/* Simple code to turn various tables in an ELF file into alias definitions. * This deals with kernel datastructures where they should be * dealt with: in the kernel source. * * Copyright 2002-2003  Rusty Russell, IBM Corporation *           2003       Kai Germaschewski * * * This software may be used and distributed according to the terms * of the GNU General Public License, incorporated herein by reference. */ #include "modpost.h" /* We use the ELF typedefs for kernel_ulong_t but bite the bullet and * use either stdint.h or inttypes.h for the rest. */#if KERNEL_ELFCLASS == ELFCLASS32typedef Elf32_Addr	kernel_ulong_t;#define BITS_PER_LONG 32#elsetypedef Elf64_Addr	kernel_ulong_t;#define BITS_PER_LONG 64#endif#ifdef __sun__#include <inttypes.h>#else#include <stdint.h>#endif #include <ctype.h> typedef uint32_t	__u32;typedef uint16_t	__u16;typedef unsigned char	__u8; /* Big exception to the "don't include kernel headers into userspace, which * even potentially has different endianness and word sizes, since * we handle those differences explicitly below */#include "../../include/linux/mod_devicetable.h" #define ADD(str, sep, cond, field)                              \do {                                                            \        strcat(str, sep);                                       \        if (cond)                                               \                sprintf(str + strlen(str),                      \                        sizeof(field) == 1 ? "%02X" :           \                        sizeof(field) == 2 ? "%04X" :           \                        sizeof(field) == 4 ? "%08X" : "",       \                        field);                                 \        else                                                    \                sprintf(str + strlen(str), "*");                \} while(0) unsigned int cross_build = 0;/** * Check that sizeof(device_id type) are consistent with size of section * in .o file. If in-consistent then userspace and kernel does not agree * on actual size which is a bug. * Also verify that the final entry in the table is all zeros. * Ignore both checks if build host differ from target host and size differs. **/static void device_id_check(const char *modname, const char *device_id,			    unsigned long size, unsigned long id_size,			    void *symval){	int i; 	if (size % id_size || size < id_size) {		if (cross_build != 0)			return;		fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo "		      "of the size of section __mod_%s_device_table=%lu.\n"		      "Fix definition of struct %s_device_id "		      "in mod_devicetable.h\n",		      modname, device_id, id_size, device_id, size, device_id);	}	/* Verify last one is a terminator */	for (i = 0; i < id_size; i++ ) {		if (*(uint8_t*)(symval+size-id_size+i)) {			fprintf(stderr,"%s: struct %s_device_id is %lu bytes.  "				"The last of %lu is:\n",				modname, device_id, id_size, size / id_size);			for (i = 0; i < id_size; i++ )				fprintf(stderr,"0x%02x ",					*(uint8_t*)(symval+size-id_size+i) );			fprintf(stderr,"\n");			fatal("%s: struct %s_device_id is not terminated "				"with a NULL entry!