613ac52e95
[rminnich@q src]$ make xconfig make[1]: Nothing to be done for `__build'. CHECK qt HOSTCC scripts/kconfig/conf.o /bin/sh: scripts/basic/fixdep: No such file or directory make[1]: *** [scripts/kconfig/conf.o] Error 1 make: *** [xconfig] Error 2 git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@4 f3766cd6-281f-0410-b1cd-43a5c92072e9
930 lines
No EOL
31 KiB
Makefile
930 lines
No EOL
31 KiB
Makefile
VERSION = 3
|
|
PATCHLEVEL = 0
|
|
SUBLEVEL = 0
|
|
EXTRAVERSION = 0
|
|
NAME=I Hate Cute Names
|
|
|
|
# *DOCUMENTATION*
|
|
# To see a list of typical targets execute "make help"
|
|
# More info can be located in ./README
|
|
# 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
|
|
|
|
# We are using a recursive build, so we need to do a little thinking
|
|
# to get the ordering right.
|
|
#
|
|
# Most importantly: sub-Makefiles should only ever modify files in
|
|
# their own directory. If in some directory we have a dependency on
|
|
# a file in another dir (which doesn't happen often, but it's often
|
|
# unavoidable when linking the built-in.o targets which finally
|
|
# turn into vmlinux), we will call a sub make in that other dir, and
|
|
# after that we are sure that everything which is in that other dir
|
|
# is now up to date.
|
|
#
|
|
# The only cases where we need to modify files which have global
|
|
# effects are thus separated out and done before the recursive
|
|
# descending is started. They are now explicitly listed as the
|
|
# prepare rule.
|
|
|
|
# To put more focus on warnings, be less verbose as default
|
|
# Use 'make V=1' to see the full commands
|
|
|
|
ifdef V
|
|
ifeq ("$(origin V)", "command line")
|
|
LBBUILD_VERBOSE = $(V)
|
|
endif
|
|
endif
|
|
ifndef LBBUILD_VERBOSE
|
|
LBBUILD_VERBOSE = 0
|
|
endif
|
|
|
|
# Call sparse as part of compilation of C files
|
|
# Use 'make C=1' to enable sparse checking
|
|
|
|
ifdef C
|
|
ifeq ("$(origin C)", "command line")
|
|
LBBUILD_CHECKSRC = $(C)
|
|
endif
|
|
endif
|
|
ifndef LBBUILD_CHECKSRC
|
|
LBBUILD_CHECKSRC = 0
|
|
endif
|
|
|
|
# Use make M=dir to specify directory of external module to build
|
|
# Old syntax make ... SUBDIRS=$PWD is still supported
|
|
# Setting the environment variable LBBUILD_EXTMOD take precedence
|
|
ifdef SUBDIRS
|
|
LBBUILD_EXTMOD ?= $(SUBDIRS)
|
|
endif
|
|
ifdef M
|
|
ifeq ("$(origin M)", "command line")
|
|
LBBUILD_EXTMOD := $(M)
|
|
endif
|
|
endif
|
|
|
|
|
|
# kbuild supports saving output files in a separate directory.
|
|
# To locate output files in a separate directory two syntaxes are supported.
|
|
# In both cases the working directory must be the root of the kernel src.
|
|
# 1) O=
|
|
# Use "make O=dir/to/store/output/files/"
|
|
#
|
|
# 2) Set LBBUILD_OUTPUT
|
|
# Set the environment variable LBBUILD_OUTPUT to point to the directory
|
|
# where the output files shall be placed.
|
|
# export LBBUILD_OUTPUT=dir/to/store/output/files/
|
|
# make
|
|
#
|
|
# The O= assignment takes precedence over the LBBUILD_OUTPUT environment
|
|
# variable.
|
|
|
|
|
|
# LBBUILD_SRC is set on invocation of make in OBJ directory
|
|
# LBBUILD_SRC is not intended to be used by the regular user (for now)
|
|
ifeq ($(LBBUILD_SRC),)
