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authorLinus Torvalds <torvalds@linux-foundation.org>2019-07-12 16:03:16 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-07-12 16:03:16 -0700
commit39ceda5ce1b002e30563fcb8ad1bb5ac8e4d59ee (patch)
tree18751f981a3a540379b9f4b01292e1b4f401aa38 /lib
parent5f26f1143678d0fed8115afdcc0de99ee7cc9675 (diff)
parentd4a74bbfee03acf7bbddc77b9c9236462c744fc7 (diff)
Merge tag 'kbuild-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada: - remove headers_{install,check}_all targets - remove unreasonable 'depends on !UML' from CONFIG_SAMPLES - re-implement 'make headers_install' more cleanly - add new header-test-y syntax to compile-test headers - compile-test exported headers to ensure they are compilable in user-space - compile-test headers under include/ to ensure they are self-contained - remove -Waggregate-return, -Wno-uninitialized, -Wno-unused-value flags - add -Werror=unknown-warning-option for Clang - add 128-bit built-in types support to genksyms - fix missed rebuild of modules.builtin - propagate 'No space left on device' error in fixdep to Make - allow Clang to use its integrated assembler - improve some coccinelle scripts - add a new flag KBUILD_ABS_SRCTREE to request Kbuild to use absolute path for $(srctree). - do not ignore errors when compression utility is missing - misc cleanups * tag 'kbuild-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (49 commits) kbuild: use -- separater intead of $(filter-out ...) for cc-cross-prefix kbuild: Inform user to pass ARCH= for make mrproper kbuild: fix compression errors getting ignored kbuild: add a flag to force absolute path for srctree kbuild: replace KBUILD_SRCTREE with boolean building_out_of_srctree kbuild: remove src and obj from the top Makefile scripts/tags.sh: remove unused environment variables from comments scripts/tags.sh: drop SUBARCH support for ARM kbuild: compile-test kernel headers to ensure they are self-contained kheaders: include only headers into kheaders_data.tar.xz kheaders: remove meaningless -R option of 'ls' kbuild: support header-test-pattern-y kbuild: do not create wrappers for header-test-y kbuild: compile-test exported headers to ensure they are self-contained init/Kconfig: add CONFIG_CC_CAN_LINK kallsyms: exclude kasan local symbols on s390 kbuild: add more hints about SUBDIRS replacement coccinelle: api/stream_open: treat all wait_.*() calls as blocking coccinelle: put_device: Add a cast to an expression for an assignment coccinelle: put_device: Adjust a message construction ...
Diffstat (limited to 'lib')
-rw-r--r--lib/Kconfig.debug25
-rw-r--r--lib/raid6/Makefile98
2 files changed, 27 insertions, 96 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index d4c8c9323aa4..4ac4ca21a30a 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -305,19 +305,26 @@ config DEBUG_FS
If unsure, say N.
-config HEADERS_CHECK
- bool "Run 'make headers_check' when building vmlinux"
+config HEADERS_INSTALL
+ bool "Install uapi headers to usr/include"
depends on !UML
help
- This option will extract the user-visible kernel headers whenever
- building the kernel, and will run basic sanity checks on them to
- ensure that exported files do not attempt to include files which
- were not exported, etc.
+ This option will install uapi headers (headers exported to user-space)
+ into the usr/include directory for use during the kernel build.
+ This is unneeded for building the kernel itself, but needed for some
+ user-space program samples. It is also needed by some features such
+ as uapi header sanity checks.
+
+config HEADERS_CHECK
+ bool "Run sanity checks on uapi headers when building 'all'"
+ depends on HEADERS_INSTALL
+ help
+ This option will run basic sanity checks on uapi headers when
+ building the 'all' target, for example, ensure that they do not
+ attempt to include files which were not exported, etc.
If you're making modifications to header files which are
- relevant for userspace, say 'Y', and check the headers
- exported to $(INSTALL_HDR_PATH) (usually 'usr/include' in
- your build tree), to make sure they're suitable.
+ relevant for userspace, say 'Y'.
