C++ (Cpp) dbg_hard_stp_setup_context Examples

Example #1

File: dbg_hard_stp.c Project: clflush/ramooflax

/*
** Hardware Single-step Services
*/
int dbg_hard_stp_event_gp()
{
   ud_t disasm;
   int  rc;

   if(!dbg_hard_stp_enabled())
      return CTRL_EVT_IGNORE;

   debug(DBG_HARD_STP, "sstep #GP event\n");

   dbg_hard_stp_restore_context();

   if(!disassemble(&disasm))
      return CTRL_EVT_FAIL;

   rc = __emulate_insn(&disasm);
   dbg_hard_stp_setup_context();

   switch(rc)
   {
   case EMU_FAULT:       return CTRL_EVT_FAULT;
   case EMU_UNSUPPORTED: return CTRL_EVT_IGNORE;
   case EMU_FAIL:        return CTRL_EVT_FAIL;
   }

   if(disasm.mnemonic == UD_Isysenter)
      return dbg_hard_stp_event_sysenter();

   if(disasm.mnemonic == UD_Isysexit)
      return dbg_hard_stp_event_sysexit();

   return CTRL_EVT_IGNORE;
}

Example #2

File: dbg_hard_stp.c Project: my33love/ramooflax

static int dbg_hard_stp_event_fast_syscall(int tf)
{
   int rc;

   dbg_hard_stp_restore_context();
   rc = emulate_insn(&info->vm.cpu.disasm);
   dbg_hard_stp_setup_context();

   if(rc == VM_DONE_LET_RIP)
   {
      __rflags.tf = tf;
      __post_access(__rflags);
   }

   return rc;
}

Example #3

File: dbg_hard_stp.c Project: puzirev/ramooflax

static int dbg_hard_stp_event_fast_syscall(int tf)
{
   int    rc;
   size_t sz;

   dbg_hard_stp_restore_context();

   sz = ud_insn_len(&info->vm.cpu.disasm);
   rc = emulate_done(emulate_insn(&info->vm.cpu.disasm), sz);
   info->vm.cpu.emu_sts = EMU_STS_AVL; /* stealth for db_pending() */

   dbg_hard_stp_setup_context();

   if(rc == VM_DONE_LET_RIP)
   {
      __rflags.tf = tf;
      __post_access(__rflags);
   }

   return rc;
}