mirror of
https://github.com/brain-hackers/linux-brain.git
synced 2024-06-09 23:36:23 +09:00
39ceda5ce1
- remove headers_{install,check}_all targets
- remove unreasonable 'depends on !UML' from CONFIG_SAMPLES
- re-implement 'make headers_install' more cleanly
- add new header-test-y syntax to compile-test headers
- compile-test exported headers to ensure they are compilable in
user-space
- compile-test headers under include/ to ensure they are self-contained
- remove -Waggregate-return, -Wno-uninitialized, -Wno-unused-value flags
- add -Werror=unknown-warning-option for Clang
- add 128-bit built-in types support to genksyms
- fix missed rebuild of modules.builtin
- propagate 'No space left on device' error in fixdep to Make
- allow Clang to use its integrated assembler
- improve some coccinelle scripts
- add a new flag KBUILD_ABS_SRCTREE to request Kbuild to use absolute
path for $(srctree).
- do not ignore errors when compression utility is missing
- misc cleanups
-----BEGIN PGP SIGNATURE-----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=E2Rz
-----END PGP SIGNATURE-----
Merge tag 'kbuild-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- remove headers_{install,check}_all targets
- remove unreasonable 'depends on !UML' from CONFIG_SAMPLES
- re-implement 'make headers_install' more cleanly
- add new header-test-y syntax to compile-test headers
- compile-test exported headers to ensure they are compilable in
user-space
- compile-test headers under include/ to ensure they are self-contained
- remove -Waggregate-return, -Wno-uninitialized, -Wno-unused-value
flags
- add -Werror=unknown-warning-option for Clang
- add 128-bit built-in types support to genksyms
- fix missed rebuild of modules.builtin
- propagate 'No space left on device' error in fixdep to Make
- allow Clang to use its integrated assembler
- improve some coccinelle scripts
- add a new flag KBUILD_ABS_SRCTREE to request Kbuild to use absolute
path for $(srctree).
- do not ignore errors when compression utility is missing
- misc cleanups
* tag 'kbuild-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (49 commits)
kbuild: use -- separater intead of $(filter-out ...) for cc-cross-prefix
kbuild: Inform user to pass ARCH= for make mrproper
kbuild: fix compression errors getting ignored
kbuild: add a flag to force absolute path for srctree
kbuild: replace KBUILD_SRCTREE with boolean building_out_of_srctree
kbuild: remove src and obj from the top Makefile
scripts/tags.sh: remove unused environment variables from comments
scripts/tags.sh: drop SUBARCH support for ARM
kbuild: compile-test kernel headers to ensure they are self-contained
kheaders: include only headers into kheaders_data.tar.xz
kheaders: remove meaningless -R option of 'ls'
kbuild: support header-test-pattern-y
kbuild: do not create wrappers for header-test-y
kbuild: compile-test exported headers to ensure they are self-contained
init/Kconfig: add CONFIG_CC_CAN_LINK
kallsyms: exclude kasan local symbols on s390
kbuild: add more hints about SUBDIRS replacement
coccinelle: api/stream_open: treat all wait_.*() calls as blocking
coccinelle: put_device: Add a cast to an expression for an assignment
coccinelle: put_device: Adjust a message construction
...
