From 06300b21f4c79fd1578f4b7ca4b314fbab61a383 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@mars.ravnborg.org>
Date: Wed, 25 Jan 2006 07:13:18 +0100
Subject: kbuild: support building individual files for external modules
Support building individual files when dealing with separate modules.
So say you have a module named "foo" which consist of two .o files bar.o
and fun.o.
You can then do:
make -C $KERNELSRC M=`pwd` bar.o
make -C $KERNELSRC M=`pwd` bar.lst
make -C $KERNELSRC M=`pwd` bar.i
make -C $KERNELSRC M=`pwd` / <= will build all .o files
and link foo.o
make -C $KERNELSRC M=`pwd` foo.ko <= will build the module
and do the modpost step
to create foo.ko
The above will also work if the external module is placed in a
subdirectory using a hirachy of kbuild files.
Thanks to Andreas Gruenbacher <agruen@suse.de> for initial feature
request / bug report.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
Makefile | 66 ++++++++++++++++++++++++++++++++++++++++++----------------------
1 file changed, 44 insertions(+), 22 deletions(-)
(limited to 'Makefile')
diff --git a/Makefile b/Makefile
index 77a448c8e776..639d8a48bbde 100644
--- a/Makefile
+++ b/Makefile
@@ -137,7 +137,7 @@ objtree := $(CURDIR)
src := $(srctree)
obj := $(objtree)
-VPATH := $(srctree)
+VPATH := $(srctree):$(KBUILD_EXTMOD)
export srctree objtree VPATH TOPDIR
@@ -849,27 +849,6 @@ prepare prepare-all: prepare0
export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)
-# Single targets
-# ---------------------------------------------------------------------------
-
-%.s: %.c scripts FORCE
- $(Q)$(MAKE) $(build)=$(@D) $@
-%.i: %.c scripts FORCE
- $(Q)$(MAKE) $(build)=$(@D) $@
-%.o: %.c scripts FORCE
- $(Q)$(MAKE) $(build)=$(@D) $@
-%.ko: scripts FORCE
- $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) $(build)=$(@D) $(@:.ko=.o)
- $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost
-%/: scripts prepare FORCE
- $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) $(build)=$(@D)
-%.lst: %.c scripts FORCE
- $(Q)$(MAKE) $(build)=$(@D) $@
-%.s: %.S scripts FORCE
- $(Q)$(MAKE) $(build)=$(@D) $@
-%.o: %.S scripts FORCE
- $(Q)$(MAKE) $(build)=$(@D) $@
-
# 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.
@@ -1192,6 +1171,11 @@ help:
@echo ' modules_install - install the module'
@echo ' clean - remove generated files in module directory only'
@echo ''
+
+# Dummies...
+.PHONY: prepare scripts
+prepare: ;
+scripts: ;
endif # KBUILD_EXTMOD
# Generate tags for editors
@@ -1313,6 +1297,44 @@ kernelrelease:
kernelversion:
@echo $(KERNELVERSION)
+# Single targets
+# ---------------------------------------------------------------------------
+# The directory part is taken from first prerequisite, so this
+# works even with external modules
+%.s: %.c scripts FORCE
+ $(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@)
+%.i: %.c scripts FORCE
+ $(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@)
+%.o: %.c scripts FORCE
+ $(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@)
+%.lst: %.c scripts FORCE
+ $(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@)
+%.s: %.S scripts FORCE
+ $(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@)
+%.o: %.S scripts FORCE
+ $(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@)
+
+# For external modules we shall include any directory of the target,
+# but usual case there is no directory part.
