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.
5 * Copyright 2002-2003 Rusty Russell, IBM Corporation
6 * 2003 Kai Germaschewski
9 * This software may be used and distributed according to the terms
10 * of the GNU General Public License, incorporated herein by reference.
14 #include "devicetable-offsets.h"
16 /* We use the ELF typedefs for kernel_ulong_t but bite the bullet and
17 * use either stdint.h or inttypes.h for the rest. */
18 #if KERNEL_ELFCLASS == ELFCLASS32
19 typedef Elf32_Addr kernel_ulong_t;
20 #define BITS_PER_LONG 32
22 typedef Elf64_Addr kernel_ulong_t;
23 #define BITS_PER_LONG 64
34 typedef uint32_t __u32;
35 typedef uint16_t __u16;
36 typedef unsigned char __u8;
44 /* Big exception to the "don't include kernel headers into userspace, which
45 * even potentially has different endianness and word sizes, since
46 * we handle those differences explicitly below */
47 #include "../../include/linux/mod_devicetable.h"
49 /* This array collects all instances that use the generic do_table */
51 const char *device_id; /* name of table, __mod_<name>__*_device_table. */
52 unsigned long id_size;
53 int (*do_entry)(const char *filename, void *symval, char *alias);
56 /* Define a variable f that holds the value of field f of struct devid
59 #define DEF_FIELD(m, devid, f) \
60 typeof(((struct devid *)0)->f) f = TO_NATIVE(*(typeof(f) *)((m) + OFF_##devid##_##f))
62 /* Define a variable v that holds the address of field f of struct devid
63 * based at address m. Due to the way typeof works, for a field of type
64 * T[N] the variable has type T(*)[N], _not_ T*.
66 #define DEF_FIELD_ADDR_VAR(m, devid, f, v) \
67 typeof(((struct devid *)0)->f) *v = ((m) + OFF_##devid##_##f)
69 /* Define a variable f that holds the address of field f of struct devid
70 * based at address m. Due to the way typeof works, for a field of type
71 * T[N] the variable has type T(*)[N], _not_ T*.
73 #define DEF_FIELD_ADDR(m, devid, f) \
74 DEF_FIELD_ADDR_VAR(m, devid, f, f)
76 #define ADD(str, sep, cond, field) \
80 sprintf(str + strlen(str), \
81 sizeof(field) == 1 ? "%02X" : \
82 sizeof(field) == 2 ? "%04X" : \
83 sizeof(field) == 4 ? "%08X" : "", \
86 sprintf(str + strlen(str), "*"); \
89 /* End in a wildcard, for future extension */
90 static inline void add_wildcard(char *str)
92 int len = strlen(str);
94 if (str[len - 1] != '*')
95 strcat(str + len, "*");
98 static inline void add_uuid(char *str, uuid_le uuid)
100 int len = strlen(str);
102 sprintf(str + len, "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
103 uuid.b[3], uuid.b[2], uuid.b[1], uuid.b[0],
104 uuid.b[5], uuid.b[4], uuid.b[7], uuid.b[6],
105 uuid.b[8], uuid.b[9], uuid.b[10], uuid.b[11],
106 uuid.b[12], uuid.b[13], uuid.b[14], uuid.b[15]);
110 * Check that sizeof(device_id type) are consistent with size of section
111 * in .o file. If in-consistent then userspace and kernel does not agree
112 * on actual size which is a bug.
113 * Also verify that the final entry in the table is all zeros.
114 * Ignore both checks if build host differ from target host and size differs.
116 static void device_id_check(const char *modname, const char *device_id,
117 unsigned long size, unsigned long id_size,
122 if (size % id_size || size < id_size) {
123 fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo "
125 "section __mod_%s__<identifier>_device_table=%lu.\n"
126 "Fix definition of struct %s_device_id "
127 "in mod_devicetable.h\n",
128 modname, device_id, id_size, device_id, size, device_id);
130 /* Verify last one is a terminator */
131 for (i = 0; i < id_size; i++ ) {
132 if (*(uint8_t*)(symval+size-id_size+i)) {
133 fprintf(stderr,"%s: struct %s_device_id is %lu bytes. "
134 "The last of %lu is:\n",
135 modname, device_id, id_size, size / id_size);
136 for (i = 0; i < id_size; i++ )
137 fprintf(stderr,"0x%02x ",
138 *(uint8_t*)(symval+size-id_size+i) );
139 fprintf(stderr,"\n");
140 fatal("%s: struct %s_device_id is not terminated "
141 "with a NULL entry!\n", modname, device_id);
146 /* USB is special because the bcdDevice can be matched against a numeric range */
147 /* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipNinN" */
148 static void do_usb_entry(void *symval,
149 unsigned int bcdDevice_initial, int bcdDevice_initial_digits,
150 unsigned char range_lo, unsigned char range_hi,
151 unsigned char max, struct module *mod)
154 DEF_FIELD(symval, usb_device_id, match_flags);
155 DEF_FIELD(symval, usb_device_id, idVendor);
156 DEF_FIELD(symval, usb_device_id, idProduct);
157 DEF_FIELD(symval, usb_device_id, bcdDevice_lo);
158 DEF_FIELD(symval, usb_device_id, bDeviceClass);
