scripts/Makefile.vmlinux

   1 # SPDX-License-Identifier: GPL-2.0-only
   2
   3 include include/config/auto.conf
   4 include $(srctree)/scripts/Kbuild.include
   5
   6 # for c_flags
   7 include $(srctree)/scripts/Makefile.lib
   8
   9 quiet_cmd_cc_o_c = CC      $@
  10       cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
  11
  12 %.o: %.c FORCE
  13         $(call if_changed_dep,cc_o_c)
  14
  15 targets := $(MAKECMDGOALS)
  16
  17 # Add FORCE to the prequisites of a target to force it to be always rebuilt.
  18 # ---------------------------------------------------------------------------
  19
  20 PHONY += FORCE
  21 FORCE:
  22
  23 # Read all saved command lines and dependencies for the $(targets) we
  24 # may be building above, using $(if_changed{,_dep}). As an
  25 # optimization, we don't need to read them if the target does not
  26 # exist, we will rebuild anyway in that case.
  27
  28 existing-targets := $(wildcard $(sort $(targets)))
  29
  30 -include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd)
  31
  32 .PHONY: $(PHONY)