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62 lines
2.3 KiB
62 lines
2.3 KiB
# SPDX-License-Identifier: GPL-2.0 |
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$(obj)/randomize_layout_plugin.so: $(objtree)/$(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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# Build rules for plugins |
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# |
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# No extra code is needed for single-file plugins. |
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# For multi-file plugins, use *-objs syntax to list the objects. |
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# |
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# If the plugin foo.so is compiled from foo.c and foo2.c, you can do: |
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# |
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# foo-objs := foo.o foo2.o |
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always-y += $(GCC_PLUGIN) |
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GCC_PLUGINS_DIR = $(shell $(CC) -print-file-name=plugin) |
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plugin_cxxflags = -Wp,-MMD,$(depfile) $(KBUILD_HOSTCXXFLAGS) -fPIC \ |
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-include $(srctree)/include/linux/compiler-version.h \ |
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-I $(GCC_PLUGINS_DIR)/include -I $(obj) -std=gnu++11 \ |
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-fno-rtti -fno-exceptions -fasynchronous-unwind-tables \ |
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-ggdb -Wno-narrowing -Wno-unused-variable \ |
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-Wno-format-diag |
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plugin_ldflags = -shared |
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plugin-single := $(foreach m, $(GCC_PLUGIN), $(if $($(m:%.so=%-objs)),,$(m))) |
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plugin-multi := $(filter-out $(plugin-single), $(GCC_PLUGIN)) |
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plugin-objs := $(sort $(foreach m, $(plugin-multi), $($(m:%.so=%-objs)))) |
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targets += $(plugin-single) $(plugin-multi) $(plugin-objs) |
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clean-files += *.so |
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plugin-single := $(addprefix $(obj)/, $(plugin-single)) |
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plugin-multi := $(addprefix $(obj)/, $(plugin-multi)) |
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plugin-objs := $(addprefix $(obj)/, $(plugin-objs)) |
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quiet_cmd_plugin_cxx_so_c = HOSTCXX $@ |
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cmd_plugin_cxx_so_c = $(HOSTCXX) $(plugin_cxxflags) $(plugin_ldflags) -o $@ $< |
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$(plugin-single): $(obj)/%.so: $(src)/%.c FORCE |
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$(call if_changed_dep,plugin_cxx_so_c) |
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quiet_cmd_plugin_ld_so_o = HOSTLD $@ |
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cmd_plugin_ld_so_o = $(HOSTCXX) $(plugin_ldflags) -o $@ \ |
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$(addprefix $(obj)/, $($(target-stem)-objs)) |
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$(plugin-multi): FORCE |
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$(call if_changed,plugin_ld_so_o) |
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$(foreach m, $(notdir $(plugin-multi)), $(eval $(obj)/$m: $(addprefix $(obj)/, $($(m:%.so=%-objs))))) |
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quiet_cmd_plugin_cxx_o_c = HOSTCXX $@ |
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cmd_plugin_cxx_o_c = $(HOSTCXX) $(plugin_cxxflags) -c -o $@ $< |
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$(plugin-objs): $(obj)/%.o: $(src)/%.c FORCE |
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$(call if_changed_dep,plugin_cxx_o_c)
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