrev &DA) const {
|
|
|
|
if (Tag != DA.Tag) return false;
|
|
|
|
if (ChildrenFlag != DA.ChildrenFlag) return false;
|
|
|
|
if (Data.size() != DA.Data.size()) return false;
|
|
|
|
|
2006-01-24 00:49:18 +00:00
|
|
|
for (unsigned i = 0, N = Data.size(); i < N; ++i) {
|
2006-01-21 01:13:18 +00:00
|
|
|
if (Data[i] != DA.Data[i]) return false;
|
2006-01-20 20:34:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
/// operator< - Used by UniqueVector to locate entry.
|
|
|
|
///
|
|
|
|
bool DIEAbbrev::operator<(const DIEAbbrev &DA) const {
|
|
|
|
if (Tag != DA.Tag) return Tag < DA.Tag;
|
|
|
|
if (ChildrenFlag != DA.ChildrenFlag) return ChildrenFlag < DA.ChildrenFlag;
|
|
|
|
if (Data.size() != DA.Data.size()) return Data.size() < DA.Data.size();
|
|
|
|
|
2006-01-24 00:49:18 +00:00
|
|
|
for (unsigned i = 0, N = Data.size(); i < N; ++i) {
|
2006-01-21 01:13:18 +00:00
|
|
|
if (Data[i] != DA.Data[i]) return Data[i] < DA.Data[i];
|
2006-01-20 20:34:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
/// Emit - Print the abbreviation using the specified Dwarf writer.
|
|
|
|
///
|
|
|
|
void DIEAbbrev::Emit(const DwarfWriter &DW) const {
|
|
|
|
// Emit its Dwarf tag type.
|
|
|
|
DW.EmitULEB128Bytes(Tag);
|
|
|
|
DW.EOL(TagString(Tag));
|
|
|
|
|
|
|
|
// Emit whether it has children DIEs.
|
|
|
|
DW.EmitULEB128Bytes(ChildrenFlag);
|
|
|
|
DW.EOL(ChildrenString(ChildrenFlag));
|
|
|
|
|
|
|
|
// For each attribute description.
|
2006-01-24 00:49:18 +00:00
|
|
|
for (unsigned i = 0, N = Data.size(); i < N; ++i) {
|
2006-01-20 20:34:06 +00:00
|
|
|
const DIEAbbrevData &AttrData = Data[i];
|
|
|
|
|
|
|
|
// Emit attribute type.
|
|
|
|
DW.EmitULEB128Bytes(AttrData.getAttribute());
|
|
|
|
DW.EOL(AttributeString(AttrData.getAttribute()));
|
|
|
|
|
|
|
|
// Emit form type.
|
|
|
|
DW.EmitULEB128Bytes(AttrData.getForm());
|
|
|
|
DW.EOL(FormEncodingString(AttrData.getForm()));
|
|
|
|
}
|
|
|
|
|
|
|
|
// Mark end of abbreviation.
|
|
|
|
DW.EmitULEB128Bytes(0); DW.EOL("EOM(1)");
|
|
|
|
DW.EmitULEB128Bytes(0); DW.EOL("EOM(2)");
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifndef NDEBUG
|
|
|
|
void DIEAbbrev::print(std::ostream &O) {
|
|
|
|
O << "Abbreviation @"
|
2006-01-25 17:18:50 +00:00
|
|
|
<< std::hex << (intptr_t)this << std::dec
|
2006-01-20 20:34:06 +00:00
|
|
|
<< " "
|
|
|
|
<< TagString(Tag)
|
|
|
|
<< " "
|
|
|
|
<< ChildrenString(ChildrenFlag)
|
|
|
|
<< "\n";
|
|
|
|
|
2006-01-24 00:49:18 +00:00
|
|
|
for (unsigned i = 0, N = Data.size(); i < N; ++i) {
|
2006-01-20 20:34:06 +00:00
|
|
|
O << " "
|
|
|
|
<< AttributeString(Data[i].getAttribute())
|
|
|
|
<< " "
|
|
|
|
<< FormEncodingString(Data[i].getForm())
|
|
|
|
<< "\n";
|
|
|
|
}
|
|
|
|
}
|
|
|
|
void DIEAbbrev::dump() { print(std::cerr); }
|
|
|
|
#endif
|
|
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
2006-03-03 21:00:14 +00:00
|
|
|
/// BestForm - Choose the best form for integer.
|
|
|
|
///
|
|
|
|
unsigned DIEInteger::BestForm(bool IsSigned) {
|
|
|
|
if (IsSigned) {
|
|
|
|
if ((char)Integer == (signed)Integer) return DW_FORM_data1;
|
|
|
|
if ((short)Integer == (signed)Integer) return DW_FORM_data2;
|
|
|
|
if ((int)Integer == (signed)Integer) return DW_FORM_data4;
|
|
|
|
} else {
|
|
|
|
if ((unsigned char)Integer == Integer) return DW_FORM_data1;
|
|
|
|
if ((unsigned short)Integer == Integer) return DW_FORM_data2;
|
|
|
|
if ((unsigned int)Integer == Integer) return DW_FORM_data4;
|
|
|
|
}
|
|
|
|
return DW_FORM_data8;
|
|
|
|
}
|
|
|
|
|
2006-01-17 17:31:53 +00:00
|
|
|
/// EmitValue - Emit integer of appropriate size.
|
|
|
|
///
|
|
|
|
void DIEInteger::EmitValue(const DwarfWriter &DW, unsigned Form) const {
|
|
|
|
switch (Form) {
|
2006-01-20 21:02:36 +00:00
|
|
|
case DW_FORM_flag: // Fall thru
|
2006-01-27 20:31:25 +00:00
|
|
|
case DW_FORM_data1: DW.EmitInt8(Integer); break;
|
|
|
|
case DW_FORM_data2: DW.EmitInt16(Integer); break;
|
|
|
|
case DW_FORM_data4: DW.EmitInt32(Integer); break;
|
|
|
|
case DW_FORM_data8: DW.EmitInt64(Integer); break;
|
2006-01-20 21:02:36 +00:00
|
|
|
case DW_FORM_udata: DW.EmitULEB128Bytes(Integer); break;
|
|
|
|
case DW_FORM_sdata: DW.EmitSLEB128Bytes(Integer); break;
|
2006-01-17 17:31:53 +00:00
|
|
|
default: assert(0 && "DIE Value form not supported yet"); break;
|
2006-01-04 13:52:30 +00:00
|
|
|
}
|
2006-01-17 17:31:53 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/// SizeOf - Determine size of integer value in bytes.
|
|
|
|
///
|
|
|
|
unsigned DIEInteger::SizeOf(const DwarfWriter &DW, unsigned Form) const {
|
|
|
|
switch (Form) {
|
2006-01-20 20:34:06 +00:00
|
|
|
case DW_FORM_flag: // Fall thru
|
2006-01-17 17:31:53 +00:00
|
|
|
case DW_FORM_data1: return sizeof(int8_t);
|
|
|
|
case DW_FORM_data2: return sizeof(int16_t);
|
|
|
|
case DW_FORM_data4: return sizeof(int32_t);
|
2006-01-27 15:20:54 +00:00
|
|
|
case DW_FORM_data8: return sizeof(int64_t);
|
2006-01-20 21:02:36 +00:00
|
|
|
case DW_FORM_udata: return DW.SizeULEB128(Integer);
|
|
|
|
case DW_FORM_sdata: return DW.SizeSLEB128(Integer);
|
2006-01-17 17:31:53 +00:00
|
|
|
default: assert(0 && "DIE Value form not supported yet"); break;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
|
|
|
/// EmitValue - Emit string value.
|
|
|
|
///
|
|
|
|
void DIEString::EmitValue(const DwarfWriter &DW, unsigned Form) const {
|
2006-01-20 20:34:06 +00:00
|
|
|
DW.EmitString(String);
|
2006-01-17 17:31:53 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/// SizeOf - Determine size of string value in bytes.
|
|
|
|
///
|
|
|
|
unsigned DIEString::SizeOf(const DwarfWriter &DW, unsigned Form) const {
|
2006-01-20 21:02:36 +00:00
|
|
|
return String.size() + sizeof(char); // sizeof('\0');
|
2006-01-17 17:31:53 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
|
|
|
/// EmitValue - Emit label value.
|
|
|
|
///
|
2006-01-24 00:49:18 +00:00
|
|
|
void DIEDwarfLabel::EmitValue(const DwarfWriter &DW, unsigned Form) const {
|
2006-01-20 20:34:06 +00:00
|
|
|
DW.EmitReference(Label);
|
2006-01-17 17:31:53 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/// SizeOf - Determine size of label value in bytes.
|
|
|
|
///
|
2006-01-24 00:49:18 +00:00
|
|
|
unsigned DIEDwarfLabel::SizeOf(const DwarfWriter &DW, unsigned Form) const {
|
2006-01-17 17:31:53 +00:00
|
|
|
return DW.getAddressSize();
|
|
|
|
}
|
|
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
2006-01-20 20:34:06 +00:00
|
|
|
/// EmitValue - Emit label value.
|
|
|
|
///
|
2006-01-24 00:49:18 +00:00
|
|
|
void DIEObjectLabel::EmitValue(const DwarfWriter &DW, unsigned Form) const {
|
2006-01-20 20:34:06 +00:00
|
|
|
DW.EmitReference(Label);
|
|
|
|
}
|
|
|
|
|
|
|
|
/// SizeOf - Determine size of label value in bytes.
|
|
|
|
///
|
2006-01-24 00:49:18 +00:00
|
|
|
unsigned DIEObjectLabel::SizeOf(const DwarfWriter &DW, unsigned Form) const {
|
2006-03-03 21:00:14 +00:00
|
|
|
return DW.getAddressSize();
|
2006-01-20 20:34:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
2006-01-17 17:31:53 +00:00
|
|
|
/// EmitValue - Emit delta value.
|
|
|
|
///
|
|
|
|
void DIEDelta::EmitValue(const DwarfWriter &DW, unsigned Form) const {
|
2006-01-20 20:34:06 +00:00
|
|
|
DW.EmitDifference(LabelHi, LabelLo);
|
2006-01-17 17:31:53 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/// SizeOf - Determine size of delta value in bytes.
|
|
|
|
///
|
|
|
|
unsigned DIEDelta::SizeOf(const DwarfWriter &DW, unsigned Form) const {
|
|
|
|
return DW.getAddressSize();
|
|
|
|
}
|
|
|
|
|
2006-01-20 20:34:06 +00:00
|
|
|
//===----------------------------------------------------------------------===//
|
2006-03-03 21:00:14 +00:00
|
|
|
/// EmitValue - Emit die entry offset.
|
2006-01-20 20:34:06 +00:00
|
|
|
///
|
|
|
|
void DIEntry::EmitValue(const DwarfWriter &DW, unsigned Form) const {
|
2006-01-27 20:31:25 +00:00
|
|
|
DW.EmitInt32(Entry->getOffset());
|
2006-01-20 20:34:06 +00:00
|
|
|
}
|
|
|
|
|
2006-03-03 21:00:14 +00:00
|
|
|
/// SizeOf - Determine size of die value in bytes.
|
2006-01-20 20:34:06 +00:00
|
|
|
///
|
|
|
|
unsigned DIEntry::SizeOf(const DwarfWriter &DW, unsigned Form) const {
|
|
|
|
return sizeof(int32_t);
|
|
|
|
}
|
|
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
2006-03-03 21:00:14 +00:00
|
|
|
DIEBlock::~DIEBlock() {
|
|
|
|
for (unsigned i = 0, N = Values.size(); i < N; ++i) {
|
|
|
|
delete Values[i];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/// ComputeSize - calculate the size of the block.
|
|
|
|
///
|
|
|
|
unsigned DIEBlock::ComputeSize(DwarfWriter &DW) {
|
|
|
|
Size = 0;
|
|
|
|
for (unsigned i = 0, N = Values.size(); i < N; ++i) {
|
|
|
|
Size += Values[i]->SizeOf(DW, Forms[i]);
|
|
|
|
}
|
|
|
|
return Size;
|
|
|
|
}
|
|
|
|
|
|
|
|
/// BestForm - Choose the best form for data.
|
|
|
|
///
|
|
|
|
unsigned DIEBlock::BestForm() {
|
|
|
|
if ((unsigned char)Size == Size) return DW_FORM_block1;
|
|
|
|
if ((unsigned short)Size == Size) return DW_FORM_block2;
|
|
|
|
if ((unsigned int)Size == Size) return DW_FORM_block4;
|
|
|
|
return DW_FORM_block;
|
|
|
|
}
|
|
|
|
|
|
|
|
/// EmitValue - Emit block data.
|
|
|
|
///
|
|
|
|
void DIEBlock::EmitValue(const DwarfWriter &DW, unsigned Form) const {
|
|
|
|
switch (Form) {
|
|
|
|
case DW_FORM_block1: DW.EmitInt8(Size); break;
|
|
|
|
case DW_FORM_block2: DW.EmitInt16(Size); break;
|
|
|
|
case DW_FORM_block4: DW.EmitInt32(Size); break;
|
|
|
|
case DW_FORM_block: DW.EmitULEB128Bytes(Size); break;
|
|
|
|
default: assert(0 && "Improper form for block"); break;
|
|
|
|
}
|
|
|
|
for (unsigned i = 0, N = Values.size(); i < N; ++i) {
|
|
|
|
DW.EOL("");
|
|
|
|
Values[i]->EmitValue(DW, Forms[i]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/// SizeOf - Determine size of block data in bytes.
