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Message-ID: <4243a5e3-a971-387d-e492-262d76db4540@osg.samsung.com>
Date: Tue, 21 Mar 2017 12:02:57 -0600
From: Shuah Khan <shuahkh@....samsung.com>
To: Bamvor Zhang Jian <bamvor.zhangjian@...aro.org>
Cc: Michael Ellerman <mpe@...erman.id.au>,
Andy Lutomirski <luto@...capital.net>,
"Zhangjian (Bamvor)" <bamvor.zhangjian@...wei.com>,
Linux API <linux-api@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Kevin Hilman <khilman@...nel.org>,
Mark Brown <broonie@...nel.org>,
shuah Khan <shuahkh@....samsung.com>
Subject: Re: [PATCH v2 6/6] selftests: enable O and KBUILD_OUTPUT
On 03/21/2017 10:09 AM, Bamvor Zhang Jian wrote:
> Hi, Shuah
>
> On 21 March 2017 at 21:54, Shuah Khan <shuahkh@....samsung.com> wrote:
>> On 03/21/2017 03:00 AM, Bamvor Zhang Jian wrote:
>>> Hi,
>>>
>>> On 21 March 2017 at 16:35, Michael Ellerman <mpe@...erman.id.au> wrote:
>>>> Andy Lutomirski <luto@...capital.net> writes:
>>>>
>>>>> On Tue, Nov 29, 2016 at 3:55 AM, <bamvor.zhangjian@...wei.com> wrote:
>>>>>> From: Bamvor Jian Zhang <bamvor.zhangjian@...aro.org>
>>>>>>
>>>>>> Enable O and KBUILD_OUTPUT for kselftest. User could compile kselftest
>>>>>> to another directory by passing O or KBUILD_OUTPUT. And O is high
>>>>>> priority than KBUILD_OUTPUT.
>>>>>
>>>>> Sorry for noticing this late, but this patch
>>>>> (a8ba798bc8ec663cf02e80b0dd770324de9bafd9) is really annoying for
>>>>> people who *don't* use these fancy options:
>>>>
>>>> Yeah sorry, it wasn't quite ready to go in.
>>
>> Bamovar,
>>
>> Please give me heads up and ask me to not commit the patch,
>> if you think it isn't ready.
>>
>>>>
>>>>> $ make -C tools/testing/selftests/x86 ldt_gdt_32
>>>>> make: Entering directory '/home/luto/apps/linux/tools/testing/selftests/x86'
>>>>> Makefile:44: warning: overriding recipe for target 'clean'
>>>>> ../lib.mk:55: warning: ignoring old recipe for target 'clean'
>>>>> make: *** No rule to make target 'ldt_gdt_32'. Stop.
>>>>> make: Leaving directory '/home/luto/apps/linux/tools/testing/selftests/x86'
>>>>>
>>>>> Is there any way that you can make this work again?
>>>>
>>>> There obviously is *a* way, but I'm not sure there's a simple and
>>>> obviously correct way that is an easy fix for 4.11.
>>>>
>>>> I see at least 18 Makefile's in tools/testing/selftests that use
>>>> $(OUTPUT)/, which would all need to be updated at least to use $(OUTPUT)
>>>> (no trailing slash), and then some other changes to not propagate OUTPUT
>>>> when the user didn't specify it. But hopefully someone will prove me
>>>> wrong.
>>> I also look at this issue. Originally, I use OUTPUT without slash in my
>>> patch. People argue that it is not very clear. So, I add slash in curent
>>> version.
>>>>
>>>> As a (poor) alternative you can do:
>>>>
>>>> $ cd tools/testing/selftests/x86; make $PWD/ldt_gdt_32
>>>>
>>>> or just:
>>>>
>>>> $ make -C tools/testing/selftests/x86
>>>>
>>>> cheers
>>> Do we really need "make -C tools/testing/selftests/x86 ldt_gdt_32"?
>>> It is useful but it will skip the top level Makefile of selftests.
>>
>> Being able to build individual tests is an important use-case. Please
>> see kselftest.txt under Documentation directory for all the use-cases
>> and new patches shouldn't break these use-cases.
> Understand. I am sorry I do not know this use case before. And I read
> kselftest.txt again, I do not find this use case is mentioned. So,
> I add a few lines in kselftest.txt to avoid break this use case in future.
> Is there any other use cases I should test?
Running an individual test as in the example below should be allowed.
make -C tools/testing/selftests hotplug
Also individual tests are often run from the test director. For example,
cd tools/testing/selftests/x86; make
thanks,
-- Shuah
>>
>> Breaking these use-cases is a regression and we have to fix it
> Here is a fix. I could build individual test case in x86 and build the whole
> x86 test cases successful respectively. And I do a quick test for all the
> subsets. Please review the patch if it is make sense to you and Michael.
