4 ms·

The version being built (2.4) is over twenty years old and had much less code. If you take a modern kernel (like 5.x) and build configure it with 'make tinycon

The version being built (2.4) is over twenty years old and had much less code. If you take a modern kernel (like 5.x) and build configure it with 'make tinyconfig', it should build similarly quickly.

MuffinFlavored 4y ago
Can TinyCC still compile the 5.x kernel without issues?
- rurban 4y ago
  No, this is being worked in. The goal should be a -Oboring optimizer without any broken optimizations and aggressive UB assumptions. Something neither gcc nor clang can provide.
- wrycoder 4y ago
  See bootstrapping.org
  - chexum 4y ago
    http://bootstrappable.org http://bootstrappable.org perhaps?
    - wrycoder 4y ago
      oops. Thanks! https://bootstrappable.org/ https://bootstrappable.org/ https://bootstrapping.miraheze.org/wiki/Mes https://bootstrapping.miraheze.org/wiki/Mes https://reproducible-builds.org/ https://reproducible-builds.org/ https://archive.fosdem.org/2021/schedule/event/gnumes/ https://archive.fosdem.org/2021/schedule/event/gnumes/
- sylware 4y ago
  you cannot, as linux code is using a lot of gcc/clang extensions stuff, namely this is some sort of C dialect, not really C. Almost at every new release of linux, "somebody" did manage to commit into its code the usage of new gcc/clang extensions. The right(TM) way would be to port linux to simple and lean C (like some simple C89 with benign bits of c99/c11): the price is some loss of performance which could be partially mitigated with an assembly port of critical fast-paths (I guess that would show on really loaded servers only). In the end, if RISC-V is a success, namely a world with a pertinent ISA without toxic IP tied to it (like x86/arm), then a full assembly port of linux would be more than interesting in order to rid it from compiler tantrums.
  - MuffinFlavored 4y ago
    > you cannot, as linux code is using a lot of gcc/clang extensions stuff Linux 5.x kernel that is, but not Linux 4.x kernel because that was tcc-compilable?
pacetherace 4y ago
Thanks for making me feel old

The version being built (2.4) is over twenty years old and had much less code. If you take a modern kernel (like 5.x) and build configure it with 'make tinyconfig', it should build similarly quickly.

MuffinFlavored 4y ago

Can TinyCC still compile the 5.x kernel without issues?

rurban 4y ago
No, this is being worked in. The goal should be a -Oboring optimizer without any broken optimizations and aggressive UB assumptions. Something neither gcc nor clang can provide.
wrycoder 4y ago
See bootstrapping.org
- chexum 4y ago
  http://bootstrappable.org http://bootstrappable.org perhaps?
  - wrycoder 4y ago
    oops. Thanks! https://bootstrappable.org/ https://bootstrappable.org/ https://bootstrapping.miraheze.org/wiki/Mes https://bootstrapping.miraheze.org/wiki/Mes https://reproducible-builds.org/ https://reproducible-builds.org/ https://archive.fosdem.org/2021/schedule/event/gnumes/ https://archive.fosdem.org/2021/schedule/event/gnumes/
sylware 4y ago
you cannot, as linux code is using a lot of gcc/clang extensions stuff, namely this is some sort of C dialect, not really C. Almost at every new release of linux, "somebody" did manage to commit into its code the usage of new gcc/clang extensions. The right(TM) way would be to port linux to simple and lean C (like some simple C89 with benign bits of c99/c11): the price is some loss of performance which could be partially mitigated with an assembly port of critical fast-paths (I guess that would show on really loaded servers only). In the end, if RISC-V is a success, namely a world with a pertinent ISA without toxic IP tied to it (like x86/arm), then a full assembly port of linux would be more than interesting in order to rid it from compiler tantrums.
- MuffinFlavored 4y ago
  > you cannot, as linux code is using a lot of gcc/clang extensions stuff Linux 5.x kernel that is, but not Linux 4.x kernel because that was tcc-compilable?

pacetherace 4y ago

Thanks for making me feel old