# OSDT Weekly 2020-06-10 第049期
点击【查看原文】可以跳转到GitHub上本仓库的地址,就可以进行URL的跳转了。
### 近期线下活动
下一次聚会计划是 LLVM + RISC-V 主题。目前正在征集技术分享话题,欢迎小伙伴报名来分享自己的工作。目前计划是线上。
同时我们欢迎场地支持和赞助。欢迎有志同道合的小伙伴联系我们。
## 编译社区的八卦信息
### GCC
- AArch64 SLS 安全漏洞 GCC workaround
Straight Line Speculation (SLS) mitigation.
https://gcc.gnu.org/pipermail/gcc-patches/2020-June/547520.html
- AArch64 GCC改进8.3 Pointer Authentication支持,避免指针泄露
[PATCH 0/4] aarch64: avoid exposing signed return addresses [PR94891]
https://gcc.gnu.org/pipermail/gcc-patches/2020-June/547402.html
- Codesourcery发出OpenACC Fortran改进
[PATCH 0/3] OpenACC "exit data" copyout, and Fortran derived-type members
https://gcc.gnu.org/pipermail/gcc-patches/2020-June/547300.html
- 关于VEC_COND_EXPR的深度讨论
[stage1][PATCH] Lower VEC_COND_EXPR into internal functions.
https://gcc.gnu.org/pipermail/gcc-patches/2020-June/547067.html
- Erick Ochoa的过程间优化改进被否了
[patch 0/5] ipa-initcall-cp
https://gcc.gnu.org/pipermail/gcc-patches/2020-June/547084.html
- Kewen.Lin的IVOPT优化引发持续讨论
[PATCH 0/4] IVOPTs consider step cost for different forms when unrolling
https://gcc.gnu.org/pipermail/gcc-patches/2020-June/547180.html
### Binutils/GDB
- H.J.Lu和Alan关于IFUNC实现的讨论
[PATCH] IFUNC: Update IFUNC resolver check with DT_TEXTREL
https://sourceware.org/pipermail/binutils/2020-June/111605.html
- [PATCH 0/5] x86: (mainly) insn prefix decoding adjustments
https://sourceware.org/pipermail/binutils/2020-June/111579.html
- [PATCH V2 0/3] Improve insn endianness support in CGEN ports
https://sourceware.org/pipermail/binutils/2020-June/111420.html
- [PATCH 0/6] gas/x86: adjustments to register handling
https://sourceware.org/pipermail/binutils/2020-June/111453.html
- [PATCH] x86: drop SSE4a from SSE check again
https://sourceware.org/pipermail/binutils/2020-June/111618.html
- TUI enhancement suggestion.
https://sourceware.org/pipermail/gdb-patches/2020-June/169336.html
### GLIBC
- [PATCH v2 00/18] glibc port for 32-bit RISC-V (RV32)
https://sourceware.org/pipermail/libc-alpha/2020-June/114675.html
- [PATCH v2] aarch64: MTE compatible strchrnul
https://sourceware.org/pipermail/libc-alpha/2020-June/114821.html
- [PATCH][AArch64] Merge Falkor memcpy and memmove
https://sourceware.org/pipermail/libc-alpha/2020-June/114901.html
### LLVM/Clang/LLDB/LLD
本节内容来自 [LLVM Weekly 第336期](http://llvmweekly.org/issue/336),
[Alex Bradbury](https://www.linkedin.com/in/alex-bradbury/) 大哥持续稳定输出。
ALIVE2 还在贡献力量。不过吐槽下ALIVE这个工具的名字,对搜索引擎太不友好了,搜索不到。
Nuno P Lopes and John Regehr have authored a new blog post on [tracking
miscompilations in LLVM using its own unit
tests](https://blog.regehr.org/archives/1737), which makes use of Alive2.