|
|
|
|
///
|
|
|
|
unsigned DIEBlock::SizeOf(const DwarfWriter &DW, unsigned Form) const {
|
|
|
|
switch (Form) {
|
|
|
|
case DW_FORM_block1: return Size + sizeof(int8_t);
|
|
|
|
case DW_FORM_block2: return Size + sizeof(int16_t);
|
|
|
|
case DW_FORM_block4: return Size + sizeof(int32_t);
|
|
|
|
case DW_FORM_block: return Size + DW.SizeULEB128(Size);
|
|
|
|
default: assert(0 && "Improper form for block"); break;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/// AddUInt - Add an unsigned integer value.
|
|
|
|
///
|
|
|
|
void DIEBlock::AddUInt(unsigned Form, uint64_t Integer) {
|
|
|
|
DIEInteger *DI = new DIEInteger(Integer);
|
|
|
|
Values.push_back(DI);
|
|
|
|
if (Form == 0) Form = DI->BestForm(false);
|
|
|
|
Forms.push_back(Form);
|
|
|
|
}
|
|
|
|
|
|
|
|
/// AddSInt - Add an signed integer value.
|
|
|
|
///
|
|
|
|
void DIEBlock::AddSInt(unsigned Form, int64_t Integer) {
|
|
|
|
DIEInteger *DI = new DIEInteger(Integer);
|
|
|
|
Values.push_back(DI);
|
|
|
|
if (Form == 0) Form = DI->BestForm(true);
|
|
|
|
Forms.push_back(Form);
|
|
|
|
}
|
|
|
|
|
|
|
|
/// AddString - Add a std::string value.
|
|
|
|
///
|
|
|
|
void DIEBlock::AddString(unsigned Form, const std::string &String) {
|
|
|
|
Values.push_back(new DIEString(String));
|
|
|
|
Forms.push_back(Form);
|
|
|
|
}
|
|
|
|
|
|
|
|
/// AddLabel - Add a Dwarf label value.
|
|
|
|
///
|
|
|
|
void DIEBlock::AddLabel(unsigned Form, const DWLabel &Label) {
|
|
|
|
Values.push_back(new DIEDwarfLabel(Label));
|
|
|
|
Forms.push_back(Form);
|
|
|
|
}
|
|
|
|
|
|
|
|
/// AddObjectLabel - Add a non-Dwarf label value.
|
|
|
|
///
|
|
|
|
void DIEBlock::AddObjectLabel(unsigned Form, const std::string &Label) {
|
|
|
|
Values.push_back(new DIEObjectLabel(Label));
|
|
|
|
Forms.push_back(Form);
|
|
|
|
}
|
|
|
|
|
|
|
|
/// AddDelta - Add a label delta value.
|
|
|
|
///
|
|
|
|
void DIEBlock::AddDelta(unsigned Form, const DWLabel &Hi, const DWLabel &Lo) {
|
|
|
|
Values.push_back(new DIEDelta(Hi, Lo));
|
|
|
|
Forms.push_back(Form);
|
|
|
|
}
|
|
|
|
|
|
|
|
/// AddDIEntry - Add a DIE value.
|
|
|
|
///
|
|
|
|
void DIEBlock::AddDIEntry(unsigned Form, DIE *Entry) {
|
|
|
|
Values.push_back(new DIEntry(Entry));
|
|
|
|
Forms.push_back(Form);
|
|
|
|
}
|
|
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
2006-02-22 19:02:11 +00:00
|
|
|
DIE::DIE(unsigned Tag)
|
|
|
|
: Abbrev(new DIEAbbrev(Tag, DW_CHILDREN_no))
|
2006-01-20 20:34:06 +00:00
|
|
|
, AbbrevID(0)
|
|
|
|
, Offset(0)
|
|
|
|
, Size(0)
|
|
|
|
, Children()
|
|
|
|
, Values()
|
|
|
|
{}
|
|
|
|
|
|
|
|
DIE::~DIE() {
|
|
|
|
if (Abbrev) delete Abbrev;
|
|
|
|
|
2006-01-24 00:49:18 +00:00
|
|
|
for (unsigned i = 0, N = Children.size(); i < N; ++i) {
|
2006-01-20 20:34:06 +00:00
|
|
|
delete Children[i];
|
|
|
|
}
|
|
|
|
|
2006-01-24 00:49:18 +00:00
|
|
|
for (unsigned j = 0, M = Values.size(); j < M; ++j) {
|
2006-01-20 20:34:06 +00:00
|
|
|
delete Values[j];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2006-01-27 15:20:54 +00:00
|
|
|
/// AddUInt - Add an unsigned integer attribute data and value.
|
2006-01-20 20:34:06 +00:00
|
|
|
///
|
2006-01-27 15:20:54 +00:00
|
|
|
void DIE::AddUInt(unsigned Attribute, unsigned Form, uint64_t Integer) {
|
2006-03-03 21:00:14 +00:00
|
|
|
DIEInteger *DI = new DIEInteger(Integer);
|
|
|
|
Values.push_back(DI);
|
|
|
|
if (!Form) Form = DI->BestForm(false);
|
2006-01-27 15:20:54 +00:00
|
|
|
Abbrev->AddAttribute(Attribute, Form);
|
|
|
|
}
|
|
|
|
|
|
|
|
/// AddSInt - Add an signed integer attribute data and value.
|
|
|
|
///
|
|
|
|
void DIE::AddSInt(unsigned Attribute, unsigned Form, int64_t Integer) {
|
2006-03-03 21:00:14 +00:00
|
|
|
DIEInteger *DI = new DIEInteger(Integer);
|
|
|
|
Values.push_back(DI);
|
|
|
|
if (!Form) Form = DI->BestForm(true);
|
2006-01-20 20:34:06 +00:00
|
|
|
Abbrev->AddAttribute(Attribute, Form);
|
|
|
|
}
|
|
|
|
|
|
|
|
/// AddString - Add a std::string attribute data and value.
|
|
|
|
///
|
|
|
|
void DIE::AddString(unsigned Attribute, unsigned Form,
|
|
|
|
const std::string &String) {
|
|
|
|
Values.push_back(new DIEString(String));
|
2006-03-03 21:00:14 +00:00
|
|
|
Abbrev->AddAttribute(Attribute, Form);
|
2006-01-20 20:34:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/// AddLabel - Add a Dwarf label attribute data and value.
|
|
|
|
///
|
|
|
|
void DIE::AddLabel(unsigned Attribute, unsigned Form,
|
|
|
|
const DWLabel &Label) {
|
2006-01-24 00:49:18 +00:00
|
|
|
Values.push_back(new DIEDwarfLabel(Label));
|
2006-03-03 21:00:14 +00:00
|
|
|
Abbrev->AddAttribute(Attribute, Form);
|
2006-01-20 20:34:06 +00:00
|
|
|
}
|
|
|
|
|
2006-01-24 00:49:18 +00:00
|
|
|
/// AddObjectLabel - Add an non-Dwarf label attribute data and value.
|
2006-01-20 20:34:06 +00:00
|
|
|
///
|
2006-01-24 00:49:18 +00:00
|
|
|
void DIE::AddObjectLabel(unsigned Attribute, unsigned Form,
|
|
|
|
const std::string &Label) {
|
|
|
|
Values.push_back(new DIEObjectLabel(Label));
|
2006-03-03 21:00:14 +00:00
|
|
|
Abbrev->AddAttribute(Attribute, Form);
|
2006-01-20 20:34:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/// AddDelta - Add a label delta attribute data and value.
|
|
|
|
///
|
|
|
|
void DIE::AddDelta(unsigned Attribute, unsigned Form,
|
|
|
|
const DWLabel &Hi, const DWLabel &Lo) {
|
|
|
|
Values.push_back(new DIEDelta(Hi, Lo));
|
2006-03-03 21:00:14 +00:00
|
|
|
Abbrev->AddAttribute(Attribute, Form);
|
2006-01-20 20:34:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/// AddDIEntry - Add a DIE attribute data and value.
|
|
|
|
///
|
2006-03-03 21:00:14 +00:00
|
|
|
void DIE::AddDIEntry(unsigned Attribute, unsigned Form, DIE *Entry) {
|
2006-01-20 20:34:06 +00:00
|
|
|
Values.push_back(new DIEntry(Entry));
|
2006-03-03 21:00:14 +00:00
|
|
|
Abbrev->AddAttribute(Attribute, Form);
|
|
|
|
}
|
|
|
|
|
|
|
|
/// AddBlock - Add block data.
|
|
|
|
///
|
|
|
|
void DIE::AddBlock(unsigned Attribute, unsigned Form, DIEBlock *Block) {
|
|
|
|
assert(Block->Size && "Block size has not been computed");
|
|
|
|
Values.push_back(Block);
|
|
|
|
if (!Form) Form = Block->BestForm();
|
|
|
|
Abbrev->AddAttribute(Attribute, Form);
|
2006-01-20 20:34:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/// Complete - Indicate that all attributes have been added and ready to get an
|
|
|
|
/// abbreviation ID.
|
|
|
|
void DIE::Complete(DwarfWriter &DW) {
|
|
|
|
AbbrevID = DW.NewAbbreviation(Abbrev);
|
|
|
|
delete Abbrev;
|
|
|
|
Abbrev = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/// AddChild - Add a child to the DIE.
|
|
|
|
///
|
|
|
|
void DIE::AddChild(DIE *Child) {
|
2006-02-22 19:02:11 +00:00
|
|
|
assert(Abbrev && "Adding children without an abbreviation");
|
|
|
|
Abbrev->setChildrenFlag(DW_CHILDREN_yes);
|
2006-01-20 20:34:06 +00:00
|
|
|
Children.push_back(Child);
|
|
|
|
}
|
|
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
2006-02-22 19:02:11 +00:00
|
|
|
/// DWContext
|
2006-01-20 20:34:06 +00:00
|
|
|
|
2006-01-17 17:31:53 +00:00
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
|
|
|
/// PrintHex - Print a value as a hexidecimal value.
|
|
|
|
///
|
|
|
|
void DwarfWriter::PrintHex(int Value) const {
|
|
|
|
O << "0x" << std::hex << Value << std::dec;
|
|
|
|
}
|
|
|
|
|
|
|
|
/// EOL - Print a newline character to asm stream. If a comment is present
|
|
|
|
/// then it will be printed first. Comments should not contain '\n'.
|
|
|
|
void DwarfWriter::EOL(const std::string &Comment) const {
|
2006-03-03 21:00:14 +00:00
|
|
|
if (DwarfVerbose && !Comment.empty()) {
|
2006-01-04 13:52:30 +00:00
|
|
|
O << "\t"
|
2006-01-04 22:28:25 +00:00
|
|
|
<< Asm->CommentString
|
2006-01-04 13:52:30 +00:00
|
|
|
<< " "
|
2006-01-17 17:31:53 +00:00
|
|
|
<< Comment;
|
2006-01-04 13:52:30 +00:00
|
|
|
}
|
|
|
|
O << "\n";
|
|
|
|
}
|
|
|
|
|
2006-01-17 17:31:53 +00:00
|
|
|
/// EmitULEB128Bytes - Emit an assembler byte data directive to compose an
|
|
|
|
/// unsigned leb128 value.
|
|
|
|
void DwarfWriter::EmitULEB128Bytes(unsigned Value) const {
|
|
|
|
if (hasLEB128) {
|
|
|
|
O << "\t.uleb128\t"
|
|
|
|
<< Value;
|
|
|
|
} else {
|
|
|
|
O << Asm->Data8bitsDirective;
|
|
|
|
PrintULEB128(Value);
|
|
|
|
}
|
2006-01-04 22:28:25 +00:00
|
|
|
}
|
|
|
|
|
2006-01-17 17:31:53 +00:00
|
|
|
/// EmitSLEB128Bytes - Emit an assembler byte data directive to compose a
|
|
|
|
/// signed leb128 value.
|
|
|
|
void DwarfWriter::EmitSLEB128Bytes(int Value) const {
|
|
|
|
if (hasLEB128) {
|
|
|
|
O << "\t.sleb128\t"
|
|
|
|
<< Value;
|
|
|
|
} else {
|
|
|
|
O << Asm->Data8bitsDirective;
|
|
|
|
PrintSLEB128(Value);
|
|
|
|
}
|
2006-01-04 22:28:25 +00:00
|
|
|
}
|
|
|
|
|
2006-01-17 17:31:53 +00:00
|
|
|
/// PrintULEB128 - Print a series of hexidecimal values (separated by commas)
|
2006-01-04 22:28:25 +00:00
|
|
|
/// representing an unsigned leb128 value.
|
2006-01-17 17:31:53 +00:00
|
|
|
void DwarfWriter::PrintULEB128(unsigned Value) const {
|
2006-01-04 22:28:25 +00:00
|
|
|
do {
|
|
|
|
unsigned Byte = Value & 0x7f;
|
|
|
|
Value >>= 7;
|
|
|
|
if (Value) Byte |= 0x80;
|
2006-01-17 17:31:53 +00:00
|
|
|
PrintHex(Byte);
|
2006-01-04 22:28:25 +00:00
|
|
|
if (Value) O << ", ";
|
|
|
|
} while (Value);
|
|
|
|
}
|
|
|
|
|
2006-01-17 17:31:53 +00:00
|
|
|
/// SizeULEB128 - Compute the number of bytes required for an unsigned leb128
|
|
|
|
/// value.
