| Masahiro Yamada | 7f3a59d | 2020-04-29 12:45:14 +0900 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0-only |
| 2 | # |
| 3 | # Build userspace programs for the target system |
| 4 | # |
| 5 | |
| 6 | # Executables compiled from a single .c file |
| 7 | user-csingle := $(foreach m, $(userprogs), $(if $($(m)-objs),,$(m))) |
| 8 | |
| 9 | # Executables linked based on several .o files |
| 10 | user-cmulti := $(foreach m, $(userprogs), $(if $($(m)-objs),$(m))) |
| 11 | |
| 12 | # Objects compiled from .c files |
| 13 | user-cobjs := $(sort $(foreach m, $(userprogs), $($(m)-objs))) |
| 14 | |
| 15 | user-csingle := $(addprefix $(obj)/, $(user-csingle)) |
| 16 | user-cmulti := $(addprefix $(obj)/, $(user-cmulti)) |
| 17 | user-cobjs := $(addprefix $(obj)/, $(user-cobjs)) |
| 18 | |
| 19 | user_ccflags = -Wp,-MMD,$(depfile) $(KBUILD_USERCFLAGS) $(userccflags) \ |
| 20 | $($(target-stem)-userccflags) |
| 21 | user_ldflags = $(KBUILD_USERLDFLAGS) $(userldflags) $($(target-stem)-userldflags) |
| 22 | |
| 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) |
| 29 | |
| 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) |
| 35 | $(user-cmulti): FORCE |
| 36 | $(call if_changed,user_ld) |
| 37 | $(call multi_depend, $(user-cmulti), , -objs) |
| 38 | |
| 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) |
| 44 | |
| 45 | targets += $(user-csingle) $(user-cmulti) $(user-cobjs) |