scripts/mod/file2alias.c

   1 /* Simple code to turn various tables in an ELF file into alias definitions.
   2  * This deals with kernel datastructures where they should be
   3  * dealt with: in the kernel source.
   4  *
   5  * Copyright 2002-2003  Rusty Russell, IBM Corporation
   6  *           2003       Kai Germaschewski
   7  *
   8  *
   9  * This software may be used and distributed according to the terms
  10  * of the GNU General Public License, incorporated herein by reference.
  11  */
  12
  13 #include "modpost.h"
  14
  15 /* We use the ELF typedefs for kernel_ulong_t but bite the bullet and
  16  * use either stdint.h or inttypes.h for the rest. */
  17 #if KERNEL_ELFCLASS == ELFCLASS32
  18 typedef Elf32_Addr      kernel_ulong_t;
  19 #define BITS_PER_LONG 32
  20 #else
  21 typedef Elf64_Addr      kernel_ulong_t;
  22 #define BITS_PER_LONG 64
  23 #endif
  24 #ifdef __sun__
  25 #include <inttypes.h>
  26 #else
  27 #include <stdint.h>
  28 #endif
  29
  30 #include <ctype.h>
  31
  32 typedef uint32_t        __u32;
  33 typedef uint16_t        __u16;
  34 typedef unsigned char   __u8;
  35
  36 /* Big exception to the "don't include kernel headers into userspace, which
  37  * even potentially has different endianness and word sizes, since
  38  * we handle those differences explicitly below */
  39 #include "../../include/linux/mod_devicetable.h"
  40
  41 #define ADD(str, sep, cond, field)                              \
  42 do {                                                            \
  43         strcat(str, sep);                                       \
  44         if (cond)                                               \
  45                 sprintf(str + strlen(str),                      \
  46                         sizeof(field) == 1 ? "%02X" :           \
  47                         sizeof(field) == 2 ? "%04X" :           \
  48                         sizeof(field) == 4 ? "%08X" : "",       \
  49                         field);                                 \
  50         else                                                    \
  51                 sprintf(str + strlen(str), "*");                \
  52 } while(0)
  53
  54 /**
  55  * Check that sizeof(device_id type) are consistent with size of section
  56  * in .o file. If in-consistent then userspace and kernel does not agree
  57  * on actual size which is a bug.
  58  **/
  59 static void device_id_size_check(const char *modname, const char *device_id,
  60                                  unsigned long size, unsigned long id_size)
  61 {
  62         if (size % id_size || size < id_size) {
  63                 fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo "
  64                       "of the size of section __mod_%s_device_table=%lu.\n"
  65                       "Fix definition of struct %s_device_id "
  66                       "in mod_devicetable.h\n",
  67                       modname, device_id, id_size, device_id, size, device_id);
  68         }
  69 }
  70
  71 /* USB is special because the bcdDevice can be matched against a numeric range */
  72 /* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipN" */
  73 static void do_usb_entry(struct usb_device_id *id,
  74                          unsigned int bcdDevice_initial, int bcdDevice_initial_digits,
  75                          unsigned char range_lo, unsigned char range_hi,
  76                          struct module *mod)
  77 {
  78         char alias[500];
  79         strcpy(alias, "usb:");
  80         ADD(alias, "v", id->match_flags&USB_DEVICE_ID_MATCH_VENDOR,
  81             id->idVendor);
  82         ADD(alias, "p", id->match_flags&USB_DEVICE_ID_MATCH_PRODUCT,
  83             id->idProduct);
  84
  85         strcat(alias, "d");
  86         if (bcdDevice_initial_digits)
