1 /* Common hooks for Texas Instruments MSP430.
2 Copyright (C) 2014-2020 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 -mcpu= and -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
34 static bool
msp430_handle_option(struct gcc_options * opts ATTRIBUTE_UNUSED,struct gcc_options * opts_set ATTRIBUTE_UNUSED,const struct cl_decoded_option * decoded,location_t loc ATTRIBUTE_UNUSED)35 msp430_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_mcpu_:
43 if (strcasecmp (decoded->arg, "msp430x") == 0
44 || strcasecmp (decoded->arg, "msp430xv2") == 0
45 || strcasecmp (decoded->arg, "430x") == 0
46 || strcasecmp (decoded->arg, "430xv2") == 0)
47 {
48 target_cpu = "msp430x";
49 }
50 else if (strcasecmp (decoded->arg, "msp430") == 0
51 || strcasecmp (decoded->arg, "430") == 0)
52 {
53 target_cpu = "msp430";
54 }
55 else
56 {
57 error ("unrecognized argument of %<-mcpu%>: %s", decoded->arg);
58 return false;
59 }
60 break;
61
62 case OPT_mmcu_:
63 /* For backwards compatibility we recognise two generic MCU
64 430X names. However we want to be able to generate special C
65 preprocessor defines for them, which is why we set target_mcu
66 to NULL. */
67 if (strcasecmp (decoded->arg, "msp430") == 0)
68 {
69 target_cpu = "msp430";
70 target_mcu = NULL;
71 }
72 else if (strcasecmp (decoded->arg, "msp430x") == 0
73 || strcasecmp (decoded->arg, "msp430xv2") == 0)
74 {
75 target_cpu = "msp430x";
76 target_mcu = NULL;
77 }
78 break;
79 }
80
81 return true;
82 }
83
84 #undef TARGET_HANDLE_OPTION
85 #define TARGET_HANDLE_OPTION msp430_handle_option
86
87 struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;
88