1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
>> 2 GCC_PLUGINS_DIR := $(shell $(CC) -print-file-name=plugin)
2 3
3 $(obj)/randomize_layout_plugin.so: $(obj)/rand !! 4 ifeq ($(PLUGINCC),$(HOSTCC))
4 quiet_cmd_create_randomize_layout_seed = SEEDH !! 5 HOSTLIBS := hostlibs
5 cmd_create_randomize_layout_seed = \ !! 6 HOST_EXTRACFLAGS += -I$(GCC_PLUGINS_DIR)/include -I$(src) -std=gnu99 -ggdb
6 SEED=$$(cat $(filter-out FORCE,$^) </d !! 7 export HOST_EXTRACFLAGS
7 echo '/*' > $@; \ !! 8 else
8 echo ' * This file is automatically ge !! 9 HOSTLIBS := hostcxxlibs
9 echo ' * Exposing this value will expo !! 10 HOST_EXTRACXXFLAGS += -I$(GCC_PLUGINS_DIR)/include -I$(src) -std=gnu++98 -fno-rtti
10 echo ' */' >> $@; \ !! 11 HOST_EXTRACXXFLAGS += -fno-exceptions -fasynchronous-unwind-tables -ggdb
11 echo "const char *randstruct_seed = \" !! 12 HOST_EXTRACXXFLAGS += -Wno-narrowing -Wno-unused-variable
12 $(obj)/randomize_layout_seed.h: $(objtree)/scr !! 13 export HOST_EXTRACXXFLAGS
13 $(call if_changed,create_randomize_lay !! 14 endif
14 targets += randomize_layout_seed.h !! 15
15 !! 16 ifneq ($(CFLAGS_KCOV), $(SANCOV_PLUGIN))
16 # Build rules for plugins !! 17 GCC_PLUGIN := $(filter-out $(SANCOV_PLUGIN), $(GCC_PLUGIN))
17 # !! 18 endif
18 # No extra code is needed for single-file plug <<
19 # For multi-file plugins, use *-objs syntax to <<
20 # <<
21 # If the plugin foo.so is compiled from foo.c <<
22 # <<
23 # foo-objs := foo.o foo2.o <<
24 <<
25 always-y += $(GCC_PLUGIN) <<
26 <<
27 GCC_PLUGINS_DIR = $(shell $(CC) -print-file-na <<
28 <<
29 plugin_cxxflags = -Wp,-MMD,$(depfile) $(KBUILD <<
30 -include $(srctree)/include/ <<
31 -DPLUGIN_VERSION=$(call stri <<
32 -I $(GCC_PLUGINS_DIR)/includ <<
33 -fno-rtti -fno-exceptions -f <<
34 -ggdb -Wno-narrowing -Wno-un <<
35 -Wno-format-diag <<
36 <<
37 plugin_ldflags = -shared <<
38 <<
39 plugin-single := $(foreach m, $(GCC_PLUGIN), <<
40 plugin-multi := $(filter-out $(plugin-singl <<
41 plugin-objs := $(sort $(foreach m, $(plugi <<
42 <<
43 targets += $(plugin-single) $(plugin-multi) $( <<
44 clean-files += *.so <<
45 19
46 plugin-single := $(addprefix $(obj)/, $(plug !! 20 export HOSTLIBS
47 plugin-multi := $(addprefix $(obj)/, $(plug <<
48 plugin-objs := $(addprefix $(obj)/, $(plug <<
49 21
50 quiet_cmd_plugin_cxx_so_c = HOSTCXX $@ !! 22 $(obj)/randomize_layout_plugin.o: $(objtree)/$(obj)/randomize_layout_seed.h
51 cmd_plugin_cxx_so_c = $(HOSTCXX) $(plugi !! 23 quiet_cmd_create_randomize_layout_seed = GENSEED $@
52 !! 24 cmd_create_randomize_layout_seed = \
53 $(plugin-single): $(obj)/%.so: $(src)/%.c FORC !! 25 $(CONFIG_SHELL) $(srctree)/$(src)/gen-random-seed.sh $@ $(objtree)/include/generated/randomize_layout_hash.h
54 $(call if_changed_dep,plugin_cxx_so_c) !! 26 $(objtree)/$(obj)/randomize_layout_seed.h: FORCE
>> 27 $(call if_changed,create_randomize_layout_seed)
>> 28 targets = randomize_layout_seed.h randomize_layout_hash.h
55 29
56 quiet_cmd_plugin_ld_so_o = HOSTLD $@ !! 30 $(HOSTLIBS)-y := $(foreach p,$(GCC_PLUGIN),$(if $(findstring /,$(p)),,$(p)))
57 cmd_plugin_ld_so_o = $(HOSTCXX) $(plugin !! 31 always := $($(HOSTLIBS)-y)
58 $(addprefix $(obj)/ <<
59 32
60 $(plugin-multi): FORCE !! 33 $(foreach p,$($(HOSTLIBS)-y:%.so=%),$(eval $(p)-objs := $(p).o))
61 $(call if_changed,plugin_ld_so_o) <<
62 $(foreach m, $(notdir $(plugin-multi)), $(eval <<
63 34
64 quiet_cmd_plugin_cxx_o_c = HOSTCXX $@ !! 35 subdir-y := $(GCC_PLUGIN_SUBDIR)
65 cmd_plugin_cxx_o_c = $(HOSTCXX) $(plugin !! 36 subdir- += $(GCC_PLUGIN_SUBDIR)
66 37
67 $(plugin-objs): $(obj)/%.o: $(src)/%.c FORCE !! 38 clean-files += *.so
68 $(call if_changed_dep,plugin_cxx_o_c) <<
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