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authorLinus Torvalds <torvalds@linux-foundation.org>2017-09-14 13:46:33 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-09-14 13:46:33 -0700
commita2bc8dea9e96872e16248884367ad0013e040089 (patch)
tree6da6f9d4be2e201934f9e88380709628b5176850
parentdff4d1f6fe85627b7ce8e4c5291d8621a1995605 (diff)
parent77780f799e66cd261746a281dbbef1ee0c6997cd (diff)
Merge tag 'kbuild-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada: - Use Make-builtin $(abspath ...) helper to get absolute path - Add W=2 extra warning option to detect unused macros - Use more KCONFIG_CONFIG instead hard-coded .config - Fix bugs of tar*-pkg targets * tag 'kbuild-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kbuild: buildtar: do not print successful message if tar returns error kbuild: buildtar: fix tar error when CONFIG_MODULES is disabled kbuild: Use KCONFIG_CONFIG in buildtar Kbuild: enable -Wunused-macros warning for "make W=2" kbuild: use $(abspath ...) instead of $(shell cd ... && /bin/pwd)
-rw-r--r--Makefile12
-rw-r--r--scripts/Makefile.extrawarn1
-rw-r--r--scripts/gdb/linux/Makefile2
-rwxr-xr-xscripts/package/buildtar36
-rw-r--r--tools/power/cpupower/Makefile2
-rw-r--r--tools/scripts/Makefile.include6
6 files changed, 29 insertions, 30 deletions
diff --git a/Makefile b/Makefile
index ab067d51ddf1..6585339586a6 100644
--- a/Makefile
+++ b/Makefile
@@ -130,8 +130,8 @@ endif
ifneq ($(KBUILD_OUTPUT),)
# check that the output directory actually exists
saved-output := $(KBUILD_OUTPUT)
-KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
- && /bin/pwd)
+$(shell [ -d $(KBUILD_OUTPUT) ] || mkdir -p $(KBUILD_OUTPUT))
+KBUILD_OUTPUT := $(realpath $(KBUILD_OUTPUT))
$(if $(KBUILD_OUTPUT),, \
$(error failed to create output directory "$(saved-output)"))
@@ -978,7 +978,7 @@ ifdef CONFIG_HEADERS_CHECK
$(Q)$(MAKE) -f $(srctree)/Makefile headers_check
endif
ifdef CONFIG_GDB_SCRIPTS
- $(Q)ln -fsn `cd $(srctree) && /bin/pwd`/scripts/gdb/vmlinux-gdb.py
+ $(Q)ln -fsn $(abspath $(srctree)/scripts/gdb/vmlinux-gdb.py)
endif
ifdef CONFIG_TRIM_UNUSED_KSYMS
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/adjust_autoksyms.sh \
@@ -1238,7 +1238,7 @@ _modinst_:
@rm -rf $(MODLIB)/kernel
@rm -f $(MODLIB)/source
@mkdir -p $(MODLIB)/kernel
- @ln -s `cd $(srctree) && /bin/pwd` $(MODLIB)/source
+ @ln -s $(abspath $(srctree)) $(MODLIB)/source
@if [ ! $(objtree) -ef $(MODLIB)/build ]; then \
rm -f $(MODLIB)/build ; \
ln -s $(CURDIR) $(MODLIB)/build ; \
@@ -1630,11 +1630,11 @@ image_name:
# Clear a bunch of variables before executing the submake
tools/: FORCE
$(Q)mkdir -p $(objtree)/tools
- $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(shell cd $(objtree) && /bin/pwd) subdir=tools -C $(src)/tools/
+ $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(src)/tools/
tools/%: FORCE
$(Q)mkdir -p $(objtree)/tools
- $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(shell cd $(objtree) && /bin/pwd) subdir=tools -C $(src)/tools/ $*
+ $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(src)/tools/ $*
# Single targets
# ---------------------------------------------------------------------------
diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn
index fb3522fd8702..ae8a1357d01d 100644
--- a/scripts/Makefile.extrawarn
+++ b/scripts/Makefile.extrawarn
@@ -37,6 +37,7 @@ warning-2 += $(call cc-option, -Wlogical-op)
warning-2 += $(call cc-option, -Wmissing-field-initializers)
warning-2 += $(call cc-option, -Wsign-compare)
warning-2 += $(call cc-option, -Wmaybe-uninitialized)
