1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0 2*4882a593Smuzhiyun #include "clang.h" 3*4882a593Smuzhiyun #include "clang-c.h" 4*4882a593Smuzhiyun extern "C" { 5*4882a593Smuzhiyun #include "../util.h" 6*4882a593Smuzhiyun } 7*4882a593Smuzhiyun #include "llvm/IR/Function.h" 8*4882a593Smuzhiyun #include "llvm/IR/LLVMContext.h" 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #include <tests/llvm.h> 11*4882a593Smuzhiyun #include <string> 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun class perf_clang_scope { 14*4882a593Smuzhiyun public: perf_clang_scope()15*4882a593Smuzhiyun explicit perf_clang_scope() {perf_clang__init();} ~perf_clang_scope()16*4882a593Smuzhiyun ~perf_clang_scope() {perf_clang__cleanup();} 17*4882a593Smuzhiyun }; 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun static std::unique_ptr<llvm::Module> __test__clang_to_IR(void)20*4882a593Smuzhiyun__test__clang_to_IR(void) 21*4882a593Smuzhiyun { 22*4882a593Smuzhiyun unsigned int kernel_version; 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun if (fetch_kernel_version(&kernel_version, NULL, 0)) 25*4882a593Smuzhiyun return std::unique_ptr<llvm::Module>(nullptr); 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun std::string cflag_kver("-DLINUX_VERSION_CODE=" + 28*4882a593Smuzhiyun std::to_string(kernel_version)); 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun std::unique_ptr<llvm::Module> M = 31*4882a593Smuzhiyun perf::getModuleFromSource({cflag_kver.c_str()}, 32*4882a593Smuzhiyun "perf-test.c", 33*4882a593Smuzhiyun test_llvm__bpf_base_prog); 34*4882a593Smuzhiyun return M; 35*4882a593Smuzhiyun } 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun extern "C" { test__clang_to_IR(void)38*4882a593Smuzhiyunint test__clang_to_IR(void) 39*4882a593Smuzhiyun { 40*4882a593Smuzhiyun perf_clang_scope _scope; 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun auto M = __test__clang_to_IR(); 43*4882a593Smuzhiyun if (!M) 44*4882a593Smuzhiyun return -1; 45*4882a593Smuzhiyun for (llvm::Function& F : *M) 46*4882a593Smuzhiyun if (F.getName() == "bpf_func__SyS_epoll_pwait") 47*4882a593Smuzhiyun return 0; 48*4882a593Smuzhiyun return -1; 49*4882a593Smuzhiyun } 50*4882a593Smuzhiyun test__clang_to_obj(void)51*4882a593Smuzhiyunint test__clang_to_obj(void) 52*4882a593Smuzhiyun { 53*4882a593Smuzhiyun perf_clang_scope _scope; 54*4882a593Smuzhiyun 55*4882a593Smuzhiyun auto M = __test__clang_to_IR(); 56*4882a593Smuzhiyun if (!M) 57*4882a593Smuzhiyun return -1; 58*4882a593Smuzhiyun 59*4882a593Smuzhiyun auto Buffer = perf::getBPFObjectFromModule(&*M); 60*4882a593Smuzhiyun if (!Buffer) 61*4882a593Smuzhiyun return -1; 62*4882a593Smuzhiyun return 0; 63*4882a593Smuzhiyun } 64*4882a593Smuzhiyun 65*4882a593Smuzhiyun } 66