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70 lines
2.4 KiB
70 lines
2.4 KiB
//===- AArch64Emulation.cpp -----------------------------------------------===//
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//
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// The MCLinker Project
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "AArch64.h"
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#include "mcld/LinkerConfig.h"
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#include "mcld/LinkerScript.h"
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#include "mcld/Support/TargetRegistry.h"
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#include "mcld/Target/ELFEmulation.h"
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namespace mcld {
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static bool MCLDEmulateAArch64ELF(LinkerScript& pScript,
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LinkerConfig& pConfig) {
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if (!MCLDEmulateELF(pScript, pConfig))
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return false;
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// set up bitclass and endian
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pConfig.targets().setEndian(TargetOptions::Little);
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pConfig.targets().setBitClass(64);
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// set up target-dependent constraints of attributes
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pConfig.attribute().constraint().enableWholeArchive();
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pConfig.attribute().constraint().enableAsNeeded();
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pConfig.attribute().constraint().setSharedSystem();
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// set up the predefined attributes
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pConfig.attribute().predefined().unsetWholeArchive();
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pConfig.attribute().predefined().unsetAsNeeded();
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pConfig.attribute().predefined().setDynamic();
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// set up section map
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if (pConfig.options().getScriptList().empty() &&
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pConfig.codeGenType() != LinkerConfig::Object) {
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pScript.sectionMap().insert(".ARM.attributes*", ".ARM.attributes");
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}
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return true;
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}
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//===----------------------------------------------------------------------===//
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// emulateAArch64LD - the help function to emulate AArch64 ld
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//===----------------------------------------------------------------------===//
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bool emulateAArch64LD(LinkerScript& pScript, LinkerConfig& pConfig) {
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if (pConfig.targets().triple().isOSDarwin()) {
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assert(0 && "MachO linker has not supported yet");
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return false;
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}
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if (pConfig.targets().triple().isOSWindows()) {
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assert(0 && "COFF linker has not supported yet");
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return false;
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}
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return MCLDEmulateAArch64ELF(pScript, pConfig);
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}
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} // namespace mcld
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//===----------------------------------------------------------------------===//
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// AArch64Emulation
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//===----------------------------------------------------------------------===//
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extern "C" void MCLDInitializeAArch64Emulation() {
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// Register the emulation
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mcld::TargetRegistry::RegisterEmulation(mcld::TheAArch64Target,
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mcld::emulateAArch64LD);
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}
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