VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 24
-EXTRAVERSION = -rc2
+EXTRAVERSION =
NAME = Arr Matey! A Hairy Bilge Rat!
# *DOCUMENTATION*
# Do not:
# o use make's built-in rules and variables
-# (this increases performance and avoid hard-to-debug behavour);
+# (this increases performance and avoids hard-to-debug behaviour);
# o print "Entering directory ...";
MAKEFLAGS += -rR --no-print-directory
PHONY := _all
_all:
+# Cancel implicit rules on top Makefile
+$(CURDIR)/Makefile Makefile: ;
+
ifneq ($(KBUILD_OUTPUT),)
# Invoke a second make in the output directory, passing relevant variables
# check that the output directory actually exists
KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)
$(if $(KBUILD_OUTPUT),, \
$(error output directory "$(saved-output)" does not exist))
-# Check that OUTPUT directory is not the same as where we have kernel src
-$(if $(filter-out $(KBUILD_OUTPUT),$(shell /bin/pwd)),, \
- $(error Output directory (O=...) specifies kernel src dir))
PHONY += $(MAKECMDGOALS) sub-make
-$(filter-out _all sub-make,$(MAKECMDGOALS)) _all: sub-make
+$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
$(Q)@:
sub-make: FORCE
-e s/arm.*/arm/ -e s/sa110/arm/ \
-e s/s390x/s390/ -e s/parisc64/parisc/ \
-e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
- -e s/sh[234].*/sh/ )
+ -e s/sh.*/sh/ )
# Cross compiling and selecting different set of gcc/bin-utils
# ---------------------------------------------------------------------------
# Look for make include files relative to root of kernel src
MAKEFLAGS += --include-dir=$(srctree)
-# We need some generic definitions.
+# We need some generic definitions (do not try to remake the file).
+$(srctree)/scripts/Kbuild.include: ;
include $(srctree)/scripts/Kbuild.include
# Make variables (CC, etc...)
KBUILD_AFLAGS += -gdwarf-2
endif
+# We trigger additional mismatches with less inlining
+ifdef CONFIG_DEBUG_SECTION_MISMATCH
+KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once)
+endif
+
# Force gcc to behave correct even for buggy distributions
KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector)
endef
# vmlinux image - including updated kernel symbols
-vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) $(kallsyms.o) vmlinux.o FORCE
+vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE
ifdef CONFIG_HEADERS_CHECK
$(Q)$(MAKE) -f $(srctree)/Makefile headers_check
endif
$(call if_changed_rule,vmlinux__)
$(Q)rm -f .old_version
-vmlinux.o: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) $(kallsyms.o) FORCE
+# build vmlinux.o first to catch section mismatch errors early
+$(kallsyms.o): vmlinux.o
+vmlinux.o: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) FORCE
$(call if_changed_rule,vmlinux-modpost)
# The actual objects are generated when descending,
all: modules
# Build modules
+#
+# A module can be listed more than once in obj-m resulting in
+# duplicate lines in modules.order files. Those are removed
+# using awk while concatenating to the final file.
PHONY += modules
modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux)
+ $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order
@echo ' Building modules, stage 2.';
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
rm -f $(MODLIB)/build ; \
ln -s $(objtree) $(MODLIB)/build ; \
fi
+ @cp -f $(objtree)/modules.order $(MODLIB)/
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
# This depmod is only for convenience to give the initial
@find . $(RCS_FIND_IGNORE) \
\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
- -o -name '*.symtypes' \) \
+ -o -name '*.symtypes' -o -name 'modules.order' \) \
-type f -print | xargs rm -f
# mrproper - Delete all generated files, including .config
@echo ' dir/ - Build all files in dir and below'
@echo ' dir/file.[ois] - Build specified target only'
@echo ' dir/file.ko - Build module including final link'
- @echo ' rpm - Build a kernel as an RPM package'
+ @echo ' prepare - Set up for building external modules'
@echo ' tags/TAGS - Generate tags file for editors'
@echo ' cscope - Generate cscope index'
@echo ' kernelrelease - Output the release version string'
@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'; \
ALLINCLUDE_ARCHS := $(SRCARCH)
endif
else
-#Allow user to specify only ALLSOURCE_PATHS on the command line, keeping existing behavour.
+#Allow user to specify only ALLSOURCE_PATHS on the command line, keeping existing behaviour.
ALLINCLUDE_ARCHS := $(ALLSOURCE_ARCHS)
endif
-# Take care of arch/x86
-ifeq ($(ARCH), $(SRCARCH))
-ALLSOURCE_ARCHS := $(ARCH)
-else
-ALLSOURCE_ARCHS := $(ARCH) $(SRCARCH)
-endif
+ALLSOURCE_ARCHS := $(SRCARCH)
define find-sources
( for arch in $(ALLSOURCE_ARCHS) ; do \
if $1 --version 2>&1 | grep -iq exuberant; then \
$(all-sources) | xargs $1 -a \
-I __initdata,__exitdata,__acquires,__releases \
+ -I __read_mostly,____cacheline_aligned,____cacheline_aligned_in_smp,____cacheline_internodealigned_in_smp \
-I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \
--extra=+f --c-kinds=+px \
--regex-asm='/^ENTRY\(([^)]*)\).*/\1/'; \
includecheck:
find * $(RCS_FIND_IGNORE) \
-name '*.[hcS]' -type f -print | sort \
- | xargs $(PERL) -w scripts/checkincludes.pl
+ | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl
versioncheck:
find * $(RCS_FIND_IGNORE) \
-name '*.[hcS]' -type f -print | sort \
- | xargs $(PERL) -w scripts/checkversion.pl
+ | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl
namespacecheck:
$(PERL) $(srctree)/scripts/namespace.pl
# Single targets
# ---------------------------------------------------------------------------
# Single targets are compatible with:
-# - build whith mixed source and output
+# - build with mixed source and output
# - build with separate output dir 'make O=...'
# - external modules
#
PHONY += FORCE
FORCE:
-# Cancel implicit rules on top Makefile, `-rR' will apply to sub-makes.
-Makefile: ;
-
# 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.
.PHONY: $(PHONY)
git.samba.org / sfrench / cifs-2.6.git / blobdiff