Re: [PATCH v4 2/3] selftests/mm: remove partially duplicated "all:" target in Makefile

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On 7/4/24 7:33 AM, John Hubbard wrote:
> There were a couple of errors here:
> 
> 1. TEST_GEN_PROGS was incorrectly prepending $(OUTPUT) to each program
> to be built. However, lib.mk already does that because it assumes "bare"
> program names are passed in, so this ended up creating
> $(OUTPUT)/$(OUTPUT)/file.c, which of course won't work as intended.
> 
> 2. lib.mk was included before TEST_GEN_PROGS was set, which led to
> lib.mk's "all:" target not seeing anything to rebuild.
> 
> So nothing worked, which caused the author to force things by creating
> an "all:" target locally--while still including ../lib.mk.
> 
> Fix all of this by including ../lib.mk at the right place, and removing
> the $(OUTPUT) prefix to the programs to be built, and removing the
> duplicate "all:" target.
> 
> Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx>
Reviewed-by: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx>

> ---
>  tools/testing/selftests/vDSO/Makefile | 15 +++++++--------
>  1 file changed, 7 insertions(+), 8 deletions(-)
> 
> diff --git a/tools/testing/selftests/vDSO/Makefile b/tools/testing/selftests/vDSO/Makefile
> index d53a4d8008f9..209ede5de208 100644
> --- a/tools/testing/selftests/vDSO/Makefile
> +++ b/tools/testing/selftests/vDSO/Makefile
> @@ -1,16 +1,15 @@
>  # SPDX-License-Identifier: GPL-2.0
> -include ../lib.mk
> -
>  uname_M := $(shell uname -m 2>/dev/null || echo not)
>  ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
>  
> -TEST_GEN_PROGS := $(OUTPUT)/vdso_test_gettimeofday $(OUTPUT)/vdso_test_getcpu
> -TEST_GEN_PROGS += $(OUTPUT)/vdso_test_abi
> -TEST_GEN_PROGS += $(OUTPUT)/vdso_test_clock_getres
> +TEST_GEN_PROGS := vdso_test_gettimeofday
> +TEST_GEN_PROGS += vdso_test_getcpu
> +TEST_GEN_PROGS += vdso_test_abi
> +TEST_GEN_PROGS += vdso_test_clock_getres
>  ifeq ($(ARCH),$(filter $(ARCH),x86 x86_64))
> -TEST_GEN_PROGS += $(OUTPUT)/vdso_standalone_test_x86
> +TEST_GEN_PROGS += vdso_standalone_test_x86
>  endif
> -TEST_GEN_PROGS += $(OUTPUT)/vdso_test_correctness
> +TEST_GEN_PROGS += vdso_test_correctness
>  
>  CFLAGS := -std=gnu99
>  CFLAGS_vdso_standalone_test_x86 := -nostdlib -fno-asynchronous-unwind-tables -fno-stack-protector
> @@ -19,7 +18,7 @@ ifeq ($(CONFIG_X86_32),y)
>  LDLIBS += -lgcc_s
>  endif
>  
> -all: $(TEST_GEN_PROGS)
> +include ../lib.mk
>  $(OUTPUT)/vdso_test_gettimeofday: parse_vdso.c vdso_test_gettimeofday.c
>  $(OUTPUT)/vdso_test_getcpu: parse_vdso.c vdso_test_getcpu.c
>  $(OUTPUT)/vdso_test_abi: parse_vdso.c vdso_test_abi.c

-- 
BR,
Muhammad Usama Anjum




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