Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* Generate kernel symbol version hashes. |
| 2 | Copyright 1996, 1997 Linux International. |
| 3 | |
| 4 | New implementation contributed by Richard Henderson <rth@tamu.edu> |
| 5 | Based on original work by Bjorn Ekwall <bj0rn@blox.se> |
| 6 | |
| 7 | This file was part of the Linux modutils 2.4.22: moved back into the |
| 8 | kernel sources by Rusty Russell/Kai Germaschewski. |
| 9 | |
| 10 | This program is free software; you can redistribute it and/or modify it |
| 11 | under the terms of the GNU General Public License as published by the |
| 12 | Free Software Foundation; either version 2 of the License, or (at your |
| 13 | option) any later version. |
| 14 | |
| 15 | This program is distributed in the hope that it will be useful, but |
| 16 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 18 | General Public License for more details. |
| 19 | |
| 20 | You should have received a copy of the GNU General Public License |
| 21 | along with this program; if not, write to the Free Software Foundation, |
| 22 | Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 23 | |
| 24 | #include <stdio.h> |
| 25 | #include <string.h> |
| 26 | #include <stdlib.h> |
| 27 | #include <unistd.h> |
| 28 | #include <assert.h> |
| 29 | #include <stdarg.h> |
| 30 | #ifdef __GNU_LIBRARY__ |
| 31 | #include <getopt.h> |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 32 | #endif /* __GNU_LIBRARY__ */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | |
| 34 | #include "genksyms.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | /*----------------------------------------------------------------------*/ |
| 36 | |
| 37 | #define HASH_BUCKETS 4096 |
| 38 | |
| 39 | static struct symbol *symtab[HASH_BUCKETS]; |
Sam Ravnborg | ce56068 | 2006-03-12 23:26:29 +0100 | [diff] [blame] | 40 | static FILE *debugfile; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | |
| 42 | int cur_line = 1; |
Sam Ravnborg | ce56068 | 2006-03-12 23:26:29 +0100 | [diff] [blame] | 43 | char *cur_filename; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | |
Sam Ravnborg | ce56068 | 2006-03-12 23:26:29 +0100 | [diff] [blame] | 45 | static int flag_debug, flag_dump_defs, flag_warnings; |
| 46 | static const char *arch = ""; |
| 47 | static const char *mod_prefix = ""; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | |
| 49 | static int errors; |
| 50 | static int nsyms; |
| 51 | |
| 52 | static struct symbol *expansion_trail; |
| 53 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 54 | static const char *const symbol_type_name[] = { |
| 55 | "normal", "typedef", "enum", "struct", "union" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | }; |
| 57 | |
Sam Ravnborg | ce56068 | 2006-03-12 23:26:29 +0100 | [diff] [blame] | 58 | static int equal_list(struct string_list *a, struct string_list *b); |
| 59 | static void print_list(FILE * f, struct string_list *list); |
| 60 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | /*----------------------------------------------------------------------*/ |
| 62 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 63 | static const unsigned int crctab32[] = { |
| 64 | 0x00000000U, 0x77073096U, 0xee0e612cU, 0x990951baU, 0x076dc419U, |
| 65 | 0x706af48fU, 0xe963a535U, 0x9e6495a3U, 0x0edb8832U, 0x79dcb8a4U, |
| 66 | 0xe0d5e91eU, 0x97d2d988U, 0x09b64c2bU, 0x7eb17cbdU, 0xe7b82d07U, |
| 67 | 0x90bf1d91U, 0x1db71064U, 0x6ab020f2U, 0xf3b97148U, 0x84be41deU, |
| 68 | 0x1adad47dU, 0x6ddde4ebU, 0xf4d4b551U, 0x83d385c7U, 0x136c9856U, |
