llvm-capstone/lld/ELF/ScriptParser.h
Fangrui Song 49279ca160 [ELF] Improve --export-dynamic-symbol performance by checking whether wildcard is really used
A hasWildcard pattern iterates over symVector, which can be slow when there
are many --export-dynamic-symbol. In optimistic cases, most patterns don't use
a wildcard character. hasWildcard: false can avoid a symbol table iteration.

While here, add two tests using `[` and `?`, respectively.
2020-06-17 17:12:10 -07:00

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//===- ScriptParser.h -------------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLD_ELF_SCRIPT_PARSER_H
#define LLD_ELF_SCRIPT_PARSER_H
#include "lld/Common/LLVM.h"
#include "llvm/Support/MemoryBuffer.h"
namespace lld {
namespace elf {
// Parses a linker script. Calling this function updates
// lld::elf::config and lld::elf::script.
void readLinkerScript(MemoryBufferRef mb);
// Parses a version script.
void readVersionScript(MemoryBufferRef mb);
void readDynamicList(MemoryBufferRef mb);
// Parses the defsym expression.
void readDefsym(StringRef name, MemoryBufferRef mb);
bool hasWildcard(StringRef s);
} // namespace elf
} // namespace lld
#endif