forked from Minki/linux
59f53855ba
Run scripts/gcc-plugin.sh from Kconfig so that users can enable GCC_PLUGINS only when the compiler supports building plugins. Kconfig defines a new symbol, PLUGIN_HOSTCC. This will contain the compiler (g++ or gcc) used for building plugins, or empty if the plugin can not be supported at all. This allows us to remove all ugly testing in Makefile.gcc-plugins. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Kees Cook <keescook@chromium.org>
36 lines
1.3 KiB
Makefile
36 lines
1.3 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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PLUGINCC := $(CONFIG_PLUGIN_HOSTCC:"%"=%)
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GCC_PLUGINS_DIR := $(shell $(CC) -print-file-name=plugin)
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ifeq ($(PLUGINCC),$(HOSTCC))
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HOSTLIBS := hostlibs
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HOST_EXTRACFLAGS += -I$(GCC_PLUGINS_DIR)/include -I$(src) -std=gnu99 -ggdb
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export HOST_EXTRACFLAGS
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else
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HOSTLIBS := hostcxxlibs
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HOST_EXTRACXXFLAGS += -I$(GCC_PLUGINS_DIR)/include -I$(src) -std=gnu++98 -fno-rtti
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HOST_EXTRACXXFLAGS += -fno-exceptions -fasynchronous-unwind-tables -ggdb
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HOST_EXTRACXXFLAGS += -Wno-narrowing -Wno-unused-variable
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export HOST_EXTRACXXFLAGS
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endif
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export HOSTLIBS
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$(obj)/randomize_layout_plugin.o: $(objtree)/$(obj)/randomize_layout_seed.h
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quiet_cmd_create_randomize_layout_seed = GENSEED $@
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cmd_create_randomize_layout_seed = \
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$(CONFIG_SHELL) $(srctree)/$(src)/gen-random-seed.sh $@ $(objtree)/include/generated/randomize_layout_hash.h
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$(objtree)/$(obj)/randomize_layout_seed.h: FORCE
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$(call if_changed,create_randomize_layout_seed)
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targets = randomize_layout_seed.h randomize_layout_hash.h
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$(HOSTLIBS)-y := $(foreach p,$(GCC_PLUGIN),$(if $(findstring /,$(p)),,$(p)))
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always := $($(HOSTLIBS)-y)
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$(foreach p,$($(HOSTLIBS)-y:%.so=%),$(eval $(p)-objs := $(p).o))
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subdir-y := $(GCC_PLUGIN_SUBDIR)
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subdir- += $(GCC_PLUGIN_SUBDIR)
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clean-files += *.so
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