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authorpatrick <patrick@openbsd.org>2020-08-03 15:06:44 +0000
committerpatrick <patrick@openbsd.org>2020-08-03 15:06:44 +0000
commitb64793999546ed8adebaeebd9d8345d18db8927d (patch)
tree4357c27b561d73b0e089727c6ed659f2ceff5f47 /gnu/llvm/tools/clang/examples/clang-interpreter/main.cpp
parentAdd support for UTF-8 DISPLAY-HINTs with octet length. For now only (diff)
downloadwireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.tar.xz
wireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.zip
Remove LLVM 8.0.1 files.
Diffstat (limited to 'gnu/llvm/tools/clang/examples/clang-interpreter/main.cpp')
-rw-r--r--gnu/llvm/tools/clang/examples/clang-interpreter/main.cpp222
1 files changed, 0 insertions, 222 deletions
diff --git a/gnu/llvm/tools/clang/examples/clang-interpreter/main.cpp b/gnu/llvm/tools/clang/examples/clang-interpreter/main.cpp
deleted file mode 100644
index 1c83b1d3e75..00000000000
--- a/gnu/llvm/tools/clang/examples/clang-interpreter/main.cpp
+++ /dev/null
@@ -1,222 +0,0 @@
-//===-- examples/clang-interpreter/main.cpp - Clang C Interpreter Example -===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "clang/Basic/DiagnosticOptions.h"
-#include "clang/CodeGen/CodeGenAction.h"
-#include "clang/Driver/Compilation.h"
-#include "clang/Driver/Driver.h"
-#include "clang/Driver/Tool.h"
-#include "clang/Frontend/CompilerInstance.h"
-#include "clang/Frontend/CompilerInvocation.h"
-#include "clang/Frontend/FrontendDiagnostic.h"
-#include "clang/Frontend/TextDiagnosticPrinter.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ExecutionEngine/ExecutionEngine.h"
-#include "llvm/ExecutionEngine/Orc/CompileUtils.h"
-#include "llvm/ExecutionEngine/Orc/IRCompileLayer.h"
-#include "llvm/ExecutionEngine/Orc/RTDyldObjectLinkingLayer.h"
-#include "llvm/ExecutionEngine/SectionMemoryManager.h"
-#include "llvm/IR/DataLayout.h"
-#include "llvm/IR/Mangler.h"
-#include "llvm/IR/Module.h"
-#include "llvm/Support/FileSystem.h"
-#include "llvm/Support/Host.h"
-#include "llvm/Support/ManagedStatic.h"
-#include "llvm/Support/Path.h"
-#include "llvm/Support/TargetSelect.h"
-#include "llvm/Support/raw_ostream.h"
-#include "llvm/Target/TargetMachine.h"
-
-using namespace clang;
-using namespace clang::driver;
-
-// This function isn't referenced outside its translation unit, but it
-// can't use the "static" keyword because its address is used for
-// GetMainExecutable (since some platforms don't support taking the
-// address of main, and some platforms can't implement GetMainExecutable
-// without being given the address of a function in the main executable).
-std::string GetExecutablePath(const char *Argv0, void *MainAddr) {
- return llvm::sys::fs::getMainExecutable(Argv0, MainAddr);
-}
-
-namespace llvm {
-namespace orc {
-
-class SimpleJIT {
-private:
- ExecutionSession ES;
- std::shared_ptr<SymbolResolver> Resolver;
- std::unique_ptr<TargetMachine> TM;
- const DataLayout DL;
- LegacyRTDyldObjectLinkingLayer ObjectLayer;
- LegacyIRCompileLayer<decltype(ObjectLayer), SimpleCompiler> CompileLayer;
-
-public:
- SimpleJIT()
- : Resolver(createLegacyLookupResolver(
- ES,
- [this](const std::string &Name) -> JITSymbol {
- if (auto Sym = CompileLayer.findSymbol(Name, false))
- return Sym;
- else if (auto Err = Sym.takeError())
- return std::move(Err);
- if (auto SymAddr =
- RTDyldMemoryManager::getSymbolAddressInProcess(Name))
- return JITSymbol(SymAddr, JITSymbolFlags::Exported);
- return nullptr;
- },
- [](Error Err) { cantFail(std::move(Err), "lookupFlags failed"); })),
- TM(EngineBuilder().selectTarget()), DL(TM->createDataLayout()),
- ObjectLayer(ES,
- [this](VModuleKey) {
- return LegacyRTDyldObjectLinkingLayer::Resources{
- std::make_shared<SectionMemoryManager>(), Resolver};
- }),
- CompileLayer(ObjectLayer, SimpleCompiler(*TM)) {
- llvm::sys::DynamicLibrary::LoadLibraryPermanently(nullptr);
- }
-
- const TargetMachine &getTargetMachine() const { return *TM; }
-
- VModuleKey addModule(std::unique_ptr<Module> M) {
- // Add the module to the JIT with a new VModuleKey.
