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Merge tag 'kbuild-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
"One of the most remarkable improvements in this cycle is, Kbuild is
now able to cache the result of shell commands. Some variables are
expensive to compute, for example, $(call cc-option,...) invokes the
compiler. It is not efficient to redo this computation every time,
even when we are not actually building anything. Kbuild creates a
hidden file ".cache.mk" that contains invoked shell commands and their
results. The speed-up should be noticeable.
Summary:
- Fix arch build issues (hexagon, sh)
- Clean up various Makefiles and scripts
- Fix wrong usage of {CFLAGS,LDFLAGS}_MODULE in arch Makefiles
- Cache variables that are expensive to compute
- Improve cc-ldopton and ld-option for Clang
- Optimize output directory creation"
* tag 'kbuild-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (30 commits)
kbuild: move coccicheck help from scripts/Makefile.help to top Makefile
sh: decompressor: add shipped files to .gitignore
frv: .gitignore: ignore vmlinux.lds
selinux: remove unnecessary assignment to subdir-
kbuild: specify FORCE in Makefile.headersinst as .PHONY target
kbuild: remove redundant mkdir from ./Kbuild
kbuild: optimize object directory creation for incremental build
kbuild: create object directories simpler and faster
kbuild: filter-out PHONY targets from "targets"
kbuild: remove redundant $(wildcard ...) for cmd_files calculation
kbuild: create directory for make cache only when necessary
sh: select KBUILD_DEFCONFIG depending on ARCH
kbuild: fix linker feature test macros when cross compiling with Clang
kbuild: shrink .cache.mk when it exceeds 1000 lines
kbuild: do not call cc-option before KBUILD_CFLAGS initialization
kbuild: Cache a few more calls to the compiler
kbuild: Add a cache for generated variables
kbuild: add forward declaration of default target to Makefile.asm-generic
kbuild: remove KBUILD_SUBDIR_ASFLAGS and KBUILD_SUBDIR_CCFLAGS
hexagon/kbuild: replace CFLAGS_MODULE with KBUILD_CFLAGS_MODULE
...
This commit is contained in:
Linus Torvalds
2
Kbuild
2
Kbuild
@@ -18,7 +18,6 @@ targets := kernel/bounds.s
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||||
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# We use internal kbuild rules to avoid the "is up to date" message from make
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kernel/bounds.s: kernel/bounds.c FORCE
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$(Q)mkdir -p $(dir $@)
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$(call if_changed_dep,cc_s_c)
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||||
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||||
$(obj)/$(bounds-file): kernel/bounds.s FORCE
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||||
@@ -54,7 +53,6 @@ targets += arch/$(SRCARCH)/kernel/asm-offsets.s
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# We use internal kbuild rules to avoid the "is up to date" message from make
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arch/$(SRCARCH)/kernel/asm-offsets.s: arch/$(SRCARCH)/kernel/asm-offsets.c \
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$(obj)/$(timeconst-file) $(obj)/$(bounds-file) FORCE
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$(Q)mkdir -p $(dir $@)
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$(call if_changed_dep,cc_s_c)
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$(obj)/$(offsets-file): arch/$(SRCARCH)/kernel/asm-offsets.s FORCE
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297
Makefile
297
Makefile
@@ -11,6 +11,10 @@ NAME = Fearless Coyote
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# Comments in this file are targeted only to the developer, do not
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# expect to learn how to build the kernel reading this file.
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# That's our default target when none is given on the command line
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PHONY := _all
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_all:
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# o Do not use make's built-in rules and variables
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# (this increases performance and avoids hard-to-debug behaviour);
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# o Look for make include files relative to root of kernel src
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@@ -117,10 +121,6 @@ ifeq ("$(origin O)", "command line")
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KBUILD_OUTPUT := $(O)
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endif
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# That's our default target when none is given on the command line
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PHONY := _all
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_all:
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# Cancel implicit rules on top Makefile
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$(CURDIR)/Makefile Makefile: ;
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@@ -187,15 +187,6 @@ ifeq ("$(origin M)", "command line")
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KBUILD_EXTMOD := $(M)
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endif
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# If building an external module we do not care about the all: rule
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# but instead _all depend on modules
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PHONY += all
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ifeq ($(KBUILD_EXTMOD),)
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_all: all
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else
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_all: modules
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endif
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ifeq ($(KBUILD_SRC),)
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# building in the source tree
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srctree := .
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@@ -207,6 +198,9 @@ else
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srctree := $(KBUILD_SRC)
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endif
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endif
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export KBUILD_CHECKSRC KBUILD_EXTMOD KBUILD_SRC
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objtree := .
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src := $(srctree)
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obj := $(objtree)
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@@ -215,6 +209,74 @@ VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
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export srctree objtree VPATH
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# To make sure we do not include .config for any of the *config targets
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# catch them early, and hand them over to scripts/kconfig/Makefile
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# It is allowed to specify more targets when calling make, including
|
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# mixing *config targets and build targets.
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# For example 'make oldconfig all'.
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# Detect when mixed targets is specified, and make a second invocation
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# of make so .config is not included in this case either (for *config).
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version_h := include/generated/uapi/linux/version.h
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old_version_h := include/linux/version.h
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no-dot-config-targets := clean mrproper distclean \
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cscope gtags TAGS tags help% %docs check% coccicheck \
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$(version_h) headers_% archheaders archscripts \
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kernelversion %src-pkg
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config-targets := 0
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mixed-targets := 0
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dot-config := 1
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|
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ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
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ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
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dot-config := 0
|
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endif
|
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endif
|
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|
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ifeq ($(KBUILD_EXTMOD),)
|
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ifneq ($(filter config %config,$(MAKECMDGOALS)),)
|
||||
config-targets := 1
|
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ifneq ($(words $(MAKECMDGOALS)),1)
|
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mixed-targets := 1
|
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endif
|
||||
endif
|
||||
endif
|
||||
# install and modules_install need also be processed one by one
|
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ifneq ($(filter install,$(MAKECMDGOALS)),)
|
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ifneq ($(filter modules_install,$(MAKECMDGOALS)),)
|
||||
mixed-targets := 1
|
||||
endif
|
||||
endif
|
||||
|
||||
ifeq ($(mixed-targets),1)
|
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# ===========================================================================
|
||||
# We're called with mixed targets (*config and build targets).
|
||||
# Handle them one by one.
|
||||
|
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PHONY += $(MAKECMDGOALS) __build_one_by_one
|
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|
||||
$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
|
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@:
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|
||||
__build_one_by_one:
|
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$(Q)set -e; \
|
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for i in $(MAKECMDGOALS); do \
|
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$(MAKE) -f $(srctree)/Makefile $$i; \