  87                 sprintf(alias + strlen(alias), "%0*X",
  88                         bcdDevice_initial_digits, bcdDevice_initial);
  89         if (range_lo == range_hi)
  90                 sprintf(alias + strlen(alias), "%u", range_lo);
  91         else if (range_lo > 0 || range_hi < 9)
  92                 sprintf(alias + strlen(alias), "[%u-%u]", range_lo, range_hi);
  93         if (bcdDevice_initial_digits < (sizeof(id->bcdDevice_lo) * 2 - 1))
  94                 strcat(alias, "*");
  95
  96         ADD(alias, "dc", id->match_flags&USB_DEVICE_ID_MATCH_DEV_CLASS,
  97             id->bDeviceClass);
  98         ADD(alias, "dsc",
  99             id->match_flags&USB_DEVICE_ID_MATCH_DEV_SUBCLASS,
 100             id->bDeviceSubClass);
 101         ADD(alias, "dp",
 102             id->match_flags&USB_DEVICE_ID_MATCH_DEV_PROTOCOL,
 103             id->bDeviceProtocol);
 104         ADD(alias, "ic",
 105             id->match_flags&USB_DEVICE_ID_MATCH_INT_CLASS,
 106             id->bInterfaceClass);
 107         ADD(alias, "isc",
 108             id->match_flags&USB_DEVICE_ID_MATCH_INT_SUBCLASS,
 109             id->bInterfaceSubClass);
 110         ADD(alias, "ip",
 111             id->match_flags&USB_DEVICE_ID_MATCH_INT_PROTOCOL,
 112             id->bInterfaceProtocol);
 113
 114         /* Always end in a wildcard, for future extension */
 115         if (alias[strlen(alias)-1] != '*')
 116                 strcat(alias, "*");
 117         buf_printf(&mod->dev_table_buf,
 118                    "MODULE_ALIAS(\"%s\");\n", alias);
 119 }
 120
 121 static void do_usb_entry_multi(struct usb_device_id *id, struct module *mod)
 122 {
 123         unsigned int devlo, devhi;
 124         unsigned char chi, clo;
 125         int ndigits;
 126
 127         id->match_flags = TO_NATIVE(id->match_flags);
 128         id->idVendor = TO_NATIVE(id->idVendor);
 129         id->idProduct = TO_NATIVE(id->idProduct);
 130
 131         devlo = id->match_flags & USB_DEVICE_ID_MATCH_DEV_LO ?
 132                 TO_NATIVE(id->bcdDevice_lo) : 0x0U;
 133         devhi = id->match_flags & USB_DEVICE_ID_MATCH_DEV_HI ?
 134                 TO_NATIVE(id->bcdDevice_hi) : ~0x0U;
 135
 136         /*
 137          * Some modules (visor) have empty slots as placeholder for
 138          * run-time specification that results in catch-all alias
 139          */
 140         if (!(id->idVendor | id->bDeviceClass | id->bInterfaceClass))
 141                 return;
 142
 143         /* Convert numeric bcdDevice range into fnmatch-able pattern(s) */
 144         for (ndigits = sizeof(id->bcdDevice_lo) * 2 - 1; devlo <= devhi; ndigits--) {
 145                 clo = devlo & 0xf;
 146                 chi = devhi & 0xf;
 147                 if (chi > 9)    /* it's bcd not hex */
 148                         chi = 9;
 149                 devlo >>= 4;
 150                 devhi >>= 4;
 151
 152                 if (devlo == devhi || !ndigits) {
 153                         do_usb_entry(id, devlo, ndigits, clo, chi, mod);
 154                         break;
 155                 }
 156
 157                 if (clo > 0)
 158                         do_usb_entry(id, devlo++, ndigits, clo, 9, mod);
 159
 160                 if (chi < 9)
 161                         do_usb_entry(id, devhi--, ndigits, 0, chi, mod);
 162         }
 163 }
 164
 165 static void do_usb_table(void *symval, unsigned long size,
 166                          struct module *mod)
 167 {
 168         unsigned int i;
 169         const unsigned long id_size = sizeof(struct usb_device_id);
 170
 171         device_id_size_check(mod->name, "usb", size, id_size);
 172
 173         /* Leave last one: it's the terminator. */
 174         size -= id_size;
 175
 176         for (i = 0; i < size; i += id_size)
 177                 do_usb_entry_multi(symval + i, mod);