159 DEF_FIELD(symval, usb_device_id, bDeviceSubClass);
160 DEF_FIELD(symval, usb_device_id, bDeviceProtocol);
161 DEF_FIELD(symval, usb_device_id, bInterfaceClass);
162 DEF_FIELD(symval, usb_device_id, bInterfaceSubClass);
163 DEF_FIELD(symval, usb_device_id, bInterfaceProtocol);
164 DEF_FIELD(symval, usb_device_id, bInterfaceNumber);
166 strcpy(alias, "usb:");
167 ADD(alias, "v", match_flags&USB_DEVICE_ID_MATCH_VENDOR,
169 ADD(alias, "p", match_flags&USB_DEVICE_ID_MATCH_PRODUCT,
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),
185 sprintf(alias + strlen(alias),
186 range_lo < 0x9 ? "[%X-9" : "[%X",
188 sprintf(alias + strlen(alias),
189 range_hi > 0xA ? "A-%X]" : "%X]",
193 if (bcdDevice_initial_digits < (sizeof(bcdDevice_lo) * 2 - 1))
196 ADD(alias, "dc", match_flags&USB_DEVICE_ID_MATCH_DEV_CLASS,
198 ADD(alias, "dsc", match_flags&USB_DEVICE_ID_MATCH_DEV_SUBCLASS,
200 ADD(alias, "dp", match_flags&USB_DEVICE_ID_MATCH_DEV_PROTOCOL,
202 ADD(alias, "ic", match_flags&USB_DEVICE_ID_MATCH_INT_CLASS,
204 ADD(alias, "isc", match_flags&USB_DEVICE_ID_MATCH_INT_SUBCLASS,
206 ADD(alias, "ip", match_flags&USB_DEVICE_ID_MATCH_INT_PROTOCOL,
208 ADD(alias, "in", match_flags&USB_DEVICE_ID_MATCH_INT_NUMBER,
212 buf_printf(&mod->dev_table_buf,
213 "MODULE_ALIAS(\"%s\");\n", alias);
216 /* Handles increment/decrement of BCD formatted integers */
217 /* Returns the previous value, so it works like i++ or i-- */
218 static unsigned int incbcd(unsigned int *bcd,
223 unsigned int init = *bcd, i, j;
224 unsigned long long c, dec = 0;
226 /* If bcd is not in BCD format, just increment */
232 /* Convert BCD to Decimal */
233 for (i=0 ; i < chars ; i++) {
234 c = (*bcd >> (i << 2)) & 0xf;
235 c = c > 9 ? 9 : c; /* force to bcd just in case */
236 for (j=0 ; j < i ; j++)
241 /* Do our increment/decrement */
245 /* Convert back to BCD */
246 for (i=0 ; i < chars ; i++) {
247 for (c=1,j=0 ; j < i ; j++)
250 *bcd += c << (i << 2);
255 static void do_usb_entry_multi(void *symval, struct module *mod)
257 unsigned int devlo, devhi;
258 unsigned char chi, clo, max;
261 DEF_FIELD(symval, usb_device_id, match_flags);
262 DEF_FIELD(symval, usb_device_id, idVendor);
263 DEF_FIELD(symval, usb_device_id, idProduct);
264 DEF_FIELD(symval, usb_device_id, bcdDevice_lo);
265 DEF_FIELD(symval, usb_device_id, bcdDevice_hi);
266 DEF_FIELD(symval, usb_device_id, bDeviceClass);
267 DEF_FIELD(symval, usb_device_id, bInterfaceClass);
269 devlo = match_flags & USB_DEVICE_ID_MATCH_DEV_LO ?
271 devhi = match_flags & USB_DEVICE_ID_MATCH_DEV_HI ?
272 bcdDevice_hi : ~0x0U;
274 /* Figure out if this entry is in bcd or hex format */
275 max = 0x9; /* Default to decimal format */
276 for (ndigits = 0 ; ndigits < sizeof(bcdDevice_lo) * 2 ; ndigits++) {
277 clo = (devlo >> (ndigits << 2)) & 0xf;
278 chi = ((devhi > 0x9999 ? 0x9999 : devhi) >> (ndigits << 2)) & 0xf;
279 if (clo > max || chi > max) {
286 * Some modules (visor) have empty slots as placeholder for
287 * run-time specification that results in catch-all alias
289 if (!(idVendor | idProduct | bDeviceClass | bInterfaceClass))
292 /* Convert numeric bcdDevice range into fnmatch-able pattern(s) */
293 for (ndigits = sizeof(bcdDevice_lo) * 2 - 1; devlo <= devhi; ndigits--) {
296 if (chi > max) /* If we are in bcd mode, truncate if necessary */
301 if (devlo == devhi || !ndigits) {
302 do_usb_entry(symval, devlo, ndigits, clo, chi, max, mod);
308 incbcd(&devlo, 1, max,
309 sizeof(bcdDevice_lo) * 2),
310 ndigits, clo, max, max, mod);
314 incbcd(&devhi, -1, max,
315 sizeof(bcdDevice_lo) * 2),
316 ndigits, 0x0, chi, max, mod);
320 static void do_usb_table(void *symval, unsigned long size,
324 const unsigned long id_size = SIZE_usb_device_id;
326 device_id_check(mod->name, "usb", size, id_size, symval);
328 /* Leave last one: it's the terminator. */
331 for (i = 0; i < size; i += id_size)
332 do_usb_entry_multi(symval + i, mod);
335 static void do_of_entry_multi(void *symval, struct module *mod)
341 DEF_FIELD_ADDR(symval, of_device_id, name);
342 DEF_FIELD_ADDR(symval, of_device_id, type);
343 DEF_FIELD_ADDR(symval, of_device_id, compatible);
345 len = sprintf(alias, "of:N%sT%s", (*name)[0] ? *name : "*",
346 (*type)[0] ? *type : "*");
348 if ((*compatible)[0])
349 sprintf(&alias[len], "%sC%s", (*type)[0] ? "*" : "",
352 /* Replace all whitespace with underscores */
353 for (tmp = alias; tmp && *tmp; tmp++)
357 buf_printf(&mod->dev_table_buf, "MODULE_ALIAS(\"%s\");\n", alias);
360 buf_printf(&mod->dev_table_buf, "MODULE_ALIAS(\"%s\");\n", alias);
363 static void do_of_table(void *symval, unsigned long size,
367 const unsigned long id_size = SIZE_of_device_id;