> At the same time, I am buildind and testing all the testcases.
>
> Michael: could you please do me a favor to test the powerpc part? Thanks.
>
> From 21b17710d23783c5148303e5628b52d281e6f62b Mon Sep 17 00:00:00 2001
> From: Bamvor Jian Zhang <bamvor.zhangjian@...aro.org>
> Date: Tue, 21 Mar 2017 22:38:01 +0800
> Subject: [PATCH] selftests: fix the broken individual test for x86
>
> Andy Lutomirski report that build individual testcase in x86 is broken:
>
> $ make -C tools/testing/selftests/x86 ldt_gdt_32
> make: Entering directory '/home/luto/apps/linux/tools/testing/selftests/x86'
> Makefile:44: warning: overriding recipe for target 'clean'
> ../lib.mk:55: warning: ignoring old recipe for target 'clean'
> make: *** No rule to make target 'ldt_gdt_32'. Stop.
> make: Leaving directory '/home/luto/apps/linux/tools/testing/selftests/x86'
>
> This patch fix this issue by removing the slash after OUTPUT.
> And also mention this use case in Documentation/kselftests.txt
>
> Reported-by: Andy Lutomirski <luto@...capital.net>
> Suggested-by: Michael Ellerman <mpe@...erman.id.au>
> Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@...aro.org>
> ---
> Documentation/kselftest.txt | 5 +++++
> tools/testing/selftests/Makefile | 16 ++++++++--------
> tools/testing/selftests/exec/Makefile | 10 +++++-----
> tools/testing/selftests/ftrace/Makefile | 2 +-
> tools/testing/selftests/futex/Makefile | 12 ++++++------
> tools/testing/selftests/kcmp/Makefile | 2 +-
> tools/testing/selftests/lib.mk | 10 +++++-----
> tools/testing/selftests/powerpc/Makefile | 18 +++++++++---------
> tools/testing/selftests/powerpc/benchmarks/Makefile | 6 +++---
> tools/testing/selftests/powerpc/copyloops/Makefile | 8 ++++----
> tools/testing/selftests/powerpc/dscr/Makefile | 2 +-
> tools/testing/selftests/powerpc/math/Makefile | 16 ++++++++--------
> tools/testing/selftests/powerpc/mm/Makefile | 4 ++--
> tools/testing/selftests/powerpc/pmu/Makefile | 16 ++++++++--------
> tools/testing/selftests/powerpc/pmu/ebb/Makefile | 4 ++--
> tools/testing/selftests/powerpc/switch_endian/Makefile | 8 ++++----
> tools/testing/selftests/powerpc/tm/Makefile | 8 ++++----
> tools/testing/selftests/vm/Makefile | 8 ++++----
> tools/testing/selftests/x86/Makefile | 18 +++++++++---------
> 19 files changed, 89 insertions(+), 84 deletions(-)
>
> diff --git a/Documentation/kselftest.txt b/Documentation/kselftest.txt
> index 5bd5903..6197e94 100644
> --- a/Documentation/kselftest.txt
> +++ b/Documentation/kselftest.txt
> @@ -42,6 +42,11 @@ You can specify multiple tests to build and run:
> See the top-level tools/testing/selftests/Makefile for the list of all
> possible targets.
>
> +Building individual test case of a subset
> +=========================================
> +You could build the individual test case in subset if subset supported:
> + $ make -C tools/testing/selftests/x86 ldt_gdt_32
> +
>
> Running the full range hotplug selftests
> ========================================
> diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
> index e8b79a7..6cc93c1 100644
> --- a/tools/testing/selftests/Makefile
> +++ b/tools/testing/selftests/Makefile
> @@ -64,31 +64,31 @@ all:
> for TARGET in $(TARGETS); do \
