Kbuild updates for v4.14
- 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 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJZupWLAAoJED2LAQed4NsGVEEQAItJ0y1uxDr0cjJNE46N6p6+ EMCWKWC2H0XR9oFRY1y5utYWIwRauIaESgGg1qMU6Lbg5qZamggpNrYVH207tCz1 gNkU8wwc2SXpxJy2eG2asxY9L2mL0a5fFFOgxIxoz+hCTgr4Yk1IGnTH9+GPQKtW thduXxTvcB4/oNTOgUHNj/7j9ydn7ETTOjsCoaEwBZqtBaaEBj20h6EOhgX+ouMd 5P9YoCbfk28KHKlnMd8sNHV5SLKb94wCwoM/QIOLl42rwIAc81dUgOmaMGeflXF9 zBH1exi4ID9SyQyuMZemJNe0bD6YR2qG0Sf1t2eDnhxmcav7Vwk+WV7Pdpr8UWw8 Lot9yPJQA43kfYj6pfCJFXzWEduNT48zGGBJb30WyGkBkidNNGkujdSeI36swEQD fPV9tHPk48OSNPqJWZXehezBqN9U5Sa1M9dk5TNA69mzdZgNp052flxywBQ/SGTO +h17SREP9Mm6CQ9ApfHaOlMr40/mpCCDq+p8pfem5ZtnBby9k4uNp2P9hAMTJdw8 5AOdwB0MdzvMQgF5UO0kklk6HGUZTAGHi91k5k3e+DPydt9+2ntZFZoVwVYaD756 E55KKrQZqSO758gnN9Wbr8ihgOhNI3ZA320nCjfwQdnUqQ496KAkLpgVALF8pEVi /xIBawfQNj9BlDc3Y3jo =Tam1 -----END PGP SIGNATURE----- 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 $(shell cd ... && /bin/pwd)
This commit is contained in:
Linus Torvalds
commit
a2bc8dea9e
6 changed files with 29 additions and 30 deletions
12
Makefile
12
Makefile
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@ -130,8 +130,8 @@ endif
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ifneq ($(KBUILD_OUTPUT),)
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# check that the output directory actually exists
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saved-output := $(KBUILD_OUTPUT)
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KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
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&& /bin/pwd)
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$(shell [ -d $(KBUILD_OUTPUT) ] || mkdir -p $(KBUILD_OUTPUT))
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KBUILD_OUTPUT := $(realpath $(KBUILD_OUTPUT))
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$(if $(KBUILD_OUTPUT),, \
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$(error failed to create output directory "$(saved-output)"))
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@ -978,7 +978,7 @@ ifdef CONFIG_HEADERS_CHECK
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$(Q)$(MAKE) -f $(srctree)/Makefile headers_check
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endif
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ifdef CONFIG_GDB_SCRIPTS
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$(Q)ln -fsn `cd $(srctree) && /bin/pwd`/scripts/gdb/vmlinux-gdb.py
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$(Q)ln -fsn $(abspath $(srctree)/scripts/gdb/vmlinux-gdb.py)
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endif
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ifdef CONFIG_TRIM_UNUSED_KSYMS
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$(Q)$(CONFIG_SHELL) $(srctree)/scripts/adjust_autoksyms.sh \
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@ -1238,7 +1238,7 @@ _modinst_:
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@rm -rf $(MODLIB)/kernel
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@rm -f $(MODLIB)/source
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@mkdir -p $(MODLIB)/kernel
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@ln -s `cd $(srctree) && /bin/pwd` $(MODLIB)/source
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@ln -s $(abspath $(srctree)) $(MODLIB)/source
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@if [ ! $(objtree) -ef $(MODLIB)/build ]; then \
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rm -f $(MODLIB)/build ; \
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ln -s $(CURDIR) $(MODLIB)/build ; \
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@ -1630,11 +1630,11 @@ image_name:
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# Clear a bunch of variables before executing the submake
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tools/: FORCE
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$(Q)mkdir -p $(objtree)/tools
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$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(shell cd $(objtree) && /bin/pwd) subdir=tools -C $(src)/tools/
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$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(src)/tools/
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tools/%: FORCE
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$(Q)mkdir -p $(objtree)/tools
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$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(shell cd $(objtree) && /bin/pwd) subdir=tools -C $(src)/tools/ $*
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$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(src)/tools/ $*
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# Single targets
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# ---------------------------------------------------------------------------
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@ -37,6 +37,7 @@ warning-2 += $(call cc-option, -Wlogical-op)
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warning-2 += $(call cc-option, -Wmissing-field-initializers)
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warning-2 += $(call cc-option, -Wsign-compare)
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warning-2 += $(call cc-option, -Wmaybe-uninitialized)
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warning-2 += $(call cc-option, -Wunused-macros)
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warning-3 := -Wbad-function-cast
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warning-3 += -Wcast-qual
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@ -1,6 +1,6 @@
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always := gdb-scripts
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SRCTREE := $(shell cd $(srctree) && /bin/pwd)
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SRCTREE := $(abspath $(srctree))
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$(obj)/gdb-scripts:
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ifneq ($(KBUILD_SRC),)
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@ -24,20 +24,19 @@ tarball="${objtree}/linux-${KERNELRELEASE}-${ARCH}.tar"
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#
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case "${1}" in
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tar-pkg)
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compress="cat"
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file_ext=""
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opts=
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;;
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targz-pkg)
