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795cff42 | 1 | /* Subroutines for the gcc driver. |
71e45bc2 | 2 | Copyright (C) 2009, 2010, 2011, 2012 Free Software Foundation, Inc. |
795cff42 | 3 | Contributed by Anatoly Sokolov <aesok@post.ru> |
4 | ||
5 | This file is part of GCC. | |
6 | ||
7 | GCC is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GCC is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GCC; see the file COPYING3. If not see | |
19 | <http://www.gnu.org/licenses/>. */ | |
20 | ||
21 | #include "config.h" | |
22 | #include "system.h" | |
23 | #include "coretypes.h" | |
24 | #include "tm.h" | |
795cff42 | 25 | |
26 | /* Current architecture. */ | |
27 | const struct base_arch_s *avr_current_arch = NULL; | |
28 | ||
29 | /* Current device. */ | |
30 | const struct mcu_type_s *avr_current_device = NULL; | |
31 | ||
32 | /* Initialize avr_current_arch and avr_current_device variables. */ | |
33 | ||
34 | static void | |
35 | avr_set_current_device (const char *name) | |
36 | { | |
37 | ||
38 | if (NULL != avr_current_arch) | |
39 | return; | |
40 | ||
41 | for (avr_current_device = avr_mcu_types; avr_current_device->name; | |
42 | avr_current_device++) | |
43 | { | |
44 | if (strcmp (avr_current_device->name, name) == 0) | |
45 | break; | |
46 | } | |
47 | ||
48 | avr_current_arch = &avr_arch_types[avr_current_device->arch]; | |
49 | } | |
50 | ||
51 | /* Returns command line parameters that describe the device architecture. */ | |
52 | ||
53 | const char * | |
54 | avr_device_to_arch (int argc, const char **argv) | |
55 | { | |
56 | if (0 == argc) | |
36f949a2 | 57 | return NULL; |
795cff42 | 58 | |
59 | avr_set_current_device (argv[0]); | |
60 | ||
61 | return concat ("-m ", avr_current_arch->arch_name, NULL); | |
62 | } | |
63 | ||
64 | /* Returns command line parameters that describe start of date section. */ | |
65 | ||
66 | const char * | |
67 | avr_device_to_data_start (int argc, const char **argv) | |
68 | { | |
69 | unsigned long data_section_start; | |
70 | char data_section_start_str[16]; | |
71 | ||
72 | if (0 == argc) | |
36f949a2 | 73 | return NULL; |
795cff42 | 74 | |
75 | avr_set_current_device (argv[0]); | |
76 | ||
77 | if (avr_current_device->data_section_start | |
78 | == avr_current_arch->default_data_section_start) | |
79 | return NULL; | |
80 | ||
81 | data_section_start = 0x800000 + avr_current_device->data_section_start; | |
82 | ||
83 | snprintf (data_section_start_str, sizeof(data_section_start_str) - 1, | |
84 | "0x%lX", data_section_start); | |
85 | ||
86 | return concat ("-Tdata ", data_section_start_str, NULL); | |
87 | } | |
88 | ||
89 | /* Returns command line parameters that describe the device startfile. */ | |
90 | ||
91 | const char * | |
92 | avr_device_to_startfiles (int argc, const char **argv) | |
93 | { | |
94 | if (0 == argc) | |
36f949a2 | 95 | return NULL; |
795cff42 | 96 | |
97 | avr_set_current_device (argv[0]); | |
98 | ||
99 | return concat ("crt", avr_current_device->library_name, ".o%s", NULL); | |
100 | } | |
101 | ||
102 | /* Returns command line parameters that describe the device library. */ | |
103 | ||
104 | const char * | |
105 | avr_device_to_devicelib (int argc, const char **argv) | |
106 | { | |
107 | if (0 == argc) | |
36f949a2 | 108 | return NULL; |
795cff42 | 109 | |
110 | avr_set_current_device (argv[0]); | |
111 | ||
112 | return concat ("-l", avr_current_device->library_name, NULL); | |
113 | } | |
114 | ||
d32d7e3a | 115 | const char* |
116 | avr_device_to_sp8 (int argc, const char **argv) | |
117 | { | |
118 | if (0 == argc) | |
119 | return NULL; | |
120 | ||
121 | avr_set_current_device (argv[0]); | |
122 | ||
123 | /* Leave "avr2" and "avr25" alone. These two architectures are | |
124 | the only ones that mix devices with 8-bit SP and 16-bit SP. | |
125 | -msp8 is set by mmultilib machinery. */ | |
126 | ||
127 | if (avr_current_device->macro == NULL | |
128 | && (avr_current_device->arch == ARCH_AVR2 | |
129 | || avr_current_device->arch == ARCH_AVR25)) | |
130 | return ""; | |
131 | ||
132 | return avr_current_device->short_sp | |
133 | ? "-msp8" | |
134 | : "%<msp8"; | |
135 | } |