> BUILD_TARGET=$$BUILD/$$TARGET; \
> mkdir $$BUILD_TARGET -p; \
> - make OUTPUT=$$BUILD_TARGET -C $$TARGET;\
> + make OUTPUT=$$BUILD_TARGET/ -C $$TARGET;\
> done;
>
> run_tests: all
> for TARGET in $(TARGETS); do \
> BUILD_TARGET=$$BUILD/$$TARGET; \
> - make OUTPUT=$$BUILD_TARGET -C $$TARGET run_tests;\
> + make OUTPUT=$$BUILD_TARGET/ -C $$TARGET run_tests;\
> done;
>
> hotplug:
> for TARGET in $(TARGETS_HOTPLUG); do \
> BUILD_TARGET=$$BUILD/$$TARGET; \
> - make OUTPUT=$$BUILD_TARGET -C $$TARGET;\
> + make OUTPUT=$$BUILD_TARGET/ -C $$TARGET;\
> done;
>
> run_hotplug: hotplug
> for TARGET in $(TARGETS_HOTPLUG); do \
> BUILD_TARGET=$$BUILD/$$TARGET; \
> - make OUTPUT=$$BUILD_TARGET -C $$TARGET run_full_test;\
> + make OUTPUT=$$BUILD_TARGET/ -C $$TARGET run_full_test;\
> done;
>
> clean_hotplug:
> for TARGET in $(TARGETS_HOTPLUG); do \
> BUILD_TARGET=$$BUILD/$$TARGET; \
> - make OUTPUT=$$BUILD_TARGET -C $$TARGET clean;\
> + make OUTPUT=$$BUILD_TARGET/ -C $$TARGET clean;\
> done;
>
> run_pstore_crash:
> @@ -104,7 +104,7 @@ ifdef INSTALL_PATH
> mkdir -p $(INSTALL_PATH)
> for TARGET in $(TARGETS); do \
> BUILD_TARGET=$$BUILD/$$TARGET; \
> - make OUTPUT=$$BUILD_TARGET -C $$TARGET
> INSTALL_PATH=$(INSTALL_PATH)/$$TARGET install; \
> + make OUTPUT=$$BUILD_TARGET/ -C $$TARGET
> INSTALL_PATH=$(INSTALL_PATH)/$$TARGET install; \
> done;
>
> @# Ask all targets to emit their test scripts
> @@ -117,7 +117,7 @@ ifdef INSTALL_PATH
> echo "echo ; echo Running tests in $$TARGET" >> $(ALL_SCRIPT); \
> echo "echo ========================================" >> $(ALL_SCRIPT); \
> echo "cd $$TARGET" >> $(ALL_SCRIPT); \
> - make -s --no-print-directory OUTPUT=$$BUILD_TARGET -C $$TARGET
> emit_tests >> $(ALL_SCRIPT); \
> + make -s --no-print-directory OUTPUT=$$BUILD_TARGET/ -C $$TARGET
> emit_tests >> $(ALL_SCRIPT); \
> echo "cd \$$ROOT" >> $(ALL_SCRIPT); \
> done;
>
> @@ -129,7 +129,7 @@ endif
> clean:
> for TARGET in $(TARGETS); do \
> BUILD_TARGET=$$BUILD/$$TARGET; \
> - make OUTPUT=$$BUILD_TARGET -C $$TARGET clean;\
> + make OUTPUT=$$BUILD_TARGET/ -C $$TARGET clean;\
> done;
>
> .PHONY: install
> diff --git a/tools/testing/selftests/exec/Makefile
> b/tools/testing/selftests/exec/Makefile
> index 2e13035..2f3b200 100644
> --- a/tools/testing/selftests/exec/Makefile
> +++ b/tools/testing/selftests/exec/Makefile
> @@ -5,19 +5,19 @@ TEST_GEN_FILES := execveat.symlink
> execveat.denatured script subdir
> # Makefile is a run-time dependency, since it's accessed by the execveat test
> TEST_FILES := Makefile
>
> -EXTRA_CLEAN := $(OUTPUT)/subdir.moved $(OUTPUT)/execveat.moved $(OUTPUT)/xxxxx*
> +EXTRA_CLEAN := $(OUTPUT)subdir.moved $(OUTPUT)execveat.moved $(OUTPUT)xxxxx*
>
> include ../lib.mk
>
> -$(OUTPUT)/subdir:
> +$(OUTPUT)subdir:
> mkdir -p $@
> -$(OUTPUT)/script:
> +$(OUTPUT)script:
> echo '#!/bin/sh' > $@
> echo 'exit $$*' >> $@
> chmod +x $@
> -$(OUTPUT)/execveat.symlink: $(OUTPUT)/execveat
> +$(OUTPUT)execveat.symlink: $(OUTPUT)execveat
> cd $(OUTPUT) && ln -s -f $(shell basename $<) $(shell basename $@)
> -$(OUTPUT)/execveat.denatured: $(OUTPUT)/execveat
> +$(OUTPUT)execveat.denatured: $(OUTPUT)execveat
> cp $< $@
> chmod -x $@
>
> diff --git a/tools/testing/selftests/ftrace/Makefile
