Shuah Khan skhan@linuxfoundation.org writes:
On 3/4/20 3:42 PM, Kees Cook wrote:
On Wed, Mar 04, 2020 at 03:13:33PM -0700, Shuah Khan wrote:
Fix seccomp relocatable builds. This is a simple fix to use the right lib.mk variable TEST_GEN_PROGS for objects to leverage lib.mk common framework for relocatable builds.
Signed-off-by: Shuah Khan skhan@linuxfoundation.org
tools/testing/selftests/seccomp/Makefile | 16 +++------------- 1 file changed, 3 insertions(+), 13 deletions(-)
diff --git a/tools/testing/selftests/seccomp/Makefile b/tools/testing/selftests/seccomp/Makefile index 1760b3e39730..a8a9717fc1be 100644 --- a/tools/testing/selftests/seccomp/Makefile +++ b/tools/testing/selftests/seccomp/Makefile @@ -1,17 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 -all:
-include ../lib.mk
-.PHONY: all clean
-BINARIES := seccomp_bpf seccomp_benchmark CFLAGS += -Wl,-no-as-needed -Wall +LDFLAGS += -lpthread -seccomp_bpf: seccomp_bpf.c ../kselftest_harness.h
How is the ../kselftest_harness.h dependency detected in the resulting build rules?
Otherwise, looks good.
Didn't see any problems. I will look into adding the dependency.
Before:
$ make --no-print-directory -C tools/testing/selftests/ TARGETS=seccomp make --no-builtin-rules INSTALL_HDR_PATH=$BUILD/usr \ ARCH=powerpc -C ../../.. headers_install INSTALL /home/michael/build/adhoc/kselftest/usr/include gcc -Wl,-no-as-needed -Wall seccomp_bpf.c -lpthread -o seccomp_bpf gcc -Wl,-no-as-needed -Wall seccomp_benchmark.c -o seccomp_benchmark
$ touch tools/testing/selftests/kselftest_harness.h
$ make --no-print-directory -C tools/testing/selftests/ TARGETS=seccomp make --no-builtin-rules INSTALL_HDR_PATH=$BUILD/usr \ ARCH=powerpc -C ../../.. headers_install INSTALL /home/michael/build/adhoc/kselftest/usr/include gcc -Wl,-no-as-needed -Wall seccomp_bpf.c -lpthread -o seccomp_bpf $
Note that touching the header causes it to rebuild seccomp_bpf.
With this patch applied:
$ make --no-print-directory -C tools/testing/selftests/ TARGETS=seccomp make -s --no-builtin-rules INSTALL_HDR_PATH=$BUILD/usr \ ARCH=powerpc -C ../../.. headers_install gcc -Wl,-no-as-needed -Wall -lpthread seccomp_bpf.c -o /home/michael/build/adhoc/kselftest/seccomp/seccomp_bpf gcc -Wl,-no-as-needed -Wall -lpthread seccomp_benchmark.c -o /home/michael/build/adhoc/kselftest/seccomp/seccomp_benchmark
$ touch tools/testing/selftests/kselftest_harness.h
$ make --no-print-directory -C tools/testing/selftests/ TARGETS=seccomp make -s --no-builtin-rules INSTALL_HDR_PATH=$BUILD/usr \ ARCH=powerpc -C ../../.. headers_install make[1]: Nothing to be done for 'all'. $
So yeah it still needs:
seccomp_bpf: ../kselftest_harness.h
cheers