[PATCH 14/34] 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: Test 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 Signed-off-by: Wang NanCc: Arnaldo Carvalho de Melo Cc: Alexei Starovoitov Cc: He Kuang Cc: Jiri Olsa Cc: Zefan Li Cc: pi3or...@163.com --- tools/perf/tests/Build | 1 + tools/perf/tests/builtin-test.c| 9 tools/perf/tests/clang.c | 42 + tools/perf/tests/tests.h | 3 ++ tools/perf/util/Build | 2 + tools/perf/util/c++/Build | 2 + tools/perf/util/c++/clang-c.h | 16 +++ tools/perf/util/c++/clang-test.cpp | 31 tools/perf/util/c++/clang.cpp | 96 ++ tools/perf/util/c++/clang.h| 16 +++ 10 files changed, 218 insertions(+) create mode 100644 tools/perf/tests/clang.c create mode 100644 tools/perf/util/c++/Build create mode 100644 tools/perf/util/c++/clang-c.h create mode 100644 tools/perf/util/c++/clang-test.cpp create mode 100644 tools/perf/util/c++/clang.cpp create mode 100644 tools/perf/util/c++/clang.h diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build index af3ec94..6676c2d 100644 --- a/tools/perf/tests/Build +++ b/tools/perf/tests/Build @@ -43,6 +43,7 @@ perf-y += sdt.o perf-y += is_printable_array.o perf-y += bitmap.o perf-y += perf-hooks.o +perf-y += clang.o $(OUTPUT)tests/llvm-src-base.c: tests/bpf-script-example.c tests/Build $(call rule_mkdir) diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index dab83f7..33aaa52 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -234,6 +234,15 @@ static struct test generic_tests[] = { .func = test__perf_hooks, }, { + .desc = "Test builtin clang support", + .func = test__clang, + .subtest = { + .skip_if_fail = true, + .get_nr = test__clang_subtest_get_nr, + .get_desc = test__clang_subtest_get_desc, + } + }, + { .func = NULL, }, }; diff --git a/tools/perf/tests/clang.c b/tools/perf/tests/clang.c new file mode 100644 index 000..57ee160 --- /dev/null +++ b/tools/perf/tests/clang.c @@ -0,0 +1,42 @@ +#include "tests.h" +#include "debug.h" +#include "util.h" +#include "c++/clang-c.h" + +static struct { + int (*func)(void); + const char *desc; +} clang_testcase_table[] = { +#ifdef HAVE_LIBCLANGLLVM_SUPPORT + { + .func = test__clang_to_IR, + .desc = "Test builtin clang compile C source to IR", + }, +#endif +}; + +int test__clang_subtest_get_nr(void) +{ + return (int)ARRAY_SIZE(clang_testcase_table); +} + +const char *test__clang_subtest_get_desc(int i) +{ + if (i < 0 || i >= (int)ARRAY_SIZE(clang_testcase_table)) + return NULL; + return clang_testcase_table[i].desc; +} + +#ifndef HAVE_LIBCLANGLLVM_SUPPORT +int test__clang(int i __maybe_unused) +{ + return TEST_SKIP; +} +#else +int test__clang(int i __maybe_unused) +{ + if (i < 0 || i >= (int)ARRAY_SIZE(clang_testcase_table)) + return TEST_FAIL; + return clang_testcase_table[i].func(); +} +#endif diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index 3a1f98f..0d7b251 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -92,6 +92,9 @@ int test__sdt_event(int subtest); int test__is_printable_array(int subtest); int test__bitmap_print(int subtest); int test__perf_hooks(int subtest); +int test__clang(int subtest); +const char *test__clang_subtest_get_desc(int subtest); +int test__clang_subtest_get_nr(void); #if defined(__arm__) || defined(__aarch64__) #ifdef HAVE_DWARF_UNWIND_SUPPORT diff --git a/tools/perf/util/Build b/tools/perf/util/Build index b2a47aa..743a889 100644 --- a/tools/perf/util/Build +++ b/tools/perf/util/Build @@ -125,6 +125,8 @@ endif libperf-y += perf-hooks.o +libperf-$(CONFIG_CXX) += c++/ + CFLAGS_config.o += -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))" # avoid compiler warnings in 32-bit mode CFLAGS_genelf_debug.o += -Wno-packed diff --git a/tools/perf/util/c++/Build b/tools/perf/util/c++/Build new file mode 100644 index 000..988fef1 --- /dev/null +++ b/tools/perf/util/c++/Build @@ -0,0
