llvm-6502/lib/Target/ARM/ARMTargetObjectFile.cpp
Anton Korobeynikov 4a99f59aef Properly emit ctors / dtors with priorities into desired sections
and let linker handle the rest.

This finally fixes PR5329



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148990 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-25 22:24:19 +00:00

80 lines
2.9 KiB
C++

//===-- llvm/Target/ARMTargetObjectFile.cpp - ARM Object Info Impl --------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "ARMTargetObjectFile.h"
#include "ARMSubtarget.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCSectionELF.h"
#include "llvm/Support/Dwarf.h"
#include "llvm/Support/ELF.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/ADT/StringExtras.h"
using namespace llvm;
using namespace dwarf;
//===----------------------------------------------------------------------===//
// ELF Target
//===----------------------------------------------------------------------===//
void ARMElfTargetObjectFile::Initialize(MCContext &Ctx,
const TargetMachine &TM) {
TargetLoweringObjectFileELF::Initialize(Ctx, TM);
isAAPCS_ABI = TM.getSubtarget<ARMSubtarget>().isAAPCS_ABI();
if (isAAPCS_ABI) {
StaticCtorSection =
getContext().getELFSection(".init_array", ELF::SHT_INIT_ARRAY,
ELF::SHF_WRITE |
ELF::SHF_ALLOC,
SectionKind::getDataRel());
StaticDtorSection =
getContext().getELFSection(".fini_array", ELF::SHT_FINI_ARRAY,
ELF::SHF_WRITE |
ELF::SHF_ALLOC,
SectionKind::getDataRel());
LSDASection = NULL;
}
AttributesSection =
getContext().getELFSection(".ARM.attributes",
ELF::SHT_ARM_ATTRIBUTES,
0,
SectionKind::getMetadata());
}
const MCSection *
ARMElfTargetObjectFile::getStaticCtorSection(unsigned Priority) const {
if (!isAAPCS_ABI)
return TargetLoweringObjectFileELF::getStaticCtorSection(Priority);
if (Priority == 65535)
return StaticCtorSection;
// Emit ctors in priority order.
std::string Name = std::string(".init_array.") + utostr(Priority);
return getContext().getELFSection(Name, ELF::SHT_INIT_ARRAY,
ELF::SHF_ALLOC | ELF::SHF_WRITE,
SectionKind::getDataRel());
}
const MCSection *
ARMElfTargetObjectFile::getStaticDtorSection(unsigned Priority) const {
if (!isAAPCS_ABI)
return TargetLoweringObjectFileELF::getStaticDtorSection(Priority);
if (Priority == 65535)
return StaticDtorSection;
// Emit dtors in priority order.
std::string Name = std::string(".fini_array.") + utostr(Priority);
return getContext().getELFSection(Name, ELF::SHT_FINI_ARRAY,
ELF::SHF_ALLOC | ELF::SHF_WRITE,
SectionKind::getDataRel());
}