1 # SPDX-License-Identifier: GPL-2.0 !! 1 ifdef CONFIG_GCC_PLUGINS
2 !! 2 __PLUGINCC := $(call cc-ifversion, -ge, 0408, $(HOSTCXX), $(HOSTCC))
3 gcc-plugin-$(CONFIG_GCC_PLUGIN_LATENT_ENTROPY) !! 3 PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(__PLUGINCC)" "$(HOSTCXX)" "$(CC)")
4 gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_LATENT_E !! 4
5 += -DLATENT_ENTROPY_PLUGIN !! 5 SANCOV_PLUGIN := -fplugin=$(objtree)/scripts/gcc-plugins/sancov_plugin.so
6 ifdef CONFIG_GCC_PLUGIN_LATENT_ENTROPY !! 6
7 DISABLE_LATENT_ENTROPY_PLUGIN += -fplugin- !! 7 gcc-plugin-$(CONFIG_GCC_PLUGIN_CYC_COMPLEXITY) += cyc_complexity_plugin.so
>> 8
>> 9 gcc-plugin-$(CONFIG_GCC_PLUGIN_LATENT_ENTROPY) += latent_entropy_plugin.so
>> 10 gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_LATENT_ENTROPY) += -DLATENT_ENTROPY_PLUGIN
>> 11 ifdef CONFIG_PAX_LATENT_ENTROPY
>> 12 DISABLE_LATENT_ENTROPY_PLUGIN += -fplugin-arg-latent_entropy_plugin-disable
>> 13 endif
>> 14
>> 15 ifdef CONFIG_GCC_PLUGIN_SANCOV
>> 16 ifeq ($(CFLAGS_KCOV),)
>> 17 # It is needed because of the gcc-plugin.sh and gcc version checks.
>> 18 gcc-plugin-$(CONFIG_GCC_PLUGIN_SANCOV) += sancov_plugin.so
>> 19
>> 20 ifneq ($(PLUGINCC),)
>> 21 CFLAGS_KCOV := $(SANCOV_PLUGIN)
>> 22 else
>> 23 $(warning warning: cannot use CONFIG_KCOV: -fsanitize-coverage=trace-pc is not supported by compiler)
>> 24 endif
>> 25 endif
>> 26 endif
>> 27
>> 28 GCC_PLUGINS_CFLAGS := $(strip $(addprefix -fplugin=$(objtree)/scripts/gcc-plugins/, $(gcc-plugin-y)) $(gcc-plugin-cflags-y))
>> 29
>> 30 export PLUGINCC GCC_PLUGINS_CFLAGS GCC_PLUGIN GCC_PLUGIN_SUBDIR
>> 31 export SANCOV_PLUGIN DISABLE_LATENT_ENTROPY_PLUGIN
>> 32
>> 33 ifneq ($(PLUGINCC),)
>> 34 # SANCOV_PLUGIN can be only in CFLAGS_KCOV because avoid duplication.
>> 35 GCC_PLUGINS_CFLAGS := $(filter-out $(SANCOV_PLUGIN), $(GCC_PLUGINS_CFLAGS))
>> 36 endif
>> 37
>> 38 KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
>> 39 GCC_PLUGIN := $(gcc-plugin-y)
>> 40 GCC_PLUGIN_SUBDIR := $(gcc-plugin-subdir-y)
8 endif 41 endif
9 export DISABLE_LATENT_ENTROPY_PLUGIN <<
10 42
11 gcc-plugin-$(CONFIG_GCC_PLUGIN_STRUCTLEAK) !! 43 # If plugins aren't supported, abort the build before hard-to-read compiler
12 gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STRUCTLE !! 44 # errors start getting spewed by the main build.
13 += -fplugin-arg-structleak_plu !! 45 PHONY += gcc-plugins-check
14 gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STRUCTLE !! 46 gcc-plugins-check: FORCE
15 += -fplugin-arg-structleak_plu !! 47 ifdef CONFIG_GCC_PLUGINS
16 gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STRUCTLE !! 48 ifeq ($(PLUGINCC),)
17 += -fplugin-arg-structleak_plu !! 49 ifneq ($(GCC_PLUGINS_CFLAGS),)
18 ifdef CONFIG_GCC_PLUGIN_STRUCTLEAK !! 50 ifeq ($(call cc-ifversion, -ge, 0405, y), y)
19 DISABLE_STRUCTLEAK_PLUGIN += -fplugin-arg- !! 51 $(Q)$(srctree)/scripts/gcc-plugin.sh --show-error "$(__PLUGINCC)" "$(HOSTCXX)" "$(CC)" || true
20 endif !! 52 @echo "Cannot use CONFIG_GCC_PLUGINS: your gcc installation does not support plugins, perhaps the necessary headers are missing?" >&2 && exit 1
21 export DISABLE_STRUCTLEAK_PLUGIN !! 53 else
22 gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STRUCTLE !! 54 @echo "Cannot use CONFIG_GCC_PLUGINS: your gcc version does not support plugins, you should upgrade it to at least gcc 4.5" >&2 && exit 1
23 += -DSTRUCTLEAK_PLUGIN !! 55 endif
24 !! 56 endif
25 gcc-plugin-$(CONFIG_GCC_PLUGIN_STACKLEAK) !! 57 endif
26 gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STACKLEA <<
27 += -DSTACKLEAK_PLUGIN <<
28 gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STACKLEA <<
29 += -fplugin-arg-stackleak_plug <<
30 gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STACKLEA <<
31 += -fplugin-arg-stackleak_plug <<
32 gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STACKLEA <<
33 += -fplugin-arg-stackleak_plug <<
34 ifdef CONFIG_GCC_PLUGIN_STACKLEAK <<
35 DISABLE_STACKLEAK_PLUGIN += -fplugin-arg-s <<
36 endif 58 endif
37 export DISABLE_STACKLEAK_PLUGIN !! 59 @:
38 60
39 gcc-plugin-$(CONFIG_GCC_PLUGIN_ARM_SSP_PER_TAS !! 61 # Actually do the build, if requested.
40 ifdef CONFIG_GCC_PLUGIN_ARM_SSP_PER_TASK !! 62 PHONY += gcc-plugins
41 DISABLE_ARM_SSP_PER_TASK_PLUGIN += -fplugi !! 63 gcc-plugins: scripts_basic gcc-plugins-check
>> 64 ifdef CONFIG_GCC_PLUGINS
>> 65 $(Q)$(MAKE) $(build)=scripts/gcc-plugins
42 endif 66 endif
43 export DISABLE_ARM_SSP_PER_TASK_PLUGIN !! 67 @:
44 <<
45 # All the plugin CFLAGS are collected here in <<
46 # filter them out of the KBUILD_CFLAGS. <<
47 GCC_PLUGINS_CFLAGS := $(strip $(addprefix -fpl <<
48 export GCC_PLUGINS_CFLAGS <<
49 <<
50 # Add the flags to the build! <<
51 KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) <<
52 <<
53 # Some plugins are enabled outside of this Mak <<
54 # be included in GCC_PLUGIN so they can get bu <<
55 gcc-plugin-external-$(CONFIG_GCC_PLUGIN_SANCOV <<
56 += sancov_plugin.so <<
57 gcc-plugin-external-$(CONFIG_GCC_PLUGIN_RANDST <<
58 += randomize_layout_plugin.so <<
59 <<
60 # All enabled GCC plugins are collected here f <<
61 # scripts/gcc-scripts/Makefile. <<
62 GCC_PLUGIN := $(gcc-plugin-y) $(gcc-plugin-ext <<
63 export GCC_PLUGIN <<
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