> b/tools/testing/selftests/ftrace/Makefile
> index a8a5e21..33bb29b 100644
> --- a/tools/testing/selftests/ftrace/Makefile
> +++ b/tools/testing/selftests/ftrace/Makefile
> @@ -2,6 +2,6 @@ all:
>
> TEST_PROGS := ftracetest
> TEST_FILES := test.d
> -EXTRA_CLEAN := $(OUTPUT)/logs/*
> +EXTRA_CLEAN := $(OUTPUT)logs/*
>
> include ../lib.mk
> diff --git a/tools/testing/selftests/futex/Makefile
> b/tools/testing/selftests/futex/Makefile
> index 653c5cd..11c6c49 100644
> --- a/tools/testing/selftests/futex/Makefile
> +++ b/tools/testing/selftests/futex/Makefile
> @@ -8,9 +8,9 @@ include ../lib.mk
>
> all:
> for DIR in $(SUBDIRS); do \
> - BUILD_TARGET=$$OUTPUT/$$DIR; \
> + BUILD_TARGET=$$OUTPUT$$DIR; \
> mkdir $$BUILD_TARGET -p; \
> - make OUTPUT=$$BUILD_TARGET -C $$DIR $@;\
> + make OUTPUT=$$BUILD_TARGET/ -C $$DIR $@;\
> done
>
> override define RUN_TESTS
> @@ -22,9 +22,9 @@ override define INSTALL_RULE
> install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES)
>
> @for SUBDIR in $(SUBDIRS); do \
> - BUILD_TARGET=$$OUTPUT/$$SUBDIR; \
> + BUILD_TARGET=$$OUTPUT$$SUBDIR; \
> mkdir $$BUILD_TARGET -p; \
> - $(MAKE) OUTPUT=$$BUILD_TARGET -C $$SUBDIR
> INSTALL_PATH=$(INSTALL_PATH)/$$SUBDIR install; \
> + $(MAKE) OUTPUT=$$BUILD_TARGET/ -C $$SUBDIR
> INSTALL_PATH=$(INSTALL_PATH)/$$SUBDIR install; \
> done;
> endef
>
> @@ -34,7 +34,7 @@ endef
>
> clean:
> for DIR in $(SUBDIRS); do \
> - BUILD_TARGET=$$OUTPUT/$$DIR; \
> + BUILD_TARGET=$$OUTPUT$$DIR; \
> mkdir $$BUILD_TARGET -p; \
> - make OUTPUT=$$BUILD_TARGET -C $$DIR $@;\
> + make OUTPUT=$$BUILD_TARGET/ -C $$DIR $@;\
> done
> diff --git a/tools/testing/selftests/kcmp/Makefile
> b/tools/testing/selftests/kcmp/Makefile
> index 47aa988..0fb599e 100644
> --- a/tools/testing/selftests/kcmp/Makefile
> +++ b/tools/testing/selftests/kcmp/Makefile
> @@ -2,7 +2,7 @@ CFLAGS += -I../../../../usr/include/
>
> TEST_GEN_PROGS := kcmp_test
>
> -EXTRA_CLEAN := $(OUTPUT)/kcmp-test-file
> +EXTRA_CLEAN := $(OUTPUT)kcmp-test-file
>
> include ../lib.mk
>
> diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
> index ce96d80..716e920 100644
> --- a/tools/testing/selftests/lib.mk
> +++ b/tools/testing/selftests/lib.mk
> @@ -2,8 +2,8 @@
> # Makefile can operate with or without the kbuild infrastructure.
> CC := $(CROSS_COMPILE)gcc
>
> -TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS))
> -TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES))
> +TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)%,$(TEST_GEN_PROGS))
> +TEST_GEN_FILES := $(patsubst %,$(OUTPUT)%,$(TEST_GEN_FILES))
>
> all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
>
> @@ -50,13 +50,13 @@ emit_tests:
> clean:
> $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED)
> $(TEST_GEN_FILES) $(EXTRA_CLEAN)
>
> -$(OUTPUT)/%:%.c
> +$(OUTPUT)%:%.c
> $(LINK.c) $^ $(LDLIBS) -o $@
>
> -$(OUTPUT)/%.o:%.S
> +$(OUTPUT)%.o:%.S
> $(COMPILE.S) $^ -o $@
>
> -$(OUTPUT)/%:%.S
> +$(OUTPUT)%:%.S
> $(LINK.S) $^ $(LDLIBS) -o $@
>
> .PHONY: run_tests all clean install emit_tests
> diff --git a/tools/testing/selftests/powerpc/Makefile
> b/tools/testing/selftests/powerpc/Makefile
> index 1c5d057..1a1a33c 100644
> --- a/tools/testing/selftests/powerpc/Makefile
