Files
clang-p2996/lld/MachO/OutputSegment.h
Jez Ng f79e7a5a48 [lld-macho] Have inputOrder default to less than INT_MAX
We make it less than INT_MAX in order not to conflict with the ordering
of zerofill sections, which must always be placed at the end of their
segment.

This is the more structural fix for the issue addressed in {D104596}.

Reviewed By: #lld-macho, thakis

Differential Revision: https://reviews.llvm.org/D104607
2021-06-20 19:49:27 -04:00

74 lines
1.9 KiB
C++

//===- OutputSegment.h ------------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLD_MACHO_OUTPUT_SEGMENT_H
#define LLD_MACHO_OUTPUT_SEGMENT_H
#include "OutputSection.h"
#include "lld/Common/LLVM.h"
#include <limits>
#include <vector>
namespace lld {
namespace macho {
namespace segment_names {
constexpr const char dataConst[] = "__DATA_CONST";
constexpr const char dataDirty[] = "__DATA_DIRTY";
constexpr const char data[] = "__DATA";
constexpr const char dwarf[] = "__DWARF";
constexpr const char import[] = "__IMPORT";
constexpr const char ld[] = "__LD"; // output only with -r
constexpr const char linkEdit[] = "__LINKEDIT";
constexpr const char llvm[] = "__LLVM";
constexpr const char pageZero[] = "__PAGEZERO";
constexpr const char textExec[] = "__TEXT_EXEC";
constexpr const char text[] = "__TEXT";
} // namespace segment_names
class OutputSection;
class InputSection;
class OutputSegment {
public:
const OutputSection *firstSection() const { return sections.front(); }
const OutputSection *lastSection() const { return sections.back(); }
void addOutputSection(OutputSection *os);
void sortOutputSections();
const std::vector<OutputSection *> &getSections() const { return sections; }
size_t numNonHiddenSections() const;
uint64_t fileOff = 0;
uint64_t fileSize = 0;
uint64_t vmSize = 0;
int inputOrder = UnspecifiedInputOrder;
StringRef name;
uint32_t maxProt = 0;
uint32_t initProt = 0;
uint8_t index;
private:
std::vector<OutputSection *> sections;
};
extern std::vector<OutputSegment *> outputSegments;
void sortOutputSegments();
OutputSegment *getOrCreateOutputSegment(StringRef name);
} // namespace macho
} // namespace lld
#endif