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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. Longhorn‏ @never_released Jan 14
      • Report Tweet
      • Report NetzDG Violation

      Meanwhile, seeing what @marcan42 just did... Having a Mach-O header present through a linker script for an _ELF_ linker is… let’s say quite unique.

      1 reply 6 retweets 65 likes
    2. Hector Martin‏ @marcan42 Jan 14
      • Report Tweet
      • Report NetzDG Violation
      Replying to @never_released

      This is a Linux bootloader, why would I force people to get a mach-o toolchain to compile it? That would be silly, when mach-o is just being used as a completely unnecessary wrapper format for what should have been a simple bare-metal binary blob. 🙃

      4 replies 0 retweets 52 likes
    3. Erin  ✨ 💽‏ @erincandescent 22h22 hours ago
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      Replying to @marcan42 @never_released

      I don't think this is the first time i've seen this kind of hack. Pretty sure some Linux distros used to build EFI apps by slapping a PE header on an ELF and embedding some code which processed ELF relocations

      2 replies 0 retweets 9 likes
    4. Hector Martin‏ @marcan42 20h20 hours ago
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      Replying to @erincandescent @never_released

      devkitPPC was doing it on the Wii/GameCube for ages to build DOL executables, but I *got rid* of that hack because it was poorly implemented and replaced it with an ELF to DOL converter because that made more sense.

      1 reply 0 retweets 3 likes
    5. Hector Martin‏ @marcan42 19h19 hours ago
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      Replying to @marcan42 @erincandescent @never_released

      What we found was that people were using the ELFs directly with our loader, but those ELFs were *not* intended to be used directly since they embedded the DOL header, which was going into an area of memory that should've been reserved.

      1 reply 0 retweets 2 likes
      Hector Martin‏ @marcan42 19h19 hours ago
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      Replying to @marcan42 @erincandescent @never_released

      We ended up rejecting those at some point after I added sanity checks to our ELF loader and a lot of people hated us for breaking their software :-) (They could recompile with a newer toolchain that didn't do that, or just convert to DOL with objcopy - we support DOL)

      5:42 AM - 15 Jan 2021
      • 3 Likes
      • Costy Petrisor Tyson Key Erin ✨💽
      0 replies 0 retweets 3 likes

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