OSDT Weekly 第324期

近期活动预告

编译社区的八卦信息

GCC

• GNU Tools Weekly News Week 3 (September 14, 2025) https://sourceware.org/pipermail/binutils/2025-September/144248.html

• [PATCH] xtensa: Allow SImode GENERAL_REGS pseudos to spill into FP_REGS hardregs https://gcc.gnu.org/pipermail/gcc-patches/2025-September/695187.html

• [PATCH v1 0/4] RISC-V: Combine vec_duplicate + v{widen}u.vv to v{widen}u.vx on GR2VR cost https://gcc.gnu.org/pipermail/gcc-patches/2025-September/695286.html

• [PATCH v3 0/7] Introduce Kernel Control Flow Integrity ABI [PR107048] https://gcc.gnu.org/pipermail/gcc-patches/2025-September/695322.html

• [PATCH v2] vect: Handle grouped accesses via gather/scatter. https://gcc.gnu.org/pipermail/gcc-patches/2025-September/695480.html

• [RFC] [RISC-V] Optimize clear-lowest-set-bit sequence when ctz is nearby https://gcc.gnu.org/pipermail/gcc-patches/2025-September/695580.html

BINUTILS

本周风平浪静

GDB

• [PATCH 0/8] Remove stabs support from GDB https://sourceware.org/pipermail/gdb-patches/2025-September/220782.html

• [PATCH 0/7] Some gdb CTF reader cleanups https://sourceware.org/pipermail/gdb-patches/2025-September/220904.html

• [PATCH] Handle Ada extended access thick pointers https://sourceware.org/pipermail/gdb-patches/2025-September/221019.html

GLIBC

• [PATCH 1/8] atomic: Use builtin atomics with USE_ATOMIC_COMPILER_BUILTINS https://sourceware.org/pipermail/libc-alpha/2025-September/169942.html

• [PATCH 0/1] riscv: Use Zbkb pack* in repeat_bytes for https://sourceware.org/pipermail/libc-alpha/2025-September/170092.html

• [PATCH 0/3] Optimize dbl-64 remainder implementation https://sourceware.org/pipermail/libc-alpha/2025-September/170098.html

• [RFC v4 0/4] string: Addd equality APIs https://sourceware.org/pipermail/libc-alpha/2025-September/170142.html

• [PATCH v2 00/12] Add binary64 CORE-MATH implementations to libm https://sourceware.org/pipermail/libc-alpha/2025-September/170238.html

• [PATCH v3 0/3] riscv: tidy memcpy_noalignment for Zc-friendly encoding https://sourceware.org/pipermail/libc-alpha/2025-September/170312.html

LLVM/Clang/LLDB/LLD

本节内容来自 LLVM Weekly 第 611 期， Alex Bradbury 大哥持续稳定输出。

• IR的变更牵一发动全身： Sebastian Pop started a thread to discuss the gradual removal of types from LLVM IR (e.g. pointers). This spawned a lot of discussion on different somewhat related topics, e.g. the criteria for enabling passes by default, the delinearization pass, and of course the future of LLVM IR. Nikita Popov gives a direct answer to the first question about why type information is being removed.

• 会好用么？ Benoit Meister posted an RFC Ripple: A Compiler-Interpreted API for Efficient SIMD Programming. "We have been working on Ripple, a lean addition to LLVM to support Single-Program, Multiple-Data (SPMD) and loop-annotation-based parallel programming for SIMD hardware. We propose a parallel programming API to support these two models, which departs from GPU-style SPMD programming, in that block computations of different dimensions (including 0) can coexist in the same function. This makes it easier to explicitly express mixes of scalar, vector and tensor computations."

• 稳定发布： LLVM 21.1.1 was released.

QEMU (RISC-V)

• [PATCH v2 0/6] target/riscv: Implement Smsdid and Smmpt extension https://lists.nongnu.org/archive/html/qemu-devel/2025-09/msg03498.html

• [RFC PATCH 0/8] Add Zvfbfa extension support https://lists.nongnu.org/archive/html/qemu-devel/2025-09/msg02656.html

RISC-V in China

• https://ruyisdk.cn 每日八卦都在这里了。

RT-Thread 社区

• 风平浪静。

AI Compilers

• 风平浪静。

本周工具链岗位

往期社招及实习生招聘长期有效。

• 甲辰计划开放10名 VSCode RISC-V 插件开发实习岗位，睿赛德、苦芽科技、PLCT实验室联合招聘培养
• PLCT实验室春招 RISC-V 实习岗位汇总（2025年3月）｜甲辰计划开源实习生联合招聘培养
• openEuler RISC-V 实习机会暨OERV 实习岗位汇总｜RISC-V 与 Linux 发行版生态
• 大算力芯片公司招聘高级编译器研发工程师、GPU算法研发、集群互联开发等岗位

本周推荐阅读

本周推荐：《六页备忘录》

作者：卡迈恩·加洛

译者：常可

推荐：小编1号

介绍亚马逊创始人贝佐斯的沟通方式。这个在物联网圈子比较有名。这本书的最大感受就是用知名的公开信作为案例进行了一系列的教学。

看一本书就学会肯定是不太现实，这本书的作用就是（跟很多同类型的书一起）常看常新。说不定哪天就用上了一些，三两句，就足够阅读的时间了。