|
|
|
|
# OK, Make called in directory where kernel src resides
|
|
# Do we want to locate output files in a separate directory?
|
|
ifdef O
|
|
ifeq ("$(origin O)", "command line")
|
|
LBBUILD_OUTPUT := $(O)
|
|
endif
|
|
endif
|
|
|
|
# That's our default target when none is given on the command line
|
|
PHONY := all
|
|
all:
|
|
|
|
ifneq ($(LBBUILD_OUTPUT),)
|
|
# Invoke a second make in the output directory, passing relevant variables
|
|
# check that the output directory actually exists
|
|
saved-output := $(LBBUILD_OUTPUT)
|
|
LBBUILD_OUTPUT := $(shell cd $(LBBUILD_OUTPUT) && /bin/pwd)
|
|
$(if $(LBBUILD_OUTPUT),, \
|
|
$(error output directory "$(saved-output)" does not exist))
|
|
|
|
PHONY += $(MAKECMDGOALS)
|
|
|
|
$(filter-out _all,$(MAKECMDGOALS)) _all:
|
|
$(if $(LBBUILD_VERBOSE:1=),@)$(MAKE) -C $(LBBUILD_OUTPUT) \
|
|
LBBUILD_SRC=$(CURDIR) \
|
|
LBBUILD_EXTMOD="$(LBBUILD_EXTMOD)" -f $(CURDIR)/Makefile $@
|
|
|
|
# Leave processing to above invocation of make
|
|
skip-makefile := 1
|
|
endif # ifneq ($(LBBUILD_OUTPUT),)
|
|
endif # ifeq ($(LBBUILD_SRC),)
|
|
|
|
# We process the rest of the Makefile if this is the final invocation of make
|
|
ifeq ($(skip-makefile),)
|
|
|
|
srctree := $(if $(LBBUILD_SRC),$(LBBUILD_SRC),$(CURDIR))
|
|
TOPDIR := $(srctree)
|
|
# FIXME - TOPDIR is obsolete, use srctree/objtree
|
|
objtree := $(CURDIR)
|
|
src := $(srctree)
|
|
obj := $(objtree)
|
|
|
|
VPATH := $(srctree)$(if $(LBBUILD_EXTMOD),:$(LBBUILD_EXTMOD))
|
|
|
|
export srctree objtree VPATH TOPDIR
|
|
|
|
|
|
# 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,
|
|
# then ARCH is assigned, getting whatever value it gets normally, and
|
|
# SUBARCH is subsequently ignored.
|
|
|
|
SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
|
|
-e s/arm.*/arm/ -e s/sa110/arm/ \
|
|
-e s/s390x/s390/ -e s/parisc64/parisc/ \
|
|
-e s/ppc.*/powerpc/ -e s/mips.*/mips/ )
|
|
|
|
# Cross compiling and selecting different set of gcc/bin-utils
|
|
# ---------------------------------------------------------------------------
|
|
#
|
|
# When performing cross compilation for other architectures ARCH shall be set
|
|
# to the target architecture. (See arch/* for the possibilities).
|
|
# ARCH can be set during invocation of make:
|
|
# make ARCH=ia64
|
|
# Another way is to have ARCH set in the environment.
|
|
# The default ARCH is the host where make is executed.
|
|
|
|
# CROSS_COMPILE specify the prefix used for all executables used
|
|
# during compilation. Only gcc and related bin-utils executables
|
|
# are prefixed with $(CROSS_COMPILE).
|
|
# CROSS_COMPILE can be set on the command line
|
|
# make CROSS_COMPILE=ia64-linux-
|
|
# Alternatively CROSS_COMPILE can be set in the environment.
|
|
# Default value for CROSS_COMPILE is not to prefix executables
|
|
# Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
|
|
|
|
ARCH ?= $(SUBARCH)
|
|
CROSS_COMPILE ?=
|
|
|
|
# Architecture as present in compile.h
|
|
UTS_MACHINE := $(ARCH)
|
|
|
|
# SHELL used by kbuild
|
|
CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
|
|
else if [ -x /bin/bash ]; then echo /bin/bash; \
|
|
else echo sh; fi ; fi)
|
|
|
|
HOSTCC = gcc
|
|
HOSTCXX = g++
|
|
HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
|
|
HOSTCXXFLAGS = -O2
|
|
|
|
export LBBUILD_CHECKSRC LBBUILD_SRC
|
|
|
|
# Beautify output
|
|
# ---------------------------------------------------------------------------
|
|
#
|
|
# Normally, we echo the whole command before executing it. By making
|
|
# that echo $($(quiet)$(cmd)), we now have the possibility to set
|
|
# $(quiet) to choose other forms of output instead, e.g.
|
|
#
|
|
# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
|
|
# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
|
|
#
|
|
# If $(quiet) is empty, the whole command will be printed.
|
|
# If it is set to "quiet_", only the short version will be printed.
|
|
# If it is set to "silent_", nothing wil be printed at all, since
|
|
# the variable $(silent_cmd_cc_o_c) doesn't exist.
|
|
#
|
|
# A simple variant is to prefix commands with $(Q) - that's useful
|
|
# for commands that shall be hidden in non-verbose mode.
|
|
#
|
|
# $(Q)ln $@ :<
|
|
#
|
|
# If LBBUILD_VERBOSE equals 0 then the above command will be hidden.
|
|
# If LBBUILD_VERBOSE equals 1 then the above command is displayed.
|
|
|
|
ifeq ($(LBBUILD_VERBOSE),1)
|
|
quiet =
|
|
Q =
|
|
else
|
|
quiet=quiet_
|
|
Q = @
|
|
endif
|
|
|
|
# If the user is running make -s (silent mode), suppress echoing of
|
|
# commands
|
|
|
|
ifneq ($(findstring s,$(MAKEFLAGS)),)
