PT_IO
case PT_IO:
case PT_IO:
case PT_IO:
SYSCALL_REQUIRE(ptrace(PT_IO, child, &io, 0) != -1);
SYSCALL_REQUIRE(ptrace(PT_IO, child, &io, sizeof(io))
SYSCALL_REQUIRE(ptrace(PT_IO, child, &io, sizeof(io))
SYSCALL_REQUIRE(ptrace(PT_IO, child, &io, sizeof(io))
SYSCALL_REQUIRE(ptrace(PT_IO, child, &io, sizeof(io)) == -1);
SYSCALL_REQUIRE(ptrace(PT_IO, child, &io, sizeof(io)) == -1);
rv = ptrace(PT_IO, child, &io, sizeof(io));