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