xref: /linux/scripts/Makefile.gcc-plugins (revision bb29b957eaaa15be33243550d9ee576c2d601669)
1# SPDX-License-Identifier: GPL-2.0
2
3gcc-plugin-$(CONFIG_GCC_PLUGIN_LATENT_ENTROPY)	+= latent_entropy_plugin.so
4gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_LATENT_ENTROPY)		\
5		+= -DLATENT_ENTROPY_PLUGIN
6ifdef CONFIG_GCC_PLUGIN_LATENT_ENTROPY
7    DISABLE_LATENT_ENTROPY_PLUGIN += -fplugin-arg-latent_entropy_plugin-disable -ULATENT_ENTROPY_PLUGIN
8endif
9export DISABLE_LATENT_ENTROPY_PLUGIN
10
11# Disable recording GCC options in debug info when building external modules to
12# avoid leaking absolute host build paths
13gcc-plugin-cflags-$(if $(KBUILD_EXTMOD),y) += -gno-record-gcc-switches
14
15# All the plugin CFLAGS are collected here in case a build target needs to
16# filter them out of the KBUILD_CFLAGS.
17GCC_PLUGINS_CFLAGS := $(strip $(addprefix -fplugin=$(objtree)/scripts/gcc-plugins/, $(gcc-plugin-y)) $(gcc-plugin-cflags-y)) -DGCC_PLUGINS
18export GCC_PLUGINS_CFLAGS
19
20# Add the flags to the build!
21KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
22
23# Some plugins are enabled outside of this Makefile, but they still need to
24# be included in GCC_PLUGIN so they can get built.
25gcc-plugin-external-$(CONFIG_GCC_PLUGIN_RANDSTRUCT)		\
26	+= randomize_layout_plugin.so
27gcc-plugin-external-$(CONFIG_GCC_PLUGIN_STACKLEAK)		\
28	+= stackleak_plugin.so
29
30# All enabled GCC plugins are collected here for building in
31# scripts/gcc-scripts/Makefile.
32GCC_PLUGIN := $(gcc-plugin-y) $(gcc-plugin-external-y)
33export GCC_PLUGIN
34