ptrace_cdef.lua

local ffi=require("ffi")

local _regs_t={"r15","r14","r13","r12","rbp","rbx","r11","r10","r9","r8","rax","rcx","rdx","rsi","rdi","orig_rax","rip","cs","eflags","rsp","ss","fs_base","gs_base","ds","es","fs","gs"}

local _regs_struct_str="struct user_regs_struct {\n"

for _,v in ipairs(_regs_t) do
  _regs_struct_str=_regs_struct_str..'__extension__ unsigned long long int '..v..';\n'
end

ffi.cdef(_regs_struct_str..'};')

regs_struct=ffi.metatype("struct user_regs_struct",{
  __pairs=function(self)
         return coroutine.wrap(function()
           for _,k in pairs(_regs_t) do
             coroutine.yield(k,self[k])
           end
         end)
  end
})



ffi.cdef[[
enum __ptrace_request
{
  PTRACE_TRACEME = 0,
  PTRACE_PEEKTEXT = 1,
  PTRACE_PEEKDATA = 2,
  PTRACE_PEEKUSER = 3,
  PTRACE_POKETEXT = 4,
  PTRACE_POKEDATA = 5,
  PTRACE_POKEUSER = 6,
  PTRACE_CONT = 7,
  PTRACE_KILL = 8,
  PTRACE_SINGLESTEP = 9,
   PTRACE_GETREGS = 12,
   PTRACE_SETREGS = 13,
   PTRACE_GETFPREGS = 14,
   PTRACE_SETFPREGS = 15,
  PTRACE_ATTACH = 16,
  PTRACE_DETACH = 17,
   PTRACE_GETFPXREGS = 18,
   PTRACE_SETFPXREGS = 19,
  PTRACE_SYSCALL = 24,
  PTRACE_SETOPTIONS = 0x4200,
  PTRACE_GETEVENTMSG = 0x4201,
  PTRACE_GETSIGINFO = 0x4202,
  PTRACE_SETSIGINFO = 0x4203,
  PTRACE_GETREGSET = 0x4204,
  PTRACE_SETREGSET = 0x4205,
  PTRACE_SEIZE = 0x4206,
  PTRACE_INTERRUPT = 0x4207,
  PTRACE_LISTEN = 0x4208
};
enum __ptrace_flags
{
  PTRACE_SEIZE_DEVEL = 0x80000000
};
enum __ptrace_setoptions
{
  PTRACE_O_TRACESYSGOOD = 0x00000001,
  PTRACE_O_TRACEFORK = 0x00000002,
  PTRACE_O_TRACEVFORK = 0x00000004,
  PTRACE_O_TRACECLONE = 0x00000008,
  PTRACE_O_TRACEEXEC = 0x00000010,
  PTRACE_O_TRACEVFORKDONE = 0x00000020,
  PTRACE_O_TRACEEXIT = 0x00000040,
  PTRACE_O_TRACESECCOMP = 0x00000080,
  PTRACE_O_MASK = 0x000000ff
};
enum __ptrace_eventcodes
{
  PTRACE_EVENT_FORK = 1,
  PTRACE_EVENT_VFORK = 2,
  PTRACE_EVENT_CLONE = 3,
  PTRACE_EVENT_EXEC = 4,
  PTRACE_EVENT_VFORK_DONE = 5,
  PTRACE_EVENT_EXIT = 6,
  PTRAVE_EVENT_SECCOMP = 7
};
extern long int ptrace (enum __ptrace_request __request, ...) __attribute__ ((__nothrow__ , __leaf__));
]]