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done
|
||||
|
||||
else
|
||||
|
||||
# We need some generic definitions (do not try to remake the file).
|
||||
scripts/Kbuild.include: ;
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||||
include scripts/Kbuild.include
|
||||
|
||||
# Read KERNELRELEASE from include/config/kernel.release (if it exists)
|
||||
KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
|
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KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
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export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
|
||||
|
||||
# SUBARCH tells the usermode build what the underlying arch is. That is set
|
||||
# first, and if a usermode build is happening, the "ARCH=um" on the command
|
||||
# line overrides the setting of ARCH below. If a native build is happening,
|
||||
@@ -285,9 +347,6 @@ ifeq ($(ARCH),tilegx)
|
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SRCARCH := tile
|
||||
endif
|
||||
|
||||
# Where to locate arch specific headers
|
||||
hdr-arch := $(SRCARCH)
|
||||
|
||||
KCONFIG_CONFIG ?= .config
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export KCONFIG_CONFIG
|
||||
|
||||
@@ -308,45 +367,6 @@ HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS)
|
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HOSTLDFLAGS := $(HOST_LFS_LDFLAGS)
|
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HOST_LOADLIBES := $(HOST_LFS_LIBS)
|
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|
||||
ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1)
|
||||
HOSTCFLAGS += -Wno-unused-value -Wno-unused-parameter \
|
||||
-Wno-missing-field-initializers -fno-delete-null-pointer-checks
|
||||
endif
|
||||
|
||||
# Decide whether to build built-in, modular, or both.
|
||||
# Normally, just do built-in.
|
||||
|
||||
KBUILD_MODULES :=
|
||||
KBUILD_BUILTIN := 1
|
||||
|
||||
# If we have only "make modules", don't compile built-in objects.
|
||||
# When we're building modules with modversions, we need to consider
|
||||
# the built-in objects during the descend as well, in order to
|
||||
# make sure the checksums are up to date before we record them.
|
||||
|
||||
ifeq ($(MAKECMDGOALS),modules)
|
||||
KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
|
||||
endif
|
||||
|
||||
# If we have "make <whatever> modules", compile modules
|
||||
# in addition to whatever we do anyway.
|
||||
# Just "make" or "make all" shall build modules as well
|
||||
|
||||
ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
|
||||
KBUILD_MODULES := 1
|
||||
endif
|
||||
|
||||
ifeq ($(MAKECMDGOALS),)
|
||||
KBUILD_MODULES := 1
|
||||
endif
|
||||
|
||||
export KBUILD_MODULES KBUILD_BUILTIN
|
||||
export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
|
||||
|
||||
# We need some generic definitions (do not try to remake the file).
|
||||
scripts/Kbuild.include: ;
|
||||
include scripts/Kbuild.include
|
||||
|
||||
# Make variables (CC, etc...)
|
||||
AS = $(CROSS_COMPILE)as
|
||||
LD = $(CROSS_COMPILE)ld
|
||||
@@ -374,12 +394,11 @@ LDFLAGS_MODULE =
|
||||
CFLAGS_KERNEL =
|
||||
AFLAGS_KERNEL =
|
||||
LDFLAGS_vmlinux =
|
||||
CFLAGS_GCOV := -fprofile-arcs -ftest-coverage -fno-tree-loop-im $(call cc-disable-warning,maybe-uninitialized,)
|
||||
|
||||
# Use USERINCLUDE when you must reference the UAPI directories only.
|
||||
USERINCLUDE := \
|
||||
-I$(srctree)/arch/$(hdr-arch)/include/uapi \
|
||||
-I$(objtree)/arch/$(hdr-arch)/include/generated/uapi \
|
||||
-I$(srctree)/arch/$(SRCARCH)/include/uapi \
|
||||
-I$(objtree)/arch/$(SRCARCH)/include/generated/uapi \
|
||||
-I$(srctree)/include/uapi \
|
||||
-I$(objtree)/include/generated/uapi \
|
||||
-include $(srctree)/include/linux/kconfig.h
|
||||
@@ -387,40 +406,33 @@ USERINCLUDE := \
|
||||
# Use LINUXINCLUDE when you must reference the include/ directory.
|
||||
# Needed to be compatible with the O= option
|
||||
LINUXINCLUDE := \
|
||||
-I$(srctree)/arch/$(hdr-arch)/include \
|
||||
-I$(objtree)/arch/$(hdr-arch)/include/generated \
|
||||
-I$(srctree)/arch/$(SRCARCH)/include \
|
||||
-I$(objtree)/arch/$(SRCARCH)/include/generated \
|
||||
$(if $(KBUILD_SRC), -I$(srctree)/include) \
|
||||
-I$(objtree)/include \
|
||||
$(USERINCLUDE)
|
||||
|
||||
KBUILD_CPPFLAGS := -D__KERNEL__
|
||||
|
||||
KBUILD_AFLAGS := -D__ASSEMBLY__
|
||||
KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
|
||||
-fno-strict-aliasing -fno-common -fshort-wchar \
|
||||
-Werror-implicit-function-declaration \
|
||||
-Wno-format-security \
|
||||
-std=gnu89 $(call cc-option,-fno-PIE)
|
||||
|
||||
|
||||
-std=gnu89
|
||||
KBUILD_CPPFLAGS := -D__KERNEL__
|
||||
KBUILD_AFLAGS_KERNEL :=
|
||||
KBUILD_CFLAGS_KERNEL :=
|
||||
KBUILD_AFLAGS := -D__ASSEMBLY__ $(call cc-option,-fno-PIE)
|
||||
KBUILD_AFLAGS_MODULE := -DMODULE
|
||||
KBUILD_CFLAGS_MODULE := -DMODULE
|
||||
KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds
|
||||
GCC_PLUGINS_CFLAGS :=
|
||||
|
||||
# Read KERNELRELEASE from include/config/kernel.release (if it exists)
|
||||
KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
|
||||
KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
|
||||
|
||||
export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
|
||||
export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
|
||||
export CPP AR NM STRIP OBJCOPY OBJDUMP HOSTLDFLAGS HOST_LOADLIBES
|
||||
export MAKE AWK GENKSYMS INSTALLKERNEL PERL PYTHON UTS_MACHINE
|
||||
export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
|
||||
|
||||
export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
|
||||
export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV CFLAGS_KCOV CFLAGS_KASAN CFLAGS_UBSAN
|
||||
export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_KASAN CFLAGS_UBSAN
|
||||
export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
|
||||
export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE
|
||||
export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL
|
||||
@@ -462,73 +474,6 @@ ifneq ($(KBUILD_SRC),)
|
||||
$(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
|
||||
endif
|
||||
|
||||
# Support for using generic headers in asm-generic
|
||||
PHONY += asm-generic uapi-asm-generic
|
||||
asm-generic: uapi-asm-generic
|
||||
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
|
||||
src=asm obj=arch/$(SRCARCH)/include/generated/asm
|
||||
uapi-asm-generic:
