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Programming: LLVM, Go, Perl/Raku and Rust

Submitted by Roy Schestowitz on Wednesday 13th of May 2020 03:29:15 AM Filed under
Development
  • Intel's Load Hardening Mitigation Merged Into LLVM 11 For LVI Protection

    Intel's Load Value Injection mitigation has finally been merged into mainline LLVM.

    LLVM was disclosed back in March and while the GNU Assembler mitigation was quickly merged, on the LLVM compiler toolchain side it took until yesterday for the patch to be squared away in full.

    This Intel-developed mitigation is of similar nature to the GAS patch. When enabled, a load fence (LFENCE) is added after each instruction that may be vulnerable to LVI as well as warning over code that cannot be automatically mitigated.

  • Wanna be a developer? Your coworkers want to learn Go and like to watch, er, Friends and Big Bang Theory

    Google's Go programming language, all but disallowed by the web giant's own Fuchsia team for its excessive memory consumption, tops developers' to-do lists. That's according to a survey by tech talent platform HackerEarth.

    At the end of last week, the biz released data gathered from 16,000 programmers, more than 20 per cent of them women, in 76 countries. Its survey found that 29 per cent of students and 32 per cent of working professional developers wanted to learn Go.

    That appears to jibe with a recent Hired survey that found Go was the most sought after language by employers, and that only seven per cent of developers cited Go as their primary coding language. If companies are looking to hire Go developers, sooner or later, prospective employees can be expected to get the message.

    The HackerEarth data also indicates that SQL is the most widely known language by professional developers (52 per cent), followed by Java (50 per cent), HTML/CSS (46 per cent), Python (40 per cent), Java 8 (39 per cent), C++ (36 per cent), JavaScript/Node.js (34 per cent), and Bash/Shell/PowerShell (19 per cent).

  • Perl Weekly Challenge 060: Excel Column And Find Numbers

    This seemed like a simple base 10 to base 26 conversion and back. I started by installing Math::Base::Convert, Math::BaseConvert, Math::BaseCnv, and Convert::AnyBase to quickly discover they wouldn’t help me much. What Excel uses for column names is a weird 26 digit system that lacks a symbol for zero, but has a symbol for 26 (or for 1026). It’s called the bijective base-26 numeration system. The interesting fact about such systems is that digit addition, subtraction, and multiplication work the same way as in our common system (division is a bit problematic).

    Converting a column name to its number is easy. Start from the left, add the number corresponding to the letter to the result, then multiply it by 26 and continue with the next letter.

  • This Week in Rust 338
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today's howtos

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