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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)") | |
4 | ||
5 | SANCOV_PLUGIN := -fplugin=$(objtree)/scripts/gcc-plugins/sancov_plugin.so | |
6 | ||
7 | gcc-plugin-$(CONFIG_GCC_PLUGIN_CYC_COMPLEXITY) += cyc_complexity_plugin.so | |
8 | ||
9 | ifdef CONFIG_GCC_PLUGIN_SANCOV | |
10 | ifeq ($(CFLAGS_KCOV),) | |
11 | # It is needed because of the gcc-plugin.sh and gcc version checks. | |
12 | gcc-plugin-$(CONFIG_GCC_PLUGIN_SANCOV) += sancov_plugin.so | |
13 | ||
14 | ifneq ($(PLUGINCC),) | |
15 | CFLAGS_KCOV := $(SANCOV_PLUGIN) | |
16 | else | |
17 | $(warning warning: cannot use CONFIG_KCOV: -fsanitize-coverage=trace-pc is not supported by compiler) | |
18 | endif | |
19 | endif | |
20 | endif | |
21 | ||
22 | GCC_PLUGINS_CFLAGS := $(strip $(addprefix -fplugin=$(objtree)/scripts/gcc-plugins/, $(gcc-plugin-y)) $(gcc-plugin-cflags-y)) | |
23 | ||
24 | export PLUGINCC GCC_PLUGINS_CFLAGS GCC_PLUGIN GCC_PLUGIN_SUBDIR SANCOV_PLUGIN | |
25 | ||
26 | ifneq ($(PLUGINCC),) | |
27 | # SANCOV_PLUGIN can be only in CFLAGS_KCOV because avoid duplication. | |
28 | GCC_PLUGINS_CFLAGS := $(filter-out $(SANCOV_PLUGIN), $(GCC_PLUGINS_CFLAGS)) | |
29 | endif | |
30 | ||
31 | KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) | |
32 | GCC_PLUGIN := $(gcc-plugin-y) | |
33 | GCC_PLUGIN_SUBDIR := $(gcc-plugin-subdir-y) | |
34 | endif | |
35 | ||
36 | # If plugins aren't supported, abort the build before hard-to-read compiler | |
37 | # errors start getting spewed by the main build. | |
38 | PHONY += gcc-plugins-check | |
39 | gcc-plugins-check: FORCE | |
40 | ifdef CONFIG_GCC_PLUGINS | |
41 | ifeq ($(PLUGINCC),) | |
42 | ifneq ($(GCC_PLUGINS_CFLAGS),) | |
43 | ifeq ($(call cc-ifversion, -ge, 0405, y), y) | |
44 | $(Q)$(srctree)/scripts/gcc-plugin.sh --show-error "$(__PLUGINCC)" "$(HOSTCXX)" "$(CC)" || true | |
45 | @echo "Cannot use CONFIG_GCC_PLUGINS: your gcc installation does not support plugins, perhaps the necessary headers are missing?" >&2 && exit 1 | |
46 | else | |
47 | @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 | |
48 | endif | |
49 | endif | |
50 | endif | |
51 | endif | |
52 | @: | |
53 | ||
54 | # Actually do the build, if requested. | |
55 | PHONY += gcc-plugins | |
56 | gcc-plugins: scripts_basic gcc-plugins-check | |
57 | ifdef CONFIG_GCC_PLUGINS | |
58 | $(Q)$(MAKE) $(build)=scripts/gcc-plugins | |
59 | endif | |
60 | @: |