|
||||
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
|
||||
src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm
|
||||
|
||||
# To make sure we do not include .config for any of the *config targets
|
||||
# catch them early, and hand them over to scripts/kconfig/Makefile
|
||||
# It is allowed to specify more targets when calling make, including
|
||||
# mixing *config targets and build targets.
|
||||
# For example 'make oldconfig all'.
|
||||
# Detect when mixed targets is specified, and make a second invocation
|
||||
# of make so .config is not included in this case either (for *config).
|
||||
|
||||
version_h := include/generated/uapi/linux/version.h
|
||||
old_version_h := include/linux/version.h
|
||||
|
||||
no-dot-config-targets := clean mrproper distclean \
|
||||
cscope gtags TAGS tags help% %docs check% coccicheck \
|
||||
$(version_h) headers_% archheaders archscripts \
|
||||
kernelversion %src-pkg
|
||||
|
||||
config-targets := 0
|
||||
mixed-targets := 0
|
||||
dot-config := 1
|
||||
|
||||
ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
|
||||
ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
|
||||
dot-config := 0
|
||||
endif
|
||||
endif
|
||||
|
||||
ifeq ($(KBUILD_EXTMOD),)
|
||||
ifneq ($(filter config %config,$(MAKECMDGOALS)),)
|
||||
config-targets := 1
|
||||
ifneq ($(words $(MAKECMDGOALS)),1)
|
||||
mixed-targets := 1
|
||||
endif
|
||||
endif
|
||||
endif
|
||||
# install and modules_install need also be processed one by one
|
||||
ifneq ($(filter install,$(MAKECMDGOALS)),)
|
||||
ifneq ($(filter modules_install,$(MAKECMDGOALS)),)
|
||||
mixed-targets := 1
|
||||
endif
|
||||
endif
|
||||
|
||||
ifeq ($(mixed-targets),1)
|
||||
# ===========================================================================
|
||||
# We're called with mixed targets (*config and build targets).
|
||||
# Handle them one by one.
|
||||
|
||||
PHONY += $(MAKECMDGOALS) __build_one_by_one
|
||||
|
||||
$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
|
||||
@:
|
||||
|
||||
__build_one_by_one:
|
||||
$(Q)set -e; \
|
||||
for i in $(MAKECMDGOALS); do \
|
||||
$(MAKE) -f $(srctree)/Makefile $$i; \
|
||||
done
|
||||
|
||||
else
|
||||
ifeq ($(config-targets),1)
|
||||
# ===========================================================================
|
||||
# *config targets only - make sure prerequisites are updated, and descend
|
||||
@@ -551,6 +496,44 @@ else
|
||||
# Build targets only - this includes vmlinux, arch specific targets, clean
|
||||
# targets and others. In general all targets except *config targets.
|
||||
|
||||
# If building an external module we do not care about the all: rule
|
||||
# but instead _all depend on modules
|
||||
PHONY += all
|
||||
ifeq ($(KBUILD_EXTMOD),)
|
||||
_all: all
|
||||
else
|
||||
_all: modules
|
||||
endif
|
||||
|
||||
# Decide whether to build built-in, modular, or both.
|
||||
# Normally, just do built-in.
|
||||
|
||||
KBUILD_MODULES :=
|
||||
KBUILD_BUILTIN := 1
|
||||
|
||||
# If we have only "make modules", don't compile built-in objects.
|
||||
# When we're building modules with modversions, we need to consider
|
||||
# the built-in objects during the descend as well, in order to
|
||||
# make sure the checksums are up to date before we record them.
|
||||
|
||||
ifeq ($(MAKECMDGOALS),modules)
|
||||
KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
|
||||
endif
|
||||
|
||||
# If we have "make <whatever> modules", compile modules
|
||||
# in addition to whatever we do anyway.
|
||||
# Just "make" or "make all" shall build modules as well
|
||||
|
||||
ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
|
||||
KBUILD_MODULES := 1
|
||||
endif
|
||||
|
||||
ifeq ($(MAKECMDGOALS),)
|
||||
KBUILD_MODULES := 1
|
||||
endif
|
||||
|
||||
export KBUILD_MODULES KBUILD_BUILTIN
|
||||
|
||||
ifeq ($(KBUILD_EXTMOD),)
|
||||
# Additional helpers built in scripts/
|
||||
# Carefully list dependencies so we do not try to build scripts twice
|
||||
@@ -621,6 +604,11 @@ endif
|
||||
# Defaults to vmlinux, but the arch makefile usually adds further targets
|
||||
all: vmlinux
|
||||
|
||||
KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
|
||||
KBUILD_AFLAGS += $(call cc-option,-fno-PIE)
|
||||
CFLAGS_GCOV := -fprofile-arcs -ftest-coverage -fno-tree-loop-im $(call cc-disable-warning,maybe-uninitialized,)
|
||||
export CFLAGS_GCOV CFLAGS_KCOV
|
||||
|
||||
# The arch Makefile can set ARCH_{CPP,A,C}FLAGS to override the default
|
||||
# values of the respective KBUILD_* variables
|
||||
ARCH_CPPFLAGS :=
|
||||
@@ -652,7 +640,7 @@ KBUILD_CFLAGS += $(call cc-ifversion, -lt, 0409, \
|
||||
KBUILD_CFLAGS += $(call cc-option,--param=allow-store-data-races=0)
|
||||
|
||||
# check for 'asm goto'
|
||||
ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC) $(KBUILD_CFLAGS)), y)
|
||||
ifeq ($(call shell-cached,$(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC) $(KBUILD_CFLAGS)), y)
|
||||
KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO
|
||||
KBUILD_AFLAGS += -DCC_HAVE_ASM_GOTO
|
||||
endif
|
||||
@@ -789,7 +777,7 @@ KBUILD_CFLAGS += $(call cc-option,-fdata-sections,)
|
||||
endif
|
||||
|
||||
# arch Makefile may override CC so keep this after arch Makefile is included
|
||||
NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
|
||||
NOSTDINC_FLAGS += -nostdinc -isystem $(call shell-cached,$(CC) -print-file-name=include)
|
||||
CHECKFLAGS += $(NOSTDINC_FLAGS)
