On 11/5/21 10:25 AM, Anders Roxell wrote:
When building selftests/cgroup: with clang the following error are seen:
clang -Wall -pthread test_memcontrol.c cgroup_util.c ../clone3/clone3_selftests.h -o /home/anders/.cache/tuxmake/builds/current/kselftest/cgroup/test_memcontrol
clang: error: cannot specify -o when generating multiple output files
make[3]: *** [../lib.mk:146: /home/anders/.cache/tuxmake/builds/current/kselftest/cgroup/test_memcontrol] Error 1
Rework to add the header files to LOCAL_HDRS before including ../lib.mk,
since the dependency is evaluated in '$(OUTPUT)/%:%.c $(LOCAL_HDRS)' in
file lib.mk.
Suggested-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Anders Roxell <anders.roxell@xxxxxxxxxx>
---
tools/testing/selftests/cgroup/Makefile | 12 +++++++-----
tools/testing/selftests/lib.mk | 2 +-
2 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/tools/testing/selftests/cgroup/Makefile b/tools/testing/selftests/cgroup/Makefile
index 59e222460581..745fe25fa0b9 100644
--- a/tools/testing/selftests/cgroup/Makefile
+++ b/tools/testing/selftests/cgroup/Makefile
@@ -11,10 +11,12 @@ TEST_GEN_PROGS += test_core
TEST_GEN_PROGS += test_freezer
TEST_GEN_PROGS += test_kill
+LOCAL_HDRS += $(selfdir)/clone3/clone3_selftests.h $(selfdir)/pidfd/pidfd.h
+
This looks odd to me. Why are we introducing dependencies between tests?
clone3 includes in cgroup? Looks odd to me.
thanks,
-- Shuah