 178 }
 179
 180 /* Looks like: ieee1394:venNmoNspNverN */
 181 static int do_ieee1394_entry(const char *filename,
 182                              struct ieee1394_device_id *id, char *alias)
 183 {
 184         id->match_flags = TO_NATIVE(id->match_flags);
 185         id->vendor_id = TO_NATIVE(id->vendor_id);
 186         id->model_id = TO_NATIVE(id->model_id);
 187         id->specifier_id = TO_NATIVE(id->specifier_id);
 188         id->version = TO_NATIVE(id->version);
 189
 190         strcpy(alias, "ieee1394:");
 191         ADD(alias, "ven", id->match_flags & IEEE1394_MATCH_VENDOR_ID,
 192             id->vendor_id);
 193         ADD(alias, "mo", id->match_flags & IEEE1394_MATCH_MODEL_ID,
 194             id->model_id);
 195         ADD(alias, "sp", id->match_flags & IEEE1394_MATCH_SPECIFIER_ID,
 196             id->specifier_id);
 197         ADD(alias, "ver", id->match_flags & IEEE1394_MATCH_VERSION,
 198             id->version);
 199
 200         return 1;
 201 }
 202
 203 /* Looks like: pci:vNdNsvNsdNbcNscNiN. */
 204 static int do_pci_entry(const char *filename,
 205                         struct pci_device_id *id, char *alias)
 206 {
 207         /* Class field can be divided into these three. */
 208         unsigned char baseclass, subclass, interface,
 209                 baseclass_mask, subclass_mask, interface_mask;
 210
 211         id->vendor = TO_NATIVE(id->vendor);
 212         id->device = TO_NATIVE(id->device);
 213         id->subvendor = TO_NATIVE(id->subvendor);
 214         id->subdevice = TO_NATIVE(id->subdevice);
 215         id->class = TO_NATIVE(id->class);
 216         id->class_mask = TO_NATIVE(id->class_mask);
 217
 218         strcpy(alias, "pci:");
 219         ADD(alias, "v", id->vendor != PCI_ANY_ID, id->vendor);
 220         ADD(alias, "d", id->device != PCI_ANY_ID, id->device);
 221         ADD(alias, "sv", id->subvendor != PCI_ANY_ID, id->subvendor);
 222         ADD(alias, "sd", id->subdevice != PCI_ANY_ID, id->subdevice);
 223
 224         baseclass = (id->class) >> 16;
 225         baseclass_mask = (id->class_mask) >> 16;
 226         subclass = (id->class) >> 8;
 227         subclass_mask = (id->class_mask) >> 8;
 228         interface = id->class;
 229         interface_mask = id->class_mask;
 230
 231         if ((baseclass_mask != 0 && baseclass_mask != 0xFF)
 232             || (subclass_mask != 0 && subclass_mask != 0xFF)
 233             || (interface_mask != 0 && interface_mask != 0xFF)) {
 234                 warn("Can't handle masks in %s:%04X\n",
 235                      filename, id->class_mask);
 236                 return 0;
 237         }
 238
 239         ADD(alias, "bc", baseclass_mask == 0xFF, baseclass);
 240         ADD(alias, "sc", subclass_mask == 0xFF, subclass);
 241         ADD(alias, "i", interface_mask == 0xFF, interface);
 242         return 1;
 243 }
 244
 245 /* looks like: "ccw:tNmNdtNdmN" */
 246 static int do_ccw_entry(const char *filename,
 247                         struct ccw_device_id *id, char *alias)
 248 {
 249         id->match_flags = TO_NATIVE(id->match_flags);
 250         id->cu_type = TO_NATIVE(id->cu_type);
 251         id->cu_model = TO_NATIVE(id->cu_model);
 252         id->dev_type = TO_NATIVE(id->dev_type);
 253         id->dev_model = TO_NATIVE(id->dev_model);
 254
 255         strcpy(alias, "ccw:");
 256         ADD(alias, "t", id->match_flags&CCW_DEVICE_ID_MATCH_CU_TYPE,
 257             id->cu_type);
 258         ADD(alias, "m", id->match_flags&CCW_DEVICE_ID_MATCH_CU_MODEL,
 259             id->cu_model);
 260         ADD(alias, "dt", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_TYPE,
 261             id->dev_type);
 262         ADD(alias, "dm", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_MODEL,
 263             id->dev_model);
 264         return 1;