|
||||
|
||||
# warn about C99 declaration after statement
|
||||
@@ -1071,6 +1059,15 @@ prepare0: archprepare gcc-plugins
|
||||
# All the preparing..
|
||||
prepare: prepare0 prepare-objtool
|
||||
|
||||
# Support for using generic headers in asm-generic
|
||||
PHONY += asm-generic uapi-asm-generic
|
||||
asm-generic: uapi-asm-generic
|
||||
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
|
||||
src=asm obj=arch/$(SRCARCH)/include/generated/asm
|
||||
uapi-asm-generic:
|
||||
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
|
||||
src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm
|
||||
|
||||
PHONY += prepare-objtool
|
||||
prepare-objtool: $(objtool_target)
|
||||
|
||||
@@ -1139,8 +1136,8 @@ headerdep:
|
||||
#Default location for installed headers
|
||||
export INSTALL_HDR_PATH = $(objtree)/usr
|
||||
|
||||
# If we do an all arch process set dst to include/arch-$(hdr-arch)
|
||||
hdr-dst = $(if $(KBUILD_HEADERS), dst=include/arch-$(hdr-arch), dst=include)
|
||||
# If we do an all arch process set dst to include/arch-$(SRCARCH)
|
||||
hdr-dst = $(if $(KBUILD_HEADERS), dst=include/arch-$(SRCARCH), dst=include)
|
||||
|
||||
PHONY += archheaders
|
||||
archheaders:
|
||||
@@ -1158,10 +1155,10 @@ headers_install_all:
|
||||
|
||||
PHONY += headers_install
|
||||
headers_install: __headers
|
||||
$(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \
|
||||
$(if $(wildcard $(srctree)/arch/$(SRCARCH)/include/uapi/asm/Kbuild),, \
|
||||
$(error Headers not exportable for the $(SRCARCH) architecture))
|
||||
$(Q)$(MAKE) $(hdr-inst)=include/uapi dst=include
|
||||
$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi $(hdr-dst)
|
||||
$(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi $(hdr-dst)
|
||||
|
||||
PHONY += headers_check_all
|
||||
headers_check_all: headers_install_all
|
||||
@@ -1170,7 +1167,7 @@ headers_check_all: headers_install_all
|
||||
PHONY += headers_check
|
||||
headers_check: headers_install
|
||||
$(Q)$(MAKE) $(hdr-inst)=include/uapi dst=include HDRCHECK=1
|
||||
$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi $(hdr-dst) HDRCHECK=1
|
||||
$(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi $(hdr-dst) HDRCHECK=1
|
||||
|
||||
# ---------------------------------------------------------------------------
|
||||
# Kernel selftest
|
||||
@@ -1283,7 +1280,7 @@ CLEAN_DIRS += $(MODVERDIR)
|
||||
# Directories & files removed with 'make mrproper'
|
||||
MRPROPER_DIRS += include/config usr/include include/generated \
|
||||
arch/*/include/generated .tmp_objdiff
|
||||
MRPROPER_FILES += .config .config.old .version .old_version \
|
||||
MRPROPER_FILES += .config .config.old .version \
|
||||
Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
|
||||
signing_key.pem signing_key.priv signing_key.x509 \
|
||||
x509.genkey extra_certificates signing_key.x509.keyid \
|
||||
@@ -1393,7 +1390,7 @@ help:
|
||||
@echo ' export_report - List the usages of all exported symbols'
|
||||
@echo ' headers_check - Sanity check on exported headers'
|
||||
@echo ' headerdep - Detect inclusion cycles in headers'
|
||||
@$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help
|
||||
@echo ' coccicheck - Check with Coccinelle'
|
||||
@echo ''
|
||||
@echo 'Kernel selftest:'
|
||||
@echo ' kselftest - Build and run kernel selftest (run as root)'
|
||||
@@ -1556,6 +1553,7 @@ clean: $(clean-dirs)
|
||||
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
|
||||
-o -name '*.symtypes' -o -name 'modules.order' \
|
||||
-o -name modules.builtin -o -name '.tmp_*.o.*' \
|
||||
-o -name .cache.mk \
|
||||
-o -name '*.c.[012]*.*' \
|
||||
-o -name '*.ll' \
|
||||
-o -name '*.gcno' \) -type f -print | xargs rm -f
|
||||
@@ -1702,8 +1700,7 @@ cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \
|
||||
|
||||
# read all saved command lines
|
||||
|
||||
targets := $(wildcard $(sort $(targets)))
|
||||
cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
|
||||
cmd_files := $(wildcard .*.cmd $(foreach f,$(sort $(targets)),$(dir $(f)).$(notdir $(f)).cmd))
|
||||
|
||||
ifneq ($(cmd_files),)
|
||||
$(cmd_files): ; # Do not try to update included dependency files
|
||||
|
||||
@@ -16,11 +16,11 @@ LDFLAGS :=
|
||||
LDFLAGS_vmlinux :=-p --no-undefined -X --pic-veneer
|
||||
ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
|
||||
LDFLAGS_vmlinux += --be8
|
||||
LDFLAGS_MODULE += --be8
|
||||
KBUILD_LDFLAGS_MODULE += --be8
|
||||
endif
|
||||
|
||||
ifeq ($(CONFIG_ARM_MODULE_PLTS),y)
|
||||
LDFLAGS_MODULE += -T $(srctree)/arch/arm/kernel/module.lds
|
||||
KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/arm/kernel/module.lds
|
||||
endif
|
||||
|
||||
GZFLAGS :=-9
|
||||
@@ -122,7 +122,7 @@ CFLAGS_ISA :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
|
||||
AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mthumb
|
||||
# Work around buggy relocation from gas if requested:
|
||||
ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y)
|
||||
CFLAGS_MODULE +=-fno-optimize-sibling-calls
|
||||
KBUILD_CFLAGS_MODULE +=-fno-optimize-sibling-calls
|
||||
endif
|
||||
else
|
||||
CFLAGS_ISA :=$(call cc-option,-marm,)
|
||||
|
||||
@@ -12,7 +12,7 @@ cflags-y += -mno-dsbt -msdata=none -D__linux__
|
||||
|
||||
cflags-$(CONFIG_C6X_BIG_KERNEL) += -mlong-calls
|
||||
|
||||
CFLAGS_MODULE += -mlong-calls -mno-dsbt -msdata=none
|
||||
KBUILD_CFLAGS_MODULE += -mlong-calls -mno-dsbt -msdata=none
|
||||
|
||||
CHECKFLAGS +=
|
||||
|
||||
|
||||
1
arch/frv/kernel/.gitignore
vendored
Normal file
1
arch/frv/kernel/.gitignore
vendored
Normal file
@@ -0,0 +1 @@
|
||||
vmlinux.lds
|
||||
@@ -12,9 +12,9 @@ KBUILD_CFLAGS += -fno-short-enums
|
||||
|
||||
# Modules must use either long-calls, or use pic/plt.
|
||||
# Use long-calls for now, it's easier. And faster.
|
||||
# CFLAGS_MODULE += -fPIC
|
||||
# LDFLAGS_MODULE += -shared
|
||||
CFLAGS_MODULE += -mlong-calls
|
||||
# KBUILD_CFLAGS_MODULE += -fPIC
|
||||
# KBUILD_LDFLAGS_MODULE += -shared
|
||||
KBUILD_CFLAGS_MODULE += -mlong-calls
|
||||
|
||||
cflags-y += $(call cc-option,-mv${CONFIG_HEXAGON_ARCH_VERSION})
|
||||
aflags-y += $(call cc-option,-mv${CONFIG_HEXAGON_ARCH_VERSION})
|
||||
|
||||
@@ -18,8 +18,6 @@
|
||||
* 02110-1301, USA.
