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LEON3 demo for Rust

This is a demo of Rust on the LEON3. It runs in the Gaisler TSIM3 and requires nightly rust so we can build the libcore library for SPARC (which is not shipped by rustup).

Requires Rust nightly 2023-07-18 or newer.

$ cargo +nightly run
   Compiling sparc-demo-rust v0.1.0 (/work/sparc-demo-rust)
    Finished dev [unoptimized + debuginfo] target(s) in 3.44s
     Running `tsim-leon3 -c sim-commands.txt target/sparc-unknown-none/debug/sparc-demo-rust`

 TSIM3 LEON3 SPARC simulator, version 3.1.9 (evaluation version)

 Copyright (C) 2023, Frontgrade Gaisler - all rights reserved.
 This software may only be used with a valid license.
 For latest updates, go to https://www.gaisler.com/
 Comments or bug-reports to [email protected]

 This TSIM evaluation version will expire 2023-11-28

Number of CPUs: 2
system frequency: 50.000 MHz
icache: 1 * 4 KiB, 16 bytes/line (4 KiB total)
dcache: 1 * 4 KiB, 16 bytes/line (4 KiB total)
Allocated 8192 KiB SRAM memory, in 1 bank at 0x40000000
Allocated 32 MiB SDRAM memory, in 1 bank at 0x60000000
Allocated 8192 KiB ROM memory at 0x00000000
section: .text, addr: 0x40000000, size: 104400 bytes
section: .rodata, addr: 0x400197d0, size: 15616 bytes
section: .data, addr: 0x4001d4d0, size: 1176 bytes
read 1006 symbols


  Initializing and starting from 0x40000000
Hello, this is Rust!
     0  1  2  3  4  5  6  7  8  9 
 0:  0  0  0  0  0  0  0  0  0  0 
 1:  0  1  2  3  4  5  6  7  8  9 
 2:  0  2  4  6  8 10 12 14 16 18 
 3:  0  3  6  9 12 15 18 21 24 27 
 4:  0  4  8 12 16 20 24 28 32 36 
 5:  0  5 10 15 20 25 30 35 40 45 
 6:  0  6 12 18 24 30 36 42 48 54 
 7:  0  7 14 21 28 35 42 49 56 63 
 8:  0  8 16 24 32 40 48 56 64 72 
 9:  0  9 18 27 36 45 54 63 72 81 
PANIC: PanicInfo { payload: Any { .. }, message: Some(I am a panic), location: Location { file: "src/main.rs", line: 56, col: 5 }, can_unwind: true, force_no_backtrace: false }

  Program exited normally on CPU 0.

You should have sparc-gaisler-elf-clang available in your PATH - pick another toolchain using the .cargo/config.toml file.

Alternate CPUs

We use the .cargo/config.toml file to set the CPU to leon3 and the BCC BSP to leon3. Feel free to pick an alternative.

See https://doc.rust-lang.org/nightly/rustc/platform-support/sparc-unknown-none-elf.html for more information about the target.

Licence

Copyright (c) Ferrous Systems, 2023

Licensed under either MIT or Apache-2.0 at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you shall be licensed as above, without any additional terms or conditions.