Commit graph

3 commits

Author SHA1 Message Date
Mauri de Souza Nunes
cb4e51a7a5 Userland: Add syscall -l option and man page 2019-12-24 20:23:37 +01:00
Andreas Kling
3da6d89d1f Kernel+LibC: Remove the isatty() syscall
This can be implemented entirely in userspace by calling tcgetattr().
To avoid screwing up the syscall indexes, this patch also adds a
mechanism for removing a syscall without shifting the index of other
syscalls.

Note that ports will still have to be rebuilt after this change,
as their LibC code will try to make the isatty() syscall on startup.
2019-11-17 20:03:42 +01:00
Mauri de Souza Nunes
b61414fb96 Userland: Add syscall program
The Plan9 OS has this  program that can test a system call with the
given arguments. For the most basic system calls it can be very
helpful and aid with testing or just to play with a given syscall
without writing a dedicated program.

Some examples:
    syscall write 1 hello 5
    syscall -o read 0 buf 5
    syscall mkdir /tmp/my-dir
    syscall exit 2
    ...
2019-11-04 12:47:54 +01:00