mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-04 05:17:07 +00:00
f5955c7dac
This is a straightfoward replacement, it makes debugging a little easier. This has no functional impact. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203264 91177308-0d34-0410-b5e6-96231b3b80d8
101 lines
3.6 KiB
C++
101 lines
3.6 KiB
C++
//===- MCSectionMachO.h - MachO Machine Code Sections -----------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file declares the MCSectionMachO class.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_MC_MCSECTIONMACHO_H
|
|
#define LLVM_MC_MCSECTIONMACHO_H
|
|
|
|
#include "llvm/ADT/StringRef.h"
|
|
#include "llvm/MC/MCSection.h"
|
|
#include "llvm/Support/MachO.h"
|
|
|
|
namespace llvm {
|
|
|
|
/// MCSectionMachO - This represents a section on a Mach-O system (used by
|
|
/// Mac OS X). On a Mac system, these are also described in
|
|
/// /usr/include/mach-o/loader.h.
|
|
class MCSectionMachO : public MCSection {
|
|
char SegmentName[16]; // Not necessarily null terminated!
|
|
char SectionName[16]; // Not necessarily null terminated!
|
|
|
|
/// TypeAndAttributes - This is the SECTION_TYPE and SECTION_ATTRIBUTES
|
|
/// field of a section, drawn from the enums below.
|
|
unsigned TypeAndAttributes;
|
|
|
|
/// Reserved2 - The 'reserved2' field of a section, used to represent the
|
|
/// size of stubs, for example.
|
|
unsigned Reserved2;
|
|
|
|
MCSectionMachO(StringRef Segment, StringRef Section,
|
|
unsigned TAA, unsigned reserved2, SectionKind K);
|
|
friend class MCContext;
|
|
public:
|
|
|
|
StringRef getSegmentName() const {
|
|
// SegmentName is not necessarily null terminated!
|
|
if (SegmentName[15])
|
|
return StringRef(SegmentName, 16);
|
|
return StringRef(SegmentName);
|
|
}
|
|
StringRef getSectionName() const {
|
|
// SectionName is not necessarily null terminated!
|
|
if (SectionName[15])
|
|
return StringRef(SectionName, 16);
|
|
return StringRef(SectionName);
|
|
}
|
|
|
|
std::string getLabelBeginName() const override {
|
|
return StringRef(getSegmentName().str() + getSectionName().str() + "_begin");
|
|
}
|
|
|
|
std::string getLabelEndName() const override {
|
|
return StringRef(getSegmentName().str() + getSectionName().str() + "_end");
|
|
}
|
|
|
|
unsigned getTypeAndAttributes() const { return TypeAndAttributes; }
|
|
unsigned getStubSize() const { return Reserved2; }
|
|
|
|
MachO::SectionType getType() const {
|
|
return static_cast<MachO::SectionType>(TypeAndAttributes &
|
|
MachO::SECTION_TYPE);
|
|
}
|
|
bool hasAttribute(unsigned Value) const {
|
|
return (TypeAndAttributes & Value) != 0;
|
|
}
|
|
|
|
/// ParseSectionSpecifier - Parse the section specifier indicated by "Spec".
|
|
/// This is a string that can appear after a .section directive in a mach-o
|
|
/// flavored .s file. If successful, this fills in the specified Out
|
|
/// parameters and returns an empty string. When an invalid section
|
|
/// specifier is present, this returns a string indicating the problem.
|
|
/// If no TAA was parsed, TAA is not altered, and TAAWasSet becomes false.
|
|
static std::string ParseSectionSpecifier(StringRef Spec, // In.
|
|
StringRef &Segment, // Out.
|
|
StringRef &Section, // Out.
|
|
unsigned &TAA, // Out.
|
|
bool &TAAParsed, // Out.
|
|
unsigned &StubSize); // Out.
|
|
|
|
void PrintSwitchToSection(const MCAsmInfo &MAI, raw_ostream &OS,
|
|
const MCExpr *Subsection) const override;
|
|
bool UseCodeAlign() const override;
|
|
bool isVirtualSection() const override;
|
|
|
|
static bool classof(const MCSection *S) {
|
|
return S->getVariant() == SV_MachO;
|
|
}
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif
|