Makefile (9e8238020c5beba64e7ffafbb7ea0fb02fe68270) Makefile (42640b134bf44e3bac34808e8c39660c7ae42855)
1# SPDX-License-Identifier: GPL-2.0
1# SPDX-License-Identifier: GPL-2.0
2GCC_PLUGINS_DIR := $(shell $(CC) -print-file-name=plugin)
3
2
4HOST_EXTRACXXFLAGS += -I$(GCC_PLUGINS_DIR)/include -I$(src) -std=gnu++98 -fno-rtti
5HOST_EXTRACXXFLAGS += -fno-exceptions -fasynchronous-unwind-tables -ggdb
6HOST_EXTRACXXFLAGS += -Wno-narrowing -Wno-unused-variable -Wno-c++11-compat
7HOST_EXTRACXXFLAGS += -Wno-format-diag
8
9$(obj)/randomize_layout_plugin.o: $(objtree)/$(obj)/randomize_layout_seed.h
3$(obj)/randomize_layout_plugin.so: $(objtree)/$(obj)/randomize_layout_seed.h
10quiet_cmd_create_randomize_layout_seed = GENSEED $@
11cmd_create_randomize_layout_seed = \
12 $(CONFIG_SHELL) $(srctree)/$(src)/gen-random-seed.sh $@ $(objtree)/include/generated/randomize_layout_hash.h
13$(objtree)/$(obj)/randomize_layout_seed.h: FORCE
14 $(call if_changed,create_randomize_layout_seed)
4quiet_cmd_create_randomize_layout_seed = GENSEED $@
5cmd_create_randomize_layout_seed = \
6 $(CONFIG_SHELL) $(srctree)/$(src)/gen-random-seed.sh $@ $(objtree)/include/generated/randomize_layout_hash.h
7$(objtree)/$(obj)/randomize_layout_seed.h: FORCE
8 $(call if_changed,create_randomize_layout_seed)
15targets = randomize_layout_seed.h randomize_layout_hash.h
9targets += randomize_layout_seed.h randomize_layout_hash.h
16
10
17hostcxxlibs-y := $(foreach p,$(GCC_PLUGIN),$(if $(findstring /,$(p)),,$(p)))
18always-y := $(hostcxxlibs-y)
11# Build rules for plugins
12#
13# No extra code is needed for single-file plugins.
14# For multi-file plugins, use *-objs syntax to list the objects.
15#
16# If the plugin foo.so is compiled from foo.c and foo2.c, you can do:
17#
18# foo-objs := foo.o foo2.o
19
19
20$(foreach p,$(hostcxxlibs-y:%.so=%),$(eval $(p)-objs := $(p).o))
20always-y += $(GCC_PLUGIN)
21
21
22GCC_PLUGINS_DIR = $(shell $(CC) -print-file-name=plugin)
23
24plugin_cxxflags = -Wp,-MMD,$(depfile) $(KBUILD_HOSTCXXFLAGS) -fPIC \
25 -I $(GCC_PLUGINS_DIR)/include -I $(obj) -std=gnu++98 \
26 -fno-rtti -fno-exceptions -fasynchronous-unwind-tables \
27 -ggdb -Wno-narrowing -Wno-unused-variable -Wno-c++11-compat \
28 -Wno-format-diag
29
30plugin_ldflags = -shared
31
32plugin-single := $(foreach m, $(GCC_PLUGIN), $(if $($(m:%.so=%-objs)),,$(m)))
33plugin-multi := $(filter-out $(plugin-single), $(GCC_PLUGIN))
34plugin-objs := $(sort $(foreach m, $(plugin-multi), $($(m:%.so=%-objs))))
35
36targets += $(plugin-single) $(plugin-multi) $(plugin-objs)
22clean-files += *.so
37clean-files += *.so
38
39plugin-single := $(addprefix $(obj)/, $(plugin-single))
40plugin-multi := $(addprefix $(obj)/, $(plugin-multi))
41plugin-objs := $(addprefix $(obj)/, $(plugin-objs))
42
43quiet_cmd_plugin_cxx_so_c = HOSTCXX $@
44 cmd_plugin_cxx_so_c = $(HOSTCXX) $(plugin_cxxflags) $(plugin_ldflags) -o $@ $<
45
46$(plugin-single): $(obj)/%.so: $(src)/%.c FORCE
47 $(call if_changed_dep,plugin_cxx_so_c)
48
49quiet_cmd_plugin_ld_so_o = HOSTLD $@
50 cmd_plugin_ld_so_o = $(HOSTCXX) $(plugin_ldflags) -o $@ \
51 $(addprefix $(obj)/, $($(target-stem)-objs))
52
53$(plugin-multi): FORCE
54 $(call if_changed,plugin_ld_so_o)
55$(foreach m, $(notdir $(plugin-multi)), $(eval $(obj)/$m: $(addprefix $(obj)/, $($(m:%.so=%-objs)))))
56
57quiet_cmd_plugin_cxx_o_c = HOSTCXX $@
58 cmd_plugin_cxx_o_c = $(HOSTCXX) $(plugin_cxxflags) -c -o $@ $<
59
60$(plugin-objs): $(obj)/%.o: $(src)/%.c FORCE
61 $(call if_changed_dep,plugin_cxx_o_c)