From: "Vincenzo Palazzo" <vincenzopalazzodev@gmail.com>
To: "Jamie Cunliffe" <Jamie.Cunliffe@arm.com>,
<linux-arm-kernel@lists.infradead.org>,
<rust-for-linux@vger.kernel.org>
Cc: "Miguel Ojeda" <ojeda@kernel.org>,
"Catalin Marinas" <catalin.marinas@arm.com>,
"Will Deacon" <will@kernel.org>, <steve.capper@arm.com>
Subject: Re: [PATCH 1/3] arm64: rust: Enable Rust support for AArch64
Date: Wed, 25 Jan 2023 20:50:57 +0100 [thread overview]
Message-ID: <CQ1J6RZOLZHV.5PUWXCVCP2LG@vincent> (raw)
In-Reply-To: <20230125163739.3798252-2-Jamie.Cunliffe@arm.com>
On Wed Jan 25, 2023 at 5:37 PM CET, Jamie Cunliffe wrote:
> From: Miguel Ojeda <ojeda@kernel.org>
>
> This commit provides the build flags for Rust for AArch64. The core Rust
> support already in the kernel does the rest.
>
> The Rust samples have been tested with this commit.
>
> [jcunliffe: Arm specific parts taken from Miguel's upstream tree]
>
> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
> Co-developed-by: Jamie Cunliffe <Jamie.Cunliffe@arm.com>
> Signed-off-by: Jamie Cunliffe <Jamie.Cunliffe@arm.com>
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
> ---
> Documentation/rust/arch-support.rst | 1 +
> arch/arm64/Kconfig | 1 +
> scripts/generate_rust_target.rs | 13 ++++++++++++-
> 3 files changed, 14 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/rust/arch-support.rst b/Documentation/rust/arch-support.rst
> index 6982b63775da..3776059a385a 100644
> --- a/Documentation/rust/arch-support.rst
> +++ b/Documentation/rust/arch-support.rst
> @@ -15,5 +15,6 @@ support corresponds to ``S`` values in the ``MAINTAINERS`` file.
> ============ ================ ==============================================
> Architecture Level of support Constraints
> ============ ================ ==============================================
> +``arm64`` Maintained None.
> ``x86`` Maintained ``x86_64`` only.
> ============ ================ ==============================================
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index 03934808b2ed..fc3800e82802 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -209,6 +209,7 @@ config ARM64
> select HAVE_FUNCTION_ARG_ACCESS_API
> select MMU_GATHER_RCU_TABLE_FREE
> select HAVE_RSEQ
> + select HAVE_RUST
> select HAVE_STACKPROTECTOR
> select HAVE_SYSCALL_TRACEPOINTS
> select HAVE_KPROBES
> diff --git a/scripts/generate_rust_target.rs b/scripts/generate_rust_target.rs
> index 3c6cbe2b278d..fe0e4ba54492 100644
> --- a/scripts/generate_rust_target.rs
> +++ b/scripts/generate_rust_target.rs
> @@ -148,7 +148,18 @@ fn main() {
> let mut ts = TargetSpec::new();
>
> // `llvm-target`s are taken from `scripts/Makefile.clang`.
> - if cfg.has("X86_64") {
> + if cfg.has("ARM64") {
> + ts.push("arch", "aarch64");
> + ts.push(
> + "data-layout",
> + "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128",
> + );
> + ts.push("disable-redzone", true);
> + ts.push("features", "+strict-align,+neon,+fp-armv8");
> + ts.push("llvm-target", "aarch64-linux-gnu");
> + ts.push("max-atomic-width", 128);
> + ts.push("target-pointer-width", "64");
> + } else if cfg.has("X86_64") {
> ts.push("arch", "x86_64");
> ts.push(
> "data-layout",
> --
> 2.30.2
next prev parent reply other threads:[~2023-01-25 19:51 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-25 16:37 [PATCH 0/3] Rust enablement for AArch64 Jamie Cunliffe
2023-01-25 16:37 ` [PATCH 1/3] arm64: rust: Enable Rust support " Jamie Cunliffe
2023-01-25 19:50 ` Vincenzo Palazzo [this message]
2023-01-25 19:56 ` Vincenzo Palazzo
2023-01-26 16:35 ` Will Deacon
2023-01-26 17:56 ` Miguel Ojeda
2023-01-31 16:19 ` Will Deacon
2023-01-31 16:49 ` Björn Roy Baron
2023-01-31 18:55 ` Miguel Ojeda
2023-04-18 15:06 ` Jamie Cunliffe
2023-01-27 14:09 ` Gary Guo
2023-05-02 13:41 ` Asahi Lina
2023-01-25 16:37 ` [PATCH 2/3] arm64: rust: Enable PAC support for Rust Jamie Cunliffe
2023-01-25 19:54 ` Vincenzo Palazzo
2023-01-25 16:37 ` [PATCH 3/3] arm64: rust: Disable neon and fp target features Jamie Cunliffe
2023-01-25 17:49 ` Miguel Ojeda
2023-01-25 19:55 ` Vincenzo Palazzo
2023-01-26 16:37 ` Will Deacon
2023-01-25 18:01 ` [PATCH 0/3] Rust enablement for AArch64 Miguel Ojeda
2023-03-07 9:32 ` Asahi Lina
2023-03-07 12:17 ` Miguel Ojeda
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