1 # SPDX-License-Identifier: GPL-2.0-only
3 # Build userspace programs for the target system
6 # Executables compiled from a single .c file
7 user-csingle := $(foreach m, $(userprogs), $(if $($(m)-objs),,$(m)))
9 # Executables linked based on several .o files
10 user-cmulti := $(foreach m, $(userprogs), $(if $($(m)-objs),$(m)))
12 # Objects compiled from .c files
13 user-cobjs := $(sort $(foreach m, $(userprogs), $($(m)-objs)))
15 user-csingle := $(addprefix $(obj)/, $(user-csingle))
16 user-cmulti := $(addprefix $(obj)/, $(user-cmulti))
17 user-cobjs := $(addprefix $(obj)/, $(user-cobjs))
19 user_ccflags = -Wp,-MMD,$(depfile) $(KBUILD_USERCFLAGS) $(userccflags) \
20 $($(target-stem)-userccflags)
21 user_ldflags = $(KBUILD_USERLDFLAGS) $(userldflags) $($(target-stem)-userldflags)
23 # Create an executable from a single .c file
24 quiet_cmd_user_cc_c = CC [U] $@
25 cmd_user_cc_c = $(CC) $(user_ccflags) $(user_ldflags) -o $@ $< \
26 $($(target-stem)-userldlibs)
27 $(user-csingle): $(obj)/%: $(src)/%.c FORCE
28 $(call if_changed_dep,user_cc_c)
30 # Link an executable based on list of .o files
31 quiet_cmd_user_ld = LD [U] $@
32 cmd_user_ld = $(CC) $(user_ldflags) -o $@ \
33 $(addprefix $(obj)/, $($(target-stem)-objs)) \
34 $($(target-stem)-userldlibs)
36 $(call if_changed,user_ld)
37 $(call multi_depend, $(user-cmulti), , -objs)
39 # Create .o file from a .c file
40 quiet_cmd_user_cc_o_c = CC [U] $@
41 cmd_user_cc_o_c = $(CC) $(user_ccflags) -c -o $@ $<
42 $(user-cobjs): $(obj)/%.o: $(src)/%.c FORCE
43 $(call if_changed_dep,user_cc_o_c)
45 targets += $(user-csingle) $(user-cmulti) $(user-cobjs)