369 device_id_check(mod->name, "of", size, id_size, symval);
371 /* Leave last one: it's the terminator. */
374 for (i = 0; i < size; i += id_size)
375 do_of_entry_multi(symval + i, mod);
378 /* Looks like: hid:bNvNpN */
379 static int do_hid_entry(const char *filename,
380 void *symval, char *alias)
382 DEF_FIELD(symval, hid_device_id, bus);
383 DEF_FIELD(symval, hid_device_id, group);
384 DEF_FIELD(symval, hid_device_id, vendor);
385 DEF_FIELD(symval, hid_device_id, product);
387 sprintf(alias, "hid:");
388 ADD(alias, "b", bus != HID_BUS_ANY, bus);
389 ADD(alias, "g", group != HID_GROUP_ANY, group);
390 ADD(alias, "v", vendor != HID_ANY_ID, vendor);
391 ADD(alias, "p", product != HID_ANY_ID, product);
396 /* Looks like: ieee1394:venNmoNspNverN */
397 static int do_ieee1394_entry(const char *filename,
398 void *symval, char *alias)
400 DEF_FIELD(symval, ieee1394_device_id, match_flags);
401 DEF_FIELD(symval, ieee1394_device_id, vendor_id);
402 DEF_FIELD(symval, ieee1394_device_id, model_id);
403 DEF_FIELD(symval, ieee1394_device_id, specifier_id);
404 DEF_FIELD(symval, ieee1394_device_id, version);
406 strcpy(alias, "ieee1394:");
407 ADD(alias, "ven", match_flags & IEEE1394_MATCH_VENDOR_ID,
409 ADD(alias, "mo", match_flags & IEEE1394_MATCH_MODEL_ID,
411 ADD(alias, "sp", match_flags & IEEE1394_MATCH_SPECIFIER_ID,
413 ADD(alias, "ver", match_flags & IEEE1394_MATCH_VERSION,
420 /* Looks like: pci:vNdNsvNsdNbcNscNiN. */
421 static int do_pci_entry(const char *filename,
422 void *symval, char *alias)
424 /* Class field can be divided into these three. */
425 unsigned char baseclass, subclass, interface,
426 baseclass_mask, subclass_mask, interface_mask;
428 DEF_FIELD(symval, pci_device_id, vendor);
429 DEF_FIELD(symval, pci_device_id, device);
430 DEF_FIELD(symval, pci_device_id, subvendor);
431 DEF_FIELD(symval, pci_device_id, subdevice);
432 DEF_FIELD(symval, pci_device_id, class);
433 DEF_FIELD(symval, pci_device_id, class_mask);
435 strcpy(alias, "pci:");
436 ADD(alias, "v", vendor != PCI_ANY_ID, vendor);
437 ADD(alias, "d", device != PCI_ANY_ID, device);
438 ADD(alias, "sv", subvendor != PCI_ANY_ID, subvendor);
439 ADD(alias, "sd", subdevice != PCI_ANY_ID, subdevice);
441 baseclass = (class) >> 16;
442 baseclass_mask = (class_mask) >> 16;
443 subclass = (class) >> 8;
444 subclass_mask = (class_mask) >> 8;
446 interface_mask = class_mask;
448 if ((baseclass_mask != 0 && baseclass_mask != 0xFF)
449 || (subclass_mask != 0 && subclass_mask != 0xFF)
450 || (interface_mask != 0 && interface_mask != 0xFF)) {
451 warn("Can't handle masks in %s:%04X\n",
452 filename, class_mask);
456 ADD(alias, "bc", baseclass_mask == 0xFF, baseclass);
457 ADD(alias, "sc", subclass_mask == 0xFF, subclass);
458 ADD(alias, "i", interface_mask == 0xFF, interface);
463 /* looks like: "ccw:tNmNdtNdmN" */
464 static int do_ccw_entry(const char *filename,
465 void *symval, char *alias)
467 DEF_FIELD(symval, ccw_device_id, match_flags);
468 DEF_FIELD(symval, ccw_device_id, cu_type);
469 DEF_FIELD(symval, ccw_device_id, cu_model);
470 DEF_FIELD(symval, ccw_device_id, dev_type);
471 DEF_FIELD(symval, ccw_device_id, dev_model);
473 strcpy(alias, "ccw:");
474 ADD(alias, "t", match_flags&CCW_DEVICE_ID_MATCH_CU_TYPE,
476 ADD(alias, "m", match_flags&CCW_DEVICE_ID_MATCH_CU_MODEL,
478 ADD(alias, "dt", match_flags&CCW_DEVICE_ID_MATCH_DEVICE_TYPE,
480 ADD(alias, "dm", match_flags&CCW_DEVICE_ID_MATCH_DEVICE_MODEL,
486 /* looks like: "ap:tN" */
487 static int do_ap_entry(const char *filename,
488 void *symval, char *alias)
490 DEF_FIELD(symval, ap_device_id, dev_type);
492 sprintf(alias, "ap:t%02X*", dev_type);
496 /* looks like: "css:tN" */
497 static int do_css_entry(const char *filename,
498 void *symval, char *alias)
500 DEF_FIELD(symval, css_device_id, type);
502 sprintf(alias, "css:t%01X", type);
506 /* Looks like: "serio:tyNprNidNexN" */
507 static int do_serio_entry(const char *filename,
508 void *symval, char *alias)
510 DEF_FIELD(symval, serio_device_id, type);
511 DEF_FIELD(symval, serio_device_id, proto);
512 DEF_FIELD(symval, serio_device_id, id);
513 DEF_FIELD(symval, serio_device_id, extra);
515 strcpy(alias, "serio:");
516 ADD(alias, "ty", type != SERIO_ANY, type);
517 ADD(alias, "pr", proto != SERIO_ANY, proto);
518 ADD(alias, "id", id != SERIO_ANY, id);
519 ADD(alias, "ex", extra != SERIO_ANY, extra);
525 /* looks like: "acpi:ACPI0003" or "acpi:PNP0C0B" or "acpi:LNXVIDEO" or
526 * "acpi:bbsspp" (bb=base-class, ss=sub-class, pp=prog-if)
528 * NOTE: Each driver should use one of the following : _HID, _CIDs
529 * or _CLS. Also, bb, ss, and pp can be substituted with ??
530 * as don't care byte.
