| //===-- XCoreTargetObjectFile.cpp - XCore object files --------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "XCoreTargetObjectFile.h" |
| #include "XCoreSubtarget.h" |
| #include "MCSectionXCore.h" |
| #include "llvm/Target/TargetMachine.h" |
| using namespace llvm; |
| |
| |
| void XCoreTargetObjectFile::Initialize(MCContext &Ctx, const TargetMachine &TM){ |
| TargetLoweringObjectFileELF::Initialize(Ctx, TM); |
| |
| DataSection = |
| MCSectionXCore::Create(".dp.data", MCSectionELF::SHT_PROGBITS, |
| MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_WRITE | |
| MCSectionXCore::SHF_DP_SECTION, |
| SectionKind::getDataRel(), false, getContext()); |
| BSSSection = |
| MCSectionXCore::Create(".dp.bss", MCSectionELF::SHT_NOBITS, |
| MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_WRITE | |
| MCSectionXCore::SHF_DP_SECTION, |
| SectionKind::getBSS(), false, getContext()); |
| |
| MergeableConst4Section = |
| MCSectionXCore::Create(".cp.rodata.cst4", MCSectionELF::SHT_PROGBITS, |
| MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_MERGE | |
| MCSectionXCore::SHF_CP_SECTION, |
| SectionKind::getMergeableConst4(), false, |
| getContext()); |
| MergeableConst8Section = |
| MCSectionXCore::Create(".cp.rodata.cst8", MCSectionELF::SHT_PROGBITS, |
| MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_MERGE | |
| MCSectionXCore::SHF_CP_SECTION, |
| SectionKind::getMergeableConst8(), false, |
| getContext()); |
| MergeableConst16Section = |
| MCSectionXCore::Create(".cp.rodata.cst16", MCSectionELF::SHT_PROGBITS, |
| MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_MERGE | |
| MCSectionXCore::SHF_CP_SECTION, |
| SectionKind::getMergeableConst16(), false, |
| getContext()); |
| |
| // TLS globals are lowered in the backend to arrays indexed by the current |
| // thread id. After lowering they require no special handling by the linker |
| // and can be placed in the standard data / bss sections. |
| TLSDataSection = DataSection; |
| TLSBSSSection = BSSSection; |
| |
| if (TM.getSubtarget<XCoreSubtarget>().isXS1A()) |
| ReadOnlySection = // FIXME: Why is this a writable section for XS1A? |
| MCSectionXCore::Create(".dp.rodata", MCSectionELF::SHT_PROGBITS, |
| MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_WRITE | |
| MCSectionXCore::SHF_DP_SECTION, |
| SectionKind::getDataRel(), false, getContext()); |
| else |
| ReadOnlySection = |
| MCSectionXCore::Create(".cp.rodata", MCSectionELF::SHT_PROGBITS, |
| MCSectionELF::SHF_ALLOC | |
| MCSectionXCore::SHF_CP_SECTION, |
| SectionKind::getReadOnlyWithRel(), false, |
| getContext()); |
| |
| // Dynamic linking is not supported. Data with relocations is placed in the |
| // same section as data without relocations. |
| DataRelSection = DataRelLocalSection = DataSection; |
| DataRelROSection = DataRelROLocalSection = ReadOnlySection; |
| } |