linux/scripts/mod/file2alias.c
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   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
  18typedef Elf32_Addr      kernel_ulong_t;
  19#define BITS_PER_LONG 32
  20#else
  21typedef 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#include <stdbool.h>
  32
  33typedef uint32_t        __u32;
  34typedef uint16_t        __u16;
  35typedef unsigned char   __u8;
  36
  37/* Big exception to the "don't include kernel headers into userspace, which
  38 * even potentially has different endianness and word sizes, since
  39 * we handle those differences explicitly below */
  40#include "../../include/linux/mod_devicetable.h"
  41
  42/* This array collects all instances that use the generic do_table */
  43struct devtable {
  44        const char *device_id; /* name of table, __mod_<name>_device_table. */
  45        unsigned long id_size;
  46        void *function;
  47};
  48
  49#define ___cat(a,b) a ## b
  50#define __cat(a,b) ___cat(a,b)
  51
  52/* we need some special handling for this host tool running eventually on
  53 * Darwin. The Mach-O section handling is a bit different than ELF section
  54 * handling. The differnces in detail are:
  55 *  a) we have segments which have sections
  56 *  b) we need a API call to get the respective section symbols */
  57#if defined(__MACH__)
  58#include <mach-o/getsect.h>
  59
  60#define INIT_SECTION(name)  do {                                        \
  61                unsigned long name ## _len;                             \
  62                char *__cat(pstart_,name) = getsectdata("__TEXT",       \
  63                        #name, &__cat(name,_len));                      \
  64                char *__cat(pstop_,name) = __cat(pstart_,name) +        \
  65                        __cat(name, _len);                              \
  66                __cat(__start_,name) = (void *)__cat(pstart_,name);     \
  67                __cat(__stop_,name) = (void *)__cat(pstop_,name);       \
  68        } while (0)
  69#define SECTION(name)   __attribute__((section("__TEXT, " #name)))
  70
  71struct devtable **__start___devtable, **__stop___devtable;
  72#else
  73#define INIT_SECTION(name) /* no-op for ELF */
  74#define SECTION(name)   __attribute__((section(#name)))
  75
  76/* We construct a table of pointers in an ELF section (pointers generally
  77 * go unpadded by gcc).  ld creates boundary syms for us. */
  78extern struct devtable *__start___devtable[], *__stop___devtable[];
  79#endif /* __MACH__ */
  80
  81#if __GNUC__ == 3 && __GNUC_MINOR__ < 3
  82# define __used                 __attribute__((__unused__))
  83#else
  84# define __used                 __attribute__((__used__))
  85#endif
  86
  87/* Add a table entry.  We test function type matches while we're here. */
  88#define ADD_TO_DEVTABLE(device_id, type, function) \
  89        static struct devtable __cat(devtable,__LINE__) = {     \
  90                device_id + 0*sizeof((function)((const char *)NULL,     \
  91                                                (type *)NULL,           \
  92                                                (char *)NULL)),         \
  93                sizeof(type), (function) };                             \
  94        static struct devtable *SECTION(__devtable) __used \
  95                __cat(devtable_ptr,__LINE__) = &__cat(devtable,__LINE__)
  96
  97#define ADD(str, sep, cond, field)                              \
  98do {                                                            \
  99        strcat(str, sep);                                       \
 100        if (cond)                                               \
 101                sprintf(str + strlen(str),                      \
 102                        sizeof(field) == 1 ? "%02X" :           \
 103                        sizeof(field) == 2 ? "%04X" :           \
 104                        sizeof(field) == 4 ? "%08X" : "",       \
 105                        field);                                 \
 106        else                                                    \
 107                sprintf(str + strlen(str), "*");                \
 108} while(0)
 109
 110/* Always end in a wildcard, for future extension */
 111static inline void add_wildcard(char *str)
 112{
 113        int len = strlen(str);
 114
 115        if (str[len - 1] != '*')
 116                strcat(str + len, "*");
 117}
 118
 119unsigned int cross_build = 0;
 120/**
 121 * Check that sizeof(device_id type) are consistent with size of section
 122 * in .o file. If in-consistent then userspace and kernel does not agree
 123 * on actual size which is a bug.
 124 * Also verify that the final entry in the table is all zeros.
 125 * Ignore both checks if build host differ from target host and size differs.
 126 **/
 127static void device_id_check(const char *modname, const char *device_id,
 128                            unsigned long size, unsigned long id_size,
 129                            void *symval)
 130{
 131        int i;
 132
 133        if (size % id_size || size < id_size) {
 134                if (cross_build != 0)
 135                        return;
 136                fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo "
 137                      "of the size of section __mod_%s_device_table=%lu.\n"
 138                      "Fix definition of struct %s_device_id "
 139                      "in mod_devicetable.h\n",
 140                      modname, device_id, id_size, device_id, size, device_id);
 141        }
 142        /* Verify last one is a terminator */
