diff options
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 129 |
1 files changed, 45 insertions, 84 deletions
@@ -1,6 +1,6 @@ VERSION = 2 PATCHLEVEL = 6 -SUBLEVEL = 35 +SUBLEVEL = 36 EXTRAVERSION = -rc1 NAME = Sheep on Meth @@ -183,11 +183,13 @@ SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \ # CROSS_COMPILE can be set on the command line # make CROSS_COMPILE=ia64-linux- # Alternatively CROSS_COMPILE can be set in the environment. +# A third alternative is to store a setting in .config so that plain +# "make" in the configured kernel build directory always uses that. # Default value for CROSS_COMPILE is not to prefix executables # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile export KBUILD_BUILDHOST := $(SUBARCH) ARCH ?= $(SUBARCH) -CROSS_COMPILE ?= +CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%) # Architecture as present in compile.h UTS_MACHINE := $(ARCH) @@ -329,10 +331,9 @@ CHECK = sparse CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ -Wbitwise -Wno-return-void $(CF) -MODFLAGS = -DMODULE -CFLAGS_MODULE = $(MODFLAGS) -AFLAGS_MODULE = $(MODFLAGS) -LDFLAGS_MODULE = -T $(srctree)/scripts/module-common.lds +CFLAGS_MODULE = +AFLAGS_MODULE = +LDFLAGS_MODULE = CFLAGS_KERNEL = AFLAGS_KERNEL = CFLAGS_GCOV = -fprofile-arcs -ftest-coverage @@ -351,7 +352,12 @@ KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ -Werror-implicit-function-declaration \ -Wno-format-security \ -fno-delete-null-pointer-checks +KBUILD_AFLAGS_KERNEL := +KBUILD_CFLAGS_KERNEL := KBUILD_AFLAGS := -D__ASSEMBLY__ +KBUILD_AFLAGS_MODULE := -DMODULE +KBUILD_CFLAGS_MODULE := -DMODULE +KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds # Read KERNELRELEASE from include/config/kernel.release (if it exists) KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) @@ -366,6 +372,8 @@ export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE +export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE +export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL # When compiling out-of-tree modules, put MODVERDIR in the module # tree rather than in the kernel tree. The kernel tree might @@ -409,9 +417,9 @@ endif # 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% \ + cscope TAGS tags help %docs check% coccicheck \ include/linux/version.h headers_% \ - kernelrelease kernelversion + kernelversion %src-pkg config-targets := 0 mixed-targets := 0 @@ -523,7 +531,7 @@ endif # $(dot-config) # 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 overridden in the arch makefile +# Defaults to vmlinux, but the arch makefile usually adds further targets all: vmlinux ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE @@ -554,6 +562,10 @@ KBUILD_CFLAGS += -g KBUILD_AFLAGS += -gdwarf-2 endif +ifdef CONFIG_DEBUG_INFO_REDUCED +KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) +endif + ifdef CONFIG_FUNCTION_TRACER KBUILD_CFLAGS += -pg endif @@ -576,9 +588,6 @@ KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,) # disable invalid "can't wrap" optimizations for signed / pointers KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow) -# revert to pre-gcc-4.4 behaviour of .eh_frame -KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) - # conserve stack if available KBUILD_CFLAGS += $(call cc-option,-fconserve-stack) @@ -603,7 +612,7 @@ endif # Use --build-id when available. LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ $(call cc-ldoption, -Wl$(comma)--build-id,)) -LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) +KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) ifeq ($(CONFIG_STRIP_ASM_SYMS),y) @@ -882,73 +891,11 @@ $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; PHONY += $(vmlinux-dirs) $(vmlinux-dirs): prepare scripts $(Q)$(MAKE) $(build)=$@ -ifdef CONFIG_MODULES - $(Q)$(MAKE) $(modbuiltin)=$@ -endif - -# Build the kernel release string -# -# The KERNELRELEASE value built here is stored in the file -# include/config/kernel.release, and is used when executing several -# make targets, such as "make install" or "make modules_install." -# -# The eventual kernel release string consists of the following fields, -# shown in a hierarchical format to show how smaller parts are concatenated -# to form the larger and final value, with values coming from places like -# the Makefile, kernel config options, make command line options and/or -# SCM tag information. -# -# $(KERNELVERSION) -# $(VERSION) eg, 2 -# $(PATCHLEVEL) eg, 6 -# $(SUBLEVEL) eg, 18 -# $(EXTRAVERSION) eg, -rc6 -# $(localver-full) -# $(localver) -# localversion* (files without backups, containing '~') -# $(CONFIG_LOCALVERSION) (from kernel config setting) -# $(localver-auto) (only if CONFIG_LOCALVERSION_AUTO is set) -# ./scripts/setlocalversion (SCM tag, if one exists) -# $(LOCALVERSION) (from make command line if provided) -# -# Note how the final $(localver-auto) string is included *only* if the -# kernel config option CONFIG_LOCALVERSION_AUTO is selected. Also, at the -# moment, only git is supported but other SCMs can edit the script -# scripts/setlocalversion and add the appropriate checks as needed. - -pattern = ".