|
|
|
|
unsigned DwarfWriter::SizeULEB128(unsigned Value) {
|
|
|
|
unsigned Size = 0;
|
|
|
|
do {
|
|
|
|
Value >>= 7;
|
|
|
|
Size += sizeof(int8_t);
|
|
|
|
} while (Value);
|
|
|
|
return Size;
|
|
|
|
}
|
|
|
|
|
|
|
|
/// PrintSLEB128 - Print a series of hexidecimal values (separated by commas)
|
2006-01-04 22:28:25 +00:00
|
|
|
/// representing a signed leb128 value.
|
2006-01-17 17:31:53 +00:00
|
|
|
void DwarfWriter::PrintSLEB128(int Value) const {
|
2006-01-04 22:28:25 +00:00
|
|
|
int Sign = Value >> (8 * sizeof(Value) - 1);
|
|
|
|
bool IsMore;
|
2006-01-04 13:52:30 +00:00
|
|
|
|
2006-01-04 22:28:25 +00:00
|
|
|
do {
|
|
|
|
unsigned Byte = Value & 0x7f;
|
|
|
|
Value >>= 7;
|
|
|
|
IsMore = Value != Sign || ((Byte ^ Sign) & 0x40) != 0;
|
|
|
|
if (IsMore) Byte |= 0x80;
|
2006-01-17 17:31:53 +00:00
|
|
|
PrintHex(Byte);
|
2006-01-04 22:28:25 +00:00
|
|
|
if (IsMore) O << ", ";
|
|
|
|
} while (IsMore);
|
|
|
|
}
|
|
|
|
|
2006-01-17 17:31:53 +00:00
|
|
|
/// SizeSLEB128 - Compute the number of bytes required for a signed leb128
|
|
|
|
/// value.
|
|
|
|
unsigned DwarfWriter::SizeSLEB128(int Value) {
|
|
|
|
unsigned Size = 0;
|
|
|
|
int Sign = Value >> (8 * sizeof(Value) - 1);
|
|
|
|
bool IsMore;
|
|
|
|
|
|
|
|
do {
|
|
|
|
unsigned Byte = Value & 0x7f;
|
|
|
|
Value >>= 7;
|
|
|
|
IsMore = Value != Sign || ((Byte ^ Sign) & 0x40) != 0;
|
|
|
|
Size += sizeof(int8_t);
|
|
|
|
} while (IsMore);
|
|
|
|
return Size;
|
|
|
|
}
|
|
|
|
|
2006-01-27 20:31:25 +00:00
|
|
|
/// EmitInt8 - Emit a byte directive and value.
|
2006-01-04 22:28:25 +00:00
|
|
|
///
|
2006-01-27 20:31:25 +00:00
|
|
|
void DwarfWriter::EmitInt8(int Value) const {
|
2006-01-17 17:31:53 +00:00
|
|
|
O << Asm->Data8bitsDirective;
|
2006-02-22 19:02:11 +00:00
|
|
|
PrintHex(Value & 0xFF);
|
2006-01-17 17:31:53 +00:00
|
|
|
}
|
|
|
|
|
2006-01-27 20:31:25 +00:00
|
|
|
/// EmitInt16 - Emit a short directive and value.
|
2006-01-17 17:31:53 +00:00
|
|
|
///
|
2006-01-27 20:31:25 +00:00
|
|
|
void DwarfWriter::EmitInt16(int Value) const {
|
2006-01-17 17:31:53 +00:00
|
|
|
O << Asm->Data16bitsDirective;
|
2006-02-22 19:02:11 +00:00
|
|
|
PrintHex(Value & 0xFFFF);
|
2006-01-17 17:31:53 +00:00
|
|
|
}
|
|
|
|
|
2006-01-27 20:31:25 +00:00
|
|
|
/// EmitInt32 - Emit a long directive and value.
|
2006-01-17 17:31:53 +00:00
|
|
|
///
|
2006-01-27 20:31:25 +00:00
|
|
|
void DwarfWriter::EmitInt32(int Value) const {
|
2006-01-17 17:31:53 +00:00
|
|
|
O << Asm->Data32bitsDirective;
|
|
|
|
PrintHex(Value);
|
|
|
|
}
|
|
|
|
|
2006-01-27 20:31:25 +00:00
|
|
|
/// EmitInt64 - Emit a long long directive and value.
|
2006-01-27 15:20:54 +00:00
|
|
|
///
|
2006-01-27 20:31:25 +00:00
|
|
|
void DwarfWriter::EmitInt64(uint64_t Value) const {
|
2006-01-27 15:20:54 +00:00
|
|
|
if (Asm->Data64bitsDirective) {
|
|
|
|
O << Asm->Data64bitsDirective << "0x" << std::hex << Value << std::dec;
|
|
|
|
} else {
|
|
|
|
const TargetData &TD = Asm->TM.getTargetData();
|
|
|
|
|
|
|
|
if (TD.isBigEndian()) {
|
2006-01-27 20:31:25 +00:00
|
|
|
EmitInt32(unsigned(Value >> 32)); O << "\n";
|
|
|
|
EmitInt32(unsigned(Value));
|
2006-01-27 15:20:54 +00:00
|
|
|
} else {
|
2006-01-27 20:31:25 +00:00
|
|
|
EmitInt32(unsigned(Value)); O << "\n";
|
|
|
|
EmitInt32(unsigned(Value >> 32));
|
2006-01-27 15:20:54 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2006-01-17 17:31:53 +00:00
|
|
|
/// EmitString - Emit a string with quotes and a null terminator.
|
|
|
|
/// Special characters are emitted properly. (Eg. '\t')
|
|
|
|
void DwarfWriter::EmitString(const std::string &String) const {
|
|
|
|
O << Asm->AsciiDirective
|
|
|
|
<< "\"";
|
2006-01-24 00:49:18 +00:00
|
|
|
for (unsigned i = 0, N = String.size(); i < N; ++i) {
|
2006-01-17 17:31:53 +00:00
|
|
|
unsigned char C = String[i];
|
|
|
|
|
|
|
|
if (!isascii(C) || iscntrl(C)) {
|
|
|
|
switch(C) {
|
|
|
|
case '\b': O << "\\b"; break;
|
|
|
|
case '\f': O << "\\f"; break;
|
|
|
|
case '\n': O << "\\n"; break;
|
|
|
|
case '\r': O << "\\r"; break;
|
|
|
|
case '\t': O << "\\t"; break;
|
|
|
|
default:
|
|
|
|
O << '\\';
|
|
|
|
O << char('0' + (C >> 6));
|
|
|
|
O << char('0' + (C >> 3));
|
|
|
|
O << char('0' + (C >> 0));
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
} else if (C == '\"') {
|
|
|
|
O << "\\\"";
|
|
|
|
} else if (C == '\'') {
|
|
|
|
O << "\\\'";
|
|
|
|
} else {
|
|
|
|
O << C;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
O << "\\0\"";
|
|
|
|
}
|
|
|
|
|
|
|
|
/// PrintLabelName - Print label name in form used by Dwarf writer.
|
|
|
|
///
|
|
|
|
void DwarfWriter::PrintLabelName(const char *Tag, unsigned Number) const {
|
2006-01-04 22:28:25 +00:00
|
|
|
O << Asm->PrivateGlobalPrefix
|
|
|
|
<< "debug_"
|
2006-02-22 19:02:11 +00:00
|
|
|
<< Tag;
|
|
|
|
if (Number) O << Number;
|
2006-01-04 22:28:25 +00:00
|
|
|
}
|
|
|
|
|
2006-01-17 17:31:53 +00:00
|
|
|
/// EmitLabel - Emit location label for internal use by Dwarf.
|
2006-01-04 22:28:25 +00:00
|
|
|
///
|
2006-01-17 17:31:53 +00:00
|
|
|
void DwarfWriter::EmitLabel(const char *Tag, unsigned Number) const {
|
|
|
|
PrintLabelName(Tag, Number);
|
2006-01-04 22:28:25 +00:00
|
|
|
O << ":\n";
|
|
|
|
}
|
|
|
|
|
2006-01-18 16:54:26 +00:00
|
|
|
/// EmitReference - Emit a reference to a label.
|
2006-01-17 17:31:53 +00:00
|
|
|
///
|
2006-01-18 16:54:26 +00:00
|
|
|
void DwarfWriter::EmitReference(const char *Tag, unsigned Number) const {
|
2006-01-17 17:31:53 +00:00
|
|
|
if (AddressSize == 4)
|
|
|
|
O << Asm->Data32bitsDirective;
|
|
|
|
else
|
|
|
|
O << Asm->Data64bitsDirective;
|
|
|
|
|
|
|
|
PrintLabelName(Tag, Number);
|
|
|
|
}
|
2006-01-21 00:59:54 +00:00
|
|
|
void DwarfWriter::EmitReference(const std::string &Name) const {
|
2006-01-20 20:34:06 +00:00
|
|
|
if (AddressSize == 4)
|
|
|
|
O << Asm->Data32bitsDirective;
|
|
|
|
else
|
|
|
|
O << Asm->Data64bitsDirective;
|
|
|
|
|
|
|
|
O << Name;
|
|
|
|
}
|
2006-01-17 17:31:53 +00:00
|
|
|
|
|
|
|
/// EmitDifference - Emit an label difference as sizeof(pointer) value. Some
|
|
|
|
/// assemblers do not accept absolute expressions with data directives, so there
|
|
|
|
/// is an option (needsSet) to use an intermediary 'set' expression.
|
2006-01-20 20:34:06 +00:00
|
|
|
void DwarfWriter::EmitDifference(const char *TagHi, unsigned NumberHi,
|
|
|
|
const char *TagLo, unsigned NumberLo) const {
|
2006-01-17 17:31:53 +00:00
|
|
|
if (needsSet) {
|
|
|
|
static unsigned SetCounter = 0;
|
2006-01-20 20:34:06 +00:00
|
|
|
|
2006-01-17 17:31:53 +00:00
|
|
|
O << "\t.set\t";
|
|
|
|
PrintLabelName("set", SetCounter);
|
|
|
|
O << ",";
|
2006-01-20 20:34:06 +00:00
|
|
|
PrintLabelName(TagHi, NumberHi);
|
2006-01-17 17:31:53 +00:00
|
|
|
O << "-";
|
2006-01-20 20:34:06 +00:00
|
|
|
PrintLabelName(TagLo, NumberLo);
|
2006-01-17 17:31:53 +00:00
|
|
|
O << "\n";
|
|
|
|
|
|
|
|
if (AddressSize == sizeof(int32_t))
|
|
|
|
O << Asm->Data32bitsDirective;
|
|
|
|
else
|
|
|
|
O << Asm->Data64bitsDirective;
|
|
|
|
|
|
|
|
PrintLabelName("set", SetCounter);
|
|
|
|
|
2006-01-24 00:49:18 +00:00
|
|
|
++SetCounter;
|
2006-01-17 17:31:53 +00:00
|
|
|
} else {
|
|
|
|
if (AddressSize == sizeof(int32_t))
|
|
|
|
O << Asm->Data32bitsDirective;
|
|
|
|
else
|
|
|
|
O << Asm->Data64bitsDirective;
|
|
|
|
|
2006-01-20 20:34:06 +00:00
|
|
|
PrintLabelName(TagHi, NumberHi);
|
2006-01-17 17:31:53 +00:00
|
|
|
O << "-";
|
2006-01-20 20:34:06 +00:00
|
|
|
PrintLabelName(TagLo, NumberLo);
|
2006-01-17 17:31:53 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2006-01-20 20:34:06 +00:00
|
|
|
/// NewAbbreviation - Add the abbreviation to the Abbreviation vector.
|
2006-01-17 17:31:53 +00:00
|
|
|
///
|
2006-01-20 20:34:06 +00:00
|
|
|
unsigned DwarfWriter::NewAbbreviation(DIEAbbrev *Abbrev) {
|
|
|
|
return Abbreviations.insert(*Abbrev);
|
|
|
|
}
|
|
|
|
|
|
|
|
/// NewString - Add a string to the constant pool and returns a label.
|
|
|
|
///
|
|
|
|
DWLabel DwarfWriter::NewString(const std::string &String) {
|
|
|
|
unsigned StringID = StringPool.insert(String);
|
|
|
|
return DWLabel("string", StringID);
|
|
|
|
}
|
|
|
|
|
2006-02-22 19:02:11 +00:00
|
|
|
/// NewBasicType - Creates a new basic type if necessary, then adds to the
|
|
|
|
/// owner.
|
|
|
|
/// FIXME - Should never be needed.