|
||||
*/
|
||||
|
||||
#include <generated/compile.h>
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/sched.h>
|
||||
#include <linux/sched/task_stack.h>
|
||||
@@ -180,7 +178,7 @@ static const struct user_regset hexagon_regsets[] = {
|
||||
};
|
||||
|
||||
static const struct user_regset_view hexagon_user_view = {
|
||||
.name = UTS_MACHINE,
|
||||
.name = "hexagon",
|
||||
.e_machine = ELF_ARCH,
|
||||
.ei_osabi = ELF_OSABI,
|
||||
.regsets = hexagon_regsets,
|
||||
|
||||
@@ -15,6 +15,12 @@ ifneq ($(SUBARCH),$(ARCH))
|
||||
endif
|
||||
endif
|
||||
|
||||
ifeq ($(ARCH),sh)
|
||||
KBUILD_DEFCONFIG := shx3_defconfig
|
||||
else
|
||||
KBUILD_DEFCONFIG := cayman_defconfig
|
||||
endif
|
||||
|
||||
isa-y := any
|
||||
isa-$(CONFIG_SH_DSP) := sh
|
||||
isa-$(CONFIG_CPU_SH2) := sh2
|
||||
@@ -105,14 +111,12 @@ ifdef CONFIG_SUPERH32
|
||||
UTS_MACHINE := sh
|
||||
BITS := 32
|
||||
LDFLAGS_vmlinux += -e _stext
|
||||
KBUILD_DEFCONFIG := shx3_defconfig
|
||||
else
|
||||
UTS_MACHINE := sh64
|
||||
BITS := 64
|
||||
LDFLAGS_vmlinux += --defsym phys_stext=_stext-$(CONFIG_PAGE_OFFSET) \
|
||||
--defsym phys_stext_shmedia=phys_stext+1 \
|
||||
-e phys_stext_shmedia
|
||||
KBUILD_DEFCONFIG := cayman_defconfig
|
||||
endif
|
||||
|
||||
ifdef CONFIG_CPU_LITTLE_ENDIAN
|
||||
|
||||
5
arch/sh/boot/compressed/.gitignore
vendored
5
arch/sh/boot/compressed/.gitignore
vendored
@@ -1 +1,6 @@
|
||||
ashiftrt.S
|
||||
ashldi3.c
|
||||
ashlsi3.S
|
||||
ashrsi3.S
|
||||
lshrsi3.S
|
||||
vmlinux.bin.*
|
||||
|
||||
@@ -130,10 +130,6 @@ $(obj)/vdsox32.so.dbg: $(src)/vdsox32.lds $(vobjx32s) FORCE
|
||||
CPPFLAGS_vdso32.lds = $(CPPFLAGS_vdso.lds)
|
||||
VDSO_LDFLAGS_vdso32.lds = -m32 -Wl,-m,elf_i386 -Wl,-soname=linux-gate.so.1
|
||||
|
||||
# This makes sure the $(obj) subdirectory exists even though vdso32/
|
||||
# is not a kbuild sub-make subdirectory.
|
||||
override obj-dirs = $(dir $(obj)) $(obj)/vdso32/
|
||||
|
||||
targets += vdso32/vdso32.lds
|
||||
targets += vdso32/note.o vdso32/system_call.o vdso32/sigreturn.o
|
||||
targets += vdso32/vclock_gettime.o
|
||||
|
||||
@@ -8,6 +8,8 @@ squote := '
|
||||
empty :=
|
||||
space := $(empty) $(empty)
|
||||
space_escape := _-_SPACE_-_
|
||||
right_paren := )
|
||||
left_paren := (
|
||||
|
||||
###
|
||||
# Name of target with a '.' as filename prefix. foo/bar.o => foo/.bar.o
|
||||
@@ -80,6 +82,71 @@ cc-cross-prefix = \
|
||||
echo $(c); \
|
||||
fi)))
|
||||
|
||||
# Tools for caching Makefile variables that are "expensive" to compute.
|
||||
#
|
||||
# Here we want to help deal with variables that take a long time to compute
|
||||
# by making it easy to store these variables in a cache.
|
||||
#
|
||||
# The canonical example here is testing for compiler flags. On a simple system
|
||||
# each call to the compiler takes 10 ms, but on a system with a compiler that's
|
||||
# called through various wrappers it can take upwards of 100 ms. If we have
|
||||
# 100 calls to the compiler this can take 1 second (on a simple system) or 10
|
||||
# seconds (on a complicated system).
|
||||
#
|
||||
# The "cache" will be in Makefile syntax and can be directly included.
|
||||
# Any time we try to reference a variable that's not in the cache we'll
|
||||
# calculate it and store it in the cache for next time.
|
||||
|
||||
# Include values from last time
|
||||
make-cache := $(if $(KBUILD_EXTMOD),$(KBUILD_EXTMOD)/,$(if $(obj),$(obj)/)).cache.mk
|
||||
$(make-cache): ;
|
||||
-include $(make-cache)
|
||||
|
||||
cached-data := $(filter __cached_%, $(.VARIABLES))
|
||||
|
||||
# If cache exceeds 1000 lines, shrink it down to 500.
|
||||
ifneq ($(word 1000,$(cached-data)),)
|
||||
$(shell tail -n 500 $(make-cache) > $(make-cache).tmp; \
|
||||
mv $(make-cache).tmp $(make-cache))
|
||||
endif
|
||||
|
||||
create-cache-dir := $(if $(KBUILD_SRC),$(if $(cache-data),,1))
|
||||
|
||||
# Usage: $(call __sanitize-opt,Hello=Hola$(comma)Goodbye Adios)
|
||||
#
|
||||
# Convert all '$', ')', '(', '\', '=', ' ', ',', ':' to '_'
|
||||
__sanitize-opt = $(subst $$,_,$(subst $(right_paren),_,$(subst $(left_paren),_,$(subst \,_,$(subst =,_,$(subst $(space),_,$(subst $(comma),_,$(subst :,_,$(1)))))))))
|
||||
|
||||
# Usage: $(call shell-cached,shell_command)
|
||||
# Example: $(call shell-cached,md5sum /usr/bin/gcc)
|
||||
#
|
||||
# If we've already seen a call to this exact shell command (even in a
|
||||
# previous invocation of make!) we'll return the value. If not, we'll
|
||||
# compute it and store the result for future runs.
|
||||
#
|
||||
# This is a bit of voodoo, but basic explanation is that if the variable
|
||||
# was undefined then we'll evaluate the shell command and store the result
|
||||
# into the variable. We'll then store that value in the cache and finally
|
||||
# output the value.
|
||||
#
|
||||
# NOTE: The $$(2) here isn't actually a parameter to __run-and-store. We
|
||||
# happen to know that the caller will have their shell command in $(2) so the
|
||||
# result of "call"ing this will produce a reference to that $(2). The reason
|
||||
# for this strangeness is to avoid an extra level of eval (and escaping) of
|
||||
# $(2).
|
||||
define __run-and-store
|
||||
ifeq ($(origin $(1)),undefined)
|
||||
$$(eval $(1) := $$(shell $$(2)))
|
||||
ifeq ($(create-cache-dir),1)
|
||||
$$(shell mkdir -p $(dir $(make-cache)))
|
||||
$$(eval create-cache-dir :=)
|
||||
endif
|
||||
$$(shell echo '$(1) := $$($(1))' >> $(make-cache))
|
||||
endif
|
||||
endef
|
||||
__shell-cached = $(eval $(call __run-and-store,$(1)))$($(1))
|
||||
shell-cached = $(call __shell-cached,__cached_$(call __sanitize-opt,$(1)),$(1))
|
||||
|
||||
# output directory for tests below
|
||||
TMPOUT := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/)
|
||||
|
||||
@@ -87,30 +154,36 @@ TMPOUT := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/)
