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