[PATCH v2 0/6] kselftest improvement and cleanup

[PATCH v2 0/6] kselftest improvement and cleanup

[Bamvor Jian Zhang]

This is my second attempt for improving the kselftest for arm/arm64
architecture. Eventually, we hope we could build(in an cross compile
environment) and run all the kselftest cases automatically(successful
of courses). The first version is here[1].

In this series, I try to make all the testcases compiling and
installation successful.

The status of these series patches as follows:

c 9fae100 selftests: breakpoints: fix installing error on the architecture except x86
c a7d0f07 selftests: check before install
a 7824b26 selftests: rename jump label to static_keys
a f93be76 selftests: only compile userfaultfd for x86 and powperpc
  8ec8722 selftests: mqueue: allow extra cflags
  d5babcb selftests: mqueue: simpification the Makefile
  e2fe790 selftests: change install command to rsync
  2becd5b selftests: exec: simpification the Makefile

"c" means committed by Shuah Khan <shuahkh@osg.samsung.com>
"a" means acked by Shuah Khan <shuahkh@osg.samsung.com>

[1] http://www.spinics.net/lists/kernel/msg2056987.html

Bamvor Jian Zhang (6):
  selftests: rename jump label to static_keys
  selftests: only compile userfaultfd for x86 and powperpc
  selftests: mqueue: allow extra cflags
  selftests: mqueue: simpification the Makefile
  selftests: change install command to rsync
  selftests: exec: simpification the Makefile

 tools/testing/selftests/Makefile        |  2 +-
 tools/testing/selftests/exec/Makefile   |  4 +---
 tools/testing/selftests/ftrace/Makefile |  2 +-
 tools/testing/selftests/lib.mk          | 11 ++++-------
 tools/testing/selftests/mqueue/Makefile |  7 +++----
 tools/testing/selftests/vm/Makefile     | 12 ++++++++++++
 6 files changed, 22 insertions(+), 16 deletions(-)

-- 
2.1.4

[PATCH v2 1/6] selftests: rename jump label to static_keys

[Bamvor Jian Zhang]

commit "2bf9e0a locking/static_keys: Provide a selftest" rename
jump_label directory to static_keys.

Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>
---
 tools/testing/selftests/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index ac40ec9..8922c21 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -17,12 +17,12 @@ TARGETS += powerpc
 TARGETS += ptrace
 TARGETS += seccomp
 TARGETS += size
+TARGETS += static_keys
 TARGETS += sysctl
 ifneq (1, $(quicktest))
 TARGETS += timers
 endif
 TARGETS += user
-TARGETS += jumplabel
 TARGETS += vm
 TARGETS += x86
 TARGETS += zram
-- 
2.1.4

Re: [PATCH v2 1/6] selftests: rename jump label to static_keys

[Michael Ellerman]

On Mon, 2015-09-07 at 22:04 +0800, Bamvor Jian Zhang wrote:
> commit "2bf9e0a locking/static_keys: Provide a selftest" rename
                                                                 ^
								 d
> jump_label directory to static_keys.

... "and failed to update the Makefile, causing the selftests build to fail.
This commit fixes it by updating the Makefile with the new name and also moves
the entry into the correct position to keep the list alphabetically sorted."

Also the proper syntax for quoting a commit is:

Commit 2bf9e0ab08c6 ("locking/static_keys: Provide a selftest")

And ideally you also include a line saying:

Fixes: 2bf9e0ab08c6 ("locking/static_keys: Provide a selftest")

> Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>
> ---
>  tools/testing/selftests/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
> index ac40ec9..8922c21 100644
> --- a/tools/testing/selftests/Makefile
> +++ b/tools/testing/selftests/Makefile
> @@ -17,12 +17,12 @@ TARGETS += powerpc
>  TARGETS += ptrace
>  TARGETS += seccomp
>  TARGETS += size
> +TARGETS += static_keys
>  TARGETS += sysctl
>  ifneq (1, $(quicktest))
>  TARGETS += timers
>  endif
>  TARGETS += user
> -TARGETS += jumplabel
>  TARGETS += vm
>  TARGETS += x86
>  TARGETS += zram


Otherwise:

Acked-by: Michael Ellerman <mpe@ellerman.id.au>

cheers

[PATCH v2 2/6] selftests: only compile userfaultfd for x86 and powperpc

[Bamvor Jian Zhang]

Check it before compiling to avoid the failure of building and
installation.

Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>
---

 tools/testing/selftests/vm/Makefile | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/tools/testing/selftests/vm/Makefile b/tools/testing/selftests/vm/Makefile
index 1dacac8..925a82d 100644
--- a/tools/testing/selftests/vm/Makefile
+++ b/tools/testing/selftests/vm/Makefile
@@ -1,5 +1,15 @@
 # Makefile for vm selftests
 
+uname_M := $(shell uname -m 2>/dev/null || echo not)
+ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/ -e s/ppc.*/powerpc/)
+
+ifeq ($(ARCH),powerpc)
+support_userfaultfd = yes
+endif
+ifeq ($(ARCH),x86)
+support_userfaultfd = yes
+endif
+
 CFLAGS = -Wall -I ../../../../usr/include $(EXTRA_CFLAGS)
 BINARIES = compaction_test
 BINARIES += hugepage-mmap
@@ -9,7 +19,9 @@ BINARIES += mlock2-tests
 BINARIES += on-fault-limit
 BINARIES += thuge-gen
 BINARIES += transhuge-stress
+ifdef support_userfaultfd
 BINARIES += userfaultfd
+endif
 
 all: $(BINARIES)
 %: %.c
-- 
2.1.4

Re: [PATCH v2 2/6] selftests: only compile userfaultfd for x86 and powperpc

[Michael Ellerman]

On Mon, 2015-09-07 at 22:04 +0800, Bamvor Jian Zhang wrote:
> Check it before compiling to avoid the failure of building and
> installation.

I asked you not to do this.

  http://lkml.kernel.org/r/1440991580.5735.4.camel@ellerman.id.au

Can you tell me why you ignored my comments?

cheers

[PATCH v2 3/6] selftests: mqueue: allow extra cflags

[Bamvor Jian Zhang]

change from = to += in order to pass the proper headers and librareis
(popt.h and libpopt.so) in order to build successful in cross
compiling.

Suggested-by: Michael Ellermani <mpe@ellerman.id.au>
Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>
---
 tools/testing/selftests/mqueue/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/mqueue/Makefile b/tools/testing/selftests/mqueue/Makefile
index 0e3b41e..ca8327f 100644
--- a/tools/testing/selftests/mqueue/Makefile
+++ b/tools/testing/selftests/mqueue/Makefile
@@ -1,4 +1,4 @@
-CFLAGS = -O2
+CFLAGS += -O2
 
 all:
 	$(CC) $(CFLAGS) mq_open_tests.c -o mq_open_tests -lrt
-- 
2.1.4

Re: [PATCH v2 3/6] selftests: mqueue: allow extra cflags

[Michael Ellerman]

On Mon, 2015-09-07 at 22:04 +0800, Bamvor Jian Zhang wrote:
> change from = to += in order to pass the proper headers and librareis

Please start your changelogs with a Capital letter, they are supposed to be
proper English sentences.

> (popt.h and libpopt.so) in order to build successful in cross
> compiling.

Yeah. More generally it allows the user to pass whatever CFLAGS they wish,
which is a good feature.

