5.0-stable review patch. If anyone has any objections, please let me know.
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[ Upstream commit 1c3b28fd7ae80c8f6bf1a09e1848e20a953c9ce4 ]
Since it is not yet that generally available, avoid testing for the presence of libcoresight in the fast path test-all.bin feature test.
# dnf search opencsd No matches found. # dnf search OpenCSD No matches found. # cat /etc/fedora-release Fedora release 29 (Twenty Nine) #
I.e. right now, in my system test-all.bin is failing all the time since Fedora29 doesn't have libopencsd available:
$ cat /tmp/build/perf/feature/test-all.make.output In file included from test-all.c:174: test-libopencsd.c:2:10: fatal error: opencsd/c_api/opencsd_c_api.h: No such file or directory #include <opencsd/c_api/opencsd_c_api.h> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ compilation terminated.
See:
6ab2b762befd ("perf build: Disable libbabeltrace check by default")
For the rationale, as soon as libopencsd becomes more generally packaged and available, we do the same thing we did with babeltrace, enabling it by default, as done in:
24787afbcd01 ("perf tools: Enable LIBBABELTRACE by default")
For now, to explicitely ask for opencsd, make sure you have it installed and use:
make -C tools/perf CORESIGHT=1
The feature test output will be there as an empty file:
$ ls -la /tmp/build/perf/feature/test-libopencsd.make.output
Because the binary used for the feature check was successfully built:
$ ls -la /tmp/build/perf/feature/test-libopencsd.bin -rwxrwxr-x. 1 acme acme 18336 Feb 12 14:49 /tmp/build/perf/feature/test-libopencsd.bin $ ldd /tmp/build/perf/feature/test-libopencsd.bin linux-vdso.so.1 (0x00007fffe18cc000) libopencsd_c_api.so.0 => /lib64/libopencsd_c_api.so.0 (0x00007fb8e67f6000) libopencsd.so.0 => /lib64/libopencsd.so.0 (0x00007fb8e676f000) libc.so.6 => /lib64/libc.so.6 (0x00007fb8e65a9000) libstdc++.so.6 => /lib64/libstdc++.so.6 (0x00007fb8e6411000) libm.so.6 => /lib64/libm.so.6 (0x00007fb8e628d000) libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007fb8e6272000) /lib64/ld-linux-x86-64.so.2 (0x00007fb8e6828000) $
And the resulting perf binary will be linked with it:
-rw-rw-r--. 1 acme acme 0 Feb 12 14:49 /tmp/build/perf/feature/test-libopencsd.make.output $ ldd ~/bin/perf | grep opencsd libopencsd_c_api.so.0 => /lib64/libopencsd_c_api.so.0 (0x00007fd43097f000) libopencsd.so.0 => /lib64/libopencsd.so.0 (0x00007fd4308f8000) $
To make sure this gets built before pushing things upstream I have a ubuntu:19.04-x-arm64 container that has:
[root@quaco x-arm64]# grep CORESIGHT Dockerfile ENV EXTRA_MAKE_ARGS=CORESIGHT=1 [root@quaco x-arm64]#
So that I always build with libopencsd before pushing things upstream.
Cc: Adrian Hunter adrian.hunter@intel.com Cc: Alexander Shishkin alexander.shishkin@linux.intel.com Cc: Jiri Olsa jolsa@kernel.org Cc: Kim Phillips kim.phillips@arm.com Cc: linux-arm-kernel@lists.infradead.org Cc: Mathieu Poirier mathieu.poirier@linaro.org Cc: Mike Leach mike.leach@arm.com Cc: Namhyung Kim namhyung@kernel.org Cc: Peter Zijlstra peterz@infradead.org Cc: Suzuki Poulouse suzuki.poulose@arm.com Link: https://lkml.kernel.org/n/tip-20vyy39jw9jgrijesi30fgox@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/build/Makefile.feature | 2 +- tools/build/feature/test-all.c | 5 ----- tools/perf/Makefile.config | 3 ++- tools/perf/Makefile.perf | 2 +- 4 files changed, 4 insertions(+), 8 deletions(-)
diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature index 5467c6bf9ceb..bb9dca65eb5f 100644 --- a/tools/build/Makefile.feature +++ b/tools/build/Makefile.feature @@ -70,7 +70,6 @@ FEATURE_TESTS_BASIC := \ sched_getcpu \ sdt \ setns \ - libopencsd \ libaio
# FEATURE_TESTS_BASIC + FEATURE_TESTS_EXTRA is the complete list @@ -84,6 +83,7 @@ FEATURE_TESTS_EXTRA := \ libbabeltrace \ libbfd-liberty \ libbfd-liberty-z \ + libopencsd \ libunwind-debug-frame \ libunwind-debug-frame-arm \ libunwind-debug-frame-aarch64 \ diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c index 93f485098161..e903b86b742f 100644 --- a/tools/build/feature/test-all.c +++ b/tools/build/feature/test-all.c @@ -170,10 +170,6 @@ # include "test-setns.c" #undef main
-#define main main_test_libopencsd -# include "test-libopencsd.c" -#undef main - #define main main_test_libaio # include "test-libaio.c" #undef main @@ -221,7 +217,6 @@ int main(int argc, char *argv[]) main_test_sched_getcpu(); main_test_sdt(); main_test_setns(); - main_test_libopencsd(); main_test_libaio(); main_test_reallocarray();
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index e6360d47e73a..cf4a8329c4c0 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -388,7 +388,8 @@ ifeq ($(feature-setns), 1) $(call detected,CONFIG_SETNS) endif
-ifndef NO_CORESIGHT +ifdef CORESIGHT + $(call feature_check,libopencsd) ifeq ($(feature-libopencsd), 1) CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS) LDFLAGS += $(LIBOPENCSD_LDFLAGS) diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 0ee6795d82cc..77f8f069f1e7 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -102,7 +102,7 @@ include ../scripts/utilities.mak # When selected, pass LLVM_CONFIG=/path/to/llvm-config to `make' if # llvm-config is not in $PATH. # -# Define NO_CORESIGHT if you do not want support for CoreSight trace decoding. +# Define CORESIGHT if you DO WANT support for CoreSight trace decoding. # # Define NO_AIO if you do not want support of Posix AIO based trace # streaming for record mode. Currently Posix AIO trace streaming is