PYTHON3 = python3
CHECK = sparse
BASH = bash
+GZIP = gzip
+BZIP2 = bzip2
+LZOP = lzop
+LZMA = lzma
+LZ4 = lz4c
+XZ = xz
+
+# GZIP, BZIP2, LZOP env vars are used by the tools. Support them as the command
+# line interface, but use _GZIP, _BZIP2, _LZOP internally.
+_GZIP := $(GZIP)
+_BZIP2 := $(BZIP2)
+_LZOP := $(LZOP)
+
+# Reset GZIP, BZIP2, LZOP in this Makefile
+override GZIP=
+override BZIP2=
+override LZOP=
+
+# Reset GZIP, BZIP2, LZOP in recursive invocations
+MAKEOVERRIDES += GZIP= BZIP2= LZOP=
CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
-Wbitwise -Wno-return-void -Wno-unknown-attribute $(CF)
export ARCH SRCARCH CONFIG_SHELL BASH HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE LD CC
export CPP AR NM STRIP OBJCOPY OBJDUMP OBJSIZE READELF PAHOLE LEX YACC AWK INSTALLKERNEL
export PERL PYTHON PYTHON3 CHECK CHECKFLAGS MAKE UTS_MACHINE HOSTCXX
+export _GZIP _BZIP2 _LZOP LZMA LZ4 XZ
export KBUILD_HOSTCXXFLAGS KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS LDFLAGS_MODULE
export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS
KBUILD_BUILTIN := 1
# If we have only "make modules", don't compile built-in objects.
-# When we're building modules with modversions, we need to consider
-# the built-in objects during the descend as well, in order to
-# make sure the checksums are up to date before we record them.
-
ifeq ($(MAKECMDGOALS),modules)
- KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
+ KBUILD_BUILTIN :=
endif
# If we have "make <whatever> modules", compile modules
ifeq ($(KBUILD_EXTMOD),)
# Objects we will link into vmlinux / subdirs we need to visit
-init-y := init/
+core-y := init/ usr/
drivers-y := drivers/ sound/
drivers-$(CONFIG_SAMPLES) += samples/
-net-y := net/
+drivers-y += net/ virt/
libs-y := lib/
-core-y := usr/
-virt-y := virt/
endif # KBUILD_EXTMOD
# The all: target is the default when no target is given on the
$(call cc-option,-fno-var-tracking)
endif
+ifdef CONFIG_DEBUG_INFO_COMPRESSED
+DEBUG_CFLAGS += -gz=zlib
+KBUILD_AFLAGS += -Wa,--compress-debug-sections=zlib
+KBUILD_LDFLAGS += --compress-debug-sections=zlib
+endif
+
KBUILD_CFLAGS += $(DEBUG_CFLAGS)
export DEBUG_CFLAGS
mod_compress_cmd = true
ifdef CONFIG_MODULE_COMPRESS
ifdef CONFIG_MODULE_COMPRESS_GZIP
- mod_compress_cmd = gzip -n -f
+ mod_compress_cmd = $(_GZIP) -n -f
endif # CONFIG_MODULE_COMPRESS_GZIP
ifdef CONFIG_MODULE_COMPRESS_XZ
- mod_compress_cmd = xz -f
+ mod_compress_cmd = $(XZ) -f
endif # CONFIG_MODULE_COMPRESS_XZ
endif # CONFIG_MODULE_COMPRESS
export mod_compress_cmd
ifeq ($(KBUILD_EXTMOD),)
core-y += kernel/ certs/ mm/ fs/ ipc/ security/ crypto/ block/
-vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
+vmlinux-dirs := $(patsubst %/,%,$(filter %/, \
$(core-y) $(core-m) $(drivers-y) $(drivers-m) \
- $(net-y) $(net-m) $(libs-y) $(libs-m) $(virt-y)))
+ $(libs-y) $(libs-m)))
vmlinux-alldirs := $(sort $(vmlinux-dirs) Documentation \
- $(patsubst %/,%,$(filter %/, $(init-) $(core-) \
- $(drivers-) $(net-) $(libs-) $(virt-))))
+ $(patsubst %/,%,$(filter %/, $(core-) \
+ $(drivers-) $(libs-))))
+
+subdir-modorder := $(addsuffix modules.order,$(filter %/, \
+ $(core-y) $(core-m) $(libs-y) $(libs-m) \
+ $(drivers-y) $(drivers-m)))
build-dirs := $(vmlinux-dirs)
clean-dirs := $(vmlinux-alldirs)
-init-y := $(patsubst %/, %/built-in.a, $(init-y))
-core-y := $(patsubst %/, %/built-in.a, $(core-y))
-drivers-y := $(patsubst %/, %/built-in.a, $(drivers-y))
-net-y := $(patsubst %/, %/built-in.a, $(net-y))
-libs-y2 := $(patsubst %/, %/built-in.a, $(filter %/, $(libs-y)))
+# Externally visible symbols (used by link-vmlinux.sh)
+KBUILD_VMLINUX_OBJS := $(head-y) $(patsubst %/,%/built-in.a, $(core-y))
+KBUILD_VMLINUX_OBJS += $(addsuffix built-in.a, $(filter %/, $(libs-y)))
ifdef CONFIG_MODULES
-libs-y1 := $(filter-out %/, $(libs-y))
-libs-y2 += $(patsubst %/, %/lib.a, $(filter %/, $(libs-y)))
+KBUILD_VMLINUX_OBJS += $(patsubst %/, %/lib.a, $(filter %/, $(libs-y)))
+KBUILD_VMLINUX_LIBS := $(filter-out %/, $(libs-y))
else
-libs-y1 := $(patsubst %/, %/lib.a, $(libs-y))
+KBUILD_VMLINUX_LIBS := $(patsubst %/,%/lib.a, $(libs-y))
