From 7e49afc03212010d0ee27532a75cfeb0125bd868 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Sat, 18 Apr 2020 03:04:55 +0900 Subject: um: do not evaluate compiler's library path when cleaning Since commit a83e4ca26af8 ("kbuild: remove cc-option switch from -Wframe-larger-than="), 'make ARCH=um clean' emits an error message as follows: $ make ARCH=um clean gcc: error: missing argument to '-Wframe-larger-than=' We do not care compiler flags when cleaning. Use the '=' operator for lazy expansion because we do not use LDFLAGS_pcap.o or LDFLAGS_vde.o when cleaning. While I was here, I removed the redundant -r option because it already exists in the recipe. Fixes: a83e4ca26af8 ("kbuild: remove cc-option switch from -Wframe-larger-than=") Signed-off-by: Masahiro Yamada Reviewed-by: Nathan Chancellor Tested-by: Nathan Chancellor [build] --- arch/um/drivers/Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/um/drivers/Makefile b/arch/um/drivers/Makefile index a290821e355c..2a249f619467 100644 --- a/arch/um/drivers/Makefile +++ b/arch/um/drivers/Makefile @@ -18,9 +18,9 @@ ubd-objs := ubd_kern.o ubd_user.o port-objs := port_kern.o port_user.o harddog-objs := harddog_kern.o harddog_user.o -LDFLAGS_pcap.o := -r $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libpcap.a) +LDFLAGS_pcap.o = $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libpcap.a) -LDFLAGS_vde.o := -r $(shell $(CC) $(CFLAGS) -print-file-name=libvdeplug.a) +LDFLAGS_vde.o = $(shell $(CC) $(CFLAGS) -print-file-name=libvdeplug.a) targets := pcap_kern.o pcap_user.o vde_kern.o vde_user.o -- cgit v1.2.3 From 6632fa8fcabacd75329bd2ea78cba5c43754639a Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Sat, 25 Apr 2020 01:15:02 +0900 Subject: hexagon: suppress error message for 'make clean' 'make ARCH=hexagon clean' emits an error message as follows: $ make ARCH=hexagon clean gcc: error: unrecognized command line option '-G0' You can suppress it by setting the correct CROSS_COMPILE=, but we should not require any compiler for cleaning. Signed-off-by: Masahiro Yamada Acked-by: Brian Cain --- arch/hexagon/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/hexagon/Makefile b/arch/hexagon/Makefile index 4c5858b80f0e..c168c6980d05 100644 --- a/arch/hexagon/Makefile +++ b/arch/hexagon/Makefile @@ -30,7 +30,7 @@ TIR_NAME := r19 KBUILD_CFLAGS += -ffixed-$(TIR_NAME) -DTHREADINFO_REG=$(TIR_NAME) -D__linux__ KBUILD_AFLAGS += -DTHREADINFO_REG=$(TIR_NAME) -LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) +LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name 2>/dev/null) libs-y += $(LIBGCC) head-y := arch/hexagon/kernel/head.o -- cgit v1.2.3 From dc960bfeedb01cf832c5632ed1f3daed4416b142 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Sat, 25 Apr 2020 14:18:16 +0900 Subject: h8300: suppress error messages for 'make clean' 'make ARCH=h8300 clean' emits error messages as follows: $ make ARCH=h8300 clean gcc: error: missing argument to '-Wframe-larger-than=' gcc: error: unrecognized command line option '-mint32' You can suppress the second one by setting the correct CROSS_COMPILE=, but we should not require any compiler for cleaning. Signed-off-by: Masahiro Yamada --- arch/h8300/boot/compressed/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/h8300/boot/compressed/Makefile b/arch/h8300/boot/compressed/Makefile index 9e2701069bbe..5942793f77a0 100644 --- a/arch/h8300/boot/compressed/Makefile +++ b/arch/h8300/boot/compressed/Makefile @@ -18,7 +18,7 @@ CONFIG_MEMORY_START ?= 0x00400000 CONFIG_BOOT_LINK_OFFSET ?