+# make M=`pwd` module.o => $(dir $@)=./
+# make M=`pwd` foo/module.o => $(dir $@)=foo/
+# make M=`pwd` / => $(dir $@)=/
+
+ifeq ($(KBUILD_EXTMOD),)
+ target-dir = $(@D)
+else
+ zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
+ target-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
+endif
+
+/ %/: scripts prepare FORCE
+ $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
+ $(build)=$(target-dir)
+%.ko: scripts FORCE
+ $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
+ $(build)=$(target-dir) $(@:.ko=.o)
+ $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost
+
# FIXME Should go into a make.lib or something
# ===========================================================================
--
cgit v1.2.1
From 8999257c292cb757828ae3def9f5e9d894a24741 Mon Sep 17 00:00:00 2001
From: Martin Michlmayr <tbm@cyrius.com>
Date: Sat, 28 Jan 2006 18:38:15 +0000
Subject: kbuild: Accept various mips sub-types in SUBARCH
uname -m on MIPS can give a number of results, such as mips64. We
need to add another substitution to the sed call for SUBARCH in the
main Makefile.
Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'Makefile')
diff --git a/Makefile b/Makefile
index 639d8a48bbde..1db819ef0dac 100644
--- a/Makefile
+++ b/Makefile
@@ -151,7 +151,7 @@ export srctree objtree VPATH TOPDIR
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/ppc.*/powerpc/ -e s/mips.*/mips/ )
# Cross compiling and selecting different set of gcc/bin-utils
# ---------------------------------------------------------------------------
--
cgit v1.2.1
From fb3cbd2e575f9ac0700bfa1e7cb9f4119fbd0abd Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@mars.ravnborg.org>
Date: Sat, 28 Jan 2006 23:08:40 +0100
Subject: kbuild: avoid stale modules in $(MODVERDIR) for external modules
To avoid stale modules located in $(MODVERDIR) aka .tmp_versions/
always delete the directory when building an external module.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
Makefile | 1 +
1 file changed, 1 insertion(+)
(limited to 'Makefile')
diff --git a/Makefile b/Makefile
index 1db819ef0dac..fdb3dac3e70f 100644
--- a/Makefile
+++ b/Makefile
@@ -1126,6 +1126,7 @@ else # KBUILD_EXTMOD
KBUILD_MODULES := 1
.PHONY: crmodverdir
crmodverdir:
+ $(Q)rm -rf $(MODVERDIR)
$(Q)mkdir -p $(MODVERDIR)
.PHONY: $(objtree)/Module.symvers
--
cgit v1.2.1
From a67dc21a38055ec2d8d85b2f64d98091748569b3 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@mars.ravnborg.org>
Date: Sat, 28 Jan 2006 23:51:57 +0100
Subject: kbuild: run depmod when installing external modules
Following patch enables depmod support when installing external modules.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
Makefile | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)
(limited to 'Makefile')
diff --git a/Makefile b/Makefile
index fdb3dac3e70f..c55d0f1b85ec 100644
--- a/Makefile
+++ b/Makefile
@@ -1147,9 +1147,28 @@ modules: $(module-dirs)
$(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost
.PHONY: modules_install
-modules_install:
+modules_install: _emodinst_ _emodinst_post
+
+install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra)
+.PHONY: _emodinst_
+_emodinst_:
+ $(Q)rm -rf $(MODLIB)/$(install-dir)
+ $(Q)mkdir -p $(MODLIB)/$(install-dir)
$(Q)$(MAKE) -rR -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)
+
clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD))
.PHONY: $(clean-dirs) clean
--
cgit v1.2.1
From 20a468b51325b3636785a8ca0047ae514b39cbd5 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@mars.ravnborg.org>
Date: Sun, 22 Jan 2006 13:34:15 +0100
Subject: kbuild: make cc-version available in kbuild files
Move $(CC) support functions to Kbuild.include so they are available
in the kbuild files.
