static void
ppcnbsd_fetch_inferior_registers (struct target_ops *ops,
				  struct regcache *regcache, int regnum)
{
  struct gdbarch *gdbarch = get_regcache_arch (regcache);

  if (regnum == -1 || getregs_supplies (gdbarch, regnum))
    {
      struct reg regs;

      if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
		  (PTRACE_TYPE_ARG3) &regs, 0) == -1)
        perror_with_name (_("Couldn't get registers"));

      ppc_supply_gregset (&ppcnbsd_gregset, regcache,
			  regnum, &regs, sizeof regs);
    }

  if (regnum == -1 || getfpregs_supplies (gdbarch, regnum))
    {
      struct fpreg fpregs;

      if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
		  (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
	perror_with_name (_("Couldn't get FP registers"));

      ppc_supply_fpregset (&ppcnbsd_fpregset, regcache,
			   regnum, &fpregs, sizeof fpregs);
    }
}
Пример #2
0
void
riscv_fbsd_nat_target::store_registers (struct regcache *regcache,
					int regnum)
{
  pid_t pid = get_ptrace_pid (regcache->ptid ());

  struct gdbarch *gdbarch = regcache->arch ();
  if (regnum == -1 || getregs_supplies (gdbarch, regnum))
    {
      struct reg regs;

      if (ptrace (PT_GETREGS, pid, (PTRACE_TYPE_ARG3) &regs, 0) == -1)
	perror_with_name (_("Couldn't get registers"));

      regcache->collect_regset (&riscv_fbsd_gregset, regnum, &regs,
			       sizeof (regs));

      if (ptrace (PT_SETREGS, pid, (PTRACE_TYPE_ARG3) &regs, 0) == -1)
	perror_with_name (_("Couldn't write registers"));
    }

  if (regnum == -1 || getfpregs_supplies (gdbarch, regnum))
    {
      struct fpreg fpregs;

      if (ptrace (PT_GETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
	perror_with_name (_("Couldn't get floating point status"));

      regcache->collect_regset (&riscv_fbsd_fpregset, regnum, &fpregs,
				sizeof (fpregs));

      if (ptrace (PT_SETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
	perror_with_name (_("Couldn't write floating point status"));
    }
}
Пример #3
0
void
riscv_fbsd_nat_target::fetch_registers (struct regcache *regcache,
					int regnum)
{
  pid_t pid = get_ptrace_pid (regcache->ptid ());

  struct gdbarch *gdbarch = regcache->arch ();
  if (regnum == -1 || regnum == RISCV_ZERO_REGNUM)
    regcache->raw_supply_zeroed (RISCV_ZERO_REGNUM);
  if (regnum == -1 || getregs_supplies (gdbarch, regnum))
    {
      struct reg regs;

      if (ptrace (PT_GETREGS, pid, (PTRACE_TYPE_ARG3) &regs, 0) == -1)
	perror_with_name (_("Couldn't get registers"));

      regcache->supply_regset (&riscv_fbsd_gregset, regnum, &regs,
			       sizeof (regs));
    }

  if (regnum == -1 || getfpregs_supplies (gdbarch, regnum))
    {
      struct fpreg fpregs;

      if (ptrace (PT_GETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
	perror_with_name (_("Couldn't get floating point status"));

      regcache->supply_regset (&riscv_fbsd_fpregset, regnum, &fpregs,
			       sizeof (fpregs));
    }
}
Пример #4
0
static void
m68k_linux_fetch_inferior_registers (struct target_ops *ops,
				     struct regcache *regcache, int regno)
{
  int tid;

  /* Use the old method of peeking around in `struct user' if the
     GETREGS request isn't available.  */
  if (! have_ptrace_getregs)
    {
      old_fetch_inferior_registers (regcache, regno);
      return;
    }

  /* GNU/Linux LWP ID's are process ID's.  */
  tid = TIDGET (inferior_ptid);
  if (tid == 0)
    tid = PIDGET (inferior_ptid);	/* Not a threaded program.  */

  /* Use the PTRACE_GETFPXREGS request whenever possible, since it
     transfers more registers in one system call, and we'll cache the
     results.  But remember that fetch_fpxregs can fail, and return
     zero.  */
  if (regno == -1)
    {
      fetch_regs (regcache, tid);

