linux/scripts/gcc-plugins/Makefile
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   1# SPDX-License-Identifier: GPL-2.0
   2PLUGINCC := $(CONFIG_PLUGIN_HOSTCC:"%"=%)
   3GCC_PLUGINS_DIR := $(shell $(CC) -print-file-name=plugin)
   4
   5ifeq ($(PLUGINCC),$(HOSTCC))
   6  HOSTLIBS := hostlibs
   7  HOST_EXTRACFLAGS += -I$(GCC_PLUGINS_DIR)/include -I$(src) -std=gnu99 -ggdb
   8  export HOST_EXTRACFLAGS
   9else
  10  HOSTLIBS := hostcxxlibs
  11  HOST_EXTRACXXFLAGS += -I$(GCC_PLUGINS_DIR)/include -I$(src) -std=gnu++98 -fno-rtti
  12  HOST_EXTRACXXFLAGS += -fno-exceptions -fasynchronous-unwind-tables -ggdb
  13  HOST_EXTRACXXFLAGS += -Wno-narrowing -Wno-unused-variable
  14  export HOST_EXTRACXXFLAGS
  15endif
  16
  17$(obj)/randomize_layout_plugin.o: $(objtree)/$(obj)/randomize_layout_seed.h
  18quiet_cmd_create_randomize_layout_seed = GENSEED $@
  19cmd_create_randomize_layout_seed = \
  20  $(CONFIG_SHELL) $(srctree)/$(src)/gen-random-seed.sh $@ $(objtree)/include/generated/randomize_layout_hash.h
  21$(objtree)/$(obj)/randomize_layout_seed.h: FORCE
  22        $(call if_changed,create_randomize_layout_seed)
  23targets = randomize_layout_seed.h randomize_layout_hash.h
  24
  25$(HOSTLIBS)-y := $(foreach p,$(GCC_PLUGIN),$(if $(findstring /,$(p)),,$(p)))
  26always := $($(HOSTLIBS)-y)
  27
  28$(foreach p,$($(HOSTLIBS)-y:%.so=%),$(eval $(p)-objs := $(p).o))
  29
  30clean-files += *.so
  31