|
2006-03-01 18:20:30 +00:00
|
|
|
DIE *DwarfWriter::NewBasicType(DIE *Context, Type *Ty) {
|
2006-02-22 19:02:11 +00:00
|
|
|
DIE *&Slot = TypeToDieMap[Ty];
|
|
|
|
if (Slot) return Slot;
|
|
|
|
|
|
|
|
const char *Name;
|
|
|
|
unsigned Size;
|
|
|
|
unsigned Encoding = 0;
|
|
|
|
|
|
|
|
switch (Ty->getTypeID()) {
|
|
|
|
case Type::UByteTyID:
|
|
|
|
Name = "unsigned char";
|
|
|
|
Size = 1;
|
|
|
|
Encoding = DW_ATE_unsigned_char;
|
|
|
|
break;
|
|
|
|
case Type::SByteTyID:
|
|
|
|
Name = "char";
|
|
|
|
Size = 1;
|
|
|
|
Encoding = DW_ATE_signed_char;
|
|
|
|
break;
|
|
|
|
case Type::UShortTyID:
|
|
|
|
Name = "unsigned short";
|
|
|
|
Size = 2;
|
|
|
|
Encoding = DW_ATE_unsigned;
|
|
|
|
break;
|
|
|
|
case Type::ShortTyID:
|
|
|
|
Name = "short";
|
|
|
|
Size = 2;
|
|
|
|
Encoding = DW_ATE_signed;
|
|
|
|
break;
|
|
|
|
case Type::UIntTyID:
|
|
|
|
Name = "unsigned int";
|
|
|
|
Size = 4;
|
|
|
|
Encoding = DW_ATE_unsigned;
|
|
|
|
break;
|
|
|
|
case Type::IntTyID:
|
|
|
|
Name = "int";
|
|
|
|
Size = 4;
|
|
|
|
Encoding = DW_ATE_signed;
|
|
|
|
break;
|
|
|
|
case Type::ULongTyID:
|
|
|
|
Name = "unsigned long long";
|
|
|
|
Size = 7;
|
|
|
|
Encoding = DW_ATE_unsigned;
|
|
|
|
break;
|
|
|
|
case Type::LongTyID:
|
|
|
|
Name = "long long";
|
|
|
|
Size = 7;
|
|
|
|
Encoding = DW_ATE_signed;
|
|
|
|
break;
|
|
|
|
case Type::FloatTyID:
|
|
|
|
Name = "float";
|
|
|
|
Size = 4;
|
|
|
|
Encoding = DW_ATE_float;
|
|
|
|
break;
|
|
|
|
case Type::DoubleTyID:
|
|
|
|
Name = "double";
|
|
|
|
Size = 8;
|
|
|
|
Encoding = DW_ATE_float;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
// FIXME - handle more complex types.
|
|
|
|
Name = "unknown";
|
|
|
|
Size = 1;
|
|
|
|
Encoding = DW_ATE_address;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
// construct the type DIE.
|
|
|
|
Slot = new DIE(DW_TAG_base_type);
|
|
|
|
Slot->AddString(DW_AT_name, DW_FORM_string, Name);
|
|
|
|
Slot->AddUInt (DW_AT_byte_size, 0, Size);
|
|
|
|
Slot->AddUInt (DW_AT_encoding, DW_FORM_data1, Encoding);
|
|
|
|
|
2006-03-01 18:20:30 +00:00
|
|
|
// Add to context.
|
|
|
|
Context->AddChild(Slot);
|
2006-02-22 19:02:11 +00:00
|
|
|
|
|
|
|
return Slot;
|
|
|
|
}
|
|
|
|
|
2006-02-23 16:58:18 +00:00
|
|
|
/// NewType - Create a new type DIE.
|
|
|
|
///
|
2006-03-01 18:20:30 +00:00
|
|
|
DIE *DwarfWriter::NewType(DIE *Context, TypeDesc *TyDesc) {
|
2006-02-24 16:46:40 +00:00
|
|
|
// FIXME - hack to get around NULL types short term.
|
2006-03-01 18:20:30 +00:00
|
|
|
if (!TyDesc) return NewBasicType(Context, Type::IntTy);
|
|
|
|
|
|
|
|
// FIXME - Should handle other contexts that compile units.
|
2006-02-24 16:46:40 +00:00
|
|
|
|
2006-02-23 16:58:18 +00:00
|
|
|
// Check for pre-existence.
|
|
|
|
DIE *&Slot = DescToDieMap[TyDesc];
|
|
|
|
if (Slot) return Slot;
|
|
|
|
|
|
|
|
// Get core information.
|
|
|
|
const std::string &Name = TyDesc->getName();
|
2006-03-01 18:13:05 +00:00
|
|
|
uint64_t Size = TyDesc->getSize() >> 3;
|
2006-02-23 16:58:18 +00:00
|
|
|
|
2006-02-23 22:37:30 +00:00
|
|
|
DIE *Ty = NULL;
|
2006-02-23 16:58:18 +00:00
|
|
|
|
2006-02-23 22:37:30 +00:00
|
|
|
if (BasicTypeDesc *BasicTy = dyn_cast<BasicTypeDesc>(TyDesc)) {
|
2006-02-24 16:46:40 +00:00
|
|
|
// Fundamental types like int, float, bool
|
2006-02-23 22:37:30 +00:00
|
|
|
Slot = Ty = new DIE(DW_TAG_base_type);
|
|
|
|
unsigned Encoding = BasicTy->getEncoding();
|
|
|
|
Ty->AddUInt (DW_AT_encoding, DW_FORM_data1, Encoding);
|
2006-02-24 16:46:40 +00:00
|
|
|
} else if (DerivedTypeDesc *DerivedTy = dyn_cast<DerivedTypeDesc>(TyDesc)) {
|
|
|
|
// Create specific DIE.
|
2006-03-01 20:39:36 +00:00
|
|
|
Slot = Ty = new DIE(DerivedTy->getTag());
|
2006-02-23 16:58:18 +00:00
|
|
|
|
2006-02-24 16:46:40 +00:00
|
|
|
// Map to main type, void will not have a type.
|
|
|
|
if (TypeDesc *FromTy = DerivedTy->getFromType()) {
|
2006-03-01 18:20:30 +00:00
|
|
|
Ty->AddDIEntry(DW_AT_type, DW_FORM_ref4, NewType(Context, FromTy));
|
2006-02-24 16:46:40 +00:00
|
|
|
}
|
2006-03-01 17:53:02 +00:00
|
|
|
} else if (CompositeTypeDesc *CompTy = dyn_cast<CompositeTypeDesc>(TyDesc)) {
|
|
|
|
// Create specific DIE.
|
2006-03-01 20:39:36 +00:00
|
|
|
Slot = Ty = new DIE(CompTy->getTag());
|
2006-03-01 17:53:02 +00:00
|
|
|
std::vector<DebugInfoDesc *> &Elements = CompTy->getElements();
|
|
|
|
|
|
|
|
switch (CompTy->getTag()) {
|
2006-03-01 20:39:36 +00:00
|
|
|
case DW_TAG_array_type: {
|
2006-03-01 17:53:02 +00:00
|
|
|
// Add element type.
|
|
|
|
if (TypeDesc *FromTy = CompTy->getFromType()) {
|
2006-03-01 18:20:30 +00:00
|
|
|
Ty->AddDIEntry(DW_AT_type, DW_FORM_ref4, NewType(Context, FromTy));
|
2006-03-01 17:53:02 +00:00
|
|
|
}
|
|
|
|
// Don't emit size attribute.
|
|
|
|
Size = 0;
|
|
|
|
|
|
|
|
// Construct an anonymous type for index type.
|
|
|
|
DIE *IndexTy = new DIE(DW_TAG_base_type);
|
|
|
|
IndexTy->AddUInt(DW_AT_byte_size, 0, 4);
|
|
|
|
IndexTy->AddUInt(DW_AT_encoding, DW_FORM_data1, DW_ATE_signed);
|
|
|
|
// Add to context.
|
2006-03-01 18:20:30 +00:00
|
|
|
Context->AddChild(IndexTy);
|
2006-03-01 17:53:02 +00:00
|
|
|
|
|
|
|
// Add subranges to array type.
|
|
|
|
for(unsigned i = 0, N = Elements.size(); i < N; ++i) {
|
|
|
|
SubrangeDesc *SRD = cast<SubrangeDesc>(Elements[i]);
|
|
|
|
int64_t Lo = SRD->getLo();
|
|
|
|
int64_t Hi = SRD->getHi();
|
|
|
|
DIE *Subrange = new DIE(DW_TAG_subrange_type);
|
|
|
|
|
|
|
|
// If a range is available.
|
|
|
|
if (Lo != Hi) {
|
|
|
|
Subrange->AddDIEntry(DW_AT_type, DW_FORM_ref4, IndexTy);
|
|
|
|
// Only add low if non-zero.
|
2006-03-01 23:52:37 +00:00
|
|
|
if (Lo) Subrange->AddSInt(DW_AT_lower_bound, 0, Lo);
|
|
|
|
Subrange->AddSInt(DW_AT_upper_bound, 0, Hi);
|
2006-03-01 17:53:02 +00:00
|
|
|
}
|
|
|
|
Ty->AddChild(Subrange);
|
|
|
|
}
|
|
|
|
|
|
|
|
break;
|
|
|
|
}
|
2006-03-03 15:06:57 +00:00
|
|
|
case DW_TAG_structure_type:
|
2006-03-01 20:39:36 +00:00
|
|
|
case DW_TAG_union_type: {
|
2006-03-03 15:06:57 +00:00
|
|
|
// FIXME - this is just the basics.
|
|
|
|
// Add elements to structure type.
|
|
|
|
for(unsigned i = 0, N = Elements.size(); i < N; ++i) {
|
|
|
|
DerivedTypeDesc *MemberDesc = cast<DerivedTypeDesc>(Elements[i]);
|
2006-03-03 21:00:14 +00:00
|
|
|
|
|
|
|
// Extract the basic information.
|
2006-03-03 15:06:57 +00:00
|
|
|
const std::string &Name = MemberDesc->getName();
|
|
|
|
unsigned Line = MemberDesc->getLine();
|
|
|
|
TypeDesc *MemTy = MemberDesc->getFromType();
|
|
|
|
uint64_t Size = MemberDesc->getSize();
|
|
|
|
uint64_t Offset = MemberDesc->getOffset();
|
|
|
|
|
2006-03-03 21:00:14 +00:00
|
|
|
// Construct member die.
|
2006-03-03 15:06:57 +00:00
|
|
|
DIE *Member = new DIE(DW_TAG_member);
|
2006-03-03 21:00:14 +00:00
|
|
|
|
|
|
|
// Add details.
|
2006-03-03 15:06:57 +00:00
|
|
|
if (!Name.empty()) Member->AddString(DW_AT_name, DW_FORM_string, Name);
|
|
|
|
if (CompileUnitDesc *File = MemberDesc->getFile()) {
|
|
|
|
CompileUnit *FileUnit = FindCompileUnit(File);
|
|
|
|
unsigned FileID = FileUnit->getID();
|
|
|
|
int Line = TyDesc->getLine();
|
|
|
|
Member->AddUInt(DW_AT_decl_file, 0, FileID);
|
|
|
|
Member->AddUInt(DW_AT_decl_line, 0, Line);
|
|
|
|
}
|
2006-03-03 21:00:14 +00:00
|
|
|
|
2006-03-03 15:06:57 +00:00
|
|
|
if (TypeDesc *FromTy = MemberDesc->getFromType()) {
|
|
|
|
Member->AddDIEntry(DW_AT_type, DW_FORM_ref4,
|
|
|
|
NewType(Context, FromTy));
|
|
|
|
}
|
2006-03-03 21:00:14 +00:00
|
|
|
|
|
|
|
// Add computation for offset.
|
|
|
|
DIEBlock *Block = new DIEBlock();
|
|
|
|
Block->AddUInt(DW_FORM_data1, DW_OP_plus_uconst);
|
|
|
|
Block->AddUInt(DW_FORM_udata, Offset >> 3);
|
|
|
|
Block->ComputeSize(*this);
|
|
|
|
Member->AddBlock(DW_AT_data_member_location, 0, Block);
|
|
|
|
|
2006-03-03 15:06:57 +00:00
|
|
|
Ty->AddChild(Member);
|
|
|
|
}
|
2006-03-01 17:53:02 +00:00
|
|
|
break;
|
|
|
|
}
|
2006-03-01 20:39:36 +00:00
|
|
|
case DW_TAG_enumeration_type: {
|
2006-03-01 23:52:37 +00:00
|
|
|
// Add enumerators to enumeration type.
|
|
|
|
for(unsigned i = 0, N = Elements.size(); i < N; ++i) {
|
|
|
|
EnumeratorDesc *ED = cast<EnumeratorDesc>(Elements[i]);
|
|
|
|
const std::string &Name = ED->getName();
|
|
|
|
int64_t Value = ED->getValue();
|
|
|
|
DIE *Enumerator = new DIE(DW_TAG_enumerator);
|
|
|
|
Enumerator->AddString(DW_AT_name, DW_FORM_string, Name);
|
|
|
|
Enumerator->AddSInt(DW_AT_const_value, DW_FORM_sdata, Value);
|
|
|
|
Ty->AddChild(Enumerator);
|
|
|
|
}
|
|
|
|
|
2006-03-01 17:53:02 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
default: break;
|
|
|
|
}
|
2006-02-23 16:58:18 +00:00
|
|
|
}
|
2006-02-23 22:37:30 +00:00
|
|
|
|
|
|
|
assert(Ty && "Type not supported yet");
|
2006-02-23 16:58:18 +00:00
|
|
|
|
2006-02-24 16:46:40 +00:00
|
|
|
// Add size if non-zero (derived types don't have a size.)
|
2006-02-23 22:37:30 +00:00
|
|
|
if (Size) Ty->AddUInt(DW_AT_byte_size, 0, Size);
|
2006-02-24 16:46:40 +00:00
|
|
|
// Add name if not anonymous or intermediate type.
|
2006-02-23 22:37:30 +00:00
|
|
|
if (!Name.empty()) Ty->AddString(DW_AT_name, DW_FORM_string, Name);
|
2006-02-24 16:46:40 +00:00
|
|
|
// Add source line info if present.