 143        for (i = 0; i < id_size; i++ ) {
 144                if (*(uint8_t*)(symval+size-id_size+i)) {
 145                        fprintf(stderr,"%s: struct %s_device_id is %lu bytes.  "
 146                                "The last of %lu is:\n",
 147                                modname, device_id, id_size, size / id_size);
 148                        for (i = 0; i < id_size; i++ )
 149                                fprintf(stderr,"0x%02x ",
 150                                        *(uint8_t*)(symval+size-id_size+i) );
 151                        fprintf(stderr,"\n");
 152                        fatal("%s: struct %s_device_id is not terminated "
 153                                "with a NULL entry!\n", modname, device_id);
 154                }
 155        }
 156}
 157
 158/* USB is special because the bcdDevice can be matched against a numeric range */
 159/* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipNinN" */
 160static void do_usb_entry(struct usb_device_id *id,
 161                         unsigned int bcdDevice_initial, int bcdDevice_initial_digits,
 162                         unsigned char range_lo, unsigned char range_hi,
 163                         unsigned char max, struct module *mod)
 164{
 165        char alias[500];
 166        strcpy(alias, "usb:");
 167        ADD(alias, "v", id->match_flags&USB_DEVICE_ID_MATCH_VENDOR,
 168            id->idVendor);
 169        ADD(alias, "p", id->match_flags&USB_DEVICE_ID_MATCH_PRODUCT,
 170            id->idProduct);
 171
 172        strcat(alias, "d");
 173        if (bcdDevice_initial_digits)
 174                sprintf(alias + strlen(alias), "%0*X",
 175                        bcdDevice_initial_digits, bcdDevice_initial);
 176        if (range_lo == range_hi)
 177                sprintf(alias + strlen(alias), "%X", range_lo);
 178        else if (range_lo > 0 || range_hi < max) {
 179                if (range_lo > 0x9 || range_hi < 0xA)
 180                        sprintf(alias + strlen(alias),
 181                                "[%X-%X]",
 182                                range_lo,
 183                                range_hi);
 184                else {
 185                        sprintf(alias + strlen(alias),
 186                                range_lo < 0x9 ? "[%X-9" : "[%X",
 187                                range_lo);
 188                        sprintf(alias + strlen(alias),
 189                                range_hi > 0xA ? "a-%X]" : "%X]",
 190                                range_lo);
 191                }
 192        }
 193        if (bcdDevice_initial_digits < (sizeof(id->bcdDevice_lo) * 2 - 1))
 194                strcat(alias, "*");
 195
 196        ADD(alias, "dc", id->match_flags&USB_DEVICE_ID_MATCH_DEV_CLASS,
 197            id->bDeviceClass);
 198        ADD(alias, "dsc",
 199            id->match_flags&USB_DEVICE_ID_MATCH_DEV_SUBCLASS,
 200            id->bDeviceSubClass);
 201        ADD(alias, "dp",
 202            id->match_flags&USB_DEVICE_ID_MATCH_DEV_PROTOCOL,
 203            id->bDeviceProtocol);
 204        ADD(alias, "ic",
 205            id->match_flags&USB_DEVICE_ID_MATCH_INT_CLASS,
 206            id->bInterfaceClass);
 207        ADD(alias, "isc",
 208            id->match_flags&USB_DEVICE_ID_MATCH_INT_SUBCLASS,
 209            id->bInterfaceSubClass);
 210        ADD(alias, "ip",
 211            id->match_flags&USB_DEVICE_ID_MATCH_INT_PROTOCOL,
 212            id->bInterfaceProtocol);
 213        ADD(alias, "in",
 214            id->match_flags&USB_DEVICE_ID_MATCH_INT_NUMBER,
 215            id->bInterfaceNumber);
 216
 217        add_wildcard(alias);
 218        buf_printf(&mod->dev_table_buf,
 219                   "MODULE_ALIAS(\"%s\");\n", alias);
 220}
 221
 222/* Handles increment/decrement of BCD formatted integers */
 223/* Returns the previous value, so it works like i++ or i-- */
 224static unsigned int incbcd(unsigned int *bcd,
 225                           int inc,
 226                           unsigned char max,
 227                           size_t chars)
 228{
 229        unsigned int init = *bcd, i, j;
 230        unsigned long long c, dec = 0;
 231
 232        /* If bcd is not in BCD format, just increment */
 233        if (max > 0x9) {
 234                *bcd += inc;
 235                return init;
 236        }
 237
 238        /* Convert BCD to Decimal */
 239        for (i=0 ; i < chars ; i++) {
 240                c = (*bcd >> (i << 2)) & 0xf;
 241                c = c > 9 ? 9 : c; /* force to bcd just in case */
 242                for (j=0 ; j < i ; j++)
 243                        c = c * 10;
 244                dec += c;
 245        }
 246
 247        /* Do our increment/decrement */
 248        dec += inc;
 249        *bcd  = 0;
 250
 251        /* Convert back to BCD */
 252        for (i=0 ; i < chars ; i++) {
 253                for (c=1,j=0 ; j < i ; j++)
 254                        c = c * 10;
 255                c = (dec / c) % 10;
 256                *bcd += c << (i << 2);
 257        }
 258        return init;
 259}
 260
 261static void do_usb_entry_multi(struct usb_device_id *id, struct module *mod)
 262{
 263        unsigned int devlo, devhi;
 264        unsigned char chi, clo, max;
 265        int ndigits;
 266
 267        id->match_flags = TO_NATIVE(id->match_flags);
 268        id->idVendor = TO_NATIVE(id->idVendor);
 269        id->idProduct = TO_NATIVE(id->idProduct);
 270
 271        devlo = id->match_flags & USB_DEVICE_ID_MATCH_DEV_LO ?
 272                TO_NATIVE(id->bcdDevice_lo) : 0x0U;
 273        devhi = id->match_flags & USB_DEVICE_ID_MATCH_DEV_HI ?
