1/* Common hooks for Texas Instruments MSP430.
2   Copyright (C) 2014-2022 Free Software Foundation, Inc.
3
4   This file is part of GCC.
5
6   GCC is free software; you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by
8   the Free Software Foundation; either version 3, or (at your option)
9   any later version.
10
11   GCC is distributed in the hope that it will be useful,
12   but WITHOUT ANY WARRANTY; without even the implied warranty of
13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   GNU General Public License for more details.
15
16   You should have received a copy of the GNU General Public License
17   along with GCC; see the file COPYING3.  If not see
18   <http://www.gnu.org/licenses/>.  */
19
20#include "config.h"
21#include "system.h"
22#include "coretypes.h"
23#include "diagnostic-core.h"
24#include "tm.h"
25#include "common/common-target.h"
26#include "common/common-target-def.h"
27#include "opts.h"
28#include "flags.h"
29
30/* Check for generic -mmcu= names here.  If found then we
31   convert to a baseline cpu name.  Otherwise we allow the option to
32   be passed on to the backend where it can be checked more fully.  */
33
34static bool
35msp430_handle_option (struct gcc_options *opts ATTRIBUTE_UNUSED,
36		      struct gcc_options *opts_set ATTRIBUTE_UNUSED,
37		      const struct cl_decoded_option *decoded,
38		      location_t loc ATTRIBUTE_UNUSED)
39{
40  switch (decoded->opt_index)
41    {
42    case OPT_mmcu_:
43      /* For backwards compatibility we recognise two generic MCU
44	 430X names.  However we want to be able to generate special C
45	 preprocessor defines for them, which is why we set target_mcu
46	 to NULL.  */
47      if (strcasecmp (decoded->arg, "msp430") == 0)
48	{
49	  target_cpu = MSP430_CPU_MSP430;
50	  target_mcu = NULL;
51	}
52      else if (strcasecmp (decoded->arg, "msp430x") == 0
53	       || strcasecmp (decoded->arg, "msp430xv2") == 0)
54	{
55	  target_cpu = MSP430_CPU_MSP430X;
56	  target_mcu = NULL;
57	}
58      break;
59    }
60
61  return true;
62}
63
64#undef  TARGET_HANDLE_OPTION
65#define TARGET_HANDLE_OPTION			msp430_handle_option
66
67struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;
68