165 lines
6.3 KiB
Makefile
165 lines
6.3 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
|
|
# ==========================================================================
|
|
# Building binaries on the host system
|
|
# Binaries are used during the compilation of the kernel, for example
|
|
# to preprocess a data file.
|
|
#
|
|
# Both C and C++ are supported, but preferred language is C for such utilities.
|
|
#
|
|
# Sample syntax (see Documentation/kbuild/makefiles.rst for reference)
|
|
# hostprogs-y := bin2hex
|
|
# Will compile bin2hex.c and create an executable named bin2hex
|
|
#
|
|
# hostprogs-y := lxdialog
|
|
# lxdialog-objs := checklist.o lxdialog.o
|
|
# Will compile lxdialog.c and checklist.c, and then link the executable
|
|
# lxdialog, based on checklist.o and lxdialog.o
|
|
#
|
|
# hostprogs-y := qconf
|
|
# qconf-cxxobjs := qconf.o
|
|
# qconf-objs := menu.o
|
|
# Will compile qconf as a C++ program, and menu as a C program.
|
|
# They are linked as C++ code to the executable qconf
|
|
|
|
__hostprogs := $(sort $(hostprogs-y) $(hostprogs-m))
|
|
host-cshlib := $(sort $(hostlibs-y) $(hostlibs-m))
|
|
host-cxxshlib := $(sort $(hostcxxlibs-y) $(hostcxxlibs-m))
|
|
|
|
# C code
|
|
# Executables compiled from a single .c file
|
|
host-csingle := $(foreach m,$(__hostprogs), \
|
|
$(if $($(m)-objs)$($(m)-cxxobjs),,$(m)))
|
|
|
|
# C executables linked based on several .o files
|
|
host-cmulti := $(foreach m,$(__hostprogs),\
|
|
$(if $($(m)-cxxobjs),,$(if $($(m)-objs),$(m))))
|
|
|
|
# Object (.o) files compiled from .c files
|
|
host-cobjs := $(sort $(foreach m,$(__hostprogs),$($(m)-objs)))
|
|
|
|
# C++ code
|
|
# C++ executables compiled from at least one .cc file
|
|
# and zero or more .c files
|
|
host-cxxmulti := $(foreach m,$(__hostprogs),$(if $($(m)-cxxobjs),$(m)))
|
|
|
|
# C++ Object (.o) files compiled from .cc files
|
|
host-cxxobjs := $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs)))
|
|
|
|
# Object (.o) files used by the shared libaries
|
|
host-cshobjs := $(sort $(foreach m,$(host-cshlib),$($(m:.so=-objs))))
|
|
host-cxxshobjs := $(sort $(foreach m,$(host-cxxshlib),$($(m:.so=-objs))))
|
|
|
|
host-csingle := $(addprefix $(obj)/,$(host-csingle))
|
|
host-cmulti := $(addprefix $(obj)/,$(host-cmulti))
|
|
host-cobjs := $(addprefix $(obj)/,$(host-cobjs))
|
|
host-cxxmulti := $(addprefix $(obj)/,$(host-cxxmulti))
|
|
host-cxxobjs := $(addprefix $(obj)/,$(host-cxxobjs))
|
|
host-cshlib := $(addprefix $(obj)/,$(host-cshlib))
|
|
host-cxxshlib := $(addprefix $(obj)/,$(host-cxxshlib))
|
|
host-cshobjs := $(addprefix $(obj)/,$(host-cshobjs))
|
|
host-cxxshobjs := $(addprefix $(obj)/,$(host-cxxshobjs))
|
|
|
|
#####
|
|
# Handle options to gcc. Support building with separate output directory
|
|
|
|
_hostc_flags = $(KBUILD_HOSTCFLAGS) $(HOST_EXTRACFLAGS) \
|
|
$(HOSTCFLAGS_$(basetarget).o)
|
|
_hostcxx_flags = $(KBUILD_HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) \
|
|
$(HOSTCXXFLAGS_$(basetarget).o)
|
|
|
|
# $(objtree)/$(obj) for including generated headers from checkin source files
|
|
ifeq ($(KBUILD_EXTMOD),)
|
|
ifdef building_out_of_srctree
|
|
_hostc_flags += -I $(objtree)/$(obj)
|
|
_hostcxx_flags += -I $(objtree)/$(obj)
|
|
endif
|
|
endif
|
|
|
|
hostc_flags = -Wp,-MD,$(depfile) $(_hostc_flags)
|
|
hostcxx_flags = -Wp,-MD,$(depfile) $(_hostcxx_flags)
|
|
|
|
#####
|
|
# Compile programs on the host
|
|
|
|
# Create executable from a single .c file
|
|
# host-csingle -> Executable
|
|
quiet_cmd_host-csingle = HOSTCC $@
