[PATCH 01/10] perf tools: Integrating the CoreSight decoding library
From: mathieu.poirier@linaro.org (Mathieu Poirier)
Date: 2017-12-15 16:47:19
Also in:
lkml
Subsystem:
performance events subsystem, performance events tooling arm64, the rest · Maintainers:
Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo, Namhyung Kim, Linus Torvalds
The Open CoreSight Decoding Library (openCSD) is a free and open library to decode traces collected by the CoreSight hardware infrastructure. This patch adds the required mechanic to recognise the presence of the openCSD library on a system and set up miscellaneous flags to be used in the compilation of the trace decoding feature. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> --- tools/build/Makefile.feature | 6 ++++-- tools/build/feature/Makefile | 6 +++++- tools/build/feature/test-all.c | 5 +++++ tools/build/feature/test-libopencsd.c | 8 ++++++++ tools/perf/Makefile.config | 13 +++++++++++++ 5 files changed, 35 insertions(+), 3 deletions(-) create mode 100644 tools/build/feature/test-libopencsd.c
diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index e52fcefee379..dc3d97b248ab 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature@@ -66,7 +66,8 @@ FEATURE_TESTS_BASIC := \ bpf \ sched_getcpu \ sdt \ - setns + setns \ + libopencsd # FEATURE_TESTS_BASIC + FEATURE_TESTS_EXTRA is the complete list # of all feature tests
@@ -108,7 +109,8 @@ FEATURE_DISPLAY ?= \ zlib \ lzma \ get_cpuid \ - bpf + bpf \ + libopencsd # Set FEATURE_CHECK_(C|LD)FLAGS-all for all FEATURE_TESTS features. # If in the future we need per-feature checks/flags for features not
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index cff38f342283..2aae2d3fb5f6 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile@@ -52,7 +52,8 @@ FILES= \ test-cxx.bin \ test-jvmti.bin \ test-sched_getcpu.bin \ - test-setns.bin + test-setns.bin \ + test-libopencsd.bin FILES := $(addprefix $(OUTPUT),$(FILES))
@@ -104,6 +105,9 @@ $(OUTPUT)test-sched_getcpu.bin: $(OUTPUT)test-setns.bin: $(BUILD) +$(OUTPUT)test-libopencsd.bin: + $(BUILD) -lopencsd_c_api + DWARFLIBS := -ldw ifeq ($(findstring -static,${LDFLAGS}),-static) DWARFLIBS += -lelf -lebl -lz -llzma -lbz2
diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c
index 6fdf83263ab7..38ab0fd7a74c 100644
--- a/tools/build/feature/test-all.c
+++ b/tools/build/feature/test-all.c@@ -162,6 +162,10 @@ # include "test-setns.c" #undef main +#define main main_test_setns +# include "test-libopencsd.c" +#undef main + int main(int argc, char *argv[]) { main_test_libpython();
@@ -199,6 +203,7 @@ int main(int argc, char *argv[]) main_test_sched_getcpu(); main_test_sdt(); main_test_setns(); + main_test_libopencsd(); return 0; }
diff --git a/tools/build/feature/test-libopencsd.c b/tools/build/feature/test-libopencsd.c
new file mode 100644
index 000000000000..cd4fb99eb9d3
--- /dev/null
+++ b/tools/build/feature/test-libopencsd.c@@ -0,0 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#include <opencsd/c_api/opencsd_c_api.h> + +int main(void) +{ + (void)ocsd_get_version(); + return 0; +}
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 79b117a03fd7..2d0b99f7b4e7 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config@@ -346,6 +346,19 @@ ifeq ($(feature-setns), 1) $(call detected,CONFIG_SETNS) endif +ifeq ($(feature-libopencsd), 1) + CFLAGS += -DHAVE_CSTRACE_SUPPORT + LIBCSTRACE = -lopencsd_c_api -lopencsd + EXTLIBS += $(LIBCSTRACE) + $(call detected,CONFIG_LIBOPENCSD) + ifdef CSTRACE_RAW + CFLAGS += -DCS_DEBUG_RAW + ifeq (${CSTRACE_RAW}, packed) + CFLAGS += -DCS_RAW_PACKED + endif + endif +endif + ifndef NO_LIBELF CFLAGS += -DHAVE_LIBELF_SUPPORT EXTLIBS += -lelf
--
2.7.4