In addition the following was done:
o as-option documented in Documentation/kbuild/makefiles.txt
o Moved documentation to new section to match
new scope of functions
o added cc-ifversion used to conditionally select a text string
dependent on actual $(CC) version
o documented cc-ifversion
o change so Kbuild.include is read before the kbuild file
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
Makefile | 32 --------------------------------
1 file changed, 32 deletions(-)
(limited to 'Makefile')
diff --git a/Makefile b/Makefile
index c55d0f1b85ec..05b451a1b760 100644
--- a/Makefile
+++ b/Makefile
@@ -258,38 +258,6 @@ endif
export quiet Q KBUILD_VERBOSE
-######
-# cc support functions to be used (only) in arch/$(ARCH)/Makefile
-# See documentation in Documentation/kbuild/makefiles.txt
-
-# as-option
-# Usage: cflags-y += $(call as-option, -Wa$(comma)-isa=foo,)
-
-as-option = $(shell if $(CC) $(CFLAGS) $(1) -Wa,-Z -c -o /dev/null \
- -xassembler /dev/null > /dev/null 2>&1; then echo "$(1)"; \
- else echo "$(2)"; fi ;)
-
-# cc-option
-# Usage: cflags-y += $(call cc-option, -march=winchip-c6, -march=i586)
-
-cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
- > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
-
-# cc-option-yn
-# Usage: flag := $(call cc-option-yn, -march=winchip-c6)
-cc-option-yn = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
- > /dev/null 2>&1; then echo "y"; else echo "n"; fi;)
-
-# cc-option-align
-# Prefix align with either -falign or -malign
-cc-option-align = $(subst -functions=0,,\
- $(call cc-option,-falign-functions=0,-malign-functions=0))
-
-# cc-version
-# Usage gcc-ver := $(call cc-version $(CC))
-cc-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh \
- $(if $(1), $(1), $(CC)))
-
# Look for make include files relative to root of kernel src
MAKEFLAGS += --include-dir=$(srctree)
--
cgit v1.2.1
From e63046630c8a73825896cef140fbf49af233fd2a Mon Sep 17 00:00:00 2001
From: Adrian Bunk <bunk@stusta.de>
Date: Tue, 14 Feb 2006 15:58:15 +0100
Subject: kbuild: remove a tab from an empty line
Emacs warns if an otherwise empty line starts with a tab.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'Makefile')
diff --git a/Makefile b/Makefile
index 05b451a1b760..a55a1e4e6cda 100644
--- a/Makefile
+++ b/Makefile
@@ -1116,7 +1116,7 @@ modules: $(module-dirs)
.PHONY: modules_install
modules_install: _emodinst_ _emodinst_post
-
+
install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra)
.PHONY: _emodinst_
_emodinst_:
--
cgit v1.2.1
From 0f558c333445a0181f33f9e6f996ce7cf008206a Mon Sep 17 00:00:00 2001
From: Mattia Dongili <malattia@linux.it>
Date: Sun, 19 Feb 2006 13:50:37 +0100
Subject: kbuild: fix a cscope bug (make cscope segfaults)
Workaround a cscope bug where a trailing ':' in VPATH makes it segfault
and let it build the cross-reference succesfully.
VPATH=/home/mattia/devel/kernel/git/linux-2.6: cscope -b
[1] 17555 segmentation fault VPATH=/home/mattia/devel/kernel/git/linux-2.6: cscope -b
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'Makefile')
diff --git a/Makefile b/Makefile
index a55a1e4e6cda..7a95f4f8ef14 100644
--- a/Makefile
+++ b/Makefile
@@ -137,7 +137,7 @@ objtree := $(CURDIR)
src := $(srctree)
obj := $(objtree)
-VPATH := $(srctree):$(KBUILD_EXTMOD)
+VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
export srctree objtree VPATH TOPDIR
--
cgit v1.2.1
From c3f9da90b6e63c968070aa72057fe15356b3f7b5 Mon Sep 17 00:00:00 2001
From: Jan Beulich <jbeulich@novell.com>
Date: Wed, 22 Feb 2006 13:29:04 +0100
Subject: kbuild: version.h should depend on .kernelrelease
Rebuilding a previously built tree while using make's -j options from time to
time results in the version.h check running at the same time as the updating
of .kernelrelease, resulting in UTS_RELEASE remaining an empty string (and as
a side effect causing the entire kernel to be rebuilt).