 274                TO_NATIVE(id->bcdDevice_hi) : ~0x0U;
 275
 276        /* Figure out if this entry is in bcd or hex format */
 277        max = 0x9; /* Default to decimal format */
 278        for (ndigits = 0 ; ndigits < sizeof(id->bcdDevice_lo) * 2 ; ndigits++) {
 279                clo = (devlo >> (ndigits << 2)) & 0xf;
 280                chi = ((devhi > 0x9999 ? 0x9999 : devhi) >> (ndigits << 2)) & 0xf;
 281                if (clo > max || chi > max) {
 282                        max = 0xf;
 283                        break;
 284                }
 285        }
 286
 287        /*
 288         * Some modules (visor) have empty slots as placeholder for
 289         * run-time specification that results in catch-all alias
 290         */
 291        if (!(id->idVendor | id->idProduct | id->bDeviceClass | id->bInterfaceClass))
 292                return;
 293
 294        /* Convert numeric bcdDevice range into fnmatch-able pattern(s) */
 295        for (ndigits = sizeof(id->bcdDevice_lo) * 2 - 1; devlo <= devhi; ndigits--) {
 296                clo = devlo & 0xf;
 297                chi = devhi & 0xf;
 298                if (chi > max)  /* If we are in bcd mode, truncate if necessary */
 299                        chi = max;
 300                devlo >>= 4;
 301                devhi >>= 4;
 302
 303                if (devlo == devhi || !ndigits) {
 304                        do_usb_entry(id, devlo, ndigits, clo, chi, max, mod);
 305                        break;
 306                }
 307
 308                if (clo > 0x0)
 309                        do_usb_entry(id,
 310                                     incbcd(&devlo, 1, max,
 311                                            sizeof(id->bcdDevice_lo) * 2),
 312                                     ndigits, clo, max, max, mod);
 313
 314                if (chi < max)
 315                        do_usb_entry(id,
 316                                     incbcd(&devhi, -1, max,
 317                                            sizeof(id->bcdDevice_lo) * 2),
 318                                     ndigits, 0x0, chi, max, mod);
 319        }
 320}
 321
 322static void do_usb_table(void *symval, unsigned long size,
 323                         struct module *mod)
 324{
 325        unsigned int i;
 326        const unsigned long id_size = sizeof(struct usb_device_id);
 327
 328        device_id_check(mod->name, "usb", size, id_size, symval);
 329
 330        /* Leave last one: it's the terminator. */
 331        size -= id_size;
 332
 333        for (i = 0; i < size; i += id_size)
 334                do_usb_entry_multi(symval + i, mod);
 335}
 336
 337/* Looks like: hid:bNvNpN */
 338static int do_hid_entry(const char *filename,
 339                             struct hid_device_id *id, char *alias)
 340{
 341        id->bus = TO_NATIVE(id->bus);
 342        id->group = TO_NATIVE(id->group);
 343        id->vendor = TO_NATIVE(id->vendor);
 344        id->product = TO_NATIVE(id->product);
 345
 346        sprintf(alias, "hid:");
 347        ADD(alias, "b", id->bus != HID_BUS_ANY, id->bus);
 348        ADD(alias, "g", id->group != HID_GROUP_ANY, id->group);
 349        ADD(alias, "v", id->vendor != HID_ANY_ID, id->vendor);
 350        ADD(alias, "p", id->product != HID_ANY_ID, id->product);
 351
 352        return 1;
 353}
 354ADD_TO_DEVTABLE("hid", struct hid_device_id, do_hid_entry);
 355
 356/* Looks like: ieee1394:venNmoNspNverN */
 357static int do_ieee1394_entry(const char *filename,
 358                             struct ieee1394_device_id *id, char *alias)
 359{
 360        id->match_flags = TO_NATIVE(id->match_flags);
 361        id->vendor_id = TO_NATIVE(id->vendor_id);
 362        id->model_id = TO_NATIVE(id->model_id);
 363        id->specifier_id = TO_NATIVE(id->specifier_id);
 364        id->version = TO_NATIVE(id->version);
 365
 366        strcpy(alias, "ieee1394:");
 367        ADD(alias, "ven", id->match_flags & IEEE1394_MATCH_VENDOR_ID,
 368            id->vendor_id);
 369        ADD(alias, "mo", id->match_flags & IEEE1394_MATCH_MODEL_ID,
 370            id->model_id);
 371        ADD(alias, "sp", id->match_flags & IEEE1394_MATCH_SPECIFIER_ID,
 372            id->specifier_id);
 373        ADD(alias, "ver", id->match_flags & IEEE1394_MATCH_VERSION,
 374            id->version);
 375
 376        add_wildcard(alias);
 377        return 1;
 378}
 379ADD_TO_DEVTABLE("ieee1394", struct ieee1394_device_id, do_ieee1394_entry);
 380
 381/* Looks like: pci:vNdNsvNsdNbcNscNiN. */
 382static int do_pci_entry(const char *filename,
 383                        struct pci_device_id *id, char *alias)
 384{
 385        /* Class field can be divided into these three. */
 386        unsigned char baseclass, subclass, interface,
 387                baseclass_mask, subclass_mask, interface_mask;
 388
 389        id->vendor = TO_NATIVE(id->vendor);
 390        id->device = TO_NATIVE(id->device);
 391        id->subvendor = TO_NATIVE(id->subvendor);
 392        id->subdevice = TO_NATIVE(id->subdevice);
 393        id->class = TO_NATIVE(id->class);
 394        id->class_mask = TO_NATIVE(id->class_mask);
 395
 396        strcpy(alias, "pci:");
 397        ADD(alias, "v", id->vendor != PCI_ANY_ID, id->vendor);
 398        ADD(alias, "d", id->device != PCI_ANY_ID, id->device);
 399        ADD(alias, "sv", id->subvendor != PCI_ANY_ID, id->subvendor);
 400        ADD(alias, "sd", id->subdevice != PCI_ANY_ID, id->subdevice);
 401
 402        baseclass = (id->class) >> 16;
 403        baseclass_mask = (id->class_mask) >> 16;
 404        subclass = (id->class) >> 8;
 405        subclass_mask = (id->class_mask) >> 8;
 406        interface = id->class;
 407        interface_mask = id->class_mask;
 408
 409        if ((baseclass_mask != 0 && baseclass_mask != 0xFF)