      /* The call above might reset `have_ptrace_getregs'.  */
      if (! have_ptrace_getregs)
	{
	  old_fetch_inferior_registers (regcache, -1);
	  return;
	}

      fetch_fpregs (regcache, tid);
      return;
    }

  if (getregs_supplies (regno))
    {
      fetch_regs (regcache, tid);
      return;
    }

  if (getfpregs_supplies (regno))
    {
      fetch_fpregs (regcache, tid);
      return;
    }

  internal_error (__FILE__, __LINE__,
		  _("Got request for bad register number %d."), regno);
}
Пример #5
0
/* Store register REGNO back into the child process.  If REGNO is -1,
   do this for all registers (including the floating point and SSE
   registers).  */
static void
m68k_linux_store_inferior_registers (struct target_ops *ops,
				     struct regcache *regcache, int regno)
{
  int tid;

  /* Use the old method of poking around in `struct user' if the
     SETREGS request isn't available.  */
  if (! have_ptrace_getregs)
    {
      old_store_inferior_registers (regcache, regno);
      return;
    }

  /* GNU/Linux LWP ID's are process ID's.  */
  tid = TIDGET (inferior_ptid);
  if (tid == 0)
    tid = PIDGET (inferior_ptid);	/* Not a threaded program.  */

  /* Use the PTRACE_SETFPREGS requests whenever possible, since it
     transfers more registers in one system call.  But remember that
     store_fpregs can fail, and return zero.  */
  if (regno == -1)
    {
      store_regs (regcache, tid, regno);
      store_fpregs (regcache, tid, regno);
      return;
    }

  if (getregs_supplies (regno))
    {
      store_regs (regcache, tid, regno);
      return;
    }

  if (getfpregs_supplies (regno))
    {
      store_fpregs (regcache, tid, regno);
      return;
    }

  internal_error (__FILE__, __LINE__,
		  _("Got request to store bad register number %d."), regno);
}
Пример #6
0
static void
ppcobsd_store_registers (struct target_ops *ops,
			 struct regcache *regcache, int regnum)
{
  struct reg regs;

  if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
	      (PTRACE_TYPE_ARG3) &regs, 0) == -1)
    perror_with_name (_("Couldn't get registers"));

  ppc_collect_gregset (&ppcobsd_gregset, regcache,
		       regnum, &regs, sizeof regs);
#ifndef PT_GETFPREGS
  ppc_collect_fpregset (&ppcobsd_gregset, regcache,
			regnum, &regs, sizeof regs);
#endif

  if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
	      (PTRACE_TYPE_ARG3) &regs, 0) == -1)
    perror_with_name (_("Couldn't write registers"));

#ifdef PT_GETFPREGS
  if (regnum == -1
      || getfpregs_supplies (get_regcache_arch (regcache), regnum))
    {
      struct fpreg fpregs;

      if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
		  (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
	perror_with_name (_("Couldn't get floating point status"));

      ppc_collect_fpregset (&ppcobsd_fpregset, regcache,
			    regnum, &fpregs, sizeof fpregs);

      if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
		  (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
	perror_with_name (_("Couldn't write floating point status"));
    }
#endif
}
Пример #7
0
void
store_inferior_registers (int regno)
{
  if (regno == -1 || getregs_supplies (regno))
    {
      struct reg regs;

      if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
		  (PTRACE_ARG3_TYPE) &regs, 0) == -1)
	perror_with_name (_("Couldn't get registers"));

      ppcfbsd_fill_reg ((char *) &regs, regno);

      if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
		  (PTRACE_ARG3_TYPE) &regs, 0) == -1)
	perror_with_name (_("Couldn't write registers"));

      if (regno != -1)
	return;
    }

  if (regno == -1 || getfpregs_supplies (regno))
    {
      struct fpreg fpregs;

      if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
		  (PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
	perror_with_name (_("Couldn't get FP registers"));

      ppcfbsd_fill_fpreg ((char *) &fpregs, regno);
      
      if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
		  (PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
	perror_with_name (_("Couldn't set FP registers"));
    }
}