> +++ b/tools/testing/selftests/powerpc/Makefile
> @@ -34,35 +34,35 @@ endif
> all: $(SUB_DIRS)
>
> $(SUB_DIRS):
> - BUILD_TARGET=$$OUTPUT/$@; mkdir -p $$BUILD_TARGET; $(MAKE)
> OUTPUT=$$BUILD_TARGET -k -C $@ all
> + BUILD_TARGET=$$OUTPUT$@; mkdir -p $$BUILD_TARGET; $(MAKE)
> OUTPUT=$$BUILD_TARGET/ -k -C $@ all
>
> include ../lib.mk
>
> override define RUN_TESTS
> @for TARGET in $(SUB_DIRS); do \
> - BUILD_TARGET=$$OUTPUT/$$TARGET; \
> - $(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET run_tests;\
> + BUILD_TARGET=$$OUTPUT$$TARGET; \
> + $(MAKE) OUTPUT=$$BUILD_TARGET/ -C $$TARGET run_tests;\
> done;
> endef
>
> override define INSTALL_RULE
> @for TARGET in $(SUB_DIRS); do \
> - BUILD_TARGET=$$OUTPUT/$$TARGET; \
> - $(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET install;\
> + BUILD_TARGET=$$OUTPUT$$TARGET; \
> + $(MAKE) OUTPUT=$$BUILD_TARGET/ -C $$TARGET install;\
> done;
> endef
>
> override define EMIT_TESTS
> @for TARGET in $(SUB_DIRS); do \
> - BUILD_TARGET=$$OUTPUT/$$TARGET; \
> - $(MAKE) OUTPUT=$$BUILD_TARGET -s -C $$TARGET emit_tests;\
> + BUILD_TARGET=$$OUTPUT$$TARGET; \
> + $(MAKE) OUTPUT=$$BUILD_TARGET/ -s -C $$TARGET emit_tests;\
> done;
> endef
>
> clean:
> @for TARGET in $(SUB_DIRS); do \
> - BUILD_TARGET=$$OUTPUT/$$TARGET; \
> - $(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET clean; \
> + BUILD_TARGET=$$OUTPUT$$TARGET; \
> + $(MAKE) OUTPUT=$$BUILD_TARGET/ -C $$TARGET clean; \
> done;
> rm -f tags
>
> diff --git a/tools/testing/selftests/powerpc/benchmarks/Makefile
> b/tools/testing/selftests/powerpc/benchmarks/Makefile
> index fb96a89..c720780 100644
> --- a/tools/testing/selftests/powerpc/benchmarks/Makefile
> +++ b/tools/testing/selftests/powerpc/benchmarks/Makefile
> @@ -6,6 +6,6 @@ include ../../lib.mk
>
> $(TEST_GEN_PROGS): ../harness.c
>
> -$(OUTPUT)/context_switch: ../utils.c
> -$(OUTPUT)/context_switch: CFLAGS += -maltivec -mvsx -mabi=altivec
> -$(OUTPUT)/context_switch: LDLIBS += -lpthread
> +$(OUTPUT)context_switch: ../utils.c
> +$(OUTPUT)context_switch: CFLAGS += -maltivec -mvsx -mabi=altivec
> +$(OUTPUT)context_switch: LDLIBS += -lpthread
> diff --git a/tools/testing/selftests/powerpc/copyloops/Makefile
> b/tools/testing/selftests/powerpc/copyloops/Makefile
> index 681ab19..60e195a 100644
> --- a/tools/testing/selftests/powerpc/copyloops/Makefile
> +++ b/tools/testing/selftests/powerpc/copyloops/Makefile
> @@ -12,9 +12,9 @@ EXTRA_SOURCES := validate.c ../harness.c
>
> include ../../lib.mk
>
> -$(OUTPUT)/copyuser_64: CPPFLAGS += -D
> COPY_LOOP=test___copy_tofrom_user_base
> -$(OUTPUT)/copyuser_power7: CPPFLAGS += -D
> COPY_LOOP=test___copy_tofrom_user_power7
> -$(OUTPUT)/memcpy_64: CPPFLAGS += -D COPY_LOOP=test_memcpy
> -$(OUTPUT)/memcpy_power7: CPPFLAGS += -D COPY_LOOP=test_memcpy_power7
> +$(OUTPUT)copyuser_64: CPPFLAGS += -D COPY_LOOP=test___copy_tofrom_user_base
> +$(OUTPUT)copyuser_power7: CPPFLAGS += -D
> COPY_LOOP=test___copy_tofrom_user_power7
> +$(OUTPUT)memcpy_64: CPPFLAGS += -D COPY_LOOP=test_memcpy
> +$(OUTPUT)memcpy_power7: CPPFLAGS += -D COPY_LOOP=test_memcpy_power7
>
> $(TEST_GEN_PROGS): $(EXTRA_SOURCES)
> diff --git a/tools/testing/selftests/powerpc/dscr/Makefile