= 0x00280000 IMAGE_OFFSET := $(shell printf "0x%08x" $$(($(CONFIG_MEMORY_START)+$(CONFIG_BOOT_LINK_OFFSET)))) -LIBGCC := $(shell $(CROSS-COMPILE)$(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) +LIBGCC := $(shell $(CROSS-COMPILE)$(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name 2>/dev/null) LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -estartup -T $(obj)/vmlinux.lds \ --defsym output=$(CONFIG_MEMORY_START) -- cgit v1.2.3 From 081b4b54ff6c58be2ffcf09d42e5df8f031eacd0 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Sat, 25 Apr 2020 15:06:40 +0900 Subject: unicore32: do not evaluate compiler's library path when cleaning Since commit a83e4ca26af8 ("kbuild: remove cc-option switch from -Wframe-larger-than="), 'make ARCH=unicore32 clean' emits error messages as follows: $ make ARCH=unicore32 clean gcc: error: missing argument to '-Wframe-larger-than=' gcc: error: missing argument to '-Wframe-larger-than=' We do not care compiler flags when cleaning. Use the '=' operator for lazy expansion because we do not use GNU_LIBC_A or GNU_LIBGCC_A when cleaning. Fixes: a83e4ca26af8 ("kbuild: remove cc-option switch from -Wframe-larger-than=") Signed-off-by: Masahiro Yamada Reviewed-by: Nick Desaulniers --- arch/unicore32/lib/Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/unicore32/lib/Makefile b/arch/unicore32/lib/Makefile index 098981a01841..5af06645b8f0 100644 --- a/arch/unicore32/lib/Makefile +++ b/arch/unicore32/lib/Makefile @@ -10,12 +10,12 @@ lib-y += strncpy_from_user.o strnlen_user.o lib-y += clear_user.o copy_page.o lib-y += copy_from_user.o copy_to_user.o -GNU_LIBC_A := $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libc.a) +GNU_LIBC_A = $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libc.a) GNU_LIBC_A_OBJS := memchr.o memcpy.o memmove.o memset.o GNU_LIBC_A_OBJS += strchr.o strrchr.o GNU_LIBC_A_OBJS += rawmemchr.o # needed by strrchr.o -GNU_LIBGCC_A := $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libgcc.a) +GNU_LIBGCC_A = $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libgcc.a) GNU_LIBGCC_A_OBJS := _ashldi3.o _ashrdi3.o _lshrdi3.o GNU_LIBGCC_A_OBJS += _divsi3.o _modsi3.o _ucmpdi2.o _umodsi3.o _udivsi3.o -- cgit v1.2.3 From 1ca0c2f612116a7159ab11c36b555910f90db338 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 27 Apr 2020 09:30:19 +0900 Subject: kbuild: remove unused AS assignment $(AS) is not used anywhere in the kernel build, hence commit aa824e0c962b ("kbuild: remove AS variable") killed it. Remove the left-over code in arch/{arm,arm64}/Makefile. Signed-off-by: Masahiro Yamada Reviewed-by: Nathan Chancellor Acked-by: Will Deacon --- arch/arm/Makefile | 2 -- arch/arm64/Makefile | 2 -- 2 files changed, 4 deletions(-) (limited to 'arch') diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 7d5cd0f85461..cd28211f1418 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -45,12 +45,10 @@ endif ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) KBUILD_CPPFLAGS += -mbig-endian CHECKFLAGS += -D__ARMEB__ -AS += -EB KBUILD_LDFLAGS += -EB else KBUILD_CPPFLAGS += -mlittle-endian CHECKFLAGS += -D__ARMEL__ -AS += -EL KBUILD_LDFLAGS += -EL endif diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile index 85e4149cc5d5..d86cc9137539 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -84,7 +84,6 @@ KBUILD_CFLAGS += $(branch-prot-flags-y) ifeq ($(CONFIG_CPU_BIG_ENDIAN), y) KBUILD_CPPFLAGS += -mbig-endian CHECKFLAGS += -D__AARCH64EB__ -AS += -EB # Prefer the baremetal ELF build target, but not all toolchains include # it so fall back to the standard linux version if needed. KBUILD_LDFLAGS += -EB $(call ld-option, -maarch64elfb, -maarch64linuxb) @@ -92,7 +91,6 @@ UTS_MACHINE := aarch64_be else KBUILD_CPPFLAGS += -mlittle-endian CHECKFLAGS += -D__AARCH64EL__ -AS += -EL # Same as above, prefer ELF but fall back to linux target if needed. KBUILD_LDFLAGS += -EL $(call ld-option, -maarch64elf, -maarch64linux) UTS_MACHINE := aarch64 -- cgit v1.2.3 From 0663c68c4d2d3b74055b4c1cf7d8ae4782774e53 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 4 May 2020 17:08:07 +0900 Subject: kbuild: remove {CLEAN,MRPROPER,DISTCLEAN}_DIRS Merge {CLEAN,MRPROPER,DISTCLEAN}_DIRS into {CLEAN,MRPROPER,DISTCLEAN}_FILES because