scripts/mkcompile_h: don't test for hardcoded paths
[linux-2.6.git] / Makefile
index 5e92ca5..03053c6 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
-SUBLEVEL = 32
-EXTRAVERSION =
+SUBLEVEL = 33
+EXTRAVERSION = -rc6
 NAME = Man-Eating Seals of Antiquity
 
 # *DOCUMENTATION*
@@ -18,10 +18,9 @@ MAKEFLAGS += -rR --no-print-directory
 
 # Avoid funny character set dependencies
 unexport LC_ALL
-LC_CTYPE=C
 LC_COLLATE=C
 LC_NUMERIC=C
-export LC_CTYPE LC_COLLATE LC_NUMERIC
+export LC_COLLATE LC_NUMERIC
 
 # We are using a recursive build, so we need to do a little thinking
 # to get the ordering right.
@@ -184,11 +183,14 @@ 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)
@@ -341,10 +343,9 @@ CFLAGS_GCOV        = -fprofile-arcs -ftest-coverage
 
 # Use LINUXINCLUDE when you must reference the include/ directory.
 # Needed to be compatible with the O= option
-LINUXINCLUDE    := -Iinclude \
-                   $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \
-                   -I$(srctree)/arch/$(hdr-arch)/include               \
-                   -include include/linux/autoconf.h
+LINUXINCLUDE    := -I$(srctree)/arch/$(hdr-arch)/include -Iinclude \
+                   $(if $(KBUILD_SRC), -I$(srctree)/include) \
+                   -include include/generated/autoconf.h
 
 KBUILD_CPPFLAGS := -D__KERNEL__
 
@@ -472,7 +473,7 @@ ifeq ($(KBUILD_EXTMOD),)
 # Carefully list dependencies so we do not try to build scripts twice
 # in parallel
 PHONY += scripts
-scripts: scripts_basic include/config/auto.conf
+scripts: scripts_basic include/config/auto.conf include/config/tristate.conf
        $(Q)$(MAKE) $(build)=$(@)
 
 # Objects we will link into vmlinux / subdirs we need to visit
@@ -499,18 +500,18 @@ $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
 # with it and forgot to run make oldconfig.
 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
 # we execute the config step to be sure to catch updated Kconfig files
-include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
+include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
        $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
 else
-# external modules needs include/linux/autoconf.h and include/config/auto.conf
+# external modules needs include/generated/autoconf.h and include/config/auto.conf
 # but do not care if they are up-to-date. Use auto.conf to trigger the test
 PHONY += include/config/auto.conf
 
 include/config/auto.conf:
-       $(Q)test -e include/linux/autoconf.h -a -e $@ || (              \
+       $(Q)test -e include/generated/autoconf.h -a -e $@ || (          \
        echo;                                                           \
        echo "  ERROR: Kernel configuration is invalid.";               \
-       echo "         include/linux/autoconf.h or $@ are missing.";    \
+       echo "         include/generated/autoconf.h or $@ are missing.";\
        echo "         Run 'make oldconfig && make prepare' on kernel src to fix it.";  \
        echo;                                                           \
        /bin/false)
@@ -884,6 +885,9 @@ $(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
 #
@@ -906,14 +910,19 @@ $(vmlinux-dirs): prepare scripts
 #        $(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)
+#        $(LOCALVERSION)               (from make command line, if provided)
+#        $(localver-extra)
+#          $(scm-identifier)           (unique SCM tag, if one exists)
+#            ./scripts/setlocalversion (only with CONFIG_LOCALVERSION_AUTO)
+#            .scmversion               (only with CONFIG_LOCALVERSION_AUTO)
+#          +                           (only without CONFIG_LOCALVERSION_AUTO
+#                                       and without LOCALVERSION= and
+#                                       repository is at non-tagged commit)
 #
-#  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.
+# For kernels without CONFIG_LOCALVERSION_AUTO compiled from an SCM that has
+# been revised beyond a tagged commit, `+' is appended to the version string
+# when not overridden by using "make LOCALVERSION=".  This indicates that the
+# kernel is not a vanilla release version and has been modified.
 
 pattern = ".*/localversion[^~]*"
 string  = $(shell cat /dev/null \
@@ -922,26 +931,32 @@ string  = $(shell cat /dev/null \
 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.
+# scripts/setlocalversion is called to create a unique identifier if the source
+# is managed by a known SCM and the repository has been revised since the last
+# tagged (release) commit.  The format of the identifier is determined by the
+# SCM's implementation.
 #
 # .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) \
+        scm-identifier = $(shell $(CONFIG_SHELL) \
                          $(srctree)/scripts/setlocalversion $(srctree))
 else
-        _localver-auto = $(shell cat .scmversion 2> /dev/null)
+        scm-identifier = $(shell cat .scmversion 2> /dev/null)
 endif
 
-       localver-auto  = $(LOCALVERSION)$(_localver-auto)
+ifdef CONFIG_LOCALVERSION_AUTO
+       localver-extra = $(scm-identifier)
+else
+       ifneq ($scm-identifier,)
+               ifeq ($(LOCALVERSION),)
+                       localver-extra = +
+               endif
+       endif
 endif
 
-localver-full = $(localver)$(localver-auto)
+localver-full = $(localver)$(LOCALVERSION)$(localver-extra)
 
