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Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next

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* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next: (25 commits)
  setlocalversion: do not describe if there is nothing to describe
  kconfig: fix typos: "Suport" -> "Support"
  kconfig: make defconfig is no longer chatty
  kconfig: make oldconfig is now less chatty
  kconfig: speed up all*config + randconfig
  kconfig: set all new symbols automatically
  kconfig: add diffconfig utility
  kbuild: remove Module.markers during mrproper
  kbuild: sparse needs CF not CHECKFLAGS
  kernel-doc: handle/strip __init
  vmlinux.lds: move __attribute__((__cold__)) functions back into final .text section
  init: fix URL of "The GNU Accounting Utilities"
  kbuild: add arch/$ARCH/include to search path
  kbuild: asm symlink support for arch/$ARCH/include
  kbuild: support arch/$ARCH/include for tags, cscope
  kbuild: prepare headers_* for arch/$ARCH/include
  kbuild: install all headers when arch is changed
  kbuild: make clean removes *.o.* as well
  kbuild: optimize headers_* targets
  kbuild: only one call for include/ in make headers_*
  ...
This commit is contained in:
Linus Torvalds 2008-07-27 09:59:59 -07:00
commit 6948385cbd
18 changed files with 574 additions and 323 deletions
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115
Makefile
View file

@ -205,6 +205,9 @@ ifeq ($(ARCH),x86_64)
SRCARCH := x86
endif
# Where to locate arch specific headers
hdr-arch := $(SRCARCH)
KCONFIG_CONFIG ?= .config
# SHELL used by kbuild
@ -326,7 +329,8 @@ AFLAGS_KERNEL =
# Needed to be compatible with the O= option
LINUXINCLUDE := -Iinclude \
$(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \
-include include/linux/autoconf.h
-I$(srctree)/arch/$(hdr-arch)/include \
-include include/linux/autoconf.h
KBUILD_CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE)
@ -922,7 +926,9 @@ ifneq ($(KBUILD_SRC),)
/bin/false; \
fi;
$(Q)if [ ! -d include2 ]; then mkdir -p include2; fi;
$(Q)ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm
$(Q)if [ -e $(srctree)/include/asm-$(SRCARCH)/system.h ]; then \
ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm; \
fi
endif
# prepare2 creates a makefile if using a separate output directory
@ -948,22 +954,34 @@ export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)
# The asm symlink changes when $(ARCH) changes.
# Detect this and ask user to run make mrproper
include/asm: FORCE
$(Q)set -e; asmlink=`readlink include/asm | cut -d '-' -f 2`; \
if [ -L include/asm ]; then \
if [ "$$asmlink" != "$(SRCARCH)" ]; then \
define check-symlink
set -e; \
if [ -L include/asm ]; then \
asmlink=`readlink include/asm | cut -d '-' -f 2`; \
if [ "$$asmlink" != "$(SRCARCH)" ]; then \
echo "ERROR: the symlink $@ points to asm-$$asmlink but asm-$(SRCARCH) was expected"; \
