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@dependabot dependabot bot commented on behalf of github Jan 13, 2026

Bumps semihosting from 0.1.21 to 0.1.23.

Release notes

Sourced from semihosting's releases.

0.1.23

  • experimental::time improvements:

    • Add Instant. (c412f9f)
    • Re-export Duration TryFromFloatSecsError from core::time. (c412f9f)
    • Implement core::error::Error for SystemTimeError. (c412f9f)
  • sys improvements:

    • Add read, read_uninit, write, close, arm_compat::sys_read_orig, and arm_compat::sys_write_orig, and deprecate arm_compat::sys_read and arm_compat::sys_write. See deprecation notes of arm_compat::sys_read and arm_compat::sys_write for details. (741b9bd)
    • Add arm_compat::sys_get_cmdline_uninit, and deprecate arm_compat::sys_get_cmdline in favor of sys_get_cmdline_uninit. (9f46540, af23159)
    • Add arm_compat::syscall::ParamRegR::c_str_len. (a30da16)
    • Add mips::syscall::ParamRegR::ref_. (1a3f6a9)
  • Various optimizations:

    • Optimize process::{exit,abort}. (7d32f79)
    • Optimize experimental::env::args. (9f46540)
    • Optimize various semihosting calls on AArch64, Arm, RISC-V, Xtensa. (f65bb43)
  • Documentation improvements.

0.1.22

  • Add sys::mips::mips_plog (almost equivalent to sys::arm_compat::sys_write0). (7a3cde1)

  • Improve io::ErrorKind detection on MIPS. (911e563)

  • Enable release immutability.

  • Documentation improvements.

Changelog

Sourced from semihosting's changelog.

[0.1.23] - 2026-01-12

  • experimental::time improvements:

    • Add Instant. (c412f9f)
    • Re-export Duration TryFromFloatSecsError from core::time. (c412f9f)
    • Implement core::error::Error for SystemTimeError. (c412f9f)
  • sys improvements:

    • Add read, read_uninit, write, close, arm_compat::sys_read_orig, and arm_compat::sys_write_orig, and deprecate arm_compat::sys_read and arm_compat::sys_write. See deprecation notes of arm_compat::sys_read and arm_compat::sys_write for details. (741b9bd)
    • Add arm_compat::sys_get_cmdline_uninit, and deprecate arm_compat::sys_get_cmdline in favor of sys_get_cmdline_uninit. (9f46540, af23159)
    • Add arm_compat::syscall::ParamRegR::c_str_len. (a30da16)
    • Add mips::syscall::ParamRegR::ref_. (1a3f6a9)
  • Various optimizations:

    • Optimize process::{exit,abort}. (7d32f79)
    • Optimize experimental::env::args. (9f46540)
    • Optimize various semihosting calls on AArch64, Arm, RISC-V, Xtensa. (f65bb43)
  • Documentation improvements.

[0.1.22] - 2026-01-10

  • Add sys::mips::mips_plog (almost equivalent to sys::arm_compat::sys_write0). (7a3cde1)

  • Improve io::ErrorKind detection on MIPS. (911e563)

  • Enable release immutability.

  • Documentation improvements.

Commits
  • 823ddd4 Release 0.1.23
  • 0a25f9e Update changelog
  • 741b9bd sys: Add read/read_uninit/write/close
  • e53627d sys/arm_compat: Add note to sys_{read,write}
  • af23159 sys/arm_compat: Return &mut [u8] from sys_get_cmdline_uninit
  • 911c3df Add #[inline] to no-op flush
  • 11a3829 sys/mips: Add private {,p}read_uninit
  • 464ce02 docs: Document which semihosting calls are being used
  • f65bb43 sys/arm_compat: Clarify results of syscalls and optimize based on it
  • 8fe99f4 sys: Do not expose provenance in internal code
  • Additional commits viewable in compare view

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Bumps [semihosting](https://github.com/taiki-e/semihosting) from 0.1.21 to 0.1.23.
- [Release notes](https://github.com/taiki-e/semihosting/releases)
- [Changelog](https://github.com/taiki-e/semihosting/blob/main/CHANGELOG.md)
- [Commits](taiki-e/semihosting@v0.1.21...v0.1.23)

---
updated-dependencies:
- dependency-name: semihosting
  dependency-version: 0.1.23
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot bot added dependencies Pull requests that update a dependency file rust Pull requests that update Rust code labels Jan 13, 2026
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Benchmark Results

