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[198.145.64.163]) by smtp.gmail.com with ESMTPSA id z5-20020a62d105000000b0053bf1f90188sm4027347pfg.176.2022.10.01.08.58.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 01 Oct 2022 08:58:48 -0700 (PDT) Date: Sat, 1 Oct 2022 08:58:47 -0700 From: Kees Cook To: Linus Torvalds Cc: linux-kernel@vger.kernel.org, Adam Bratschi-Kaye , Alex Gaynor , Antonio Terceiro , =?iso-8859-1?Q?Bj=F6rn?= Roy Baron , Boqun Feng , Boris-Chengbiao Zhou , Daniel Xu , Dariusz Sosnowski , David Gow , Douglas Su , Finn Behrens , Fox Chen , Gary Guo , Geert Stappers , Geoffrey Thomas , Greg Kroah-Hartman , Jiapeng Chong , Joe Perches , John Baublitz , Julian Merkle , Kees Cook , =?iso-8859-1?B?TOlv?= Lanteri Thauvin , Maciej Falkowski , Martin Rodriguez Reboredo , Matthew Bakhtiari , Matthew Wilcox , Michael Ellerman , Miguel Cano , Miguel Ojeda , Milan Landaverde , Morgan Bartlett , =?iso-8859-1?Q?N=E1ndor_Istv=E1n_Kr=E1cser?= , Nick Desaulniers , Niklas Mohrin , Petr Mladek , Sumera Priyadarsini , Sven Van Asbroeck , Tiago Lam , Viktor Garske , Wedson Almeida Filho , Wei Liu , Wu XiangCheng , Yuki Okushi Subject: [GIT PULL] Rust introduction for v6.1-rc1 Message-ID: <202210010816.1317F2C@keescook> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Linus, Please pull the initial Rust support for v6.1-rc1. The tree has a recent base, but has fundamentally been in linux-next for a year and a half[1]. It's been updated based on feedback from the Kernel Maintainer's Summit, and to gain recent Reviewed-by: tags. Miguel is the primary maintainer, with me helping where needed/wanted. Our plan is for the tree to switch to the standard non-rebasing practice once this initial infrastructure series lands. The contents are the absolute minimum to get Rust code building in the kernel, with many more interfaces[2] (and drivers[3]) on the way. Expected conflicts are minimal: - docs-next: https://lore.kernel.org/lkml/87czbegets.fsf@meer.lwn.net/ Thanks! -Kees [1] https://lwn.net/Articles/849849/ [2] https://github.com/Rust-for-Linux/linux/commits/rust [3] NVMe: https://github.com/metaspace/rust-linux/commit/d88c3744d6cbdf11767e08bad56cbfb67c4c96d0 9p: https://github.com/wedsonaf/linux/commit/9367032607f7670de0ba1537cf09ab0f4365a338 M1 GPU: https://github.com/AsahiLinux/linux/commits/gpu/rust-wip The following changes since commit f76349cf41451c5c42a99f18a9163377e4b364ff: Linux 6.0-rc7 (2022-09-25 14:01:02 -0700) are available in the Git repository at: https://github.com/Rust-for-Linux/linux.git tags/rust-v6.1-rc1 for you to fetch changes up to 615131b8e9bcd88e2d3ef78a4954ff4abfbb1fb7: MAINTAINERS: Rust (2022-09-28 09:05:20 +0200) ---------------------------------------------------------------- Rust introduction for v6.1-rc1 The initial support of Rust-for-Linux comes in roughly 4 areas: - Kernel internals (kallsyms expansion for Rust symbols, %pA format) - Kbuild infrastructure (Rust build rules and support scripts) - Rust crates and bindings for initial minimum viable build - Rust kernel documentation and samples Rust support has been in linux-next for a year