wait4 on ia32

wait for process to change state, BSD style

compat_sys_wait4(pid_t pid, int *stat_addr, int options, struct rusage *ru)
number114 (0x72)
abii386
entry pointcompat_sys_wait4
sinceLinux 3.3 or earlier (3.3 is the first release scanned for ia32)
man pagewait4(2)
sourceelixir.bootlin.com

Registers

registervalue
eax114, the syscall number
ebxpid_t pid
ecxint *stat_addr
edxint options
esistruct rusage *ru
eaxthe return value

Then run int 0x80 to enter the kernel.

This compat ABI is only available when the kernel is built with CONFIG_IA32_EMULATION.

Same syscall on other architectures

Get this as JSON: https://api.syscall.sh/v2/syscalls/ia32/wait4