Files
Linux/tools/perf/util/c++/clang-test.cpp
T
Ian Rogers 44a8528c24 perf test: Convert clang tests to test cases.
Use null terminated array of test cases rather than the previous sub
test functions.

Signed-off-by: Ian Rogers <[email protected]>
Tested-by: Sohaib Mohamed <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Brendan Higgins <[email protected]>
Cc: Daniel Latypov <[email protected]>
Cc: David Gow <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: John Garry <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-11-13 18:11:49 -03:00

68 lines
1.4 KiB
C++

// SPDX-License-Identifier: GPL-2.0
#include "clang.h"
#include "clang-c.h"
extern "C" {
#include "../util.h"
}
#include "llvm/IR/Function.h"
#include "llvm/IR/LLVMContext.h"
#include <tests/llvm.h>
#include <string>
class perf_clang_scope {
public:
explicit perf_clang_scope() {perf_clang__init();}
~perf_clang_scope() {perf_clang__cleanup();}
};
static std::unique_ptr<llvm::Module>
__test__clang_to_IR(void)
{
unsigned int kernel_version;
if (fetch_kernel_version(&kernel_version, NULL, 0))
return std::unique_ptr<llvm::Module>(nullptr);
std::string cflag_kver("-DLINUX_VERSION_CODE=" +
std::to_string(kernel_version));
std::unique_ptr<llvm::Module> M =
perf::getModuleFromSource({cflag_kver.c_str()},
"perf-test.c",
test_llvm__bpf_base_prog);
return M;
}
extern "C" {
int test__clang_to_IR(struct test_suite *test __maybe_unused,
int subtest __maybe_unused)
{
perf_clang_scope _scope;
auto M = __test__clang_to_IR();
if (!M)
return -1;
for (llvm::Function& F : *M)
if (F.getName() == "bpf_func__SyS_epoll_pwait")
return 0;
return -1;
}
int test__clang_to_obj(struct test_suite *test __maybe_unused,
int subtest __maybe_unused)
{
perf_clang_scope _scope;
auto M = __test__clang_to_IR();
if (!M)
return -1;
auto Buffer = perf::getBPFObjectFromModule(&*M);
if (!Buffer)
return -1;
return 0;
}
}