|
|
|
|
if (CompileUnitDesc *File = TyDesc->getFile()) {
|
2006-02-27 17:27:12 +00:00
|
|
|
CompileUnit *FileUnit = FindCompileUnit(File);
|
|
|
|
unsigned FileID = FileUnit->getID();
|
2006-02-24 16:46:40 +00:00
|
|
|
int Line = TyDesc->getLine();
|
|
|
|
Ty->AddUInt(DW_AT_decl_file, 0, FileID);
|
|
|
|
Ty->AddUInt(DW_AT_decl_line, 0, Line);
|
|
|
|
}
|
2006-02-23 22:37:30 +00:00
|
|
|
|
2006-02-23 16:58:18 +00:00
|
|
|
// Add to context owner.
|
2006-03-01 18:20:30 +00:00
|
|
|
Context->AddChild(Ty);
|
2006-02-23 16:58:18 +00:00
|
|
|
|
|
|
|
return Slot;
|
|
|
|
}
|
|
|
|
|
2006-02-27 17:27:12 +00:00
|
|
|
/// NewCompileUnit - Create new compile unit and it's die.
|
2006-01-17 17:31:53 +00:00
|
|
|
///
|
2006-02-27 17:27:12 +00:00
|
|
|
CompileUnit *DwarfWriter::NewCompileUnit(CompileUnitDesc *UnitDesc,
|
|
|
|
unsigned ID) {
|
|
|
|
// Construct debug information entry.
|
|
|
|
DIE *Die = new DIE(DW_TAG_compile_unit);
|
|
|
|
Die->AddLabel (DW_AT_stmt_list, DW_FORM_data4, DWLabel("line", 0));
|
|
|
|
Die->AddLabel (DW_AT_high_pc, DW_FORM_addr, DWLabel("text_end", 0));
|
|
|
|
Die->AddLabel (DW_AT_low_pc, DW_FORM_addr, DWLabel("text_begin", 0));
|
|
|
|
Die->AddString(DW_AT_producer, DW_FORM_string, UnitDesc->getProducer());
|
|
|
|
Die->AddUInt (DW_AT_language, DW_FORM_data1, UnitDesc->getLanguage());
|
|
|
|
Die->AddString(DW_AT_name, DW_FORM_string, UnitDesc->getFileName());
|
|
|
|
Die->AddString(DW_AT_comp_dir, DW_FORM_string, UnitDesc->getDirectory());
|
|
|
|
|
|
|
|
// Add die to descriptor map.
|
|
|
|
DescToDieMap[UnitDesc] = Die;
|
|
|
|
|
|
|
|
// Construct compile unit.
|
|
|
|
CompileUnit *Unit = new CompileUnit(UnitDesc, ID, Die);
|
|
|
|
|
|
|
|
// Add Unit to compile unit map.
|
|
|
|
DescToUnitMap[UnitDesc] = Unit;
|
2006-01-17 17:31:53 +00:00
|
|
|
|
2006-01-20 20:34:06 +00:00
|
|
|
return Unit;
|
2006-01-17 17:31:53 +00:00
|
|
|
}
|
|
|
|
|
2006-02-27 17:27:12 +00:00
|
|
|
/// FindCompileUnit - Get the compile unit for the given descriptor.
|
|
|
|
///
|
|
|
|
CompileUnit *DwarfWriter::FindCompileUnit(CompileUnitDesc *UnitDesc) {
|
|
|
|
CompileUnit *Unit = DescToUnitMap[UnitDesc];
|
|
|
|
assert(Unit && "Missing compile unit.");
|
|
|
|
return Unit;
|
|
|
|
}
|
|
|
|
|
2006-02-22 19:02:11 +00:00
|
|
|
/// NewGlobalVariable - Add a new global variable DIE.
|
|
|
|
///
|
|
|
|
DIE *DwarfWriter::NewGlobalVariable(GlobalVariableDesc *GVD) {
|
|
|
|
// Check for pre-existence.
|
|
|
|
DIE *&Slot = DescToDieMap[GVD];
|
|
|
|
if (Slot) return Slot;
|
|
|
|
|
|
|
|
// Get the compile unit context.
|
2006-02-27 17:27:12 +00:00
|
|
|
CompileUnitDesc *UnitDesc = static_cast<CompileUnitDesc *>(GVD->getContext());
|
|
|
|
CompileUnit *Unit = FindCompileUnit(UnitDesc);
|
2006-02-22 19:02:11 +00:00
|
|
|
// Get the global variable itself.
|
|
|
|
GlobalVariable *GV = GVD->getGlobalVariable();
|
|
|
|
// Generate the mangled name.
|
|
|
|
std::string MangledName = Asm->Mang->getValueName(GV);
|
|
|
|
|
|
|
|
// Gather the details (simplify add attribute code.)
|
|
|
|
const std::string &Name = GVD->getName();
|
2006-02-27 17:27:12 +00:00
|
|
|
unsigned FileID = Unit->getID();
|
2006-02-22 19:02:11 +00:00
|
|
|
unsigned Line = GVD->getLine();
|
|
|
|
|
2006-02-23 16:58:18 +00:00
|
|
|
// Get the global's type.
|
2006-03-01 18:20:30 +00:00
|
|
|
DIE *Type = NewType(Unit->getDie(), GVD->getTypeDesc());
|
2006-02-23 16:58:18 +00:00
|
|
|
|
|
|
|
// Create the globale variable DIE.
|
2006-02-22 19:02:11 +00:00
|
|
|
DIE *VariableDie = new DIE(DW_TAG_variable);
|
|
|
|
VariableDie->AddString (DW_AT_name, DW_FORM_string, Name);
|
|
|
|
VariableDie->AddUInt (DW_AT_decl_file, 0, FileID);
|
|
|
|
VariableDie->AddUInt (DW_AT_decl_line, 0, Line);
|
|
|
|
VariableDie->AddDIEntry (DW_AT_type, DW_FORM_ref4, Type);
|
|
|
|
VariableDie->AddUInt (DW_AT_external, DW_FORM_flag, 1);
|
2006-03-03 21:00:14 +00:00
|
|
|
|
|
|
|
DIEBlock *Block = new DIEBlock();
|
|
|
|
Block->AddUInt(DW_FORM_data1, DW_OP_addr);
|
|
|
|
Block->AddObjectLabel(DW_FORM_udata, MangledName);
|
|
|
|
Block->ComputeSize(*this);
|
|
|
|
VariableDie->AddBlock(DW_AT_location, 0, Block);
|
2006-02-22 19:02:11 +00:00
|
|
|
|
|
|
|
// Add to map.
|
|
|
|
Slot = VariableDie;
|
|
|
|
|
|
|
|
// Add to context owner.
|
2006-02-27 17:27:12 +00:00
|
|
|
Unit->getDie()->AddChild(VariableDie);
|
2006-02-22 19:02:11 +00:00
|
|
|
|
|
|
|
// Expose as global.
|
2006-02-27 17:27:12 +00:00
|
|
|
// FIXME - need to check external flag.
|
|
|
|
Unit->AddGlobal(Name, VariableDie);
|
2006-02-22 19:02:11 +00:00
|
|
|
|
|
|
|
return VariableDie;
|
|
|
|
}
|
|
|
|
|
|
|
|
/// NewSubprogram - Add a new subprogram DIE.
|
|
|
|
///
|
|
|
|
DIE *DwarfWriter::NewSubprogram(SubprogramDesc *SPD) {
|
|
|
|
// Check for pre-existence.
|
|
|
|
DIE *&Slot = DescToDieMap[SPD];
|
|
|
|
if (Slot) return Slot;
|
|
|
|
|
|
|
|
// Get the compile unit context.
|
2006-02-27 17:27:12 +00:00
|
|
|
CompileUnitDesc *UnitDesc = static_cast<CompileUnitDesc *>(SPD->getContext());
|
|
|
|
CompileUnit *Unit = FindCompileUnit(UnitDesc);
|
2006-02-22 19:02:11 +00:00
|
|
|
|
|
|
|
// Gather the details (simplify add attribute code.)
|
|
|
|
const std::string &Name = SPD->getName();
|
2006-02-27 17:27:12 +00:00
|
|
|
unsigned FileID = Unit->getID();
|
2006-02-22 19:02:11 +00:00
|
|
|
// FIXME - faking the line for the time being.
|
|
|
|
unsigned Line = 1;
|
|
|
|
|
|
|
|
// FIXME - faking the type for the time being.
|
2006-03-01 18:20:30 +00:00
|
|
|
DIE *Type = NewBasicType(Unit->getDie(), Type::IntTy);
|
2006-02-22 19:02:11 +00:00
|
|
|
|
2006-02-27 20:37:42 +00:00
|
|
|
DIE *SubprogramDie = new DIE(DW_TAG_subprogram);
|
2006-02-22 19:02:11 +00:00
|
|
|
SubprogramDie->AddString (DW_AT_name, DW_FORM_string, Name);
|
|
|
|
SubprogramDie->AddUInt (DW_AT_decl_file, 0, FileID);
|
|
|
|
SubprogramDie->AddUInt (DW_AT_decl_line, 0, Line);
|
|
|
|
SubprogramDie->AddDIEntry (DW_AT_type, DW_FORM_ref4, Type);
|
|
|
|
SubprogramDie->AddUInt (DW_AT_external, DW_FORM_flag, 1);
|
|
|
|
|
|
|
|
// Add to map.
|
|
|
|
Slot = SubprogramDie;
|
|
|
|
|
|
|
|
// Add to context owner.
|
2006-02-27 17:27:12 +00:00
|
|
|
Unit->getDie()->AddChild(SubprogramDie);
|
2006-02-22 19:02:11 +00:00
|
|
|
|
|
|
|
// Expose as global.
|
2006-02-27 17:27:12 +00:00
|
|
|
Unit->AddGlobal(Name, SubprogramDie);
|
2006-02-22 19:02:11 +00:00
|
|
|
|
|
|
|
return SubprogramDie;
|
|
|
|
}
|
|
|
|
|
2006-01-17 17:31:53 +00:00
|
|
|
/// EmitInitial - Emit initial Dwarf declarations. This is necessary for cc
|
|
|
|
/// tools to recognize the object file contains Dwarf information.
|
2006-01-04 22:28:25 +00:00
|
|
|
///
|
|
|
|
void DwarfWriter::EmitInitial() const {
|
2006-01-17 17:31:53 +00:00
|
|
|
// Dwarf sections base addresses.
|
2006-02-22 19:02:11 +00:00
|
|
|
Asm->SwitchSection(DwarfFrameSection, 0);
|
|
|
|
EmitLabel("section_frame", 0);
|
2006-01-04 13:52:30 +00:00
|
|
|
Asm->SwitchSection(DwarfInfoSection, 0);
|
2006-02-22 19:02:11 +00:00
|
|
|
EmitLabel("section_info", 0);
|
2006-01-04 13:52:30 +00:00
|
|
|
EmitLabel("info", 0);
|
2006-02-22 19:02:11 +00:00
|
|
|
Asm->SwitchSection(DwarfAbbrevSection, 0);
|
|
|
|
EmitLabel("section_abbrev", 0);
|
|
|
|
EmitLabel("abbrev", 0);
|
|
|
|
Asm->SwitchSection(DwarfARangesSection, 0);
|
|
|
|
EmitLabel("section_aranges", 0);
|
|
|
|
Asm->SwitchSection(DwarfMacInfoSection, 0);
|
|
|
|
EmitLabel("section_macinfo", 0);
|
2006-01-04 13:52:30 +00:00
|
|
|
Asm->SwitchSection(DwarfLineSection, 0);
|
2006-02-22 19:02:11 +00:00
|
|
|
EmitLabel("section_line", 0);
|
2006-01-04 13:52:30 +00:00
|
|
|
EmitLabel("line", 0);
|
2006-02-22 19:02:11 +00:00
|
|
|
Asm->SwitchSection(DwarfLocSection, 0);
|
|
|
|
EmitLabel("section_loc", 0);
|
|
|
|
Asm->SwitchSection(DwarfPubNamesSection, 0);
|
|
|
|
EmitLabel("section_pubnames", 0);
|
|
|
|
Asm->SwitchSection(DwarfStrSection, 0);
|
|
|
|
EmitLabel("section_str", 0);
|
|
|
|
Asm->SwitchSection(DwarfRangesSection, 0);
|
|
|
|
EmitLabel("section_ranges", 0);
|
|
|
|
|
2006-01-17 17:31:53 +00:00
|
|
|
Asm->SwitchSection(TextSection, 0);
|
|
|
|
EmitLabel("text_begin", 0);
|
|
|
|
Asm->SwitchSection(DataSection, 0);
|
|
|
|
EmitLabel("data_begin", 0);
|
2006-01-04 13:52:30 +00:00
|
|
|
}
|
|
|
|
|
2006-01-17 17:31:53 +00:00
|
|
|
/// EmitDIE - Recusively Emits a debug information entry.
|
|
|
|
///
|
|
|
|
void DwarfWriter::EmitDIE(DIE *Die) const {
|
|
|
|
// Get the abbreviation for this DIE.
|
|
|
|
unsigned AbbrevID = Die->getAbbrevID();
|
|
|
|
const DIEAbbrev &Abbrev = Abbreviations[AbbrevID];
|
2006-02-27 12:43:29 +00:00
|
|
|
|
|
|
|
O << "\n";
|
2006-01-17 17:31:53 +00:00
|
|
|
|
|
|
|
// Emit the code (index) for the abbreviation.
