OSDT Weekly 第99期

近期活动

无。

编译社区的八卦信息

• RISC-V 中国峰会 2021 的主会议程确定了

GCC

• GCC Rust git branch https://gcc.gnu.org/pipermail/gcc/2021-May/236118.html

• [PATCH 00/57] Replace the Power target-specific built-in machinery https://gcc.gnu.org/pipermail/gcc-patches/2021-May/570923.html

• [PATCH 0/5] Common API for accessing global and on-demand ranges. https://gcc.gnu.org/pipermail/gcc-patches/2021-May/570972.html

• [PATCH 0/11] warning control by group and location (PR 74765) https://gcc.gnu.org/pipermail/gcc-patches/2021-May/571120.html

• [PATCH] Try LTO partial linking. (Was: Speed of compiling gimple-match.c) https://gcc.gnu.org/pipermail/gcc-patches/2021-May/570872.html

• [PATCH v2 0/4] [og10] OpenACC: Rework struct component handling https://gcc.gnu.org/pipermail/gcc-patches/2021-May/570810.html

• [PATCH 0/2] Move xx* builtins to vsx.md. https://gcc.gnu.org/pipermail/gcc-patches/2021-May/570681.html

Binutils/GDB

• [PATCH][AArch64] MTE corefile support https://sourceware.org/pipermail/binutils/2021-May/116661.html

• [PATCH] RISC-V: PR25212, Report errors for invalid march and mabi combinations. https://sourceware.org/pipermail/binutils/2021-May/116693.html

• 来自WaveComputing的MIPS patch [PATCH v2 0/5] Add support for MIPS32/64 revision 6 https://sourceware.org/pipermail/gdb-patches/2021-May/179183.html

• [PATCH] RISC-V : Add linker support for further Z extensions http://sourceware.org/pipermail/gdb-patches/2021-May/179158.html

GLIBC

• [PATCH v2 00/14] Move libdl into libc https://sourceware.org/pipermail/libc-alpha/2021-May/126804.html

• [PATCH] x86-64: Align child stack to 16 bytes https://sourceware.org/pipermail/libc-alpha/2021-May/126739.html

• [ANNOUNCE] The Linux Test Project has been released for MAY 2021 https://sourceware.org/pipermail/libc-alpha/2021-May/126762.html

• [PATCH v5 0/5] Add an internal wrapper for clone, clone2 and clone3 https://sourceware.org/pipermail/libc-alpha/2021-May/126723.html

• Linux powerpc new system call instruction and ABI https://sourceware.org/pipermail/libc-alpha/2021-May/126532.html

• [PATCH v1 0/2] arm64: Enable BTI for the executable as well as the interpreter https://sourceware.org/pipermail/libc-alpha/2021-May/126678.html

LLVM/Clang/LLDB/LLD

本节内容来自 LLVM Weekly 386， Alex Bradbury 大哥持续稳定输出。

• Francesco Bertolaccini created ClangQL, a proof-of-concept SQLite extension for querying C++ codebases that have been indexed using clangd.

• 90秒构建LLVM，最快的记录？ Nelson Hage blogged about using AWS Lambda to build LLVM in 90 seconds.

• Pekka Jääskeläinen announced the release of PoCL v1.7, a portable open source implementation of OpenCL. This release features support for Clang/LLVM 12.0 and has imprvoed support for cross-compiling and SPIR-V binaries when using CPU devices.

• Tanya Latter is seeking input to inform planning of the 2021 LLVM Developers' Meeting, sharing a survey for input.

• Krzysztof Parzyszek postd an RFC on deprecating pre-commit email code reviews in favour of Phabricator. This limits the scope of a similar RFC that preceded it, with the goal of getting full consensus. There are no major objections so far. 有没有觉得Pha默认的规则太宽松了？被review太随意的LLVM用起来，提交历史很多意外。

• The list of accepted LLVM GSoC projects is now available.

  • 恭喜陶立强同学！ Liqiang Tao - Locally optimal inlining decisions （其他略）

• Loads and stores, GEPs, cmpxchg, and atomicrmw all now work with opaque pointers. 6013d84, 28b9771, 1b25fce. 0bebda1.

• Flang 还在开发，用LLVM跑SPEC全套的希望在变大。 MATMUL, PACK, SPREAD, TRANSPOSE, and more were implemented in the flang runtime. 5e1421b, c1db35f.

RISC-V in China

• RISC-V 中国峰会 2021 的主会议程确定了

• 阿里巴巴平头哥在RVI成立了 Android TG，后续估计要开始推动上游接收 RISC-V 的 porting 了。目前来看 Google 是比较积极接受的。

• 华为海思推出了一款RISC-V开发板 其实不算新闻了。

• RISC-V双周报5月7日-5月20日 如期而至。

RT-Thread 社区

• [【AI简报20210521期】 2nm 芯片性能提升了多少、清华「计图」现在支持国产芯片了](https://mp.weixin.qq.com/s/N_wOavxOeTvX4txFrgzWiA]

• RT-Thread 嵌入式人工智能教学在线研讨会，就在本周六！

• 本周末 基于RT-Thread的MQTT网关线下技术培训周六北京、郑州,周日天津、武汉 ,详情可见 https://www.bagevent.com/event/7365167

TVM / MLIR / AI Compilers

• 最近TVM开发比较活跃。

本周工具链岗位

往期社招及实习生招聘长期有效。

过去所有发过的招聘信息都还是有效的。都没有招满。如果感兴趣欢迎在微信公众号后台留言【招聘】咨询。

• 放假多无聊，来实习吧！
• PLCT实验室2021H1社招开启：来一起为RISC-V重新发明轮子吧！

本周推荐阅读

本周推荐：《爱丽丝漫游仙境》

作者：刘易斯·卡罗尔

翻译：青闰

推荐：小编1号

《爱丽丝漫游仙境》在我所处的大人的技术世界被广泛传颂引用的，是「那个」哲学瞬间：爱丽丝向柴郡猫问路，柴郡猫给出的回答。不过其它的部分，看起来就确实感觉没有记住什么了。总体而言适合作为给幼儿园大班左右小朋友讲的故事。可以一起天马行空加一点物理上的计算，把牛顿拉出来评评理。

比起来，《爱丽丝》跟《夏洛的网》比起来更加轻松和脱离日常一些。我记得当我看夏洛的网最后一小章节的时候是真的要哭了出来，而《爱丽丝》则更多的欢乐和单纯。

都挺好。