*/localversion[^~]*" -string = $(shell cat /dev/null \ - `find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`) - -localver = $(subst $(space),, $(string) \ - $(patsubst "%",%,$(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 determined by the SCM used. -# -# .scmversion is used when generating rpm packages so we do not loose -# the version information from the SCM when we do the build of the kernel -# from the copied source -ifdef CONFIG_LOCALVERSION_AUTO - -ifeq ($(wildcard .scmversion),) - _localver-auto = $(shell $(CONFIG_SHELL) \ - $(srctree)/scripts/setlocalversion $(srctree)) -else - _localver-auto = $(shell cat .scmversion 2> /dev/null) -endif - - localver-auto = $(LOCALVERSION)$(_localver-auto) -endif - -localver-full = $(localver)$(localver-auto) # Store (new) KERNELRELASE string in include/config/kernel.release -kernelrelease = $(KERNELVERSION)$(localver-full) include/config/kernel.release: include/config/auto.conf FORCE $(Q)rm -f $@ - $(Q)echo $(kernelrelease) > $@ + $(Q)echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" > $@ # Things we need to do before we recursively start building the kernel @@ -1087,13 +1034,18 @@ all: modules # using awk while concatenating to the final file. PHONY += modules -modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) +modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order - $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.builtin) > $(objtree)/modules.builtin @$(kecho) ' Building modules, stage 2.'; $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild +modules.builtin: $(vmlinux-dirs:%=%/modules.builtin) + $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin + +%/modules.builtin: include/config/auto.conf + $(Q)$(MAKE) $(modbuiltin)=$* + # Target to prepare building external modules PHONY += modules_prepare @@ -1215,6 +1167,8 @@ distclean: mrproper # rpm target kept for backward compatibility package-dir := $(srctree)/scripts/package +%src-pkg: FORCE + $(Q)$(MAKE) $(build)=$(package-dir) $@ %pkg: include/config/kernel.release FORCE $(Q)$(MAKE) $(build)=$(package-dir) $@ rpm: include/config/kernel.release FORCE @@ -1247,7 +1201,9 @@ help: @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' @echo ' dir/ - Build all files in dir and below' - @echo ' dir/file.[ois] - Build specified target only' + @echo ' dir/file.[oisS] - Build specified target only' + @echo ' dir/file.lst - Build specified mixed source/assembly target only' + @echo ' (requires a recent binutils and recent build (System.map))' @echo ' dir/file.ko - Build module including final link' @echo ' modules_prepare - Set up for building external modules' @echo ' tags/TAGS - Generate tags file for editors' @@ -1264,8 +1220,9 @@ help: @echo ' includecheck - Check for duplicate included header files' @echo ' export_report - List the usages of all exported symbols' @echo ' headers_check - Sanity check on exported headers' - @echo ' headerdep - Detect inclusion cycles in headers'; \ - echo '' + @echo ' headerdep - Detect inclusion cycles in headers' + @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help + @echo '' @echo 'Kernel packaging:' @$(MAKE) $(build)=$(package-dir) help @echo '' @@ -1424,6 +1381,9 @@ versioncheck: -name '*.[hcS]' -type f -print | sort \ | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl +coccicheck: + $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ + namespacecheck: $(PERL) $(srctree)/scripts/namespace.pl @@ -1448,9 +1408,9 @@ checkstack: $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) -kernelrelease: - $(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \ - $(error kernelrelease not valid - run 'make prepare' to update it)) +kernelrelease: include/config/kernel.release + @echo $(KERNELRELEASE) + kernelversion: @echo $(KERNELVERSION) @@ -1527,6 +1487,7 @@ cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \ + $(KBUILD_AFLAGS_KERNEL) \ $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(KBUILD_CPPFLAGS) \ $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o) |