|
|
|
|
EmitULEB128Bytes(AbbrevID);
|
|
|
|
EOL(std::string("Abbrev [" +
|
|
|
|
utostr(AbbrevID) +
|
2006-02-27 12:43:29 +00:00
|
|
|
"] 0x" + utohexstr(Die->getOffset()) +
|
|
|
|
":0x" + utohexstr(Die->getSize()) + " " +
|
|
|
|
TagString(Abbrev.getTag())));
|
2006-01-17 17:31:53 +00:00
|
|
|
|
|
|
|
const std::vector<DIEValue *> &Values = Die->getValues();
|
2006-01-20 20:34:06 +00:00
|
|
|
const std::vector<DIEAbbrevData> &AbbrevData = Abbrev.getData();
|
2006-01-17 17:31:53 +00:00
|
|
|
|
|
|
|
// Emit the DIE attribute values.
|
2006-01-24 00:49:18 +00:00
|
|
|
for (unsigned i = 0, N = Values.size(); i < N; ++i) {
|
2006-01-20 20:34:06 +00:00
|
|
|
unsigned Attr = AbbrevData[i].getAttribute();
|
|
|
|
unsigned Form = AbbrevData[i].getForm();
|
2006-01-17 17:31:53 +00:00
|
|
|
assert(Form && "Too many attributes for DIE (check abbreviation)");
|
|
|
|
|
|
|
|
switch (Attr) {
|
|
|
|
case DW_AT_sibling: {
|
2006-01-27 20:31:25 +00:00
|
|
|
EmitInt32(Die->SiblingOffset());
|
2006-01-17 17:31:53 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
default: {
|
|
|
|
// Emit an attribute using the defined form.
|
|
|
|
Values[i]->EmitValue(*this, Form);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
EOL(AttributeString(Attr));
|
|
|
|
}
|
|
|
|
|
|
|
|
// Emit the DIE children if any.
|
|
|
|
if (Abbrev.getChildrenFlag() == DW_CHILDREN_yes) {
|
|
|
|
const std::vector<DIE *> &Children = Die->getChildren();
|
|
|
|
|
2006-01-24 00:49:18 +00:00
|
|
|
for (unsigned j = 0, M = Children.size(); j < M; ++j) {
|
2006-01-17 17:31:53 +00:00
|
|
|
// FIXME - handle sibling offsets.
|
|
|
|
// FIXME - handle all DIE types.
|
|
|
|
EmitDIE(Children[j]);
|
|
|
|
}
|
|
|
|
|
2006-01-27 20:31:25 +00:00
|
|
|
EmitInt8(0); EOL("End Of Children Mark");
|
2006-01-17 17:31:53 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/// SizeAndOffsetDie - Compute the size and offset of a DIE.
|
|
|
|
///
|
2006-02-22 19:02:11 +00:00
|
|
|
unsigned DwarfWriter::SizeAndOffsetDie(DIE *Die, unsigned Offset) {
|
|
|
|
// Record the abbreviation.
|
|
|
|
Die->Complete(*this);
|
|
|
|
|
2006-01-17 17:31:53 +00:00
|
|
|
// Get the abbreviation for this DIE.
|
|
|
|
unsigned AbbrevID = Die->getAbbrevID();
|
|
|
|
const DIEAbbrev &Abbrev = Abbreviations[AbbrevID];
|
|
|
|
|
|
|
|
// Set DIE offset
|
|
|
|
Die->setOffset(Offset);
|
|
|
|
|
|
|
|
// Start the size with the size of abbreviation code.
|
|
|
|
Offset += SizeULEB128(AbbrevID);
|
|
|
|
|
|
|
|
const std::vector<DIEValue *> &Values = Die->getValues();
|
2006-01-20 20:34:06 +00:00
|
|
|
const std::vector<DIEAbbrevData> &AbbrevData = Abbrev.getData();
|
2006-01-17 17:31:53 +00:00
|
|
|
|
|
|
|
// Emit the DIE attribute values.
|
2006-01-24 00:49:18 +00:00
|
|
|
for (unsigned i = 0, N = Values.size(); i < N; ++i) {
|
2006-01-17 17:31:53 +00:00
|
|
|
// Size attribute value.
|
2006-01-20 20:34:06 +00:00
|
|
|
Offset += Values[i]->SizeOf(*this, AbbrevData[i].getForm());
|
2006-01-17 17:31:53 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
// Emit the DIE children if any.
|
|
|
|
if (Abbrev.getChildrenFlag() == DW_CHILDREN_yes) {
|
|
|
|
const std::vector<DIE *> &Children = Die->getChildren();
|
|
|
|
|
2006-01-24 00:49:18 +00:00
|
|
|
for (unsigned j = 0, M = Children.size(); j < M; ++j) {
|
2006-01-17 17:31:53 +00:00
|
|
|
// FIXME - handle sibling offsets.
|
|
|
|
// FIXME - handle all DIE types.
|
|
|
|
Offset = SizeAndOffsetDie(Children[j], Offset);
|
|
|
|
}
|
|
|
|
|
|
|
|
// End of children marker.
|
|
|
|
Offset += sizeof(int8_t);
|
|
|
|
}
|
|
|
|
|
|
|
|
Die->setSize(Offset - Die->getOffset());
|
|
|
|
return Offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
/// SizeAndOffsets - Compute the size and offset of all the DIEs.
|
|
|
|
///
|
|
|
|
void DwarfWriter::SizeAndOffsets() {
|
|
|
|
|
|
|
|
// Process each compile unit.
|
2006-01-24 00:49:18 +00:00
|
|
|
for (unsigned i = 0, N = CompileUnits.size(); i < N; ++i) {
|
2006-02-27 17:27:12 +00:00
|
|
|
CompileUnit *Unit = CompileUnits[i];
|
|
|
|
if (Unit->hasContent()) {
|
|
|
|
// Compute size of compile unit header
|
|
|
|
unsigned Offset = sizeof(int32_t) + // Length of Compilation Unit Info
|
|
|
|
sizeof(int16_t) + // DWARF version number
|
|
|
|
sizeof(int32_t) + // Offset Into Abbrev. Section
|
|
|
|
sizeof(int8_t); // Pointer Size (in bytes)
|
|
|
|
|
|
|
|
SizeAndOffsetDie(Unit->getDie(), Offset);
|
|
|
|
}
|
2006-01-17 17:31:53 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/// EmitDebugInfo - Emit the debug info section.
|
|
|
|
///
|
|
|
|
void DwarfWriter::EmitDebugInfo() const {
|
|
|
|
// Start debug info section.
|
|
|
|
Asm->SwitchSection(DwarfInfoSection, 0);
|
|
|
|
|
2006-02-27 17:27:12 +00:00
|
|
|
// Process each compile unit.
|
|
|
|
for (unsigned i = 0, N = CompileUnits.size(); i < N; ++i) {
|
|
|
|
CompileUnit *Unit = CompileUnits[i];
|
|
|
|
|
|
|
|
if (Unit->hasContent()) {
|
|
|
|
DIE *Die = Unit->getDie();
|
2006-02-27 12:43:29 +00:00
|
|
|
// Emit the compile units header.
|
2006-02-27 17:27:12 +00:00
|
|
|
EmitLabel("info_begin", Unit->getID());
|
2006-02-27 12:43:29 +00:00
|
|
|
// Emit size of content not including length itself
|
2006-02-27 17:27:12 +00:00
|
|
|
unsigned ContentSize = Die->getSize() +
|
2006-02-27 12:43:29 +00:00
|
|
|
sizeof(int16_t) + // DWARF version number
|
|
|
|
sizeof(int32_t) + // Offset Into Abbrev. Section
|
|
|
|
sizeof(int8_t); // Pointer Size (in bytes)
|
|
|
|
|
|
|
|
EmitInt32(ContentSize); EOL("Length of Compilation Unit Info");
|
|
|
|
EmitInt16(DWARF_VERSION); EOL("DWARF version number");
|
|
|
|
EmitReference("abbrev_begin", 0); EOL("Offset Into Abbrev. Section");
|
|
|
|
EmitInt8(AddressSize); EOL("Address Size (in bytes)");
|
|
|
|
|
2006-02-27 17:27:12 +00:00
|
|
|
EmitDIE(Die);
|
|
|
|
EmitLabel("info_end", Unit->getID());
|
2006-01-17 17:31:53 +00:00
|
|
|
}
|
2006-02-27 12:43:29 +00:00
|
|
|
|
|
|
|
O << "\n";
|
2006-01-17 17:31:53 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/// EmitAbbreviations - Emit the abbreviation section.
|
|
|
|
///
|
|
|
|
void DwarfWriter::EmitAbbreviations() const {
|
2006-01-20 20:34:06 +00:00
|
|
|
// Check to see if it is worth the effort.
|
|
|
|
if (!Abbreviations.empty()) {
|
|
|
|
// Start the debug abbrev section.
|
|
|
|
Asm->SwitchSection(DwarfAbbrevSection, 0);
|
2006-01-17 17:31:53 +00:00
|
|
|
|
2006-01-20 20:34:06 +00:00
|
|
|
EmitLabel("abbrev_begin", 0);
|
2006-01-17 17:31:53 +00:00
|
|
|
|
2006-01-20 20:34:06 +00:00
|
|
|
// For each abbrevation.
|
|
|
|
for (unsigned AbbrevID = 1, NAID = Abbreviations.size();
|
2006-01-24 00:49:18 +00:00
|
|
|
AbbrevID <= NAID; ++AbbrevID) {
|
2006-01-20 20:34:06 +00:00
|
|
|
// Get abbreviation data
|
|
|
|
const DIEAbbrev &Abbrev = Abbreviations[AbbrevID];
|
2006-01-17 17:31:53 +00:00
|
|
|
|
2006-01-20 20:34:06 +00:00
|
|
|
// Emit the abbrevations code (base 1 index.)
|
|
|
|
EmitULEB128Bytes(AbbrevID); EOL("Abbreviation Code");
|
2006-01-17 17:31:53 +00:00
|
|
|
|
2006-01-20 20:34:06 +00:00
|
|
|
// Emit the abbreviations data.
|
|
|
|
Abbrev.Emit(*this);
|
2006-02-27 12:43:29 +00:00
|
|
|
|
|
|
|
O << "\n";
|
2006-01-17 17:31:53 +00:00
|
|
|
}
|
2006-01-20 20:34:06 +00:00
|
|
|
|
|
|
|
EmitLabel("abbrev_end", 0);
|
2006-02-27 12:43:29 +00:00
|
|
|
|
|
|
|
O << "\n";
|
2006-01-17 17:31:53 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/// EmitDebugLines - Emit source line information.
|
|
|
|
///
|
|
|
|
void DwarfWriter::EmitDebugLines() const {
|
|
|
|
// Minimum line delta, thus ranging from -10..(255-10).
|
|
|
|
const int MinLineDelta = -(DW_LNS_fixed_advance_pc + 1);
|
|
|
|
// Maximum line delta, thus ranging from -10..(255-10).
|
|
|
|
const int MaxLineDelta = 255 + MinLineDelta;
|
|
|
|
|
|
|
|
// Start the dwarf line section.
|
|
|
|
Asm->SwitchSection(DwarfLineSection, 0);
|
|
|
|
|
|
|
|
// Construct the section header.
|
|
|
|
|
|
|
|
EmitDifference("line_end", 0, "line_begin", 0);
|
|
|
|
EOL("Length of Source Line Info");
|
|
|
|
EmitLabel("line_begin", 0);
|
|
|
|
|
2006-01-27 20:31:25 +00:00
|
|
|
EmitInt16(DWARF_VERSION); EOL("DWARF version number");
|
2006-01-17 17:31:53 +00:00
|
|
|
|
|
|
|
EmitDifference("line_prolog_end", 0, "line_prolog_begin", 0);
|
|
|
|
EOL("Prolog Length");
|
|
|
|
EmitLabel("line_prolog_begin", 0);
|
|
|
|
|
2006-01-27 20:31:25 +00:00
|
|
|
EmitInt8(1); EOL("Minimum Instruction Length");
|
2006-01-17 17:31:53 +00:00
|
|
|
|
2006-01-27 20:31:25 +00:00
|
|
|
EmitInt8(1); EOL("Default is_stmt_start flag");
|
2006-01-17 17:31:53 +00:00
|
|
|
|
2006-01-27 20:31:25 +00:00
|
|
|
EmitInt8(MinLineDelta); EOL("Line Base Value (Special Opcodes)");
|
2006-01-17 17:31:53 +00:00
|
|
|
|
2006-01-27 20:31:25 +00:00
|
|
|
EmitInt8(MaxLineDelta); EOL("Line Range Value (Special Opcodes)");
|
2006-01-17 17:31:53 +00:00
|
|
|
|
2006-01-27 20:31:25 +00:00
|
|
|
EmitInt8(-MinLineDelta); EOL("Special Opcode Base");
|
2006-01-17 17:31:53 +00:00
|
|
|
|
|
|
|
// Line number standard opcode encodings argument count
|
2006-01-27 20:31:25 +00:00
|
|
|
EmitInt8(0); EOL("DW_LNS_copy arg count");
|
|
|
|
EmitInt8(1); EOL("DW_LNS_advance_pc arg count");
|
|
|
|
EmitInt8(1); EOL("DW_LNS_advance_line arg count");
|
|
|
|
EmitInt8(1); EOL("DW_LNS_set_file arg count");
|
|
|
|
EmitInt8(1); EOL("DW_LNS_set_column arg count");
|
|
|
|
EmitInt8(0); EOL("DW_LNS_negate_stmt arg count");
|
|
|
|
EmitInt8(0); EOL("DW_LNS_set_basic_block arg count");
|
|
|
|
EmitInt8(0); EOL("DW_LNS_const_add_pc arg count");
|
|
|
|
EmitInt8(1); EOL("DW_LNS_fixed_advance_pc arg count");
|
2006-01-17 17:31:53 +00:00
|
|
|
|
|
|
|
const UniqueVector<std::string> &Directories = DebugInfo->getDirectories();
|
|
|
|
const UniqueVector<SourceFileInfo> &SourceFiles = DebugInfo->getSourceFiles();
|
|
|
|
|
|
|
|
// Emit directories.