|
|
cmd_host-csingle = $(HOSTCC) $(hostc_flags) $(KBUILD_HOSTLDFLAGS) -o $@ $< \
|
|
$(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(@F))
|
|
$(host-csingle): $(obj)/%: $(src)/%.c FORCE
|
|
$(call if_changed_dep,host-csingle)
|
|
|
|
# Link an executable based on list of .o files, all plain c
|
|
# host-cmulti -> executable
|
|
quiet_cmd_host-cmulti = HOSTLD $@
|
|
cmd_host-cmulti = $(HOSTCC) $(KBUILD_HOSTLDFLAGS) -o $@ \
|
|
$(addprefix $(obj)/,$($(@F)-objs)) \
|
|
$(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(@F))
|
|
$(host-cmulti): FORCE
|
|
$(call if_changed,host-cmulti)
|
|
$(call multi_depend, $(host-cmulti), , -objs)
|
|
|
|
# Create .o file from a single .c file
|
|
# host-cobjs -> .o
|
|
quiet_cmd_host-cobjs = HOSTCC $@
|
|
cmd_host-cobjs = $(HOSTCC) $(hostc_flags) -c -o $@ $<
|
|
$(host-cobjs): $(obj)/%.o: $(src)/%.c FORCE
|
|
$(call if_changed_dep,host-cobjs)
|
|
|
|
# Link an executable based on list of .o files, a mixture of .c and .cc
|
|
# host-cxxmulti -> executable
|
|
quiet_cmd_host-cxxmulti = HOSTLD $@
|
|
cmd_host-cxxmulti = $(HOSTCXX) $(KBUILD_HOSTLDFLAGS) -o $@ \
|
|
$(foreach o,objs cxxobjs,\
|
|
$(addprefix $(obj)/,$($(@F)-$(o)))) \
|
|
$(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(@F))
|
|
$(host-cxxmulti): FORCE
|
|
$(call if_changed,host-cxxmulti)
|
|
$(call multi_depend, $(host-cxxmulti), , -objs -cxxobjs)
|
|
|
|
# Create .o file from a single .cc (C++) file
|
|
quiet_cmd_host-cxxobjs = HOSTCXX $@
|
|
cmd_host-cxxobjs = $(HOSTCXX) $(hostcxx_flags) -c -o $@ $<
|
|
$(host-cxxobjs): $(obj)/%.o: $(src)/%.cc FORCE
|
|
$(call if_changed_dep,host-cxxobjs)
|
|
|
|
# Compile .c file, create position independent .o file
|
|
# host-cshobjs -> .o
|
|
quiet_cmd_host-cshobjs = HOSTCC -fPIC $@
|
|
cmd_host-cshobjs = $(HOSTCC) $(hostc_flags) -fPIC -c -o $@ $<
|
|
$(host-cshobjs): $(obj)/%.o: $(src)/%.c FORCE
|
|
$(call if_changed_dep,host-cshobjs)
|
|
|
|
# Compile .c file, create position independent .o file
|
|
# Note that plugin capable gcc versions can be either C or C++ based
|
|
# therefore plugin source files have to be compilable in both C and C++ mode.
|
|
# This is why a C++ compiler is invoked on a .c file.
|
|
# host-cxxshobjs -> .o
|
|
quiet_cmd_host-cxxshobjs = HOSTCXX -fPIC $@
|
|
cmd_host-cxxshobjs = $(HOSTCXX) $(hostcxx_flags) -fPIC -c -o $@ $<
|
|
$(host-cxxshobjs): $(obj)/%.o: $(src)/%.c FORCE
|
|
$(call if_changed_dep,host-cxxshobjs)
|
|
|
|
# Link a shared library, based on position independent .o files
|
|
# *.o -> .so shared library (host-cshlib)
|
|
quiet_cmd_host-cshlib = HOSTLLD -shared $@
|
|
cmd_host-cshlib = $(HOSTCC) $(KBUILD_HOSTLDFLAGS) -shared -o $@ \
|
|
$(addprefix $(obj)/,$($(@F:.so=-objs))) \
|
|
$(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(@F))
|
|
$(host-cshlib): FORCE
|
|
$(call if_changed,host-cshlib)
|
|
$(call multi_depend, $(host-cshlib), .so, -objs)
|
|
|
|
# Link a shared library, based on position independent .o files
|
|
# *.o -> .so shared library (host-cxxshlib)
|
|
quiet_cmd_host-cxxshlib = HOSTLLD -shared $@
|
|
cmd_host-cxxshlib = $(HOSTCXX) $(KBUILD_HOSTLDFLAGS) -shared -o $@ \
|
|
$(addprefix $(obj)/,$($(@F:.so=-objs))) \
|
|
$(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(@F))
|
|
$(host-cxxshlib): FORCE
|
|
$(call if_changed,host-cxxshlib)
|
|
$(call multi_depend, $(host-cxxshlib), .so, -objs)
|
|
|
|
targets += $(host-csingle) $(host-cmulti) $(host-cobjs)\
|
|
$(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) $(host-cxxshlib) $(host-cxxshobjs)
|