|
||||
# Usage: option = $(call try-run, $(CC)...-o "$$TMP",option-ok,otherwise)
|
||||
# Exit code chooses option. "$$TMP" serves as a temporary file and is
|
||||
# automatically cleaned up.
|
||||
try-run = $(shell set -e; \
|
||||
__try-run = set -e; \
|
||||
TMP="$(TMPOUT).$$$$.tmp"; \
|
||||
TMPO="$(TMPOUT).$$$$.o"; \
|
||||
if ($(1)) >/dev/null 2>&1; \
|
||||
then echo "$(2)"; \
|
||||
else echo "$(3)"; \
|
||||
fi; \
|
||||
rm -f "$$TMP" "$$TMPO")
|
||||
rm -f "$$TMP" "$$TMPO"
|
||||
|
||||
try-run = $(shell $(__try-run))
|
||||
|
||||
# try-run-cached
|
||||
# This works like try-run, but the result is cached.
|
||||
try-run-cached = $(call shell-cached,$(__try-run))
|
||||
|
||||
# as-option
|
||||
# Usage: cflags-y += $(call as-option,-Wa$(comma)-isa=foo,)
|
||||
|
||||
as-option = $(call try-run,\
|
||||
as-option = $(call try-run-cached,\
|
||||
$(CC) $(KBUILD_CFLAGS) $(1) -c -x assembler /dev/null -o "$$TMP",$(1),$(2))
|
||||
|
||||
# as-instr
|
||||
# Usage: cflags-y += $(call as-instr,instr,option1,option2)
|
||||
|
||||
as-instr = $(call try-run,\
|
||||
as-instr = $(call try-run-cached,\
|
||||
printf "%b\n" "$(1)" | $(CC) $(KBUILD_AFLAGS) -c -x assembler -o "$$TMP" -,$(2),$(3))
|
||||
|
||||
# __cc-option
|
||||
# Usage: MY_CFLAGS += $(call __cc-option,$(CC),$(MY_CFLAGS),-march=winchip-c6,-march=i586)
|
||||
__cc-option = $(call try-run,\
|
||||
__cc-option = $(call try-run-cached,\
|
||||
$(1) -Werror $(2) $(3) -c -x c /dev/null -o "$$TMP",$(3),$(4))
|
||||
|
||||
# Do not attempt to build with gcc plugins during cc-option tests.
|
||||
@@ -130,23 +203,23 @@ hostcc-option = $(call __cc-option, $(HOSTCC),\
|
||||
|
||||
# cc-option-yn
|
||||
# Usage: flag := $(call cc-option-yn,-march=winchip-c6)
|
||||
cc-option-yn = $(call try-run,\
|
||||
cc-option-yn = $(call try-run-cached,\
|
||||
$(CC) -Werror $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",y,n)
|
||||
|
||||
# cc-disable-warning
|
||||
# Usage: cflags-y += $(call cc-disable-warning,unused-but-set-variable)
|
||||
cc-disable-warning = $(call try-run,\
|
||||
cc-disable-warning = $(call try-run-cached,\
|
||||
$(CC) -Werror $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1)))
|
||||
|
||||
# cc-name
|
||||
# Expands to either gcc or clang
|
||||
cc-name = $(shell $(CC) -v 2>&1 | grep -q "clang version" && echo clang || echo gcc)
|
||||
cc-name = $(call shell-cached,$(CC) -v 2>&1 | grep -q "clang version" && echo clang || echo gcc)
|
||||
|
||||
# cc-version
|
||||
cc-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh $(CC))
|
||||
cc-version = $(call shell-cached,$(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh $(CC))
|
||||
|
||||
# cc-fullversion
|
||||
cc-fullversion = $(shell $(CONFIG_SHELL) \
|
||||
cc-fullversion = $(call shell-cached,$(CONFIG_SHELL) \
|
||||
$(srctree)/scripts/gcc-version.sh -p $(CC))
|
||||
|
||||
# cc-ifversion
|
||||
@@ -159,22 +232,23 @@ cc-if-fullversion = $(shell [ $(cc-fullversion) $(1) $(2) ] && echo $(3) || echo
|
||||
|
||||
# cc-ldoption
|
||||
# Usage: ldflags += $(call cc-ldoption, -Wl$(comma)--hash-style=both)
|
||||
cc-ldoption = $(call try-run,\
|
||||
$(CC) $(1) -nostdlib -x c /dev/null -o "$$TMP",$(1),$(2))
|
||||
cc-ldoption = $(call try-run-cached,\
|
||||
$(CC) $(1) $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) -nostdlib -x c /dev/null -o "$$TMP",$(1),$(2))
|
||||
|
||||
# ld-option
|
||||
# Usage: LDFLAGS += $(call ld-option, -X)
|
||||
ld-option = $(call try-run,\
|
||||
$(CC) -x c /dev/null -c -o "$$TMPO" ; $(LD) $(1) "$$TMPO" -o "$$TMP",$(1),$(2))
|
||||
ld-option = $(call try-run-cached,\
|
||||
$(CC) $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) -x c /dev/null -c -o "$$TMPO"; \
|
||||
$(LD) $(LDFLAGS) $(1) "$$TMPO" -o "$$TMP",$(1),$(2))
|
||||
|
||||
# ar-option
|
||||
# Usage: KBUILD_ARFLAGS := $(call ar-option,D)
|
||||
# Important: no spaces around options
|
||||
ar-option = $(call try-run, $(AR) rc$(1) "$$TMP",$(1),$(2))
|
||||
ar-option = $(call try-run-cached, $(AR) rc$(1) "$$TMP",$(1),$(2))
|
||||
|
||||
# ld-version
|
||||
# Note this is mainly for HJ Lu's 3 number binutil versions
|
||||
ld-version = $(shell $(LD) --version | $(srctree)/scripts/ld-version.sh)
|
||||
ld-version = $(call shell-cached,$(LD) --version | $(srctree)/scripts/ld-version.sh)
|
||||
|
||||
# ld-ifversion
|
||||
# Usage: $(call ld-ifversion, -ge, 22252, y)
|
||||
|
||||
@@ -6,6 +6,9 @@
|
||||
# and for each file listed in this file with generic-y creates
|
||||
# a small wrapper file in $(obj) (arch/$(SRCARCH)/include/generated/$(src))
|
||||
|
||||
PHONY := all
|
||||
all:
|
||||
|
||||
kbuild-file := $(srctree)/arch/$(SRCARCH)/include/$(src)/Kbuild
|
||||
-include $(kbuild-file)
|
||||
|
||||
|
||||
@@ -65,15 +65,6 @@ ifneq ($(hostprogs-y)$(hostprogs-m)$(hostlibs-y)$(hostlibs-m)$(hostcxxlibs-y)$(h
|
||||
include scripts/Makefile.host
|
||||
endif
|
||||
|
||||
ifneq ($(KBUILD_SRC),)
|
||||
# Create output directory if not already present
|
||||
_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
|
||||
|
||||
# Create directories for object files if directory does not exist
|
||||
# Needed when obj-y := dir/file.o syntax is used
|
||||
_dummy := $(foreach d,$(obj-dirs), $(shell [ -d $(d) ] || mkdir -p $(d)))
|
||||
endif
|
||||
|
||||
ifndef obj
|
||||
$(warning kbuild: Makefile.build is included improperly)
|
||||
endif
|
||||
@@ -563,7 +554,7 @@ $(multi-used-m): FORCE
|
||||
$(call multi_depend, $(multi-used-m), .o, -objs -y -m)
|
||||
|
||||
targets += $(multi-used-y) $(multi-used-m)
|
||||
|
||||
targets := $(filter-out $(PHONY), $(targets))
|
||||
|
||||
# Descending
|
||||
# ---------------------------------------------------------------------------
|
||||
@@ -584,13 +575,23 @@ FORCE:
