gen-avr-mmcu-texi.c revision 1.7 
1/* Copyright (C) 2012-2017 Free Software Foundation, Inc.
2   Contributed by Georg-Johann Lay (avr@gjlay.de)
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 <stdlib.h>
21#include <stdio.h>
22#include <string.h>
23
24#define IN_GEN_AVR_MMCU_TEXI
25
26#include "avr-devices.c"
27
28static const char*
29mcu_name[sizeof avr_mcu_types / sizeof avr_mcu_types[0]];
30
31static int letter (char c)
32{
33  return c >= 'a' && c <= 'z';
34}
35
36static int digit (char c)
37{
38  return c >= '0' && c <= '9';
39}
40
41static int
42comparator (const void *va, const void *vb)
43{
44  const char *a = *(const char* const*) va;
45  const char *b = *(const char* const*) vb;
46
47  while (*a && *b)
48    {
49      /* Make letters smaller than digits so that `atmega16a' follows
50         `atmega16' without `atmega161' etc. between them.  */
51
52      if (letter (*a) && digit (*b))
53        return -1;
54
55      if (digit (*a) && letter (*b))
56        return 1;
57
58      if (*a != *b)
59        return *a - *b;
60
61      a++;
62      b++;
63    }
64
65  return *a - *b;
66}
67
68static void
69print_mcus (size_t n_mcus)
70{
71  int duplicate = 0;
72  size_t i;
73
74  if (!n_mcus)
75    return;
76
77  qsort (mcu_name, n_mcus, sizeof (char*), comparator);
78
79  printf ("@*@var{mcu}@tie{}=");
80
81  for (i = 0; i < n_mcus; i++)
82    {
83      printf (" @code{%s}%s", mcu_name[i], i == n_mcus-1 ? ".\n\n" : ",");
84
85      if (i && !strcmp (mcu_name[i], mcu_name[i-1]))
86        {
87          /* Sanity-check: Fail on devices that are present more than once.  */
88
89          duplicate = 1;
90          fprintf (stderr, "error: duplicate device: %s\n", mcu_name[i]);
91        }
92    }
93
94  if (duplicate)
95    exit (1);
96}
97
98int main (void)
99{
100  enum avr_arch_id arch_id = ARCH_UNKNOWN;
101  size_t i, n_mcus = 0;
102  const avr_mcu_t *mcu;
103
104  printf ("@c Copyright (C) 2012-2017 Free Software Foundation, Inc.\n");
105  printf ("@c This is part of the GCC manual.\n");
106  printf ("@c For copying conditions, see the file "
107          "gcc/doc/include/fdl.texi.\n\n");
108
109  printf ("@c This file is generated automatically using\n");
110  printf ("@c gcc/config/avr/gen-avr-mmcu-texi.c from:\n");
111  printf ("@c    gcc/config/avr/avr-arch.h\n");
112  printf ("@c    gcc/config/avr/avr-devices.c\n");
113  printf ("@c    gcc/config/avr/avr-mcus.def\n\n");
114
115  printf ("@c Please do not edit manually.\n\n");
116
117  printf ("@table @code\n\n");
118
119  for (mcu = avr_mcu_types; mcu->name; mcu++)
120    {
121      if (mcu->macro == NULL)
122        {
123          arch_id = mcu->arch_id;
124
125          /* Start a new architecture:  Flush the MCUs collected so far.  */
126
127          print_mcus (n_mcus);
128          n_mcus = 0;
129
130          for (i = 0; i < sizeof (avr_texinfo) / sizeof (*avr_texinfo); i++)
131            if (arch_id == avr_texinfo[i].arch_id)
132              printf ("@item %s\n%s\n", mcu->name, avr_texinfo[i].texinfo);
133        }
134      else if (arch_id == (enum avr_arch_id) mcu->arch_id)
135        {
136          mcu_name[n_mcus++] = mcu->name;
137        }
138    }
139
140  print_mcus (n_mcus);
141  printf ("@end table\n");
142
143  return EXIT_SUCCESS;
144}
145