OSDT Weekly 第354期

近期活动预告

编译社区的八卦信息

GCC

• [PATCH] x86: Zero ZMM16-31 when zeroing all call used registers https://gcc.gnu.org/pipermail/gcc-patches/2026-April/712794.html

• [GCC17-PATCH 0/6] Improve Phiprop slightly https://gcc.gnu.org/pipermail/gcc-patches/2026-April/712785.html

• [PATCH] c++, libstdc++: Implement LWG4483 - Multidimensional arrays are not supported by meta::reflect_constant_array and related functions https://gcc.gnu.org/pipermail/gcc-patches/2026-April/712674.html

• [PATCH] AArch64: Deprecate -mpc-relative-literal-loads https://gcc.gnu.org/pipermail/gcc-patches/2026-April/712668.html

BINUTILS

• [PATCH 0/2] x86: gas insn operand processing https://sourceware.org/pipermail/binutils/2026-April/148897.html

• [PATCH 0/3] ELF: visibility handling https://sourceware.org/pipermail/binutils/2026-April/148933.html

• [PATCH v2 0/1] Fix IAT (Import Address Table) alignment on AArch64 https://sourceware.org/pipermail/binutils/2026-April/148952.html

GDB

• [PATCH v4 0/4] [gdb] Fix missing print frame when stepping out of function https://sourceware.org/pipermail/gdb-patches/2026-April/226422.html

• [PATCH 2/2] RISC-V Vector Extension Support Testing https://sourceware.org/pipermail/gdb-patches/2026-April/226457.html

GLIBC

本周继续讨论

• glibc AI policy https://sourceware.org/pipermail/libc-alpha/2026-April/176395.html

• [PATCH 0/5] Remove s390-linux-gnu (31bit) https://sourceware.org/pipermail/libc-alpha/2026-April/176502.html

• [PATCH 0/2] sframe: Add SFrame V3 stack backtracing support https://sourceware.org/pipermail/libc-alpha/2026-April/176648.html

• [PATCH v2 1/4] AArch64: Improve AdvSIMD and SVE pow(f). https://sourceware.org/pipermail/libc-alpha/2026-April/176669.html

• [PATCH v9 0/6] elf: THP-aware load segment alignment https://sourceware.org/pipermail/libc-alpha/2026-April/176594.html

LLVM/Clang/LLDB/LLD

本节内容来自 LLVM Weekly 第 641 期， Alex Bradbury 大哥持续稳定输出。

• 本周 EuroLLVM 2026 在爱尔兰都柏林举行，超过200人参会。

• 好文章： Kavin Gnanapandithan blogged about tracking down and fixing a performance regression in LLVM RISC-V code generation. It walks through the whole process of spotting a regression on Igalia's LNT instance, analysing the problem, and finding and patching the issue.

• 宋教授！ Fangrui Song wrote about recent performance improvements to the LLD ELF linker. Comparing current main against LLVM 22.1 "Release+Asserts clang --gc-sections link is 1.37x as fast as lld 22.1; Chromium debug with --gdb-index is 1.07x as fast." Read the post for more details, as well as why mold and wild are faster still.

QEMU

• [PATCH v6 0/7] riscv: add initial sdext support https://lore.kernel.org/qemu-devel/cover.1775959096.git.chao.liu.zevorn@gmail.com/

• [PATCH v2 0/4] hw/riscv: Boot setup improvements https://lore.kernel.org/qemu-devel/20260415064838.652297-1-joel@jms.id.au/

• [PATCH v4 00/31] hw/arm/virt: Introduce Tegra241 CMDQV support for accelerated SMMUv3 https://lore.kernel.org/qemu-devel/20260415105552.622421-1-skolothumtho@nvidia.com/

• [PATCHv6 00/15] Adding comprehensive support for i.MX8MM EVK board https://lore.kernel.org/qemu-devel/20260414182313.1691519-1-gaurav.sharma_7@nxp.com/

• [PATCH v12 00/15] whpx: i386: bug fixes, feature probing and CPUID https://lore.kernel.org/qemu-devel/20260413205208.50643-1-mohamed@unpredictable.fr/

• [PATCH v3 00/27] monitor: Remove need of per-target handlers https://lore.kernel.org/qemu-devel/20260414003001.97571-1-philmd@linaro.org/

• [PATCH v2 00/17] hw/usb/ehci: Add 64-bit descriptor addressing support https://lore.kernel.org/qemu-devel/20260414080025.3005916-1-jamin_lin@aspeedtech.com/

• [PATCH v2 00/67] ui: add standalone VNC server over D-Bus https://lore.kernel.org/qemu-devel/20260410-qemu-vnc-v2-0-231416f76dc3@redhat.com/

• [PATCH V6 00/14] iothread: Support tracking and querying IOThread holders https://lore.kernel.org/qemu-devel/20260410150457.85190-1-zhangckid@gmail.com/

• [PATCH 00/17] bsd-user: upstream ioctl https://lore.kernel.org/qemu-devel/20260412-ioctl-v1-0-1d998a460560@bsdimp.com/

• [PATCH v4 0/3] improve aio-polling efficiency https://lore.kernel.org/qemu-devel/20260412215011.326196-1-jhkim@linux.ibm.com/

• [PATCH v2] add a refresh_rate option to virtio-gpu https://lore.kernel.org/qemu-devel/20260415-virtio-gpu-refresh-rate-v2-1-b71599d84755@slonk.ing/

• [PATCH] block: add blockdev-attach QMP command https://lore.kernel.org/qemu-devel/20260415173905.71224-1-matthieu@min.io/

RISC-V in China

• https://ruyisdk.cn 每日八卦都在这里了。

RT-Thread 社区

• 风平浪静。招募小编！

AI Compilers

• 风平浪静。招募小编！

本周工具链岗位

往期社招及实习生招聘长期有效。

• 知名芯片公司诚招AI基础软件专家
• Nvidia在北京办公室新开放了一个AI负责人岗位。点击这里查看
• 京东开放JavaScript引擎开发岗位，参与京东JS引擎能力建设

本周推荐阅读

本周推荐：《民国就是这么生猛》

作者： 雾满拦江

推荐： 小编1号

野史就是要足够野才能作为日常生活的打发时间的选择之一。这本书就够野，值得在需要吹牛的时候用上。