532 static int do_acpi_entry(const char *filename,
533 void *symval, char *alias)
535 DEF_FIELD_ADDR(symval, acpi_device_id, id);
536 DEF_FIELD_ADDR(symval, acpi_device_id, cls);
537 DEF_FIELD_ADDR(symval, acpi_device_id, cls_msk);
539 if (id && strlen((const char *)*id))
540 sprintf(alias, "acpi*:%s:*", *id);
542 int i, byte_shift, cnt = 0;
545 sprintf(&alias[cnt], "acpi*:");
547 for (i = 1; i <= 3; i++) {
548 byte_shift = 8 * (3-i);
549 msk = (*cls_msk >> byte_shift) & 0xFF;
551 sprintf(&alias[cnt], "%02x",
552 (*cls >> byte_shift) & 0xFF);
554 sprintf(&alias[cnt], "??");
557 sprintf(&alias[cnt], ":*");
562 /* looks like: "pnp:dD" */
563 static void do_pnp_device_entry(void *symval, unsigned long size,
566 const unsigned long id_size = SIZE_pnp_device_id;
567 const unsigned int count = (size / id_size)-1;
570 device_id_check(mod->name, "pnp", size, id_size, symval);
572 for (i = 0; i < count; i++) {
573 DEF_FIELD_ADDR(symval + i*id_size, pnp_device_id, id);
574 char acpi_id[sizeof(*id)];
577 buf_printf(&mod->dev_table_buf,
578 "MODULE_ALIAS(\"pnp:d%s*\");\n", *id);
580 /* fix broken pnp bus lowercasing */
581 for (j = 0; j < sizeof(acpi_id); j++)
582 acpi_id[j] = toupper((*id)[j]);
583 buf_printf(&mod->dev_table_buf,
584 "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id);
588 /* looks like: "pnp:dD" for every device of the card */
589 static void do_pnp_card_entries(void *symval, unsigned long size,
592 const unsigned long id_size = SIZE_pnp_card_device_id;
593 const unsigned int count = (size / id_size)-1;
596 device_id_check(mod->name, "pnp", size, id_size, symval);
598 for (i = 0; i < count; i++) {
600 DEF_FIELD_ADDR(symval + i * id_size, pnp_card_device_id, devs);
602 for (j = 0; j < PNP_MAX_DEVICES; j++) {
603 const char *id = (char *)(*devs)[j].id;
610 /* find duplicate, already added value */
611 for (i2 = 0; i2 < i && !dup; i2++) {
612 DEF_FIELD_ADDR_VAR(symval + i2 * id_size,
616 for (j2 = 0; j2 < PNP_MAX_DEVICES; j2++) {
618 (char *)(*devs_dup)[j2].id;
623 if (!strcmp(id, id2)) {
630 /* add an individual alias for every device entry */
632 char acpi_id[PNP_ID_LEN];
635 buf_printf(&mod->dev_table_buf,
636 "MODULE_ALIAS(\"pnp:d%s*\");\n", id);
638 /* fix broken pnp bus lowercasing */
639 for (k = 0; k < sizeof(acpi_id); k++)
640 acpi_id[k] = toupper(id[k]);
641 buf_printf(&mod->dev_table_buf,
642 "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id);
648 /* Looks like: pcmcia:mNcNfNfnNpfnNvaNvbNvcNvdN. */
649 static int do_pcmcia_entry(const char *filename,
650 void *symval, char *alias)
653 DEF_FIELD(symval, pcmcia_device_id, match_flags);
654 DEF_FIELD(symval, pcmcia_device_id, manf_id);
655 DEF_FIELD(symval, pcmcia_device_id, card_id);
656 DEF_FIELD(symval, pcmcia_device_id, func_id);
657 DEF_FIELD(symval, pcmcia_device_id, function);
658 DEF_FIELD(symval, pcmcia_device_id, device_no);
659 DEF_FIELD_ADDR(symval, pcmcia_device_id, prod_id_hash);
661 for (i=0; i<4; i++) {
662 (*prod_id_hash)[i] = TO_NATIVE((*prod_id_hash)[i]);
665 strcpy(alias, "pcmcia:");
666 ADD(alias, "m", match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID,
668 ADD(alias, "c", match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID,
670 ADD(alias, "f", match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID,
672 ADD(alias, "fn", match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION,
674 ADD(alias, "pfn", match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO,
676 ADD(alias, "pa", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1, (*prod_id_hash)[0]);
677 ADD(alias, "pb", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2, (*prod_id_hash)[1]);
678 ADD(alias, "pc", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3, (*prod_id_hash)[2]);
679 ADD(alias, "pd", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4, (*prod_id_hash)[3]);
685 static int do_vio_entry(const char *filename, void *symval,
689 DEF_FIELD_ADDR(symval, vio_device_id, type);
690 DEF_FIELD_ADDR(symval, vio_device_id, compat);
692 sprintf(alias, "vio:T%sS%s", (*type)[0] ? *type : "*",
693 (*compat)[0] ? *compat : "*");
695 /* Replace all whitespace with underscores */
696 for (tmp = alias; tmp && *tmp; tmp++)
704 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
706 static void do_input(char *alias,
707 kernel_ulong_t *arr, unsigned int min, unsigned int max)
711 for (i = min / BITS_PER_LONG; i < max / BITS_PER_LONG + 1; i++)
712 arr[i] = TO_NATIVE(arr[i]);
713 for (i = min; i < max; i++)
714 if (arr[i / BITS_PER_LONG] & (1L << (i%BITS_PER_LONG)))
715 sprintf(alias + strlen(alias), "%X,*", i);
718 /* input:b0v0p0e0-eXkXrXaXmXlXsXfXwX where X is comma-separated %02X. */
719 static int do_input_entry(const char *filename, void *symval,
722 DEF_FIELD(symval, input_device_id, flags);
723 DEF_FIELD(symval, input_device_id, bustype);
724 DEF_FIELD(symval, input_device_id, vendor);
725 DEF_FIELD(symval, input_device_id, product);
726 DEF_FIELD(symval, input_device_id, version);
727 DEF_FIELD_ADDR(symval, input_device_id, evbit);