|
|
quiet=silent_
|
|
endif
|
|
|
|
export quiet Q LBBUILD_VERBOSE
|
|
|
|
|
|
# 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
|
|
|
|
# For maximum performance (+ possibly random breakage, uncomment
|
|
# the following)
|
|
|
|
#MAKEFLAGS += -rR
|
|
|
|
# Make variables (CC, etc...)
|
|
|
|
AS = $(CROSS_COMPILE)as
|
|
LD = $(CROSS_COMPILE)ld
|
|
CC = $(CROSS_COMPILE)gcc
|
|
CPP = $(CC) -E
|
|
AR = $(CROSS_COMPILE)ar
|
|
NM = $(CROSS_COMPILE)nm
|
|
STRIP = $(CROSS_COMPILE)strip
|
|
OBJCOPY = $(CROSS_COMPILE)objcopy
|
|
OBJDUMP = $(CROSS_COMPILE)objdump
|
|
AWK = awk
|
|
GENKSYMS = scripts/genksyms/genksyms
|
|
DEPMOD = /sbin/depmod
|
|
PERL = perl
|
|
CHECK = sparse
|
|
|
|
CHECKFLAGS := -D__linuxbios__ -Dlinuxbios -D__STDC__ -Dunix -D__unix__ -Wbitwise $(CF)
|
|
CFLAGS =
|
|
AFLAGS =
|
|
|
|
|
|
# Use LINUXINCLUDE when you must reference the include/ directory.
|
|
# Needed to be compatible with the O= option
|
|
LINUXINCLUDE := -Iinclude \
|
|
-I$(srctree)/include) \
|
|
-include include/linuxbios/autoconf.h
|
|
|
|
CPPFLAGS := $(LINUXINCLUDE)
|
|
|
|
CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
|
|
-fno-strict-aliasing -fno-common
|
|
AFLAGS := -D__ASSEMBLY__
|
|
|
|
# Read LINUXBIOSRELEASE from .linuxbiosrelease (if it exists)
|
|
LINUXBIOSRELEASE = $(shell cat .linuxbiosrelease 2> /dev/null)
|
|
LINUXBIOSVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
|
|
|
|
export VERSION PATCHLEVEL SUBLEVEL LINUXBIOSRELEASE LINUXBIOSVERSION \
|
|
ARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC \
|
|
CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE \
|
|
HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS
|
|
|
|
export CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
|
|
export CFLAGS
|
|
export AFLAGS
|
|
|
|
# Files to ignore in find ... statements
|
|
|
|
RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS -o -name .pc -o -name .hg -o -name .git \) -prune -o
|
|
export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git
|
|
|
|
# ===========================================================================
|
|
# Rules shared between *config targets and build targets
|
|
|
|
# Basic helpers built in scripts/
|
|
PHONY += scripts_basic
|
|
scripts_basic:
|
|
$(Q)$(MAKE) $(build)=scripts/basic
|
|
|
|
# To avoid any implicit rule to kick in, define an empty command.
|
|
scripts/basic/%: scripts_basic ;
|
|
|
|
PHONY += outputmakefile
|
|
# outputmakefile generates a Makefile in the output directory, if using a
|
|
# separate output directory. This allows convenient use of make in the
|
|
# output directory.
|
|
outputmakefile:
|
|
ifneq ($(LBBUILD_SRC),)
|
|
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
|
|
$(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
|
|
endif
|
|
|
|
# To make sure we do not include .config for any of the *config targets
|
|
# catch them early, and hand them over to scripts/kconfig/Makefile
|
|
# It is allowed to specify more targets when calling make, including
|
|
# mixing *config targets and build targets.
|
|
# For example 'make oldconfig all'.
|
|
# Detect when mixed targets is specified, and make a second invocation
|
|
# of make so .config is not included in this case either (for *config).
|
|
|
|
no-dot-config-targets := clean mrproper distclean \
|
|
cscope TAGS tags help %docs check%
|
|
|
|
config-targets := 0
|
|
mixed-targets := 0
|
|
dot-config := 1
|
|
|
|
ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
|
|
ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
|
|
dot-config := 0
|
|
endif
|
|
endif
|
|
|
|
ifeq ($(LBBUILD_EXTMOD),)
|
|
ifneq ($(filter config %config,$(MAKECMDGOALS)),)
|
|
config-targets := 1
|
|
ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)
|
|
mixed-targets := 1
|
|
endif
|
|
endif
|
|
endif
|
|
|
|
ifeq ($(mixed-targets),1)
|
|
# ===========================================================================
|
|
# We're called with mixed targets (*config and build targets).
|
|
# Handle them one by one.
|
|
|
|
%:: FORCE
|
|
$(Q)$(MAKE) -C $(srctree) LBBUILD_SRC= $@
|
|
|
|
else
|
|
ifeq ($(config-targets),1)
