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Merge tag 'kbuild-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

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Pull Kbuild updates from Masahiro Yamada:

 - do not generate unneeded top-level built-in.a

 - let git ignore O= directory entirely

 - optimize scripts/kallsyms slightly

 - exclude DWARF info from *.s regardless of config options

 - fix GCC toolchain search path for Clang to prepare ld.lld support

 - do not generate modules.order when CONFIG_MODULES is disabled

 - simplify single target rules and remove VPATH for external module
   build

 - allow to add optional flags to dpkg-buildpackage when building
   deb-pkg

 - move some compiler option tests from Makefile to Kconfig

 - various Makefile cleanups

* tag 'kbuild-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (40 commits)
  kbuild: remove scripts/basic/% build target
  kbuild: use -Werror=implicit-... instead of -Werror-implicit-...
  kbuild: clean up scripts/gcc-version.sh
  kbuild: remove cc-version macro
  kbuild: update comment block of scripts/clang-version.sh
  kbuild: remove commented-out INITRD_COMPRESS
  kbuild: move -gsplit-dwarf, -gdwarf-4 option tests to Kconfig
  kbuild: [bin]deb-pkg: add DPKG_FLAGS variable
  kbuild: move ".config not found!" message from Kconfig to Makefile
  kbuild: invoke syncconfig if include/config/auto.conf.cmd is missing
  kbuild: simplify single target rules
  kbuild: remove empty rules for makefiles
  kbuild: make -r/-R effective in top Makefile for old Make versions
  kbuild: move tools_silent to a more relevant place
  kbuild: compute false-positive -Wmaybe-uninitialized cases in Kconfig
  kbuild: refactor cc-cross-prefix implementation
  kbuild: hardcode genksyms path and remove GENKSYMS variable
  scripts/gdb: refactor rules for symlink creation
  kbuild: create symlink to vmlinux-gdb.py in scripts_gdb target
  scripts/gdb: do not descend into scripts/gdb from scripts
  ...
This commit is contained in:
Linus Torvalds
2019-03-10 17:48:21 -07:00
parent 5af7f11588 9250d20e9e
commit ffd602eb46
33 changed files with 262 additions and 362 deletions
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25
scripts/gdb/linux/Makefile
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@@ -1,24 +1,25 @@
# SPDX-License-Identifier: GPL-2.0
always := gdb-scripts
SRCTREE := $(abspath $(srctree))
$(obj)/gdb-scripts:
ifneq ($(KBUILD_SRC),)
$(Q)ln -fsn $(SRCTREE)/$(obj)/*.py $(objtree)/$(obj)
symlinks := $(patsubst $(srctree)/$(src)/%,%,$(wildcard $(srctree)/$(src)/*.py))
quiet_cmd_symlink = SYMLINK $@
cmd_symlink = ln -fsn $(patsubst $(obj)/%,$(abspath $(srctree))/$(src)/%,$@) $@
extra-y += $(symlinks)
$(addprefix $(obj)/, $(symlinks)): FORCE
$(call if_changed,symlink)
endif
@:
quiet_cmd_gen_constants_py = GEN $@
cmd_gen_constants_py = \
$(CPP) -E -x c -P $(c_flags) $< > $@ ;\
sed -i '1,/<!-- end-c-headers -->/d;' $@
targets += constants.py
$(obj)/constants.py: $(SRCTREE)/$(obj)/constants.py.in FORCE
extra-y += constants.py
$(obj)/constants.py: $(src)/constants.py.in FORCE
$(call if_changed_dep,gen_constants_py)
build_constants_py: $(obj)/constants.py
@:
clean-files := *.pyc *.pyo $(if $(KBUILD_SRC),*.py) $(obj)/constants.py
clean-files := *.pyc *.pyo