# SPDX-License-Identifier: GPL-2.0

  $(obj)/randomize_layout_plugin.so: $(objtree)/$(obj)/randomize_layout_seed.h

  quiet_cmd_create_randomize_layout_seed = GENSEED $@
  cmd_create_randomize_layout_seed = \
    $(CONFIG_SHELL) $(srctree)/$(src)/gen-random-seed.sh $@ $(objtree)/include/generated/randomize_layout_hash.h
  $(objtree)/$(obj)/randomize_layout_seed.h: FORCE
  	$(call if_changed,create_randomize_layout_seed)

  targets += randomize_layout_seed.h randomize_layout_hash.h
  
  # Build rules for plugins
  #
  # No extra code is needed for single-file plugins.
  # For multi-file plugins, use *-objs syntax to list the objects.
  #
  # If the plugin foo.so is compiled from foo.c and foo2.c, you can do:
  #
  # foo-objs := foo.o foo2.o
  
  always-y += $(GCC_PLUGIN)

  GCC_PLUGINS_DIR = $(shell $(CC) -print-file-name=plugin)

  plugin_cxxflags	= -Wp,-MMD,$(depfile) $(KBUILD_HOSTCXXFLAGS) -fPIC \
  		   -I $(GCC_PLUGINS_DIR)/include -I $(obj) -std=gnu++98 \
  		   -fno-rtti -fno-exceptions -fasynchronous-unwind-tables \
  		   -ggdb -Wno-narrowing -Wno-unused-variable -Wno-c++11-compat \
  		   -Wno-format-diag

  plugin_ldflags	= -shared
  
  plugin-single	:= $(foreach m, $(GCC_PLUGIN), $(if $($(m:%.so=%-objs)),,$(m)))
  plugin-multi	:= $(filter-out $(plugin-single), $(GCC_PLUGIN))
  plugin-objs	:= $(sort $(foreach m, $(plugin-multi), $($(m:%.so=%-objs))))
  
  targets += $(plugin-single) $(plugin-multi) $(plugin-objs)

  clean-files += *.so

  
  plugin-single	:= $(addprefix $(obj)/, $(plugin-single))
  plugin-multi	:= $(addprefix $(obj)/, $(plugin-multi))
  plugin-objs	:= $(addprefix $(obj)/, $(plugin-objs))
  
  quiet_cmd_plugin_cxx_so_c = HOSTCXX $@
        cmd_plugin_cxx_so_c = $(HOSTCXX) $(plugin_cxxflags) $(plugin_ldflags) -o $@ $<
  
  $(plugin-single): $(obj)/%.so: $(src)/%.c FORCE
  	$(call if_changed_dep,plugin_cxx_so_c)
  
  quiet_cmd_plugin_ld_so_o = HOSTLD  $@
        cmd_plugin_ld_so_o = $(HOSTCXX) $(plugin_ldflags) -o $@ \
  			   $(addprefix $(obj)/, $($(target-stem)-objs))
  
  $(plugin-multi): FORCE
  	$(call if_changed,plugin_ld_so_o)
  $(foreach m, $(notdir $(plugin-multi)), $(eval $(obj)/$m: $(addprefix $(obj)/, $($(m:%.so=%-objs)))))
  
  quiet_cmd_plugin_cxx_o_c = HOSTCXX $@
        cmd_plugin_cxx_o_c = $(HOSTCXX) $(plugin_cxxflags) -c -o $@ $<
  
  $(plugin-objs): $(obj)/%.o: $(src)/%.c FORCE
  	$(call if_changed_dep,plugin_cxx_o_c)