|
|
# ===========================================================================
|
|
# *config targets only - make sure prerequisites are updated, and descend
|
|
# in scripts/kconfig to make the *config target
|
|
|
|
# Read arch specific Makefile to set LBBUILD_DEFCONFIG as needed.
|
|
# LBBUILD_DEFCONFIG may point out an alternative default configuration
|
|
# used for 'make defconfig'
|
|
include $(srctree)/mainboard/$(MAINBOARD)/Makefile
|
|
export LBBUILD_DEFCONFIG
|
|
|
|
config %config: scripts_basic outputmakefile FORCE
|
|
$(Q)mkdir -p include/linux
|
|
$(Q)$(MAKE) $(build)=scripts/kconfig $@
|
|
$(Q)$(MAKE) -C $(srctree) LBBUILD_SRC= .linuxbiosrelease
|
|
|
|
else
|
|
# ===========================================================================
|
|
# Build targets only - this includes vmlinux, arch specific targets, clean
|
|
# targets and others. In general all targets except *config targets.
|
|
|
|
ifeq ($(dot-config),1)
|
|
# In this section, we need .config
|
|
|
|
# Read in dependencies to all Kconfig* files, make sure to run
|
|
# oldconfig if changes are detected.
|
|
-include .kconfig.d
|
|
|
|
include .config
|
|
|
|
# If .config needs to be updated, it will be done via the dependency
|
|
# that autoconf has on .config.
|
|
# To avoid any implicit rule to kick in, define an empty command
|
|
.config .kconfig.d: ;
|
|
|
|
# If .config is newer than include/linux/autoconf.h, someone tinkered
|
|
# with it and forgot to run make oldconfig.
|
|
# If kconfig.d is missing then we are probarly in a cleaned tree so
|
|
# we execute the config step to be sure to catch updated Kconfig files
|
|
include/linux/autoconf.h: .kconfig.d .config
|
|
$(Q)mkdir -p include/linux
|
|
$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
|
|
else
|
|
# Dummy target needed, because used as prerequisite
|
|
include/linux/autoconf.h: ;
|
|
endif
|
|
|
|
# The all: target is the default when no target is given on the
|
|
# command line.
|
|
# This allow a user to issue only 'make' to build a kernel including modules
|
|
# Defaults vmlinux but it is usually overriden in the arch makefile
|
|
all: vmlinux
|
|
|
|
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
|
|
CFLAGS += -Os
|
|
else
|
|
CFLAGS += -O2
|
|
endif
|
|
|
|
ifdef CONFIG_FRAME_POINTER
|
|
CFLAGS += -fno-omit-frame-pointer $(call cc-option,-fno-optimize-sibling-calls,)
|
|
else
|
|
CFLAGS += -fomit-frame-pointer
|
|
endif
|
|
|
|
ifdef CONFIG_UNWIND_INFO
|
|
CFLAGS += -fasynchronous-unwind-tables
|
|
endif
|
|
|
|
ifdef CONFIG_DEBUG_INFO
|
|
CFLAGS += -g
|
|
endif
|
|
|
|
include $(srctree)/mainboard/$(MAINBOARD)/Makefile
|
|
|
|
# mainboard Makefile may override CC so keep this after mainboard Makefile is included
|
|
NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
|
|
CHECKFLAGS += $(NOSTDINC_FLAGS)
|
|
|
|
# warn about C99 declaration after statement
|
|
CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
|
|
|
|
# disable pointer signedness warnings in gcc 4.0
|
|
CFLAGS += $(call cc-option,-Wno-pointer-sign,)
|
|
|
|
# Default kernel image to build when no specific target is given.
|
|
# LBBUILD_IMAGE may be overruled on the commandline or
|
|
# set in the environment
|
|
# Also any assignments in arch/$(ARCH)/Makefile take precedence over
|
|
# this default value
|
|
export LBBUILD_IMAGE ?= linuxbios.rom startup_code.rom
|
|
|
|
|
|
ifeq ($(LBBUILD_EXTMOD),)
|
|
core-y +=
|
|
|
|
linuxbios-dirs := $(patsubst %/,%,$(filter %/, $(core-y)
|
|
|
|
linuxbios-alldirs := $(sort $(linuxbios-dirs))