| 69 | 0x646ba8c0U, 0xfd62f97aU, 0x8a65c9ecU, 0x14015c4fU, 0x63066cd9U, |
| 70 | 0xfa0f3d63U, 0x8d080df5U, 0x3b6e20c8U, 0x4c69105eU, 0xd56041e4U, |
| 71 | 0xa2677172U, 0x3c03e4d1U, 0x4b04d447U, 0xd20d85fdU, 0xa50ab56bU, |
| 72 | 0x35b5a8faU, 0x42b2986cU, 0xdbbbc9d6U, 0xacbcf940U, 0x32d86ce3U, |
| 73 | 0x45df5c75U, 0xdcd60dcfU, 0xabd13d59U, 0x26d930acU, 0x51de003aU, |
| 74 | 0xc8d75180U, 0xbfd06116U, 0x21b4f4b5U, 0x56b3c423U, 0xcfba9599U, |
| 75 | 0xb8bda50fU, 0x2802b89eU, 0x5f058808U, 0xc60cd9b2U, 0xb10be924U, |
| 76 | 0x2f6f7c87U, 0x58684c11U, 0xc1611dabU, 0xb6662d3dU, 0x76dc4190U, |
| 77 | 0x01db7106U, 0x98d220bcU, 0xefd5102aU, 0x71b18589U, 0x06b6b51fU, |
| 78 | 0x9fbfe4a5U, 0xe8b8d433U, 0x7807c9a2U, 0x0f00f934U, 0x9609a88eU, |
| 79 | 0xe10e9818U, 0x7f6a0dbbU, 0x086d3d2dU, 0x91646c97U, 0xe6635c01U, |
| 80 | 0x6b6b51f4U, 0x1c6c6162U, 0x856530d8U, 0xf262004eU, 0x6c0695edU, |
| 81 | 0x1b01a57bU, 0x8208f4c1U, 0xf50fc457U, 0x65b0d9c6U, 0x12b7e950U, |
| 82 | 0x8bbeb8eaU, 0xfcb9887cU, 0x62dd1ddfU, 0x15da2d49U, 0x8cd37cf3U, |
| 83 | 0xfbd44c65U, 0x4db26158U, 0x3ab551ceU, 0xa3bc0074U, 0xd4bb30e2U, |
| 84 | 0x4adfa541U, 0x3dd895d7U, 0xa4d1c46dU, 0xd3d6f4fbU, 0x4369e96aU, |
| 85 | 0x346ed9fcU, 0xad678846U, 0xda60b8d0U, 0x44042d73U, 0x33031de5U, |
| 86 | 0xaa0a4c5fU, 0xdd0d7cc9U, 0x5005713cU, 0x270241aaU, 0xbe0b1010U, |
| 87 | 0xc90c2086U, 0x5768b525U, 0x206f85b3U, 0xb966d409U, 0xce61e49fU, |
| 88 | 0x5edef90eU, 0x29d9c998U, 0xb0d09822U, 0xc7d7a8b4U, 0x59b33d17U, |
| 89 | 0x2eb40d81U, 0xb7bd5c3bU, 0xc0ba6cadU, 0xedb88320U, 0x9abfb3b6U, |
| 90 | 0x03b6e20cU, 0x74b1d29aU, 0xead54739U, 0x9dd277afU, 0x04db2615U, |
| 91 | 0x73dc1683U, 0xe3630b12U, 0x94643b84U, 0x0d6d6a3eU, 0x7a6a5aa8U, |
| 92 | 0xe40ecf0bU, 0x9309ff9dU, 0x0a00ae27U, 0x7d079eb1U, 0xf00f9344U, |
| 93 | 0x8708a3d2U, 0x1e01f268U, 0x6906c2feU, 0xf762575dU, 0x806567cbU, |
| 94 | 0x196c3671U, 0x6e6b06e7U, 0xfed41b76U, 0x89d32be0U, 0x10da7a5aU, |
| 95 | 0x67dd4accU, 0xf9b9df6fU, 0x8ebeeff9U, 0x17b7be43U, 0x60b08ed5U, |
| 96 | 0xd6d6a3e8U, 0xa1d1937eU, 0x38d8c2c4U, 0x4fdff252U, 0xd1bb67f1U, |
| 97 | 0xa6bc5767U, 0x3fb506ddU, 0x48b2364bU, 0xd80d2bdaU, 0xaf0a1b4cU, |
| 98 | 0x36034af6U, 0x41047a60U, 0xdf60efc3U, 0xa867df55U, 0x316e8eefU, |
| 99 | 0x4669be79U, 0xcb61b38cU, 0xbc66831aU, 0x256fd2a0U, 0x5268e236U, |
| 100 | 0xcc0c7795U, 0xbb0b4703U, 0x220216b9U, 0x5505262fU, 0xc5ba3bbeU, |
| 101 | 0xb2bd0b28U, 0x2bb45a92U, 0x5cb36a04U, 0xc2d7ffa7U, 0xb5d0cf31U, |
| 102 | 0x2cd99e8bU, 0x5bdeae1dU, 0x9b64c2b0U, 0xec63f226U, 0x756aa39cU, |
| 103 | 0x026d930aU, 0x9c0906a9U, 0xeb0e363fU, 0x72076785U, 0x05005713U, |
| 104 | 0x95bf4a82U, 0xe2b87a14U, 0x7bb12baeU, 0x0cb61b38U, 0x92d28e9bU, |
| 105 | 0xe5d5be0dU, 0x7cdcefb7U, 0x0bdbdf21U, 0x86d3d2d4U, 0xf1d4e242U, |
| 106 | 0x68ddb3f8U, 0x1fda836eU, 0x81be16cdU, 0xf6b9265bU, 0x6fb077e1U, |
| 107 | 0x18b74777U, 0x88085ae6U, 0xff0f6a70U, 0x66063bcaU, 0x11010b5cU, |
| 108 | 0x8f659effU, 0xf862ae69U, 0x616bffd3U, 0x166ccf45U, 0xa00ae278U, |
| 109 | 0xd70dd2eeU, 0x4e048354U, 0x3903b3c2U, 0xa7672661U, 0xd06016f7U, |
| 110 | 0x4969474dU, 0x3e6e77dbU, 0xaed16a4aU, 0xd9d65adcU, 0x40df0b66U, |
| 111 | 0x37d83bf0U, 0xa9bcae53U, 0xdebb9ec5U, 0x47b2cf7fU, 0x30b5ffe9U, |
| 112 | 0xbdbdf21cU, 0xcabac28aU, 0x53b39330U, 0x24b4a3a6U, 0xbad03605U, |
| 113 | 0xcdd70693U, 0x54de5729U, 0x23d967bfU, 0xb3667a2eU, 0xc4614ab8U, |
| 114 | 0x5d681b02U, 0x2a6f2b94U, 0xb40bbe37U, 0xc30c8ea1U, 0x5a05df1bU, |
| 115 | 0x2d02ef8dU |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | }; |
| 117 | |
