8000 rust: add debugfs abstraction by Fabo · Pull Request #1041 · Rust-for-Linux/linux · GitHub
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rust: add debugfs abstraction #1041

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1b8c8bd
rust: add improved version of `ForeignOwnable::borrow_mut`
Darksonn Jul 10, 2023
9c7c6e9
rust: Refactor the build target to allow the use of builtin targets
JamieCunliffe Oct 20, 2023
624d445
arm64: rust: Enable Rust support for AArch64
JamieCunliffe Oct 20, 2023
9ba4ccc
rust: upgrade to Rust 1.74.1
ojeda Dec 14, 2023
153f5cc
rust: file: add Rust abstraction for `struct file`
wedsonaf Dec 6, 2023
83b7658
rust: cred: add Rust abstraction for `struct cred`
wedsonaf Dec 6, 2023
492d054
rust: security: add abstraction for secctx
Darksonn Dec 6, 2023
71d8d22
rust: file: add `FileDescriptorReservation`
wedsonaf Dec 6, 2023
0a68650
rust: file: add `Kuid` wrapper
Darksonn Dec 6, 2023
7069c6e
rust: file: add `DeferredFdCloser`
Darksonn Dec 6, 2023
5cd4b93
rust: file: add abstraction for `poll_table`
Darksonn Dec 6, 2023
5f31575
x86/rust: support RETPOLINE
ojeda Oct 23, 2023
774b034
x86/rust: support SLS
ojeda Oct 23, 2023
c32a2ca
x86/rust: depend on !RETHUNK
ojeda Oct 23, 2023
033f05f
x86/rust: support RETHUNK
ojeda Oct 23, 2023
54a3c8e
rust: port file::Operations and deps from rust branch
Fabo Dec 6, 2023
a6ba5e0
rust: add debugfs wrapper
Fabo May 2, 2023
e05f067
samples: rust: add debugfs samples
Fabo May 2, 2023
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x86/rust: support RETHUNK 
When support for `-Zfunction-return` lands in Rust [1], this patch may
be used to enable RETHUNK support on top of the previous patch.

Link: rust-lang/rust#116892 [1]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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@ojeda @Fabo
ojeda authored and Fabo committed Dec 16, 2023
commit 033f05f05f5268931fdfa9c7fa47b80e37b58706
5 changes: 5 additions & 0 deletions arch/x86/Makefile
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8000 Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -24,11 +24,15 @@ RETPOLINE_CFLAGS += $(call cc-option,-mindirect-branch-cs-prefix)

ifdef CONFIG_RETHUNK
RETHUNK_CFLAGS := -mfunction-return=thunk-extern
RETHUNK_RUSTFLAGS := -Zfunction-return=thunk-extern
RETPOLINE_CFLAGS += $(RETHUNK_CFLAGS)
RETPOLINE_RUSTFLAGS += $(RETHUNK_RUSTFLAGS)
endif

export RETHUNK_CFLAGS
export RETHUNK_RUSTFLAGS
export RETPOLINE_CFLAGS
export RETPOLINE_RUSTFLAGS
export RETPOLINE_VDSO_CFLAGS

# For gcc stack alignment is specified with -mpreferred-stack-boundary,
Expand Down Expand Up @@ -195,6 +199,7 @@ KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
# Avoid indirect branches in kernel to deal with Spectre
ifdef CONFIG_RETPOLINE
KBUILD_CFLAGS += $(RETPOLINE_CFLAGS)
KBUILD_RUSTFLAGS += $(RETPOLINE_RUSTFLAGS)
# Additionally, avoid generating expensive indirect jumps which
# are subject to retpolines for small number of switch cases.
# LLVM turns off jump table generation by default when under
Expand Down
1 change: 0 additions & 1 deletion init/Kconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -1889,7 +1889,6 @@ config RUST
depends on !GCC_PLUGINS
depends on !RANDSTRUCT
depends on !DEBUG_INFO_BTF || PAHOLE_HAS_LANG_EXCLUDE
depends on !RETHUNK
select CONSTRUCTORS
help
Enables Rust support in the kernel.
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0