 265 }
 266
 267 /* looks like: "ap:tN" */
 268 static int do_ap_entry(const char *filename,
 269                        struct ap_device_id *id, char *alias)
 270 {
 271         sprintf(alias, "ap:t%02X", id->dev_type);
 272         return 1;
 273 }
 274
 275 /* Looks like: "serio:tyNprNidNexN" */
 276 static int do_serio_entry(const char *filename,
 277                           struct serio_device_id *id, char *alias)
 278 {
 279         id->type = TO_NATIVE(id->type);
 280         id->proto = TO_NATIVE(id->proto);
 281         id->id = TO_NATIVE(id->id);
 282         id->extra = TO_NATIVE(id->extra);
 283
 284         strcpy(alias, "serio:");
 285         ADD(alias, "ty", id->type != SERIO_ANY, id->type);
 286         ADD(alias, "pr", id->proto != SERIO_ANY, id->proto);
 287         ADD(alias, "id", id->id != SERIO_ANY, id->id);
 288         ADD(alias, "ex", id->extra != SERIO_ANY, id->extra);
 289
 290         return 1;
 291 }
 292
 293 /* looks like: "acpi:ACPI0003 or acpi:PNP0C0B" or "acpi:LNXVIDEO" */
 294 static int do_acpi_entry(const char *filename,
 295                         struct acpi_device_id *id, char *alias)
 296 {
 297         sprintf(alias, "acpi*:%s:", id->id);
 298         return 1;
 299 }
 300
 301 /* looks like: "pnp:dD" */
 302 static int do_pnp_entry(const char *filename,
 303                         struct pnp_device_id *id, char *alias)
 304 {
 305         sprintf(alias, "pnp:d%s", id->id);
 306         return 1;
 307 }
 308
 309 /* looks like: "pnp:cCdD..." */
 310 static int do_pnp_card_entry(const char *filename,
 311                         struct pnp_card_device_id *id, char *alias)
 312 {
 313         int i;
 314
 315         sprintf(alias, "pnp:c%s", id->id);
 316         for (i = 0; i < PNP_MAX_DEVICES; i++) {
 317                 if (! *id->devs[i].id)
 318                         break;
 319                 sprintf(alias + strlen(alias), "d%s", id->devs[i].id);
 320         }
 321         return 1;
 322 }
 323
 324 /* Looks like: pcmcia:mNcNfNfnNpfnNvaNvbNvcNvdN. */
 325 static int do_pcmcia_entry(const char *filename,
 326                            struct pcmcia_device_id *id, char *alias)
 327 {
 328         unsigned int i;
 329
 330         id->match_flags = TO_NATIVE(id->match_flags);
 331         id->manf_id = TO_NATIVE(id->manf_id);
 332         id->card_id = TO_NATIVE(id->card_id);
 333         id->func_id = TO_NATIVE(id->func_id);
 334         id->function = TO_NATIVE(id->function);
 335         id->device_no = TO_NATIVE(id->device_no);
 336
 337         for (i=0; i<4; i++) {
 338                 id->prod_id_hash[i] = TO_NATIVE(id->prod_id_hash[i]);
 339        }
 340
 341        strcpy(alias, "pcmcia:");
 342        ADD(alias, "m", id->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID,
 343            id->manf_id);
 344        ADD(alias, "c", id->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID,
 345            id->card_id);
 346        ADD(alias, "f", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID,
 347            id->func_id);
 348        ADD(alias, "fn", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION,
 349            id->function);
 350        ADD(alias, "pfn", id->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO,
 351            id->device_no);
 352        ADD(alias, "pa", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1, id->prod_id_hash[0]);
 353        ADD(alias, "pb", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2, id->prod_id_hash[1]);
 354        ADD(alias, "pc", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3, id->prod_id_hash[2]);
 355        ADD(alias, "pd", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4, id->prod_id_hash[3]);
 356
 357        return 1;
 358 }
 359
 360
 361
 362 static int do_of_entry (const char *filename, struct of_device_id *of, char *alias)
