forked from OSchip/llvm-project
66 lines
2.0 KiB
C++
66 lines
2.0 KiB
C++
//===- Symbols.cpp --------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "Symbols.h"
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#include "InputFiles.h"
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#include "SyntheticSections.h"
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using namespace llvm;
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using namespace lld;
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using namespace lld::macho;
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// Returns a symbol for an error message.
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static std::string demangle(StringRef symName) {
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if (config->demangle)
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return demangleItanium(symName);
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return std::string(symName);
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}
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std::string lld::toString(const Symbol &sym) { return demangle(sym.getName()); }
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std::string lld::toMachOString(const object::Archive::Symbol &b) {
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return demangle(b.getName());
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}
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uint64_t Symbol::getStubVA() const { return in.stubs->getVA(stubsIndex); }
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uint64_t Symbol::getGotVA() const { return in.got->getVA(gotIndex); }
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uint64_t Symbol::getTlvVA() const { return in.tlvPointers->getVA(gotIndex); }
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uint64_t Defined::getVA() const {
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if (isAbsolute())
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return value;
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if (!isec->isFinal) {
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// A target arch that does not use thunks ought never ask for
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// the address of a function that has not yet been finalized.
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assert(target->usesThunks());
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// MergedOutputSection::finalize() can seek the address of a
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// function before its address is assigned. The thunking algorithm
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// knows that unfinalized functions will be out of range, so it is
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// expedient to return a contrived out-of-range address.
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return TargetInfo::outOfRangeVA;
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}
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return isec->getVA() + value;
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}
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uint64_t Defined::getFileOffset() const {
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if (isAbsolute()) {
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error("absolute symbol " + toString(*this) +
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" does not have a file offset");
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return 0;
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}
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return isec->getFileOffset() + value;
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}
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uint64_t DylibSymbol::getVA() const {
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return isInStubs() ? getStubVA() : Symbol::getVA();
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}
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void LazySymbol::fetchArchiveMember() { getFile()->fetch(sym); }
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