Commit | Line | Data |
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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 | |
18 | typedef Elf32_Addr kernel_ulong_t; | |
1d8f430c | 19 | #define BITS_PER_LONG 32 |
1da177e4 LT |
20 | #else |
21 | typedef 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 |
32 | typedef uint32_t __u32; |
33 | typedef uint16_t __u16; | |
34 | typedef unsigned char __u8; | |
35 | ||
36 | /* Big exception to the "don't include kernel headers into userspace, which | |
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" | |
1d8f430c | 40 | #include "../../include/linux/input.h" |
1da177e4 LT |
41 | |
42 | #define ADD(str, sep, cond, field) \ | |
43 | do { \ | |
44 | strcat(str, sep); \ | |
45 | if (cond) \ | |
46 | sprintf(str + strlen(str), \ | |
47 | sizeof(field) == 1 ? "%02X" : \ | |
48 | sizeof(field) == 2 ? "%04X" : \ | |
49 | sizeof(field) == 4 ? "%08X" : "", \ | |
50 | field); \ | |
51 | else \ | |
52 | sprintf(str + strlen(str), "*"); \ | |
53 | } while(0) | |
54 | ||
fb33d816 SR |
55 | /** |
56 | * Check that sizeof(device_id type) are consistent with size of section | |
57 | * in .o file. If in-consistent then userspace and kernel does not agree | |
58 | * on actual size which is a bug. | |
59 | **/ | |
60 | static void device_id_size_check(const char *modname, const char *device_id, | |
61 | unsigned long size, unsigned long id_size) | |
62 | { | |
63 | if (size % id_size || size < id_size) { | |
64 | fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo " | |
65 | "of the size of section __mod_%s_device_table=%lu.\n" | |
66 | "Fix definition of struct %s_device_id " | |
67 | "in mod_devicetable.h\n", | |
68 | modname, device_id, id_size, device_id, size, device_id); | |
69 | } | |
70 | } | |
71 | ||
b19dcd93 RK |
72 | /* USB is special because the bcdDevice can be matched against a numeric range */ |
73 | /* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipN" */ | |
74 | static void do_usb_entry(struct usb_device_id *id, | |
75 | unsigned int bcdDevice_initial, int bcdDevice_initial_digits, | |
76 | unsigned char range_lo, unsigned char range_hi, | |
77 | struct module *mod) | |
1da177e4 | 78 | { |
b19dcd93 | 79 | char alias[500]; |
1da177e4 LT |
80 | strcpy(alias, "usb:"); |
81 | ADD(alias, "v", id->match_flags&USB_DEVICE_ID_MATCH_VENDOR, | |
82 | id->idVendor); | |
83 | ADD(alias, "p", id->match_flags&USB_DEVICE_ID_MATCH_PRODUCT, | |
84 | id->idProduct); | |
b19dcd93 RK |
85 | |
86 | strcat(alias, "d"); | |
87 | if (bcdDevice_initial_digits) | |
88 | sprintf(alias + strlen(alias), "%0*X", | |
89 | bcdDevice_initial_digits, bcdDevice_initial); | |
90 | if (range_lo == range_hi) | |
91 | sprintf(alias + strlen(alias), "%u", range_lo); | |
92 | else if (range_lo > 0 || range_hi < 9) | |
93 | sprintf(alias + strlen(alias), "[%u-%u]", range_lo, range_hi); | |
94 | if (bcdDevice_initial_digits < (sizeof(id->bcdDevice_lo) * 2 - 1)) | |
95 | strcat(alias, "*"); | |
96 | ||
1da177e4 LT |
97 | ADD(alias, "dc", id->match_flags&USB_DEVICE_ID_MATCH_DEV_CLASS, |
98 | id->bDeviceClass); | |
99 | ADD(alias, "dsc", | |
100 | id->match_flags&USB_DEVICE_ID_MATCH_DEV_SUBCLASS, | |
101 | id->bDeviceSubClass); | |
102 | ADD(alias, "dp", | |
103 | id->match_flags&USB_DEVICE_ID_MATCH_DEV_PROTOCOL, | |
104 | id->bDeviceProtocol); | |
105 | ADD(alias, "ic", | |
106 | id->match_flags&USB_DEVICE_ID_MATCH_INT_CLASS, | |
107 | id->bInterfaceClass); | |
108 | ADD(alias, "isc", | |
109 | id->match_flags&USB_DEVICE_ID_MATCH_INT_SUBCLASS, | |
110 | id->bInterfaceSubClass); | |
111 | ADD(alias, "ip", | |
112 | id->match_flags&USB_DEVICE_ID_MATCH_INT_PROTOCOL, | |
113 | id->bInterfaceProtocol); | |
b19dcd93 RK |
114 | |
115 | /* Always end in a wildcard, for future extension */ | |
116 | if (alias[strlen(alias)-1] != '*') | |
117 | strcat(alias, "*"); | |
118 | buf_printf(&mod->dev_table_buf, | |
119 | "MODULE_ALIAS(\"%s\");\n", alias); | |
120 | } | |
121 | ||
122 | static void do_usb_entry_multi(struct usb_device_id *id, struct module *mod) | |
123 | { | |
124 | unsigned int devlo, devhi; | |
125 | unsigned char chi, clo; | |
126 | int ndigits; | |
127 | ||
128 | id->match_flags = TO_NATIVE(id->match_flags); | |
129 | id->idVendor = TO_NATIVE(id->idVendor); | |
130 | id->idProduct = TO_NATIVE(id->idProduct); | |
131 | ||
132 | devlo = id->match_flags & USB_DEVICE_ID_MATCH_DEV_LO ? | |
133 | TO_NATIVE(id->bcdDevice_lo) : 0x0U; | |
134 | devhi = id->match_flags & USB_DEVICE_ID_MATCH_DEV_HI ? | |
135 | TO_NATIVE(id->bcdDevice_hi) : ~0x0U; | |
136 | ||
137 | /* | |
138 | * Some modules (visor) have empty slots as placeholder for | |
139 | * run-time specification that results in catch-all alias | |
140 | */ | |
141 | if (!(id->idVendor | id->bDeviceClass | id->bInterfaceClass)) | |
142 | return; | |
143 | ||
144 | /* Convert numeric bcdDevice range into fnmatch-able pattern(s) */ | |
145 | for (ndigits = sizeof(id->bcdDevice_lo) * 2 - 1; devlo <= devhi; ndigits--) { | |
146 | clo = devlo & 0xf; | |
147 | chi = devhi & 0xf; | |
148 | if (chi > 9) /* it's bcd not hex */ | |
149 | chi = 9; | |
150 | devlo >>= 4; | |
151 | devhi >>= 4; | |
152 | ||
153 | if (devlo == devhi || !ndigits) { | |
154 | do_usb_entry(id, devlo, ndigits, clo, chi, mod); | |
155 | break; | |
156 | } | |
157 | ||
158 | if (clo > 0) | |
159 | do_usb_entry(id, devlo++, ndigits, clo, 9, mod); | |
160 | ||
161 | if (chi < 9) | |
162 | do_usb_entry(id, devhi--, ndigits, 0, chi, mod); | |
163 | } | |
164 | } | |
165 | ||
166 | static void do_usb_table(void *symval, unsigned long size, | |
167 | struct module *mod) | |
168 | { | |
169 | unsigned int i; | |
170 | const unsigned long id_size = sizeof(struct usb_device_id); | |
171 | ||
fb33d816 SR |
172 | device_id_size_check(mod->name, "usb", size, id_size); |
173 | ||
b19dcd93 RK |
174 | /* Leave last one: it's the terminator. */ |
175 | size -= id_size; | |
176 | ||
177 | for (i = 0; i < size; i += id_size) | |
178 | do_usb_entry_multi(symval + i, mod); | |
1da177e4 LT |
179 | } |
180 | ||
181 | /* Looks like: ieee1394:venNmoNspNverN */ | |
182 | static int do_ieee1394_entry(const char *filename, | |
183 | struct ieee1394_device_id *id, char *alias) | |
184 | { | |
185 | id->match_flags = TO_NATIVE(id->match_flags); | |
186 | id->vendor_id = TO_NATIVE(id->vendor_id); | |
187 | id->model_id = TO_NATIVE(id->model_id); | |
188 | id->specifier_id = TO_NATIVE(id->specifier_id); | |
189 | id->version = TO_NATIVE(id->version); | |
190 | ||
191 | strcpy(alias, "ieee1394:"); | |
192 | ADD(alias, "ven", id->match_flags & IEEE1394_MATCH_VENDOR_ID, | |
193 | id->vendor_id); | |
194 | ADD(alias, "mo", id->match_flags & IEEE1394_MATCH_MODEL_ID, | |
195 | id->model_id); | |
196 | ADD(alias, "sp", id->match_flags & IEEE1394_MATCH_SPECIFIER_ID, | |
197 | id->specifier_id); | |
198 | ADD(alias, "ver", id->match_flags & IEEE1394_MATCH_VERSION, | |
199 | id->version); | |
200 | ||
201 | return 1; | |
202 | } | |
203 | ||
204 | /* Looks like: pci:vNdNsvNsdNbcNscNiN. */ | |
205 | static int do_pci_entry(const char *filename, | |
206 | struct pci_device_id *id, char *alias) | |
207 | { | |
208 | /* Class field can be divided into these three. */ | |
209 | unsigned char baseclass, subclass, interface, | |
210 | baseclass_mask, subclass_mask, interface_mask; | |
211 | ||
212 | id->vendor = TO_NATIVE(id->vendor); | |
213 | id->device = TO_NATIVE(id->device); | |
214 | id->subvendor = TO_NATIVE(id->subvendor); | |
215 | id->subdevice = TO_NATIVE(id->subdevice); | |
216 | id->class = TO_NATIVE(id->class); | |
217 | id->class_mask = TO_NATIVE(id->class_mask); | |
218 | ||
219 | strcpy(alias, "pci:"); | |
220 | ADD(alias, "v", id->vendor != PCI_ANY_ID, id->vendor); | |
221 | ADD(alias, "d", id->device != PCI_ANY_ID, id->device); | |
222 | ADD(alias, "sv", id->subvendor != PCI_ANY_ID, id->subvendor); | |
223 | ADD(alias, "sd", id->subdevice != PCI_ANY_ID, id->subdevice); | |
224 | ||
225 | baseclass = (id->class) >> 16; | |
226 | baseclass_mask = (id->class_mask) >> 16; | |
227 | subclass = (id->class) >> 8; | |
228 | subclass_mask = (id->class_mask) >> 8; | |
229 | interface = id->class; | |
230 | interface_mask = id->class_mask; | |
231 | ||
232 | if ((baseclass_mask != 0 && baseclass_mask != 0xFF) | |
233 | || (subclass_mask != 0 && subclass_mask != 0xFF) | |
234 | || (interface_mask != 0 && interface_mask != 0xFF)) { | |
cb80514d SR |
235 | warn("Can't handle masks in %s:%04X\n", |
236 | filename, id->class_mask); | |
1da177e4 LT |
237 | return 0; |
238 | } | |
239 | ||
240 | ADD(alias, "bc", baseclass_mask == 0xFF, baseclass); | |
241 | ADD(alias, "sc", subclass_mask == 0xFF, subclass); | |
242 | ADD(alias, "i", interface_mask == 0xFF, interface); | |
243 | return 1; | |
244 | } | |
245 | ||
62070fa4 | 246 | /* looks like: "ccw:tNmNdtNdmN" */ |
1da177e4 LT |
247 | static int do_ccw_entry(const char *filename, |
248 | struct ccw_device_id *id, char *alias) | |
249 | { | |
250 | id->match_flags = TO_NATIVE(id->match_flags); | |
251 | id->cu_type = TO_NATIVE(id->cu_type); | |
252 | id->cu_model = TO_NATIVE(id->cu_model); | |
253 | id->dev_type = TO_NATIVE(id->dev_type); | |
254 | id->dev_model = TO_NATIVE(id->dev_model); | |
255 | ||
256 | strcpy(alias, "ccw:"); | |
257 | ADD(alias, "t", id->match_flags&CCW_DEVICE_ID_MATCH_CU_TYPE, | |
258 | id->cu_type); | |
259 | ADD(alias, "m", id->match_flags&CCW_DEVICE_ID_MATCH_CU_MODEL, | |
260 | id->cu_model); | |
261 | ADD(alias, "dt", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_TYPE, | |
262 | id->dev_type); | |
de1d9c03 | 263 | ADD(alias, "dm", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_MODEL, |
1da177e4 LT |
264 | id->dev_model); |
265 | return 1; | |
266 | } | |
267 | ||
1534c382 MS |
268 | /* looks like: "ap:tN" */ |
269 | static int do_ap_entry(const char *filename, | |
270 | struct ap_device_id *id, char *alias) | |
271 | { | |
272 | sprintf(alias, "ap:t%02X", id->dev_type); | |
273 | return 1; | |
274 | } | |
275 | ||
1da177e4 LT |
276 | /* Looks like: "serio:tyNprNidNexN" */ |
277 | static int do_serio_entry(const char *filename, | |
278 | struct serio_device_id *id, char *alias) | |
279 | { | |
280 | id->type = TO_NATIVE(id->type); | |
281 | id->proto = TO_NATIVE(id->proto); | |
282 | id->id = TO_NATIVE(id->id); | |
283 | id->extra = TO_NATIVE(id->extra); | |
284 | ||
285 | strcpy(alias, "serio:"); | |
286 | ADD(alias, "ty", id->type != SERIO_ANY, id->type); | |
287 | ADD(alias, "pr", id->proto != SERIO_ANY, id->proto); | |
288 | ADD(alias, "id", id->id != SERIO_ANY, id->id); | |
289 | ADD(alias, "ex", id->extra != SERIO_ANY, id->extra); | |
290 | ||
291 | return 1; | |
292 | } | |
293 | ||
294 | /* looks like: "pnp:dD" */ | |
295 | static int do_pnp_entry(const char *filename, | |
296 | struct pnp_device_id *id, char *alias) | |
297 | { | |
298 | sprintf(alias, "pnp:d%s", id->id); | |
299 | return 1; | |
300 | } | |
301 | ||
302 | /* looks like: "pnp:cCdD..." */ | |
303 | static int do_pnp_card_entry(const char *filename, | |
304 | struct pnp_card_device_id *id, char *alias) | |
305 | { | |
306 | int i; | |
307 | ||
308 | sprintf(alias, "pnp:c%s", id->id); | |
309 | for (i = 0; i < PNP_MAX_DEVICES; i++) { | |
310 | if (! *id->devs[i].id) | |
311 | break; | |
312 | sprintf(alias + strlen(alias), "d%s", id->devs[i].id); | |
313 | } | |
314 | return 1; | |
315 | } | |
316 | ||
90829cfe DB |
317 | /* Looks like: pcmcia:mNcNfNfnNpfnNvaNvbNvcNvdN. */ |
318 | static int do_pcmcia_entry(const char *filename, | |
319 | struct pcmcia_device_id *id, char *alias) | |
320 | { | |
321 | unsigned int i; | |
322 | ||
4fb7edce | 323 | id->match_flags = TO_NATIVE(id->match_flags); |
90829cfe DB |
324 | id->manf_id = TO_NATIVE(id->manf_id); |
325 | id->card_id = TO_NATIVE(id->card_id); | |
326 | id->func_id = TO_NATIVE(id->func_id); | |
327 | id->function = TO_NATIVE(id->function); | |
328 | id->device_no = TO_NATIVE(id->device_no); | |
4fb7edce | 329 | |
90829cfe DB |
330 | for (i=0; i<4; i++) { |
331 | id->prod_id_hash[i] = TO_NATIVE(id->prod_id_hash[i]); | |
332 | } | |
333 | ||
334 | strcpy(alias, "pcmcia:"); | |
335 | ADD(alias, "m", id->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID, | |
336 | id->manf_id); | |
337 | ADD(alias, "c", id->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID, | |
338 | id->card_id); | |
339 | ADD(alias, "f", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID, | |
340 | id->func_id); | |
341 | ADD(alias, "fn", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION, | |
342 | id->function); | |
343 | ADD(alias, "pfn", id->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO, | |
344 | id->device_no); | |
345 | ADD(alias, "pa", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1, id->prod_id_hash[0]); | |
346 | ADD(alias, "pb", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2, id->prod_id_hash[1]); | |
347 | ADD(alias, "pc", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3, id->prod_id_hash[2]); | |
348 | ADD(alias, "pd", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4, id->prod_id_hash[3]); | |
349 | ||
350 | return 1; | |
351 | } | |
352 | ||
353 | ||
354 | ||
5e655772 JM |
355 | static int do_of_entry (const char *filename, struct of_device_id *of, char *alias) |
356 | { | |
357 | char *tmp; | |
358 | sprintf (alias, "of:N%sT%sC%s", | |
359 | of->name[0] ? of->name : "*", | |
360 | of->type[0] ? of->type : "*", | |
361 | of->compatible[0] ? of->compatible : "*"); | |
362 | ||
363 | /* Replace all whitespace with underscores */ | |
364 | for (tmp = alias; tmp && *tmp; tmp++) | |
365 | if (isspace (*tmp)) | |
366 | *tmp = '_'; | |
367 | ||
368 | return 1; | |
369 | } | |
370 | ||
fb120da6 SR |
371 | static int do_vio_entry(const char *filename, struct vio_device_id *vio, |
372 | char *alias) | |
373 | { | |
374 | char *tmp; | |
375 | ||
376 | sprintf(alias, "vio:T%sS%s", vio->type[0] ? vio->type : "*", | |
377 | vio->compat[0] ? vio->compat : "*"); | |
378 | ||
379 | /* Replace all whitespace with underscores */ | |
380 | for (tmp = alias; tmp && *tmp; tmp++) | |
381 | if (isspace (*tmp)) | |
382 | *tmp = '_'; | |
383 | ||
384 | return 1; | |
385 | } | |
386 | ||
a9d1b24d GKH |
387 | static int do_i2c_entry(const char *filename, struct i2c_device_id *i2c, char *alias) |
388 | { | |
389 | strcpy(alias, "i2c:"); | |
390 | ADD(alias, "id", 1, i2c->id); | |
391 | return 1; | |
392 | } | |
393 | ||
1d8f430c RR |
394 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) |
395 | ||
396 | static void do_input(char *alias, | |
397 | kernel_ulong_t *arr, unsigned int min, unsigned int max) | |
398 | { | |
399 | unsigned int i; | |
ddc5d341 DT |
400 | |
401 | for (i = min; i < max; i++) | |
e0e92632 | 402 | if (arr[i / BITS_PER_LONG] & (1L << (i%BITS_PER_LONG))) |
ddc5d341 | 403 | sprintf(alias + strlen(alias), "%X,*", i); |
1d8f430c RR |
404 | } |
405 | ||
406 | /* input:b0v0p0e0-eXkXrXaXmXlXsXfXwX where X is comma-separated %02X. */ | |
407 | static int do_input_entry(const char *filename, struct input_device_id *id, | |
408 | char *alias) | |
409 | { | |
410 | sprintf(alias, "input:"); | |
411 | ||
ddc5d341 DT |
412 | ADD(alias, "b", id->flags & INPUT_DEVICE_ID_MATCH_BUS, id->bustype); |
413 | ADD(alias, "v", id->flags & INPUT_DEVICE_ID_MATCH_VENDOR, id->vendor); | |
414 | ADD(alias, "p", id->flags & INPUT_DEVICE_ID_MATCH_PRODUCT, id->product); | |
415 | ADD(alias, "e", id->flags & INPUT_DEVICE_ID_MATCH_VERSION, id->version); | |
1d8f430c RR |
416 | |
417 | sprintf(alias + strlen(alias), "-e*"); | |
ddc5d341 | 418 | if (id->flags & INPUT_DEVICE_ID_MATCH_EVBIT) |
1d8f430c RR |
419 | do_input(alias, id->evbit, 0, EV_MAX); |
420 | sprintf(alias + strlen(alias), "k*"); | |
ddc5d341 | 421 | if (id->flags & INPUT_DEVICE_ID_MATCH_KEYBIT) |
1d8f430c RR |
422 | do_input(alias, id->keybit, KEY_MIN_INTERESTING, KEY_MAX); |
423 | sprintf(alias + strlen(alias), "r*"); | |
ddc5d341 | 424 | if (id->flags & INPUT_DEVICE_ID_MATCH_RELBIT) |
1d8f430c RR |
425 | do_input(alias, id->relbit, 0, REL_MAX); |
426 | sprintf(alias + strlen(alias), "a*"); | |
ddc5d341 | 427 | if (id->flags & INPUT_DEVICE_ID_MATCH_ABSBIT) |
1d8f430c RR |
428 | do_input(alias, id->absbit, 0, ABS_MAX); |
429 | sprintf(alias + strlen(alias), "m*"); | |
ddc5d341 | 430 | if (id->flags & INPUT_DEVICE_ID_MATCH_MSCIT) |
1d8f430c RR |
431 | do_input(alias, id->mscbit, 0, MSC_MAX); |
432 | sprintf(alias + strlen(alias), "l*"); | |
ddc5d341 | 433 | if (id->flags & INPUT_DEVICE_ID_MATCH_LEDBIT) |
1d8f430c RR |
434 | do_input(alias, id->ledbit, 0, LED_MAX); |
435 | sprintf(alias + strlen(alias), "s*"); | |
ddc5d341 | 436 | if (id->flags & INPUT_DEVICE_ID_MATCH_SNDBIT) |
1d8f430c RR |
437 | do_input(alias, id->sndbit, 0, SND_MAX); |
438 | sprintf(alias + strlen(alias), "f*"); | |
ddc5d341 | 439 | if (id->flags & INPUT_DEVICE_ID_MATCH_FFBIT) |
cc6fa432 | 440 | do_input(alias, id->ffbit, 0, FF_MAX); |
1d8f430c | 441 | sprintf(alias + strlen(alias), "w*"); |
ddc5d341 | 442 | if (id->flags & INPUT_DEVICE_ID_MATCH_SWBIT) |
1d8f430c RR |
443 | do_input(alias, id->swbit, 0, SW_MAX); |
444 | return 1; | |
445 | } | |
446 | ||
07563c71 MT |
447 | static int do_eisa_entry(const char *filename, struct eisa_device_id *eisa, |
448 | char *alias) | |
449 | { | |
450 | if (eisa->sig[0]) | |
451 | sprintf(alias, EISA_DEVICE_MODALIAS_FMT "*", eisa->sig); | |
452 | return 1; | |
453 | } | |
454 | ||
1da177e4 LT |
455 | /* Ignore any prefix, eg. v850 prepends _ */ |
456 | static inline int sym_is(const char *symbol, const char *name) | |
457 | { | |
458 | const char *match; | |
459 | ||
460 | match = strstr(symbol, name); | |
461 | if (!match) | |
462 | return 0; | |
463 | return match[strlen(symbol)] == '\0'; | |
464 | } | |
465 | ||
466 | static void do_table(void *symval, unsigned long size, | |
467 | unsigned long id_size, | |
fb33d816 | 468 | const char *device_id, |
1da177e4 LT |
469 | void *function, |
470 | struct module *mod) | |
471 | { | |
472 | unsigned int i; | |
473 | char alias[500]; | |
474 | int (*do_entry)(const char *, void *entry, char *alias) = function; | |
475 | ||
fb33d816 | 476 | device_id_size_check(mod->name, device_id, size, id_size); |
1da177e4 LT |
477 | /* Leave last one: it's the terminator. */ |
478 | size -= id_size; | |
479 | ||
480 | for (i = 0; i < size; i += id_size) { | |
481 | if (do_entry(mod->name, symval+i, alias)) { | |
482 | /* Always end in a wildcard, for future extension */ | |
483 | if (alias[strlen(alias)-1] != '*') | |
484 | strcat(alias, "*"); | |
485 | buf_printf(&mod->dev_table_buf, | |
486 | "MODULE_ALIAS(\"%s\");\n", alias); | |
487 | } | |
488 | } | |
489 | } | |
490 | ||
491 | /* Create MODULE_ALIAS() statements. | |
492 | * At this time, we cannot write the actual output C source yet, | |
493 | * so we write into the mod->dev_table_buf buffer. */ | |
494 | void handle_moddevtable(struct module *mod, struct elf_info *info, | |
495 | Elf_Sym *sym, const char *symname) | |
496 | { | |
497 | void *symval; | |
498 | ||
499 | /* We're looking for a section relative symbol */ | |
500 | if (!sym->st_shndx || sym->st_shndx >= info->hdr->e_shnum) | |
501 | return; | |
502 | ||
503 | symval = (void *)info->hdr | |
504 | + info->sechdrs[sym->st_shndx].sh_offset | |
505 | + sym->st_value; | |
506 | ||
507 | if (sym_is(symname, "__mod_pci_device_table")) | |