endif
-virt-y := $(patsubst %/, %/built-in.a, $(virt-y))
+KBUILD_VMLINUX_OBJS += $(patsubst %/,%/built-in.a, $(drivers-y))
-# Externally visible symbols (used by link-vmlinux.sh)
-export KBUILD_VMLINUX_OBJS := $(head-y) $(init-y) $(core-y) $(libs-y2) \
- $(drivers-y) $(net-y) $(virt-y)
-export KBUILD_VMLINUX_LIBS := $(libs-y1)
+export KBUILD_VMLINUX_OBJS KBUILD_VMLINUX_LIBS
export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds
export LDFLAGS_vmlinux
# used by scripts/Makefile.package
# Recurse until adjust_autoksyms.sh is satisfied
PHONY += autoksyms_recursive
ifdef CONFIG_TRIM_UNUSED_KSYMS
-autoksyms_recursive: descend modules.order
- $(Q)$(CONFIG_SHELL) $(srctree)/scripts/adjust_autoksyms.sh \
- "$(MAKE) -f $(srctree)/Makefile vmlinux"
-endif
-
# For the kernel to actually contain only the needed exported symbols,
# we have to build modules as well to determine what those symbols are.
# (this can be evaluated only once include/config/auto.conf has been included)
-ifdef CONFIG_TRIM_UNUSED_KSYMS
- KBUILD_MODULES := 1
+KBUILD_MODULES := 1
+
+autoksyms_recursive: descend modules.order
+ $(Q)$(CONFIG_SHELL) $(srctree)/scripts/adjust_autoksyms.sh \
+ "$(MAKE) -f $(srctree)/Makefile vmlinux"
endif
autoksyms_h := $(if $(CONFIG_TRIM_UNUSED_KSYMS), include/generated/autoksyms.h)
# The actual objects are generated when descending,
# make sure no implicit rule kicks in
-$(sort $(vmlinux-deps)): descend ;
+$(sort $(vmlinux-deps) $(subdir-modorder)): descend ;
filechk_kernel.release = \
echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
# ---------------------------------------------------------------------------
# Modules
+# install modules.builtin regardless of CONFIG_MODULES
+PHONY += _builtin_inst_
+_builtin_inst_:
+ @mkdir -p $(MODLIB)/
+ @cp -f modules.builtin $(MODLIB)/
+ @cp -f $(objtree)/modules.builtin.modinfo $(MODLIB)/
+
+PHONY += install
+install: _builtin_inst_
+
ifdef CONFIG_MODULES
# By default, build modules as well
all: modules
+# When we're building modules with modversions, we need to consider
+# the built-in objects during the descend as well, in order to
+# make sure the checksums are up to date before we record them.
+ifdef CONFIG_MODVERSIONS
+ KBUILD_BUILTIN := 1
+endif
+
# Build modules
#
# A module can be listed more than once in obj-m resulting in
modules_check: modules.order
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/modules-check.sh $<
-modules.order: descend
- $(Q)$(AWK) '!x[$$0]++' $(addsuffix /$@, $(build-dirs)) > $@
+cmd_modules_order = $(AWK) '!x[$$0]++' $(real-prereqs) > $@
+
+modules.order: $(subdir-modorder) FORCE
+ $(call if_changed,modules_order)
+
+targets += modules.order
# Target to prepare building external modules
PHONY += modules_prepare
modules_install: _modinst_ _modinst_post
PHONY += _modinst_
-_modinst_:
+_modinst_: _builtin_inst_
@rm -rf $(MODLIB)/kernel
@rm -f $(MODLIB)/source
@mkdir -p $(MODLIB)/kernel
ln -s $(CURDIR) $(MODLIB)/build ; \
fi
@sed 's:^:kernel/:' modules.order > $(MODLIB)/modules.order
- @cp -f modules.builtin $(MODLIB)/
- @cp -f $(objtree)/modules.builtin.modinfo $(MODLIB)/
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
# This depmod is only for convenience to give the initial
# make distclean Remove editor backup files, patch leftover files and the like
# Directories & files removed with 'make clean'
-CLEAN_FILES += include/ksym \
+CLEAN_FILES += include/ksym vmlinux.symvers \
modules.builtin modules.builtin.modinfo modules.nsdeps
# Directories & files removed with 'make mrproper'
# We are always building modules
KBUILD_MODULES := 1
-PHONY += $(objtree)/Module.symvers
-$(objtree)/Module.symvers:
- @test -e $(objtree)/Module.symvers || ( \
- echo; \
- echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \
- echo " is missing; modules will have no dependencies and modversions."; \
- echo )
-
build-dirs := $(KBUILD_EXTMOD)
PHONY += modules
-modules: descend $(objtree)/Module.symvers
+modules: descend
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
PHONY += modules_install
projects / linux-2.6-microblaze.git / blobdiff