projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | # SPDX-License-Identifier: GPL-2.0 |
| 6b90bd4b | 2 | |
| be2b34fa KC |
3 | $(obj)/randomize_layout_plugin.so: $(obj)/randomize_layout_seed.h |
| 4 | quiet_cmd_create_randomize_layout_seed = SEEDHDR $@ | |
| 313dd1b6 | 5 | cmd_create_randomize_layout_seed = \ |
| be2b34fa KC |
6 | SEED=$$(cat $(filter-out FORCE,$^) </dev/null); \ |
| 7 | echo '/*' > $@; \ | |
| 8 | echo ' * This file is automatically generated. Keep it private.' >> $@; \ | |
| 9 | echo ' * Exposing this value will expose the layout of randomized structures.' >> $@; \ | |
| 10 | echo ' */' >> $@; \ | |
| 11 | echo "const char *randstruct_seed = \"$$SEED\";" >> $@ | |
| 12 | $(obj)/randomize_layout_seed.h: $(objtree)/scripts/basic/randstruct.seed FORCE | |
| 313dd1b6 | 13 | $(call if_changed,create_randomize_layout_seed) |
| be2b34fa | 14 | targets += randomize_layout_seed.h |
| 42640b13 MY |
15 | |
| 16 | # Build rules for plugins | |
| 17 | # | |
| 18 | # No extra code is needed for single-file plugins. | |
| 19 | # For multi-file plugins, use *-objs syntax to list the objects. | |
| 20 | # | |
| 21 | # If the plugin foo.so is compiled from foo.c and foo2.c, you can do: | |
| 22 | # | |
| 23 | # foo-objs := foo.o foo2.o | |
| 24 | ||
| 25 | always-y += $(GCC_PLUGIN) | |
| 313dd1b6 | 26 | |
| 42640b13 | 27 | GCC_PLUGINS_DIR = $(shell $(CC) -print-file-name=plugin) |
| 6b90bd4b | 28 | |
| 42640b13 | 29 | plugin_cxxflags = -Wp,-MMD,$(depfile) $(KBUILD_HOSTCXXFLAGS) -fPIC \ |
| ce6ed1c4 | 30 | -include $(srctree)/include/linux/compiler-version.h \ |
| d37aa2ef | 31 | -DPLUGIN_VERSION=$(call stringify,$(KERNELVERSION)) \ |
| 5a6b64ad | 32 | -I $(GCC_PLUGINS_DIR)/include -I $(obj) \ |
| 61f60bac KC |
33 | -fno-rtti -fno-exceptions -fasynchronous-unwind-tables \ |
| 34 | -ggdb -Wno-narrowing -Wno-unused-variable \ | |
| 35 | -Wno-format-diag | |
| 543c37cb | 36 | |
| 42640b13 MY |
37 | plugin_ldflags = -shared |
| 38 | ||
| 39 | plugin-single := $(foreach m, $(GCC_PLUGIN), $(if $($(m:%.so=%-objs)),,$(m))) | |
| 40 | plugin-multi := $(filter-out $(plugin-single), $(GCC_PLUGIN)) | |
| 41 | plugin-objs := $(sort $(foreach m, $(plugin-multi), $($(m:%.so=%-objs)))) | |
| 42 | ||
| 43 | targets += $(plugin-single) $(plugin-multi) $(plugin-objs) | |
| 6b90bd4b | 44 | clean-files += *.so |
| 42640b13 MY |
45 | |
| 46 | plugin-single := $(addprefix $(obj)/, $(plugin-single)) | |
| 47 | plugin-multi := $(addprefix $(obj)/, $(plugin-multi)) | |
| 48 | plugin-objs := $(addprefix $(obj)/, $(plugin-objs)) | |
| 49 | ||
| 50 | quiet_cmd_plugin_cxx_so_c = HOSTCXX $@ | |
| 51 | cmd_plugin_cxx_so_c = $(HOSTCXX) $(plugin_cxxflags) $(plugin_ldflags) -o $@ $< | |
| 52 | ||
| 53 | $(plugin-single): $(obj)/%.so: $(src)/%.c FORCE | |
| 54 | $(call if_changed_dep,plugin_cxx_so_c) | |
| 55 | ||
| 56 | quiet_cmd_plugin_ld_so_o = HOSTLD $@ | |
| 57 | cmd_plugin_ld_so_o = $(HOSTCXX) $(plugin_ldflags) -o $@ \ | |
| 58 | $(addprefix $(obj)/, $($(target-stem)-objs)) | |
| 59 | ||
| 60 | $(plugin-multi): FORCE | |
| 61 | $(call if_changed,plugin_ld_so_o) | |
| 62 | $(foreach m, $(notdir $(plugin-multi)), $(eval $(obj)/$m: $(addprefix $(obj)/, $($(m:%.so=%-objs))))) | |
| 63 | ||
| 64 | quiet_cmd_plugin_cxx_o_c = HOSTCXX $@ | |
| 65 | cmd_plugin_cxx_o_c = $(HOSTCXX) $(plugin_cxxflags) -c -o $@ $< | |
| 66 | ||
| 67 | $(plugin-objs): $(obj)/%.o: $(src)/%.c FORCE | |
| 68 | $(call if_changed_dep,plugin_cxx_o_c) |