projects / mirror_ubuntu-jammy-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | # SPDX-License-Identifier: GPL-2.0 |
| 6b90bd4b | 2 | |
| 42640b13 | 3 | $(obj)/randomize_layout_plugin.so: $(objtree)/$(obj)/randomize_layout_seed.h |
| 313dd1b6 KC |
4 | quiet_cmd_create_randomize_layout_seed = GENSEED $@ |
| 5 | cmd_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) | |
| 42640b13 MY |
9 | targets += randomize_layout_seed.h randomize_layout_hash.h |
| 10 | ||
| 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 | ||
| 20 | always-y += $(GCC_PLUGIN) | |
| 313dd1b6 | 21 | |
| 42640b13 | 22 | GCC_PLUGINS_DIR = $(shell $(CC) -print-file-name=plugin) |
| 6b90bd4b | 23 | |
| 42640b13 | 24 | plugin_cxxflags = -Wp,-MMD,$(depfile) $(KBUILD_HOSTCXXFLAGS) -fPIC \ |
| ce6ed1c4 | 25 | -include $(srctree)/include/linux/compiler-version.h \ |
| 67a5a680 | 26 | -I $(GCC_PLUGINS_DIR)/include -I $(obj) -std=gnu++11 \ |
| 42640b13 | 27 | -fno-rtti -fno-exceptions -fasynchronous-unwind-tables \ |
| 67a5a680 | 28 | -ggdb -Wno-narrowing -Wno-unused-variable \ |
| 42640b13 | 29 | -Wno-format-diag |
| 543c37cb | 30 | |
| 42640b13 MY |
31 | plugin_ldflags = -shared |
| 32 | ||
| 33 | plugin-single := $(foreach m, $(GCC_PLUGIN), $(if $($(m:%.so=%-objs)),,$(m))) | |
| 34 | plugin-multi := $(filter-out $(plugin-single), $(GCC_PLUGIN)) | |
| 35 | plugin-objs := $(sort $(foreach m, $(plugin-multi), $($(m:%.so=%-objs)))) | |
| 36 | ||
| 37 | targets += $(plugin-single) $(plugin-multi) $(plugin-objs) | |
| 6b90bd4b | 38 | clean-files += *.so |
| 42640b13 MY |
39 | |
| 40 | plugin-single := $(addprefix $(obj)/, $(plugin-single)) | |
| 41 | plugin-multi := $(addprefix $(obj)/, $(plugin-multi)) | |
| 42 | plugin-objs := $(addprefix $(obj)/, $(plugin-objs)) | |
| 43 | ||
| 44 | quiet_cmd_plugin_cxx_so_c = HOSTCXX $@ | |
| 45 | cmd_plugin_cxx_so_c = $(HOSTCXX) $(plugin_cxxflags) $(plugin_ldflags) -o $@ $< | |
| 46 | ||
| 47 | $(plugin-single): $(obj)/%.so: $(src)/%.c FORCE | |
| 48 | $(call if_changed_dep,plugin_cxx_so_c) | |
| 49 | ||
| 50 | quiet_cmd_plugin_ld_so_o = HOSTLD $@ | |
| 51 | cmd_plugin_ld_so_o = $(HOSTCXX) $(plugin_ldflags) -o $@ \ | |
| 52 | $(addprefix $(obj)/, $($(target-stem)-objs)) | |
| 53 | ||
| 54 | $(plugin-multi): FORCE | |
| 55 | $(call if_changed,plugin_ld_so_o) | |
| 56 | $(foreach m, $(notdir $(plugin-multi)), $(eval $(obj)/$m: $(addprefix $(obj)/, $($(m:%.so=%-objs))))) | |
| 57 | ||
| 58 | quiet_cmd_plugin_cxx_o_c = HOSTCXX $@ | |
| 59 | cmd_plugin_cxx_o_c = $(HOSTCXX) $(plugin_cxxflags) -c -o $@ $< | |
| 60 | ||
| 61 | $(plugin-objs): $(obj)/%.o: $(src)/%.c FORCE | |
| 62 | $(call if_changed_dep,plugin_cxx_o_c) |