 410            || (subclass_mask != 0 && subclass_mask != 0xFF)
 411            || (interface_mask != 0 && interface_mask != 0xFF)) {
 412                warn("Can't handle masks in %s:%04X\n",
 413                     filename, id->class_mask);
 414                return 0;
 415        }
 416
 417        ADD(alias, "bc", baseclass_mask == 0xFF, baseclass);
 418        ADD(alias, "sc", subclass_mask == 0xFF, subclass);
 419        ADD(alias, "i", interface_mask == 0xFF, interface);
 420        add_wildcard(alias);
 421        return 1;
 422}
 423ADD_TO_DEVTABLE("pci", struct pci_device_id, do_pci_entry);
 424
 425/* looks like: "ccw:tNmNdtNdmN" */
 426static int do_ccw_entry(const char *filename,
 427                        struct ccw_device_id *id, char *alias)
 428{
 429        id->match_flags = TO_NATIVE(id->match_flags);
 430        id->cu_type = TO_NATIVE(id->cu_type);
 431        id->cu_model = TO_NATIVE(id->cu_model);
 432        id->dev_type = TO_NATIVE(id->dev_type);
 433        id->dev_model = TO_NATIVE(id->dev_model);
 434
 435        strcpy(alias, "ccw:");
 436        ADD(alias, "t", id->match_flags&CCW_DEVICE_ID_MATCH_CU_TYPE,
 437            id->cu_type);
 438        ADD(alias, "m", id->match_flags&CCW_DEVICE_ID_MATCH_CU_MODEL,
 439            id->cu_model);
 440        ADD(alias, "dt", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_TYPE,
 441            id->dev_type);
 442        ADD(alias, "dm", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_MODEL,
 443            id->dev_model);
 444        add_wildcard(alias);
 445        return 1;
 446}
 447ADD_TO_DEVTABLE("ccw", struct ccw_device_id, do_ccw_entry);
 448
 449/* looks like: "ap:tN" */
 450static int do_ap_entry(const char *filename,
 451                       struct ap_device_id *id, char *alias)
 452{
 453        sprintf(alias, "ap:t%02X*", id->dev_type);
 454        return 1;
 455}
 456ADD_TO_DEVTABLE("ap", struct ap_device_id, do_ap_entry);
 457
 458/* looks like: "css:tN" */
 459static int do_css_entry(const char *filename,
 460                        struct css_device_id *id, char *alias)
 461{
 462        sprintf(alias, "css:t%01X", id->type);
 463        return 1;
 464}
 465ADD_TO_DEVTABLE("css", struct css_device_id, do_css_entry);
 466
 467/* Looks like: "serio:tyNprNidNexN" */
 468static int do_serio_entry(const char *filename,
 469                          struct serio_device_id *id, char *alias)
 470{
 471        id->type = TO_NATIVE(id->type);
 472        id->proto = TO_NATIVE(id->proto);
 473        id->id = TO_NATIVE(id->id);
 474        id->extra = TO_NATIVE(id->extra);
 475
 476        strcpy(alias, "serio:");
 477        ADD(alias, "ty", id->type != SERIO_ANY, id->type);
 478        ADD(alias, "pr", id->proto != SERIO_ANY, id->proto);
 479        ADD(alias, "id", id->id != SERIO_ANY, id->id);
 480        ADD(alias, "ex", id->extra != SERIO_ANY, id->extra);
 481
 482        add_wildcard(alias);
 483        return 1;
 484}
 485ADD_TO_DEVTABLE("serio", struct serio_device_id, do_serio_entry);
 486
 487/* looks like: "acpi:ACPI0003 or acpi:PNP0C0B" or "acpi:LNXVIDEO" */
 488static int do_acpi_entry(const char *filename,
 489                        struct acpi_device_id *id, char *alias)
 490{
 491        sprintf(alias, "acpi*:%s:*", id->id);
 492        return 1;
 493}
 494ADD_TO_DEVTABLE("acpi", struct acpi_device_id, do_acpi_entry);
 495
 496/* looks like: "pnp:dD" */
 497static void do_pnp_device_entry(void *symval, unsigned long size,
 498                                struct module *mod)
 499{
 500        const unsigned long id_size = sizeof(struct pnp_device_id);
 501        const unsigned int count = (size / id_size)-1;
 502        const struct pnp_device_id *devs = symval;
 503        unsigned int i;
 504
 505        device_id_check(mod->name, "pnp", size, id_size, symval);
 506
 507        for (i = 0; i < count; i++) {
 508                const char *id = (char *)devs[i].id;
 509                char acpi_id[sizeof(devs[0].id)];
 510                int j;
 511
 512                buf_printf(&mod->dev_table_buf,
 513                           "MODULE_ALIAS(\"pnp:d%s*\");\n", id);
 514
 515                /* fix broken pnp bus lowercasing */
 516                for (j = 0; j < sizeof(acpi_id); j++)
 517                        acpi_id[j] = toupper(id[j]);
 518                buf_printf(&mod->dev_table_buf,
 519                           "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id);
 520        }
 521}
 522
 523/* looks like: "pnp:dD" for every device of the card */
 524static void do_pnp_card_entries(void *symval, unsigned long size,
 525                                struct module *mod)
 526{
 527        const unsigned long id_size = sizeof(struct pnp_card_device_id);
 528        const unsigned int count = (size / id_size)-1;
 529        const struct pnp_card_device_id *cards = symval;
 530        unsigned int i;
 531
 532        device_id_check(mod->name, "pnp", size, id_size, symval);
 533
 534        for (i = 0; i < count; i++) {
 535                unsigned int j;
 536                const struct pnp_card_device_id *card = &cards[i];
 537
 538                for (j = 0; j < PNP_MAX_DEVICES; j++) {
 539                        const char *id = (char *)card->devs[j].id;
 540                        int i2, j2;
 541                        int dup = 0;
 542
 543                        if (!id[0])
 544                                break;
 545
 546                        /* find duplicate, already added value */
 547                        for (i2 = 0; i2 < i && !dup; i2++) {
 548                                const struct pnp_card_device_id *card2 = &cards[i2];
 549
 550                                for (j2 = 0; j2 < PNP_MAX_DEVICES; j2++) {
