mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 00:48:50 +00:00
76 lines
2.5 KiB
SYSTEMD
76 lines
2.5 KiB
SYSTEMD
|
# SPDX-License-Identifier: GPL-2.0
|
||
|
|
# ==========================================================================
|
||
|
|
# Building binaries on the host system
|
||
|
|
# Binaries are not used during the compilation of the kernel, and intended
|
||
|
|
# to be build for target board, target board can be host of course. Added to
|
||
|
|
# build binaries to run not on host system.
|
||
|
|
#
|
||
|
|
# Sample syntax
|
||
|
|
# tprogs-y := xsk_example
|
||
|
|
# Will compile xsk_example.c and create an executable named xsk_example
|
||
|
|
#
|
||
|
|
# tprogs-y := xdpsock
|
||
|
|
# xdpsock-objs := xdpsock_1.o xdpsock_2.o
|
||
|
|
# Will compile xdpsock_1.c and xdpsock_2.c, and then link the executable
|
||
|
|
# xdpsock, based on xdpsock_1.o and xdpsock_2.o
|
||
|
|
#
|
||
|
|
# Derived from scripts/Makefile.host
|
||
|
|
#
|
||
|
|
__tprogs := $(sort $(tprogs-y))
|
||
|
|
|
||
|
|
# C code
|
||
|
|
# Executables compiled from a single .c file
|
||
|
|
tprog-csingle := $(foreach m,$(__tprogs), \
|
||
|
|
$(if $($(m)-objs),,$(m)))
|
||
|
|
|
||
|
|
# C executables linked based on several .o files
|
||
|
|
tprog-cmulti := $(foreach m,$(__tprogs),\
|
||
|
|
$(if $($(m)-objs),$(m)))
|
||
|
|
|
||
|
|
# Object (.o) files compiled from .c files
|
||
|
|
tprog-cobjs := $(sort $(foreach m,$(__tprogs),$($(m)-objs)))
|
||
|
|
|
||
|
|
tprog-csingle := $(addprefix $(obj)/,$(tprog-csingle))
|
||
|
|
tprog-cmulti := $(addprefix $(obj)/,$(tprog-cmulti))
|
||
|
|
tprog-cobjs := $(addprefix $(obj)/,$(tprog-cobjs))
|
||
|
|
|
||
|
|
#####
|
||
|
|
# Handle options to gcc. Support building with separate output directory
|
||
|
|
|
||
|
|
_tprogc_flags = $(TPROGS_CFLAGS) \
|
||
|
|
$(TPROGCFLAGS_$(basetarget).o)
|
||
|
|
|
||
|
|
# $(objtree)/$(obj) for including generated headers from checkin source files
|
||
|
|
ifeq ($(KBUILD_EXTMOD),)
|
||
|
|
ifdef building_out_of_srctree
|
||
|
|
_tprogc_flags += -I $(objtree)/$(obj)
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
|
||
|
|
tprogc_flags = -Wp,-MD,$(depfile) $(_tprogc_flags)
|
||
|
|
|
||
|
|
# Create executable from a single .c file
|
||
|
|
# tprog-csingle -> Executable
|
||
|
|
quiet_cmd_tprog-csingle = CC $@
|
||
|
|
cmd_tprog-csingle = $(CC) $(tprogc_flags) $(TPROGS_LDFLAGS) -o $@ $< \
|
||
|
|
$(TPROGS_LDLIBS) $(TPROGLDLIBS_$(@F))
|
||
|
|
$(tprog-csingle): $(obj)/%: $(src)/%.c FORCE
|
||
|
|
$(call if_changed_dep,tprog-csingle)
|
||
|
|
|
||
|
|
# Link an executable based on list of .o files, all plain c
|
||
|
|
# tprog-cmulti -> executable
|
||
|
|
quiet_cmd_tprog-cmulti = LD $@
|
||
|
|
cmd_tprog-cmulti = $(CC) $(tprogc_flags) $(TPROGS_LDFLAGS) -o $@ \
|
||
|
|
$(addprefix $(obj)/,$($(@F)-objs)) \
|
||
|
|
$(TPROGS_LDLIBS) $(TPROGLDLIBS_$(@F))
|
||
|
|
$(tprog-cmulti): $(tprog-cobjs) FORCE
|
||
|
|
$(call if_changed,tprog-cmulti)
|
||
|
|
$(call multi_depend, $(tprog-cmulti), , -objs)
|
||
|
|
|
||
|
|
# Create .o file from a single .c file
|
||
|
|
# tprog-cobjs -> .o
|
||
|
|
quiet_cmd_tprog-cobjs = CC $@
|
||
|
|
cmd_tprog-cobjs = $(CC) $(tprogc_flags) -c -o $@ $<
|
||
|
|
$(tprog-cobjs): $(obj)/%.o: $(src)/%.c FORCE
|
||
|
|
$(call if_changed_dep,tprog-cobjs)
|