Re: [RFC PATCH for 4.15 14/14] Restartable sequences: Provide self-tests

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----- On Oct 17, 2017, at 6:36 AM, Michael Ellerman mpe@xxxxxxxxxxxxxx wrote:

> Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx> writes:
> 
>> Hi Michael,
>>
>> With your changes integrated, both rseq and cpu-opv selftests fail to
>> build if I pass e.g. -j32 to make.
>>
>> cd tools/testing/selftests/cpu-opv
>>
>> efficios@compudjdev:~/git/linux-percpu-dev/tools/testing/selftests/cpu-opv$ make
>> clean; make
>> rm -f -r
>> /home/efficios/git/linux-percpu-dev/tools/testing/selftests/cpu-opv/basic_cpu_opv_test
>> gcc -O2 -Wall -g -I./ -I../../../../usr/include/    basic_cpu_opv_test.c
>> cpu-op.c cpu-op.h   -o basic_cpu_opv_test
>>
>> efficios@compudjdev:~/git/linux-percpu-dev/tools/testing/selftests/cpu-opv$ make
>> clean; make -j32
>> rm -f -r
>> /home/efficios/git/linux-percpu-dev/tools/testing/selftests/cpu-opv/basic_cpu_opv_test
>> gcc -O2 -Wall -g -I./ -I../../../../usr/include/    basic_cpu_opv_test.c
>> cpu-op.c cpu-op.h   -o basic_cpu_opv_test
>> gcc -O2 -Wall -g -I./ -I../../../../usr/include/    basic_cpu_opv_test.c  -o
>> /home/efficios/git/linux-percpu-dev/tools/testing/selftests/cpu-opv/basic_cpu_opv_test
>> /tmp/ccDthnqM.o: In function `test_memcpy_op':
>> /home/efficios/git/linux-percpu-dev/tools/testing/selftests/cpu-opv/basic_cpu_opv_test.c:364:
>> undefined reference to `cpu_op_get_current_cpu'
>> /home/efficios/git/linux-percpu-dev/tools/testing/selftests/cpu-opv/basic_cpu_opv_test.c:365:
>> undefined reference to `cpu_opv'
> ...
>> make: ***
>> [/home/efficios/git/linux-percpu-dev/tools/testing/selftests/cpu-opv/basic_cpu_opv_test]
>> Error 1
>> make: *** Waiting for unfinished jobs....
>>
>> Any idea what is going on here ?
> 
> Ugh sorry, yes.
> 
> New patch below should fix it. Tested with -j:

Perfect, folding it into my series.

I see that the "all" target was redundant here.

