diff options
| author | Christian Schrrefl <chrisi.schrefl@gmail.com> | 2025-01-31 02:03:45 +0300 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2025-03-26 16:31:16 +0300 |
| commit | ccb8ce526807fcbd4578d6619100d8ec48769ea8 (patch) | |
| tree | ed5866eb6449aa0faca7adaef095eebcf46ae051 /scripts/generate_rust_target.rs | |
| parent | f9733aa925d99268e3c1f284d3e62e6a643dcc1d (diff) | |
| download | linux-ccb8ce526807fcbd4578d6619100d8ec48769ea8.tar.xz | |
ARM: 9441/1: rust: Enable Rust support for ARMv7
This commit allows building ARMv7 kernels with Rust support.
The rust core library expects some __eabi_... functions
that are not implemented in the kernel.
Those functions are some float operations and __aeabi_uldivmod.
For now those are implemented with define_panicking_intrinsics!.
This is based on the code by Sven Van Asbroeck from the original
rust branch and inspired by the AArch version by Jamie Cunliffe.
I have tested the rust samples and a custom simple MMIO module
on hardware (De1SoC FPGA + Arm A9 CPU).
Tested-by: Rudraksha Gupta <guptarud@gmail.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Christian Schrefl <chrisi.schrefl@gmail.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'scripts/generate_rust_target.rs')
| -rw-r--r-- | scripts/generate_rust_target.rs | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/scripts/generate_rust_target.rs b/scripts/generate_rust_target.rs index 0d00ac3723b5..f8e7fb38bf16 100644 --- a/scripts/generate_rust_target.rs +++ b/scripts/generate_rust_target.rs @@ -172,7 +172,9 @@ fn main() { let mut ts = TargetSpec::new(); // `llvm-target`s are taken from `scripts/Makefile.clang`. - if cfg.has("ARM64") { + if cfg.has("ARM") { + panic!("arm uses the builtin rustc target"); + } else if cfg.has("ARM64") { panic!("arm64 uses the builtin rustc aarch64-unknown-none target"); } else if cfg.has("RISCV") { if cfg.has("64BIT") { |