728 DEF_FIELD_ADDR(symval, input_device_id, keybit);
729 DEF_FIELD_ADDR(symval, input_device_id, relbit);
730 DEF_FIELD_ADDR(symval, input_device_id, absbit);
731 DEF_FIELD_ADDR(symval, input_device_id, mscbit);
732 DEF_FIELD_ADDR(symval, input_device_id, ledbit);
733 DEF_FIELD_ADDR(symval, input_device_id, sndbit);
734 DEF_FIELD_ADDR(symval, input_device_id, ffbit);
735 DEF_FIELD_ADDR(symval, input_device_id, swbit);
737 sprintf(alias, "input:");
739 ADD(alias, "b", flags & INPUT_DEVICE_ID_MATCH_BUS, bustype);
740 ADD(alias, "v", flags & INPUT_DEVICE_ID_MATCH_VENDOR, vendor);
741 ADD(alias, "p", flags & INPUT_DEVICE_ID_MATCH_PRODUCT, product);
742 ADD(alias, "e", flags & INPUT_DEVICE_ID_MATCH_VERSION, version);
744 sprintf(alias + strlen(alias), "-e*");
745 if (flags & INPUT_DEVICE_ID_MATCH_EVBIT)
746 do_input(alias, *evbit, 0, INPUT_DEVICE_ID_EV_MAX);
747 sprintf(alias + strlen(alias), "k*");
748 if (flags & INPUT_DEVICE_ID_MATCH_KEYBIT)
749 do_input(alias, *keybit,
750 INPUT_DEVICE_ID_KEY_MIN_INTERESTING,
751 INPUT_DEVICE_ID_KEY_MAX);
752 sprintf(alias + strlen(alias), "r*");
753 if (flags & INPUT_DEVICE_ID_MATCH_RELBIT)
754 do_input(alias, *relbit, 0, INPUT_DEVICE_ID_REL_MAX);
755 sprintf(alias + strlen(alias), "a*");
756 if (flags & INPUT_DEVICE_ID_MATCH_ABSBIT)
757 do_input(alias, *absbit, 0, INPUT_DEVICE_ID_ABS_MAX);
758 sprintf(alias + strlen(alias), "m*");
759 if (flags & INPUT_DEVICE_ID_MATCH_MSCIT)
760 do_input(alias, *mscbit, 0, INPUT_DEVICE_ID_MSC_MAX);
761 sprintf(alias + strlen(alias), "l*");
762 if (flags & INPUT_DEVICE_ID_MATCH_LEDBIT)
763 do_input(alias, *ledbit, 0, INPUT_DEVICE_ID_LED_MAX);
764 sprintf(alias + strlen(alias), "s*");
765 if (flags & INPUT_DEVICE_ID_MATCH_SNDBIT)
766 do_input(alias, *sndbit, 0, INPUT_DEVICE_ID_SND_MAX);
767 sprintf(alias + strlen(alias), "f*");
768 if (flags & INPUT_DEVICE_ID_MATCH_FFBIT)
769 do_input(alias, *ffbit, 0, INPUT_DEVICE_ID_FF_MAX);
770 sprintf(alias + strlen(alias), "w*");
771 if (flags & INPUT_DEVICE_ID_MATCH_SWBIT)
772 do_input(alias, *swbit, 0, INPUT_DEVICE_ID_SW_MAX);
776 static int do_eisa_entry(const char *filename, void *symval,
779 DEF_FIELD_ADDR(symval, eisa_device_id, sig);
781 sprintf(alias, EISA_DEVICE_MODALIAS_FMT "*", *sig);
787 /* Looks like: parisc:tNhvNrevNsvN */
788 static int do_parisc_entry(const char *filename, void *symval,
791 DEF_FIELD(symval, parisc_device_id, hw_type);
792 DEF_FIELD(symval, parisc_device_id, hversion);
793 DEF_FIELD(symval, parisc_device_id, hversion_rev);
794 DEF_FIELD(symval, parisc_device_id, sversion);
796 strcpy(alias, "parisc:");
797 ADD(alias, "t", hw_type != PA_HWTYPE_ANY_ID, hw_type);
798 ADD(alias, "hv", hversion != PA_HVERSION_ANY_ID, hversion);
799 ADD(alias, "rev", hversion_rev != PA_HVERSION_REV_ANY_ID, hversion_rev);
800 ADD(alias, "sv", sversion != PA_SVERSION_ANY_ID, sversion);
806 /* Looks like: sdio:cNvNdN. */
807 static int do_sdio_entry(const char *filename,
808 void *symval, char *alias)
810 DEF_FIELD(symval, sdio_device_id, class);
811 DEF_FIELD(symval, sdio_device_id, vendor);
812 DEF_FIELD(symval, sdio_device_id, device);
814 strcpy(alias, "sdio:");
815 ADD(alias, "c", class != (__u8)SDIO_ANY_ID, class);
816 ADD(alias, "v", vendor != (__u16)SDIO_ANY_ID, vendor);
817 ADD(alias, "d", device != (__u16)SDIO_ANY_ID, device);
822 /* Looks like: ssb:vNidNrevN. */
823 static int do_ssb_entry(const char *filename,
824 void *symval, char *alias)
826 DEF_FIELD(symval, ssb_device_id, vendor);
827 DEF_FIELD(symval, ssb_device_id, coreid);
828 DEF_FIELD(symval, ssb_device_id, revision);
830 strcpy(alias, "ssb:");
831 ADD(alias, "v", vendor != SSB_ANY_VENDOR, vendor);
832 ADD(alias, "id", coreid != SSB_ANY_ID, coreid);
833 ADD(alias, "rev", revision != SSB_ANY_REV, revision);
838 /* Looks like: bcma:mNidNrevNclN. */
839 static int do_bcma_entry(const char *filename,
840 void *symval, char *alias)
842 DEF_FIELD(symval, bcma_device_id, manuf);
843 DEF_FIELD(symval, bcma_device_id, id);
844 DEF_FIELD(symval, bcma_device_id, rev);
845 DEF_FIELD(symval, bcma_device_id, class);
847 strcpy(alias, "bcma:");
848 ADD(alias, "m", manuf != BCMA_ANY_MANUF, manuf);
849 ADD(alias, "id", id != BCMA_ANY_ID, id);
850 ADD(alias, "rev", rev != BCMA_ANY_REV, rev);
851 ADD(alias, "cl", class != BCMA_ANY_CLASS, class);
856 /* Looks like: virtio:dNvN */
857 static int do_virtio_entry(const char *filename, void *symval,
860 DEF_FIELD(symval, virtio_device_id, device);
861 DEF_FIELD(symval, virtio_device_id, vendor);
863 strcpy(alias, "virtio:");
864 ADD(alias, "d", device != VIRTIO_DEV_ANY_ID, device);
865 ADD(alias, "v", vendor != VIRTIO_DEV_ANY_ID, vendor);
872 * Looks like: vmbus:guid
873 * Each byte of the guid will be represented by two hex characters
877 static int do_vmbus_entry(const char *filename, void *symval,
881 DEF_FIELD_ADDR(symval, hv_vmbus_device_id, guid);
882 char guid_name[(sizeof(*guid) + 1) * 2];
884 for (i = 0; i < (sizeof(*guid) * 2); i += 2)
885 sprintf(&guid_name[i], "%02x", TO_NATIVE((guid->b)[i/2]));
887 strcpy(alias, "vmbus:");
888 strcat(alias, guid_name);