 551                                        const char *id2 = (char *)card2->devs[j2].id;
 552
 553                                        if (!id2[0])
 554                                                break;
 555
 556                                        if (!strcmp(id, id2)) {
 557                                                dup = 1;
 558                                                break;
 559                                        }
 560                                }
 561                        }
 562
 563                        /* add an individual alias for every device entry */
 564                        if (!dup) {
 565                                char acpi_id[sizeof(card->devs[0].id)];
 566                                int k;
 567
 568                                buf_printf(&mod->dev_table_buf,
 569                                           "MODULE_ALIAS(\"pnp:d%s*\");\n", id);
 570
 571                                /* fix broken pnp bus lowercasing */
 572                                for (k = 0; k < sizeof(acpi_id); k++)
 573                                        acpi_id[k] = toupper(id[k]);
 574                                buf_printf(&mod->dev_table_buf,
 575                                           "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id);
 576                        }
 577                }
 578        }
 579}
 580
 581/* Looks like: pcmcia:mNcNfNfnNpfnNvaNvbNvcNvdN. */
 582static int do_pcmcia_entry(const char *filename,
 583                           struct pcmcia_device_id *id, char *alias)
 584{
 585        unsigned int i;
 586
 587        id->match_flags = TO_NATIVE(id->match_flags);
 588        id->manf_id = TO_NATIVE(id->manf_id);
 589        id->card_id = TO_NATIVE(id->card_id);
 590        id->func_id = TO_NATIVE(id->func_id);
 591        id->function = TO_NATIVE(id->function);
 592        id->device_no = TO_NATIVE(id->device_no);
 593
 594        for (i=0; i<4; i++) {
 595                id->prod_id_hash[i] = TO_NATIVE(id->prod_id_hash[i]);
 596       }
 597
 598       strcpy(alias, "pcmcia:");
 599       ADD(alias, "m", id->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID,
 600           id->manf_id);
 601       ADD(alias, "c", id->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID,
 602           id->card_id);
 603       ADD(alias, "f", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID,
 604           id->func_id);
 605       ADD(alias, "fn", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION,
 606           id->function);
 607       ADD(alias, "pfn", id->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO,
 608           id->device_no);
 609       ADD(alias, "pa", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1, id->prod_id_hash[0]);
 610       ADD(alias, "pb", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2, id->prod_id_hash[1]);
 611       ADD(alias, "pc", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3, id->prod_id_hash[2]);
 612       ADD(alias, "pd", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4, id->prod_id_hash[3]);
 613
 614        add_wildcard(alias);
 615       return 1;
 616}
 617ADD_TO_DEVTABLE("pcmcia", struct pcmcia_device_id, do_pcmcia_entry);
 618
 619static int do_of_entry (const char *filename, struct of_device_id *of, char *alias)
 620{
 621    int len;
 622    char *tmp;
 623    len = sprintf (alias, "of:N%sT%s",
 624                    of->name[0] ? of->name : "*",
 625                    of->type[0] ? of->type : "*");
 626
 627    if (of->compatible[0])
 628        sprintf (&alias[len], "%sC%s",
 629                     of->type[0] ? "*" : "",
 630                     of->compatible);
 631
 632    /* Replace all whitespace with underscores */
 633    for (tmp = alias; tmp && *tmp; tmp++)
 634        if (isspace (*tmp))
 635            *tmp = '_';
 636
 637    add_wildcard(alias);
 638    return 1;
 639}
 640ADD_TO_DEVTABLE("of", struct of_device_id, do_of_entry);
 641
 642static int do_vio_entry(const char *filename, struct vio_device_id *vio,
 643                char *alias)
 644{
 645        char *tmp;
 646
 647        sprintf(alias, "vio:T%sS%s", vio->type[0] ? vio->type : "*",
 648                        vio->compat[0] ? vio->compat : "*");
 649
 650        /* Replace all whitespace with underscores */
 651        for (tmp = alias; tmp && *tmp; tmp++)
 652                if (isspace (*tmp))
 653                        *tmp = '_';
 654
 655        add_wildcard(alias);
 656        return 1;
 657}
 658ADD_TO_DEVTABLE("vio", struct vio_device_id, do_vio_entry);
 659
 660#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
 661
 662static void do_input(char *alias,
 663                     kernel_ulong_t *arr, unsigned int min, unsigned int max)
 664{
 665        unsigned int i;
 666
 667        for (i = min; i < max; i++)
 668                if (arr[i / BITS_PER_LONG] & (1L << (i%BITS_PER_LONG)))
 669                        sprintf(alias + strlen(alias), "%X,*", i);
 670}
 671
 672/* input:b0v0p0e0-eXkXrXaXmXlXsXfXwX where X is comma-separated %02X. */
 673static int do_input_entry(const char *filename, struct input_device_id *id,
 674                          char *alias)
 675{
 676        sprintf(alias, "input:");
 677
 678        ADD(alias, "b", id->flags & INPUT_DEVICE_ID_MATCH_BUS, id->bustype);
 679        ADD(alias, "v", id->flags & INPUT_DEVICE_ID_MATCH_VENDOR, id->vendor);
 680        ADD(alias, "p", id->flags & INPUT_DEVICE_ID_MATCH_PRODUCT, id->product);
 681        ADD(alias, "e", id->flags & INPUT_DEVICE_ID_MATCH_VERSION, id->version);
 682
 683        sprintf(alias + strlen(alias), "-e*");
 684        if (id->flags & INPUT_DEVICE_ID_MATCH_EVBIT)
 685                do_input(alias, id->evbit, 0, INPUT_DEVICE_ID_EV_MAX);
 686        sprintf(alias + strlen(alias), "k*");
