1// SPDX-License-Identifier: GPL-2.0
 2#include "clang.h"
 3#include "clang-c.h"
 4extern "C" {
 5#include "../util.h"
 6}
 7#include "llvm/IR/Function.h"
 8#include "llvm/IR/LLVMContext.h"
 9
10#include <tests/llvm.h>
11#include <string>
12
13class perf_clang_scope {
14public:
15	explicit perf_clang_scope() {perf_clang__init();}
16	~perf_clang_scope() {perf_clang__cleanup();}
17};
18
19static std::unique_ptr<llvm::Module>
20__test__clang_to_IR(void)
21{
22	unsigned int kernel_version;
23
24	if (fetch_kernel_version(&kernel_version, NULL, 0))
25		return std::unique_ptr<llvm::Module>(nullptr);
26
27	std::string cflag_kver("-DLINUX_VERSION_CODE=" +
28				std::to_string(kernel_version));
29
30	std::unique_ptr<llvm::Module> M =
31		perf::getModuleFromSource({cflag_kver.c_str()},
32					  "perf-test.c",
33					  test_llvm__bpf_base_prog);
34	return M;
35}
36
37extern "C" {
38int test__clang_to_IR(struct test_suite *test __maybe_unused,
39                      int subtest __maybe_unused)
40{
41	perf_clang_scope _scope;
42
43	auto M = __test__clang_to_IR();
44	if (!M)
45		return -1;
46	for (llvm::Function& F : *M)
47		if (F.getName() == "bpf_func__SyS_epoll_pwait")
48			return 0;
49	return -1;
50}
51
52int test__clang_to_obj(struct test_suite *test __maybe_unused,
53                       int subtest __maybe_unused)
54{
55	perf_clang_scope _scope;
56
57	auto M = __test__clang_to_IR();
58	if (!M)
59		return -1;
60
61	auto Buffer = perf::getBPFObjectFromModule(&*M);
62	if (!Buffer)
63		return -1;
64	return 0;
65}
66
67}