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//===- ARMEmulation.cpp ---------------------------------------------------===//
//
// The MCLinker Project
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "ARM.h"
#include "mcld/LinkerConfig.h"
#include "mcld/LinkerScript.h"
#include "mcld/Target/ELFEmulation.h"
#include "mcld/Support/TargetRegistry.h"
namespace mcld {
static bool MCLDEmulateARMELF(LinkerScript& pScript, LinkerConfig& pConfig) {
if (!MCLDEmulateELF(pScript, pConfig))
return false;
// set up bitclass and endian
pConfig.targets().setEndian(TargetOptions::Little);
pConfig.targets().setBitClass(32);
// set up target-dependent constraints of attributes
pConfig.attribute().constraint().enableWholeArchive();
pConfig.attribute().constraint().enableAsNeeded();
pConfig.attribute().constraint().setSharedSystem();
// set up the predefined attributes
pConfig.attribute().predefined().unsetWholeArchive();
pConfig.attribute().predefined().unsetAsNeeded();
pConfig.attribute().predefined().setDynamic();
// set up section map
if (pConfig.options().getScriptList().empty() &&
pConfig.codeGenType() != LinkerConfig::Object) {
pScript.sectionMap().insert(".ARM.exidx*", ".ARM.exidx");
pScript.sectionMap().insert(".ARM.extab*", ".ARM.extab");
pScript.sectionMap().insert(".ARM.attributes*", ".ARM.attributes");
}
return true;
}
//===----------------------------------------------------------------------===//
// emulateARMLD - the help function to emulate ARM ld
//===----------------------------------------------------------------------===//
bool emulateARMLD(LinkerScript& pScript, LinkerConfig& pConfig) {
if (pConfig.targets().triple().isOSDarwin()) {
assert(0 && "MachO linker has not supported yet");
return false;
}
if (pConfig.targets().triple().isOSWindows()) {
assert(0 && "COFF linker has not supported yet");
return false;
}
return MCLDEmulateARMELF(pScript, pConfig);
}
} // namespace mcld
//===----------------------------------------------------------------------===//
// ARMEmulation
//===----------------------------------------------------------------------===//
extern "C" void MCLDInitializeARMEmulation() {
// Register the emulation
mcld::TargetRegistry::RegisterEmulation(mcld::TheARMTarget,
mcld::emulateARMLD);
mcld::TargetRegistry::RegisterEmulation(mcld::TheThumbTarget,
mcld::emulateARMLD);
}