|
|
|
|
# Build vmlinux
|
|
# ---------------------------------------------------------------------------
|
|
# vmlinux is build from the objects selected by $(linuxbios-init) and
|
|
# $(linuxbios-main). Most are built-in.o files from top-level directories
|
|
# in the kernel tree, others are specified in arch/$(ARCH)Makefile.
|
|
# Ordering when linking is important, and $(linuxbios-init) must be first.
|
|
#
|
|
# vmlinux
|
|
# ^
|
|
# |
|
|
# +-< $(linuxbios-init)
|
|
# | +--< init/version.o + more
|
|
# |
|
|
# +--< $(linuxbios-main)
|
|
# | +--< driver/built-in.o mm/built-in.o + more
|
|
# |
|
|
# +-< kallsyms.o (see description in CONFIG_KALLSYMS section)
|
|
#
|
|
# vmlinux version (uname -v) cannot be updated during normal
|
|
# descending-into-subdirs phase since we do not yet know if we need to
|
|
# update vmlinux.
|
|
# Therefore this step is delayed until just before final link of vmlinux -
|
|
# except in the kallsyms case where it is done just before adding the
|
|
# symbols to the kernel.
|
|
#
|
|
# System.map is generated to document addresses of all kernel symbols
|
|
|
|
linuxbios-init := $(head-y) $(init-y)
|
|
linuxbios-main := $(core-y) $(libs-y) $(drivers-y) $(net-y)
|
|
linuxbios-all := $(linuxbios-init) $(linuxbios-main)
|
|
linuxbios-lds := arch/$(ARCH)/kernel/vmlinux.lds
|
|
|
|
# Rule to link vmlinux - also used during CONFIG_KALLSYMS
|
|
# May be overridden by arch/$(ARCH)/Makefile
|
|
quiet_cmd_vmlinux__ ?= LD $@
|
|
cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \
|
|
-T $(linuxbios-lds) $(linuxbios-init) \
|
|
--start-group $(linuxbios-main) --end-group \
|
|
$(filter-out $(linuxbios-lds) $(linuxbios-init) $(linuxbios-main) FORCE ,$^)
|
|
|
|
# Generate new vmlinux version
|
|
quiet_cmd_vmlinux_version = GEN .version
|
|
cmd_vmlinux_version = set -e; \
|
|
if [ ! -r .version ]; then \
|
|
rm -f .version; \
|
|
echo 1 >.version; \
|
|
else \
|
|
mv .version .old_version; \
|
|
expr 0$$(cat .old_version) + 1 >.version; \
|
|
fi; \
|
|
$(MAKE) $(build)=init
|
|
|
|
# Generate System.map
|
|
quiet_cmd_sysmap = SYSMAP
|
|
cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap
|
|
|
|
# Link of vmlinux
|
|
# If CONFIG_KALLSYMS is set .version is already updated
|
|
# Generate System.map and verify that the content is consistent
|
|
# Use + in front of the vmlinux_version rule to silent warning with make -j2
|
|
# First command is ':' to allow us to use + in front of the rule
|
|
define rule_vmlinux__
|
|
:
|
|
$(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version))
|
|
|
|
$(call cmd,vmlinux__)
|
|
$(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd
|
|
|
|
$(Q)$(if $($(quiet)cmd_sysmap), \
|
|
echo ' $($(quiet)cmd_sysmap) System.map' &&) \
|
|
$(cmd_sysmap) $@ System.map; \
|
|
if [ $$? -ne 0 ]; then \
|
|
rm -f $@; \
|
|
/bin/false; \
|
|
fi;
|
|
$(verify_kallsyms)
|
|
endef
|
|
|
|
|
|
# Generate section listing all symbols and add it into vmlinux $(kallsyms.o)
|
|
# It's a three stage process:
|
|
# o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is
|
|
# empty
|
|
# Running kallsyms on that gives us .tmp_kallsyms1.o with
|
|
# the right size - vmlinux version (uname -v) is updated during this step
|
|
# o .tmp_vmlinux2 now has a __kallsyms section of the right size,
|
|
# but due to the added section, some addresses have shifted.
|
|
# From here, we generate a correct .tmp_kallsyms2.o
|
|
# o The correct .tmp_kallsyms2.o is linked into the final vmlinux.
|
|
# o Verify that the System.map from vmlinux matches the map from
|
|
# .tmp_vmlinux2, just in case we did not generate kallsyms correctly.
|
|
# o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using
|
|
# .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a
|
|
# temporary bypass to allow the kernel to be built while the
|
|
# maintainers work out what went wrong with kallsyms.
|
|
|
|
|
|
# vmlinux image - including updated kernel symbols
|
|
linuxbios.rom: $(linuxbios-lds) $(linuxbios-init) $(linuxbios-main) $(kallsyms.o) FORCE
|
|
$(call if_changed_rule,vmlinux__)
|
|
$(Q)rm -f .old_version
|
|
|
|
# The actual objects are generated when descending,
|
|
# make sure no implicit rule kicks in
|
|
$(sort $(linuxbios-init) $(linuxbios-main)) $(linuxbios-lds): $(linuxbios-dirs) ;
|
|
|
|
# Handle descending into subdirectories listed in $(linuxbios-dirs)
|
|
# Preset locale variables to speed up the build process. Limit locale
|
|
# tweaks to this spot to avoid wrong language settings when running
|
|
# make menuconfig etc.
|
|
# Error messages still appears in the original language
|
|
|
|
PHONY += $(linuxbios-dirs)
