mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-27 15:29:51 +00:00
that breaks on big-endian machines. I have to clean up the 32/64 bit confusion in libDebugInfo some day. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143812 91177308-0d34-0410-b5e6-96231b3b80d8
136 lines
4.9 KiB
C++
136 lines
4.9 KiB
C++
//===-- DWARFDebugInfoEntry.h -----------------------------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_DEBUGINFO_DWARFDEBUGINFOENTRY_H
|
|
#define LLVM_DEBUGINFO_DWARFDEBUGINFOENTRY_H
|
|
|
|
#include "DWARFAbbreviationDeclaration.h"
|
|
#include "llvm/Support/DataTypes.h"
|
|
|
|
namespace llvm {
|
|
|
|
class DWARFDebugAranges;
|
|
class DWARFCompileUnit;
|
|
class DWARFContext;
|
|
class DWARFFormValue;
|
|
|
|
/// DWARFDebugInfoEntryMinimal - A DIE with only the minimum required data.
|
|
class DWARFDebugInfoEntryMinimal {
|
|
/// Offset within the .debug_info of the start of this entry.
|
|
uint32_t Offset;
|
|
|
|
/// How many to subtract from "this" to get the parent.
|
|
/// If zero this die has no parent.
|
|
uint32_t ParentIdx;
|
|
|
|
/// How many to add to "this" to get the sibling.
|
|
uint32_t SiblingIdx;
|
|
|
|
const DWARFAbbreviationDeclaration *AbbrevDecl;
|
|
public:
|
|
DWARFDebugInfoEntryMinimal()
|
|
: Offset(0), ParentIdx(0), SiblingIdx(0), AbbrevDecl(0) {}
|
|
|
|
void dump(raw_ostream &OS, const DWARFCompileUnit *cu,
|
|
unsigned recurseDepth, unsigned indent = 0) const;
|
|
void dumpAttribute(raw_ostream &OS, const DWARFCompileUnit *cu,
|
|
uint32_t *offset_ptr, uint16_t attr, uint16_t form,
|
|
unsigned indent = 0) const;
|
|
|
|
bool extractFast(const DWARFCompileUnit *cu, const uint8_t *fixed_form_sizes,
|
|
uint32_t *offset_ptr);
|
|
|
|
/// Extract a debug info entry for a given compile unit from the
|
|
/// .debug_info and .debug_abbrev data starting at the given offset.
|
|
bool extract(const DWARFCompileUnit *cu, uint32_t *offset_ptr);
|
|
|
|
uint32_t getTag() const { return AbbrevDecl ? AbbrevDecl->getTag() : 0; }
|
|
bool isNULL() const { return AbbrevDecl == 0; }
|
|
uint32_t getOffset() const { return Offset; }
|
|
uint32_t getNumAttributes() const {
|
|
return !isNULL() ? AbbrevDecl->getNumAttributes() : 0;
|
|
}
|
|
bool hasChildren() const { return !isNULL() && AbbrevDecl->hasChildren(); }
|
|
|
|
// We know we are kept in a vector of contiguous entries, so we know
|
|
// our parent will be some index behind "this".
|
|
DWARFDebugInfoEntryMinimal *getParent() {
|
|
return ParentIdx > 0 ? this - ParentIdx : 0;
|
|
}
|
|
const DWARFDebugInfoEntryMinimal *getParent() const {
|
|
return ParentIdx > 0 ? this - ParentIdx : 0;
|
|
}
|
|
// We know we are kept in a vector of contiguous entries, so we know
|
|
// our sibling will be some index after "this".
|
|
DWARFDebugInfoEntryMinimal *getSibling() {
|
|
return SiblingIdx > 0 ? this + SiblingIdx : 0;
|
|
}
|
|
const DWARFDebugInfoEntryMinimal *getSibling() const {
|
|
return SiblingIdx > 0 ? this + SiblingIdx : 0;
|
|
}
|
|
// We know we are kept in a vector of contiguous entries, so we know
|
|
// we don't need to store our child pointer, if we have a child it will
|
|
// be the next entry in the list...
|
|
DWARFDebugInfoEntryMinimal *getFirstChild() {
|
|
return hasChildren() ? this + 1 : 0;
|
|
}
|
|
const DWARFDebugInfoEntryMinimal *getFirstChild() const {
|
|
return hasChildren() ? this + 1 : 0;
|
|
}
|
|
|
|
void setParent(DWARFDebugInfoEntryMinimal *parent) {
|
|
if (parent) {
|
|
// We know we are kept in a vector of contiguous entries, so we know
|
|
// our parent will be some index behind "this".
|
|
ParentIdx = this - parent;
|
|
} else
|
|
ParentIdx = 0;
|
|
}
|
|
void setSibling(DWARFDebugInfoEntryMinimal *sibling) {
|
|
if (sibling) {
|
|
// We know we are kept in a vector of contiguous entries, so we know
|
|
// our sibling will be some index after "this".
|
|
SiblingIdx = sibling - this;
|
|
sibling->setParent(getParent());
|
|
} else
|
|
SiblingIdx = 0;
|
|
}
|
|
|
|
const DWARFAbbreviationDeclaration *getAbbreviationDeclarationPtr() const {
|
|
return AbbrevDecl;
|
|
}
|
|
|
|
uint32_t getAttributeValue(const DWARFCompileUnit *cu,
|
|
const uint16_t attr, DWARFFormValue &formValue,
|
|
uint32_t *end_attr_offset_ptr = 0) const;
|
|
|
|
const char* getAttributeValueAsString(const DWARFCompileUnit* cu,
|
|
const uint16_t attr,
|
|
const char *fail_value) const;
|
|
|
|
uint64_t getAttributeValueAsUnsigned(const DWARFCompileUnit *cu,
|
|
const uint16_t attr,
|
|
uint64_t fail_value) const;
|
|
|
|
uint64_t getAttributeValueAsReference(const DWARFCompileUnit *cu,
|
|
const uint16_t attr,
|
|
uint64_t fail_value) const;
|
|
|
|
int64_t getAttributeValueAsSigned(const DWARFCompileUnit* cu,
|
|
const uint16_t attr,
|
|
int64_t fail_value) const;
|
|
|
|
void buildAddressRangeTable(const DWARFCompileUnit *cu,
|
|
DWARFDebugAranges *debug_aranges) const;
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|