893 /* Looks like: rpmsg:S */
894 static int do_rpmsg_entry(const char *filename, void *symval,
897 DEF_FIELD_ADDR(symval, rpmsg_device_id, name);
898 sprintf(alias, RPMSG_DEVICE_MODALIAS_FMT, *name);
903 /* Looks like: i2c:S */
904 static int do_i2c_entry(const char *filename, void *symval,
907 DEF_FIELD_ADDR(symval, i2c_device_id, name);
908 sprintf(alias, I2C_MODULE_PREFIX "%s", *name);
913 /* Looks like: spi:S */
914 static int do_spi_entry(const char *filename, void *symval,
917 DEF_FIELD_ADDR(symval, spi_device_id, name);
918 sprintf(alias, SPI_MODULE_PREFIX "%s", *name);
923 static const struct dmifield {
927 { "bvn", DMI_BIOS_VENDOR },
928 { "bvr", DMI_BIOS_VERSION },
929 { "bd", DMI_BIOS_DATE },
930 { "svn", DMI_SYS_VENDOR },
931 { "pn", DMI_PRODUCT_NAME },
932 { "pvr", DMI_PRODUCT_VERSION },
933 { "rvn", DMI_BOARD_VENDOR },
934 { "rn", DMI_BOARD_NAME },
935 { "rvr", DMI_BOARD_VERSION },
936 { "cvn", DMI_CHASSIS_VENDOR },
937 { "ct", DMI_CHASSIS_TYPE },
938 { "cvr", DMI_CHASSIS_VERSION },
942 static void dmi_ascii_filter(char *d, const char *s)
944 /* Filter out characters we don't want to see in the modalias string */
946 if (*s > ' ' && *s < 127 && *s != ':')
953 static int do_dmi_entry(const char *filename, void *symval,
957 DEF_FIELD_ADDR(symval, dmi_system_id, matches);
958 sprintf(alias, "dmi*");
960 for (i = 0; i < ARRAY_SIZE(dmi_fields); i++) {
961 for (j = 0; j < 4; j++) {
962 if ((*matches)[j].slot &&
963 (*matches)[j].slot == dmi_fields[i].field) {
964 sprintf(alias + strlen(alias), ":%s*",
965 dmi_fields[i].prefix);
966 dmi_ascii_filter(alias + strlen(alias),
967 (*matches)[j].substr);
977 static int do_platform_entry(const char *filename,
978 void *symval, char *alias)
980 DEF_FIELD_ADDR(symval, platform_device_id, name);
981 sprintf(alias, PLATFORM_MODULE_PREFIX "%s", *name);
985 static int do_mdio_entry(const char *filename,
986 void *symval, char *alias)
989 DEF_FIELD(symval, mdio_device_id, phy_id);
990 DEF_FIELD(symval, mdio_device_id, phy_id_mask);
992 alias += sprintf(alias, MDIO_MODULE_PREFIX);
994 for (i = 0; i < 32; i++) {
995 if (!((phy_id_mask >> (31-i)) & 1))
997 else if ((phy_id >> (31-i)) & 1)
1003 /* Terminate the string */
1009 /* Looks like: zorro:iN. */
1010 static int do_zorro_entry(const char *filename, void *symval,
1013 DEF_FIELD(symval, zorro_device_id, id);
1014 strcpy(alias, "zorro:");
1015 ADD(alias, "i", id != ZORRO_WILDCARD, id);
1019 /* looks like: "pnp:dD" */
1020 static int do_isapnp_entry(const char *filename,
1021 void *symval, char *alias)
1023 DEF_FIELD(symval, isapnp_device_id, vendor);
1024 DEF_FIELD(symval, isapnp_device_id, function);
1025 sprintf(alias, "pnp:d%c%c%c%x%x%x%x*",
1026 'A' + ((vendor >> 2) & 0x3f) - 1,
1027 'A' + (((vendor & 3) << 3) | ((vendor >> 13) & 7)) - 1,
1028 'A' + ((vendor >> 8) & 0x1f) - 1,
1029 (function >> 4) & 0x0f, function & 0x0f,
1030 (function >> 12) & 0x0f, (function >> 8) & 0x0f);
1034 /* Looks like: "ipack:fNvNdN". */
1035 static int do_ipack_entry(const char *filename,
1036 void *symval, char *alias)
1038 DEF_FIELD(symval, ipack_device_id, format);
1039 DEF_FIELD(symval, ipack_device_id, vendor);
1040 DEF_FIELD(symval, ipack_device_id, device);
1041 strcpy(alias, "ipack:");
1042 ADD(alias, "f", format != IPACK_ANY_FORMAT, format);
1043 ADD(alias, "v", vendor != IPACK_ANY_ID, vendor);
1044 ADD(alias, "d", device != IPACK_ANY_ID, device);
1045 add_wildcard(alias);
1050 * Append a match expression for a single masked hex digit.
1051 * outp points to a pointer to the character at which to append.
1052 * *outp is updated on return to point just after the appended text,
1053 * to facilitate further appending.
1055 static void append_nibble_mask(char **outp,
1056 unsigned int nibble, unsigned int mask)
1067 p += sprintf(p, "%X", nibble);
1072 * Dumbly emit a match pattern for all possible matching
1073 * digits. This could be improved in some cases using ranges,
1074 * but it has the advantage of being trivially correct, and is
1078 for (i = 0; i < 0x10; i++)
1079 if ((i & mask) == nibble)
1080 p += sprintf(p, "%X", i);
1084 /* Ensure that the string remains NUL-terminated: */
1087 /* Advance the caller's end-of-string pointer: */
1092 * looks like: "amba:dN"
1094 * N is exactly 8 digits, where each is an upper-case hex digit, or
1095 * a ? or [] pattern matching exactly one digit.
1097 static int do_amba_entry(const char *filename,
1098 void *symval, char *alias)
1102 DEF_FIELD(symval, amba_id, id);
1103 DEF_FIELD(symval, amba_id, mask);
1105 if ((id & mask) != id)
1106 fatal("%s: Masked-off bit(s) of AMBA device ID are non-zero: "
1107 "id=0x%08X, mask=0x%08X. Please fix this driver.\n",
1108 filename, id, mask);
1110 p += sprintf(alias, "amba:d");
1111 for (digit = 0; digit < 8; digit++)
1112 append_nibble_mask(&p,
1113 (id >> (4 * (7 - digit))) & 0xf,
1114 (mask >> (4 * (7 - digit))) & 0xf);
1120 * looks like: "mipscdmm:tN"
1122 * N is exactly 2 digits, where each is an upper-case hex digit, or
1123 * a ? or [] pattern matching exactly one digit.