 687        if (id->flags & INPUT_DEVICE_ID_MATCH_KEYBIT)
 688                do_input(alias, id->keybit,
 689                         INPUT_DEVICE_ID_KEY_MIN_INTERESTING,
 690                         INPUT_DEVICE_ID_KEY_MAX);
 691        sprintf(alias + strlen(alias), "r*");
 692        if (id->flags & INPUT_DEVICE_ID_MATCH_RELBIT)
 693                do_input(alias, id->relbit, 0, INPUT_DEVICE_ID_REL_MAX);
 694        sprintf(alias + strlen(alias), "a*");
 695        if (id->flags & INPUT_DEVICE_ID_MATCH_ABSBIT)
 696                do_input(alias, id->absbit, 0, INPUT_DEVICE_ID_ABS_MAX);
 697        sprintf(alias + strlen(alias), "m*");
 698        if (id->flags & INPUT_DEVICE_ID_MATCH_MSCIT)
 699                do_input(alias, id->mscbit, 0, INPUT_DEVICE_ID_MSC_MAX);
 700        sprintf(alias + strlen(alias), "l*");
 701        if (id->flags & INPUT_DEVICE_ID_MATCH_LEDBIT)
 702                do_input(alias, id->ledbit, 0, INPUT_DEVICE_ID_LED_MAX);
 703        sprintf(alias + strlen(alias), "s*");
 704        if (id->flags & INPUT_DEVICE_ID_MATCH_SNDBIT)
 705                do_input(alias, id->sndbit, 0, INPUT_DEVICE_ID_SND_MAX);
 706        sprintf(alias + strlen(alias), "f*");
 707        if (id->flags & INPUT_DEVICE_ID_MATCH_FFBIT)
 708                do_input(alias, id->ffbit, 0, INPUT_DEVICE_ID_FF_MAX);
 709        sprintf(alias + strlen(alias), "w*");
 710        if (id->flags & INPUT_DEVICE_ID_MATCH_SWBIT)
 711                do_input(alias, id->swbit, 0, INPUT_DEVICE_ID_SW_MAX);
 712        return 1;
 713}
 714ADD_TO_DEVTABLE("input", struct input_device_id, do_input_entry);
 715
 716static int do_eisa_entry(const char *filename, struct eisa_device_id *eisa,
 717                char *alias)
 718{
 719        if (eisa->sig[0])
 720                sprintf(alias, EISA_DEVICE_MODALIAS_FMT "*", eisa->sig);
 721        else
 722                strcat(alias, "*");
 723        return 1;
 724}
 725ADD_TO_DEVTABLE("eisa", struct eisa_device_id, do_eisa_entry);
 726
 727/* Looks like: parisc:tNhvNrevNsvN */
 728static int do_parisc_entry(const char *filename, struct parisc_device_id *id,
 729                char *alias)
 730{
 731        id->hw_type = TO_NATIVE(id->hw_type);
 732        id->hversion = TO_NATIVE(id->hversion);
 733        id->hversion_rev = TO_NATIVE(id->hversion_rev);
 734        id->sversion = TO_NATIVE(id->sversion);
 735
 736        strcpy(alias, "parisc:");
 737        ADD(alias, "t", id->hw_type != PA_HWTYPE_ANY_ID, id->hw_type);
 738        ADD(alias, "hv", id->hversion != PA_HVERSION_ANY_ID, id->hversion);
 739        ADD(alias, "rev", id->hversion_rev != PA_HVERSION_REV_ANY_ID, id->hversion_rev);
 740        ADD(alias, "sv", id->sversion != PA_SVERSION_ANY_ID, id->sversion);
 741
 742        add_wildcard(alias);
 743        return 1;
 744}
 745ADD_TO_DEVTABLE("parisc", struct parisc_device_id, do_parisc_entry);
 746
 747/* Looks like: sdio:cNvNdN. */
 748static int do_sdio_entry(const char *filename,
 749                        struct sdio_device_id *id, char *alias)
 750{
 751        id->class = TO_NATIVE(id->class);
 752        id->vendor = TO_NATIVE(id->vendor);
 753        id->device = TO_NATIVE(id->device);
 754
 755        strcpy(alias, "sdio:");
 756        ADD(alias, "c", id->class != (__u8)SDIO_ANY_ID, id->class);
 757        ADD(alias, "v", id->vendor != (__u16)SDIO_ANY_ID, id->vendor);
 758        ADD(alias, "d", id->device != (__u16)SDIO_ANY_ID, id->device);
 759        add_wildcard(alias);
 760        return 1;
 761}
 762ADD_TO_DEVTABLE("sdio", struct sdio_device_id, do_sdio_entry);
 763
 764/* Looks like: ssb:vNidNrevN. */
 765static int do_ssb_entry(const char *filename,
 766                        struct ssb_device_id *id, char *alias)
 767{
 768        id->vendor = TO_NATIVE(id->vendor);
 769        id->coreid = TO_NATIVE(id->coreid);
 770        id->revision = TO_NATIVE(id->revision);
 771
 772        strcpy(alias, "ssb:");
 773        ADD(alias, "v", id->vendor != SSB_ANY_VENDOR, id->vendor);
 774        ADD(alias, "id", id->coreid != SSB_ANY_ID, id->coreid);
 775        ADD(alias, "rev", id->revision != SSB_ANY_REV, id->revision);
 776        add_wildcard(alias);
 777        return 1;
 778}
 779ADD_TO_DEVTABLE("ssb", struct ssb_device_id, do_ssb_entry);
 780
 781/* Looks like: bcma:mNidNrevNclN. */
 782static int do_bcma_entry(const char *filename,
 783                         struct bcma_device_id *id, char *alias)
 784{
 785        id->manuf = TO_NATIVE(id->manuf);
 786        id->id = TO_NATIVE(id->id);
 787        id->rev = TO_NATIVE(id->rev);
 788        id->class = TO_NATIVE(id->class);
 789
 790        strcpy(alias, "bcma:");
 791        ADD(alias, "m", id->manuf != BCMA_ANY_MANUF, id->manuf);
 792        ADD(alias, "id", id->id != BCMA_ANY_ID, id->id);
 793        ADD(alias, "rev", id->rev != BCMA_ANY_REV, id->rev);
 794        ADD(alias, "cl", id->class != BCMA_ANY_CLASS, id->class);
 795        add_wildcard(alias);
 796        return 1;
 797}
 798ADD_TO_DEVTABLE("bcma", struct bcma_device_id, do_bcma_entry);
 799
 800/* Looks like: virtio:dNvN */
 801static int do_virtio_entry(const char *filename, struct virtio_device_id *id,
 802                           char *alias)
 803{
 804        id->device = TO_NATIVE(id->device);
 805        id->vendor = TO_NATIVE(id->vendor);
 806
 807        strcpy(alias, "virtio:");
 808        ADD(alias, "d", id->device != VIRTIO_DEV_ANY_ID, id->device);
 809        ADD(alias, "v", id->vendor != VIRTIO_DEV_ANY_ID, id->vendor);
 810
 811        add_wildcard(alias);
 812        return 1;
 813}
 814ADD_TO_DEVTABLE("virtio", struct virtio_device_id, do_virtio_entry);
 815
 816/*
 817 * Looks like: vmbus:guid
 818 * Each byte of the guid will be represented by two hex characters
 819 * in the name.