Signed-Off-By: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'Makefile')
diff --git a/Makefile b/Makefile
index 7a95f4f8ef14..ce2bfbdeb96c 100644
--- a/Makefile
+++ b/Makefile
@@ -852,7 +852,7 @@ define filechk_version.h
)
endef
-include/linux/version.h: $(srctree)/Makefile .config FORCE
+include/linux/version.h: $(srctree)/Makefile .config .kernelrelease FORCE
$(call filechk,version.h)
# ---------------------------------------------------------------------------
--
cgit v1.2.1
From f6ecebd6592ea70e9450ec70efb24220dd961ebc Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@mars.ravnborg.org>
Date: Sun, 5 Mar 2006 12:10:58 +0100
Subject: kbuild: fix make dir/file.xx when asm symlink is missing
Added a dependency so we do full preparation before trying to build single
file targets. This fixes a case where Andrew Morton did:
make kernel/sched.o
rm include/asm
make kernel/sched.o -> splat
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
Makefile | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
(limited to 'Makefile')
diff --git a/Makefile b/Makefile
index ce2bfbdeb96c..12c8d7147773 100644
--- a/Makefile
+++ b/Makefile
@@ -1289,17 +1289,17 @@ kernelversion:
# ---------------------------------------------------------------------------
# The directory part is taken from first prerequisite, so this
# works even with external modules
-%.s: %.c scripts FORCE
+%.s: %.c prepare scripts FORCE
$(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@)
-%.i: %.c scripts FORCE
+%.i: %.c prepare scripts FORCE
$(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@)
-%.o: %.c scripts FORCE
+%.o: %.c prepare scripts FORCE
$(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@)
-%.lst: %.c scripts FORCE
+%.lst: %.c prepare scripts FORCE
$(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@)
-%.s: %.S scripts FORCE
+%.s: %.S prepare scripts FORCE
$(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@)
-%.o: %.S scripts FORCE
+%.o: %.S prepare scripts FORCE
$(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@)
# For external modules we shall include any directory of the target,
--
cgit v1.2.1
From 4f1933620f57145212cdbb1ac6ce099eeeb21c5a Mon Sep 17 00:00:00 2001
From: Paul Smith <psmith@gnu.org>
Date: Sun, 5 Mar 2006 17:14:10 -0500
Subject: kbuild: change kbuild to not rely on incorrect GNU make behavior
The kbuild system takes advantage of an incorrect behavior in GNU make.
Once this behavior is fixed, all files in the kernel rebuild every time,
even if nothing has changed. This patch ensures kbuild works with both
the incorrect and correct behaviors of GNU make.
For more details on the incorrect behavior, see:
http://lists.gnu.org/archive/html/bug-make/2006-03/msg00003.html
Changes in this patch:
- Keep all targets that are to be marked .PHONY in a variable, PHONY.
- Add .PHONY: $(PHONY) to mark them properly.
- Remove any $(PHONY) files from the $? list when determining whether
targets are up-to-date or not.
Signed-off-by: Paul Smith <psmith@gnu.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
Makefile | 64 +++++++++++++++++++++++++++++++++++-----------------------------
1 file changed, 35 insertions(+), 29 deletions(-)
(limited to 'Makefile')
diff --git a/Makefile b/Makefile
index 12c8d7147773..a59c1e2d0c2e 100644
--- a/Makefile
+++ b/Makefile
@@ -95,7 +95,7 @@ ifdef O
endif
# That's our default target when none is given on the command line
-.PHONY: _all
+PHONY := _all
_all:
ifneq ($(KBUILD_OUTPUT),)
@@ -106,7 +106,7 @@ KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)
$(if $(KBUILD_OUTPUT),, \
$(error output directory "$(saved-output)" does not exist))
-.PHONY: $(MAKECMDGOALS)
+PHONY += $(MAKECMDGOALS)
$(filter-out _all,$(MAKECMDGOALS)) _all:
$(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
@@ -123,7 +123,7 @@ ifeq ($(skip-makefile),)
# If building an external module we do not care about the all: rule
# but instead _all depend on modules
-.PHONY: all
+PHONY += all
ifeq ($(KBUILD_EXTMOD),)
_all: all
else
@@ -337,14 +337,14 @@ export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exc
# Rules shared between *config targets and build targets
# Basic helpers built in scripts/
-.PHONY: scripts_basic
+PHONY += scripts_basic
scripts_basic:
