1 /* gen-protos.c - massages a list of prototypes, for use by fixproto.
2 Copyright (C) 1993, 1994 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify it
5 under the terms of the GNU General Public License as published by the
6 Free Software Foundation; either version 2, or (at your option) any
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
23 #define HASH_SIZE 2503 /* a prime */
25 int hash_tab[HASH_SIZE];
30 /* Avoid error if config defines abort as fancy_abort.
31 It's not worth "really" implementing this because ordinary
32 compiler users never run fix-header. */
50 fprintf (outf, "struct fn_decl std_protos[] = {\n");
54 int c = skip_spaces (inf, ' ');
55 int param_nesting = 1;
56 char *param_start, *param_end, *decl_start,
57 *name_start, *name_end;
61 linebuf.ptr = linebuf.base;
63 c = read_upto (inf, &linebuf, '\n');
64 if (linebuf.base[0] == '#') /* skip cpp command */
66 if (linebuf.base[0] == '\0') /* skip empty line */
69 ptr = linebuf.ptr - 1;
70 while (*ptr == ' ' || *ptr == '\t') ptr--;
73 fprintf (stderr, "Funny input line: %s\n", linebuf.base);
76 while (*ptr == ' ' || *ptr == '\t') ptr--;
79 fprintf (stderr, "Funny input line: %s\n", linebuf.base);
86 if (c == '(' && --param_nesting == 0)
94 while (*ptr == ' ' || *ptr == '\t') ptr--;
99 fprintf (stderr, "%s: Can't handle this complex prototype: %s\n",
100 argv[0], linebuf.base);
105 while (isalnum (*ptr) || *ptr == '_') --ptr;
107 while (*ptr == ' ' || *ptr == '\t') ptr--;
113 decl_start = linebuf.base;
114 if (strncmp (decl_start, "typedef ", 8) == 0)
116 if (strncmp (decl_start, "extern ", 7) == 0)
120 /* NOTE: If you edit this,
121 also edit lookup_std_proto in fix-header.c !! */
122 i = hash (name_start) % HASH_SIZE;
124 if (hash_tab[i] != 0)
128 i = (i+1) % HASH_SIZE;
131 if (hash_tab[i] == 0)
135 hash_tab[i] = next_index;
137 fprintf (outf, " {\"%s\", \"%s\", \"%s\" },\n",
138 name_start, decl_start, param_start);
145 fprintf (outf, "{0, 0, 0}\n};\n");
148 fprintf (outf, "#define HASH_SIZE %d\n", HASH_SIZE);
149 fprintf (outf, "short hash_tab[HASH_SIZE] = {\n");
150 for (i = 0; i < HASH_SIZE; i++)
151 fprintf (outf, " %d,\n", hash_tab[i]);
152 fprintf (outf, "};\n");