 820 */
 821
 822static int do_vmbus_entry(const char *filename, struct hv_vmbus_device_id *id,
 823                          char *alias)
 824{
 825        int i;
 826        char guid_name[((sizeof(id->guid) + 1)) * 2];
 827
 828        for (i = 0; i < (sizeof(id->guid) * 2); i += 2)
 829                sprintf(&guid_name[i], "%02x", id->guid[i/2]);
 830
 831        strcpy(alias, "vmbus:");
 832        strcat(alias, guid_name);
 833
 834        return 1;
 835}
 836ADD_TO_DEVTABLE("vmbus", struct hv_vmbus_device_id, do_vmbus_entry);
 837
 838/* Looks like: i2c:S */
 839static int do_i2c_entry(const char *filename, struct i2c_device_id *id,
 840                        char *alias)
 841{
 842        sprintf(alias, I2C_MODULE_PREFIX "%s", id->name);
 843
 844        return 1;
 845}
 846ADD_TO_DEVTABLE("i2c", struct i2c_device_id, do_i2c_entry);
 847
 848/* Looks like: spi:S */
 849static int do_spi_entry(const char *filename, struct spi_device_id *id,
 850                        char *alias)
 851{
 852        sprintf(alias, SPI_MODULE_PREFIX "%s", id->name);
 853
 854        return 1;
 855}
 856ADD_TO_DEVTABLE("spi", struct spi_device_id, do_spi_entry);
 857
 858static const struct dmifield {
 859        const char *prefix;
 860        int field;
 861} dmi_fields[] = {
 862        { "bvn", DMI_BIOS_VENDOR },
 863        { "bvr", DMI_BIOS_VERSION },
 864        { "bd",  DMI_BIOS_DATE },
 865        { "svn", DMI_SYS_VENDOR },
 866        { "pn",  DMI_PRODUCT_NAME },
 867        { "pvr", DMI_PRODUCT_VERSION },
 868        { "rvn", DMI_BOARD_VENDOR },
 869        { "rn",  DMI_BOARD_NAME },
 870        { "rvr", DMI_BOARD_VERSION },
 871        { "cvn", DMI_CHASSIS_VENDOR },
 872        { "ct",  DMI_CHASSIS_TYPE },
 873        { "cvr", DMI_CHASSIS_VERSION },
 874        { NULL,  DMI_NONE }
 875};
 876
 877static void dmi_ascii_filter(char *d, const char *s)
 878{
 879        /* Filter out characters we don't want to see in the modalias string */
 880        for (; *s; s++)
 881                if (*s > ' ' && *s < 127 && *s != ':')
 882                        *(d++) = *s;
 883
 884        *d = 0;
 885}
 886
 887
 888static int do_dmi_entry(const char *filename, struct dmi_system_id *id,
 889                        char *alias)
 890{
 891        int i, j;
 892
 893        sprintf(alias, "dmi*");
 894
 895        for (i = 0; i < ARRAY_SIZE(dmi_fields); i++) {
 896                for (j = 0; j < 4; j++) {
 897                        if (id->matches[j].slot &&
 898                            id->matches[j].slot == dmi_fields[i].field) {
 899                                sprintf(alias + strlen(alias), ":%s*",
 900                                        dmi_fields[i].prefix);
 901                                dmi_ascii_filter(alias + strlen(alias),
 902                                                 id->matches[j].substr);
 903                                strcat(alias, "*");
 904                        }
 905                }
 906        }
 907
 908        strcat(alias, ":");
 909        return 1;
 910}
 911ADD_TO_DEVTABLE("dmi", struct dmi_system_id, do_dmi_entry);
 912
 913static int do_platform_entry(const char *filename,
 914                             struct platform_device_id *id, char *alias)
 915{
 916        sprintf(alias, PLATFORM_MODULE_PREFIX "%s", id->name);
 917        return 1;
 918}
 919ADD_TO_DEVTABLE("platform", struct platform_device_id, do_platform_entry);
 920
 921static int do_mdio_entry(const char *filename,
 922                         struct mdio_device_id *id, char *alias)
 923{
 924        int i;
 925
 926        alias += sprintf(alias, MDIO_MODULE_PREFIX);
 927
 928        for (i = 0; i < 32; i++) {
 929                if (!((id->phy_id_mask >> (31-i)) & 1))
 930                        *(alias++) = '?';
 931                else if ((id->phy_id >> (31-i)) & 1)
 932                        *(alias++) = '1';
 933                else
 934                        *(alias++) = '0';
 935        }
 936
 937        /* Terminate the string */
 938        *alias = 0;
 939
 940        return 1;
 941}
 942ADD_TO_DEVTABLE("mdio", struct mdio_device_id, do_mdio_entry);
 943
 944/* Looks like: zorro:iN. */
 945static int do_zorro_entry(const char *filename, struct zorro_device_id *id,
 946                          char *alias)
 947{
 948        id->id = TO_NATIVE(id->id);
 949        strcpy(alias, "zorro:");
 950        ADD(alias, "i", id->id != ZORRO_WILDCARD, id->id);
 951        return 1;
 952}
 953ADD_TO_DEVTABLE("zorro", struct zorro_device_id, do_zorro_entry);
 954
 955/* looks like: "pnp:dD" */
 956static int do_isapnp_entry(const char *filename,
 957                           struct isapnp_device_id *id, char *alias)
 958{
 959        sprintf(alias, "pnp:d%c%c%c%x%x%x%x*",
 960                'A' + ((id->vendor >> 2) & 0x3f) - 1,
 961                'A' + (((id->vendor & 3) << 3) | ((id->vendor >> 13) & 7)) - 1,
 962                'A' + ((id->vendor >> 8) & 0x1f) - 1,
 963                (id->function >> 4) & 0x0f, id->function & 0x0f,
 964                (id->function >> 12) & 0x0f, (id->function >> 8) & 0x0f);
 965        return 1;
 966}
 967ADD_TO_DEVTABLE("isapnp", struct isapnp_device_id, do_isapnp_entry);
 968
 969/*
 970 * Append a match expression for a single masked hex digit.
 971 * outp points to a pointer to the character at which to append.
 972 *      *outp is updated on return to point just after the appended text,
 973 *      to facilitate further appending.
 974 */
 975static void append_nibble_mask(char **outp,
 976                               unsigned int nibble, unsigned int mask)
 977{
 978        char *p = *outp;
 979        unsigned int i;
 980
 981        switch (mask) {
 982        case 0:
 983                *p++ = '?';
 984                break;
 985
 986        case 0xf:
 987                p += sprintf(p, "%X",  nibble);
 988                break;
 989
 990        default:
 991                /*
 992                 * Dumbly emit a match pattern for all possible matching
 993                 * digits.  This could be improved in some cases using ranges,
 994                 * but it has the advantage of being trivially correct, and is
 995                 * often optimal.
 996                 */
 997                *p++ = '[';
 998                for (i = 0; i < 0x10; i++)
 999                        if ((i & mask) == nibble)
1000                                p += sprintf(p, "%X", i);
1001                *p++ = ']';
1002        }
1003
1004        /* Ensure that the string remains NUL-terminated: */
1005        *p = '\0';
1006
1007        /* Advance the caller's end-of-string pointer: */
1008        *outp = p;
1009}
1010
1011/*
1012 * looks like: "amba:dN"
1013 *
1014 * N is exactly 8 digits, where each is an upper-case hex digit, or
1015 *      a ? or [] pattern matching exactly one digit.