$(Q)$(MAKE) $(build)=scripts/basic
# To avoid any implicit rule to kick in, define an empty command.
scripts/basic/%: scripts_basic ;
-.PHONY: outputmakefile
+PHONY += outputmakefile
# outputmakefile generate a Makefile to be placed in output directory, if
# using a seperate output directory. This allows convinient use
# of make in output directory
@@ -420,7 +420,7 @@ ifeq ($(KBUILD_EXTMOD),)
# Additional helpers built in scripts/
# Carefully list dependencies so we do not try to build scripts twice
# in parrallel
-.PHONY: scripts
+PHONY += scripts
scripts: scripts_basic include/config/MARKER
$(Q)$(MAKE) $(build)=$(@)
@@ -720,7 +720,7 @@ $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ;
# make menuconfig etc.
# Error messages still appears in the original language
-.PHONY: $(vmlinux-dirs)
+PHONY += $(vmlinux-dirs)
$(vmlinux-dirs): prepare scripts
$(Q)$(MAKE) $(build)=$@
@@ -773,10 +773,10 @@ kernelrelease = $(KERNELVERSION)$(localver-full)
# version.h and scripts_basic is processed / created.
# Listed in dependency order
-.PHONY: prepare archprepare prepare0 prepare1 prepare2 prepare3
+PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
# prepare-all is deprecated, use prepare as valid replacement
-.PHONY: prepare-all
+PHONY += prepare-all
# prepare3 is used to check if we are building in a separate output directory,
# and if so do:
@@ -857,7 +857,7 @@ include/linux/version.h: $(srctree)/Makefile .config .kernelrelease FORCE
# ---------------------------------------------------------------------------
-.PHONY: depend dep
+PHONY += depend dep
depend dep:
@echo '*** Warning: make $@ is unnecessary now.'
@@ -872,21 +872,21 @@ all: modules
# Build modules
-.PHONY: modules
+PHONY += modules
modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux)
@echo ' Building modules, stage 2.';
$(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost
# Target to prepare building external modules
-.PHONY: modules_prepare
+PHONY += modules_prepare
modules_prepare: prepare scripts
# Target to install modules
-.PHONY: modules_install
+PHONY += modules_install
modules_install: _modinst_ _modinst_post
-.PHONY: _modinst_
+PHONY += _modinst_
_modinst_:
@if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \
echo "Warning: you may need to install module-init-tools"; \
@@ -913,7 +913,7 @@ depmod_opts :=
else
depmod_opts := -b $(INSTALL_MOD_PATH) -r
endif
-.PHONY: _modinst_post
+PHONY += _modinst_post
_modinst_post: _modinst_
if [ -r System.map -a -x $(DEPMOD) ]; then $(DEPMOD) -ae -F System.map $(depmod_opts) $(KERNELRELEASE); fi
@@ -956,7 +956,7 @@ clean: rm-dirs := $(CLEAN_DIRS)
clean: rm-files := $(CLEAN_FILES)
clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs))
-.PHONY: $(clean-dirs) clean archclean
+PHONY += $(clean-dirs) clean archclean
$(clean-dirs):
$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
@@ -974,7 +974,7 @@ mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts)
-.PHONY: $(mrproper-dirs) mrproper archmrproper
+PHONY += $(mrproper-dirs) mrproper archmrproper
$(mrproper-dirs):
$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
@@ -984,7 +984,7 @@ mrproper: clean archmrproper $(mrproper-dirs)
# distclean
#
-.PHONY: distclean
+PHONY += distclean
distclean: mrproper
@find $(srctree) $(RCS_FIND_IGNORE) \
@@ -1000,7 +1000,7 @@ distclean: mrproper
# rpm target kept for backward compatibility
package-dir := $(srctree)/scripts/package