Acked-by: Michael Ellerman <mpe@ellerman.id.au>

cheers

[PATCH v2 4/6] selftests: mqueue: simpification the Makefile

[Bamvor Jian Zhang]

Suggested-by: Michael Ellermani <mpe@ellerman.id.au>
Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>
---
 tools/testing/selftests/mqueue/Makefile | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/mqueue/Makefile b/tools/testing/selftests/mqueue/Makefile
index ca8327f..9f51aaa 100644
--- a/tools/testing/selftests/mqueue/Makefile
+++ b/tools/testing/selftests/mqueue/Makefile
@@ -1,8 +1,7 @@
 CFLAGS += -O2
+LDLIBS = -lrt -lpthread -lpopt
 
-all:
-	$(CC) $(CFLAGS) mq_open_tests.c -o mq_open_tests -lrt
-	$(CC) $(CFLAGS) -o mq_perf_tests mq_perf_tests.c -lrt -lpthread -lpopt
+all: mq_open_tests mq_perf_tests
 
 include ../lib.mk
 
-- 
2.1.4

Re: [PATCH v2 4/6] selftests: mqueue: simpification the Makefile

[Michael Ellerman]

On Mon, 2015-09-07 at 22:04 +0800, Bamvor Jian Zhang wrote:

> selftests: mqueue: simpification the Makefile

This should be:

selftests/mqueue: Simplify the Makefile


And please write a change log, even for simple commits like this.

You can say something like:

  Use make's implict rule for building simple C programs.

> Suggested-by: Michael Ellermani <mpe@ellerman.id.au>
> Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>
> ---
>  tools/testing/selftests/mqueue/Makefile | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/tools/testing/selftests/mqueue/Makefile b/tools/testing/selftests/mqueue/Makefile
> index ca8327f..9f51aaa 100644
> --- a/tools/testing/selftests/mqueue/Makefile
> +++ b/tools/testing/selftests/mqueue/Makefile
> @@ -1,8 +1,7 @@
>  CFLAGS += -O2
> +LDLIBS = -lrt -lpthread -lpopt

Please move the TEST_PROGS line here:

TEST_PROGS := mq_open_tests mq_perf_tests

> -all:
> -	$(CC) $(CFLAGS) mq_open_tests.c -o mq_open_tests -lrt
> -	$(CC) $(CFLAGS) -o mq_perf_tests mq_perf_tests.c -lrt -lpthread -lpopt
> +all: mq_open_tests mq_perf_tests

So this can become:

all: $(TEST_PROGS)

>  
>  include ../lib.mk


cheers

[PATCH v2 5/6] selftests: change install command to rsync

[Bamvor Jian Zhang]

The command of install could not handle the special files in exec
testcases, change the default rule to rsync to fix this.
The result of installation is unchanged after this commit.

Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>
---
 tools/testing/selftests/ftrace/Makefile |  2 +-
 tools/testing/selftests/lib.mk          | 11 ++++-------
 2 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/tools/testing/selftests/ftrace/Makefile b/tools/testing/selftests/ftrace/Makefile
index 0acbeca..4e6ed13 100644
--- a/tools/testing/selftests/ftrace/Makefile
+++ b/tools/testing/selftests/ftrace/Makefile
@@ -1,7 +1,7 @@
 all:
 
 TEST_PROGS := ftracetest
-TEST_DIRS := test.d/
+TEST_DIRS := test.d
 
 include ../lib.mk
 
diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
index 97f1c67..50a93f5 100644
--- a/tools/testing/selftests/lib.mk
+++ b/tools/testing/selftests/lib.mk
@@ -12,13 +12,10 @@ run_tests: all
 	$(RUN_TESTS)
 
 define INSTALL_RULE
-	@if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then			\
-		mkdir -p $(INSTALL_PATH);								\
-		for TEST_DIR in $(TEST_DIRS); do							\
-			cp -r $$TEST_DIR $(INSTALL_PATH);						\
-		done;											\
-		echo "install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES)";	\
-		install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES);		\
+	@if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then					\
+		mkdir -p ${INSTALL_PATH};										\
+		echo "rsync -a $(TEST_DIRS) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(INSTALL_PATH)/";	\
+		rsync -a $(TEST_DIRS) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(INSTALL_PATH)/;		\
 	fi
 endef
 
-- 
2.1.4

Re: [PATCH v2 5/6] selftests: change install command to rsync

[Michael Ellerman]

On Mon, 2015-09-07 at 22:04 +0800, Bamvor Jian Zhang wrote:
> The command of install could not handle the special files in exec
> testcases, change the default rule to rsync to fix this.
> The result of installation is unchanged after this commit.
> 
> Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
> Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>

Ah OK, I did suggest it. You never replied to my mail suggesting it though.