|
||||
# optimization, we don't need to read them if the target does not
|
||||
# exist, we will rebuild anyway in that case.
|
||||
|
||||
targets := $(wildcard $(sort $(targets)))
|
||||
cmd_files := $(wildcard $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
|
||||
cmd_files := $(wildcard $(foreach f,$(sort $(targets)),$(dir $(f)).$(notdir $(f)).cmd))
|
||||
|
||||
ifneq ($(cmd_files),)
|
||||
include $(cmd_files)
|
||||
endif
|
||||
|
||||
ifneq ($(KBUILD_SRC),)
|
||||
# Create directories for object files if they do not exist
|
||||
obj-dirs := $(sort $(obj) $(patsubst %/,%, $(dir $(targets))))
|
||||
# If cmd_files exist, their directories apparently exist. Skip mkdir.
|
||||
exist-dirs := $(sort $(patsubst %/,%, $(dir $(cmd_files))))
|
||||
obj-dirs := $(strip $(filter-out $(exist-dirs), $(obj-dirs)))
|
||||
ifneq ($(obj-dirs),)
|
||||
$(shell mkdir -p $(obj-dirs))
|
||||
endif
|
||||
endif
|
||||
|
||||
# Declare the contents of the .PHONY variable as phony. We keep that
|
||||
# information in a variable se we can use it in if_changed and friends.
|
||||
|
||||
|
||||
@@ -27,11 +27,11 @@ subdirs := $(patsubst $(srcdir)/%/,%,\
|
||||
# Recursion
|
||||
__headers: $(subdirs)
|
||||
|
||||
.PHONY: $(subdirs)
|
||||
PHONY += $(subdirs)
|
||||
$(subdirs):
|
||||
$(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(dst)/$@
|
||||
|
||||
# Skip header install/check for include/uapi and arch/$(hdr-arch)/include/uapi.
|
||||
# Skip header install/check for include/uapi and arch/$(SRCARCH)/include/uapi.
|
||||
# We have only sub-directories there.
|
||||
skip-inst := $(if $(filter %/uapi,$(obj)),1)
|
||||
|
||||
@@ -115,9 +115,8 @@ $(check-file): scripts/headers_check.pl $(output-files) FORCE
|
||||
|
||||
endif
|
||||
|
||||
targets := $(wildcard $(sort $(targets)))
|
||||
cmd_files := $(wildcard \
|
||||
$(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
|
||||
$(foreach f,$(sort $(targets)),$(dir $(f)).$(notdir $(f)).cmd))
|
||||
|
||||
ifneq ($(cmd_files),)
|
||||
include $(cmd_files)
|
||||
@@ -125,6 +124,7 @@ endif
|
||||
|
||||
endif # skip-inst
|
||||
|
||||
.PHONY: $(PHONY)
|
||||
PHONY += FORCE
|
||||
FORCE: ;
|
||||
|
||||
.PHONY: $(PHONY)
|
||||
|
||||
@@ -1,3 +0,0 @@
|
||||
|
||||
checker-help:
|
||||
@echo ' coccicheck - Check with Coccinelle.'
|
||||
@@ -49,15 +49,6 @@ host-cxxobjs := $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs)))
|
||||
host-cshobjs := $(sort $(foreach m,$(host-cshlib),$($(m:.so=-objs))))
|
||||
host-cxxshobjs := $(sort $(foreach m,$(host-cxxshlib),$($(m:.so=-objs))))
|
||||
|
||||
# output directory for programs/.o files
|
||||
# hostprogs-y := tools/build may have been specified.
|
||||
# Retrieve also directory of .o files from prog-objs or prog-cxxobjs notation
|
||||
host-objdirs := $(dir $(__hostprogs) $(host-cobjs) $(host-cxxobjs))
|
||||
|
||||
host-objdirs := $(strip $(sort $(filter-out ./,$(host-objdirs))))
|
||||
|
||||
|
||||
__hostprogs := $(addprefix $(obj)/,$(__hostprogs))
|
||||
host-csingle := $(addprefix $(obj)/,$(host-csingle))
|
||||
host-cmulti := $(addprefix $(obj)/,$(host-cmulti))
|
||||
host-cobjs := $(addprefix $(obj)/,$(host-cobjs))
|
||||
@@ -67,9 +58,6 @@ host-cshlib := $(addprefix $(obj)/,$(host-cshlib))
|
||||
host-cxxshlib := $(addprefix $(obj)/,$(host-cxxshlib))
|
||||
host-cshobjs := $(addprefix $(obj)/,$(host-cshobjs))
|
||||
host-cxxshobjs := $(addprefix $(obj)/,$(host-cxxshobjs))
|
||||
host-objdirs := $(addprefix $(obj)/,$(host-objdirs))
|
||||
|
||||
obj-dirs += $(host-objdirs)
|
||||
|
||||
#####
|
||||
# Handle options to gcc. Support building with separate output directory
|
||||
|
||||
@@ -5,24 +5,25 @@ ccflags-y += $(EXTRA_CFLAGS)
|
||||
cppflags-y += $(EXTRA_CPPFLAGS)
|
||||
ldflags-y += $(EXTRA_LDFLAGS)
|
||||
|
||||
#
|
||||
# flags that take effect in sub directories
|
||||
export KBUILD_SUBDIR_ASFLAGS := $(KBUILD_SUBDIR_ASFLAGS) $(subdir-asflags-y)
|
||||
export KBUILD_SUBDIR_CCFLAGS := $(KBUILD_SUBDIR_CCFLAGS) $(subdir-ccflags-y)
|
||||
# flags that take effect in current and sub directories
|
||||
KBUILD_AFLAGS += $(subdir-asflags-y)
|
||||
KBUILD_CFLAGS += $(subdir-ccflags-y)
|
||||
|
||||
# Figure out what we need to build from the various variables
|
||||
# ===========================================================================
|
||||
|
||||
# When an object is listed to be built compiled-in and modular,
|
||||
# only build the compiled-in version
|
||||
|
||||
obj-m := $(filter-out $(obj-y),$(obj-m))
|
||||
|
||||
# Libraries are always collected in one lib file.
|
||||
# Filter out objects already built-in
|
||||
|
||||
lib-y := $(filter-out $(obj-y), $(sort $(lib-y) $(lib-m)))
|
||||
|
||||
# Determine modorder.
|
||||
# Unfortunately, we don't have information about ordering between -y
|
||||
# and -m subdirs. Just put -y's first.
|
||||
modorder := $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m:.o=.ko))
|
||||
|
||||
# Handle objects in subdirs
|
||||
# ---------------------------------------------------------------------------
|
||||
@@ -30,12 +31,6 @@ lib-y := $(filter-out $(obj-y), $(sort $(lib-y) $(lib-m)))
