Zig 0.17.0-dev (Split by item)

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syscall4

s390x.syscall4

pub fn syscall4(
    number: SYS,
    arg1: syscall_arg_t,
    arg2: syscall_arg_t,
    arg3: syscall_arg_t,
    arg4: syscall_arg_t,
) u64

File

lib/std/os/linux/s390x.zig:55

Code

pub fn syscall4(
    number: SYS,
    arg1: syscall_arg_t,
    arg2: syscall_arg_t,
    arg3: syscall_arg_t,
    arg4: syscall_arg_t,
) u64 {
    return asm volatile ("svc 0"
        : [ret] "={r2}" (-> u64),
        : [number] "{r1}" (@backingInt(number)),
          [arg1] "{r2}" (arg1),
          [arg2] "{r3}" (arg2),
          [arg3] "{r4}" (arg3),
          [arg4] "{r5}" (arg4),
        : .{ .memory = true });
}