|
|
$(linuxbios-dirs): prepare scripts
|
|
$(Q)$(MAKE) $(build)=$@
|
|
|
|
# Build the kernel release string
|
|
# The LINUXBIOSRELEASE is stored in a file named .kernelrelease
|
|
# to be used when executing for example make install or make modules_install
|
|
#
|
|
# Take the contents of any files called localversion* and the config
|
|
# variable CONFIG_LOCALVERSION and append them to LINUXBIOSRELEASE.
|
|
# LOCALVERSION from the command line override all of this
|
|
|
|
nullstring :=
|
|
space := $(nullstring) # end of line
|
|
|
|
___localver = $(objtree)/localversion* $(srctree)/localversion*
|
|
__localver = $(sort $(wildcard $(___localver)))
|
|
# skip backup files (containing '~')
|
|
_localver = $(foreach f, $(__localver), $(if $(findstring ~, $(f)),,$(f)))
|
|
|
|
localver = $(subst $(space),, \
|
|
$(shell cat /dev/null $(_localver)) \
|
|
$(patsubst "%",%,$(CONFIG_LOCALVERSION)))
|
|
|
|
# If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called
|
|
# and if the SCM is know a tag from the SCM is appended.
|
|
# The appended tag is determinded by the SCM used.
|
|
#
|
|
# Currently, only git is supported.
|
|
# Other SCMs can edit scripts/setlocalversion and add the appropriate
|
|
# checks as needed.
|
|
ifdef CONFIG_LOCALVERSION_AUTO
|
|
_localver-auto = $(shell $(CONFIG_SHELL) \
|
|
$(srctree)/scripts/setlocalversion $(srctree))
|
|
localver-auto = $(LOCALVERSION)$(_localver-auto)
|
|
endif
|
|
|
|
localver-full = $(localver)$(localver-auto)
|
|
|
|
# Store (new) LINUXBIOSRELASE string in .linuxbiosrelease
|
|
linuxbiosrelease = $(LINUXBIOSVERSION)$(localver-full)
|
|
.linuxbiosrelease: FORCE
|
|
$(Q)rm -f $@
|
|
$(Q)echo $(linuxbiosrelease) > $@
|
|
|
|
|
|
# Things we need to do before we recursively start building the kernel
|
|
# or the modules are listed in "prepare".
|
|
# A multi level approach is used. prepareN is processed before prepareN-1.
|
|
# archprepare is used in arch Makefiles and when processed asm symlink,
|
|
# version.h and scripts_basic is processed / created.
|
|
|
|
# Listed in dependency order
|
|
PHONY += prepare prepare0 prepare1 prepare2 prepare3
|
|
|
|
# prepare-all is deprecated, use prepare as valid replacement
|
|
PHONY += prepare-all
|
|
|
|
# prepare3 is used to check if we are building in a separate output directory,
|
|
# and if so do:
|
|
# 1) Check that make has not been executed in the kernel src $(srctree)
|
|
# 2) Create the include2 directory, used for the second asm symlink
|
|
prepare3: .kernelrelease
|
|
ifneq ($(LBBUILD_SRC),)
|
|
@echo ' Using $(srctree) as source for kernel'
|
|
$(Q)if [ -f $(srctree)/.config ]; then \
|
|
echo " $(srctree) is not clean, please run 'make mrproper'";\
|
|
echo " in the '$(srctree)' directory.";\
|
|
/bin/false; \
|
|
fi;
|
|
$(Q)if [ ! -d include2 ]; then mkdir -p include2; fi;
|
|
$(Q)ln -fsn $(srctree)/include/asm-$(ARCH) include2/asm
|
|
endif
|
|
|
|
# prepare2 creates a makefile if using a separate output directory
|
|
prepare2: prepare3 outputmakefile
|
|
|
|
prepare1: prepare2 include/linux/version.h include/asm \
|
|
include/config/MARKER
|
|
ifneq ($(LBBUILD_MODULES),)
|
|
$(Q)mkdir -p $(MODVERDIR)
|
|
$(Q)rm -f $(MODVERDIR)/*
|
|
endif
|
|
|
|
|
|
# All the preparing..
|
|
prepare prepare-all: prepare1
|
|
|
|
# Leave this as default for preprocessing vmlinux.lds.S, which is now
|
|
# done in arch/$(ARCH)/kernel/Makefile
|
|
|
|
export CPPFLAGS_linuxbios.lds += -P -C -U$(ARCH)
|
|
|
|
# Split autoconf.h into include/linux/config/*
|
|
|
|
include/config/MARKER: scripts/basic/split-include include/linux/autoconf.h
|
|
@echo ' SPLIT include/linux/autoconf.h -> include/config/*'
|
|
@scripts/basic/split-include include/linux/autoconf.h include/config
|
|
@touch $@
|
|
|
|
# Generate some files
|
|
# ---------------------------------------------------------------------------
|
|
|
|
# LINUXBIOSRELEASE can change from a few different places, meaning version.h
|
|
# needs to be updated, so this check is forced on all builds
|
|
|
|
uts_len := 64
|
|
|
|
define filechk_version.h
|
|
if [ `echo -n "$(LINUXBIOSRELEASE)" | wc -c ` -gt $(uts_len) ]; then \
|
|
echo '"$(LINUXBIOSRELEASE)" exceeds $(uts_len) characters' >&2; \
|
|
exit 1; \
|
|
fi; \
|
|
(echo \#define UTS_RELEASE \"$(LINUXBIOSRELEASE)\"; \
|
|
echo \#define LINUX_VERSION_CODE `expr $(VERSION) \\* 65536 + $(PATCHLEVEL) \\* 256 + $(SUBLEVEL)`; \
|
|
echo '#define LINUXBIOS_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))'; \
|
|
)
|
|
endef
|
|
|
|
include/linuxbios/version.h: $(srctree)/Makefile .config .kernelrelease FORCE
|
|
$(call filechk,version.h)
|
|
|
|
# ---------------------------------------------------------------------------
|
|
|
|
PHONY += depend dep
|
|
depend dep:
|
|
@echo '*** Warning: make $@ is unnecessary now.'