|
||||
# and add the directory to the list of dirs to descend into: $(subdir-y)
|
||||
# o if we encounter foo/ in $(obj-m), remove it from $(obj-m)
|
||||
# and add the directory to the list of dirs to descend into: $(subdir-m)
|
||||
|
||||
# Determine modorder.
|
||||
# Unfortunately, we don't have information about ordering between -y
|
||||
# and -m subdirs. Just put -y's first.
|
||||
modorder := $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m:.o=.ko))
|
||||
|
||||
__subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y)))
|
||||
subdir-y += $(__subdir-y)
|
||||
__subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m)))
|
||||
@@ -44,10 +39,9 @@ obj-y := $(patsubst %/, %/built-in.o, $(obj-y))
|
||||
obj-m := $(filter-out %/, $(obj-m))
|
||||
|
||||
# Subdirectories we need to descend into
|
||||
|
||||
subdir-ym := $(sort $(subdir-y) $(subdir-m))
|
||||
|
||||
# if $(foo-objs) exists, foo.o is a composite object
|
||||
# if $(foo-objs), $(foo-y), or $(foo-m) exists, foo.o is a composite object
|
||||
multi-used-y := $(sort $(foreach m,$(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m))))
|
||||
multi-used-m := $(sort $(foreach m,$(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m))), $(m))))
|
||||
multi-used := $(multi-used-y) $(multi-used-m)
|
||||
@@ -57,15 +51,11 @@ single-used-m := $(sort $(filter-out $(multi-used-m),$(obj-m)))
|
||||
# objects depend on those (obviously)
|
||||
multi-objs-y := $(foreach m, $(multi-used-y), $($(m:.o=-objs)) $($(m:.o=-y)))
|
||||
multi-objs-m := $(foreach m, $(multi-used-m), $($(m:.o=-objs)) $($(m:.o=-y)))
|
||||
multi-objs := $(multi-objs-y) $(multi-objs-m)
|
||||
|
||||
# $(subdir-obj-y) is the list of objects in $(obj-y) which uses dir/ to
|
||||
# tell kbuild to descend
|
||||
subdir-obj-y := $(filter %/built-in.o, $(obj-y))
|
||||
|
||||
# $(obj-dirs) is a list of directories that contain object files
|
||||
obj-dirs := $(dir $(multi-objs) $(obj-y))
|
||||
|
||||
# Replace multi-part objects by their individual parts, look at local dir only
|
||||
real-objs-y := $(foreach m, $(filter-out $(subdir-obj-y), $(obj-y)), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m))) $(extra-y)
|
||||
real-objs-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m))),$($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m)),$(m)))
|
||||
@@ -93,11 +83,9 @@ multi-used-m := $(addprefix $(obj)/,$(multi-used-m))
|
||||
multi-objs-y := $(addprefix $(obj)/,$(multi-objs-y))
|
||||
multi-objs-m := $(addprefix $(obj)/,$(multi-objs-m))
|
||||
subdir-ym := $(addprefix $(obj)/,$(subdir-ym))
|
||||
obj-dirs := $(addprefix $(obj)/,$(obj-dirs))
|
||||
|
||||
# These flags are needed for modversions and compiling, so we define them here
|
||||
# already
|
||||
# $(modname_flags) #defines KBUILD_MODNAME as the name of the module it will
|
||||
# $(modname_flags) defines KBUILD_MODNAME as the name of the module it will
|
||||
# end up in (or would, if it gets compiled in)
|
||||
# Note: Files that end up in two or more modules are compiled without the
|
||||
# KBUILD_MODNAME definition. The reason is that any made-up name would
|
||||
@@ -107,10 +95,10 @@ basename_flags = -DKBUILD_BASENAME=$(call name-fix,$(basetarget))
|
||||
modname_flags = $(if $(filter 1,$(words $(modname))),\
|
||||
-DKBUILD_MODNAME=$(call name-fix,$(modname)))
|
||||
|
||||
orig_c_flags = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(KBUILD_SUBDIR_CCFLAGS) \
|
||||
orig_c_flags = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) \
|
||||
$(ccflags-y) $(CFLAGS_$(basetarget).o)
|
||||
_c_flags = $(filter-out $(CFLAGS_REMOVE_$(basetarget).o), $(orig_c_flags))
|
||||
orig_a_flags = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) $(KBUILD_SUBDIR_ASFLAGS) \
|
||||
orig_a_flags = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) \
|
||||
$(asflags-y) $(AFLAGS_$(basetarget).o)
|
||||
_a_flags = $(filter-out $(AFLAGS_REMOVE_$(basetarget).o), $(orig_a_flags))
|
||||
_cpp_flags = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F))
|
||||
|
||||
@@ -143,8 +143,7 @@ FORCE:
|
||||
# optimization, we don't need to read them if the target does not
|
||||
# exist, we will rebuild anyway in that case.
|
||||
|
||||
targets := $(wildcard $(sort $(targets)))
|
||||
cmd_files := $(wildcard $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
|
||||
cmd_files := $(wildcard $(foreach f,$(sort $(targets)),$(dir $(f)).$(notdir $(f)).cmd))
|
||||
|
||||
ifneq ($(cmd_files),)
|
||||
include $(cmd_files)
|
||||
|
||||
@@ -188,10 +188,8 @@ sortextable()
|
||||
# Delete output files in case of error
|
||||
cleanup()
|
||||
{
|
||||
rm -f .old_version
|
||||
rm -f .tmp_System.map
|
||||
rm -f .tmp_kallsyms*
|
||||
rm -f .tmp_version
|
||||
rm -f .tmp_vmlinux*
|
||||
rm -f built-in.o
|
||||
rm -f System.map
|
||||
@@ -239,12 +237,12 @@ esac
|
||||
|
||||
# Update version
|
||||
info GEN .version
|
||||
if [ ! -r .version ]; then
|
||||
rm -f .version;
|
||||
echo 1 >.version;
|
||||
if [ -r .version ]; then
|
||||
VERSION=$(expr 0$(cat .version) + 1)
|
||||
echo $VERSION > .version
|
||||
else
|
||||
mv .version .old_version;
|
||||
expr 0$(cat .old_version) + 1 >.version;
|
||||
rm -f .version
|
||||
echo 1 > .version
|
||||
fi;
|
||||
|
||||
# final build of init/
|
||||
@@ -332,6 +330,3 @@ if [ -n "${CONFIG_KALLSYMS}" ]; then
|
||||
exit 1
|
||||
fi
|
||||
fi
|
||||
|
||||
# We made a new kernel - delete old version file
|
||||
rm -f .old_version
|
||||
|
||||
@@ -28,12 +28,7 @@ LC_ALL=C
|
||||
export LC_ALL
|
||||
|
||||
if [ -z "$KBUILD_BUILD_VERSION" ]; then
|
||||
if [ -r .version ]; then
|
||||
VERSION=`cat .version`
|
||||
else
|
||||
VERSION=0
|
||||
echo 0 > .version
|
||||
fi
|
||||
VERSION=$(cat .version 2>/dev/null || echo 1)
|
||||
else
|
||||
VERSION=$KBUILD_BUILD_VERSION
|
||||
fi
|
||||
|
||||
@@ -1,2 +1 @@
|
||||
subdir-y := mdp genheaders
|
||||
subdir- += mdp genheaders
|
||||
|
||||
Reference in New Issue
Block a user