> b/tools/testing/selftests/powerpc/dscr/Makefile
> index c5639de..378f825 100644
> --- a/tools/testing/selftests/powerpc/dscr/Makefile
> +++ b/tools/testing/selftests/powerpc/dscr/Makefile
> @@ -4,6 +4,6 @@ TEST_GEN_PROGS := dscr_default_test dscr_explicit_test
> dscr_user_test \
>
> include ../../lib.mk
>
> -$(OUTPUT)/dscr_default_test: LDLIBS += -lpthread
> +$(OUTPUT)dscr_default_test: LDLIBS += -lpthread
>
> $(TEST_GEN_PROGS): ../harness.c
> diff --git a/tools/testing/selftests/powerpc/math/Makefile
> b/tools/testing/selftests/powerpc/math/Makefile
> index fa8bae9..73d6f52 100644
> --- a/tools/testing/selftests/powerpc/math/Makefile
> +++ b/tools/testing/selftests/powerpc/math/Makefile
> @@ -5,13 +5,13 @@ include ../../lib.mk
> $(TEST_GEN_PROGS): ../harness.c
> $(TEST_GEN_PROGS): CFLAGS += -O2 -g -pthread -m64 -maltivec
>
> -$(OUTPUT)/fpu_syscall: fpu_asm.S
> -$(OUTPUT)/fpu_preempt: fpu_asm.S
> -$(OUTPUT)/fpu_signal: fpu_asm.S
> +$(OUTPUT)fpu_syscall: fpu_asm.S
> +$(OUTPUT)fpu_preempt: fpu_asm.S
> +$(OUTPUT)fpu_signal: fpu_asm.S
>
> -$(OUTPUT)/vmx_syscall: vmx_asm.S
> -$(OUTPUT)/vmx_preempt: vmx_asm.S
> -$(OUTPUT)/vmx_signal: vmx_asm.S
> +$(OUTPUT)vmx_syscall: vmx_asm.S
> +$(OUTPUT)vmx_preempt: vmx_asm.S
> +$(OUTPUT)vmx_signal: vmx_asm.S
>
> -$(OUTPUT)/vsx_preempt: CFLAGS += -mvsx
> -$(OUTPUT)/vsx_preempt: vsx_asm.S
> +$(OUTPUT)vsx_preempt: CFLAGS += -mvsx
> +$(OUTPUT)vsx_preempt: vsx_asm.S
> diff --git a/tools/testing/selftests/powerpc/mm/Makefile
> b/tools/testing/selftests/powerpc/mm/Makefile
> index 1cffe54..d4d2e68 100644
> --- a/tools/testing/selftests/powerpc/mm/Makefile
> +++ b/tools/testing/selftests/powerpc/mm/Makefile
> @@ -8,8 +8,8 @@ include ../../lib.mk
>
> $(TEST_GEN_PROGS): ../harness.c
>
> -$(OUTPUT)/prot_sao: ../utils.c
> +$(OUTPUT)prot_sao: ../utils.c
>
> -$(OUTPUT)/tempfile:
> +$(OUTPUT)tempfile:
> dd if=/dev/zero of=$@ bs=64k count=1
>
> diff --git a/tools/testing/selftests/powerpc/pmu/Makefile
> b/tools/testing/selftests/powerpc/pmu/Makefile
> index e4e55d1..17a9be7 100644
> --- a/tools/testing/selftests/powerpc/pmu/Makefile
> +++ b/tools/testing/selftests/powerpc/pmu/Makefile
> @@ -11,34 +11,34 @@ all: $(TEST_GEN_PROGS) ebb
> $(TEST_GEN_PROGS): $(EXTRA_SOURCES)
>
> # loop.S can only be built 64-bit
> -$(OUTPUT)/count_instructions: loop.S count_instructions.c $(EXTRA_SOURCES)
> +$(OUTPUT)count_instructions: loop.S count_instructions.c $(EXTRA_SOURCES)
> $(CC) $(CFLAGS) -m64 -o $@ $^
>
> -$(OUTPUT)/per_event_excludes: ../utils.c
> +$(OUTPUT)per_event_excludes: ../utils.c
>
> DEFAULT_RUN_TESTS := $(RUN_TESTS)
> override define RUN_TESTS
> $(DEFAULT_RUN_TESTS)
> - TARGET=ebb; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE)
> OUTPUT=$$BUILD_TARGET -C $$TARGET run_tests
> + TARGET=ebb; BUILD_TARGET=$$OUTPUT$$TARGET; $(MAKE)
> OUTPUT=$$BUILD_TARGET/ -C $$TARGET run_tests
> endef
>
> DEFAULT_EMIT_TESTS := $(EMIT_TESTS)
> override define EMIT_TESTS
> $(DEFAULT_EMIT_TESTS)
> - TARGET=ebb; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE)
> OUTPUT=$$BUILD_TARGET -s -C $$TARGET emit_tests
> + TARGET=ebb; BUILD_TARGET=$$OUTPUT$$TARGET; $(MAKE)
> OUTPUT=$$BUILD_TARGET/ -s -C $$TARGET emit_tests
> endef
>
> DEFAULT_INSTALL_RULE := $(INSTALL_RULE)
