162306a36Sopenharmony_ci# SPDX-License-Identifier: GPL-2.0 262306a36Sopenharmony_ci 362306a36Sopenharmony_ci$(obj)/randomize_layout_plugin.so: $(obj)/randomize_layout_seed.h 462306a36Sopenharmony_ciquiet_cmd_create_randomize_layout_seed = SEEDHDR $@ 562306a36Sopenharmony_cicmd_create_randomize_layout_seed = \ 662306a36Sopenharmony_ci SEED=$$(cat $(filter-out FORCE,$^) </dev/null); \ 762306a36Sopenharmony_ci echo '/*' > $@; \ 862306a36Sopenharmony_ci echo ' * This file is automatically generated. Keep it private.' >> $@; \ 962306a36Sopenharmony_ci echo ' * Exposing this value will expose the layout of randomized structures.' >> $@; \ 1062306a36Sopenharmony_ci echo ' */' >> $@; \ 1162306a36Sopenharmony_ci echo "const char *randstruct_seed = \"$$SEED\";" >> $@ 1262306a36Sopenharmony_ci$(obj)/randomize_layout_seed.h: $(objtree)/scripts/basic/randstruct.seed FORCE 1362306a36Sopenharmony_ci $(call if_changed,create_randomize_layout_seed) 1462306a36Sopenharmony_citargets += randomize_layout_seed.h 1562306a36Sopenharmony_ci 1662306a36Sopenharmony_ci# Build rules for plugins 1762306a36Sopenharmony_ci# 1862306a36Sopenharmony_ci# No extra code is needed for single-file plugins. 1962306a36Sopenharmony_ci# For multi-file plugins, use *-objs syntax to list the objects. 2062306a36Sopenharmony_ci# 2162306a36Sopenharmony_ci# If the plugin foo.so is compiled from foo.c and foo2.c, you can do: 2262306a36Sopenharmony_ci# 2362306a36Sopenharmony_ci# foo-objs := foo.o foo2.o 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_cialways-y += $(GCC_PLUGIN) 2662306a36Sopenharmony_ci 2762306a36Sopenharmony_ciGCC_PLUGINS_DIR = $(shell $(CC) -print-file-name=plugin) 2862306a36Sopenharmony_ci 2962306a36Sopenharmony_ciplugin_cxxflags = -Wp,-MMD,$(depfile) $(KBUILD_HOSTCXXFLAGS) -fPIC \ 3062306a36Sopenharmony_ci -include $(srctree)/include/linux/compiler-version.h \ 3162306a36Sopenharmony_ci -DPLUGIN_VERSION=$(call stringify,$(KERNELVERSION)) \ 3262306a36Sopenharmony_ci -I $(GCC_PLUGINS_DIR)/include -I $(obj) \ 3362306a36Sopenharmony_ci -fno-rtti -fno-exceptions -fasynchronous-unwind-tables \ 3462306a36Sopenharmony_ci -ggdb -Wno-narrowing -Wno-unused-variable \ 3562306a36Sopenharmony_ci -Wno-format-diag 3662306a36Sopenharmony_ci 3762306a36Sopenharmony_ciplugin_ldflags = -shared 3862306a36Sopenharmony_ci 3962306a36Sopenharmony_ciplugin-single := $(foreach m, $(GCC_PLUGIN), $(if $($(m:%.so=%-objs)),,$(m))) 4062306a36Sopenharmony_ciplugin-multi := $(filter-out $(plugin-single), $(GCC_PLUGIN)) 4162306a36Sopenharmony_ciplugin-objs := $(sort $(foreach m, $(plugin-multi), $($(m:%.so=%-objs)))) 4262306a36Sopenharmony_ci 4362306a36Sopenharmony_citargets += $(plugin-single) $(plugin-multi) $(plugin-objs) 4462306a36Sopenharmony_ciclean-files += *.so 4562306a36Sopenharmony_ci 4662306a36Sopenharmony_ciplugin-single := $(addprefix $(obj)/, $(plugin-single)) 4762306a36Sopenharmony_ciplugin-multi := $(addprefix $(obj)/, $(plugin-multi)) 4862306a36Sopenharmony_ciplugin-objs := $(addprefix $(obj)/, $(plugin-objs)) 4962306a36Sopenharmony_ci 5062306a36Sopenharmony_ciquiet_cmd_plugin_cxx_so_c = HOSTCXX $@ 5162306a36Sopenharmony_ci cmd_plugin_cxx_so_c = $(HOSTCXX) $(plugin_cxxflags) $(plugin_ldflags) -o $@ $< 5262306a36Sopenharmony_ci 5362306a36Sopenharmony_ci$(plugin-single): $(obj)/%.so: $(src)/%.c FORCE 5462306a36Sopenharmony_ci $(call if_changed_dep,plugin_cxx_so_c) 5562306a36Sopenharmony_ci 5662306a36Sopenharmony_ciquiet_cmd_plugin_ld_so_o = HOSTLD $@ 5762306a36Sopenharmony_ci cmd_plugin_ld_so_o = $(HOSTCXX) $(plugin_ldflags) -o $@ \ 5862306a36Sopenharmony_ci $(addprefix $(obj)/, $($(target-stem)-objs)) 5962306a36Sopenharmony_ci 6062306a36Sopenharmony_ci$(plugin-multi): FORCE 6162306a36Sopenharmony_ci $(call if_changed,plugin_ld_so_o) 6262306a36Sopenharmony_ci$(foreach m, $(notdir $(plugin-multi)), $(eval $(obj)/$m: $(addprefix $(obj)/, $($(m:%.so=%-objs))))) 6362306a36Sopenharmony_ci 6462306a36Sopenharmony_ciquiet_cmd_plugin_cxx_o_c = HOSTCXX $@ 6562306a36Sopenharmony_ci cmd_plugin_cxx_o_c = $(HOSTCXX) $(plugin_cxxflags) -c -o $@ $< 6662306a36Sopenharmony_ci 6762306a36Sopenharmony_ci$(plugin-objs): $(obj)/%.o: $(src)/%.c FORCE 6862306a36Sopenharmony_ci $(call if_changed_dep,plugin_cxx_o_c) 69