\n", modname, device_id);		}	}} /* USB is special because the bcdDevice can be matched against a numeric range *//* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipN" */static void do_usb_entry(struct usb_device_id *id,			 unsigned int bcdDevice_initial, int bcdDevice_initial_digits,			 unsigned char range_lo, unsigned char range_hi,			 struct module *mod){	char alias[500];	strcpy(alias, "usb:");	ADD(alias, "v", id->match_flags&USB_DEVICE_ID_MATCH_VENDOR,	    id->idVendor);	ADD(alias, "p", id->match_flags&USB_DEVICE_ID_MATCH_PRODUCT,	    id->idProduct); 	strcat(alias, "d");	if (bcdDevice_initial_digits)		sprintf(alias + strlen(alias), "%0*X",			bcdDevice_initial_digits, bcdDevice_initial);	if (range_lo == range_hi)		sprintf(alias + strlen(alias), "%u", range_lo);	else if (range_lo > 0 || range_hi < 9)		sprintf(alias + strlen(alias), "[%u-%u]", range_lo, range_hi);	if (bcdDevice_initial_digits < (sizeof(id->bcdDevice_lo) * 2 - 1))		strcat(alias, "*"); 	ADD(alias, "dc", id->match_flags&USB_DEVICE_ID_MATCH_DEV_CLASS,	    id->bDeviceClass);	ADD(alias, "dsc",	    id->match_flags&USB_DEVICE_ID_MATCH_DEV_SUBCLASS,	    id->bDeviceSubClass);	ADD(alias, "dp",	    id->match_flags&USB_DEVICE_ID_MATCH_DEV_PROTOCOL,	    id->bDeviceProtocol);	ADD(alias, "ic",	    id->match_flags&USB_DEVICE_ID_MATCH_INT_CLASS,	    id->bInterfaceClass);	ADD(alias, "isc",	    id->match_flags&USB_DEVICE_ID_MATCH_INT_SUBCLASS,	    id->bInterfaceSubClass);	ADD(alias, "ip",	    id->match_flags&USB_DEVICE_ID_MATCH_INT_PROTOCOL,	    id->bInterfaceProtocol); 	/* Always end in a wildcard, for future extension */	if (alias[strlen(alias)-1] != '*')		strcat(alias, "*");	buf_printf(&mod->dev_table_buf,		   "MODULE_ALIAS(\"%s\");\n", alias);} static void do_usb_entry_multi(struct usb_device_id *id, struct module *mod){	unsigned int devlo, devhi;	unsigned char chi, clo;	int ndigits; 	id->match_flags = TO_NATIVE(id->match_flags);	id->idVendor = TO_NATIVE(id->idVendor);	id->idProduct = TO_NATIVE(id->idProduct); 	devlo = id->match_flags & USB_DEVICE_ID_MATCH_DEV_LO ?		TO_NATIVE(id->bcdDevice_lo) : 0x0U;	devhi = id->match_flags & USB_DEVICE_ID_MATCH_DEV_HI ?		TO_NATIVE(id->bcdDevice_hi) : ~0x0U; 	/*	 * Some modules (visor) have empty slots as placeholder for	 * run-time specification that results in catch-all alias	 */	if (!(id->idVendor | id->idProduct | id->bDeviceClass | id->bInterfaceClass))		return; 	/* Convert numeric bcdDevice range into fnmatch-able pattern(s) */	for (ndigits = sizeof(id->bcdDevice_lo) * 2 - 1; devlo <= devhi; ndigits--) {		clo = devlo & 0xf;		chi = devhi & 0xf;		if (chi > 9)	/* it's bcd not hex */			chi = 9;		devlo >>= 4;		devhi >>= 4; 		if (devlo == devhi || !ndigits) {			do_usb_entry(id, devlo, ndigits, clo, chi, mod);			break;		} 		if (clo > 0)			do_usb_entry(id, devlo++, ndigits, clo, 9, mod); 		if (chi < 9)			do_usb_entry(id, devhi--, ndigits, 0, chi, mod);	}} static void do_usb_table(void *symval, unsigned long size,			 struct module *mod){	unsigned int i;	const unsigned long id_size = sizeof(struct usb_device_id); 	device_id_check(mod->name, "usb", size, id_size, symval); 	/* Leave last one: it's the terminator. */	size -= id_size; 	for (i = 