Thanks,

Mathieu

> 
>  ~/linux/tools/testing/selftests$ make TARGETS="rseq cpu-opv" -j
>  make[1]: Entering directory '/home/michael/linux/tools/testing/selftests/rseq'
>  gcc -O2 -Wall -g -I./ -I../cpu-opv/ -I../../../../usr/include/    basic_test.c
>  rseq.h rseq-ppc.h rseq-x86.h rseq-arm.h rseq.c ../cpu-opv/cpu-op.c
>  ../cpu-opv/cpu-op.h -lpthread -o
>  /home/michael/linux/tools/testing/selftests/rseq/basic_test
>  gcc -O2 -Wall -g -I./ -I../cpu-opv/ -I../../../../usr/include/
>  basic_percpu_ops_test.c rseq.h rseq-ppc.h rseq-x86.h rseq-arm.h rseq.c
>  ../cpu-opv/cpu-op.c ../cpu-opv/cpu-op.h -lpthread -o
>  /home/michael/linux/tools/testing/selftests/rseq/basic_percpu_ops_test
>  gcc -O2 -Wall -g -I./ -I../cpu-opv/ -I../../../../usr/include/    param_test.c
>  rseq.h rseq-ppc.h rseq-x86.h rseq-arm.h rseq.c ../cpu-opv/cpu-op.c
>  ../cpu-opv/cpu-op.h -lpthread -o
>  /home/michael/linux/tools/testing/selftests/rseq/param_test
>  make[1]: Leaving directory '/home/michael/linux/tools/testing/selftests/rseq'
>  make[1]: Entering directory
>  '/home/michael/linux/tools/testing/selftests/cpu-opv'
>  gcc -O2 -Wall -g -I./ -I../../../../usr/include/    basic_cpu_opv_test.c
>  cpu-op.c cpu-op.h  -o
>  /home/michael/linux/tools/testing/selftests/cpu-opv/basic_cpu_opv_test
>  make[1]: Leaving directory '/home/michael/linux/tools/testing/selftests/cpu-opv'
>  ~/linux/tools/testing/selftests$ make TARGETS="rseq cpu-opv" clean
>  make[1]: Entering directory '/home/michael/linux/tools/testing/selftests/rseq'
>  rm -f -r /home/michael/linux/tools/testing/selftests/rseq/basic_test
>  /home/michael/linux/tools/testing/selftests/rseq/basic_percpu_ops_test
>  /home/michael/linux/tools/testing/selftests/rseq/param_test
>  make[1]: Leaving directory '/home/michael/linux/tools/testing/selftests/rseq'
>  make[1]: Entering directory
>  '/home/michael/linux/tools/testing/selftests/cpu-opv'
>  rm -f -r /home/michael/linux/tools/testing/selftests/cpu-opv/basic_cpu_opv_test
>  make[1]: Leaving directory '/home/michael/linux/tools/testing/selftests/cpu-opv'
>  ~/linux/tools/testing/selftests$ cd cpu-opv/
>  ~/linux/tools/testing/selftests/cpu-opv$ make -j
>  gcc -O2 -Wall -g -I./ -I../../../../usr/include/    basic_cpu_opv_test.c
>  cpu-op.c cpu-op.h  -o
>  /home/michael/linux/tools/testing/selftests/cpu-opv/basic_cpu_opv_test
>  ~/linux/tools/testing/selftests/cpu-opv$ make clean
>  rm -f -r /home/michael/linux/tools/testing/selftests/cpu-opv/basic_cpu_opv_test
>  ~/linux/tools/testing/selftests/cpu-opv$ cd ../rseq/
>  ~/linux/tools/testing/selftests/rseq$ make -j
>  gcc -O2 -Wall -g -I./ -I../cpu-opv/ -I../../../../usr/include/    basic_test.c
>  rseq.h rseq-ppc.h rseq-x86.h rseq-arm.h rseq.c ../cpu-opv/cpu-op.c
>  ../cpu-opv/cpu-op.h -lpthread -o
>  /home/michael/linux/tools/testing/selftests/rseq/basic_test
>  gcc -O2 -Wall -g -I./ -I../cpu-opv/ -I../../../../usr/include/
>  basic_percpu_ops_test.c rseq.h rseq-ppc.h rseq-x86.h rseq-arm.h rseq.c
>  ../cpu-opv/cpu-op.c ../cpu-opv/cpu-op.h -lpthread -o
>  /home/michael/linux/tools/testing/selftests/rseq/basic_percpu_ops_test
>  gcc -O2 -Wall -g -I./ -I../cpu-opv/ -I../../../../usr/include/    param_test.c
>  rseq.h rseq-ppc.h rseq-x86.h rseq-arm.h rseq.c ../cpu-opv/cpu-op.c
>  ../cpu-opv/cpu-op.h -lpthread -o
>  /home/michael/linux/tools/testing/selftests/rseq/param_test
>  ~/linux/tools/testing/selftests/rseq$ make clean
>  rm -f -r /home/michael/linux/tools/testing/selftests/rseq/basic_test
>  /home/michael/linux/tools/testing/selftests/rseq/basic_percpu_ops_test
>  /home/michael/linux/tools/testing/selftests/rseq/param_test
> 
> 
> 
> cheers
> 
> diff --git a/tools/testing/selftests/cpu-opv/Makefile
> b/tools/testing/selftests/cpu-opv/Makefile
> index 81d0596824ee..d27bd0f74deb 100644
> --- a/tools/testing/selftests/cpu-opv/Makefile
> +++ b/tools/testing/selftests/cpu-opv/Makefile
> @@ -1,13 +1,7 @@
> CFLAGS += -O2 -Wall -g -I./ -I../../../../usr/include/
> -LDFLAGS += -lpthread
> 
> -TESTS = basic_cpu_opv_test
> -
> -all: $(TESTS)
> -%: %.c cpu-op.c cpu-op.h
> -       $(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
> +TEST_GEN_PROGS = basic_cpu_opv_test
> 
> include ../lib.mk
> 
> -clean:
> -       $(RM) $(TESTS)
> +$(TEST_GEN_PROGS): cpu-op.c cpu-op.h
> diff --git a/tools/testing/selftests/rseq/Makefile
> b/tools/testing/selftests/rseq/Makefile
> index 7f0153556b80..7f625147b7fe 100644
> --- a/tools/testing/selftests/rseq/Makefile
> +++ b/tools/testing/selftests/rseq/Makefile
> @@ -1,13 +1,8 @@
> CFLAGS += -O2 -Wall -g -I./ -I../cpu-opv/ -I../../../../usr/include/
> -LDFLAGS += -lpthread
> +LDLIBS += -lpthread
> 
> -TESTS = basic_test basic_percpu_ops_test param_test
> -
> -all: $(TESTS)
> -%: %.c rseq.h rseq-*.h rseq.c ../cpu-opv/cpu-op.c ../cpu-opv/cpu-op.h
> -       $(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
> +TEST_GEN_PROGS = basic_test basic_percpu_ops_test param_test
> 
> include ../lib.mk
> 
> -clean:
> -       $(RM) $(TESTS)
> +$(TEST_GEN_PROGS): rseq.h rseq-*.h rseq.c ../cpu-opv/cpu-op.c
> ../cpu-opv/cpu-op.h

-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
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