6d176f88ea
We had such class there because of InputGraph abstraction. Previously, no one except InputGraph itself has complete picture of input file list. In order to create a set of all defined symbols, we had to use some indirections there to workaround InputGraph. It can now be rewritten as simple code. No change in functionality. llvm-svn: 226319
49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
//===- lib/ReaderWriter/PECOFF/LinkerGeneratedSymbolFile.cpp --------------===//
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//
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// The LLVM Linker
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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 "LinkerGeneratedSymbolFile.h"
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namespace lld {
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namespace pecoff {
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// Find decorated symbol, namely /sym@[0-9]+/ or /\?sym@@.+/.
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bool findDecoratedSymbol(PECOFFLinkingContext *ctx,
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std::string sym, std::string &res) {
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const std::set<std::string> &defined = ctx->definedSymbols();
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// Search for /sym@[0-9]+/
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{
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std::string s = sym + '@';
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auto it = defined.lower_bound(s);
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for (auto e = defined.end(); it != e; ++it) {
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if (!StringRef(*it).startswith(s))
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break;
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if (it->size() == s.size())
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continue;
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StringRef suffix = StringRef(*it).substr(s.size());
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if (suffix.find_first_not_of("0123456789") != StringRef::npos)
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continue;
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res = *it;
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return true;
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}
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}
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// Search for /\?sym@@.+/
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{
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std::string s = "?" + ctx->undecorateSymbol(sym).str() + "@@";
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auto it = defined.lower_bound(s);
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if (it != defined.end() && StringRef(*it).startswith(s)) {
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res = *it;
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return true;
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}
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}
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return false;
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}
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} // namespace pecoff
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} // namespace lld
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