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Something like ls still relies on sys-calls. If they change in the future someone would have to still update it right? So even if you have a working C-compiler
by dachrillz 5y ago
Something like ls still relies on sys-calls. If they change in the future someone would have to still update it right?
So even if you have a working C-compiler in the far future, so that you can compile ls on new operating systems or whatever, even this simple application requires maintenance?
- deleted 5y ago[deleted]
- deleted 5y ago[deleted]
- fsflover 5y agoThen it depends on what you consider "finished". If your underlying system changes, it's a totally different problem for me.
- pdkl95 5y ago> relies on sys-calls No, the rely on POSIX[1][2]. Syscalls are an implementation detail handled by the compiler. Programs (like 'ls' and the rest of coreutils) that conform[3] to the POSIX standard should continue to work in future POSIX compatible operating systems. If future operating systems deliberately introduce changes that break POSIX, then some work will be required to port the programs to the new environment. However, this type of porting process is really implementing a new feature. The original finished version isn't affected and shouldn't need maintenance. [1] https://en.wikipedia.org/wiki/POSIX https://en.wikipedia.org/wiki/POSIX [2] Other standards are also important, but I am only mentioning POSIX for brevity. [3] https://github.com/coreutils/coreutils https://github.com/coreutils/coreutils "Like the rest of the GNU system, these programs mostly conform to POSIX, with BSD and other extensions."