VERSION = 2
PATCHLEVEL = 6
-SUBLEVEL = 19
-EXTRAVERSION =-rc2
-NAME=Avast! A bilge rat!
+SUBLEVEL = 20
+EXTRAVERSION =-rc4
+NAME = Homicidal Dwarf Hamster
# *DOCUMENTATION*
# To see a list of typical targets execute "make help"
# Comments in this file are targeted only to the developer, do not
# expect to learn how to build the kernel reading this file.
-# Do not print "Entering directory ..."
-MAKEFLAGS += --no-print-directory
+# Do not:
+# o use make's built-in rules and variables
+# (this increases performance and avoid hard-to-debug behavour);
+# o print "Entering directory ...";
+MAKEFLAGS += -rR --no-print-directory
# We are using a recursive build, so we need to do a little thinking
# to get the ordering right.
# Look for make include files relative to root of kernel src
MAKEFLAGS += --include-dir=$(srctree)
-# We need some generic definitions
-include $(srctree)/scripts/Kbuild.include
-
-# Do not use make's built-in rules and variables
-# This increases performance and avoid hard-to-debug behavour
-MAKEFLAGS += -rR
+# We need some generic definitions.
+include $(srctree)/scripts/Kbuild.include
# Make variables (CC, etc...)
# Detect when mixed targets is specified, and make a second invocation
# of make so .config is not included in this case either (for *config).
-no-dot-config-targets := clean mrproper distclean \
+PHONY += generated_headers
+
+generated_headers: include/linux/version.h include/linux/compile.h \
+ include/linux/utsrelease.h
+
+no-dot-config-targets := generated_headers clean mrproper distclean \
cscope TAGS tags help %docs check% \
- include/linux/version.h headers_% \
- kernelrelease kernelversion
+ headers_% kernelrelease kernelversion
config-targets := 0
mixed-targets := 0
CFLAGS += -fomit-frame-pointer
endif
-ifdef CONFIG_UNWIND_INFO
-CFLAGS += -fasynchronous-unwind-tables
-LDFLAGS_vmlinux += --eh-frame-hdr
-endif
-
ifdef CONFIG_DEBUG_INFO
CFLAGS += -g
endif
endif # ifdef CONFIG_KALLSYMS
+# compile.h changes depending on hostname, generation number, etc,
+# so we regenerate it always.
+# mkcompile_h will make sure to only update the
+# actual file if its content has changed.
+
+include/linux/compile.h: FORCE
+ @echo ' CHK $@'
+ $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkcompile_h $@ \
+ "$(UTS_MACHINE)" "$(CONFIG_SMP)" "$(CONFIG_PREEMPT)" "$(CC) $(CFLAGS)"
+
# vmlinux image - including updated kernel symbols
vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) $(kallsyms.o) FORCE
ifdef CONFIG_HEADERS_CHECK
# prepare2 creates a makefile if using a separate output directory
prepare2: prepare3 outputmakefile
-prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \
- include/asm include/config/auto.conf
+prepare1: prepare2 generated_headers include/asm include/config/auto.conf
+
ifneq ($(KBUILD_MODULES),)
$(Q)mkdir -p $(MODVERDIR)
$(Q)rm -f $(MODVERDIR)/*
HDRARCHES=$(filter-out generic,$(patsubst $(srctree)/include/asm-%/Kbuild,%,$(wildcard $(srctree)/include/asm-*/Kbuild)))
PHONY += headers_install_all
-headers_install_all: include/linux/version.h scripts_basic FORCE
+headers_install_all: generated_headers 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
PHONY += headers_install
-headers_install: include/linux/version.h scripts_basic FORCE
+headers_install: generated_headers scripts_basic FORCE
@if [ ! -r $(srctree)/include/asm-$(ARCH)/Kbuild ]; then \
echo '*** Error: Headers not exportable for this architecture ($(ARCH))'; \
exit 1 ; fi
# Directories & files removed with 'make mrproper'
MRPROPER_DIRS += include/config include2 usr/include
MRPROPER_FILES += .config .config.old include/asm .version .old_version \
- include/linux/autoconf.h include/linux/version.h \
- include/linux/utsrelease.h \
+ include/linux/autoconf.h include/linux/utsrelease.h include/linux/version.h \
Module.symvers tags TAGS cscope*
# clean - Delete most, but leave enough to build external modules
help:
@echo 'Cleaning targets:'
- @echo ' clean - remove most generated files but keep the config and'
+ @echo ' clean - Remove most generated files but keep the config and'
@echo ' enough build support to build external modules'
- @echo ' mrproper - remove all generated files + config + various backup files'
+ @echo ' mrproper - Remove all generated files + config + various backup files'
@echo ' distclean - mrproper + remove editor backup and patch files'
@echo ''
@echo 'Configuration targets:'
PHONY += checkstack kernelrelease kernelversion
-# Use $(SUBARCH) here instead of $(ARCH) so that this works for UML.
-# In the UML case, $(SUBARCH) is the name of the underlying
-# architecture, while for all other arches, it is the same as $(ARCH).
+# UML needs a little special treatment here. It wants to use the host
+# toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone
+# else wants $(ARCH), including people doing cross-builds, which means
+# that $(SUBARCH) doesn't work here.
+ifeq ($(ARCH), um)
+CHECKSTACK_ARCH := $(SUBARCH)
+else
+CHECKSTACK_ARCH := $(ARCH)
+endif
checkstack:
$(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \
- $(PERL) $(src)/scripts/checkstack.pl $(SUBARCH)
+ $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)
kernelrelease:
$(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \
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.