 363 {
 364     int len;
 365     char *tmp;
 366     len = sprintf (alias, "of:N%sT%s",
 367                     of->name[0] ? of->name : "*",
 368                     of->type[0] ? of->type : "*");
 369
 370     if (of->compatible[0])
 371         sprintf (&alias[len], "%sC%s",
 372                      of->type[0] ? "*" : "",
 373                      of->compatible);
 374
 375     /* Replace all whitespace with underscores */
 376     for (tmp = alias; tmp && *tmp; tmp++)
 377         if (isspace (*tmp))
 378             *tmp = '_';
 379
 380     return 1;
 381 }
 382
 383 static int do_vio_entry(const char *filename, struct vio_device_id *vio,
 384                 char *alias)
 385 {
 386         char *tmp;
 387
 388         sprintf(alias, "vio:T%sS%s", vio->type[0] ? vio->type : "*",
 389                         vio->compat[0] ? vio->compat : "*");
 390
 391         /* Replace all whitespace with underscores */
 392         for (tmp = alias; tmp && *tmp; tmp++)
 393                 if (isspace (*tmp))
 394                         *tmp = '_';
 395
 396         return 1;
 397 }
 398
 399 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
 400
 401 static void do_input(char *alias,
 402                      kernel_ulong_t *arr, unsigned int min, unsigned int max)
 403 {
 404         unsigned int i;
 405
 406         for (i = min; i < max; i++)
 407                 if (arr[i / BITS_PER_LONG] & (1L << (i%BITS_PER_LONG)))
 408                         sprintf(alias + strlen(alias), "%X,*", i);
 409 }
 410
 411 /* input:b0v0p0e0-eXkXrXaXmXlXsXfXwX where X is comma-separated %02X. */
 412 static int do_input_entry(const char *filename, struct input_device_id *id,
 413                           char *alias)
 414 {
 415         sprintf(alias, "input:");
 416
 417         ADD(alias, "b", id->flags & INPUT_DEVICE_ID_MATCH_BUS, id->bustype);
 418         ADD(alias, "v", id->flags & INPUT_DEVICE_ID_MATCH_VENDOR, id->vendor);
 419         ADD(alias, "p", id->flags & INPUT_DEVICE_ID_MATCH_PRODUCT, id->product);
 420         ADD(alias, "e", id->flags & INPUT_DEVICE_ID_MATCH_VERSION, id->version);
 421
 422         sprintf(alias + strlen(alias), "-e*");
 423         if (id->flags & INPUT_DEVICE_ID_MATCH_EVBIT)
 424                 do_input(alias, id->evbit, 0, INPUT_DEVICE_ID_EV_MAX);
 425         sprintf(alias + strlen(alias), "k*");
 426         if (id->flags & INPUT_DEVICE_ID_MATCH_KEYBIT)
 427                 do_input(alias, id->keybit,
 428                          INPUT_DEVICE_ID_KEY_MIN_INTERESTING,
 429                          INPUT_DEVICE_ID_KEY_MAX);
 430         sprintf(alias + strlen(alias), "r*");
 431         if (id->flags & INPUT_DEVICE_ID_MATCH_RELBIT)
 432                 do_input(alias, id->relbit, 0, INPUT_DEVICE_ID_REL_MAX);
 433         sprintf(alias + strlen(alias), "a*");
 434         if (id->flags & INPUT_DEVICE_ID_MATCH_ABSBIT)
 435                 do_input(alias, id->absbit, 0, INPUT_DEVICE_ID_ABS_MAX);
 436         sprintf(alias + strlen(alias), "m*");
 437         if (id->flags & INPUT_DEVICE_ID_MATCH_MSCIT)
 438                 do_input(alias, id->mscbit, 0, INPUT_DEVICE_ID_MSC_MAX);
 439         sprintf(alias + strlen(alias), "l*");
 440         if (id->flags & INPUT_DEVICE_ID_MATCH_LEDBIT)
 441                 do_input(alias, id->ledbit, 0, INPUT_DEVICE_ID_LED_MAX);
 442         sprintf(alias + strlen(alias), "s*");
 443         if (id->flags & INPUT_DEVICE_ID_MATCH_SNDBIT)
 444                 do_input(alias, id->sndbit, 0, INPUT_DEVICE_ID_SND_MAX);
 445         sprintf(alias + strlen(alias), "f*");
 446         if (id->flags & INPUT_DEVICE_ID_MATCH_FFBIT)
 447                 do_input(alias, id->ffbit, 0, INPUT_DEVICE_ID_FF_MAX);
 448         sprintf(alias + strlen(alias), "w*");
 449         if (id->flags & INPUT_DEVICE_ID_MATCH_SWBIT)
