OSDT Weekly 第337期 · OSDT Weekly

近期活动预告

冬至吃饺子。

GDB 17.1 released!

[PATCH v3 0/9] aarch64: Add fp8 sme 2.1 features per ACLE 2024Q4 https://gcc.gnu.org/pipermail/gcc-patches/2025-December/703667.html
[PATCH v2 0/1] aarch64: Add the ability to have three types in an sve/sme intrinsic name https://gcc.gnu.org/pipermail/gcc-patches/2025-December/703713.html
[PATCH v5 0/4] aarch64: Updates to architecture extension command line options https://gcc.gnu.org/pipermail/gcc-patches/2025-December/703764.html
[COMMITTED 01/12] gccrs: Use tl::expected in the parser to avoid error state https://gcc.gnu.org/pipermail/gcc-patches/2025-December/703864.html

本节内容来自 LLVM Weekly 第 624 期， Alex Bradbury 大哥持续稳定输出。

看了，很好： My Igalia colleague Luke Lau wrote the first part of a blog series on closing the performance gap between Clang/LLVM RISC-V and GCC. This part covers methodology, LNT, and how fixing a failure to select fmsub give a ~1.8% improvement in instruction count.
可视化工具： Miguel Cárdenas wrote on the LLVM project blog about their GSoC project to provide new visualisation tools (see a demo here).
汇总贴： There's been an incredible amount of back and forth discussion on the floating point minimum and maximum operations RFC. Nikita Popv posted a summary of facts and proposed next steps.
总结贴： Andrzej Warzynski wrote up some 2025 highlights for the MLIR vector dialect.
得看看： Meeting notes from the last LLVM project council meeting are now available. One of the topics discussed was the SFrame RFC, where Nikita Popov has now written up some thoughts.
哇，厉害了，期待： An Apple M5/A19 CPU definition was added. f85494f.

风平浪静。

specialshoot 报告在开中断的情况下 waitqueue 可能醒不来的问题，并提出了相应的修改方案，欢迎社区讨论。详见: https://github.com/RT-Thread/rt-thread/issues/11068。
社区讨论希望能出一份 RT-Thread 上使用设备树的手册，但似乎 DM 的作者并不着急。详见 https://github.com/RT-Thread/rt-thread/issues/11025。
CYFS3 提出修改 rt_object_init 接口的提案，详见 https://github.com/RT-Thread/rt-thread/issues/11043。
tian2k 提出内核时间子模块存在问题，timegm()/mktime() 日期规范化顺序错误，会导致跨年计算得到错误的 Unix 时间戳。详见 https://github.com/RT-Thread/rt-thread/issues/11040。
tu461987807 报告一个 PM 组件的问题，进入对应的 suspend 状态后可能不执行对应的 resume。详见 https://github.com/RT-Thread/rt-thread/issues/11046。

CUDA发布新版本；摩尔线程本周召开开发者大会。

往期社招及实习生招聘长期有效。

本周推荐：《污名陷阱》

作者：奥弗·沙龙

译者：王瀚 / 杨子钰