> override define INSTALL_RULE
> $(DEFAULT_INSTALL_RULE)
> - TARGET=ebb; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE)
> OUTPUT=$$BUILD_TARGET -C $$TARGET install
> + TARGET=ebb; BUILD_TARGET=$$OUTPUT$$TARGET; $(MAKE)
> OUTPUT=$$BUILD_TARGET/ -C $$TARGET install
> endef
>
> clean:
> - $(RM) $(TEST_GEN_PROGS) $(OUTPUT)/loop.o
> - TARGET=ebb; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE)
> OUTPUT=$$BUILD_TARGET -C $$TARGET clean
> + $(RM) $(TEST_GEN_PROGS) $(OUTPUT)loop.o
> + TARGET=ebb; BUILD_TARGET=$$OUTPUT$$TARGET; $(MAKE)
> OUTPUT=$$BUILD_TARGET/ -C $$TARGET clean
>
> ebb:
> - TARGET=$@; BUILD_TARGET=$$OUTPUT/$$TARGET; mkdir -p $$BUILD_TARGET;
> $(MAKE) OUTPUT=$$BUILD_TARGET -k -C $$TARGET all
> + TARGET=$@; BUILD_TARGET=$$OUTPUT$$TARGET; mkdir -p $$BUILD_TARGET;
> $(MAKE) OUTPUT=$$BUILD_TARGET/ -k -C $$TARGET all
>
> .PHONY: all run_tests clean ebb
> diff --git a/tools/testing/selftests/powerpc/pmu/ebb/Makefile
> b/tools/testing/selftests/powerpc/pmu/ebb/Makefile
> index 6001fb0..1512260 100644
> --- a/tools/testing/selftests/powerpc/pmu/ebb/Makefile
> +++ b/tools/testing/selftests/powerpc/pmu/ebb/Makefile
> @@ -21,6 +21,6 @@ include ../../../lib.mk
> $(TEST_GEN_PROGS): ../../harness.c ../../utils.c ../event.c ../lib.c \
> ebb.c ebb_handler.S trace.c busy_loop.S
>
> -$(OUTPUT)/instruction_count_test: ../loop.S
> +$(OUTPUT)instruction_count_test: ../loop.S
>
> -$(OUTPUT)/lost_exception_test: ../lib.c
> +$(OUTPUT)lost_exception_test: ../lib.c
> diff --git a/tools/testing/selftests/powerpc/switch_endian/Makefile
> b/tools/testing/selftests/powerpc/switch_endian/Makefile
> index b92c2a1..4d0bbf7 100644
> --- a/tools/testing/selftests/powerpc/switch_endian/Makefile
> +++ b/tools/testing/selftests/powerpc/switch_endian/Makefile
> @@ -2,14 +2,14 @@ TEST_GEN_PROGS := switch_endian_test
>
> ASFLAGS += -O2 -Wall -g -nostdlib -m64
>
> -EXTRA_CLEAN = $(OUTPUT)/*.o $(OUTPUT)/check-reversed.S
> +EXTRA_CLEAN = $(OUTPUT)*.o $(OUTPUT)check-reversed.S
>
> include ../../lib.mk
>
> -$(OUTPUT)/switch_endian_test: $(OUTPUT)/check-reversed.S
> +$(OUTPUT)switch_endian_test: $(OUTPUT)check-reversed.S
>
> -$(OUTPUT)/check-reversed.o: $(OUTPUT)/check.o
> +$(OUTPUT)check-reversed.o: $(OUTPUT)check.o
> $(CROSS_COMPILE)objcopy -j .text --reverse-bytes=4 -O binary $< $@
>
> -$(OUTPUT)/check-reversed.S: $(OUTPUT)/check-reversed.o
> +$(OUTPUT)check-reversed.S: $(OUTPUT)check-reversed.o
> hexdump -v -e '/1 ".byte 0x%02X\n"' $< > $@
> diff --git a/tools/testing/selftests/powerpc/tm/Makefile
> b/tools/testing/selftests/powerpc/tm/Makefile
> index 5576ee6..9c76e25 100644
> --- a/tools/testing/selftests/powerpc/tm/Makefile
> +++ b/tools/testing/selftests/powerpc/tm/Makefile
> @@ -10,10 +10,10 @@ $(TEST_GEN_PROGS): ../harness.c ../utils.c
>
> CFLAGS += -mhtm
>
> -$(OUTPUT)/tm-syscall: tm-syscall-asm.S
> -$(OUTPUT)/tm-syscall: CFLAGS += -I../../../../../usr/include
> -$(OUTPUT)/tm-tmspr: CFLAGS += -pthread
> +$(OUTPUT)tm-syscall: tm-syscall-asm.S
> +$(OUTPUT)tm-syscall: CFLAGS += -I../../../../../usr/include
> +$(OUTPUT)tm-tmspr: CFLAGS += -pthread
>
> -SIGNAL_CONTEXT_CHK_TESTS := $(patsubst
> %,$(OUTPUT)/%,$(SIGNAL_CONTEXT_CHK_TESTS))
> +SIGNAL_CONTEXT_CHK_TESTS := $(patsubst
