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-rw-r--r--scripts/gcc-plugins/Kconfig53
1 files changed, 53 insertions, 0 deletions
diff --git a/scripts/gcc-plugins/Kconfig b/scripts/gcc-plugins/Kconfig
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index 000000000..e383cda05
--- /dev/null
+++ b/scripts/gcc-plugins/Kconfig
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+# SPDX-License-Identifier: GPL-2.0-only
+config HAVE_GCC_PLUGINS
+ bool
+ help
+ An arch should select this symbol if it supports building with
+ GCC plugins.
+
+menuconfig GCC_PLUGINS
+ bool "GCC plugins"
+ depends on HAVE_GCC_PLUGINS
+ depends on CC_IS_GCC
+ depends on $(success,test -e $(shell,$(CC) -print-file-name=plugin)/include/plugin-version.h)
+ default y
+ help
+ GCC plugins are loadable modules that provide extra features to the
+ compiler. They are useful for runtime instrumentation and static analysis.
+
+ See Documentation/kbuild/gcc-plugins.rst for details.
+
+if GCC_PLUGINS
+
+config GCC_PLUGIN_SANCOV
+ bool
+ # Plugin can be removed once the kernel only supports GCC 6+
+ depends on !CC_HAS_SANCOV_TRACE_PC
+ help
+ This plugin inserts a __sanitizer_cov_trace_pc() call at the start of
+ basic blocks. It supports all gcc versions with plugin support (from
+ gcc-4.5 on). It is based on the commit "Add fuzzing coverage support"
+ by Dmitry Vyukov <dvyukov@google.com>.
+
+config GCC_PLUGIN_LATENT_ENTROPY
+ bool "Generate some entropy during boot and runtime"
+ help
+ By saying Y here the kernel will instrument some kernel code to
+ extract some entropy from both original and artificially created
+ program state. This will help especially embedded systems where
+ there is little 'natural' source of entropy normally. The cost
+ is some slowdown of the boot process (about 0.5%) and fork and
+ irq processing.
+
+ Note that entropy extracted this way is not cryptographically
+ secure!
+
+ This plugin was ported from grsecurity/PaX. More information at:
+ * https://grsecurity.net/
+ * https://pax.grsecurity.net/
+
+config GCC_PLUGIN_ARM_SSP_PER_TASK
+ bool
+ depends on GCC_PLUGINS && ARM
+
+endif