and a half now, and the short log doesn't do justice to the number of people who have contributed both to the Linux kernel side but also to the upstream Rust side to support the kernel's needs. Thanks to these 173 people, and many more, who have been involved in all kinds of ways: Miguel Ojeda, Wedson Almeida Filho, Alex Gaynor, Boqun Feng, Gary Guo, Björn Roy Baron, Andreas Hindborg, Adam Bratschi-Kaye, Benno Lossin, Maciej Falkowski, Finn Behrens, Sven Van Asbroeck, Asahi Lina, FUJITA Tomonori, John Baublitz, Wei Liu, Geoffrey Thomas, Philip Herron, Arthur Cohen, David Faust, Antoni Boucher, Philip Li, Yujie Liu, Jonathan Corbet, Greg Kroah-Hartman, Paul E. McKenney, Josh Triplett, Kent Overstreet, David Gow, Alice Ryhl, Robin Randhawa, Kees Cook, Nick Desaulniers, Matthew Wilcox, Linus Walleij, Joe Perches, Michael Ellerman, Petr Mladek, Masahiro Yamada, Arnaldo Carvalho de Melo, Andrii Nakryiko, Konstantin Shelekhin, Rasmus Villemoes, Konstantin Ryabitsev, Stephen Rothwell, Andy Shevchenko, Sergey Senozhatsky, John Paul Adrian Glaubitz, David Laight, Nathan Chancellor, Jonathan Cameron, Daniel Latypov, Shuah Khan, Brendan Higgins, Julia Lawall, Laurent Pinchart, Geert Uytterhoeven, Akira Yokosawa, Pavel Machek, David S. Miller, John Hawley, James Bottomley, Arnd Bergmann, Christian Brauner, Dan Robertson, Nicholas Piggin, Zhouyi Zhou, Elena Zannoni, Jose E. Marchesi, Leon Romanovsky, Will Deacon, Richard Weinberger, Randy Dunlap, Paolo Bonzini, Roland Dreier, Mark Brown, Sasha Levin, Ted Ts'o, Steven Rostedt, Jarkko Sakkinen, Michal Kubecek, Marco Elver, Al Viro, Keith Busch, Johannes Berg, Jan Kara, David Sterba, Connor Kuehl, Andy Lutomirski, Andrew Lunn, Alexandre Belloni, Peter Zijlstra, Russell King, Eric W. Biederman, Willy Tarreau, Christoph Hellwig, Emilio Cobos Álvarez, Christian Poveda, Mark Rousskov, John Ericson, TennyZhuang, Xuanwo, Daniel Paoliello, Manish Goregaokar, comex, Josh Stone, Stephan Sokolow, Philipp Krones, Guillaume Gomez, Joshua Nelson, Mats Larsen, Marc Poulhičs, Samantha Miller, Esteban Blanc, Martin Schmidt, Martin Rodriguez Reboredo, Daniel Xu, Viresh Kumar, Bartosz Golaszewski, Vegard Nossum, Milan Landaverde, Dariusz Sosnowski, Yuki Okushi, Matthew Bakhtiari, Wu XiangCheng, Tiago Lam, Boris-Chengbiao Zhou, Sumera Priyadarsini, Viktor Garske, Niklas Mohrin, Nándor István Krácser, Morgan Bartlett, Miguel Cano, Léo Lanteri Thauvin, Julian Merkle, Andreas Reindl, Jiapeng Chong, Fox Chen, Douglas Su, Antonio Terceiro, SeongJae Park, Sergio González Collado, Ngo Iok Ui (Wu Yu Wei), Joshua Abraham, Milan, Daniel Kolsoi, ahomescu, Manas, Luis Gerhorst, Li Hongyu, Philipp Gesang, Russell Currey, Jalil David Salamé Messina, Jon Olson, Raghvender, Angelos, Kaviraj Kanagaraj, Paul Römer, Sladyn Nunes, Mauro Baladés, Hsiang-Cheng Yang, Abhik Jain, Hongyu Li, Sean Nash, Yuheng Su, Peng Hao, Anhad Singh, Roel Kluin, Sara Saa, Geert Stappers, Garrett LeSage, IFo Hancroft, and Linus Torvalds. ---------------------------------------------------------------- Boqun Feng (2): kallsyms: use `ARRAY_SIZE` instead of hardcoded size kallsyms: avoid hardcoding