1016 */
1017static int do_amba_entry(const char *filename,
1018                         struct amba_id *id, char *alias)
1019{
1020        unsigned int digit;
1021        char *p = alias;
1022
1023        if ((id->id & id->mask) != id->id)
1024                fatal("%s: Masked-off bit(s) of AMBA device ID are non-zero: "
1025                      "id=0x%08X, mask=0x%08X.  Please fix this driver.\n",
1026                      filename, id->id, id->mask);
1027
1028        p += sprintf(alias, "amba:d");
1029        for (digit = 0; digit < 8; digit++)
1030                append_nibble_mask(&p,
1031                                   (id->id >> (4 * (7 - digit))) & 0xf,
1032                                   (id->mask >> (4 * (7 - digit))) & 0xf);
1033
1034        return 1;
1035}
1036ADD_TO_DEVTABLE("amba", struct amba_id, do_amba_entry);
1037
1038/* LOOKS like x86cpu:vendor:VVVV:family:FFFF:model:MMMM:feature:*,FEAT,*
1039 * All fields are numbers. It would be nicer to use strings for vendor
1040 * and feature, but getting those out of the build system here is too
1041 * complicated.
1042 */
1043
1044static int do_x86cpu_entry(const char *filename, struct x86_cpu_id *id,
1045                           char *alias)
1046{
1047        id->feature = TO_NATIVE(id->feature);
1048        id->family = TO_NATIVE(id->family);
1049        id->model = TO_NATIVE(id->model);
1050        id->vendor = TO_NATIVE(id->vendor);
1051
1052        strcpy(alias, "x86cpu:");
1053        ADD(alias, "vendor:",  id->vendor != X86_VENDOR_ANY, id->vendor);
1054        ADD(alias, ":family:", id->family != X86_FAMILY_ANY, id->family);
1055        ADD(alias, ":model:",  id->model  != X86_MODEL_ANY,  id->model);
1056        strcat(alias, ":feature:*");
1057        if (id->feature != X86_FEATURE_ANY)
1058                sprintf(alias + strlen(alias), "%04X*", id->feature);
1059        return 1;
1060}
1061ADD_TO_DEVTABLE("x86cpu", struct x86_cpu_id, do_x86cpu_entry);
1062
1063/* Does namelen bytes of name exactly match the symbol? */
1064static bool sym_is(const char *name, unsigned namelen, const char *symbol)
1065{
1066        if (namelen != strlen(symbol))
1067                return false;
1068
1069        return memcmp(name, symbol, namelen) == 0;
1070}
1071
1072static void do_table(void *symval, unsigned long size,
1073                     unsigned long id_size,
1074                     const char *device_id,
1075                     void *function,
1076                     struct module *mod)
1077{
1078        unsigned int i;
1079        char alias[500];
1080        int (*do_entry)(const char *, void *entry, char *alias) = function;
1081
1082        device_id_check(mod->name, device_id, size, id_size, symval);
1083        /* Leave last one: it's the terminator. */
1084        size -= id_size;
1085
1086        for (i = 0; i < size; i += id_size) {
1087                if (do_entry(mod->name, symval+i, alias)) {
1088                        buf_printf(&mod->dev_table_buf,
1089                                   "MODULE_ALIAS(\"%s\");\n", alias);
1090                }
1091        }
1092}
1093
1094/* Create MODULE_ALIAS() statements.
1095 * At this time, we cannot write the actual output C source yet,
1096 * so we write into the mod->dev_table_buf buffer. */
1097void handle_moddevtable(struct module *mod, struct elf_info *info,
1098                        Elf_Sym *sym, const char *symname)
1099{
1100        void *symval;
1101        char *zeros = NULL;
1102        const char *name;
1103        unsigned int namelen;
1104
1105        /* We're looking for a section relative symbol */
1106        if (!sym->st_shndx || get_secindex(info, sym) >= info->num_sections)
1107                return;
1108
1109        /* We're looking for an object */
1110        if (ELF_ST_TYPE(sym->st_info) != STT_OBJECT)
1111                return;
1112
1113        /* All our symbols are of form <prefix>__mod_XXX_device_table. */
1114        name = strstr(symname, "__mod_");
1115        if (!name)
1116                return;
1117        name += strlen("__mod_");
1118        namelen = strlen(name);
1119        if (namelen < strlen("_device_table"))
1120                return;
1121        if (strcmp(name + namelen - strlen("_device_table"), "_device_table"))
1122                return;
1123        namelen -= strlen("_device_table");
1124
1125        /* Handle all-NULL symbols allocated into .bss */
1126        if (info->sechdrs[get_secindex(info, sym)].sh_type & SHT_NOBITS) {
1127                zeros = calloc(1, sym->st_size);
1128                symval = zeros;
1129        } else {
1130                symval = (void *)info->hdr
1131                        + info->sechdrs[get_secindex(info, sym)].sh_offset
1132                        + sym->st_value;
1133        }
1134
1135        /* First handle the "special" cases */
1136        if (sym_is(name, namelen, "usb"))
1137                do_usb_table(symval, sym->st_size, mod);
1138        else if (sym_is(name, namelen, "pnp"))
1139                do_pnp_device_entry(symval, sym->st_size, mod);
1140        else if (sym_is(name, namelen, "pnp_card"))
1141                do_pnp_card_entries(symval, sym->st_size, mod);
1142        else {
1143                struct devtable **p;
1144                INIT_SECTION(__devtable);
1145
1146                for (p = __start___devtable; p < __stop___devtable; p++) {
1147                        if (sym_is(name, namelen, (*p)->device_id)) {
1148                                do_table(symval, sym->st_size, (*p)->id_size,
1149                                         (*p)->device_id, (*p)->function, mod);
1150                                break;
1151                        }
1152                }
1153        }
1154        free(zeros);
1155}
1156
1157/* Now add out buffered information to the generated C source */
1158void add_moddevtable(struct buffer *buf, struct module *mod)
1159{
1160        buf_printf(buf, "\n");
1161        buf_write(buf, mod->dev_table_buf.p, mod->dev_table_buf.pos);
1162        free(mod->dev_table_buf.p);
1163}
1164
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