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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 <[email protected]>.
- 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
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