0; i < size; i += id_size)		do_usb_entry_multi(symval + i, mod);} /* Looks like: ieee1394:venNmoNspNverN */static int do_ieee1394_entry(const char *filename,			     struct ieee1394_device_id *id, char *alias){	id->match_flags = TO_NATIVE(id->match_flags);	id->vendor_id = TO_NATIVE(id->vendor_id);	id->model_id = TO_NATIVE(id->model_id);	id->specifier_id = TO_NATIVE(id->specifier_id);	id->version = TO_NATIVE(id->version); 	strcpy(alias, "ieee1394:");	ADD(alias, "ven", id->match_flags & IEEE1394_MATCH_VENDOR_ID,	    id->vendor_id);	ADD(alias, "mo", id->match_flags & IEEE1394_MATCH_MODEL_ID,	    id->model_id);	ADD(alias, "sp", id->match_flags & IEEE1394_MATCH_SPECIFIER_ID,	    id->specifier_id);	ADD(alias, "ver", id->match_flags & IEEE1394_MATCH_VERSION,	    id->version); 	return 1;} /* Looks like: pci:vNdNsvNsdNbcNscNiN. */static int do_pci_entry(const char *filename,			struct pci_device_id *id, char *alias){	/* Class field can be divided into these three. */	unsigned char baseclass, subclass, interface,		baseclass_mask, subclass_mask, interface_mask; 	id->vendor = TO_NATIVE(id->vendor);	id->device = TO_NATIVE(id->device);	id->subvendor = TO_NATIVE(id->subvendor);	id->subdevice = TO_NATIVE(id->subdevice);	id->class = TO_NATIVE(id->class);	id->class_mask = TO_NATIVE(id->class_mask); 	strcpy(alias, "pci:");	ADD(alias, "v", id->vendor != PCI_ANY_ID, id->vendor);	ADD(alias, "d", id->device != PCI_ANY_ID, id->device);	ADD(alias, "sv", id->subvendor != PCI_ANY_ID, id->subvendor);	ADD(alias, "sd", id->subdevice != PCI_ANY_ID, id->subdevice); 	baseclass = (id->class) >> 16;	baseclass_mask = (id->class_mask) >> 16;	subclass = (id->class) >> 8;	subclass_mask = (id->class_mask) >> 8;	interface = id->class;	interface_mask = id->class_mask; 	if ((baseclass_mask != 0 && baseclass_mask != 0xFF)	    || (subclass_mask != 0 && subclass_mask != 0xFF)	    || (interface_mask != 0 && interface_mask != 0xFF)) {		warn("Can't handle masks in %s:%04X\n",		     filename, id->class_mask);		return 0;	} 	ADD(alias, "bc", baseclass_mask == 0xFF, baseclass);	ADD(alias, "sc", subclass_mask == 0xFF, subclass);	ADD(alias, "i", interface_mask == 0xFF, interface);	return 1;} /* looks like: "ccw:tNmNdtNdmN" */static int do_ccw_entry(const char *filename,			struct ccw_device_id *id, char *alias){	id->match_flags = TO_NATIVE(id->match_flags);	id->cu_type = TO_NATIVE(id->cu_type);	id->cu_model = TO_NATIVE(id->cu_model);	id->dev_type = TO_NATIVE(id->dev_type);	id->dev_model = TO_NATIVE(id->dev_model); 	strcpy(alias, "ccw:");	ADD(alias, "t", id->match_flags&CCW_DEVICE_ID_MATCH_CU_TYPE,	    id->cu_type);	ADD(alias, "m", id->match_flags&CCW_DEVICE_ID_MATCH_CU_MODEL,	    id->cu_model);	ADD(alias, "dt", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_TYPE,	    id->dev_type);	ADD(alias, "dm", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_MODEL,	    id->dev_model);	return 1;} /* looks like: "ap:tN" */static int do_ap_entry(const char *filename,		       struct ap_device_id *id, char *alias){	sprintf(alias, "ap:t%02X", id->dev_type);	return 1;} /* Looks like: "serio:tyNprNidNexN" */static int do_serio_entry(const char *filename,			  struct