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