I assume you tested it and it worked for all cases?

> diff --git a/tools/testing/selftests/ftrace/Makefile b/tools/testing/selftests/ftrace/Makefile
> index 0acbeca..4e6ed13 100644
> --- a/tools/testing/selftests/ftrace/Makefile
> +++ b/tools/testing/selftests/ftrace/Makefile
> @@ -1,7 +1,7 @@
>  all:
>  
>  TEST_PROGS := ftracetest
> -TEST_DIRS := test.d/
> +TEST_DIRS := test.d
>  
>  include ../lib.mk
>  
> diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
> index 97f1c67..50a93f5 100644
> --- a/tools/testing/selftests/lib.mk
> +++ b/tools/testing/selftests/lib.mk
> @@ -12,13 +12,10 @@ run_tests: all
>  	$(RUN_TESTS)
>  
>  define INSTALL_RULE
> -	@if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then			\
> -		mkdir -p $(INSTALL_PATH);								\
> -		for TEST_DIR in $(TEST_DIRS); do							\
> -			cp -r $$TEST_DIR $(INSTALL_PATH);						\
> -		done;											\
> -		echo "install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES)";	\
> -		install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES);		\
> +	@if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then					\
> +		mkdir -p ${INSTALL_PATH};										\
> +		echo "rsync -a $(TEST_DIRS) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(INSTALL_PATH)/";	\

What is the echo for?

> +		rsync -a $(TEST_DIRS) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(INSTALL_PATH)/;		\
>  	fi
>  endef
>  

cheers

Re: [PATCH v2 5/6] selftests: change install command to rsync

[Bamvor Zhang Jian]

Hi, Michael

On 09/08/2015 01:52 PM, Michael Ellerman wrote:
> On Mon, 2015-09-07 at 22:04 +0800, Bamvor Jian Zhang wrote:
>> The command of install could not handle the special files in exec
>> testcases, change the default rule to rsync to fix this.
>> The result of installation is unchanged after this commit.
>>
>> Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
>> Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>
> 
> Ah OK, I did suggest it. You never replied to my mail suggesting it though.
> 
> I assume you tested it and it worked for all cases?
yes, I compare the installed file.
> 
>> diff --git a/tools/testing/selftests/ftrace/Makefile b/tools/testing/selftests/ftrace/Makefile
>> index 0acbeca..4e6ed13 100644
>> --- a/tools/testing/selftests/ftrace/Makefile
>> +++ b/tools/testing/selftests/ftrace/Makefile
>> @@ -1,7 +1,7 @@
>>  all:
>>  
>>  TEST_PROGS := ftracetest
>> -TEST_DIRS := test.d/
>> +TEST_DIRS := test.d
>>  
>>  include ../lib.mk
>>  
>> diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
>> index 97f1c67..50a93f5 100644
>> --- a/tools/testing/selftests/lib.mk
>> +++ b/tools/testing/selftests/lib.mk
>> @@ -12,13 +12,10 @@ run_tests: all
>>  	$(RUN_TESTS)
>>  
>>  define INSTALL_RULE
>> -	@if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then			\
>> -		mkdir -p $(INSTALL_PATH);								\
>> -		for TEST_DIR in $(TEST_DIRS); do							\
>> -			cp -r $$TEST_DIR $(INSTALL_PATH);						\
>> -		done;											\
>> -		echo "install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES)";	\
>> -		install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES);		\
>> +	@if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then					\
>> +		mkdir -p ${INSTALL_PATH};										\
>> +		echo "rsync -a $(TEST_DIRS) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(INSTALL_PATH)/";	\
> 
> What is the echo for?
For output the following rsync command during building.
Do you mean there is some better way to do it?