serio_device_id *id, char *alias){	id->type = TO_NATIVE(id->type);	id->proto = TO_NATIVE(id->proto);	id->id = TO_NATIVE(id->id);	id->extra = TO_NATIVE(id->extra); 	strcpy(alias, "serio:");	ADD(alias, "ty", id->type != SERIO_ANY, id->type);	ADD(alias, "pr", id->proto != SERIO_ANY, id->proto);	ADD(alias, "id", id->id != SERIO_ANY, id->id);	ADD(alias, "ex", id->extra != SERIO_ANY, id->extra); 	return 1;} /* looks like: "acpi:ACPI0003 or acpi:PNP0C0B" or "acpi:LNXVIDEO" */static int do_acpi_entry(const char *filename,			struct acpi_device_id *id, char *alias){	sprintf(alias, "acpi*:%s:", id->id);	return 1;} /* looks like: "pnp:dD" */static int do_pnp_entry(const char *filename,			struct pnp_device_id *id, char *alias){	sprintf(alias, "pnp:d%s", id->id);	return 1;} /* looks like: "pnp:cCdD..." */static int do_pnp_card_entry(const char *filename,			struct pnp_card_device_id *id, char *alias){	int i; 	sprintf(alias, "pnp:c%s", id->id);	for (i = 0; i < PNP_MAX_DEVICES; i++) {		if (! *id->devs[i].id)			break;		sprintf(alias + strlen(alias), "d%s", id->devs[i].id);	}	return 1;} /* Looks like: pcmcia:mNcNfNfnNpfnNvaNvbNvcNvdN. */static int do_pcmcia_entry(const char *filename,			   struct pcmcia_device_id *id, char *alias){	unsigned int i; 	id->match_flags = TO_NATIVE(id->match_flags);	id->manf_id = TO_NATIVE(id->manf_id);	id->card_id = TO_NATIVE(id->card_id);	id->func_id = TO_NATIVE(id->func_id);	id->function = TO_NATIVE(id->function);	id->device_no = TO_NATIVE(id->device_no); 	for (i=0; i<4; i++) {		id->prod_id_hash[i] = TO_NATIVE(id->prod_id_hash[i]);       }        strcpy(alias, "pcmcia:");       ADD(alias, "m", id->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID,	   id->manf_id);       ADD(alias, "c", id->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID,	   id->card_id);       ADD(alias, "f", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID,	   id->func_id);       ADD(alias, "fn", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION,	   id->function);       ADD(alias, "pfn", id->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO,	   id->device_no);       ADD(alias, "pa", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1, id->prod_id_hash[0]);       ADD(alias, "pb", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2, id->prod_id_hash[1]);       ADD(alias, "pc", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3, id->prod_id_hash[2]);       ADD(alias, "pd", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4, id->prod_id_hash[3]);        return 1;}   static int do_of_entry (const char *filename, struct of_device_id *of, char *alias){    int len;    char *tmp;    len = sprintf (alias, "of:N%sT%s",                    of->name[0] ? of->name : "*",                    of->type[0] ? of->type : "*");     if (of->compatible[0])        sprintf (&alias[len], "%sC%s",                     of->type[0] ? "*" : "",                     of->compatible);     /* Replace all whitespace with underscores */    for (tmp = alias; tmp && *tmp; tmp++)        if (isspace (*tmp))            *tmp = '_';     return 1;} static int do_vio_entry(const char *filename, struct vio_device_id *vio,		char *alias){	char *tmp; 	sprintf(alias, "vio:T%sS%s", vio->type[0] ? vio->type : "*",			vio->compat[0] ? vio->compat : "*"); 	/* Replace all whitespace with underscores */	for (tmp = alias; tmp && *tmp; tmp++)		if (isspace (*tmp))			*tmp = '_'; 	return 1;} #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) static void do_input(char *alias,		     kernel_ulong_t *arr, unsigned int min, unsigned int max){	unsigned int i; 	for (i = min; i < max; i++)		if (arr[i / BITS_PER_LONG] & (1L << (i%BITS_PER_LONG)))			sprintf(alias + strlen(alias), "%X,*", i);} /* input:b0v0p0e0-eXkXrXaXmXlXsXfXwX where X is comma-separated %02X. */static int do_input_entry(const char *filename, struct input_device_id *id,			  char *alias){	sprintf(alias, "input:"); 	ADD(alias, "b", id->flags & INPUT_DEVICE_ID_MATCH_BUS, id->bustype);	ADD(alias, "v", id->flags & INPUT_DEVICE_ID_MATCH_VENDOR, id->vendor);	ADD(alias, "p", id->flags & INPUT_DEVICE_ID_MATCH_PRODUCT, id->product);	ADD(alias, "e", id->flags & INPUT_DEVICE_ID_MATCH_VERSION, id->version); 	sprintf(alias + strlen(alias), "-e*");	if (id->flags & INPUT_DEVICE_ID_MATCH_EVBIT)		do_input(alias, id->evbit, 0, INPUT_DEVICE_ID_EV_MAX);	sprintf(alias + strlen(alias), "k*");	if (id->flags & INPUT_DEVICE_ID_MATCH_KEYBIT)		do_input(alias, id->keybit,			 INPUT_DEVICE_ID_KEY_MIN_INTERESTING,			 INPUT_DEVICE_ID_KEY_MAX);	sprintf(alias + strlen(alias), "r*");	if (id->flags & INPUT_DEVICE_ID_MATCH_RELBIT)		do_input(alias, id->relbit, 0, INPUT_DEVICE_ID_REL_MAX);	sprintf(alias + strlen(alias), "a*");	if (id->flags & INPUT_DEVICE_ID_MATCH_ABSBIT)		do_input(alias, id->absbit, 0, INPUT_DEVICE_ID_ABS_MAX);	sprintf(alias + strlen(alias), "m*");	if (id->flags & INPUT_DEVICE_ID_MATCH_MSCIT)		do_input(alias, id->mscbit, 0, INPUT_DEVICE_ID_MSC_MAX);	sprintf(alias + strlen(alias), "l*");	if (id->flags & INPUT_DEVICE_ID_MATCH_LEDBIT)		do_input(alias, id->ledbit, 0, INPUT_DEVICE_ID_LED_MAX);	sprintf(alias + strlen(alias), "s*");	if (id->flags & INPUT_DEVICE_ID_MATCH_SNDBIT)		do_input(alias, id->sndbit, 0, INPUT_DEVICE_ID_SND_MAX);	sprintf(alias + strlen(alias), "f*");	if (id->flags & INPUT_DEVICE_ID_MATCH_FFBIT)		do_input(alias, id->ffbit, 0, INPUT_DEVICE_ID_FF_MAX);	sprintf(alias + strlen(alias), "w*");	if (id->flags & INPUT_DEVICE_ID_MATCH_SWBIT)		do_input(alias, id->swbit, 0, INPUT_DEVICE_ID_SW_MAX);	return 1;} static int do_eisa_entry(const char *filename, struct eisa_device_id *eisa,		char *alias){	if (eisa->sig[0])		sprintf(alias, EISA_DEVICE_MODALIAS_FMT "*", eisa->sig);	return 1;} /* Looks like: parisc:tNhvNrevNsvN */static int do_parisc_entry(const char *filename, struct parisc_device_id *id,		char *alias){	id->hw_type = TO_NATIVE(id->hw_type);	id->hversion = TO_NATIVE(id->hversion);	id->hversion_rev = TO_NATIVE(id->hversion_rev);	id->sversion = TO_NATIVE(id->sversion); 	strcpy(alias, "parisc:");	ADD(alias, "t", id->hw_type != PA_HWTYPE_ANY_ID, id->hw_type);	ADD(alias, "hv", id->hversion != PA_HVERSION_ANY_ID, id->hversion);	ADD(alias, "rev", id->hversion_rev != PA_HVERSION_REV_ANY_ID, id->hversion_rev);	ADD(alias, "sv", id->sversion != PA_SVERSION_ANY_ID, id->sversion); 	return 1;}

Lines 1–500 of 685. Load more