wait4 on metag

wait for process to change state, BSD style

sys_wait4(pid_t pid, int *stat_addr, int options, struct rusage *ru)
number260 (0x104)
abicommon
entry pointsys_wait4
sinceLinux 3.9 or earlier (3.9 is the first release scanned for metag)
man pagewait4(2)
sourceelixir.bootlin.com

Registers

registervalue
D1Re0260, the syscall number
D1Ar1pid_t pid
D0Ar2int *stat_addr
D1Ar3int options
D0Ar4struct rusage *ru
D0Re0the return value

Then run SWITCH #0x440001 to enter the kernel.

Values wider than one register are packed into consecutive arguments.

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/metag/wait4?kernel=all