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Current File : //usr/src/linux-headers-5.15.0-127-generic/scripts/Makefile.userprogs

# SPDX-License-Identifier: GPL-2.0-only
#
# Build userspace programs for the target system
#

# Executables compiled from a single .c file
user-csingle	:= $(foreach m, $(userprogs), $(if $($(m)-objs),,$(m)))

# Executables linked based on several .o files
user-cmulti	:= $(foreach m, $(userprogs), $(if $($(m)-objs),$(m)))

# Objects compiled from .c files
user-cobjs	:= $(sort $(foreach m, $(userprogs), $($(m)-objs)))

user-csingle	:= $(addprefix $(obj)/, $(user-csingle))
user-cmulti	:= $(addprefix $(obj)/, $(user-cmulti))
user-cobjs	:= $(addprefix $(obj)/, $(user-cobjs))

user_ccflags	= -Wp,-MMD,$(depfile) $(KBUILD_USERCFLAGS) $(userccflags) \
			$($(target-stem)-userccflags)
user_ldflags	= $(KBUILD_USERLDFLAGS) $(userldflags) $($(target-stem)-userldflags)

# Create an executable from a single .c file
quiet_cmd_user_cc_c = CC [U]  $@
      cmd_user_cc_c = $(CC) $(user_ccflags) $(user_ldflags) -o $@ $< \
		      $($(target-stem)-userldlibs)
$(user-csingle): $(obj)/%: $(src)/%.c FORCE
	$(call if_changed_dep,user_cc_c)

# Link an executable based on list of .o files
quiet_cmd_user_ld = LD [U]  $@
      cmd_user_ld = $(CC) $(user_ldflags) -o $@ \
		    $(addprefix $(obj)/, $($(target-stem)-objs)) \
		    $($(target-stem)-userldlibs)
$(user-cmulti): FORCE
	$(call if_changed,user_ld)
$(call multi_depend, $(user-cmulti), , -objs)

# Create .o file from a .c file
quiet_cmd_user_cc_o_c = CC [U]  $@
      cmd_user_cc_o_c = $(CC) $(user_ccflags) -c -o $@ $<
$(user-cobjs): $(obj)/%.o: $(src)/%.c FORCE
	$(call if_changed_dep,user_cc_o_c)

targets += $(user-csingle) $(user-cmulti) $(user-cobjs)