|
|
|
|
for (unsigned DirectoryID = 1, NDID = Directories.size();
|
2006-01-24 00:49:18 +00:00
|
|
|
DirectoryID <= NDID; ++DirectoryID) {
|
2006-01-17 17:31:53 +00:00
|
|
|
EmitString(Directories[DirectoryID]); EOL("Directory");
|
|
|
|
}
|
2006-01-27 20:31:25 +00:00
|
|
|
EmitInt8(0); EOL("End of directories");
|
2006-01-17 17:31:53 +00:00
|
|
|
|
|
|
|
// Emit files.
|
|
|
|
for (unsigned SourceID = 1, NSID = SourceFiles.size();
|
2006-01-24 00:49:18 +00:00
|
|
|
SourceID <= NSID; ++SourceID) {
|
2006-01-17 17:31:53 +00:00
|
|
|
const SourceFileInfo &SourceFile = SourceFiles[SourceID];
|
|
|
|
EmitString(SourceFile.getName()); EOL("Source");
|
|
|
|
EmitULEB128Bytes(SourceFile.getDirectoryID()); EOL("Directory #");
|
|
|
|
EmitULEB128Bytes(0); EOL("Mod date");
|
|
|
|
EmitULEB128Bytes(0); EOL("File size");
|
|
|
|
}
|
2006-01-27 20:31:25 +00:00
|
|
|
EmitInt8(0); EOL("End of files");
|
2006-01-17 17:31:53 +00:00
|
|
|
|
|
|
|
EmitLabel("line_prolog_end", 0);
|
|
|
|
|
|
|
|
// Emit line information
|
|
|
|
const std::vector<SourceLineInfo *> &LineInfos = DebugInfo->getSourceLines();
|
|
|
|
|
|
|
|
// Dwarf assumes we start with first line of first source file.
|
|
|
|
unsigned Source = 1;
|
|
|
|
unsigned Line = 1;
|
|
|
|
|
|
|
|
// Construct rows of the address, source, line, column matrix.
|
2006-01-24 00:49:18 +00:00
|
|
|
for (unsigned i = 0, N = LineInfos.size(); i < N; ++i) {
|
2006-01-17 17:31:53 +00:00
|
|
|
SourceLineInfo *LineInfo = LineInfos[i];
|
2006-02-22 19:02:11 +00:00
|
|
|
|
|
|
|
if (DwarfVerbose) {
|
|
|
|
unsigned SourceID = LineInfo->getSourceID();
|
|
|
|
const SourceFileInfo &SourceFile = SourceFiles[SourceID];
|
|
|
|
unsigned DirectoryID = SourceFile.getDirectoryID();
|
|
|
|
O << "\t"
|
|
|
|
<< Asm->CommentString << " "
|
|
|
|
<< Directories[DirectoryID]
|
|
|
|
<< SourceFile.getName() << ":"
|
|
|
|
<< LineInfo->getLine() << "\n";
|
|
|
|
}
|
2006-01-17 17:31:53 +00:00
|
|
|
|
|
|
|
// Define the line address.
|
2006-01-27 20:31:25 +00:00
|
|
|
EmitInt8(0); EOL("Extended Op");
|
|
|
|
EmitInt8(4 + 1); EOL("Op size");
|
|
|
|
EmitInt8(DW_LNE_set_address); EOL("DW_LNE_set_address");
|
2006-01-18 16:54:26 +00:00
|
|
|
EmitReference("loc", i + 1); EOL("Location label");
|
2006-01-17 17:31:53 +00:00
|
|
|
|
|
|
|
// If change of source, then switch to the new source.
|
|
|
|
if (Source != LineInfo->getSourceID()) {
|
|
|
|
Source = LineInfo->getSourceID();
|
2006-01-27 20:31:25 +00:00
|
|
|
EmitInt8(DW_LNS_set_file); EOL("DW_LNS_set_file");
|
2006-02-27 17:27:12 +00:00
|
|
|
EmitULEB128Bytes(Source); EOL("New Source");
|
2006-01-17 17:31:53 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
// If change of line.
|
|
|
|
if (Line != LineInfo->getLine()) {
|
|
|
|
// Determine offset.
|
|
|
|
int Offset = LineInfo->getLine() - Line;
|
|
|
|
int Delta = Offset - MinLineDelta;
|
|
|
|
|
|
|
|
// Update line.
|
|
|
|
Line = LineInfo->getLine();
|
|
|
|
|
|
|
|
// If delta is small enough and in range...
|
|
|
|
if (Delta >= 0 && Delta < (MaxLineDelta - 1)) {
|
|
|
|
// ... then use fast opcode.
|
2006-01-27 20:31:25 +00:00
|
|
|
EmitInt8(Delta - MinLineDelta); EOL("Line Delta");
|
2006-01-17 17:31:53 +00:00
|
|
|
} else {
|
|
|
|
// ... otherwise use long hand.
|
2006-01-27 20:31:25 +00:00
|
|
|
EmitInt8(DW_LNS_advance_line); EOL("DW_LNS_advance_line");
|
2006-01-17 17:31:53 +00:00
|
|
|
EmitSLEB128Bytes(Offset); EOL("Line Offset");
|
2006-01-27 20:31:25 +00:00
|
|
|
EmitInt8(DW_LNS_copy); EOL("DW_LNS_copy");
|
2006-01-17 17:31:53 +00:00
|
|
|
}
|
|
|
|
} else {
|
|
|
|
// Copy the previous row (different address or source)
|
2006-01-27 20:31:25 +00:00
|
|
|
EmitInt8(DW_LNS_copy); EOL("DW_LNS_copy");
|
2006-01-17 17:31:53 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2006-02-22 19:02:11 +00:00
|
|
|
// Define last address.
|
|
|
|
EmitInt8(0); EOL("Extended Op");
|
|
|
|
EmitInt8(4 + 1); EOL("Op size");
|
|
|
|
EmitInt8(DW_LNE_set_address); EOL("DW_LNE_set_address");
|
|
|
|
EmitReference("text_end", 0); EOL("Location label");
|
|
|
|
|
2006-01-17 17:31:53 +00:00
|
|
|
// Mark end of matrix.
|
2006-01-27 20:31:25 +00:00
|
|
|
EmitInt8(0); EOL("DW_LNE_end_sequence");
|
2006-01-17 17:31:53 +00:00
|
|
|
EmitULEB128Bytes(1); O << "\n";
|
2006-01-27 20:31:25 +00:00
|
|
|
EmitInt8(1); O << "\n";
|
2006-01-17 17:31:53 +00:00
|
|
|
|
|
|
|
EmitLabel("line_end", 0);
|
2006-02-27 12:43:29 +00:00
|
|
|
|
|
|
|
O << "\n";
|
2006-01-17 17:31:53 +00:00
|
|
|
}
|
2006-01-17 20:41:40 +00:00
|
|
|
|
|
|
|
/// EmitDebugFrame - Emit visible names into a debug frame section.
|
|
|
|
///
|
|
|
|
void DwarfWriter::EmitDebugFrame() {
|
2006-01-18 16:54:26 +00:00
|
|
|
// FIXME - Should be per frame
|
2006-01-17 20:41:40 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/// EmitDebugPubNames - Emit visible names into a debug pubnames section.
|
|
|
|
///
|
|
|
|
void DwarfWriter::EmitDebugPubNames() {
|
2006-02-27 17:27:12 +00:00
|
|
|
// Start the dwarf pubnames section.
|
|
|
|
Asm->SwitchSection(DwarfPubNamesSection, 0);
|
2006-01-20 20:34:06 +00:00
|
|
|
|
2006-02-27 17:27:12 +00:00
|
|
|
// Process each compile unit.
|
|
|
|
for (unsigned i = 0, N = CompileUnits.size(); i < N; ++i) {
|
|
|
|
CompileUnit *Unit = CompileUnits[i];
|
2006-01-20 20:34:06 +00:00
|
|
|
|
2006-02-27 17:27:12 +00:00
|
|
|
if (Unit->hasContent()) {
|
|
|
|
EmitDifference("pubnames_end", Unit->getID(),
|
|
|
|
"pubnames_begin", Unit->getID());
|
|
|
|
EOL("Length of Public Names Info");
|
|
|
|
|
|
|
|
EmitLabel("pubnames_begin", Unit->getID());
|
|
|
|
|
|
|
|
EmitInt16(DWARF_VERSION); EOL("DWARF Version");
|
|
|
|
|
|
|
|
EmitReference("info_begin", Unit->getID());
|
|
|
|
EOL("Offset of Compilation Unit Info");
|
2006-01-20 20:34:06 +00:00
|
|
|
|
2006-02-27 17:27:12 +00:00
|
|
|
EmitDifference("info_end", Unit->getID(), "info_begin", Unit->getID());
|
|
|
|
EOL("Compilation Unit Length");
|
2006-01-20 20:34:06 +00:00
|
|
|
|
2006-02-27 17:27:12 +00:00
|
|
|
std::map<std::string, DIE *> &Globals = Unit->getGlobals();
|
2006-01-20 20:34:06 +00:00
|
|
|
|
2006-02-27 17:27:12 +00:00
|
|
|
for (std::map<std::string, DIE *>::iterator GI = Globals.begin(),
|
|
|
|
GE = Globals.end();
|
|
|
|
GI != GE; ++GI) {
|
|
|
|
const std::string &Name = GI->first;
|
|
|
|
DIE * Entity = GI->second;
|
|
|
|
|
|
|
|
EmitInt32(Entity->getOffset()); EOL("DIE offset");
|
|
|
|
EmitString(Name); EOL("External Name");
|
|
|
|
}
|
|
|
|
|
|
|
|
EmitInt32(0); EOL("End Mark");
|
|
|
|
EmitLabel("pubnames_end", Unit->getID());
|
|
|
|
|
|
|
|
O << "\n";
|
2006-01-20 20:34:06 +00:00
|
|
|
}
|
|
|
|
}
|
2006-01-17 20:41:40 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/// EmitDebugStr - Emit visible names into a debug str section.
|
|
|
|
///
|
|
|
|
void DwarfWriter::EmitDebugStr() {
|
2006-01-20 20:34:06 +00:00
|
|
|
// Check to see if it is worth the effort.
|
|
|
|
if (!StringPool.empty()) {
|
|
|
|
// Start the dwarf str section.
|
|
|
|
Asm->SwitchSection(DwarfStrSection, 0);
|
|
|
|
|
|
|
|
// For each of strings in teh string pool.
|
|
|
|
for (unsigned StringID = 1, N = StringPool.size();
|
2006-01-24 00:49:18 +00:00
|
|
|
StringID <= N; ++StringID) {
|
2006-01-20 20:34:06 +00:00
|
|
|
// Emit a label for reference from debug information entries.
|
|
|
|
EmitLabel("string", StringID);
|
|
|
|
// Emit the string itself.
|
|
|
|
const std::string &String = StringPool[StringID];
|
|
|
|
EmitString(String); O << "\n";
|
|
|
|
}
|
2006-02-27 12:43:29 +00:00
|
|
|
|
|
|
|
O << "\n";
|
2006-01-20 20:34:06 +00:00
|
|
|
}
|
2006-01-17 20:41:40 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/// EmitDebugLoc - Emit visible names into a debug loc section.
|
|
|
|
///
|
|
|
|
void DwarfWriter::EmitDebugLoc() {
|
2006-01-18 16:54:26 +00:00
|
|
|
// Start the dwarf loc section.
|
|
|
|
Asm->SwitchSection(DwarfLocSection, 0);
|
2006-02-27 12:43:29 +00:00
|
|
|
|
|
|
|
O << "\n";
|
2006-01-17 20:41:40 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/// EmitDebugARanges - Emit visible names into a debug aranges section.
|
|
|
|
///
|
|
|
|
void DwarfWriter::EmitDebugARanges() {
|
2006-01-18 16:54:26 +00:00
|
|
|
// Start the dwarf aranges section.
|
|
|
|
Asm->SwitchSection(DwarfARangesSection, 0);
|
|
|
|
|
|
|
|
// FIXME - Mock up
|
2006-02-27 17:27:12 +00:00
|
|
|
#if 0
|
|
|
|
// Process each compile unit.