buffer size Daniel Xu (1): scripts: add `is_rust_module.sh` Gary Guo (1): vsprintf: add new `%pA` format specifier Miguel Ojeda (22): kallsyms: add static relationship between `KSYM_NAME_LEN{,_BUFFER}` kallsyms: support "big" kernel symbols kallsyms: increase maximum kernel symbol length to 512 rust: add C helpers rust: import upstream `alloc` crate rust: adapt `alloc` crate to the kernel rust: add `compiler_builtins` crate rust: add `macros` crate rust: add `bindings` crate rust: export generated symbols scripts: checkpatch: diagnose uses of `%pA` in the C side as errors scripts: checkpatch: enable language-independent checks for Rust scripts: decode_stacktrace: demangle Rust symbols scripts: add `generate_rust_analyzer.py` scripts: add `generate_rust_target.rs` scripts: add `rust_is_available.sh` rust: add `.rustfmt.toml` Kbuild: add Rust support docs: add Rust documentation x86: enable initial Rust support samples: add first Rust examples MAINTAINERS: Rust Wedson Almeida Filho (1): rust: add `kernel` crate .gitignore | 6 + .rustfmt.toml | 12 + Documentation/core-api/printk-formats.rst | 10 + Documentation/doc-guide/kernel-doc.rst | 3 + Documentation/index.rst | 1 + Documentation/kbuild/kbuild.rst | 17 + Documentation/kbuild/makefiles.rst | 50 +- Documentation/process/changes.rst | 41 + Documentation/rust/arch-support.rst | 19 + Documentation/rust/coding-guidelines.rst | 216 ++ Documentation/rust/general-information.rst | 79 + Documentation/rust/index.rst | 22 + Documentation/rust/quick-start.rst | 232 ++ MAINTAINERS | 18 + Makefile | 172 +- arch/Kconfig | 6 + arch/x86/Kconfig | 1 + arch/x86/Makefile | 10 + include/linux/compiler_types.h | 6 +- include/linux/kallsyms.h | 2 +- init/Kconfig | 46 +- kernel/configs/rust.config | 1 + kernel/kallsyms.c | 26 +- kernel/livepatch/core.c | 4 +- lib/Kconfig.debug | 34 + lib/vsprintf.c | 13 + rust/.gitignore | 8 + rust/Makefile | 381 ++++ rust/alloc/README.md | 33 + rust/alloc/alloc.rs | 440 ++++ rust/alloc/borrow.rs | 498 ++++ rust/alloc/boxed.rs | 2028 +++++++++++++++++ rust/alloc/collections/mod.rs | 156 ++ rust/alloc/lib.rs | 244 ++ rust/alloc/raw_vec.rs | 527 +++++ rust/alloc/slice.rs | 1204 ++++++++++ rust/alloc/vec/drain.rs | 186 ++ rust/alloc/vec/drain_filter.rs | 145 ++ rust/alloc/vec/into_iter.rs | 366 +++ rust/alloc/vec/is_zero.rs | 120 + rust/alloc/vec/mod.rs | 3140 ++++++++++++++++++++++++++ rust/alloc/vec/partial_eq.rs | 49 + rust/bindgen_parameters | 21 + rust/bindings/bindings_helper.h | 13 + rust/bindings/lib.rs | 53 + rust/compiler_builtins.rs | 63 + rust/exports.c | 21 + rust/helpers.c | 51 + rust/kernel/allocator.rs | 64 + rust/kernel/error.rs | 59 + rust/kernel/lib.rs | 78 + rust/kernel/prelude.rs | 20 + rust/kernel/print.rs | 198 ++ rust/kernel/str.rs | 72 + rust/macros/helpers.rs | 51 + rust/macros/lib.rs | 72 + rust/macros/module.rs | 282 +++ samples/Kconfig | 2 + samples/Makefile | 1 + samples/rust/Kconfig | 30 + samples/rust/Makefile | 5 + samples/rust/hostprogs/.gitignore | 3 + samples/rust/hostprogs/Makefile | 5 + samples/rust/hostprogs/a.rs | 7 + samples/rust/hostprogs/b.rs | 5 + samples/rust/hostprogs/single.rs | 12 + samples/rust/rust_minimal.rs | 38 + scripts/.gitignore | 1 + scripts/Kconfig.include | 6 +- scripts/Makefile | 3 + scripts/Makefile.build | 60 + scripts/Makefile.debug | 8 + scripts/Makefile.host | 34 +- scripts/Makefile.lib | 12 + scripts/Makefile.modfinal | 8 +- scripts/cc-version.sh | 12 +- scripts/checkpatch.pl | 12 +- scripts/decode_stacktrace.sh | 14 + scripts/generate_rust_analyzer.py | 135 ++ scripts/generate_rust_target.rs | 182 ++ scripts/is_rust_module.sh | 16 + scripts/kallsyms.c | 53 +- scripts/kconfig/confdata.c | 75 + scripts/min-tool-version.sh | 6 + scripts/rust_is_available.sh | 160 ++ scripts/rust_is_available_bindgen_libclang.h | 2 + tools/include/linux/kallsyms.h | 2 +- tools/lib/perf/include/perf/event.h | 2 +- tools/lib/symbol/kallsyms.h | 2 +- 89 files changed, 12552 insertions(+), 51 deletions(-) create mode 100644 .rustfmt.toml create mode 100644 Documentation/rust/arch-support.rst create mode 100644 Documentation/rust/coding-guidelines.rst create mode 100644 Documentation/rust/general-information.rst create mode 100644 Documentation/rust/index.rst create mode 100644 Documentation/rust/quick-start.rst create mode 100644 kernel/configs/rust.config create mode 100644 rust/.gitignore create mode 100644 rust/Makefile create mode 100644 rust/alloc/README.md create mode 100644 rust/alloc/alloc.rs create mode 100644 rust/alloc/borrow.rs create mode 100644 rust/alloc/boxed.rs create mode 100644 rust/alloc/collections/mod.rs create mode 100644 rust/alloc/lib.rs create mode 100644 rust/alloc/raw_vec.rs create mode 100644 rust/alloc/slice.rs create mode 100644 rust/alloc/vec/drain.rs create mode 100644 rust/alloc/vec/drain_filter.rs create mode 100644 rust/alloc/vec/into_iter.rs create mode 100644 rust/alloc/vec/is_zero.rs create mode 100644 rust/alloc/vec/mod.rs create mode 100644 rust/alloc/vec/partial_eq.rs create mode 100644 rust/bindgen_parameters create mode 100644 rust/bindings/bindings_helper.h create mode 100644 rust/bindings/lib.rs create mode 100644 rust/compiler_builtins.rs create mode 100644 rust/exports.c create mode 100644 rust/helpers.c create mode 100644 rust/kernel/allocator.rs create mode 100644 rust/kernel/error.rs create mode 100644 rust/kernel/lib.rs create mode 100644 rust/kernel/prelude.rs create mode 100644 rust/kernel/print.rs create mode 100644 rust/kernel/str.rs create mode 100644 rust/macros/helpers.rs create mode 100644 rust/macros/lib.rs create mode 100644 rust/macros/module.rs create mode 100644 samples/rust/Kconfig create mode 100644 samples/rust/Makefile create mode 100644 samples/rust/hostprogs/.gitignore create mode 100644 samples/rust/hostprogs/Makefile create mode 100644 samples/rust/hostprogs/a.rs create mode 100644 samples/rust/hostprogs/b.rs create mode 100644 samples/rust/hostprogs/single.rs create mode 100644 samples/rust/rust_minimal.rs create mode 100755 scripts/generate_rust_analyzer.py create mode 100644 scripts/generate_rust_target.rs create mode 100755 scripts/is_rust_module.sh create mode 100755 scripts/rust_is_available.sh create mode 100644 scripts/rust_is_available_bindgen_libclang.h -- Kees Cook