echo " set ARCH or save .config and run 'make mrproper' to fix it"; \
exit 1; \
fi; \
else \
echo ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \
if [ ! -d include ]; then \
mkdir -p include; \
fi; \
ln -fsn asm-$(SRCARCH) $@; \
exit 1; \
fi; \
fi
endef
# We create the target directory of the symlink if it does
# not exist so the test in chack-symlink works and we have a
# directory for generated filesas used by some architectures.
define create-symlink
if [ ! -L include/asm ]; then \
echo ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \
if [ ! -d include/asm-$(SRCARCH) ]; then \
mkdir -p include/asm-$(SRCARCH); \
fi; \
ln -fsn asm-$(SRCARCH) $@; \
fi
endef
include/asm: FORCE
$(Q)$(check-symlink)
$(Q)$(create-symlink)
# Generate some files
# ---------------------------------------------------------------------------
@ -1010,36 +1028,43 @@ firmware_install: FORCE
# ---------------------------------------------------------------------------
# Kernel headers
INSTALL_HDR_PATH=$(objtree)/usr
export INSTALL_HDR_PATH
HDRFILTER=generic i386 x86_64
HDRARCHES=$(filter-out $(HDRFILTER),$(patsubst $(srctree)/include/asm-%/Kbuild,%,$(wildcard $(srctree)/include/asm-*/Kbuild)))
#Default location for installed headers
export INSTALL_HDR_PATH = $(objtree)/usr
hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj
# Find out where the Kbuild file is located to support
# arch/$(ARCH)/include/asm
hdr-dir = $(strip \
$(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/asm/Kbuild), \
arch/$(hdr-arch)/include/asm, include/asm-$(hdr-arch)))
# If we do an all arch process set dst to asm-$(hdr-arch)
hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm)
PHONY += __headers
__headers: include/linux/version.h scripts_basic FORCE
$(Q)$(MAKE) $(build)=scripts scripts/unifdef
PHONY += headers_install_all
headers_install_all: include/linux/version.h scripts_basic FORCE
$(Q)$(MAKE) $(build)=scripts scripts/unifdef
$(Q)for arch in $(HDRARCHES); do \
$(MAKE) ARCH=$$arch -f $(srctree)/scripts/Makefile.headersinst obj=include BIASMDIR=-bi-$$arch ;\
done
headers_install_all:
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install
PHONY += headers_install
headers_install: include/linux/version.h scripts_basic FORCE
@if [ ! -r $(srctree)/include/asm-$(SRCARCH)/Kbuild ]; then \
echo '*** Error: Headers not exportable for this architecture ($(SRCARCH))'; \
exit 1 ; fi
$(Q)$(MAKE) $(build)=scripts scripts/unifdef
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.headersinst ARCH=$(SRCARCH) obj=include
headers_install: __headers
$(if $(wildcard $(srctree)/$(hdr-dir)/Kbuild),, \
$(error Headers not exportable for the $(SRCARCH) architecture))
$(Q)$(MAKE) $(hdr-inst)=include
$(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst)
PHONY += headers_check_all
headers_check_all: headers_install_all
$(Q)for arch in $(HDRARCHES); do \
$(MAKE) ARCH=$$arch -f $(srctree)/scripts/Makefile.headersinst obj=include BIASMDIR=-bi-$$arch HDRCHECK=1 ;\
done
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check
PHONY += headers_check
headers_check: headers_install
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.headersinst ARCH=$(SRCARCH) obj=include HDRCHECK=1
$(Q)$(MAKE) $(hdr-inst)=include HDRCHECK=1
$(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) HDRCHECK=1
# ---------------------------------------------------------------------------
# Modules
@ -1131,7 +1156,7 @@ MRPROPER_FILES += .config .config.old include/asm .version .old_version \
include/linux/autoconf.h include/linux/version.h \
include/linux/utsrelease.h \
include/linux/bounds.h include/asm*/asm-offsets.h \
Module.symvers tags TAGS cscope*
Module.symvers Module.markers tags TAGS cscope*
# clean - Delete most, but leave enough to build external modules
#
@ -1150,7 +1175,7 @@ clean: archclean $(clean-dirs)
\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
-o -name '*.symtypes' -o -name 'modules.order' \
-o -name 'Module.markers' \) \
-o -name 'Module.markers' -o -name '.tmp_*.o.*' \) \
-type f -print | xargs rm -f
# mrproper - Delete all generated files, including .config
@ -1224,21 +1249,17 @@ help:
@echo ' cscope - Generate cscope index'
@echo ' kernelrelease - Output the release version string'
@echo ' kernelversion - Output the version stored in Makefile'
@if [ -r $(srctree)/include/asm-$(SRCARCH)/Kbuild ]; then \
echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \
@echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \
echo ' (default: $(INSTALL_HDR_PATH))'; \
fi
@echo ''
echo ''
@echo 'Static analysers'
@echo ' checkstack - Generate a list of stack hogs'
@echo ' namespacecheck - Name space analysis on compiled kernel'
@echo ' versioncheck - Sanity check on version.h usage'
@echo ' includecheck - Check for duplicate included header files'
@echo ' export_report - List the usages of all exported symbols'
@if [ -r $(srctree)/include/asm-$(SRCARCH)/Kbuild ]; then \
echo ' headers_check - Sanity check on exported headers'; \
fi
@echo ''
@echo ' headers_check - Sanity check on exported headers'; \
echo ''
@echo 'Kernel packaging:'
@$(MAKE) $(build)=$(package-dir) help
@echo ''
@ -1411,7 +1432,11 @@ define find-sources
\( -name config -o -name 'asm-*' \) -prune \
-o -name $1 -print; \
for arch in $(ALLINCLUDE_ARCHS) ; do \
find $(__srctree)include/asm-$${arch} $(RCS_FIND_IGNORE) \
test -e $(__srctree)include/asm-$${arch} && \
find $(__srctree)include/asm-$${arch} $(RCS_FIND_IGNORE) \
-name $1 -print; \
test -e $(__srctree)arch/$${arch}/include/asm && \
find $(__srctree)arch/$${arch}/include/asm $(RCS_FIND_IGNORE) \
-name $1 -print; \
done ; \
find $(__srctree)include/asm-generic $(RCS_FIND_IGNORE) \