|
|
|
|
|
|
###
|
|
# Cleaning is done on three levels.
|
|
# make clean Delete most generated files
|
|
# Leave enough to build external modules
|
|
# make mrproper Delete the current configuration, and all generated files
|
|
# make distclean Remove editor backup files, patch leftover files and the like
|
|
|
|
# Directories & files removed with 'make clean'
|
|
CLEAN_DIRS += $(MODVERDIR)
|
|
CLEAN_FILES += linuxbios.rom System.map \
|
|
.tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map
|
|
|
|
# Directories & files removed with 'make mrproper'
|
|
MRPROPER_DIRS += include/config
|
|
MRPROPER_FILES += .config .config.old include/asm .version .old_version \
|
|
include/linux/autoconf.h include/linux/version.h \
|
|
.kernelrelease Module.symvers tags TAGS cscope*
|
|
|
|
# clean - Delete most, but leave enough to build external modules
|
|
#
|
|
clean: rm-dirs := $(CLEAN_DIRS)
|
|
clean: rm-files := $(CLEAN_FILES)
|
|
clean-dirs := $(addprefix _clean_,$(srctree) $(linuxbios-alldirs))
|
|
|
|
PHONY += $(clean-dirs) clean archclean
|
|
$(clean-dirs):
|
|
$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
|
|
|
|
clean: $(clean-dirs)
|
|
$(call cmd,rmdirs)
|
|
$(call cmd,rmfiles)
|
|
@find . $(RCS_FIND_IGNORE) \
|
|
\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
|
|
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \
|
|
-type f -print | xargs rm -f
|
|
|
|
# mrproper - Delete all generated files, including .config
|
|
#
|
|
mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
|
|
mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
|
|
mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts)
|
|
|
|
PHONY += $(mrproper-dirs) mrproper archmrproper
|
|
$(mrproper-dirs):
|
|
$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
|
|
|
|
mrproper: clean $(mrproper-dirs)
|
|
$(call cmd,rmdirs)
|
|
$(call cmd,rmfiles)
|
|
|
|
# distclean
|
|
#
|
|
PHONY += distclean
|
|
|
|
distclean: mrproper
|
|
@find $(srctree) $(RCS_FIND_IGNORE) \
|
|
\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
|
|
-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
|
|
-o -name '.*.rej' -o -size 0 \
|
|
-o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \
|
|
-type f -print | xargs rm -f
|
|
|
|
|
|
# Packaging of linuxbios to various formats -- compression will go here!
|
|
# ---------------------------------------------------------------------------
|
|
# rpm target kept for backward compatibility
|
|
package-dir := $(srctree)/scripts/package
|
|
|
|
%pkg: FORCE
|
|
$(Q)$(MAKE) $(build)=$(package-dir) $@
|
|
rpm: FORCE
|
|
$(Q)$(MAKE) $(build)=$(package-dir) $@
|
|
|
|
|
|
# Brief documentation of the typical targets used
|
|
# ---------------------------------------------------------------------------
|
|
|
|
boards := $(wildcard $(srctree)/arch/$(ARCH)/configs/*_defconfig)
|
|
boards := $(notdir $(boards))
|
|
|
|
help:
|
|
@echo 'Cleaning targets:'
|
|
@echo ' clean - remove most generated files but keep the config'
|
|
@echo ' mrproper - remove all generated files + config + various backup files'
|
|
@echo ''
|
|
@echo 'Configuration targets:'
|
|
@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
|
|
@echo ''
|
|
@echo 'Other generic targets:'
|
|
@echo ' all - Build all targets marked with [*]'
|
|
@echo '* vmlinux - Build the bare kernel'
|
|
@echo '* modules - Build all modules'
|
|
@echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'
|
|
@echo ' dir/ - Build all files in dir and below'
|
|
@echo ' dir/file.[ois] - Build specified target only'
|
|
@echo ' dir/file.ko - Build module including final link'
|
|
@echo ' rpm - Build a kernel as an RPM package'
|
|
@echo ' tags/TAGS - Generate tags file for editors'
|
|
@echo ' cscope - Generate cscope index'
|
|
@echo ' kernelrelease - Output the release version string'
|
|
@echo ' kernelversion - Output the version stored in Makefile'
|
|
@echo ''
|
|
@echo 'Static analysers'
|
|
@echo ' checkstack - Generate a list of stack hogs'
|
|
@echo ' namespacecheck - Name space analysis on compiled kernel'
|
|
@echo ''
|
|
@echo 'Kernel packaging:'
|
|
@$(MAKE) $(build)=$(package-dir) help
|
|
@echo ''
|
|
@echo 'Documentation targets:'
|
|
@$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp
|
|
@echo ''
|
|
@echo 'Architecture specific targets ($(ARCH)):'
|
|
@$(if $(archhelp),$(archhelp),\
