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- # 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)
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