-.PHONY: %-pkg rpm
+PHONY += %-pkg rpm
%pkg: FORCE
$(Q)$(MAKE) -f $(package-dir)/Makefile $@
@@ -1092,12 +1092,12 @@ else # KBUILD_EXTMOD
# We are always building modules
KBUILD_MODULES := 1
-.PHONY: crmodverdir
+PHONY += crmodverdir
crmodverdir:
$(Q)rm -rf $(MODVERDIR)
$(Q)mkdir -p $(MODVERDIR)
-.PHONY: $(objtree)/Module.symvers
+PHONY += $(objtree)/Module.symvers
$(objtree)/Module.symvers:
@test -e $(objtree)/Module.symvers || ( \
echo; \
@@ -1106,7 +1106,7 @@ $(objtree)/Module.symvers:
echo )
module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD))
-.PHONY: $(module-dirs) modules
+PHONY += $(module-dirs) modules
$(module-dirs): crmodverdir $(objtree)/Module.symvers
$(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
@@ -1114,11 +1114,11 @@ modules: $(module-dirs)
@echo ' Building modules, stage 2.';
$(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost
-.PHONY: modules_install
+PHONY += modules_install
modules_install: _emodinst_ _emodinst_post
-install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra)
-.PHONY: _emodinst_
+install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra)
+PHONY += _emodinst_
_emodinst_:
$(Q)rm -rf $(MODLIB)/$(install-dir)
$(Q)mkdir -p $(MODLIB)/$(install-dir)
@@ -1133,13 +1133,13 @@ quiet_cmd_depmod = DEPMOD $(KERNELRELEASE)
$(KERNELRELEASE); \
fi
-.PHONY: _emodinst_post
+PHONY += _emodinst_post
_emodinst_post: _emodinst_
$(call cmd,depmod)
clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD))
-.PHONY: $(clean-dirs) clean
+PHONY += $(clean-dirs) clean
$(clean-dirs):
$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
@@ -1161,7 +1161,7 @@ help:
@echo ''
# Dummies...
-.PHONY: prepare scripts
+PHONY += prepare scripts
prepare: ;
scripts: ;
endif # KBUILD_EXTMOD
@@ -1274,7 +1274,7 @@ namespacecheck:
endif #ifeq ($(config-targets),1)
endif #ifeq ($(mixed-targets),1)
-.PHONY: checkstack
+PHONY += checkstack
checkstack:
$(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \
$(PERL) $(src)/scripts/checkstack.pl $(ARCH)
@@ -1357,4 +1357,10 @@ clean := -f $(if $(KBUILD_SRC),$(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)
--
cgit v1.2.1
From 0131705d589e2341dbc5e8946a60f83d8c1773dc Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@mars.ravnborg.org>
Date: Wed, 8 Mar 2006 18:39:05 +0100
Subject: kbuild: replace PHONY with FORCE
.PHONY: does not take patterns so use FORCE to achive same effect.
Thanks to "Paul D. Smith" <psmith@gnu.org> for noticing this.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
Makefile | 2 --
1 file changed, 2 deletions(-)
(limited to 'Makefile')
diff --git a/Makefile b/Makefile
index a59c1e2d0c2e..eca667b4098e 100644
--- a/Makefile
+++ b/Makefile
@@ -1000,8 +1000,6 @@ distclean: mrproper
# rpm target kept for backward compatibility
package-dir := $(srctree)/scripts/package
-PHONY += %-pkg rpm
-
%pkg: FORCE
$(Q)$(MAKE) -f $(package-dir)/Makefile $@
rpm: FORCE
--
cgit v1.2.1
From 8cab77a2f851363e35089b9720373b964f64550e Mon Sep 17 00:00:00 2001
From: Adrian Bunk <bunk@stusta.de>
Date: Tue, 7 Mar 2006 23:58:36 -0800
Subject: Kconfig: remove the CONFIG_CC_ALIGN_* options
I don't see any use case for the CONFIG_CC_ALIGN_* options:
- they are only available if EMBEDDED
- people using EMBEDDED will most likely also enable
CC_OPTIMIZE_FOR_SIZE
- the default for -Os is to disable alignment
In case someone is doing performance comparisons and discovers that the