1125 static int do_mips_cdmm_entry(const char *filename,
1126 void *symval, char *alias)
1128 DEF_FIELD(symval, mips_cdmm_device_id, type);
1130 sprintf(alias, "mipscdmm:t%02X*", type);
1134 /* LOOKS like cpu:type:x86,venVVVVfamFFFFmodMMMM:feature:*,FEAT,*
1135 * All fields are numbers. It would be nicer to use strings for vendor
1136 * and feature, but getting those out of the build system here is too
1140 static int do_x86cpu_entry(const char *filename, void *symval,
1143 DEF_FIELD(symval, x86_cpu_id, feature);
1144 DEF_FIELD(symval, x86_cpu_id, family);
1145 DEF_FIELD(symval, x86_cpu_id, model);
1146 DEF_FIELD(symval, x86_cpu_id, vendor);
1148 strcpy(alias, "cpu:type:x86,");
1149 ADD(alias, "ven", vendor != X86_VENDOR_ANY, vendor);
1150 ADD(alias, "fam", family != X86_FAMILY_ANY, family);
1151 ADD(alias, "mod", model != X86_MODEL_ANY, model);
1152 strcat(alias, ":feature:*");
1153 if (feature != X86_FEATURE_ANY)
1154 sprintf(alias + strlen(alias), "%04X*", feature);
1158 /* LOOKS like cpu:type:*:feature:*FEAT* */
1159 static int do_cpu_entry(const char *filename, void *symval, char *alias)
1161 DEF_FIELD(symval, cpu_feature, feature);
1163 sprintf(alias, "cpu:type:*:feature:*%04X*", feature);
1167 /* Looks like: mei:S:uuid:N:* */
1168 static int do_mei_entry(const char *filename, void *symval,
1171 DEF_FIELD_ADDR(symval, mei_cl_device_id, name);
1172 DEF_FIELD_ADDR(symval, mei_cl_device_id, uuid);
1173 DEF_FIELD(symval, mei_cl_device_id, version);
1175 sprintf(alias, MEI_CL_MODULE_PREFIX);
1176 sprintf(alias + strlen(alias), "%s:", (*name)[0] ? *name : "*");
1177 add_uuid(alias, *uuid);
1178 ADD(alias, ":", version != MEI_CL_VERSION_ANY, version);
1180 strcat(alias, ":*");
1185 /* Looks like: rapidio:vNdNavNadN */
1186 static int do_rio_entry(const char *filename,
1187 void *symval, char *alias)
1189 DEF_FIELD(symval, rio_device_id, did);
1190 DEF_FIELD(symval, rio_device_id, vid);
1191 DEF_FIELD(symval, rio_device_id, asm_did);
1192 DEF_FIELD(symval, rio_device_id, asm_vid);
1194 strcpy(alias, "rapidio:");
1195 ADD(alias, "v", vid != RIO_ANY_ID, vid);
1196 ADD(alias, "d", did != RIO_ANY_ID, did);
1197 ADD(alias, "av", asm_vid != RIO_ANY_ID, asm_vid);
1198 ADD(alias, "ad", asm_did != RIO_ANY_ID, asm_did);
1200 add_wildcard(alias);
1204 /* Looks like: ulpi:vNpN */
1205 static int do_ulpi_entry(const char *filename, void *symval,
1208 DEF_FIELD(symval, ulpi_device_id, vendor);
1209 DEF_FIELD(symval, ulpi_device_id, product);
1211 sprintf(alias, "ulpi:v%04xp%04x", vendor, product);
1216 /* Looks like: hdaudio:vNrNaN */
1217 static int do_hda_entry(const char *filename, void *symval, char *alias)
1219 DEF_FIELD(symval, hda_device_id, vendor_id);
1220 DEF_FIELD(symval, hda_device_id, rev_id);
1221 DEF_FIELD(symval, hda_device_id, api_version);
1223 strcpy(alias, "hdaudio:");
1224 ADD(alias, "v", vendor_id != 0, vendor_id);
1225 ADD(alias, "r", rev_id != 0, rev_id);
1226 ADD(alias, "a", api_version != 0, api_version);
1228 add_wildcard(alias);
1232 /* Looks like: sdw:mNpN */
1233 static int do_sdw_entry(const char *filename, void *symval, char *alias)
1235 DEF_FIELD(symval, sdw_device_id, mfg_id);
1236 DEF_FIELD(symval, sdw_device_id, part_id);
1238 strcpy(alias, "sdw:");
1239 ADD(alias, "m", mfg_id != 0, mfg_id);
1240 ADD(alias, "p", part_id != 0, part_id);
1242 add_wildcard(alias);
1246 /* Looks like: fsl-mc:vNdN */
1247 static int do_fsl_mc_entry(const char *filename, void *symval,
1250 DEF_FIELD(symval, fsl_mc_device_id, vendor);
1251 DEF_FIELD_ADDR(symval, fsl_mc_device_id, obj_type);
1253 sprintf(alias, "fsl-mc:v%08Xd%s", vendor, *obj_type);
1257 /* Looks like: tbsvc:kSpNvNrN */
1258 static int do_tbsvc_entry(const char *filename, void *symval, char *alias)
1260 DEF_FIELD(symval, tb_service_id, match_flags);
1261 DEF_FIELD_ADDR(symval, tb_service_id, protocol_key);
1262 DEF_FIELD(symval, tb_service_id, protocol_id);
1263 DEF_FIELD(symval, tb_service_id, protocol_version);
1264 DEF_FIELD(symval, tb_service_id, protocol_revision);
1266 strcpy(alias, "tbsvc:");
1267 if (match_flags & TBSVC_MATCH_PROTOCOL_KEY)
1268 sprintf(alias + strlen(alias), "k%s", *protocol_key);
1270 strcat(alias + strlen(alias), "k*");
1271 ADD(alias, "p", match_flags & TBSVC_MATCH_PROTOCOL_ID, protocol_id);
1272 ADD(alias, "v", match_flags & TBSVC_MATCH_PROTOCOL_VERSION,
1274 ADD(alias, "r", match_flags & TBSVC_MATCH_PROTOCOL_REVISION,
1277 add_wildcard(alias);
1281 /* Looks like: typec:idNmN */
1282 static int do_typec_entry(const char *filename, void *symval, char *alias)
1284 DEF_FIELD(symval, typec_device_id, svid);
1285 DEF_FIELD(symval, typec_device_id, mode);
1287 sprintf(alias, "typec:id%04X", svid);
1288 ADD(alias, "m", mode != TYPEC_ANY_MODE, mode);
1293 /* Looks like: tee:uuid */
1294 static int do_tee_entry(const char *filename, void *symval, char *alias)
1296 DEF_FIELD(symval, tee_client_device_id, uuid);
1298 sprintf(alias, "tee:%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
1299 uuid.b[0], uuid.b[1], uuid.b[2], uuid.b[3], uuid.b[4],
1300 uuid.b[5], uuid.b[6], uuid.b[7], uuid.b[8], uuid.b[9],