 450                 do_input(alias, id->swbit, 0, INPUT_DEVICE_ID_SW_MAX);
 451         return 1;
 452 }
 453
 454 static int do_eisa_entry(const char *filename, struct eisa_device_id *eisa,
 455                 char *alias)
 456 {
 457         if (eisa->sig[0])
 458                 sprintf(alias, EISA_DEVICE_MODALIAS_FMT "*", eisa->sig);
 459         return 1;
 460 }
 461
 462 /* Looks like: parisc:tNhvNrevNsvN */
 463 static int do_parisc_entry(const char *filename, struct parisc_device_id *id,
 464                 char *alias)
 465 {
 466         id->hw_type = TO_NATIVE(id->hw_type);
 467         id->hversion = TO_NATIVE(id->hversion);
 468         id->hversion_rev = TO_NATIVE(id->hversion_rev);
 469         id->sversion = TO_NATIVE(id->sversion);
 470
 471         strcpy(alias, "parisc:");
 472         ADD(alias, "t", id->hw_type != PA_HWTYPE_ANY_ID, id->hw_type);
 473         ADD(alias, "hv", id->hversion != PA_HVERSION_ANY_ID, id->hversion);
 474         ADD(alias, "rev", id->hversion_rev != PA_HVERSION_REV_ANY_ID, id->hversion_rev);
 475         ADD(alias, "sv", id->sversion != PA_SVERSION_ANY_ID, id->sversion);
 476
 477         return 1;
 478 }
 479
 480 /* Looks like: sdio:cNvNdN. */
 481 static int do_sdio_entry(const char *filename,
 482                         struct sdio_device_id *id, char *alias)
 483 {
 484         id->class = TO_NATIVE(id->class);
 485         id->vendor = TO_NATIVE(id->vendor);
 486         id->device = TO_NATIVE(id->device);
 487
 488         strcpy(alias, "sdio:");
 489         ADD(alias, "c", id->class != (__u8)SDIO_ANY_ID, id->class);
 490         ADD(alias, "v", id->vendor != (__u16)SDIO_ANY_ID, id->vendor);
 491         ADD(alias, "d", id->device != (__u16)SDIO_ANY_ID, id->device);
 492         return 1;
 493 }
 494
 495 /* Looks like: ssb:vNidNrevN. */
 496 static int do_ssb_entry(const char *filename,
 497                         struct ssb_device_id *id, char *alias)
 498 {
 499         id->vendor = TO_NATIVE(id->vendor);
 500         id->coreid = TO_NATIVE(id->coreid);
 501         id->revision = TO_NATIVE(id->revision);
 502
 503         strcpy(alias, "ssb:");
 504         ADD(alias, "v", id->vendor != SSB_ANY_VENDOR, id->vendor);
 505         ADD(alias, "id", id->coreid != SSB_ANY_ID, id->coreid);
 506         ADD(alias, "rev", id->revision != SSB_ANY_REV, id->revision);
 507         return 1;
 508 }
 509
 510 /* Ignore any prefix, eg. v850 prepends _ */
 511 static inline int sym_is(const char *symbol, const char *name)
 512 {
 513         const char *match;
 514
 515         match = strstr(symbol, name);
 516         if (!match)
 517                 return 0;
 518         return match[strlen(symbol)] == '\0';
 519 }
 520
 521 static void do_table(void *symval, unsigned long size,
 522                      unsigned long id_size,
 523                      const char *device_id,
 524                      void *function,
 525                      struct module *mod)
 526 {
 527         unsigned int i;
 528         char alias[500];
 529         int (*do_entry)(const char *, void *entry, char *alias) = function;
 530
 531         device_id_size_check(mod->name, device_id, size, id_size);
 532         /* Leave last one: it's the terminator. */
 533         size -= id_size;
 534
 535         for (i = 0; i < size; i += id_size) {
 536                 if (do_entry(mod->name, symval+i, alias)) {
 537                         /* Always end in a wildcard, for future extension */
 538                         if (alias[strlen(alias)-1] != '*')
 539                                 strcat(alias, "*");
 540                         buf_printf(&mod->dev_table_buf,
 541                                    "MODULE_ALIAS(\"%s\");\n", alias);
 542                 }
 543         }
 544 }
 545
 546 /* Create MODULE_ALIAS() statements.