- auto K = ES.allocateVModule();
- cantFail(CompileLayer.addModule(K, std::move(M)));
- return K;
- }
-
- JITSymbol findSymbol(const StringRef &Name) {
- std::string MangledName;
- raw_string_ostream MangledNameStream(MangledName);
- Mangler::getNameWithPrefix(MangledNameStream, Name, DL);
- return CompileLayer.findSymbol(MangledNameStream.str(), true);
- }
-
- JITTargetAddress getSymbolAddress(const StringRef &Name) {
- return cantFail(findSymbol(Name).getAddress());
- }
-
- void removeModule(VModuleKey K) {
- cantFail(CompileLayer.removeModule(K));
- }
-};
-
-} // end namespace orc
-} // end namespace llvm
-
-int main(int argc, const char **argv) {
- // This just needs to be some symbol in the binary; C++ doesn't
- // allow taking the address of ::main however.
- void *MainAddr = (void*) (intptr_t) GetExecutablePath;
- std::string Path = GetExecutablePath(argv[0], MainAddr);
- IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
- TextDiagnosticPrinter *DiagClient =
- new TextDiagnosticPrinter(llvm::errs(), &*DiagOpts);
-
- IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
- DiagnosticsEngine Diags(DiagID, &*DiagOpts, DiagClient);
-
- const std::string TripleStr = llvm::sys::getProcessTriple();
- llvm::Triple T(TripleStr);
-
- // Use ELF on Windows-32 and MingW for now.
-#ifndef CLANG_INTERPRETER_COFF_FORMAT
- if (T.isOSBinFormatCOFF())
- T.setObjectFormat(llvm::Triple::ELF);
-#endif
-
- Driver TheDriver(Path, T.str(), Diags);
- TheDriver.setTitle("clang interpreter");
- TheDriver.setCheckInputsExist(false);
-
- // FIXME: This is a hack to try to force the driver to do something we can
- // recognize. We need to extend the driver library to support this use model
- // (basically, exactly one input, and the operation mode is hard wired).
- SmallVector<const char *, 16> Args(argv, argv + argc);
- Args.push_back("-fsyntax-only");
- std::unique_ptr<Compilation> C(TheDriver.BuildCompilation(Args));
- if (!C)
- return 0;
-
- // FIXME: This is copied from ASTUnit.cpp; simplify and eliminate.
-
- // We expect to get back exactly one command job, if we didn't something
- // failed. Extract that job from the compilation.
- const driver::JobList &Jobs = C->getJobs();
- if (Jobs.size() != 1 || !isa<driver::Command>(*Jobs.begin())) {
- SmallString<256> Msg;
- llvm::raw_svector_ostream OS(Msg);
- Jobs.Print(OS, "; ", true);
- Diags.Report(diag::err_fe_expected_compiler_job) << OS.str();
- return 1;
- }
-
- const driver::Command &Cmd = cast<driver::Command>(*Jobs.begin());
- if (llvm::StringRef(Cmd.getCreator().getName()) != "clang") {
- Diags.Report(diag::err_fe_expected_clang_command);
- return 1;
- }
-
- // Initialize a compiler invocation object from the clang (-cc1) arguments.
- const llvm::opt::ArgStringList &CCArgs = Cmd.getArguments();
- std::unique_ptr<CompilerInvocation> CI(new CompilerInvocation);
- CompilerInvocation::CreateFromArgs(*CI,
- const_cast<const char **>(CCArgs.data()),
- const_cast<const char **>(CCArgs.data()) +
- CCArgs.size(),
- Diags);
-
- // Show the invocation, with -v.
- if (CI->getHeaderSearchOpts().Verbose) {
- llvm::errs() << "clang invocation:\n";
- Jobs.Print(llvm::errs(), "\n", true);
- llvm::errs() << "\n";
- }
-
- // FIXME: This is copied from cc1_main.cpp; simplify and eliminate.
-
- // Create a compiler instance to handle the actual work.
- CompilerInstance Clang;
- Clang.setInvocation(std::move(CI));
-
- // Create the compilers actual diagnostics engine.
- Clang.createDiagnostics();
- if (!Clang.hasDiagnostics())
- return 1;
-
- // Infer the builtin include path if unspecified.
- if (Clang.getHeaderSearchOpts().UseBuiltinIncludes &&
- Clang.getHeaderSearchOpts().ResourceDir.empty())
- Clang.getHeaderSearchOpts().ResourceDir =
- CompilerInvocation::GetResourcesPath(argv[0], MainAddr);
-
- // Create and execute the frontend to generate an LLVM bitcode module.
- std::unique_ptr<CodeGenAction> Act(new EmitLLVMOnlyAction());
- if (!Clang.ExecuteAction(*Act))
- return 1;
-
- llvm::InitializeNativeTarget();
- llvm::InitializeNativeTargetAsmPrinter();
-
- int Res = 255;
- std::unique_ptr<llvm::Module> Module = Act->takeModule();
-
- if (Module) {
- llvm::orc::SimpleJIT J;
- auto H = J.addModule(std::move(Module));
- auto Main = (int(*)(...))J.getSymbolAddress("main");
- Res = Main();
- J.removeModule(H);
- }
-
- // Shutdown.
- llvm::llvm_shutdown();
-
- return Res;
-}