scripts/Makefile.userprogs

   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 user_ldlibs     = $(userldlibs) $($(target-stem)-userldlibs)
  23
  24 # Create an executable from a single .c file
  25 quiet_cmd_user_cc_c = CC [U]  $@
  26       cmd_user_cc_c = $(CC) $(user_ccflags) $(user_ldflags) -o $@ $< \
  27                       $(user_ldlibs)
  28 $(user-csingle): $(obj)/%: $(src)/%.c FORCE
  29         $(call if_changed_dep,user_cc_c)
  30
  31 # Link an executable based on list of .o files
  32 quiet_cmd_user_ld = LD [U]  $@
  33       cmd_user_ld = $(CC) $(user_ldflags) -o $@ \
  34                     $(addprefix $(obj)/, $($(target-stem)-objs)) $(user_ldlibs)
  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)