PTRACE_ARCH_PRCTL 834 arch/x86/kernel/ptrace.c case PTRACE_ARCH_PRCTL: PTRACE_ARCH_PRCTL 11 arch/x86/um/os-Linux/prctl.c return ptrace(PTRACE_ARCH_PRCTL, pid, (unsigned long) arg2, option); PTRACE_ARCH_PRCTL 270 arch/x86/um/ptrace_64.c case PTRACE_ARCH_PRCTL: