projects / linux-2.6-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
[linux-2.6-block.git] / scripts / mod / file2alias.c
CommitLineData
1da177e4
LT		 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;
1d8f430c 19#define BITS_PER_LONG 32
1da177e4
LT		 20#else
21typedef Elf64_Addr kernel_ulong_t;
1d8f430c 22#define BITS_PER_LONG 64
1da177e4
LT		 23#endif
24#ifdef __sun__
25#include <inttypes.h>
26#else
27#include <stdint.h>
28#endif
29
5e655772
JM		 30#include <ctype.h>
31
1da177e4
LT		 32typedef uint32_t __u32;
33typedef uint16_t __u16;
34typedef unsigned char __u8;
35
36/* Big exception to the "don't include kernel headers into userspace, which
62070fa4 37 * even potentially has different endianness and word sizes, since
1da177e4
LT		 38 * we handle those differences explicitly below */
39#include "../../include/linux/mod_devicetable.h"
40
41#define ADD(str, sep, cond, field) \
42do { \
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
fb33d816
SR		 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 **/
59static 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
b19dcd93
RK		 71/* USB is special because the bcdDevice can be matched against a numeric range */
72/* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipN" */
73static 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)
1da177e4 77{
b19dcd93 78 char alias[500];
1da177e4
LT		 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);
b19dcd93
RK		 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
1da177e4
LT		 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);
b19dcd93
RK		 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
121static 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
165static 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
fb33d816
SR		 171 device_id_size_check(mod->name, "usb", size, id_size);
172
b19dcd93
RK		 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);
1da177e4
LT		 178}
179
180/* Looks like: ieee1394:venNmoNspNverN */
181static 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. */
204static 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)) {
cb80514d
SR		 234 warn("Can't handle masks in %s:%04X\n",
235 filename, id->class_mask);
1da177e4
LT		 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
62070fa4 245/* looks like: "ccw:tNmNdtNdmN" */
1da177e4
LT		 246static 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);
de1d9c03 262 ADD(alias, "dm", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_MODEL,
1da177e4
LT		 263 id->dev_model);
264 return 1;
265}
266
1534c382
MS		 267/* looks like: "ap:tN" */
268static 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
1da177e4
LT		 275/* Looks like: "serio:tyNprNidNexN" */
276static 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
29b71a1c
TR		 293/* looks like: "acpi:ACPI0003 or acpi:PNP0C0B" or "acpi:LNXVIDEO" */
294static 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
1da177e4
LT		 301/* looks like: "pnp:dD" */
302static 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..." */
310static 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
90829cfe
DB		 324/* Looks like: pcmcia:mNcNfNfnNpfnNvaNvbNvcNvdN. */
325static int do_pcmcia_entry(const char *filename,
326 struct pcmcia_device_id *id, char *alias)
327{
328 unsigned int i;
329
4fb7edce 330 id->match_flags = TO_NATIVE(id->match_flags);
90829cfe
DB		 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);
4fb7edce 336
90829cfe
DB		 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
5e655772
JM		 362static int do_of_entry (const char *filename, struct of_device_id *of, char *alias)
363{
d1ab4235 364 int len;
5e655772 365 char *tmp;
d1ab4235 366 len = sprintf (alias, "of:N%sT%s",
5e655772 367 of->name[0] ? of->name : "*",
d1ab4235
SM		 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);
5e655772
JM		 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
fb120da6
SR		 383static 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
a9d1b24d
GKH		 399static int do_i2c_entry(const char *filename, struct i2c_device_id *i2c, char *alias)
400{
401 strcpy(alias, "i2c:");
402 ADD(alias, "id", 1, i2c->id);
403 return 1;
404}
405
1d8f430c
RR		 406#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
407
408static void do_input(char *alias,
409 kernel_ulong_t *arr, unsigned int min, unsigned int max)
410{
411 unsigned int i;
ddc5d341
DT		 412
413 for (i = min; i < max; i++)
e0e92632 414 if (arr[i / BITS_PER_LONG] & (1L << (i%BITS_PER_LONG)))
ddc5d341 415 sprintf(alias + strlen(alias), "%X,*", i);
1d8f430c
RR		 416}
417
418/* input:b0v0p0e0-eXkXrXaXmXlXsXfXwX where X is comma-separated %02X. */
419static int do_input_entry(const char *filename, struct input_device_id *id,
420 char *alias)
421{
422 sprintf(alias, "input:");
423
ddc5d341
DT		 424 ADD(alias, "b", id->flags & INPUT_DEVICE_ID_MATCH_BUS, id->bustype);
425 ADD(alias, "v", id->flags & INPUT_DEVICE_ID_MATCH_VENDOR, id->vendor);
426 ADD(alias, "p", id->flags & INPUT_DEVICE_ID_MATCH_PRODUCT, id->product);
427 ADD(alias, "e", id->flags & INPUT_DEVICE_ID_MATCH_VERSION, id->version);
1d8f430c
RR		 428
429 sprintf(alias + strlen(alias), "-e*");
ddc5d341 430 if (id->flags & INPUT_DEVICE_ID_MATCH_EVBIT)
dc24f0e7 431 do_input(alias, id->evbit, 0, INPUT_DEVICE_ID_EV_MAX);
1d8f430c 432 sprintf(alias + strlen(alias), "k*");
ddc5d341 433 if (id->flags & INPUT_DEVICE_ID_MATCH_KEYBIT)
dc24f0e7
SR		 434 do_input(alias, id->keybit,
435 INPUT_DEVICE_ID_KEY_MIN_INTERESTING,
436 INPUT_DEVICE_ID_KEY_MAX);
1d8f430c 437 sprintf(alias + strlen(alias), "r*");
ddc5d341 438 if (id->flags & INPUT_DEVICE_ID_MATCH_RELBIT)
dc24f0e7 439 do_input(alias, id->relbit, 0, INPUT_DEVICE_ID_REL_MAX);
1d8f430c 440 sprintf(alias + strlen(alias), "a*");
ddc5d341 441 if (id->flags & INPUT_DEVICE_ID_MATCH_ABSBIT)
dc24f0e7 442 do_input(alias, id->absbit, 0, INPUT_DEVICE_ID_ABS_MAX);
1d8f430c 443 sprintf(alias + strlen(alias), "m*");
ddc5d341 444 if (id->flags & INPUT_DEVICE_ID_MATCH_MSCIT)
dc24f0e7 445 do_input(alias, id->mscbit, 0, INPUT_DEVICE_ID_MSC_MAX);
1d8f430c 446 sprintf(alias + strlen(alias), "l*");
ddc5d341 447 if (id->flags & INPUT_DEVICE_ID_MATCH_LEDBIT)
dc24f0e7 448 do_input(alias, id->ledbit, 0, INPUT_DEVICE_ID_LED_MAX);
1d8f430c 449 sprintf(alias + strlen(alias), "s*");
ddc5d341 450 if (id->flags & INPUT_DEVICE_ID_MATCH_SNDBIT)
dc24f0e7 451 do_input(alias, id->sndbit, 0, INPUT_DEVICE_ID_SND_MAX);
1d8f430c 452 sprintf(alias + strlen(alias), "f*");
ddc5d341 453 if (id->flags & INPUT_DEVICE_ID_MATCH_FFBIT)
dc24f0e7 454 do_input(alias, id->ffbit, 0, INPUT_DEVICE_ID_FF_MAX);
1d8f430c 455 sprintf(alias + strlen(alias), "w*");
ddc5d341 456 if (id->flags & INPUT_DEVICE_ID_MATCH_SWBIT)
dc24f0e7 457 do_input(alias, id->swbit, 0, INPUT_DEVICE_ID_SW_MAX);
1d8f430c
RR		 458 return 1;
459}
460
07563c71
MT		 461static int do_eisa_entry(const char *filename, struct eisa_device_id *eisa,
462 char *alias)
463{
464 if (eisa->sig[0])
465 sprintf(alias, EISA_DEVICE_MODALIAS_FMT "*", eisa->sig);
466 return 1;
467}
468
f3cf2673
KM		 469/* Looks like: parisc:tNhvNrevNsvN */
470static int do_parisc_entry(const char *filename, struct parisc_device_id *id,
471 char *alias)
472{
473 id->hw_type = TO_NATIVE(id->hw_type);
474 id->hversion = TO_NATIVE(id->hversion);
475 id->hversion_rev = TO_NATIVE(id->hversion_rev);
476 id->sversion = TO_NATIVE(id->sversion);
477
478 strcpy(alias, "parisc:");
f354ef8a
KM		 479 ADD(alias, "t", id->hw_type != PA_HWTYPE_ANY_ID, id->hw_type);
480 ADD(alias, "hv", id->hversion != PA_HVERSION_ANY_ID, id->hversion);
481 ADD(alias, "rev", id->hversion_rev != PA_HVERSION_REV_ANY_ID, id->hversion_rev);
482 ADD(alias, "sv", id->sversion != PA_SVERSION_ANY_ID, id->sversion);
f3cf2673
KM		 483
484 return 1;
485}
486
d59b66c7
PO		 487/* Looks like: sdio:cNvNdN. */
488static int do_sdio_entry(const char *filename,
489 struct sdio_device_id *id, char *alias)
490{
491 id->class = TO_NATIVE(id->class);
492 id->vendor = TO_NATIVE(id->vendor);
493 id->device = TO_NATIVE(id->device);
494
495 strcpy(alias, "sdio:");
496 ADD(alias, "c", id->class != (__u8)SDIO_ANY_ID, id->class);
497 ADD(alias, "v", id->vendor != (__u16)SDIO_ANY_ID, id->vendor);
498 ADD(alias, "d", id->device != (__u16)SDIO_ANY_ID, id->device);
499
500 return 1;
501}
502
1da177e4
LT		 503/* Ignore any prefix, eg. v850 prepends _ */
504static inline int sym_is(const char *symbol, const char *name)
505{
506 const char *match;
507
508 match = strstr(symbol, name);
509 if (!match)
510 return 0;
511 return match[strlen(symbol)] == '\0';
512}
513
514static void do_table(void *symval, unsigned long size,
515 unsigned long id_size,
fb33d816 516 const char *device_id,
1da177e4
LT		 517 void *function,
518 struct module *mod)
519{
520 unsigned int i;
521 char alias[500];
522 int (*do_entry)(const char *, void *entry, char *alias) = function;
523
fb33d816 524 device_id_size_check(mod->name, device_id, size, id_size);
1da177e4
LT		 525 /* Leave last one: it's the terminator. */
526 size -= id_size;
527
528 for (i = 0; i < size; i += id_size) {
529 if (do_entry(mod->name, symval+i, alias)) {
530 /* Always end in a wildcard, for future extension */
531 if (alias[strlen(alias)-1] != '*')
532 strcat(alias, "*");
533 buf_printf(&mod->dev_table_buf,
534 "MODULE_ALIAS(\"%s\");\n", alias);
535 }
536 }
537}
538
539/* Create MODULE_ALIAS() statements.
540 * At this time, we cannot write the actual output C source yet,
541 * so we write into the mod->dev_table_buf buffer. */
542void handle_moddevtable(struct module *mod, struct elf_info *info,
543 Elf_Sym *sym, const char *symname)
544{
545 void *symval;
546
547 /* We're looking for a section relative symbol */
548 if (!sym->st_shndx || sym->st_shndx >= info->hdr->e_shnum)
549 return;
550
551 symval = (void *)info->hdr
552 + info->sechdrs[sym->st_shndx].sh_offset
553 + sym->st_value;
554
555 if (sym_is(symname, "__mod_pci_device_table"))
fb33d816
SR		 556 do_table(symval, sym->st_size,
557 sizeof(struct pci_device_id), "pci",
1da177e4
LT		 558 do_pci_entry, mod);
559 else if (sym_is(symname, "__mod_usb_device_table"))
b19dcd93
RK		 560 /* special case to handle bcdDevice ranges */
561 do_usb_table(symval, sym->st_size, mod);
1da177e4 562 else if (sym_is(symname, "__mod_ieee1394_device_table"))
fb33d816
SR		 563 do_table(symval, sym->st_size,
564 sizeof(struct ieee1394_device_id), "ieee1394",
1da177e4
LT		 565 do_ieee1394_entry, mod);
566 else if (sym_is(symname, "__mod_ccw_device_table"))
fb33d816
SR		 567 do_table(symval, sym->st_size,
568 sizeof(struct ccw_device_id), "ccw",
1da177e4 569 do_ccw_entry, mod);
1534c382
MS		 570 else if (sym_is(symname, "__mod_ap_device_table"))
571 do_table(symval, sym->st_size,
572 sizeof(struct ap_device_id), "ap",
573 do_ap_entry, mod);
1da177e4 574 else if (sym_is(symname, "__mod_serio_device_table"))
fb33d816
SR		 575 do_table(symval, sym->st_size,
576 sizeof(struct serio_device_id), "serio",
1da177e4 577 do_serio_entry, mod);
29b71a1c
TR		 578 else if (sym_is(symname, "__mod_acpi_device_table"))
579 do_table(symval, sym->st_size,
580 sizeof(struct acpi_device_id), "acpi",
581 do_acpi_entry, mod);
1da177e4 582 else if (sym_is(symname, "__mod_pnp_device_table"))
fb33d816
SR		 583 do_table(symval, sym->st_size,
584 sizeof(struct pnp_device_id), "pnp",
1da177e4
LT		 585 do_pnp_entry, mod);
586 else if (sym_is(symname, "__mod_pnp_card_device_table"))
fb33d816
SR		 587 do_table(symval, sym->st_size,
588 sizeof(struct pnp_card_device_id), "pnp_card",
1da177e4 589 do_pnp_card_entry, mod);
90829cfe 590 else if (sym_is(symname, "__mod_pcmcia_device_table"))
fb33d816
SR		 591 do_table(symval, sym->st_size,
592 sizeof(struct pcmcia_device_id), "pcmcia",
90829cfe 593 do_pcmcia_entry, mod);
5e655772 594 else if (sym_is(symname, "__mod_of_device_table"))
fb33d816
SR		 595 do_table(symval, sym->st_size,
596 sizeof(struct of_device_id), "of",
5e655772 597 do_of_entry, mod);
fb120da6 598 else if (sym_is(symname, "__mod_vio_device_table"))
fb33d816
SR		 599 do_table(symval, sym->st_size,
600 sizeof(struct vio_device_id), "vio",
fb120da6 601 do_vio_entry, mod);
a9d1b24d 602 else if (sym_is(symname, "__mod_i2c_device_table"))
fb33d816
SR		 603 do_table(symval, sym->st_size,
604 sizeof(struct i2c_device_id), "i2c",
a9d1b24d 605 do_i2c_entry, mod);
1d8f430c 606 else if (sym_is(symname, "__mod_input_device_table"))
fb33d816
SR		 607 do_table(symval, sym->st_size,
608 sizeof(struct input_device_id), "input",
1d8f430c 609 do_input_entry, mod);
07563c71
MT		 610 else if (sym_is(symname, "__mod_eisa_device_table"))
611 do_table(symval, sym->st_size,
612 sizeof(struct eisa_device_id), "eisa",
613 do_eisa_entry, mod);
f3cf2673
KM		 614 else if (sym_is(symname, "__mod_parisc_device_table"))
615 do_table(symval, sym->st_size,
616 sizeof(struct parisc_device_id), "parisc",
617 do_parisc_entry, mod);
d59b66c7
PO		 618 else if (sym_is(symname, "__mod_sdio_device_table"))
619 do_table(symval, sym->st_size,
620 sizeof(struct sdio_device_id), "sdio",
621 do_sdio_entry, mod);
1da177e4
LT		 622}
623
624/* Now add out buffered information to the generated C source */
625void add_moddevtable(struct buffer *buf, struct module *mod)
626{
627 buf_printf(buf, "\n");
628 buf_write(buf, mod->dev_table_buf.p, mod->dev_table_buf.pos);
629 free(mod->dev_table_buf.p);
630}
Linux 6.x block layer and io_uring tree(s)