fb33d816 SR |
508 | do_table(symval, sym->st_size, |
509 | sizeof(struct pci_device_id), "pci", | |
1da177e4 LT |
510 | do_pci_entry, mod); |
511 | else if (sym_is(symname, "__mod_usb_device_table")) | |
b19dcd93 RK |
512 | /* special case to handle bcdDevice ranges */ |
513 | do_usb_table(symval, sym->st_size, mod); | |
1da177e4 | 514 | else if (sym_is(symname, "__mod_ieee1394_device_table")) |
fb33d816 SR |
515 | do_table(symval, sym->st_size, |
516 | sizeof(struct ieee1394_device_id), "ieee1394", | |
1da177e4 LT |
517 | do_ieee1394_entry, mod); |
518 | else if (sym_is(symname, "__mod_ccw_device_table")) | |
fb33d816 SR |
519 | do_table(symval, sym->st_size, |
520 | sizeof(struct ccw_device_id), "ccw", | |
1da177e4 | 521 | do_ccw_entry, mod); |
1534c382 MS |
522 | else if (sym_is(symname, "__mod_ap_device_table")) |
523 | do_table(symval, sym->st_size, | |
524 | sizeof(struct ap_device_id), "ap", | |
525 | do_ap_entry, mod); | |
1da177e4 | 526 | else if (sym_is(symname, "__mod_serio_device_table")) |
fb33d816 SR |
527 | do_table(symval, sym->st_size, |
528 | sizeof(struct serio_device_id), "serio", | |
1da177e4 LT |
529 | do_serio_entry, mod); |
530 | else if (sym_is(symname, "__mod_pnp_device_table")) | |
fb33d816 SR |
531 | do_table(symval, sym->st_size, |
532 | sizeof(struct pnp_device_id), "pnp", | |
1da177e4 LT |
533 | do_pnp_entry, mod); |
534 | else if (sym_is(symname, "__mod_pnp_card_device_table")) | |
fb33d816 SR |
535 | do_table(symval, sym->st_size, |
536 | sizeof(struct pnp_card_device_id), "pnp_card", | |
1da177e4 | 537 | do_pnp_card_entry, mod); |
90829cfe | 538 | else if (sym_is(symname, "__mod_pcmcia_device_table")) |
fb33d816 SR |
539 | do_table(symval, sym->st_size, |
540 | sizeof(struct pcmcia_device_id), "pcmcia", | |
90829cfe | 541 | do_pcmcia_entry, mod); |
5e655772 | 542 | else if (sym_is(symname, "__mod_of_device_table")) |
fb33d816 SR |
543 | do_table(symval, sym->st_size, |
544 | sizeof(struct of_device_id), "of", | |
5e655772 | 545 | do_of_entry, mod); |
fb120da6 | 546 | else if (sym_is(symname, "__mod_vio_device_table")) |
fb33d816 SR |
547 | do_table(symval, sym->st_size, |
548 | sizeof(struct vio_device_id), "vio", | |
fb120da6 | 549 | do_vio_entry, mod); |
a9d1b24d | 550 | else if (sym_is(symname, "__mod_i2c_device_table")) |
fb33d816 SR |
551 | do_table(symval, sym->st_size, |
552 | sizeof(struct i2c_device_id), "i2c", | |
a9d1b24d | 553 | do_i2c_entry, mod); |
1d8f430c | 554 | else if (sym_is(symname, "__mod_input_device_table")) |
fb33d816 SR |
555 | do_table(symval, sym->st_size, |
556 | sizeof(struct input_device_id), "input", | |
1d8f430c | 557 | do_input_entry, mod); |
07563c71 MT |
558 | else if (sym_is(symname, "__mod_eisa_device_table")) |
559 | do_table(symval, sym->st_size, | |
560 | sizeof(struct eisa_device_id), "eisa", | |
561 | do_eisa_entry, mod); | |
1da177e4 LT |
562 | } |
563 | ||
564 | /* Now add out buffered information to the generated C source */ | |
565 | void add_moddevtable(struct buffer *buf, struct module *mod) | |
566 | { | |
567 | buf_printf(buf, "\n"); | |
568 | buf_write(buf, mod->dev_table_buf.p, mod->dev_table_buf.pos); | |
569 | free(mod->dev_table_buf.p); | |
570 | } |