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| author | Eduard Zingerman <eddyz87@gmail.com> | 2026-09-04 01:33:23 -0700 |
|---|---|---|
| committer | Kumar Kartikeya Dwivedi <memxor@gmail.com> | 2026-09-04 12:58:04 +0200 |
| commit | 836b2fe544a5e9b5ce116622cb36fba33838c6fd (patch) | |
| tree | 95e38e4aaa0a6a78e373148b3d0af4aa2ab3d371 /scripts/Makefile.gcc-plugins | |
| download | linux-stable-836b2fe544a5e9b5ce116622cb36fba33838c6fd.tar.gz linux-stable-836b2fe544a5e9b5ce116622cb36fba33838c6fd.zip | |
selftests/bpf: Check that JMP32 pointer vs zero jumps are not predictedgrafted
Add jmp32_ptr_vs_zero_jne: the fall-through of the 32-bit compare, which
the verifier used to skip, contains an out of bounds map value access,
hence w/o the previous patch the program is accepted. See previous patch
for detailed description.
Reported-by: Nicholas Carlini <npc@anthropic.com>
Suggested-by: Nicholas Carlini <npc@anthropic.com>
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/bpf/20260904083325.2083493-6-eddyz87@gmail.com
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Diffstat (limited to 'scripts/Makefile.gcc-plugins')
| -rw-r--r-- | scripts/Makefile.gcc-plugins | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/scripts/Makefile.gcc-plugins b/scripts/Makefile.gcc-plugins new file mode 100644 index 000000000..b0e1423b0 --- /dev/null +++ b/scripts/Makefile.gcc-plugins @@ -0,0 +1,29 @@ +# SPDX-License-Identifier: GPL-2.0 + +gcc-plugin-$(CONFIG_GCC_PLUGIN_LATENT_ENTROPY) += latent_entropy_plugin.so +gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_LATENT_ENTROPY) \ + += -DLATENT_ENTROPY_PLUGIN +ifdef CONFIG_GCC_PLUGIN_LATENT_ENTROPY + DISABLE_LATENT_ENTROPY_PLUGIN += -fplugin-arg-latent_entropy_plugin-disable -ULATENT_ENTROPY_PLUGIN +endif +export DISABLE_LATENT_ENTROPY_PLUGIN + +# All the plugin CFLAGS are collected here in case a build target needs to +# filter them out of the KBUILD_CFLAGS. +GCC_PLUGINS_CFLAGS := $(strip $(addprefix -fplugin=$(objtree)/scripts/gcc-plugins/, $(gcc-plugin-y)) $(gcc-plugin-cflags-y)) -DGCC_PLUGINS +export GCC_PLUGINS_CFLAGS + +# Add the flags to the build! +KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) + +# Some plugins are enabled outside of this Makefile, but they still need to +# be included in GCC_PLUGIN so they can get built. +gcc-plugin-external-$(CONFIG_GCC_PLUGIN_RANDSTRUCT) \ + += randomize_layout_plugin.so +gcc-plugin-external-$(CONFIG_GCC_PLUGIN_STACKLEAK) \ + += stackleak_plugin.so + +# All enabled GCC plugins are collected here for building in +# scripts/gcc-scripts/Makefile. +GCC_PLUGIN := $(gcc-plugin-y) $(gcc-plugin-external-y) +export GCC_PLUGIN |