Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1# SPDX-License-Identifier: GPL-2.0-only
2config HAVE_GCC_PLUGINS
3 bool
4 help
5 An arch should select this symbol if it supports building with
6 GCC plugins.
7
8menuconfig GCC_PLUGINS
9 bool "GCC plugins"
10 depends on HAVE_GCC_PLUGINS
11 depends on CC_IS_GCC
12 depends on $(success,test -e $(shell,$(CC) -print-file-name=plugin)/include/plugin-version.h)
13 default y
14 help
15 GCC plugins are loadable modules that provide extra features to the
16 compiler. They are useful for runtime instrumentation and static analysis.
17
18 See Documentation/kbuild/gcc-plugins.rst for details.
19
20if GCC_PLUGINS
21
22config GCC_PLUGIN_LATENT_ENTROPY
23 bool "Generate some entropy during boot and runtime"
24 help
25 By saying Y here the kernel will instrument some kernel code to
26 extract some entropy from both original and artificially created
27 program state. This will help especially embedded systems where
28 there is little 'natural' source of entropy normally. The cost
29 is some slowdown of the boot process (about 0.5%) and fork and
30 irq processing.
31
32 Note that entropy extracted this way is not cryptographically
33 secure!
34
35 This plugin was ported from grsecurity/PaX. More information at:
36 * https://grsecurity.net/
37 * https://pax.grsecurity.net/
38
39endif