Sam Ravnborg | ce56068 | 2006-03-12 23:26:29 +0100 | [diff] [blame] | 118 | static unsigned long partial_crc32_one(unsigned char c, unsigned long crc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | { |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 120 | return crctab32[(crc ^ c) & 0xff] ^ (crc >> 8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | } |
| 122 | |
Sam Ravnborg | ce56068 | 2006-03-12 23:26:29 +0100 | [diff] [blame] | 123 | static unsigned long partial_crc32(const char *s, unsigned long crc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | { |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 125 | while (*s) |
| 126 | crc = partial_crc32_one(*s++, crc); |
| 127 | return crc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | } |
| 129 | |
Sam Ravnborg | ce56068 | 2006-03-12 23:26:29 +0100 | [diff] [blame] | 130 | static unsigned long crc32(const char *s) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | { |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 132 | return partial_crc32(s, 0xffffffff) ^ 0xffffffff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | } |
| 134 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | /*----------------------------------------------------------------------*/ |
| 136 | |
Sam Ravnborg | ce56068 | 2006-03-12 23:26:29 +0100 | [diff] [blame] | 137 | static enum symbol_type map_to_ns(enum symbol_type t) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | { |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 139 | if (t == SYM_TYPEDEF) |
| 140 | t = SYM_NORMAL; |
| 141 | else if (t == SYM_UNION) |
| 142 | t = SYM_STRUCT; |
| 143 | return t; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | } |
| 145 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 146 | struct symbol *find_symbol(const char *name, enum symbol_type ns) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | { |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 148 | unsigned long h = crc32(name) % HASH_BUCKETS; |
| 149 | struct symbol *sym; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 151 | for (sym = symtab[h]; sym; sym = sym->hash_next) |
Sam Ravnborg | ce56068 | 2006-03-12 23:26:29 +0100 | [diff] [blame] | 152 | if (map_to_ns(sym->type) == map_to_ns(ns) && |
| 153 | strcmp(name, sym->name) == 0) |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 154 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | return sym; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | } |
| 158 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 159 | struct symbol *add_symbol(const char *name, enum symbol_type type, |
| 160 | struct string_list *defn, int is_extern) |
| 161 | { |
| 162 | unsigned long h = crc32(name) % HASH_BUCKETS; |
| 163 | struct symbol *sym; |
| 164 | |
Sam Ravnborg | ce56068 | 2006-03-12 23:26:29 +0100 | [diff] [blame] | 165 | for (sym = symtab[h]; sym; sym = sym->hash_next) { |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 166 | if (map_to_ns(sym->type) == map_to_ns(type) |
| 167 | && strcmp(name, sym->name) == 0) { |
| 168 | if (!equal_list(sym->defn, defn)) |
| 169 | error_with_pos("redefinition of %s", name); |
| 170 | return sym; |
| 171 | } |
Sam Ravnborg | ce56068 | 2006-03-12 23:26:29 +0100 | [diff] [blame] | 172 | } |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 173 | |
| 174 | sym = xmalloc(sizeof(*sym)); |
| 175 | sym->name = name; |
| 176 | sym->type = type; |
| 177 | sym->defn = defn; |
| 178 | sym->expansion_trail = NULL; |
| 179 | sym->is_extern = is_extern; |
| 180 | |
| 181 | sym->hash_next = symtab[h]; |
| 182 | symtab[h] = sym; |
| 183 | |