regards

bamvor
> 
>> +		rsync -a $(TEST_DIRS) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(INSTALL_PATH)/;		\
>>  	fi
>>  endef
>>  
> 
> cheers
> 
> 

Re: [PATCH v2 5/6] selftests: change install command to rsync

[Michael Ellerman]

On Tue, 2015-09-08 at 17:25 +0800, Bamvor Zhang Jian wrote:
> Hi, Michael
> 
> On 09/08/2015 01:52 PM, Michael Ellerman wrote:
> > On Mon, 2015-09-07 at 22:04 +0800, Bamvor Jian Zhang wrote:
> >> The command of install could not handle the special files in exec
> >> testcases, change the default rule to rsync to fix this.
> >> The result of installation is unchanged after this commit.
> >>
> >> Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
> >> Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>
> > 
> > Ah OK, I did suggest it. You never replied to my mail suggesting it though.
> > 
> > I assume you tested it and it worked for all cases?

> yes, I compare the installed file.

OK, thanks.

> >> diff --git a/tools/testing/selftests/ftrace/Makefile b/tools/testing/selftests/ftrace/Makefile
> >> index 0acbeca..4e6ed13 100644
> >> --- a/tools/testing/selftests/ftrace/Makefile
> >> +++ b/tools/testing/selftests/ftrace/Makefile
> >> @@ -1,7 +1,7 @@
> >>  all:
> >>  
> >>  TEST_PROGS := ftracetest
> >> -TEST_DIRS := test.d/
> >> +TEST_DIRS := test.d
> >>  
> >>  include ../lib.mk
> >>  
> >> diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
> >> index 97f1c67..50a93f5 100644
> >> --- a/tools/testing/selftests/lib.mk
> >> +++ b/tools/testing/selftests/lib.mk
> >> @@ -12,13 +12,10 @@ run_tests: all
> >>  	$(RUN_TESTS)
> >>  
> >>  define INSTALL_RULE
> >> -	@if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then			\
> >> -		mkdir -p $(INSTALL_PATH);								\
> >> -		for TEST_DIR in $(TEST_DIRS); do							\
> >> -			cp -r $$TEST_DIR $(INSTALL_PATH);						\
> >> -		done;											\
> >> -		echo "install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES)";	\
> >> -		install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES);		\
> >> +	@if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then					\
> >> +		mkdir -p ${INSTALL_PATH};										\
> >> +		echo "rsync -a $(TEST_DIRS) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(INSTALL_PATH)/";	\
> > 
> > What is the echo for?

> For output the following rsync command during building.
> Do you mean there is some better way to do it?

No, I mean we didn't used to do that, until your recent patch. It's just for
logging?

cheers

Re: [PATCH v2 5/6] selftests: change install command to rsync

[Bamvor Zhang Jian]