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compress="gzip"
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file_ext=".gz"
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opts=--gzip
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tarball=${tarball}.gz
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;;
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tarbz2-pkg)
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compress="bzip2"
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file_ext=".bz2"
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opts=--bzip2
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tarball=${tarball}.bz2
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;;
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tarxz-pkg)
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compress="xz"
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file_ext=".xz"
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opts=--xz
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tarball=${tarball}.xz
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;;
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*)
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echo "Unknown tarball target \"${1}\" requested, please add it to ${0}." >&2
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@ -51,13 +50,14 @@ esac
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#
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rm -rf -- "${tmpdir}"
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mkdir -p -- "${tmpdir}/boot"
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dirs=boot
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#
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# Try to install modules
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#
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if grep -q '^CONFIG_MODULES=y' "${objtree}/.config"; then
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if grep -q '^CONFIG_MODULES=y' "${KCONFIG_CONFIG}"; then
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make ARCH="${ARCH}" O="${objtree}" KBUILD_SRC= INSTALL_MOD_PATH="${tmpdir}" modules_install
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dirs="$dirs lib"
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fi
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@ -65,7 +65,7 @@ fi
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# Install basic kernel files
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#
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cp -v -- "${objtree}/System.map" "${tmpdir}/boot/System.map-${KERNELRELEASE}"
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cp -v -- "${objtree}/.config" "${tmpdir}/boot/config-${KERNELRELEASE}"
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cp -v -- "${KCONFIG_CONFIG}" "${tmpdir}/boot/config-${KERNELRELEASE}"
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cp -v -- "${objtree}/vmlinux" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
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@ -124,14 +124,12 @@ esac
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#
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# Create the tarball
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#
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(
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opts=
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if tar --owner=root --group=root --help >/dev/null 2>&1; then
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opts="--owner=root --group=root"
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fi
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tar cf - -C "$tmpdir" boot/ lib/ $opts | ${compress} > "${tarball}${file_ext}"
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)
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if tar --owner=root --group=root --help >/dev/null 2>&1; then
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opts="$opts --owner=root --group=root"
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fi
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echo "Tarball successfully created in ${tarball}${file_ext}"
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tar cf $tarball -C $tmpdir $opts $dirs
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echo "Tarball successfully created in $tarball"
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exit 0
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@ -26,7 +26,7 @@ endif
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ifneq ($(OUTPUT),)
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# check that the output directory actually exists
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OUTDIR := $(shell cd $(OUTPUT) && /bin/pwd)
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OUTDIR := $(realpath $(OUTPUT))
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$(if $(OUTDIR),, $(error output directory "$(OUTPUT)" does not exist))
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endif
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@ -1,7 +1,7 @@
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ifneq ($(O),)
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ifeq ($(origin O), command line)
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dummy := $(if $(shell test -d $(O) || echo $(O)),$(error O=$(O) does not exist),)
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ABSOLUTE_O := $(shell cd $(O) ; pwd)
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ABSOLUTE_O := $(realpath $(O))
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dummy := $(if $(ABSOLUTE_O),,$(error O=$(O) does not exist))
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OUTPUT := $(ABSOLUTE_O)/$(if $(subdir),$(subdir)/)
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COMMAND_O := O=$(ABSOLUTE_O)
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ifeq ($(objtree),)
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@ -12,7 +12,7 @@ endif
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# check that the output directory actually exists
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ifneq ($(OUTPUT),)
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OUTDIR := $(shell cd $(OUTPUT) && /bin/pwd)
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OUTDIR := $(realpath $(OUTPUT))
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$(if $(OUTDIR),, $(error output directory "$(OUTPUT)" does not exist))
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endif
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