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authorConor Dooley <conor.dooley@microchip.com>2024-04-04 17:17:02 +0300
committerMiguel Ojeda <ojeda@kernel.org>2024-04-16 22:13:43 +0300
commit8933cf4651e02853ca679be7b2d978dfcdcc5e0c (patch)
treeae19d711e37033f0a96ee8b40bca4434391c6194 /init
parent7044dcff8301b29269016ebd17df27c4736140d2 (diff)
downloadlinux-8933cf4651e02853ca679be7b2d978dfcdcc5e0c.tar.xz
rust: make mutually exclusive with CFI_CLANG
On RISC-V and arm64, and presumably x86, if CFI_CLANG is enabled, loading a rust module will trigger a kernel panic. Support for sanitisers, including kcfi (CFI_CLANG), is in the works, but for now they're nightly-only options in rustc. Make RUST depend on !CFI_CLANG to prevent configuring a kernel without symmetrical support for kfi. [ Matthew Maurer writes [1]: This patch is fine by me - the last patch needed for KCFI to be functional in Rust just landed upstream last night, so we should revisit this (in the form of enabling it) once we move to `rustc-1.79.0` or later. Ramon de C Valle also gave feedback [2] on the status of KCFI for Rust and created a tracking issue [3] in upstream Rust. - Miguel ] Fixes: 2f7ab1267dc9 ("Kbuild: add Rust support") Cc: stable@vger.kernel.org Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Acked-by: Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/rust-for-linux/CAGSQo024u1gHJgzsO38Xg3c4or+JupoPABQx_+0BLEpPg0cOEA@mail.gmail.com/ [1] Link: https://lore.kernel.org/rust-for-linux/CAOcBZOS2kPyH0Dm7Fuh4GC3=v7nZhyzBj_-dKu3PfAnrHZvaxg@mail.gmail.com/ [2] Link: https://github.com/rust-lang/rust/issues/123479 [3] Link: https://lore.kernel.org/r/20240404-providing-emporium-e652e359c711@spud [ Added feedback from the list, links, and used Cc for the tag. ] Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Diffstat (limited to 'init')
-rw-r--r--init/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig
index b9a336a3d7d8..664bedb9a71f 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1899,6 +1899,7 @@ config RUST
bool "Rust support"
depends on HAVE_RUST
depends on RUST_IS_AVAILABLE
+ depends on !CFI_CLANG
depends on !MODVERSIONS
depends on !GCC_PLUGINS
depends on !RANDSTRUCT