 # Store (new) KERNELRELASE string in include/config/kernel.release
 kernelrelease = $(KERNELVERSION)$(localver-full)
@@ -962,7 +977,6 @@ PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
 # 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 $(srctree)
-# 2) Create the include2 directory, used for the second asm symlink
 prepare3: include/config/kernel.release
 ifneq ($(KBUILD_SRC),)
        @$(kecho) '  Using $(srctree) as source for kernel'
@@ -971,17 +985,13 @@ ifneq ($(KBUILD_SRC),)
                echo "  in the '$(srctree)' directory.";\
                /bin/false; \
        fi;
-       $(Q)if [ ! -d include2 ]; then                                  \
-           mkdir -p include2;                                          \
-           ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm;     \
-       fi
 endif
 
 # 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 include/linux/version.h include/generated/utsrelease.h \
+                   include/config/auto.conf
        $(cmd_crmodverdir)
 
 archprepare: prepare1 scripts_basic
@@ -993,42 +1003,6 @@ prepare0: archprepare FORCE
 # All the preparing..
 prepare: prepare0
 
-# The asm symlink changes when $(ARCH) changes.
-# Detect this and ask user to run make mrproper
-# If asm is a stale symlink (point to dir that does not exist) remove it
-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;                                                        \
-               test -e $$asmlink || rm include/asm;                       \
-       elif [ -d include/asm ]; then                                      \
-               echo "ERROR: $@ is a directory but a symlink was expected";\
-               exit 1;                                                    \
-       fi
-endef
-
-# We create the target directory of the symlink if it does
-# not exist so the test in check-symlink works and we have a
-# directory for generated filesas used by some architectures.
-define create-symlink
-       if [ ! -L include/asm ]; then                                      \
-                       $(kecho) '  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
 # ---------------------------------------------------------------------------
 
@@ -1053,7 +1027,7 @@ endef
 include/linux/version.h: $(srctree)/Makefile FORCE
        $(call filechk,version.h)
 
-include/linux/utsrelease.h: include/config/kernel.release FORCE
+include/generated/utsrelease.h: include/config/kernel.release FORCE
        $(call filechk,utsrelease.h)
 
 PHONY += headerdep
@@ -1083,11 +1057,6 @@ firmware_install: FORCE
 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)
@@ -1102,10 +1071,10 @@ headers_install_all:
 
 PHONY += headers_install
 headers_install: __headers
-       $(if $(wildcard $(srctree)/$(hdr-dir)/Kbuild),, \
+       $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/asm/Kbuild),, \
        $(error Headers not exportable for the $(SRCARCH) architecture))
        $(Q)$(MAKE) $(hdr-inst)=include
-       $(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst)
+       $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/asm $(hdr-dst)
 
 PHONY += headers_check_all
 headers_check_all: headers_install_all
@@ -1114,7 +1083,7 @@ headers_check_all: headers_install_all
 PHONY += headers_check
 headers_check: headers_install
        $(Q)$(MAKE) $(hdr-inst)=include HDRCHECK=1
-       $(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) HDRCHECK=1
+       $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/asm $(hdr-dst) HDRCHECK=1
 
 # ---------------------------------------------------------------------------
 # Modules
@@ -1134,6 +1103,7 @@ all: modules
 PHONY += modules
 modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux)
        $(Q)$(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
@@ -1163,6 +1133,7 @@ _modinst_:
                ln -s $(objtree) $(MODLIB)/build ; \
        fi
        @cp -f $(objtree)/modules.order $(MODLIB)/
+       @cp -f $(objtree)/modules.builtin $(MODLIB)/
        $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
 
 # This depmod is only for convenience to give the initial
@@ -1201,12 +1172,10 @@ CLEAN_FILES +=  vmlinux System.map \
                 .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map
 
 # Directories & files removed with 'make mrproper'
-MRPROPER_DIRS  += include/config include2 usr/include include/generated
-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 Module.markers tags TAGS cscope*
+MRPROPER_DIRS  += include/config usr/include include/generated
+MRPROPER_FILES += .config .config.old .version .old_version             \
+                  include/linux/version.h                               \
+                 Module.symvers tags TAGS cscope*
 
 # clean - Delete most, but leave enough to build external modules
 #
@@ -1225,7 +1194,7 @@ clean: archclean $(clean-dirs)
                \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
                -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
                -o -name '*.symtypes' -o -name 'modules.order' \
-               -o -name 'Module.markers' -o -name '.tmp_*.o.*' \
+               -o -name modules.builtin -o -name '.tmp_*.o.*' \
                -o -name '*.gcno' \) -type f -print | xargs rm -f
 
 # mrproper - Delete all generated files, including .config
@@ -1292,7 +1261,9 @@ 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'
@@ -1423,8 +1394,8 @@ $(clean-dirs):
 
 clean: rm-dirs := $(MODVERDIR)
 clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers \
-                   $(KBUILD_EXTMOD)/Module.markers \
-                   $(KBUILD_EXTMOD)/modules.order
+                   $(KBUILD_EXTMOD)/modules.order \
+                   $(KBUILD_EXTMOD)/modules.builtin
 clean: $(clean-dirs)
        $(call cmd,rmdirs)
        $(call cmd,rmfiles)