| 1 |
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| 2 |
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| 3 | $(obj)/randomize_layout_plugin.so: $(obj)/randomize_layout_seed.h
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| 4 | quiet_cmd_create_randomize_layout_seed = SEEDHDR $@
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| 5 | cmd_create_randomize_layout_seed = \
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| 6 | SEED=$$(cat $(filter-out FORCE,$^) </dev/null); \
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| 7 | echo '/*' > $@; \
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| 8 | echo ' * This file is automatically generated. Keep it private.' >> $@; \
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| 9 | echo ' * Exposing this value will expose the layout of randomized structures.' >> $@; \
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| 10 | echo ' */' >> $@; \
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| 11 | echo "const char *randstruct_seed = \"$$SEED\";" >> $@
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| 12 | $(obj)/randomize_layout_seed.h: $(objtree)/scripts/basic/randstruct.seed FORCE
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| 13 | $(call if_changed,create_randomize_layout_seed)
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| 14 | targets += randomize_layout_seed.h
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| 15 |
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| 16 |
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| 17 |
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| 18 |
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| 19 |
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| 20 |
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| 21 |
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| 22 |
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| 23 |
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| 24 |
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| 25 | always-y += $(GCC_PLUGIN)
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| 26 |
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| 27 | GCC_PLUGINS_DIR = $(shell $(CC) -print-file-name=plugin)
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| 28 |
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| 29 | plugin_cxxflags = -Wp,-MMD,$(depfile) $(KBUILD_HOSTCXXFLAGS) -fPIC \
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| 30 | -include $(srctree)/include/linux/compiler-version.h \
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| 31 | -DPLUGIN_VERSION=$(call stringify,$(KERNELVERSION)) \
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| 32 | -I $(GCC_PLUGINS_DIR)/include -I $(obj) \
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| 33 | -fno-rtti -fno-exceptions -fasynchronous-unwind-tables \
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| 34 | -ggdb -Wno-narrowing -Wno-unused-variable \
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| 35 | -Wno-format-diag
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| 36 |
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| 37 | plugin_ldflags = -shared
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| 38 |
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| 39 | plugin-single := $(foreach m, $(GCC_PLUGIN), $(if $($(m:%.so=%-objs)),,$(m)))
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| 40 | plugin-multi := $(filter-out $(plugin-single), $(GCC_PLUGIN))
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| 41 | plugin-objs := $(sort $(foreach m, $(plugin-multi), $($(m:%.so=%-objs))))
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| 42 |
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| 43 | targets += $(plugin-single) $(plugin-multi) $(plugin-objs)
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| 44 | clean-files += *.so
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| 45 |
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| 46 | plugin-single := $(addprefix $(obj)/, $(plugin-single))
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| 47 | plugin-multi := $(addprefix $(obj)/, $(plugin-multi))
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| 48 | plugin-objs := $(addprefix $(obj)/, $(plugin-objs))
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| 49 |
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| 50 | quiet_cmd_plugin_cxx_so_c = HOSTCXX $@
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| 51 | cmd_plugin_cxx_so_c = $(HOSTCXX) $(plugin_cxxflags) $(plugin_ldflags) -o $@ $<
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| 52 |
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| 53 | $(plugin-single): $(obj)/%.so: $(src)/%.c FORCE
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| 54 | $(call if_changed_dep,plugin_cxx_so_c)
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| 55 |
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| 56 | quiet_cmd_plugin_ld_so_o = HOSTLD $@
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| 57 | cmd_plugin_ld_so_o = $(HOSTCXX) $(plugin_ldflags) -o $@ \
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| 58 | $(addprefix $(obj)/, $($(target-stem)-objs))
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| 59 |
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| 60 | $(plugin-multi): FORCE
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| 61 | $(call if_changed,plugin_ld_so_o)
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| 62 | $(foreach m, $(notdir $(plugin-multi)), $(eval $(obj)/$m: $(addprefix $(obj)/, $($(m:%.so=%-objs)))))
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| 63 |
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| 64 | quiet_cmd_plugin_cxx_o_c = HOSTCXX $@
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| 65 | cmd_plugin_cxx_o_c = $(HOSTCXX) $(plugin_cxxflags) -c -o $@ $<
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| 66 |
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| 67 | $(plugin-objs): $(obj)/%.o: $(src)/%.c FORCE
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| 68 | $(call if_changed_dep,plugin_cxx_o_c)
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