aboutsummaryrefslogtreecommitdiff
path: root/Makefile
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-19 13:47:38 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-19 13:47:38 -0700
commit4800be295c34268fd3211d49828bfaa6bf62867f (patch)
tree10f9b9094a749f26b524ec6ba601284d54f9476c /Makefile
parentc4ec20717313daafba59225f812db89595952b83 (diff)
parent7bb9d092de0b21f8f3f0a20dc2ec84395549fb62 (diff)
downloadlinux-linaro-stable-4800be295c34268fd3211d49828bfaa6bf62867f.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: kbuild: fix first module build kconfig: update kconfig-language text kbuild: introduce cc-cross-prefix kbuild: disable depmod in cross-compile kernel build kbuild: make deb-pkg - add 'Provides:' line kconfig: comment typo in scripts/kconfig/Makefile. kbuild: stop docproc segfaulting when SRCTREE isn't set. kbuild: modpost problem when symbols move from one module to another kbuild: cscope - filter out .tmp_* in find_sources kbuild: mailing list has moved kbuild: check asm symlink when building a kernel
Diffstat (limited to 'Makefile')
-rw-r--r--Makefile71
1 files changed, 38 insertions, 33 deletions
diff --git a/Makefile b/Makefile
index 68ef80b30340..f9c264e243a2 100644
--- a/Makefile
+++ b/Makefile
@@ -887,10 +887,7 @@ prepare2: prepare3 outputmakefile
prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \
include/asm include/config/auto.conf
-ifneq ($(KBUILD_MODULES),)
- $(Q)mkdir -p $(MODVERDIR)
- $(Q)rm -f $(MODVERDIR)/*
-endif
+ $(cmd_crmodverdir)
archprepare: prepare1 scripts_basic
@@ -906,14 +903,24 @@ prepare: prepare0
export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)
-# FIXME: The asm symlink changes when $(ARCH) changes. That's
-# hard to detect, but I suppose "make mrproper" is a good idea
-# before switching between archs anyway.
-
-include/asm:
- @echo ' SYMLINK $@ -> include/asm-$(SRCARCH)'
- $(Q)if [ ! -d include ]; then mkdir -p include; fi;
- @ln -fsn asm-$(SRCARCH) $@
+# The asm symlink changes when $(ARCH) changes.
+# Detect this and ask user to run make mrproper
+
+include/asm: FORCE
+ $(Q)set -e; asmlink=`readlink include/asm | cut -d '-' -f 2`; \
+ if [ -L include/asm ]; then \
+ 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; \
+ else \
+ echo ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \
+ if [ ! -d include ]; then \
+ mkdir -p include; \
+ fi; \
+ ln -fsn asm-$(SRCARCH) $@; \
+ fi
# Generate some files
# ---------------------------------------------------------------------------
@@ -1023,19 +1030,12 @@ _modinst_:
fi
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
-# If System.map exists, run depmod. This deliberately does not have a
-# dependency on System.map since that would run the dependency tree on
-# vmlinux. This depmod is only for convenience to give the initial
+# This depmod is only for convenience to give the initial
# boot a modules.dep even before / is mounted read-write. However the
# boot script depmod is the master version.
-ifeq "$(strip $(INSTALL_MOD_PATH))" ""
-depmod_opts :=
-else
-depmod_opts := -b $(INSTALL_MOD_PATH) -r
-endif
PHONY += _modinst_post
_modinst_post: _modinst_
- if [ -r System.map -a -x $(DEPMOD) ]; then $(DEPMOD) -ae -F System.map $(depmod_opts) $(KERNELRELEASE); fi
+ $(call cmd,depmod)
else # CONFIG_MODULES
@@ -1223,8 +1223,7 @@ else # KBUILD_EXTMOD
KBUILD_MODULES := 1
PHONY += crmodverdir
crmodverdir:
- $(Q)mkdir -p $(MODVERDIR)
- $(Q)rm -f $(MODVERDIR)/*
+ $(cmd_crmodverdir)
PHONY += $(objtree)/Module.symvers
$(objtree)/Module.symvers:
@@ -1252,15 +1251,6 @@ _emodinst_:
$(Q)mkdir -p $(MODLIB)/$(install-dir)
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
-# Run depmod only is we have System.map and depmod is executable
-quiet_cmd_depmod = DEPMOD $(KERNELRELEASE)
- cmd_depmod = if [ -r System.map -a -x $(DEPMOD) ]; then \
- $(DEPMOD) -ae -F System.map \
- $(if $(strip $(INSTALL_MOD_PATH)), \
- -b $(INSTALL_MOD_PATH) -r) \
- $(KERNELRELEASE); \
- fi
-
PHONY += _emodinst_post
_emodinst_post: _emodinst_
$(call cmd,depmod)
@@ -1344,7 +1334,7 @@ define find-sources
find $(__srctree)include/asm-generic $(RCS_FIND_IGNORE) \
-name $1 -print; \
find $(__srctree) $(RCS_FIND_IGNORE) \
- \( -name include -o -name arch \) -prune -o \
+ \( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \
-name $1 -print; \
)
endef
@@ -1493,9 +1483,11 @@ endif
# Modules
/ %/: prepare scripts FORCE
+ $(cmd_crmodverdir)
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
$(build)=$(build-dir)
%.ko: prepare scripts FORCE
+ $(cmd_crmodverdir)
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
$(build)=$(build-dir) $(@:.ko=.o)
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
@@ -1509,6 +1501,19 @@ quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
cmd_rmfiles = rm -f $(rm-files)
+# Run depmod only is we have System.map and depmod is executable
+# and we build for the host arch
+quiet_cmd_depmod = DEPMOD $(KERNELRELEASE)
+ cmd_depmod = \
+ if [ -r System.map -a -x $(DEPMOD) -a "$(SUBARCH)" == "$(ARCH)" ]; then \
+ $(DEPMOD) -ae -F System.map \
+ $(if $(strip $(INSTALL_MOD_PATH)), -b $(INSTALL_MOD_PATH) -r) \
+ $(KERNELRELEASE); \
+ fi
+
+# Create temporary dir for module support files
+cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR); rm -f $(MODVERDIR)/*
+
a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \
$(NOSTDINC_FLAGS) $(KBUILD_CPPFLAGS) \