1301 uuid.b[10], uuid.b[11], uuid.b[12], uuid.b[13], uuid.b[14],
1304 add_wildcard(alias);
1308 /* Does namelen bytes of name exactly match the symbol? */
1309 static bool sym_is(const char *name, unsigned namelen, const char *symbol)
1311 if (namelen != strlen(symbol))
1314 return memcmp(name, symbol, namelen) == 0;
1317 static void do_table(void *symval, unsigned long size,
1318 unsigned long id_size,
1319 const char *device_id,
1320 int (*do_entry)(const char *filename, void *symval, char *alias),
1326 device_id_check(mod->name, device_id, size, id_size, symval);
1327 /* Leave last one: it's the terminator. */
1330 for (i = 0; i < size; i += id_size) {
1331 if (do_entry(mod->name, symval+i, alias)) {
1332 buf_printf(&mod->dev_table_buf,
1333 "MODULE_ALIAS(\"%s\");\n", alias);
1338 static const struct devtable devtable[] = {
1339 {"hid", SIZE_hid_device_id, do_hid_entry},
1340 {"ieee1394", SIZE_ieee1394_device_id, do_ieee1394_entry},
1341 {"pci", SIZE_pci_device_id, do_pci_entry},
1342 {"ccw", SIZE_ccw_device_id, do_ccw_entry},
1343 {"ap", SIZE_ap_device_id, do_ap_entry},
1344 {"css", SIZE_css_device_id, do_css_entry},
1345 {"serio", SIZE_serio_device_id, do_serio_entry},
1346 {"acpi", SIZE_acpi_device_id, do_acpi_entry},
1347 {"pcmcia", SIZE_pcmcia_device_id, do_pcmcia_entry},
1348 {"vio", SIZE_vio_device_id, do_vio_entry},
1349 {"input", SIZE_input_device_id, do_input_entry},
1350 {"eisa", SIZE_eisa_device_id, do_eisa_entry},
1351 {"parisc", SIZE_parisc_device_id, do_parisc_entry},
1352 {"sdio", SIZE_sdio_device_id, do_sdio_entry},
1353 {"ssb", SIZE_ssb_device_id, do_ssb_entry},
1354 {"bcma", SIZE_bcma_device_id, do_bcma_entry},
1355 {"virtio", SIZE_virtio_device_id, do_virtio_entry},
1356 {"vmbus", SIZE_hv_vmbus_device_id, do_vmbus_entry},
1357 {"rpmsg", SIZE_rpmsg_device_id, do_rpmsg_entry},
1358 {"i2c", SIZE_i2c_device_id, do_i2c_entry},
1359 {"spi", SIZE_spi_device_id, do_spi_entry},
1360 {"dmi", SIZE_dmi_system_id, do_dmi_entry},
1361 {"platform", SIZE_platform_device_id, do_platform_entry},
1362 {"mdio", SIZE_mdio_device_id, do_mdio_entry},
1363 {"zorro", SIZE_zorro_device_id, do_zorro_entry},
1364 {"isapnp", SIZE_isapnp_device_id, do_isapnp_entry},
1365 {"ipack", SIZE_ipack_device_id, do_ipack_entry},
1366 {"amba", SIZE_amba_id, do_amba_entry},
1367 {"mipscdmm", SIZE_mips_cdmm_device_id, do_mips_cdmm_entry},
1368 {"x86cpu", SIZE_x86_cpu_id, do_x86cpu_entry},
1369 {"cpu", SIZE_cpu_feature, do_cpu_entry},
1370 {"mei", SIZE_mei_cl_device_id, do_mei_entry},
1371 {"rapidio", SIZE_rio_device_id, do_rio_entry},
1372 {"ulpi", SIZE_ulpi_device_id, do_ulpi_entry},
1373 {"hdaudio", SIZE_hda_device_id, do_hda_entry},
1374 {"sdw", SIZE_sdw_device_id, do_sdw_entry},
1375 {"fslmc", SIZE_fsl_mc_device_id, do_fsl_mc_entry},
1376 {"tbsvc", SIZE_tb_service_id, do_tbsvc_entry},
1377 {"typec", SIZE_typec_device_id, do_typec_entry},
1378 {"tee", SIZE_tee_client_device_id, do_tee_entry},
1381 /* Create MODULE_ALIAS() statements.
1382 * At this time, we cannot write the actual output C source yet,
1383 * so we write into the mod->dev_table_buf buffer. */
1384 void handle_moddevtable(struct module *mod, struct elf_info *info,
1385 Elf_Sym *sym, const char *symname)
1389 const char *name, *identifier;
1390 unsigned int namelen;
1392 /* We're looking for a section relative symbol */
1393 if (!sym->st_shndx || get_secindex(info, sym) >= info->num_sections)
1396 /* We're looking for an object */
1397 if (ELF_ST_TYPE(sym->st_info) != STT_OBJECT)
1400 /* All our symbols are of form __mod_<name>__<identifier>_device_table. */
1401 if (strncmp(symname, "__mod_", strlen("__mod_")))
1403 name = symname + strlen("__mod_");
1404 namelen = strlen(name);
1405 if (namelen < strlen("_device_table"))
1407 if (strcmp(name + namelen - strlen("_device_table"), "_device_table"))
1409 identifier = strstr(name, "__");
1412 namelen = identifier - name;
1414 /* Handle all-NULL symbols allocated into .bss */
1415 if (info->sechdrs[get_secindex(info, sym)].sh_type & SHT_NOBITS) {
1416 zeros = calloc(1, sym->st_size);
1419 symval = (void *)info->hdr
1420 + info->sechdrs[get_secindex(info, sym)].sh_offset
1424 /* First handle the "special" cases */
1425 if (sym_is(name, namelen, "usb"))
1426 do_usb_table(symval, sym->st_size, mod);
1427 if (sym_is(name, namelen, "of"))
1428 do_of_table(symval, sym->st_size, mod);
1429 else if (sym_is(name, namelen, "pnp"))
1430 do_pnp_device_entry(symval, sym->st_size, mod);
1431 else if (sym_is(name, namelen, "pnp_card"))
1432 do_pnp_card_entries(symval, sym->st_size, mod);
1436 for (i = 0; i < ARRAY_SIZE(devtable); i++) {
1437 const struct devtable *p = &devtable[i];
1439 if (sym_is(name, namelen, p->device_id)) {
1440 do_table(symval, sym->st_size, p->id_size,
1441 p->device_id, p->do_entry, mod);
1449 /* Now add out buffered information to the generated C source */
1450 void add_moddevtable(struct buffer *buf, struct module *mod)
1452 buf_printf(buf, "\n");
1453 buf_write(buf, mod->dev_table_buf.p, mod->dev_table_buf.pos);
1454 free(mod->dev_table_buf.p);