From 00b86691c77c6576861b82a3cfe4d609800758fe Mon Sep 17 00:00:00 2001 From: Wang Nan Date: Sat, 26 Nov 2016 07:03:34 +0000 Subject: perf clang: Add builtin clang support ant test case Add basic clang support in clang.cpp and test__clang() testcase. The first testcase checks if builtin clang is able to generate LLVM IR. tests/clang.c is a proxy. Real testcase resides in utils/c++/clang-test.cpp in c++ and exports C interface to perf test subsystem. Test result: $ perf test -v clang 51: builtin clang support : 51.1: Test builtin clang compile C source to IR : --- start --- test child forked, pid 13215 test child finished with 0 ---- end ---- Test builtin clang support subtest 0: Ok Committer note: Make sure you've enabled CLANG and LLVM builtin support by setting the LIBCLANGLLVM variable on the make command line, e.g.: make LIBCLANGLLVM=1 O=/tmp/build/perf -C tools/perf install-bin Otherwise you'll get this when trying to do the 'perf test' call above: # perf test clang 51: builtin clang support : Skip (not compiled in) # Signed-off-by: Wang Nan Tested-by: Arnaldo Carvalho de Melo Cc: Alexei Starovoitov Cc: He Kuang Cc: Jiri Olsa Cc: Joe Stringer Cc: Zefan Li Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/20161126070354.141764-11-wangnan0@huawei.com [ Removed "Test" from descriptions, redundant and already removed from all the other entries ] Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/c++/clang.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 tools/perf/util/c++/clang.h (limited to 'tools/perf/util/c++/clang.h') diff --git a/tools/perf/util/c++/clang.h b/tools/perf/util/c++/clang.h new file mode 100644 index 000000000000..f64483be43d0 --- /dev/null +++ b/tools/perf/util/c++/clang.h @@ -0,0 +1,16 @@ +#ifndef PERF_UTIL_CLANG_H +#define PERF_UTIL_CLANG_H + +#include "llvm/ADT/StringRef.h" +#include "llvm/IR/LLVMContext.h" +#include "llvm/IR/Module.h" +#include +namespace perf { + +using namespace llvm; + +std::unique_ptr +getModuleFromSource(StringRef Name, StringRef Content); + +} +#endif -- cgit