 547  * At this time, we cannot write the actual output C source yet,
 548  * so we write into the mod->dev_table_buf buffer. */
 549 void handle_moddevtable(struct module *mod, struct elf_info *info,
 550                         Elf_Sym *sym, const char *symname)
 551 {
 552         void *symval;
 553
 554         /* We're looking for a section relative symbol */
 555         if (!sym->st_shndx || sym->st_shndx >= info->hdr->e_shnum)
 556                 return;
 557
 558         symval = (void *)info->hdr
 559                 + info->sechdrs[sym->st_shndx].sh_offset
 560                 + sym->st_value;
 561
 562         if (sym_is(symname, "__mod_pci_device_table"))
 563                 do_table(symval, sym->st_size,
 564                          sizeof(struct pci_device_id), "pci",
 565                          do_pci_entry, mod);
 566         else if (sym_is(symname, "__mod_usb_device_table"))
 567                 /* special case to handle bcdDevice ranges */
 568                 do_usb_table(symval, sym->st_size, mod);
 569         else if (sym_is(symname, "__mod_ieee1394_device_table"))
 570                 do_table(symval, sym->st_size,
 571                          sizeof(struct ieee1394_device_id), "ieee1394",
 572                          do_ieee1394_entry, mod);
 573         else if (sym_is(symname, "__mod_ccw_device_table"))
 574                 do_table(symval, sym->st_size,
 575                          sizeof(struct ccw_device_id), "ccw",
 576                          do_ccw_entry, mod);
 577         else if (sym_is(symname, "__mod_ap_device_table"))
 578                 do_table(symval, sym->st_size,
 579                          sizeof(struct ap_device_id), "ap",
 580                          do_ap_entry, mod);
 581         else if (sym_is(symname, "__mod_serio_device_table"))
 582                 do_table(symval, sym->st_size,
 583                          sizeof(struct serio_device_id), "serio",
 584                          do_serio_entry, mod);
 585         else if (sym_is(symname, "__mod_acpi_device_table"))
 586                 do_table(symval, sym->st_size,
 587                          sizeof(struct acpi_device_id), "acpi",
 588                          do_acpi_entry, mod);
 589         else if (sym_is(symname, "__mod_pnp_device_table"))
 590                 do_table(symval, sym->st_size,
 591                          sizeof(struct pnp_device_id), "pnp",
 592                          do_pnp_entry, mod);
 593         else if (sym_is(symname, "__mod_pnp_card_device_table"))
 594                 do_table(symval, sym->st_size,
 595                          sizeof(struct pnp_card_device_id), "pnp_card",
 596                          do_pnp_card_entry, mod);
 597         else if (sym_is(symname, "__mod_pcmcia_device_table"))
 598                 do_table(symval, sym->st_size,
 599                          sizeof(struct pcmcia_device_id), "pcmcia",
 600                          do_pcmcia_entry, mod);
 601         else if (sym_is(symname, "__mod_of_device_table"))
 602                 do_table(symval, sym->st_size,
 603                          sizeof(struct of_device_id), "of",
 604                          do_of_entry, mod);
 605         else if (sym_is(symname, "__mod_vio_device_table"))
 606                 do_table(symval, sym->st_size,
 607                          sizeof(struct vio_device_id), "vio",
 608                          do_vio_entry, mod);
 609         else if (sym_is(symname, "__mod_input_device_table"))
 610                 do_table(symval, sym->st_size,
 611                          sizeof(struct input_device_id), "input",
 612                          do_input_entry, mod);
 613         else if (sym_is(symname, "__mod_eisa_device_table"))
 614                 do_table(symval, sym->st_size,
 615                          sizeof(struct eisa_device_id), "eisa",
 616                          do_eisa_entry, mod);
 617         else if (sym_is(symname, "__mod_parisc_device_table"))
 618                 do_table(symval, sym->st_size,
 619                          sizeof(struct parisc_device_id), "parisc",
 620                          do_parisc_entry, mod);
 621         else if (sym_is(symname, "__mod_sdio_device_table"))
 622                 do_table(symval, sym->st_size,
 623                          sizeof(struct sdio_device_id), "sdio",
 624                          do_sdio_entry, mod);
 625         else if (sym_is(symname, "__mod_ssb_device_table"))
 626                 do_table(symval, sym->st_size,
 627                          sizeof(struct ssb_device_id), "ssb",
 628                          do_ssb_entry, mod);
 629 }
 630
 631 /* Now add out buffered information to the generated C source */
 632 void add_moddevtable(struct buffer *buf, struct module *mod)
 633 {
 634         buf_printf(buf, "\n");
 635         buf_write(buf, mod->dev_table_buf.p, mod->dev_table_buf.pos);
 636         free(mod->dev_table_buf.p);
 637 }