| 184 | if (flag_debug) { |
| 185 | fprintf(debugfile, "Defn for %s %s == <", |
| 186 | symbol_type_name[type], name); |
| 187 | if (is_extern) |
| 188 | fputs("extern ", debugfile); |
| 189 | print_list(debugfile, defn); |
| 190 | fputs(">\n", debugfile); |
| 191 | } |
| 192 | |
| 193 | ++nsyms; |
| 194 | return sym; |
| 195 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | |
| 197 | /*----------------------------------------------------------------------*/ |
| 198 | |
Sam Ravnborg | ce56068 | 2006-03-12 23:26:29 +0100 | [diff] [blame] | 199 | void free_node(struct string_list *node) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | { |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 201 | free(node->string); |
| 202 | free(node); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | } |
| 204 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 205 | void free_list(struct string_list *s, struct string_list *e) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | { |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 207 | while (s != e) { |
| 208 | struct string_list *next = s->next; |
| 209 | free_node(s); |
| 210 | s = next; |
| 211 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | } |
| 213 | |
Sam Ravnborg | ce56068 | 2006-03-12 23:26:29 +0100 | [diff] [blame] | 214 | struct string_list *copy_node(struct string_list *node) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | { |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 216 | struct string_list *newnode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 218 | newnode = xmalloc(sizeof(*newnode)); |
| 219 | newnode->string = xstrdup(node->string); |
| 220 | newnode->tag = node->tag; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 222 | return newnode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | } |
| 224 | |
Sam Ravnborg | ce56068 | 2006-03-12 23:26:29 +0100 | [diff] [blame] | 225 | static int equal_list(struct string_list *a, struct string_list *b) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | { |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 227 | while (a && b) { |
| 228 | if (a->tag != b->tag || strcmp(a->string, b->string)) |
| 229 | return 0; |
| 230 | a = a->next; |
| 231 | b = b->next; |
| 232 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 234 | return !a && !b; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | } |
| 236 | |
Sam Ravnborg | ce56068 | 2006-03-12 23:26:29 +0100 | [diff] [blame] | 237 | static void print_node(FILE * f, struct string_list *list) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | { |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 239 | switch (list->tag) { |
| 240 | case SYM_STRUCT: |
| 241 | putc('s', f); |
| 242 | goto printit; |
| 243 | case SYM_UNION: |
| 244 | putc('u', f); |
| 245 | goto printit; |
| 246 | case SYM_ENUM: |
| 247 | putc('e', f); |
| 248 | goto printit; |
| 249 | case SYM_TYPEDEF: |
| 250 | putc('t', f); |
| 251 | goto printit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 253 | printit: |
| 254 | putc('#', f); |
| 255 | case SYM_NORMAL: |
| 256 | fputs(list->string, f); |
| 257 | break; |
| 258 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | } |
| 260 | |
Sam Ravnborg | ce56068 | 2006-03-12 23:26:29 +0100 | [diff] [blame] | 261 | static void print_list(FILE * f, struct string_list *list) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | { |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 263 | struct string_list **e, **b; |
| 264 | struct string_list *tmp, **tmp2; |