config OPTIMIZE_INLINING
bool "Allow compiler to uninline functions marked 'inline'"
diff --git a/lib/raid6/Makefile b/lib/raid6/Makefile
index e723eacf7868..42695bc8d451 100644
--- a/lib/raid6/Makefile
+++ b/lib/raid6/Makefile
@@ -12,9 +12,6 @@ raid6_pq-$(CONFIG_S390) += s390vx8.o recov_s390xc.o
hostprogs-y += mktables
-quiet_cmd_unroll = UNROLL $@
- cmd_unroll = $(AWK) -f$(srctree)/$(src)/unroll.awk -vN=$(UNROLL) < $< > $@
-
ifeq ($(CONFIG_ALTIVEC),y)
altivec_flags := -maltivec $(call cc-option,-mabi=altivec)
@@ -26,7 +23,6 @@ CFLAGS_REMOVE_altivec1.o += -msoft-float
CFLAGS_REMOVE_altivec2.o += -msoft-float
CFLAGS_REMOVE_altivec4.o += -msoft-float
CFLAGS_REMOVE_altivec8.o += -msoft-float
-CFLAGS_REMOVE_altivec8.o += -msoft-float
CFLAGS_REMOVE_vpermxor1.o += -msoft-float
CFLAGS_REMOVE_vpermxor2.o += -msoft-float
CFLAGS_REMOVE_vpermxor4.o += -msoft-float
@@ -51,111 +47,39 @@ CFLAGS_REMOVE_neon8.o += -mgeneral-regs-only
endif
endif
-targets += int1.c
-$(obj)/int1.c: UNROLL := 1
-$(obj)/int1.c: $(src)/int.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
-targets += int2.c
-$(obj)/int2.c: UNROLL := 2
-$(obj)/int2.c: $(src)/int.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
-targets += int4.c
-$(obj)/int4.c: UNROLL := 4
-$(obj)/int4.c: $(src)/int.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
-targets += int8.c
-$(obj)/int8.c: UNROLL := 8
-$(obj)/int8.c: $(src)/int.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
-targets += int16.c
-$(obj)/int16.c: UNROLL := 16
-$(obj)/int16.c: $(src)/int.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
+quiet_cmd_unroll = UNROLL $@
+ cmd_unroll = $(AWK) -f$(srctree)/$(src)/unroll.awk -vN=$* < $< > $@
-targets += int32.c
-$(obj)/int32.c: UNROLL := 32
-$(obj)/int32.c: $(src)/int.uc $(src)/unroll.awk FORCE
+targets += int1.c int2.c int4.c int8.c int16.c int32.c
+$(obj)/int%.c: $(src)/int.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_altivec1.o += $(altivec_flags)
-targets += altivec1.c
-$(obj)/altivec1.c: UNROLL := 1
-$(obj)/altivec1.c: $(src)/altivec.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
CFLAGS_altivec2.o += $(altivec_flags)
-targets += altivec2.c
-$(obj)/altivec2.c: UNROLL := 2
-$(obj)/altivec2.c: $(src)/altivec.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
CFLAGS_altivec4.o += $(altivec_flags)
-targets += altivec4.c
-$(obj)/altivec4.c: UNROLL := 4
-$(obj)/altivec4.c: $(src)/altivec.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
CFLAGS_altivec8.o += $(altivec_flags)
-targets += altivec8.c
-$(obj)/altivec8.c: UNROLL := 8
-$(obj)/altivec8.c: $(src)/altivec.uc $(src)/unroll.awk FORCE
+targets += altivec1.c altivec2.c altivec4.c altivec8.c
+$(obj)/altivec%.c: $(src)/altivec.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_vpermxor1.o += $(altivec_flags)
-targets += vpermxor1.c
-$(obj)/vpermxor1.c: UNROLL := 1
-$(obj)/vpermxor1.c: $(src)/vpermxor.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
CFLAGS_vpermxor2.o += $(altivec_flags)
-targets += vpermxor2.c
-$(obj)/vpermxor2.c: UNROLL := 2
-$(obj)/vpermxor2.c: $(src)/vpermxor.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
CFLAGS_vpermxor4.o += $(altivec_flags)
-targets += vpermxor4.c
-$(obj)/vpermxor4.c: UNROLL := 4
-$(obj)/vpermxor4.c: $(src)/vpermxor.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
CFLAGS_vpermxor8.o += $(altivec_flags)
-targets += vpermxor8.c
-$(obj)/vpermxor8.c: UNROLL := 8
-$(obj)/vpermxor8.c: $(src)/vpermxor.uc $(src)/unroll.awk FORCE
+targets += vpermxor1.o vpermxor2.o vpermxor4.o vpermxor8.o
+$(obj)/vpermxor%.c: $(src)/vpermxor.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_neon1.o += $(NEON_FLAGS)
-targets += neon1.c
-$(obj)/neon1.c: UNROLL := 1
-$(obj)/neon1.c: $(src)/neon.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
CFLAGS_neon2.o += $(NEON_FLAGS)
-targets += neon2.c
-$(obj)/neon2.c: UNROLL := 2
-$(obj)/neon2.c: $(src)/neon.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
CFLAGS_neon4.o += $(NEON_FLAGS)
-targets += neon4.c
-$(obj)/neon4.c: UNROLL := 4
-$(obj)/neon4.c: $(src)/neon.uc $(src)/unroll.awk FORCE
- $(call if_changed,unroll)
-
CFLAGS_neon8.o += $(NEON_FLAGS)
-targets += neon8.c
-$(obj)/neon8.c: UNROLL := 8
-$(obj)/neon8.c: $(src)/neon.uc $(src)/unroll.awk FORCE
+targets += neon1.c neon2.c neon4.c neon8.c
+$(obj)/neon%.c: $(src)/neon.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
targets += s390vx8.c
-$(obj)/s390vx8.c: UNROLL := 8
-$(obj)/s390vx8.c: $(src)/s390vx.uc $(src)/unroll.awk FORCE
+$(obj)/s390vx%.c: $(src)/s390vx.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
quiet_cmd_mktable = TABLE $@