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author | Dimitry Andric <dim@FreeBSD.org> | 2017-01-02 19:17:04 +0000 |
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committer | Dimitry Andric <dim@FreeBSD.org> | 2017-01-02 19:17:04 +0000 |
commit | b915e9e0fc85ba6f398b3fab0db6a81a8913af94 (patch) | |
tree | 98b8f811c7aff2547cab8642daf372d6c59502fb /tools/llvm-strings | |
parent | 6421cca32f69ac849537a3cff78c352195e99f1b (diff) | |
download | src-b915e9e0fc85ba6f398b3fab0db6a81a8913af94.tar.gz src-b915e9e0fc85ba6f398b3fab0db6a81a8913af94.zip |
Vendor import of llvm trunk r290819:vendor/llvm/llvm-trunk-r290819
Notes
Notes:
svn path=/vendor/llvm/dist/; revision=311116
svn path=/vendor/llvm/llvm-trunk-r290819/; revision=311117; tag=vendor/llvm/llvm-trunk-r290819
Diffstat (limited to 'tools/llvm-strings')
-rw-r--r-- | tools/llvm-strings/CMakeLists.txt | 10 | ||||
-rw-r--r-- | tools/llvm-strings/LLVMBuild.txt | 22 | ||||
-rw-r--r-- | tools/llvm-strings/llvm-strings.cpp | 90 |
3 files changed, 122 insertions, 0 deletions
diff --git a/tools/llvm-strings/CMakeLists.txt b/tools/llvm-strings/CMakeLists.txt new file mode 100644 index 000000000000..9339892a4997 --- /dev/null +++ b/tools/llvm-strings/CMakeLists.txt @@ -0,0 +1,10 @@ +set(LLVM_LINK_COMPONENTS + Core + Object + Support + ) + +add_llvm_tool(llvm-strings + llvm-strings.cpp + ) + diff --git a/tools/llvm-strings/LLVMBuild.txt b/tools/llvm-strings/LLVMBuild.txt new file mode 100644 index 000000000000..9cd41d0eebf5 --- /dev/null +++ b/tools/llvm-strings/LLVMBuild.txt @@ -0,0 +1,22 @@ +;===- ./tools/llvm-strings/LLVMBuild.txt -----------------------*- Conf -*--===; +; +; The LLVM Compiler Infrastructure +; +; This file is distributed under the University of Illinois Open Source +; License. See LICENSE.TXT for details. +; +;===------------------------------------------------------------------------===; +; +; This is an LLVMBuild description file for the components in this subdirectory. +; +; For more information on the LLVMBuild system, please see: +; +; http://llvm.org/docs/LLVMBuild.html +; +;===------------------------------------------------------------------------===; + +[component_0] +type = Tool +name = llvm-strings +parent = Tools +required_libraries = Archive Object diff --git a/tools/llvm-strings/llvm-strings.cpp b/tools/llvm-strings/llvm-strings.cpp new file mode 100644 index 000000000000..e750995331e3 --- /dev/null +++ b/tools/llvm-strings/llvm-strings.cpp @@ -0,0 +1,90 @@ +//===-- llvm-strings.cpp - Printable String dumping utility ---------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This program is a utility that works like binutils "strings", that is, it +// prints out printable strings in a binary, objdump, or archive file. +// +//===----------------------------------------------------------------------===// + +#include "llvm/Object/Binary.h" +#include "llvm/Support/CommandLine.h" +#include "llvm/Support/Error.h" +#include "llvm/Support/MemoryBuffer.h" +#include "llvm/Support/PrettyStackTrace.h" +#include "llvm/Support/Program.h" +#include "llvm/Support/Signals.h" +#include <cctype> +#include <string> + +using namespace llvm; +using namespace llvm::object; + +static cl::list<std::string> InputFileNames(cl::Positional, + cl::desc("<input object files>"), + cl::ZeroOrMore); + +static cl::opt<bool> + PrintFileName("print-file-name", + cl::desc("Print the name of the file before each string")); +static cl::alias PrintFileNameShort("f", cl::desc(""), + cl::aliasopt(PrintFileName)); + +static cl::opt<int> + MinLength("bytes", cl::desc("Print sequences of the specified length"), + cl::init(4)); +static cl::alias MinLengthShort("n", cl::desc(""), cl::aliasopt(MinLength)); + +static void strings(raw_ostream &OS, StringRef FileName, StringRef Contents) { + auto print = [&OS, FileName](StringRef L) { + if (L.size() < static_cast<size_t>(MinLength)) + return; + if (PrintFileName) + OS << FileName << ": "; + OS << L << '\n'; + }; + + const char *P = nullptr, *E = nullptr, *S = nullptr; + for (P = Contents.begin(), E = Contents.end(); P < E; ++P) { + if (std::isgraph(*P) || std::isblank(*P)) { + if (S == nullptr) + S = P; + } else if (S) { + print(StringRef(S, P - S)); + S = nullptr; + } + } + if (S) + print(StringRef(S, E - S)); +} + +int main(int argc, char **argv) { + sys::PrintStackTraceOnErrorSignal(argv[0]); + PrettyStackTraceProgram X(argc, argv); + + cl::ParseCommandLineOptions(argc, argv, "llvm string dumper\n"); + if (MinLength == 0) { + errs() << "invalid minimum string length 0\n"; + return EXIT_FAILURE; + } + + if (InputFileNames.empty()) + InputFileNames.push_back("-"); + + for (const auto &File : InputFileNames) { + ErrorOr<std::unique_ptr<MemoryBuffer>> Buffer = + MemoryBuffer::getFileOrSTDIN(File); + if (std::error_code EC = Buffer.getError()) + errs() << File << ": " << EC.message() << '\n'; + else + strings(llvm::outs(), File == "-" ? "{standard input}" : File, + Buffer.get()->getMemBufferRef().getBuffer()); + } + + return EXIT_SUCCESS; +} |