default settings gcc chooses aren't good, the only sane thing is to discuss
whether it makes sense to change this, not through offering options to change
this locally.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
Makefile | 7 -------
1 file changed, 7 deletions(-)
(limited to 'Makefile')
diff --git a/Makefile b/Makefile
index eca667b4098e..3dbaac6d521d 100644
--- a/Makefile
+++ b/Makefile
@@ -472,13 +472,6 @@ else
CFLAGS += -O2
endif
-#Add align options if CONFIG_CC_* is not equal to 0
-add-align = $(if $(filter-out 0,$($(1))),$(cc-option-align)$(2)=$($(1)))
-CFLAGS += $(call add-align,CONFIG_CC_ALIGN_FUNCTIONS,-functions)
-CFLAGS += $(call add-align,CONFIG_CC_ALIGN_LABELS,-labels)
-CFLAGS += $(call add-align,CONFIG_CC_ALIGN_LOOPS,-loops)
-CFLAGS += $(call add-align,CONFIG_CC_ALIGN_JUMPS,-jumps)
-
ifdef CONFIG_FRAME_POINTER
CFLAGS += -fno-omit-frame-pointer $(call cc-option,-fno-optimize-sibling-calls,)
else
--
cgit v1.2.1
From 6c2133e11b422b7379b5a660c639f7d53d18ca3b Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@mars.ravnborg.org>
Date: Tue, 21 Mar 2006 07:22:35 +0100
Subject: kbuild: fix make help & make *pkg
FORCE was not defined => error.
Use kbuild infrastructure to call down to the relevant
Makefile. This enables us to use the FORCE definition from kbuild.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
Makefile | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'Makefile')
diff --git a/Makefile b/Makefile
index 3dbaac6d521d..0c223dfd3020 100644
--- a/Makefile
+++ b/Makefile
@@ -994,9 +994,9 @@ distclean: mrproper
package-dir := $(srctree)/scripts/package
%pkg: FORCE
- $(Q)$(MAKE) -f $(package-dir)/Makefile $@
+ $(Q)$(MAKE) $(build)=$(package-dir) $@
rpm: FORCE
- $(Q)$(MAKE) -f $(package-dir)/Makefile $@
+ $(Q)$(MAKE) $(build)=$(package-dir) $@
# Brief documentation of the typical targets used
@@ -1034,7 +1034,7 @@ help:
@echo ' namespacecheck - Name space analysis on compiled kernel'
@echo ''
@echo 'Kernel packaging:'
- @$(MAKE) -f $(package-dir)/Makefile help
+ @$(MAKE) $(build)=$(package-dir) help
@echo ''
@echo 'Documentation targets:'
@$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp
--
cgit v1.2.1
From eae0f536f640bb95f2ad437a57c40c7d5683d1ac Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@mars.ravnborg.org>
Date: Tue, 21 Mar 2006 07:28:24 +0100
Subject: kbuild: remove obsoleted scripts/reference_* files
The checks performed by scripts/reference_* has been moved to modpost.
Remove the files and their reference in top-level Makefile.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
Makefile | 6 ------
1 file changed, 6 deletions(-)
(limited to 'Makefile')
diff --git a/Makefile b/Makefile
index 0c223dfd3020..6df94f9168c5 100644
--- a/Makefile
+++ b/Makefile
@@ -1028,8 +1028,6 @@ help:
@echo ' kernelversion - Output the version stored in Makefile'
@echo ''
@echo 'Static analysers'
- @echo ' buildcheck - List dangling references to vmlinux discarded sections'
- @echo ' and init sections from non-init sections'
@echo ' checkstack - Generate a list of stack hogs'
@echo ' namespacecheck - Name space analysis on compiled kernel'
@echo ''
@@ -1255,10 +1253,6 @@ versioncheck:
-name '*.[hcS]' -type f -print | sort \
| xargs $(PERL) -w scripts/checkversion.pl
-buildcheck:
- $(PERL) $(srctree)/scripts/reference_discarded.pl
- $(PERL) $(srctree)/scripts/reference_init.pl
-
namespacecheck:
$(PERL) $(srctree)/scripts/namespace.pl
--
cgit v1.2.1