[PATCH 14/34] 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: Test 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 Signed-off-by: Wang Nan Cc: Arnaldo Carvalho de Melo Cc: Alexei Starovoitov Cc: He Kuang Cc: Jiri Olsa Cc: Zefan Li Cc: pi3or...@163.com --- tools/perf/tests/Build | 1 + tools/perf/tests/builtin-test.c| 9 tools/perf/tests/clang.c | 42 + tools/perf/tests/tests.h | 3 ++ tools/perf/util/Build | 2 + tools/perf/util/c++/Build | 2 + tools/perf/util/c++/clang-c.h | 16 +++ tools/perf/util/c++/clang-test.cpp | 31 tools/perf/util/c++/clang.cpp | 96 ++ tools/perf/util/c++/clang.h| 16 +++ 10 files changed, 218 insertions(+) create mode 100644 tools/perf/tests/clang.c create mode 100644 tools/perf/util/c++/Build create mode 100644 tools/perf/util/c++/clang-c.h create mode 100644 tools/perf/util/c++/clang-test.cpp create mode 100644 tools/perf/util/c++/clang.cpp create mode 100644 tools/perf/util/c++/clang.h diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build index af3ec94..6676c2d 100644 --- a/tools/perf/tests/Build +++ b/tools/perf/tests/Build @@ -43,6 +43,7 @@ perf-y += sdt.o perf-y += is_printable_array.o perf-y += bitmap.o perf-y += perf-hooks.o +perf-y += clang.o $(OUTPUT)tests/llvm-src-base.c: tests/bpf-script-example.c tests/Build $(call rule_mkdir) diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index dab83f7..33aaa52 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -234,6 +234,15 @@ static struct test generic_tests[] = { .func = test__perf_hooks, }, { + .desc = "Test builtin clang support", + .func = test__clang, + .subtest = { + .skip_if_fail = true, + .get_nr = test__clang_subtest_get_nr, + .get_desc = test__clang_subtest_get_desc, + } + }, + { .func = NULL, }, }; diff --git a/tools/perf/tests/clang.c b/tools/perf/tests/clang.c new file mode 100644 index 000..57ee160 --- /dev/null +++ b/tools/perf/tests/clang.c @@ -0,0 +1,42 @@ +#include "tests.h" +#include "debug.h" +#include "util.h" +#include "c++/clang-c.h" + +static struct { + int (*func)(void); + const char *desc; +} clang_testcase_table[] = { +#ifdef HAVE_LIBCLANGLLVM_SUPPORT + { + .func = test__clang_to_IR, + .desc = "Test builtin clang compile C source to IR", + }, +#endif +}; + +int test__clang_subtest_get_nr(void) +{ + return (int)ARRAY_SIZE(clang_testcase_table); +} + +const char *test__clang_subtest_get_desc(int i) +{ + if (i < 0 || i >= (int)ARRAY_SIZE(clang_testcase_table)) + return NULL; + return clang_testcase_table[i].desc; +} + +#ifndef HAVE_LIBCLANGLLVM_SUPPORT +int test__clang(int i __maybe_unused) +{ + return TEST_SKIP; +} +#else +int test__clang(int i __maybe_unused) +{ + if (i < 0 || i >= (int)ARRAY_SIZE(clang_testcase_table)) + return TEST_FAIL; + return clang_testcase_table[i].func(); +} +#endif diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index 3a1f98f..0d7b251 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -92,6 +92,9 @@ int test__sdt_event(int subtest); int test__is_printable_array(int subtest); int test__bitmap_print(int subtest); int test__perf_hooks(int subtest); +int test__clang(int subtest); +const char *test__clang_subtest_get_desc(int subtest); +int test__clang_subtest_get_nr(void); #if defined(__arm__) || defined(__aarch64__) #ifdef HAVE_DWARF_UNWIND_SUPPORT diff --git a/tools/perf/util/Build b/tools/perf/util/Build index b2a47aa..743a889 100644 --- a/tools/perf/util/Build +++ b/tools/perf/util/Build @@ -125,6 +125,8 @@ endif libperf-y += perf-hooks.o +libperf-$(CONFIG_CXX) += c++/ + CFLAGS_config.o += -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))" # avoid compiler warnings in 32-bit mode CFLAGS_genelf_debug.o += -Wno-packed diff --git a/tools/perf/util/c++/Build b/tools/perf/util/c++/Build new file mode 100644 index 000..988fef1 --- /dev/null +++ b/tools/perf/util/c++/Build @@ -0,0 +1,2 @@ +libperf-$(CONFIG_CLANGLLVM) += clang.o +libperf-$(CONFIG_CLANGLLVM) += clang-test.o diff --git