Details
Benchmark Current: 50bbf41 Previous: e4ac074 Performance Ratio
startup_benchmark Build Time 100.40 s 98.80 s 1.02
startup_benchmark File Size 0.82 MB 0.82 MB 1.00
Startup Time - 1 core 0.94 s (±0.04 s) 0.94 s (±0.03 s) 1.00
Startup Time - 2 cores 0.96 s (±0.03 s) 0.96 s (±0.03 s) 1.00
Startup Time - 4 cores 0.97 s (±0.03 s) 0.94 s (±0.03 s) 1.03
multithreaded_benchmark Build Time 100.10 s 100.58 s 1.00
multithreaded_benchmark File Size 0.97 MB 0.97 MB 1.00
Multithreaded Pi Efficiency - 2 Threads 90.21 % (±8.64 %) 90.29 % (±8.49 %) 1.00
Multithreaded Pi Efficiency - 4 Threads 44.54 % (±3.02 %) 43.48 % (±3.34 %) 1.02
Multithreaded Pi Efficiency - 8 Threads 26.10 % (±1.86 %) 25.20 % (±1.85 %) 1.04
micro_benchmarks Build Time 154.02 s 163.78 s 0.94
micro_benchmarks File Size 0.97 MB 0.97 MB 1.00
Scheduling time - 1 thread 98.59 ticks (±30.35 ticks) 99.58 ticks (±31.86 ticks) 0.99
Scheduling time - 2 threads 50.89 ticks (±17.69 ticks) 55.55 ticks (±16.94 ticks) 0.92
Micro - Time for syscall (getpid) 7.97 ticks (±4.28 ticks) 7.42 ticks (±3.84 ticks) 1.07
Memcpy speed - (built_in) block size 4096 61626.34 MByte/s (±44013.33 MByte/s) 60347.83 MByte/s (±42940.07 MByte/s) 1.02
Memcpy speed - (built_in) block size 1048576 25385.36 MByte/s (±21489.50 MByte/s) 25535.97 MByte/s (±21900.21 MByte/s) 0.99
Memcpy speed - (built_in) block size 16777216 22051.57 MByte/s (±18432.27 MByte/s) 21177.04 MByte/s (±17856.22 MByte/s) 1.04
Memset speed - (built_in) block size 4096 62339.53 MByte/s (±44483.11 MByte/s) 60998.96 MByte/s (±43392.21 MByte/s) 1.02
Memset speed - (built_in) block size 1048576 26175.90 MByte/s (±21994.20 MByte/s) 26412.57 MByte/s (±22471.00 MByte/s) 0.99
Memset speed - (built_in) block size 16777216 22709.81 MByte/s (±18825.14 MByte/s) 21301.98 MByte/s (±17886.43 MByte/s) 1.07
Memcpy speed - (rust) block size 4096 55513.67 MByte/s (±40456.82 MByte/s) 53768.42 MByte/s (±39033.99 MByte/s) 1.03
Memcpy speed - (rust) block size 1048576 24425.07 MByte/s (±21052.17 MByte/s) 24336.19 MByte/s (±21041.44 MByte/s) 1.00
Memcpy speed - (rust) block size 16777216 21961.09 MByte/s (±18296.65 MByte/s) 20742.62 MByte/s (±17390.56 MByte/s) 1.06
Memset speed - (rust) block size 4096 56506.13 MByte/s (±41128.50 MByte/s) 54278.77 MByte/s (±39313.56 MByte/s) 1.04
Memset speed - (rust) block size 1048576 24765.72 MByte/s (±21163.06 MByte/s) 25118.65 MByte/s (±21537.32 MByte/s) 0.99
Memset speed - (rust) block size 16777216 22581.76 MByte/s (±18669.75 MByte/s) 20922.60 MByte/s (±17443.37 MByte/s) 1.08
alloc_benchmarks Build Time 152.22 s 150.20 s 1.01
alloc_benchmarks File Size 0.89 MB 0.89 MB 1.00
Allocations - Allocation success 100.00 % 100.00 % 1
Allocations - Deallocation success 100.00 % 100.00 % 1
Allocations - Pre-fail Allocations 100.00 % 100.00 % 1
Allocations - Average Allocation time 10243.71 Ticks (±364.74 Ticks) 10243.26 Ticks (±359.99 Ticks) 1.00
Allocations - Average Allocation time (no fail) 10243.71 Ticks (±364.74 Ticks) 10243.26 Ticks (±359.99 Ticks) 1.00
Allocations - Average Deallocation time 2851.82 Ticks (±1010.75 Ticks) 2287.98 Ticks (±940.40 Ticks) 1.25
mutex_benchmark Build Time 152.75 s 152.42 s 1.00
mutex_benchmark File Size 0.97 MB 0.97 MB 1.00
Mutex Stress Test Average Time per Iteration - 1 Threads 18.58 ns (±3.67 ns) 18.06 ns (±4.09 ns) 1.03
Mutex Stress Test Average Time per Iteration - 2 Threads 20.10 ns (±2.19 ns) 19.90 ns (±2.71 ns) 1.01

This comment was automatically generated by workflow using github-action-benchmark.

@mkroening mkroening added this pull request to the merge queue Jan 15, 2026
Merged via the queue into main with commit 8eb839b Jan 15, 2026
34 of 36 checks passed
@dependabot dependabot bot deleted the dependabot/cargo/semihosting-0.1.23 branch January 15, 2026 21:06
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