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b4ba74c4c4
Until we have handling for ignoring unloaded sections, simplify the logic to the point of triviality. This fixes the scanning of archives, particularly when embedded in archives. llvm-svn: 286727
68 lines
2.1 KiB
C++
68 lines
2.1 KiB
C++
//===-- llvm-strings.cpp - Printable String dumping utility ---------------===//
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//
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// The LLVM Compiler Infrastructure
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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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//
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// This program is a utility that works like binutils "strings", that is, it
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// prints out printable strings in a binary, objdump, or archive file.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Object/Binary.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/Error.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/PrettyStackTrace.h"
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#include "llvm/Support/Program.h"
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#include "llvm/Support/Signals.h"
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#include <cctype>
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#include <string>
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using namespace llvm;
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using namespace llvm::object;
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static cl::list<std::string> InputFileNames(cl::Positional,
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cl::desc("<input object files>"),
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cl::ZeroOrMore);
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static void strings(raw_ostream &OS, StringRef Contents) {
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const char *P = nullptr, *E = nullptr, *S = nullptr;
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for (P = Contents.begin(), E = Contents.end(); P < E; ++P) {
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if (std::isgraph(*P) || std::isblank(*P)) {
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if (S == nullptr)
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S = P;
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} else if (S) {
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if (P - S > 3)
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OS << StringRef(S, P - S) << '\n';
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S = nullptr;
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}
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}
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if (S && E - S > 3)
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OS << StringRef(S, E - S) << '\n';
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}
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int main(int argc, char **argv) {
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sys::PrintStackTraceOnErrorSignal(argv[0]);
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PrettyStackTraceProgram X(argc, argv);
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cl::ParseCommandLineOptions(argc, argv, "llvm string dumper\n");
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if (InputFileNames.empty())
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InputFileNames.push_back("-");
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for (const auto &File : InputFileNames) {
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ErrorOr<std::unique_ptr<MemoryBuffer>> Buffer =
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MemoryBuffer::getFileOrSTDIN(File);
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if (std::error_code EC = Buffer.getError())
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errs() << File << ": " << EC.message() << '\n';
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else
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strings(llvm::outs(), Buffer.get()->getMemBufferRef().getBuffer());
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}
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return EXIT_SUCCESS;
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}
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