Hi, Michael

On 09/08/2015 05:39 PM, Michael Ellerman wrote:
> On Tue, 2015-09-08 at 17:25 +0800, Bamvor Zhang Jian wrote:
>> Hi, Michael
>>
>> On 09/08/2015 01:52 PM, Michael Ellerman wrote:
>>> On Mon, 2015-09-07 at 22:04 +0800, Bamvor Jian Zhang wrote:
>>>> The command of install could not handle the special files in exec
>>>> testcases, change the default rule to rsync to fix this.
>>>> The result of installation is unchanged after this commit.
>>>>
>>>> Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
>>>> Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>
>>>
>>> Ah OK, I did suggest it. You never replied to my mail suggesting it though.
>>>
>>> I assume you tested it and it worked for all cases?
> 
>> yes, I compare the installed file.
> 
> OK, thanks.
> 
>>>> diff --git a/tools/testing/selftests/ftrace/Makefile b/tools/testing/selftests/ftrace/Makefile
>>>> index 0acbeca..4e6ed13 100644
>>>> --- a/tools/testing/selftests/ftrace/Makefile
>>>> +++ b/tools/testing/selftests/ftrace/Makefile
>>>> @@ -1,7 +1,7 @@
>>>>  all:
>>>>  
>>>>  TEST_PROGS := ftracetest
>>>> -TEST_DIRS := test.d/
>>>> +TEST_DIRS := test.d
>>>>  
>>>>  include ../lib.mk
>>>>  
>>>> diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
>>>> index 97f1c67..50a93f5 100644
>>>> --- a/tools/testing/selftests/lib.mk
>>>> +++ b/tools/testing/selftests/lib.mk
>>>> @@ -12,13 +12,10 @@ run_tests: all
>>>>  	$(RUN_TESTS)
>>>>  
>>>>  define INSTALL_RULE
>>>> -	@if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then			\
>>>> -		mkdir -p $(INSTALL_PATH);								\
>>>> -		for TEST_DIR in $(TEST_DIRS); do							\
>>>> -			cp -r $$TEST_DIR $(INSTALL_PATH);						\
>>>> -		done;											\
>>>> -		echo "install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES)";	\
>>>> -		install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES);		\
>>>> +	@if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then					\
>>>> +		mkdir -p ${INSTALL_PATH};										\
>>>> +		echo "rsync -a $(TEST_DIRS) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(INSTALL_PATH)/";	\
>>>
>>> What is the echo for?
> 
>> For output the following rsync command during building.
>> Do you mean there is some better way to do it?
> 
> No, I mean we didn't used to do that, until your recent patch. It's just for
> logging?
No, It will print the installed file before my patch("a7d0f07 selftests: check before install").

regards

bamvor
> 
> cheers
> 
> 

[PATCH v2 6/6] selftests: exec: simpification the Makefile

[Bamvor Jian Zhang]

With the previous patch, the installation method change from install
to rsync. There is not no need to create subdir during test, the
default RUN_TESTS is enough.

This patch implicitly revert commit 84cbd9e4 ("selftests/exec: do not
install subdir as it is already created").

Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>
---
 tools/testing/selftests/exec/Makefile | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/tools/testing/selftests/exec/Makefile b/tools/testing/selftests/exec/Makefile
index 6b76bfd..4e400eb 100644
--- a/tools/testing/selftests/exec/Makefile
+++ b/tools/testing/selftests/exec/Makefile
@@ -1,6 +1,6 @@
 CFLAGS = -Wall
 BINARIES = execveat
-DEPS = execveat.symlink execveat.denatured script
+DEPS = execveat.symlink execveat.denatured script subdir
 all: $(BINARIES) $(DEPS)
 
 subdir:
@@ -22,7 +22,5 @@ TEST_FILES := $(DEPS)
 
 include ../lib.mk
 
-override EMIT_TESTS := echo "mkdir -p subdir; (./execveat && echo \"selftests: execveat [PASS]\") || echo \"selftests: execveat [FAIL]\""
-
 clean:
 	rm -rf $(BINARIES) $(DEPS) subdir.moved execveat.moved xxxxx*
-- 
2.1.4

Re: [PATCH v2 6/6] selftests: exec: simpification the Makefile

[Michael Ellerman]

On Mon, 2015-09-07 at 22:04 +0800, Bamvor Jian Zhang wrote:

> selftests: exec: simpification the Makefile

Please give us a better subject, ie something like:

selftests/exec: Revert to default emit rule

> With the previous patch, the installation method change from install
> to rsync. There is not no need to create subdir during test, the
                     ^
		     one too many "not"

> default RUN_TESTS is enough.
          ^
          EMIT_TESTS

> 
> This patch implicitly revert commit 84cbd9e4 ("selftests/exec: do not
             ^
	     "essentially" would be more accurate I think

> install subdir as it is already created").


cheers