|
|
|
|
for (unsigned i = 0, N = CompileUnits.size(); i < N; ++i) {
|
|
|
|
CompileUnit *Unit = CompileUnits[i];
|
|
|
|
|
|
|
|
if (Unit->hasContent()) {
|
|
|
|
// Don't include size of length
|
|
|
|
EmitInt32(0x1c); EOL("Length of Address Ranges Info");
|
|
|
|
|
|
|
|
EmitInt16(DWARF_VERSION); EOL("Dwarf Version");
|
|
|
|
|
|
|
|
EmitReference("info_begin", Unit->getID());
|
|
|
|
EOL("Offset of Compilation Unit Info");
|
2006-01-18 16:54:26 +00:00
|
|
|
|
2006-02-27 17:27:12 +00:00
|
|
|
EmitInt8(AddressSize); EOL("Size of Address");
|
2006-01-18 16:54:26 +00:00
|
|
|
|
2006-02-27 17:27:12 +00:00
|
|
|
EmitInt8(0); EOL("Size of Segment Descriptor");
|
2006-01-18 16:54:26 +00:00
|
|
|
|
2006-02-27 17:27:12 +00:00
|
|
|
EmitInt16(0); EOL("Pad (1)");
|
|
|
|
EmitInt16(0); EOL("Pad (2)");
|
2006-01-18 16:54:26 +00:00
|
|
|
|
2006-02-27 17:27:12 +00:00
|
|
|
// Range 1
|
|
|
|
EmitReference("text_begin", 0); EOL("Address");
|
|
|
|
EmitDifference("text_end", 0, "text_begin", 0); EOL("Length");
|
2006-01-18 16:54:26 +00:00
|
|
|
|
2006-02-27 17:27:12 +00:00
|
|
|
EmitInt32(0); EOL("EOM (1)");
|
|
|
|
EmitInt32(0); EOL("EOM (2)");
|
|
|
|
|
|
|
|
O << "\n";
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
2006-01-17 20:41:40 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/// EmitDebugRanges - Emit visible names into a debug ranges section.
|
|
|
|
///
|
|
|
|
void DwarfWriter::EmitDebugRanges() {
|
2006-01-18 16:54:26 +00:00
|
|
|
// Start the dwarf ranges section.
|
|
|
|
Asm->SwitchSection(DwarfRangesSection, 0);
|
2006-02-27 12:43:29 +00:00
|
|
|
|
|
|
|
O << "\n";
|
2006-01-17 20:41:40 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/// EmitDebugMacInfo - Emit visible names into a debug macinfo section.
|
|
|
|
///
|
|
|
|
void DwarfWriter::EmitDebugMacInfo() {
|
2006-01-18 16:54:26 +00:00
|
|
|
// Start the dwarf macinfo section.
|
|
|
|
Asm->SwitchSection(DwarfMacInfoSection, 0);
|
2006-02-27 12:43:29 +00:00
|
|
|
|
|
|
|
O << "\n";
|
2006-01-17 20:41:40 +00:00
|
|
|
}
|
2006-01-17 17:31:53 +00:00
|
|
|
|
2006-01-24 00:49:18 +00:00
|
|
|
/// ConstructCompileUnitDIEs - Create a compile unit DIE for each source and
|
|
|
|
/// header file.
|
|
|
|
void DwarfWriter::ConstructCompileUnitDIEs() {
|
2006-02-06 15:33:21 +00:00
|
|
|
const UniqueVector<CompileUnitDesc *> CUW = DebugInfo->getCompileUnits();
|
2006-01-26 21:22:49 +00:00
|
|
|
|
|
|
|
for (unsigned i = 1, N = CUW.size(); i <= N; ++i) {
|
2006-02-27 17:27:12 +00:00
|
|
|
CompileUnit *Unit = NewCompileUnit(CUW[i], i);
|
2006-01-24 00:49:18 +00:00
|
|
|
CompileUnits.push_back(Unit);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/// ConstructGlobalDIEs - Create DIEs for each of the externally visible global
|
|
|
|
/// variables.
|
|
|
|
void DwarfWriter::ConstructGlobalDIEs(Module &M) {
|
2006-02-06 15:33:21 +00:00
|
|
|
std::vector<GlobalVariableDesc *> GlobalVariables =
|
2006-02-22 19:02:11 +00:00
|
|
|
DebugInfo->getAnchoredDescriptors<GlobalVariableDesc>(M);
|
2006-01-26 20:21:46 +00:00
|
|
|
|
|
|
|
for (unsigned i = 0, N = GlobalVariables.size(); i < N; ++i) {
|
2006-02-06 15:33:21 +00:00
|
|
|
GlobalVariableDesc *GVD = GlobalVariables[i];
|
2006-02-22 19:02:11 +00:00
|
|
|
NewGlobalVariable(GVD);
|
2006-01-24 00:49:18 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2006-02-22 19:02:11 +00:00
|
|
|
/// ConstructSubprogramDIEs - Create DIEs for each of the externally visible
|
|
|
|
/// subprograms.
|
|
|
|
void DwarfWriter::ConstructSubprogramDIEs(Module &M) {
|
|
|
|
std::vector<SubprogramDesc *> Subprograms =
|
|
|
|
DebugInfo->getAnchoredDescriptors<SubprogramDesc>(M);
|
|
|
|
|
|
|
|
for (unsigned i = 0, N = Subprograms.size(); i < N; ++i) {
|
|
|
|
SubprogramDesc *SPD = Subprograms[i];
|
|
|
|
NewSubprogram(SPD);
|
|
|
|
}
|
|
|
|
}
|
2006-01-24 00:49:18 +00:00
|
|
|
|
2006-01-17 17:31:53 +00:00
|
|
|
/// ShouldEmitDwarf - Determine if Dwarf declarations should be made.
|
2006-01-04 22:28:25 +00:00
|
|
|
///
|
|
|
|
bool DwarfWriter::ShouldEmitDwarf() {
|
|
|
|
// Check if debug info is present.
|
|
|
|
if (!DebugInfo || !DebugInfo->hasInfo()) return false;
|
|
|
|
|
|
|
|
// Make sure initial declarations are made.
|
|
|
|
if (!didInitial) {
|
|
|
|
EmitInitial();
|
|
|
|
didInitial = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Okay to emit.
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2006-01-17 17:31:53 +00:00
|
|
|
//===----------------------------------------------------------------------===//
|
2006-01-20 20:34:06 +00:00
|
|
|
// Main entry points.
|
2006-01-17 17:31:53 +00:00
|
|
|
//
|
2006-01-24 00:49:18 +00:00
|
|
|
|
|
|
|
DwarfWriter::DwarfWriter(std::ostream &OS, AsmPrinter *A)
|
|
|
|
: O(OS)
|
|
|
|
, Asm(A)
|
|
|
|
, DebugInfo(NULL)
|
|
|
|
, didInitial(false)
|
|
|
|
, CompileUnits()
|
|
|
|
, Abbreviations()
|
|
|
|
, StringPool()
|
2006-02-27 17:27:12 +00:00
|
|
|
, DescToUnitMap()
|
2006-02-22 19:02:11 +00:00
|
|
|
, DescToDieMap()
|
|
|
|
, TypeToDieMap()
|
2006-01-24 00:49:18 +00:00
|
|
|
, AddressSize(sizeof(int32_t))
|
|
|
|
, hasLEB128(false)
|
|
|
|
, hasDotLoc(false)
|
|
|
|
, hasDotFile(false)
|
|
|
|
, needsSet(false)
|
|
|
|
, DwarfAbbrevSection(".debug_abbrev")
|
|
|
|
, DwarfInfoSection(".debug_info")
|
|
|
|
, DwarfLineSection(".debug_line")
|
|
|
|
, DwarfFrameSection(".debug_frame")
|
|
|
|
, DwarfPubNamesSection(".debug_pubnames")
|
|
|
|
, DwarfPubTypesSection(".debug_pubtypes")
|
|
|
|
, DwarfStrSection(".debug_str")
|
|
|
|
, DwarfLocSection(".debug_loc")
|
|
|
|
, DwarfARangesSection(".debug_aranges")
|
|
|
|
, DwarfRangesSection(".debug_ranges")
|
|
|
|
, DwarfMacInfoSection(".debug_macinfo")
|
|
|
|
, TextSection(".text")
|
|
|
|
, DataSection(".data")
|
|
|
|
{}
|
|
|
|
DwarfWriter::~DwarfWriter() {
|
|
|
|
for (unsigned i = 0, N = CompileUnits.size(); i < N; ++i) {
|
|
|
|
delete CompileUnits[i];
|
2006-01-17 17:31:53 +00:00
|
|
|
}
|
2006-01-24 00:49:18 +00:00
|
|
|
}
|
2006-01-17 17:31:53 +00:00
|
|
|
|
|
|
|
/// BeginModule - Emit all Dwarf sections that should come prior to the content.
|
2006-01-04 22:28:25 +00:00
|
|
|
///
|
2006-01-24 00:49:18 +00:00
|
|
|
void DwarfWriter::BeginModule(Module &M) {
|
2006-01-04 22:28:25 +00:00
|
|
|
if (!ShouldEmitDwarf()) return;
|
2006-01-17 17:31:53 +00:00
|
|
|
EOL("Dwarf Begin Module");
|
2006-01-04 22:28:25 +00:00
|
|
|
}
|
|
|
|
|
2006-01-17 17:31:53 +00:00
|
|
|
/// EndModule - Emit all Dwarf sections that should come after the content.
|
2006-01-04 13:52:30 +00:00
|
|
|
///
|
2006-01-24 00:49:18 +00:00
|
|
|
void DwarfWriter::EndModule(Module &M) {
|
2006-01-04 22:28:25 +00:00
|
|
|
if (!ShouldEmitDwarf()) return;
|
2006-01-17 17:31:53 +00:00
|
|
|
EOL("Dwarf End Module");
|
|
|
|
|
|
|
|
// Standard sections final addresses.
|
2006-01-18 16:54:26 +00:00
|
|
|
Asm->SwitchSection(TextSection, 0);
|
2006-01-17 17:31:53 +00:00
|
|
|
EmitLabel("text_end", 0);
|
2006-01-18 16:54:26 +00:00
|
|
|
Asm->SwitchSection(DataSection, 0);
|
2006-01-17 17:31:53 +00:00
|
|
|
EmitLabel("data_end", 0);
|
2006-01-20 20:34:06 +00:00
|
|
|
|
2006-01-24 00:49:18 +00:00
|
|
|
// Create all the compile unit DIEs.
|
|
|
|
ConstructCompileUnitDIEs();
|
|
|
|
|
|
|
|
// Create DIEs for each of the externally visible global variables.
|
|
|
|
ConstructGlobalDIEs(M);
|
2006-01-17 17:31:53 +00:00
|
|
|
|
2006-02-22 19:02:11 +00:00
|
|
|
// Create DIEs for each of the externally visible subprograms.
|
|
|
|
ConstructSubprogramDIEs(M);
|
|
|
|
|
2006-01-17 17:31:53 +00:00
|
|
|
// Compute DIE offsets and sizes.
|
|
|
|
SizeAndOffsets();
|
|
|
|
|
|
|
|
// Emit all the DIEs into a debug info section
|
|
|
|
EmitDebugInfo();
|
|
|
|
|
|
|
|
// Corresponding abbreviations into a abbrev section.
|
|
|
|
EmitAbbreviations();
|
|
|
|
|
|
|
|
// Emit source line correspondence into a debug line section.
|
|
|
|
EmitDebugLines();
|
2006-01-17 20:41:40 +00:00
|
|
|
|
|
|
|
// Emit info into a debug frame section.
|
2006-02-27 12:43:29 +00:00
|
|
|
// EmitDebugFrame();
|
2006-01-17 20:41:40 +00:00
|
|
|
|
|
|
|
// Emit info into a debug pubnames section.
|
|
|
|
EmitDebugPubNames();
|
|
|
|
|
|
|
|
// Emit info into a debug str section.
|
|
|
|
EmitDebugStr();
|
|
|
|
|
|
|
|
// Emit info into a debug loc section.
|
|
|
|
EmitDebugLoc();
|
|
|
|
|
|
|
|
// Emit info into a debug aranges section.
|
|
|
|
EmitDebugARanges();
|
|
|
|
|
|
|
|
// Emit info into a debug ranges section.
|
|
|
|
EmitDebugRanges();
|
|
|
|
|
|
|
|
// Emit info into a debug macinfo section.
|
|
|
|
EmitDebugMacInfo();
|
2006-01-04 13:52:30 +00:00
|
|
|
}
|
|
|
|
|
2006-01-18 16:54:26 +00:00
|
|
|
/// BeginFunction - Gather pre-function debug information.
|
2006-01-04 13:52:30 +00:00
|
|
|
///
|
2006-01-24 00:49:18 +00:00
|
|
|
void DwarfWriter::BeginFunction(MachineFunction &MF) {
|
2006-01-04 22:28:25 +00:00
|
|
|
if (!ShouldEmitDwarf()) return;
|
2006-01-17 17:31:53 +00:00
|
|
|
EOL("Dwarf Begin Function");
|
2006-01-04 13:52:30 +00:00
|
|
|
}
|
|
|
|
|
2006-01-18 16:54:26 +00:00
|
|
|
/// EndFunction - Gather and emit post-function debug information.
|
2006-01-04 13:52:30 +00:00
|
|
|
///
|
2006-01-24 00:49:18 +00:00
|
|
|
void DwarfWriter::EndFunction(MachineFunction &MF) {
|
2006-01-04 22:28:25 +00:00
|
|
|
if (!ShouldEmitDwarf()) return;
|
2006-01-17 17:31:53 +00:00
|
|
|
EOL("Dwarf End Function");
|
2006-01-04 13:52:30 +00:00
|
|
|
}
|