> %,$(OUTPUT)%,$(SIGNAL_CONTEXT_CHK_TESTS))
> $(SIGNAL_CONTEXT_CHK_TESTS): tm-signal.S
> $(SIGNAL_CONTEXT_CHK_TESTS): CFLAGS += -mhtm -m64 -mvsx
> diff --git a/tools/testing/selftests/vm/Makefile
> b/tools/testing/selftests/vm/Makefile
> index 222ee45..1e7c02c 100644
> --- a/tools/testing/selftests/vm/Makefile
> +++ b/tools/testing/selftests/vm/Makefile
> @@ -19,10 +19,10 @@ TEST_PROGS := run_vmtests
>
> include ../lib.mk
>
> -$(OUTPUT)/userfaultfd: LDLIBS += -lpthread
> ../../../../usr/include/linux/kernel.h
> -$(OUTPUT)/userfaultfd_hugetlb: LDLIBS += -lpthread
> ../../../../usr/include/linux/kernel.h
> -$(OUTPUT)/userfaultfd_shmem: LDLIBS += -lpthread
> ../../../../usr/include/linux/kernel.h
> -$(OUTPUT)/mlock-random-test: LDLIBS += -lcap
> +$(OUTPUT)userfaultfd: LDLIBS += -lpthread
> ../../../../usr/include/linux/kernel.h
> +$(OUTPUT)userfaultfd_hugetlb: LDLIBS += -lpthread
> ../../../../usr/include/linux/kernel.h
> +$(OUTPUT)userfaultfd_shmem: LDLIBS += -lpthread
> ../../../../usr/include/linux/kernel.h
> +$(OUTPUT)mlock-random-test: LDLIBS += -lcap
>
> ../../../../usr/include/linux/kernel.h:
> make -C ../../../.. headers_install
> diff --git a/tools/testing/selftests/x86/Makefile
> b/tools/testing/selftests/x86/Makefile
> index 3a5ebae..42db9f4 100644
> --- a/tools/testing/selftests/x86/Makefile
> +++ b/tools/testing/selftests/x86/Makefile
> @@ -17,8 +17,8 @@ TARGETS_C_64BIT_ALL := $(TARGETS_C_BOTHBITS)
> $(TARGETS_C_64BIT_ONLY)
> BINARIES_32 := $(TARGETS_C_32BIT_ALL:%=%_32)
> BINARIES_64 := $(TARGETS_C_64BIT_ALL:%=%_64)
>
> -BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))
> -BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))
> +BINARIES_32 := $(patsubst %,$(OUTPUT)%,$(BINARIES_32))
> +BINARIES_64 := $(patsubst %,$(OUTPUT)%,$(BINARIES_64))
>
> CFLAGS := -O2 -g -std=gnu99 -pthread -Wall
>
> @@ -43,10 +43,10 @@ all_64: $(BINARIES_64)
> clean:
> $(RM) $(BINARIES_32) $(BINARIES_64)
>
> -$(BINARIES_32): $(OUTPUT)/%_32: %.c
> +$(BINARIES_32): $(OUTPUT)%_32: %.c
> $(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl -lm
>
> -$(BINARIES_64): $(OUTPUT)/%_64: %.c
> +$(BINARIES_64): $(OUTPUT)%_64: %.c
> $(CC) -m64 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl
>
> # x86_64 users should be encouraged to install 32-bit libraries
> @@ -68,12 +68,12 @@ warn_32bit_failure:
> endif
>
> # Some tests have additional dependencies.
> -$(OUTPUT)/sysret_ss_attrs_64: thunks.S
> -$(OUTPUT)/ptrace_syscall_32: raw_syscall_helper_32.S
> -$(OUTPUT)/test_syscall_vdso_32: thunks_32.S
> +$(OUTPUT)sysret_ss_attrs_64: thunks.S
> +$(OUTPUT)ptrace_syscall_32: raw_syscall_helper_32.S
> +$(OUTPUT)test_syscall_vdso_32: thunks_32.S
>
> # check_initial_reg_state is special: it needs a custom entry, and it
> # needs to be static so that its interpreter doesn't destroy its initial
> # state.
> -$(OUTPUT)/check_initial_reg_state_32: CFLAGS += -Wl,-ereal_start -static
> -$(OUTPUT)/check_initial_reg_state_64: CFLAGS += -Wl,-ereal_start -static
> +$(OUTPUT)check_initial_reg_state_32: CFLAGS += -Wl,-ereal_start -static
> +$(OUTPUT)check_initial_reg_state_64: CFLAGS += -Wl,-ereal_start -static
>
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