1 ifdef CONFIG_GCC_PLUGINS
2 __PLUGINCC := $(call cc-ifversion, -ge, 0408, $(HOSTCXX), $(HOSTCC))
3 PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(__PLUGINCC)" "$(HOSTCXX)" "$(CC)")
5 SANCOV_PLUGIN := -fplugin=$(objtree)/scripts/gcc-plugins/sancov_plugin.so
7 gcc-plugin-$(CONFIG_GCC_PLUGIN_CYC_COMPLEXITY) += cyc_complexity_plugin.so
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
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
21 CFLAGS_KCOV := $(SANCOV_PLUGIN)
23 $(warning warning: cannot use CONFIG_KCOV: -fsanitize-coverage=trace-pc is not supported by compiler)
28 gcc-plugin-$(CONFIG_GCC_PLUGIN_STRUCTLEAK) += structleak_plugin.so
29 gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STRUCTLEAK_VERBOSE) += -fplugin-arg-structleak_plugin-verbose
30 gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STRUCTLEAK) += -DSTRUCTLEAK_PLUGIN
32 GCC_PLUGINS_CFLAGS := $(strip $(addprefix -fplugin=$(objtree)/scripts/gcc-plugins/, $(gcc-plugin-y)) $(gcc-plugin-cflags-y))
34 export PLUGINCC GCC_PLUGINS_CFLAGS GCC_PLUGIN GCC_PLUGIN_SUBDIR
35 export SANCOV_PLUGIN DISABLE_LATENT_ENTROPY_PLUGIN
38 # SANCOV_PLUGIN can be only in CFLAGS_KCOV because avoid duplication.
39 GCC_PLUGINS_CFLAGS := $(filter-out $(SANCOV_PLUGIN), $(GCC_PLUGINS_CFLAGS))
42 KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
43 GCC_PLUGIN := $(gcc-plugin-y)
44 GCC_PLUGIN_SUBDIR := $(gcc-plugin-subdir-y)
47 # If plugins aren't supported, abort the build before hard-to-read compiler
48 # errors start getting spewed by the main build.
49 PHONY += gcc-plugins-check
50 gcc-plugins-check: FORCE
51 ifdef CONFIG_GCC_PLUGINS
53 ifneq ($(GCC_PLUGINS_CFLAGS),)
54 ifeq ($(call cc-ifversion, -ge, 0405, y), y)
55 $(Q)$(srctree)/scripts/gcc-plugin.sh --show-error "$(__PLUGINCC)" "$(HOSTCXX)" "$(CC)" || true
56 @echo "Cannot use CONFIG_GCC_PLUGINS: your gcc installation does not support plugins, perhaps the necessary headers are missing?" >&2 && exit 1
58 @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
65 # Actually do the build, if requested.
67 gcc-plugins: scripts_basic gcc-plugins-check
68 ifdef CONFIG_GCC_PLUGINS
69 $(Q)$(MAKE) $(build)=scripts/gcc-plugins