+warning-2 += $(call cc-option, -Wunused-macros)
warning-3 := -Wbad-function-cast
warning-3 += -Wcast-qual
diff --git a/scripts/gdb/linux/Makefile b/scripts/gdb/linux/Makefile
index 8b00031f5349..ab3cfe727a4e 100644
--- a/scripts/gdb/linux/Makefile
+++ b/scripts/gdb/linux/Makefile
@@ -1,6 +1,6 @@
always := gdb-scripts
-SRCTREE := $(shell cd $(srctree) && /bin/pwd)
+SRCTREE := $(abspath $(srctree))
$(obj)/gdb-scripts:
ifneq ($(KBUILD_SRC),)
diff --git a/scripts/package/buildtar b/scripts/package/buildtar
index e046bff33589..51f947118256 100755
--- a/scripts/package/buildtar
+++ b/scripts/package/buildtar
@@ -24,20 +24,19 @@ tarball="${objtree}/linux-${KERNELRELEASE}-${ARCH}.tar"
#
case "${1}" in
tar-pkg)
- compress="cat"
- file_ext=""
+ opts=
;;
targz-pkg)
- compress="gzip"
- file_ext=".gz"
+ opts=--gzip
+ tarball=${tarball}.gz
;;
tarbz2-pkg)
- compress="bzip2"
- file_ext=".bz2"
+ opts=--bzip2
+ tarball=${tarball}.bz2
;;
tarxz-pkg)
- compress="xz"
- file_ext=".xz"
+ opts=--xz
+ tarball=${tarball}.xz
;;
*)
echo "Unknown tarball target \"${1}\" requested, please add it to ${0}." >&2
@@ -51,13 +50,14 @@ esac
#
rm -rf -- "${tmpdir}"
mkdir -p -- "${tmpdir}/boot"
-
+dirs=boot
#
# Try to install modules
#
-if grep -q '^CONFIG_MODULES=y' "${objtree}/.config"; then
+if grep -q '^CONFIG_MODULES=y' "${KCONFIG_CONFIG}"; then
make ARCH="${ARCH}" O="${objtree}" KBUILD_SRC= INSTALL_MOD_PATH="${tmpdir}" modules_install
+ dirs="$dirs lib"
fi
@@ -65,7 +65,7 @@ fi
# Install basic kernel files
#
cp -v -- "${objtree}/System.map" "${tmpdir}/boot/System.map-${KERNELRELEASE}"
-cp -v -- "${objtree}/.config" "${tmpdir}/boot/config-${KERNELRELEASE}"
+cp -v -- "${KCONFIG_CONFIG}" "${tmpdir}/boot/config-${KERNELRELEASE}"
cp -v -- "${objtree}/vmlinux" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
@@ -124,14 +124,12 @@ esac
#
# Create the tarball
#
-(
- opts=
- if tar --owner=root --group=root --help >/dev/null 2>&1; then
- opts="--owner=root --group=root"
- fi
- tar cf - -C "$tmpdir" boot/ lib/ $opts | ${compress} > "${tarball}${file_ext}"
-)
+if tar --owner=root --group=root --help >/dev/null 2>&1; then
+ opts="$opts --owner=root --group=root"
+fi
+
+tar cf $tarball -C $tmpdir $opts $dirs
-echo "Tarball successfully created in ${tarball}${file_ext}"
+echo "Tarball successfully created in $tarball"
exit 0
diff --git a/tools/power/cpupower/Makefile b/tools/power/cpupower/Makefile
index d6e1c02ddcfe..4c5a481a850c 100644
--- a/tools/power/cpupower/Makefile
+++ b/tools/power/cpupower/Makefile
@@ -26,7 +26,7 @@ endif
ifneq ($(OUTPUT),)
# check that the output directory actually exists
-OUTDIR := $(shell cd $(OUTPUT) && /bin/pwd)
+OUTDIR := $(realpath $(OUTPUT))
$(if $(OUTDIR),, $(error output directory "$(OUTPUT)" does not exist))
endif
diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include
index 1e8b6116ba3c..9dc8f078a83c 100644
--- a/tools/scripts/Makefile.include
+++ b/tools/scripts/Makefile.include
@@ -1,7 +1,7 @@
ifneq ($(O),)
ifeq ($(origin O), command line)
- dummy := $(if $(shell test -d $(O) || echo $(O)),$(error O=$(O) does not exist),)
- ABSOLUTE_O := $(shell cd $(O) ; pwd)
+ ABSOLUTE_O := $(realpath $(O))
+ dummy := $(if $(ABSOLUTE_O),,$(error O=$(O) does not exist))
OUTPUT := $(ABSOLUTE_O)/$(if $(subdir),$(subdir)/)
COMMAND_O := O=$(ABSOLUTE_O)
ifeq ($(objtree),)
@@ -12,7 +12,7 @@ endif
# check that the output directory actually exists
ifneq ($(OUTPUT),)
-OUTDIR := $(shell cd $(OUTPUT) && /bin/pwd)
+OUTDIR := $(realpath $(OUTPUT))
$(if $(OUTDIR),, $(error output directory "$(OUTPUT)" does not exist))
endif