| 265 | int elem = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 267 | if (list == NULL) { |
| 268 | fputs("(nil)", f); |
| 269 | return; |
| 270 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 272 | tmp = list; |
| 273 | while ((tmp = tmp->next) != NULL) |
| 274 | elem++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 276 | b = alloca(elem * sizeof(*e)); |
| 277 | e = b + elem; |
| 278 | tmp2 = e - 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 279 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 280 | (*tmp2--) = list; |
| 281 | while ((list = list->next) != NULL) |
| 282 | *(tmp2--) = list; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 284 | while (b != e) { |
| 285 | print_node(f, *b++); |
| 286 | putc(' ', f); |
| 287 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | } |
| 289 | |
Sam Ravnborg | ce56068 | 2006-03-12 23:26:29 +0100 | [diff] [blame] | 290 | static unsigned long expand_and_crc_list(struct string_list *list, |
| 291 | unsigned long crc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | { |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 293 | struct string_list **e, **b; |
| 294 | struct string_list *tmp, **tmp2; |
| 295 | int elem = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 297 | if (!list) |
| 298 | return crc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 300 | tmp = list; |
| 301 | while ((tmp = tmp->next) != NULL) |
| 302 | elem++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 304 | b = alloca(elem * sizeof(*e)); |
| 305 | e = b + elem; |
| 306 | tmp2 = e - 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 308 | *(tmp2--) = list; |
| 309 | while ((list = list->next) != NULL) |
| 310 | *(tmp2--) = list; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 312 | while (b != e) { |
| 313 | struct string_list *cur; |
| 314 | struct symbol *subsym; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 316 | cur = *(b++); |
| 317 | switch (cur->tag) { |
| 318 | case SYM_NORMAL: |
| 319 | if (flag_dump_defs) |
| 320 | fprintf(debugfile, "%s ", cur->string); |
| 321 | crc = partial_crc32(cur->string, crc); |
| 322 | crc = partial_crc32_one(' ', crc); |
| 323 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 325 | case SYM_TYPEDEF: |
| 326 | subsym = find_symbol(cur->string, cur->tag); |
| 327 | if (subsym->expansion_trail) { |
| 328 | if (flag_dump_defs) |
| 329 | fprintf(debugfile, "%s ", cur->string); |
| 330 | crc = partial_crc32(cur->string, crc); |
| 331 | crc = partial_crc32_one(' ', crc); |
| 332 | } else { |
| 333 | subsym->expansion_trail = expansion_trail; |
| 334 | expansion_trail = subsym; |
| 335 | crc = expand_and_crc_list(subsym->defn, crc); |
| 336 | } |
| 337 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 339 | case SYM_STRUCT: |
| 340 | case SYM_UNION: |
| 341 | case SYM_ENUM: |
| 342 | subsym = find_symbol(cur->string, cur->tag); |
| 343 | if (!subsym) { |
| 344 | struct string_list *n, *t = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 346 | error_with_pos("expand undefined %s %s", |
| 347 | symbol_type_name[cur->tag], |
| 348 | cur->string); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 350 | n = xmalloc(sizeof(*n)); |
| 351 | n->string = xstrdup(symbol_type_name[cur->tag]); |
| 352 | n->tag = SYM_NORMAL; |
| 353 | n->next = t; |
| 354 | t = n; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 356 | n = xmalloc(sizeof(*n)); |
| 357 | n->string = xstrdup(cur->string); |
| 358 | n->tag = SYM_NORMAL; |
| 359 | n->next = t; |
| 360 | t = n; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 362 | n = xmalloc(sizeof(*n)); |
