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RichFelker's profile
Rich Felker
Rich Felker
Rich Felker
@RichFelker

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Rich Felker

@RichFelker

Yeah, I do @musllibc, FOSS & infosec stuff. But now is not the time for a mostly-/only-tech Twitter feed.

musl-libc.org
Joined March 2014

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    1. CopperheadOS‏ @CopperheadOS Jan 28

      F DEBUG : pid: 9975, tid: 10029, name: Thread-23 >>> http://com.flir .flirone <<< F DEBUG : signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr -------- F DEBUG : Abort message: 'free(): bogus pointer (double free?) 0x6e28c31de0' [...] Quality native app code.pic.twitter.com/L9BbLyryhA

      2 replies 6 retweets 12 likes
      Show this thread
    2. CopperheadOS‏ @CopperheadOS Jan 28

      They didn't strip debug symbols so we could probably give them a useful bug report, maybe with Valgrind... but any developers using C or C++ code should really be doing at least basic testing with ASan. Easy to hit this by plugging / unplugging the thermal camera a dozen times.

      2 replies 1 retweet 9 likes
      Show this thread
    3. P̵̛wn̷̕̕ A̶͡ll͜͝͝ T̡̛̕h̷̶̀͠͡e̷̵̶̷ T̵͜͢h̸̸́͟i̕ng͝s͡‏ @pwnallthethings Jan 28
      Replying to @CopperheadOS

      I don't get why they let apps use C/C++

      1 reply 0 retweets 1 like
    4. CopperheadOS‏ @CopperheadOS Jan 28
      Replying to @pwnallthethings

      There's too much useful existing code and some apps have performance critical use cases. This app genuinely needs to do a lot of data processing, although a decently written one in pure Java would probably be a lot faster than this anyway...

      3 replies 0 retweets 4 likes
      Rich Felker‏ @RichFelker Jan 28
      Replying to @CopperheadOS @pwnallthethings

      Nobody would write apps that are more than shuffling data (possibly from cloud backend) around and presenting it if they had to write actual code in Java.

      5:04 PM - 28 Jan 2018
      1 reply 0 retweets 0 likes
        1. New conversation
        2. CopperheadOS‏ @CopperheadOS Jan 28
          Replying to @RichFelker @pwnallthethings

          Apps tend to stick to Java (or Kotlin nowadays) unless they have something truly performance critical or there's a really useful native library they want to use (in this case zeromq).

          1 reply 0 retweets 2 likes
        3. Rich Felker‏ @RichFelker Jan 28
          Replying to @CopperheadOS @pwnallthethings

          Apps tend to have no actual code content, just be frontends for cloud services...

          1 reply 0 retweets 1 like
        4. CopperheadOS‏ @CopperheadOS Jan 28
          Replying to @RichFelker @pwnallthethings

          Not really. One of the most popular app categories are games which often have performance critical code though, but primarily just the game engine with very little of the game-specific code being like that. Not that much different than how it works for many desktop games.

          2 replies 0 retweets 1 like
        5. CopperheadOS‏ @CopperheadOS Jan 28
          Replying to @CopperheadOS @RichFelker @pwnallthethings

          Kotlin is a genuinely nice language that's not at all verbose or annoying but Java isn't bad enough to drive everyone to it ASAP. Android's Java implementation isn't actually Java itself either. CopperheadOS uses full AOT compilation for dex so it's not much different from Go.

          0 replies 0 retweets 2 likes
        6. End of conversation

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