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

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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:

  ~/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
--
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