select on score

synchronous I/O multiplexing

sys_select(int n, fd_set *inp, fd_set *outp, fd_set *exp, struct timeval *tvp)
number1067 (0x42b)
abicommon
entry pointsys_select
sinceLinux 3.7 or earlier (3.7 is the first release scanned for score)
man pageselect(2)
sourceelixir.bootlin.com

Registers

registervalue
r271067, the syscall number
r4int n
r5fd_set *inp
r6fd_set *outp
r7fd_set *exp
r8struct timeval *tvp
r4the return value

Then run syscall to enter the kernel.

r7 is the error flag and r4 then holds the positive error number.

This architecture was removed from the Linux kernel in Linux 4.17. The newest release with a syscall table here is Linux 4.16. The other removed architectures live on the historical architectures page.

Same syscall on other architectures

Get this as JSON: https://api.syscall.sh/v2/syscalls/score/select?kernel=all