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gcc-plugins: Add support for plugin subdirectories

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This adds support for building more complex gcc plugins that live in a
subdirectory instead of just in a single source file.

Reported-by: PaX Team <pageexec@freemail.hu>
Signed-off-by: Emese Revfy <re.emese@gmail.com>
[kees: clarified commit message]
Signed-off-by: Kees Cook <keescook@chromium.org>
This commit is contained in:
Emese Revfy
2016-06-26 17:38:20 +02:00
committed by Kees Cook
parent 7040c83bfb
commit caefd8c9a9
2 changed files with 8 additions and 4 deletions
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3
scripts/Makefile.gcc-plugins
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@@ -21,7 +21,7 @@ ifdef CONFIG_GCC_PLUGINS
GCC_PLUGINS_CFLAGS := $(strip $(addprefix -fplugin=$(objtree)/scripts/gcc-plugins/, $(gcc-plugin-y)) $(gcc-plugin-cflags-y))
export PLUGINCC GCC_PLUGINS_CFLAGS GCC_PLUGIN SANCOV_PLUGIN
export PLUGINCC GCC_PLUGINS_CFLAGS GCC_PLUGIN GCC_PLUGIN_SUBDIR SANCOV_PLUGIN
ifneq ($(PLUGINCC),)
# SANCOV_PLUGIN can be only in CFLAGS_KCOV because avoid duplication.
@@ -30,6 +30,7 @@ ifdef CONFIG_GCC_PLUGINS
KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
GCC_PLUGIN := $(gcc-plugin-y)
GCC_PLUGIN_SUBDIR := $(gcc-plugin-subdir-y)
endif
# If plugins aren't supported, abort the build before hard-to-read compiler