1 // SPDX-License-Identifier: GPL-2.0
6  * http://llvm.org/svn/llvm-project/cfe/trunk/examples/clang-interpreter/main.cpp
19 #include "llvm/IR/Module.h"
25 #include "llvm/Target/TargetMachine.h"
26 #include "llvm/Target/TargetOptions.h"
30 #include "clang-c.h"
43 		"-cc1",  in createCompilerInvocation()
44 		"-triple", "bpf-pc-linux",  in createCompilerInvocation()
45 		"-fsyntax-only",  in createCompilerInvocation()
46 		"-ferror-limit", "19",  in createCompilerInvocation()
47 		"-fmessage-length", "127",  in createCompilerInvocation()
48 		"-O2",  in createCompilerInvocation()
49 		"-nostdsysteminc",  in createCompilerInvocation()
50 		"-nobuiltininc",  in createCompilerInvocation()
51 		"-vectorize-loops",  in createCompilerInvocation()
52 		"-vectorize-slp",  in createCompilerInvocation()
53 		"-Wno-unused-value",  in createCompilerInvocation()
54 		"-Wno-pointer-sign",  in createCompilerInvocation()
55 		"-x", "c"};  in createCompilerInvocation()
60 	FrontendOptions& Opts = CI->getFrontendOpts();  in createCompilerInvocation()
67 static std::unique_ptr<llvm::Module>
94 		return std::unique_ptr<llvm::Module>(nullptr);  in getModuleFromSource()
96 	return Act->takeModule();  in getModuleFromSource()
99 std::unique_ptr<llvm::Module>
114 	OverlayFS->pushOverlay(MemFS);  in getModuleFromSource()
115 	MemFS->addFile(Twine(Name), 0, llvm::MemoryBuffer::getMemBuffer(Content));  in getModuleFromSource()
120 std::unique_ptr<llvm::Module>
128 getBPFObjectFromModule(llvm::Module *Module)  in getBPFObjectFromModule()  argument
132 	std::string TargetTriple("bpf-pc-linux");  in getBPFObjectFromModule()
134 	const Target* Target = TargetRegistry::lookupTarget(TargetTriple, Error);  in getBPFObjectFromModule()  local
135 	if (!Target) {  in getBPFObjectFromModule()
142 		Target->createTargetMachine(TargetTriple,  in getBPFObjectFromModule()
146 	Module->setDataLayout(TargetMachine->createDataLayout());  in getBPFObjectFromModule()
147 	Module->setTargetTriple(TargetTriple);  in getBPFObjectFromModule()
155 	NotAdded = TargetMachine->addPassesToEmitFile(PM, ostream,  in getBPFObjectFromModule()
158 	NotAdded = TargetMachine->addPassesToEmitFile(PM, ostream, nullptr,  in getBPFObjectFromModule()
165 	PM.run(*Module);  in getBPFObjectFromModule()
195 		return -EINVAL;  in perf_clang__compile_bpf()
200 		return  -EINVAL;  in perf_clang__compile_bpf()
203 		return -EINVAL;  in perf_clang__compile_bpf()
205 	size_t size = O->size_in_bytes();  in perf_clang__compile_bpf()
210 		return -ENOMEM;  in perf_clang__compile_bpf()
211 	memcpy(buffer, O->data(), size);  in perf_clang__compile_bpf()