1*4882a593Smuzhiyun# SPDX-License-Identifier: GPL-2.0 2*4882a593Smuzhiyun# ========================================================================== 3*4882a593Smuzhiyun# Building binaries on the host system 4*4882a593Smuzhiyun# Binaries are not used during the compilation of the kernel, and intended 5*4882a593Smuzhiyun# to be build for target board, target board can be host of course. Added to 6*4882a593Smuzhiyun# build binaries to run not on host system. 7*4882a593Smuzhiyun# 8*4882a593Smuzhiyun# Sample syntax 9*4882a593Smuzhiyun# tprogs-y := xsk_example 10*4882a593Smuzhiyun# Will compile xsk_example.c and create an executable named xsk_example 11*4882a593Smuzhiyun# 12*4882a593Smuzhiyun# tprogs-y := xdpsock 13*4882a593Smuzhiyun# xdpsock-objs := xdpsock_1.o xdpsock_2.o 14*4882a593Smuzhiyun# Will compile xdpsock_1.c and xdpsock_2.c, and then link the executable 15*4882a593Smuzhiyun# xdpsock, based on xdpsock_1.o and xdpsock_2.o 16*4882a593Smuzhiyun# 17*4882a593Smuzhiyun# Derived from scripts/Makefile.host 18*4882a593Smuzhiyun# 19*4882a593Smuzhiyun__tprogs := $(sort $(tprogs-y)) 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun# C code 22*4882a593Smuzhiyun# Executables compiled from a single .c file 23*4882a593Smuzhiyuntprog-csingle := $(foreach m,$(__tprogs), \ 24*4882a593Smuzhiyun $(if $($(m)-objs),,$(m))) 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun# C executables linked based on several .o files 27*4882a593Smuzhiyuntprog-cmulti := $(foreach m,$(__tprogs),\ 28*4882a593Smuzhiyun $(if $($(m)-objs),$(m))) 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun# Object (.o) files compiled from .c files 31*4882a593Smuzhiyuntprog-cobjs := $(sort $(foreach m,$(__tprogs),$($(m)-objs))) 32*4882a593Smuzhiyun 33*4882a593Smuzhiyuntprog-csingle := $(addprefix $(obj)/,$(tprog-csingle)) 34*4882a593Smuzhiyuntprog-cmulti := $(addprefix $(obj)/,$(tprog-cmulti)) 35*4882a593Smuzhiyuntprog-cobjs := $(addprefix $(obj)/,$(tprog-cobjs)) 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun##### 38*4882a593Smuzhiyun# Handle options to gcc. Support building with separate output directory 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun_tprogc_flags = $(TPROGS_CFLAGS) \ 41*4882a593Smuzhiyun $(TPROGCFLAGS_$(basetarget).o) 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun# $(objtree)/$(obj) for including generated headers from checkin source files 44*4882a593Smuzhiyunifeq ($(KBUILD_EXTMOD),) 45*4882a593Smuzhiyunifdef building_out_of_srctree 46*4882a593Smuzhiyun_tprogc_flags += -I $(objtree)/$(obj) 47*4882a593Smuzhiyunendif 48*4882a593Smuzhiyunendif 49*4882a593Smuzhiyun 50*4882a593Smuzhiyuntprogc_flags = -Wp,-MD,$(depfile) $(_tprogc_flags) 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun# Create executable from a single .c file 53*4882a593Smuzhiyun# tprog-csingle -> Executable 54*4882a593Smuzhiyunquiet_cmd_tprog-csingle = CC $@ 55*4882a593Smuzhiyun cmd_tprog-csingle = $(CC) $(tprogc_flags) $(TPROGS_LDFLAGS) -o $@ $< \ 56*4882a593Smuzhiyun $(TPROGS_LDLIBS) $(TPROGLDLIBS_$(@F)) 57*4882a593Smuzhiyun$(tprog-csingle): $(obj)/%: $(src)/%.c FORCE 58*4882a593Smuzhiyun $(call if_changed_dep,tprog-csingle) 59*4882a593Smuzhiyun 60*4882a593Smuzhiyun# Link an executable based on list of .o files, all plain c 61*4882a593Smuzhiyun# tprog-cmulti -> executable 62*4882a593Smuzhiyunquiet_cmd_tprog-cmulti = LD $@ 63*4882a593Smuzhiyun cmd_tprog-cmulti = $(CC) $(tprogc_flags) $(TPROGS_LDFLAGS) -o $@ \ 64*4882a593Smuzhiyun $(addprefix $(obj)/,$($(@F)-objs)) \ 65*4882a593Smuzhiyun $(TPROGS_LDLIBS) $(TPROGLDLIBS_$(@F)) 66*4882a593Smuzhiyun$(tprog-cmulti): $(tprog-cobjs) FORCE 67*4882a593Smuzhiyun $(call if_changed,tprog-cmulti) 68*4882a593Smuzhiyun$(call multi_depend, $(tprog-cmulti), , -objs) 69*4882a593Smuzhiyun 70*4882a593Smuzhiyun# Create .o file from a single .c file 71*4882a593Smuzhiyun# tprog-cobjs -> .o 72*4882a593Smuzhiyunquiet_cmd_tprog-cobjs = CC $@ 73*4882a593Smuzhiyun cmd_tprog-cobjs = $(CC) $(tprogc_flags) -c -o $@ $< 74*4882a593Smuzhiyun$(tprog-cobjs): $(obj)/%.o: $(src)/%.c FORCE 75*4882a593Smuzhiyun $(call if_changed_dep,tprog-cobjs) 76