the difference is just the -r option passed to the 'rm' command. Do likewise as commit 1634f2bfdb84 ("kbuild: remove clean-dirs syntax"). Signed-off-by: Masahiro Yamada --- arch/um/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/um/Makefile b/arch/um/Makefile index 275f5ffdf6f0..3f27aa3ec0a6 100644 --- a/arch/um/Makefile +++ b/arch/um/Makefile @@ -140,7 +140,7 @@ export CFLAGS_vmlinux := $(LINK-y) $(LINK_WRAPS) $(LD_FLAGS_CMDLINE) # When cleaning we don't include .config, so we don't include # TT or skas makefiles and don't clean skas_ptregs.h. CLEAN_FILES += linux x.i gmon.out -MRPROPER_DIRS += arch/$(SUBARCH)/include/generated +MRPROPER_FILES += arch/$(SUBARCH)/include/generated archclean: @find . \( -name '*.bb' -o -name '*.bbg' -o -name '*.da' \ -- cgit v1.2.3 From 8dfb61dcbaceb19a5ded5e9c9dcf8d05acc32294 Mon Sep 17 00:00:00 2001 From: Denis Efremov Date: Fri, 5 Jun 2020 10:39:55 +0300 Subject: kbuild: add variables for compression tools Allow user to use alternative implementations of compression tools, such as pigz, pbzip2, pxz. For example, multi-threaded tools to speed up the build: $ make GZIP=pigz BZIP2=pbzip2 Variables _GZIP, _BZIP2, _LZOP are used internally because original env vars are reserved by the tools. The use of GZIP in gzip tool is obsolete since 2015. However, alternative implementations (e.g., pigz) still rely on it. BZIP2, BZIP, LZOP vars are not obsolescent. The credit goes to @grsecurity. As a sidenote, for multi-threaded lzma, xz compression one can use: $ export XZ_OPT="--threads=0" Signed-off-by: Denis Efremov Signed-off-by: Masahiro Yamada --- arch/arm/boot/deflate_xip_data.sh | 2 +- arch/ia64/Makefile | 2 +- arch/m68k/Makefile | 8 ++++---- arch/parisc/Makefile | 2 +- 4 files changed, 7 insertions(+), 7 deletions(-) (limited to 'arch') diff --git a/arch/arm/boot/deflate_xip_data.sh b/arch/arm/boot/deflate_xip_data.sh index 40937248cebe..739f0464321e 100755 --- a/arch/arm/boot/deflate_xip_data.sh +++ b/arch/arm/boot/deflate_xip_data.sh @@ -56,7 +56,7 @@ trap 'rm -f "$XIPIMAGE.tmp"; exit 1' 1 2 3 # substitute the data section by a compressed version $DD if="$XIPIMAGE" count=$data_start iflag=count_bytes of="$XIPIMAGE.tmp" $DD if="$XIPIMAGE" skip=$data_start iflag=skip_bytes | -gzip -9 >> "$XIPIMAGE.tmp" +$_GZIP -9 >> "$XIPIMAGE.tmp" # replace kernel binary mv -f "$XIPIMAGE.tmp" "$XIPIMAGE" diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile index 32240000dc0c..f817f3d5e758 100644 --- a/arch/ia64/Makefile +++ b/arch/ia64/Makefile @@ -40,7 +40,7 @@ $(error Sorry, you need a newer version of the assember, one that is built from endif quiet_cmd_gzip = GZIP $@ -cmd_gzip = cat $(real-prereqs) | gzip -n -f -9 > $@ +cmd_gzip = cat $(real-prereqs) | $(_GZIP) -n -f -9 > $@ quiet_cmd_objcopy = OBJCOPY $@ cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ diff --git a/arch/m68k/Makefile b/arch/m68k/Makefile index 5d9288384096..ce6db5e5a5a3 100644 --- a/arch/m68k/Makefile +++ b/arch/m68k/Makefile @@ -135,10 +135,10 @@ vmlinux.gz: vmlinux ifndef CONFIG_KGDB cp vmlinux vmlinux.tmp $(STRIP) vmlinux.tmp - gzip -9c vmlinux.tmp >vmlinux.gz + $(_GZIP) -9c vmlinux.tmp >vmlinux.gz rm vmlinux.tmp else - gzip -9c vmlinux >vmlinux.gz + $(_GZIP) -9c vmlinux >vmlinux.gz endif bzImage: vmlinux.bz2 @@ -148,10 +148,10 @@ vmlinux.bz2: vmlinux ifndef CONFIG_KGDB cp vmlinux vmlinux.tmp $(STRIP) vmlinux.tmp - bzip2 -1c vmlinux.tmp >vmlinux.bz2 + $(_BZIP2) -1c vmlinux.tmp >vmlinux.bz2 rm vmlinux.tmp else - bzip2 -1c vmlinux >vmlinux.bz2 + $(_BZIP2) -1c vmlinux >vmlinux.bz2 endif archclean: diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile index 628cd8bb7ad8..e1aa514aeb36 100644 --- a/arch/parisc/Makefile +++ b/arch/parisc/Makefile @@ -162,7 +162,7 @@ vmlinuz: bzImage $(OBJCOPY) $(boot)/bzImage $@ else vmlinuz: vmlinux - @gzip -cf -9 $< > $@ + @$(_GZIP) -cf -9 $< > $@ endif install: -- cgit v1.2.3