|
|
echo ' No architecture specific help defined for $(ARCH)')
|
|
@echo ''
|
|
@$(if $(boards), \
|
|
$(foreach b, $(boards), \
|
|
printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \
|
|
echo '')
|
|
|
|
@echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
|
|
@echo ' make O=dir [targets] Locate all output files in "dir", including .config'
|
|
@echo ' make C=1 [targets] Check all c source with $$CHECK (sparse)'
|
|
@echo ' make C=2 [targets] Force check of all c source with $$CHECK (sparse)'
|
|
@echo ''
|
|
@echo 'Execute "make" or "make all" to build all targets marked with [*] '
|
|
@echo 'For further info see the ./README file'
|
|
|
|
|
|
# Documentation targets
|
|
# ---------------------------------------------------------------------------
|
|
%docs: scripts_basic FORCE
|
|
$(Q)$(MAKE) $(build)=Documentation/DocBook $@
|
|
|
|
# Scripts to check various things for consistency
|
|
# ---------------------------------------------------------------------------
|
|
|
|
includecheck:
|
|
find * $(RCS_FIND_IGNORE) \
|
|
-name '*.[hcS]' -type f -print | sort \
|
|
| xargs $(PERL) -w scripts/checkincludes.pl
|
|
|
|
versioncheck:
|
|
find * $(RCS_FIND_IGNORE) \
|
|
-name '*.[hcS]' -type f -print | sort \
|
|
| xargs $(PERL) -w scripts/checkversion.pl
|
|
|
|
namespacecheck:
|
|
$(PERL) $(srctree)/scripts/namespace.pl
|
|
|
|
endif #ifeq ($(config-targets),1)
|
|
endif #ifeq ($(mixed-targets),1)
|
|
|
|
PHONY += checkstack
|
|
checkstack:
|
|
$(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \
|
|
$(PERL) $(src)/scripts/checkstack.pl $(ARCH)
|
|
|
|
linuxbiosrelease:
|
|
$(if $(wildcard .linuxbiosrelease), $(Q)echo $(LINUXBIOSRELEASE), \
|
|
$(error linuxbiosrelease not valid - run 'make *config' to update it))
|
|
linuxbiosversion:
|
|
@echo $(LINUXBIOSVERSION)
|
|
|
|
# Single targets
|
|
# ---------------------------------------------------------------------------
|
|
# Single targets are compatible with:
|
|
# - build whith mixed source and output
|
|
# - build with separate output dir 'make O=...'
|
|
# - external modules
|
|
#
|
|
# target-dir => where to store outputfile
|
|
# build-dir => directory in kernel source tree to use
|
|
|
|
|
|
%.s: %.c prepare scripts FORCE
|
|
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
|
|
%.i: %.c prepare scripts FORCE
|
|
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
|
|
%.o: %.c prepare scripts FORCE
|
|
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
|
|
%.lst: %.c prepare scripts FORCE
|
|
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
|
|
%.s: %.S prepare scripts FORCE
|
|
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
|
|
%.o: %.S prepare scripts FORCE
|
|
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
|
|
|
|
# Modules
|
|
/ %/: prepare scripts FORCE
|
|
$(Q)$(MAKE) LBBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
|
|
$(build)=$(build-dir)
|
|
%.ko: prepare scripts FORCE
|
|
$(Q)$(MAKE) LBBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
|
|
$(build)=$(build-dir) $(@:.ko=.o)
|
|
$(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost
|
|
|
|
# FIXME Should go into a make.lib or something
|
|
# ===========================================================================
|
|
|
|
quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
|
|
cmd_rmdirs = rm -rf $(rm-dirs)
|
|
|
|
quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
|
|
cmd_rmfiles = rm -f $(rm-files)
|
|
|
|
|
|
a_flags = -Wp,-MD,$(depfile) $(AFLAGS) $(AFLAGS_LINUXBIOS) \
|
|
$(NOSTDINC_FLAGS) $(CPPFLAGS) \
|
|
$(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(*F).o)
|
|
|
|
quiet_cmd_as_o_S = AS $@
|
|
cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<
|
|
|
|
# read all saved command lines
|
|
|
|
targets := $(wildcard $(sort $(targets)))
|
|
cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
|
|
|
|
ifneq ($(cmd_files),)
|
|
$(cmd_files): ; # Do not try to update included dependency files
|
|
include $(cmd_files)
|
|
endif
|
|
|
|
# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir
|
|
# Usage:
|
|
# $(Q)$(MAKE) $(clean)=dir
|
|
clean := -f $(if $(LBBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj
|
|
|
|
endif # skip-makefile
|
|
|
|
PHONY += FORCE
|
|
FORCE:
|
|
|
|
|
|
# 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)
|
|
|
|
|
|
endif |