/
usr
/
src
/
kernels
/
4.18.0-553.157.1.el8_10.x86_64
/
samples
/
bpf
/
/usr/src/kernels/4.18.0-553.157.1.el8_10.x86_64/samples/bpf
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Makefile.target
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/usr/src/kernels/4.18.0-553.157.1.el8_10.x86_64/samples/bpf/Makefile.target
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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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