| 363 | n->string = xstrdup("{ UNKNOWN }"); |
| 364 | n->tag = SYM_NORMAL; |
| 365 | n->next = t; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 367 | subsym = |
| 368 | add_symbol(cur->string, cur->tag, n, 0); |
| 369 | } |
| 370 | if (subsym->expansion_trail) { |
| 371 | if (flag_dump_defs) { |
| 372 | fprintf(debugfile, "%s %s ", |
| 373 | symbol_type_name[cur->tag], |
| 374 | cur->string); |
| 375 | } |
| 376 | |
Sam Ravnborg | ce56068 | 2006-03-12 23:26:29 +0100 | [diff] [blame] | 377 | crc = partial_crc32(symbol_type_name[cur->tag], |
| 378 | crc); |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 379 | crc = partial_crc32_one(' ', crc); |
| 380 | crc = partial_crc32(cur->string, crc); |
| 381 | crc = partial_crc32_one(' ', crc); |
| 382 | } else { |
| 383 | subsym->expansion_trail = expansion_trail; |
| 384 | expansion_trail = subsym; |
| 385 | crc = expand_and_crc_list(subsym->defn, crc); |
| 386 | } |
| 387 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 391 | return crc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | } |
| 393 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 394 | void export_symbol(const char *name) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | { |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 396 | struct symbol *sym; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 398 | sym = find_symbol(name, SYM_NORMAL); |
| 399 | if (!sym) |
| 400 | error_with_pos("export undefined symbol %s", name); |
| 401 | else { |
| 402 | unsigned long crc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 404 | if (flag_dump_defs) |
| 405 | fprintf(debugfile, "Export %s == <", name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 407 | expansion_trail = (struct symbol *)-1L; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 408 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 409 | crc = expand_and_crc_list(sym->defn, 0xffffffff) ^ 0xffffffff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 411 | sym = expansion_trail; |
| 412 | while (sym != (struct symbol *)-1L) { |
| 413 | struct symbol *n = sym->expansion_trail; |
| 414 | sym->expansion_trail = 0; |
| 415 | sym = n; |
| 416 | } |
| 417 | |
| 418 | if (flag_dump_defs) |
| 419 | fputs(">\n", debugfile); |
| 420 | |
| 421 | /* Used as a linker script. */ |
| 422 | printf("%s__crc_%s = 0x%08lx ;\n", mod_prefix, name, crc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | } |
| 425 | |
| 426 | /*----------------------------------------------------------------------*/ |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 427 | void error_with_pos(const char *fmt, ...) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | { |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 429 | va_list args; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 431 | if (flag_warnings) { |
| 432 | fprintf(stderr, "%s:%d: ", cur_filename ? : "<stdin>", |
| 433 | cur_line); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 434 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 435 | va_start(args, fmt); |
| 436 | vfprintf(stderr, fmt, args); |
| 437 | va_end(args); |
| 438 | putc('\n', stderr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 439 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 440 | errors++; |
| 441 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | } |
| 443 | |
