C++ (Cpp) init_registers_arm_with_vfpv3示例

示例#1

文件： linux-arm-low.c 项目： Akheon23/chromecast-mirrored-source.toolchain

static void
arm_arch_setup (void)
{
  arm_hwcap = 0;
  if (arm_get_hwcap (&arm_hwcap) == 0)
    {
      init_registers_arm ();
      return;
    }

  /* gdbserver assumes that only one of VFP or IWMMXT is available, which may
     not be true.  In that case, gdbserver fails at run-time with "Unknown
     register d0 requested".  For now, pretend IWMMXT is missing when both are
     available. */
  if ((arm_hwcap & HWCAP_VFP) && (arm_hwcap & HWCAP_IWMMXT))
      arm_hwcap &= ~HWCAP_IWMMXT;

  if (arm_hwcap & HWCAP_IWMMXT)
    {
      init_registers_arm_with_iwmmxt ();
      return;
    }

  if (arm_hwcap & HWCAP_VFP)
    {
      int pid;
      char *buf;

      /* NEON implies either no VFP, or VFPv3-D32.  We only support
	 it with VFP.  */
      if (arm_hwcap & HWCAP_NEON)
	init_registers_arm_with_neon ();
      else if ((arm_hwcap & (HWCAP_VFPv3 | HWCAP_VFPv3D16)) == HWCAP_VFPv3)
	init_registers_arm_with_vfpv3 ();
      else
	init_registers_arm_with_vfpv2 ();

      /* Now make sure that the kernel supports reading these
	 registers.  Support was added in 2.6.30.  */
      pid = lwpid_of (get_thread_lwp (current_inferior));
      errno = 0;
      buf = malloc (32 * 8 + 4);
      if (ptrace (PTRACE_GETVFPREGS, pid, 0, buf) < 0
	  && errno == EIO)
	{
	  arm_hwcap = 0;
	  init_registers_arm ();
	}
      free (buf);

      return;
    }

  /* The default configuration uses legacy FPA registers, probably
     simulated.  */
  init_registers_arm ();
}

示例#2

文件： linux-arm-low.c 项目： neon12345/gdb

void
initialize_low_arch (void)
{
  /* Initialize the Linux target descriptions.  */
  init_registers_arm ();
  init_registers_arm_with_iwmmxt ();
  init_registers_arm_with_vfpv2 ();
  init_registers_arm_with_vfpv3 ();
  init_registers_arm_with_neon ();

  initialize_regsets_info (&arm_regsets_info);
}

示例#3

文件： linux-arm-low.c 项目： GunioRobot/macgdb

static void
arm_arch_setup (void)
{
  arm_hwcap = 0;
  if (arm_get_hwcap (&arm_hwcap) == 0)
    {
      init_registers_arm ();
      return;
    }

  if (arm_hwcap & HWCAP_IWMMXT)
    {
      init_registers_arm_with_iwmmxt ();
      return;
    }

  if (arm_hwcap & HWCAP_VFP)
    {
      int pid;
      char *buf;

      /* NEON implies either no VFP, or VFPv3-D32.  We only support
	 it with VFP.  */
      if (arm_hwcap & HWCAP_NEON)
	init_registers_arm_with_neon ();
      else if ((arm_hwcap & (HWCAP_VFPv3 | HWCAP_VFPv3D16)) == HWCAP_VFPv3)
	init_registers_arm_with_vfpv3 ();
      else
	init_registers_arm_with_vfpv2 ();

      /* Now make sure that the kernel supports reading these
	 registers.  Support was added in 2.6.30.  */
      pid = lwpid_of (get_thread_lwp (current_inferior));
      errno = 0;
      buf = malloc (32 * 8 + 4);
      if (ptrace (PTRACE_GETVFPREGS, pid, 0, buf) < 0
	  && errno == EIO)
	{
	  arm_hwcap = 0;
	  init_registers_arm ();
	}
      free (buf);

      return;
    }

  /* The default configuration uses legacy FPA registers, probably
     simulated.  */
  init_registers_arm ();
}