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73 lines
2.6 KiB
73 lines
2.6 KiB
4 months ago
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//===- ARMEmulation.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 "ARM.h"
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#include "mcld/LinkerConfig.h"
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#include "mcld/LinkerScript.h"
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#include "mcld/Target/ELFEmulation.h"
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#include "mcld/Support/TargetRegistry.h"
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namespace mcld {
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static bool MCLDEmulateARMELF(LinkerScript& pScript, 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(32);
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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.exidx*", ".ARM.exidx");
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pScript.sectionMap().insert(".ARM.extab*", ".ARM.extab");
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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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// emulateARMLD - the help function to emulate ARM ld
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//===----------------------------------------------------------------------===//
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bool emulateARMLD(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 MCLDEmulateARMELF(pScript, pConfig);
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}
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} // namespace mcld
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//===----------------------------------------------------------------------===//
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// ARMEmulation
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//===----------------------------------------------------------------------===//
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extern "C" void MCLDInitializeARMEmulation() {
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// Register the emulation
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mcld::TargetRegistry::RegisterEmulation(mcld::TheARMTarget,
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mcld::emulateARMLD);
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mcld::TargetRegistry::RegisterEmulation(mcld::TheThumbTarget,
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mcld::emulateARMLD);
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}
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