Sam Ravnborg | ce56068 | 2006-03-12 23:26:29 +0100 | [diff] [blame] | 444 | static void genksyms_usage(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 445 | { |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 446 | fputs("Usage:\n" "genksyms [-dDwqhV] > /path/to/.tmp_obj.ver\n" "\n" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | #ifdef __GNU_LIBRARY__ |
| 448 | " -d, --debug Increment the debug level (repeatable)\n" |
| 449 | " -D, --dump Dump expanded symbol defs (for debugging only)\n" |
| 450 | " -w, --warnings Enable warnings\n" |
| 451 | " -q, --quiet Disable warnings (default)\n" |
| 452 | " -h, --help Print this message\n" |
| 453 | " -V, --version Print the release version\n" |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 454 | #else /* __GNU_LIBRARY__ */ |
| 455 | " -d Increment the debug level (repeatable)\n" |
| 456 | " -D Dump expanded symbol defs (for debugging only)\n" |
| 457 | " -w Enable warnings\n" |
| 458 | " -q Disable warnings (default)\n" |
| 459 | " -h Print this message\n" |
| 460 | " -V Print the release version\n" |
| 461 | #endif /* __GNU_LIBRARY__ */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | , stderr); |
| 463 | } |
| 464 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 465 | int main(int argc, char **argv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 466 | { |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 467 | int o; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 468 | |
| 469 | #ifdef __GNU_LIBRARY__ |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 470 | struct option long_opts[] = { |
| 471 | {"arch", 1, 0, 'a'}, |
| 472 | {"debug", 0, 0, 'd'}, |
| 473 | {"warnings", 0, 0, 'w'}, |
| 474 | {"quiet", 0, 0, 'q'}, |
| 475 | {"dump", 0, 0, 'D'}, |
| 476 | {"version", 0, 0, 'V'}, |
| 477 | {"help", 0, 0, 'h'}, |
| 478 | {0, 0, 0, 0} |
| 479 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 480 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 481 | while ((o = getopt_long(argc, argv, "a:dwqVDk:p:", |
| 482 | &long_opts[0], NULL)) != EOF) |
| 483 | #else /* __GNU_LIBRARY__ */ |
| 484 | while ((o = getopt(argc, argv, "a:dwqVDk:p:")) != EOF) |
| 485 | #endif /* __GNU_LIBRARY__ */ |
| 486 | switch (o) { |
| 487 | case 'a': |
| 488 | arch = optarg; |
| 489 | break; |
| 490 | case 'd': |
| 491 | flag_debug++; |
| 492 | break; |
| 493 | case 'w': |
| 494 | flag_warnings = 1; |
| 495 | break; |
| 496 | case 'q': |
| 497 | flag_warnings = 0; |
| 498 | break; |
| 499 | case 'V': |
| 500 | fputs("genksyms version 2.5.60\n", stderr); |
| 501 | break; |
| 502 | case 'D': |
| 503 | flag_dump_defs = 1; |
| 504 | break; |
| 505 | case 'h': |
| 506 | genksyms_usage(); |
| 507 | return 0; |
| 508 | default: |
| 509 | genksyms_usage(); |
| 510 | return 1; |
| 511 | } |
| 512 | if ((strcmp(arch, "v850") == 0) || (strcmp(arch, "h8300") == 0)) |
| 513 | mod_prefix = "_"; |
| 514 | { |
| 515 | extern int yydebug; |
| 516 | extern int yy_flex_debug; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 518 | yydebug = (flag_debug > 1); |
| 519 | yy_flex_debug = (flag_debug > 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 521 | debugfile = stderr; |
| 522 | /* setlinebuf(debugfile); */ |
| 523 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 525 | yyparse(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 527 | if (flag_debug) { |
| 528 | fprintf(debugfile, "Hash table occupancy %d/%d = %g\n", |
| 529 | nsyms, HASH_BUCKETS, |
| 530 | (double)nsyms / (double)HASH_BUCKETS); |
| 531 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 532 | |
Sam Ravnborg | 78c04153 | 2006-03-12 22:59:36 +0100 | [diff] [blame] | 533 | return errors != 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 534 | } |