| /* 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 == ELFCLASS32 |
| typedef Elf32_Addr kernel_ulong_t; |
| #define BITS_PER_LONG 32 |
| #else |
| typedef 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) |
| |
| /** |
| * 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. |
| **/ |
| 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) { |
| 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->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; |
| } |
| |
| /* Looks like: sdio:cNvNdN. */ |
| static int do_sdio_entry(const char *filename, |
| struct sdio_device_id *id, char *alias) |
| { |
| id->class = TO_NATIVE(id->class); |
| id->vendor = TO_NATIVE(id->vendor); |
| id->device = TO_NATIVE(id->device); |
| |
| strcpy(alias, "sdio:"); |
| ADD(alias, "c", id->class != (__u8)SDIO_ANY_ID, id->class); |
| ADD(alias, "v", id->vendor != (__u16)SDIO_ANY_ID, id->vendor); |
| ADD(alias, "d", id->device != (__u16)SDIO_ANY_ID, id->device); |
| return 1; |
| } |
| |
| /* Looks like: ssb:vNidNrevN. */ |
| static int do_ssb_entry(const char *filename, |
| struct ssb_device_id *id, char *alias) |
| { |
| id->vendor = TO_NATIVE(id->vendor); |
| id->coreid = TO_NATIVE(id->coreid); |
| id->revision = TO_NATIVE(id->revision); |
| |
| strcpy(alias, "ssb:"); |
| ADD(alias, "v", id->vendor != SSB_ANY_VENDOR, id->vendor); |
| ADD(alias, "id", id->coreid != SSB_ANY_ID, id->coreid); |
| ADD(alias, "rev", id->revision != SSB_ANY_REV, id->revision); |
| return 1; |
| } |
| |
| /* Ignore any prefix, eg. v850 prepends _ */ |
| static inline int sym_is(const char *symbol, const char *name) |
| { |
| const char *match; |
| |
| match = strstr(symbol, name); |
| if (!match) |
| return 0; |
| return match[strlen(symbol)] == '\0'; |
| } |
| |
| static void do_table(void *symval, unsigned long size, |
| unsigned long id_size, |
| const char *device_id, |
| void *function, |
| struct module *mod) |
| { |
| unsigned int i; |
| char alias[500]; |
| int (*do_entry)(const char *, void *entry, char *alias) = function; |
| |
| device_id_check(mod->name, device_id, size, id_size, symval); |
| /* Leave last one: it's the terminator. */ |
| size -= id_size; |
| |
| for (i = 0; i < size; i += id_size) { |
| if (do_entry(mod->name, symval+i, alias)) { |
| /* 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); |
| } |
| } |
| } |
| |
| /* Create MODULE_ALIAS() statements. |
| * At this time, we cannot write the actual output C source yet, |
| * so we write into the mod->dev_table_buf buffer. */ |
| void handle_moddevtable(struct module *mod, struct elf_info *info, |
| Elf_Sym *sym, const char *symname) |
| { |
| void *symval; |
| char *zeros = NULL; |
| |
| /* We're looking for a section relative symbol */ |
| if (!sym->st_shndx || sym->st_shndx >= info->hdr->e_shnum) |
| return; |
| |
| /* Handle all-NULL symbols allocated into .bss */ |
| if (info->sechdrs[sym->st_shndx].sh_type & SHT_NOBITS) { |
| zeros = calloc(1, sym->st_size); |
| symval = zeros; |
| } else { |
| symval = (void *)info->hdr |
| + info->sechdrs[sym->st_shndx].sh_offset |
| + sym->st_value; |
| } |
| |
| if (sym_is(symname, "__mod_pci_device_table")) |
| do_table(symval, sym->st_size, |
| sizeof(struct pci_device_id), "pci", |
| do_pci_entry, mod); |
| else if (sym_is(symname, "__mod_usb_device_table")) |
| /* special case to handle bcdDevice ranges */ |
| do_usb_table(symval, sym->st_size, mod); |
| else if (sym_is(symname, "__mod_ieee1394_device_table")) |
| do_table(symval, sym->st_size, |
| sizeof(struct ieee1394_device_id), "ieee1394", |
| do_ieee1394_entry, mod); |
| else if (sym_is(symname, "__mod_ccw_device_table")) |
| do_table(symval, sym->st_size, |
| sizeof(struct ccw_device_id), "ccw", |
| do_ccw_entry, mod); |
| else if (sym_is(symname, "__mod_ap_device_table")) |
| do_table(symval, sym->st_size, |
| sizeof(struct ap_device_id), "ap", |
| do_ap_entry, mod); |
| else if (sym_is(symname, "__mod_serio_device_table")) |
| do_table(symval, sym->st_size, |
| sizeof(struct serio_device_id), "serio", |
| do_serio_entry, mod); |
| else if (sym_is(symname, "__mod_acpi_device_table")) |
| do_table(symval, sym->st_size, |
| sizeof(struct acpi_device_id), "acpi", |
| do_acpi_entry, mod); |
| else if (sym_is(symname, "__mod_pnp_device_table")) |
| do_table(symval, sym->st_size, |
| sizeof(struct pnp_device_id), "pnp", |
| do_pnp_entry, mod); |
| else if (sym_is(symname, "__mod_pnp_card_device_table")) |
| do_table(symval, sym->st_size, |
| sizeof(struct pnp_card_device_id), "pnp_card", |
| do_pnp_card_entry, mod); |
| else if (sym_is(symname, "__mod_pcmcia_device_table")) |
| do_table(symval, sym->st_size, |
| sizeof(struct pcmcia_device_id), "pcmcia", |
| do_pcmcia_entry, mod); |
| else if (sym_is(symname, "__mod_of_device_table")) |
| do_table(symval, sym->st_size, |
| sizeof(struct of_device_id), "of", |
| do_of_entry, mod); |
| else if (sym_is(symname, "__mod_vio_device_table")) |
| do_table(symval, sym->st_size, |
| sizeof(struct vio_device_id), "vio", |
| do_vio_entry, mod); |
| else if (sym_is(symname, "__mod_input_device_table")) |
| do_table(symval, sym->st_size, |
| sizeof(struct input_device_id), "input", |
| do_input_entry, mod); |
| else if (sym_is(symname, "__mod_eisa_device_table")) |
| do_table(symval, sym->st_size, |
| sizeof(struct eisa_device_id), "eisa", |
| do_eisa_entry, mod); |
| else if (sym_is(symname, "__mod_parisc_device_table")) |
| do_table(symval, sym->st_size, |
| sizeof(struct parisc_device_id), "parisc", |
| do_parisc_entry, mod); |
| else if (sym_is(symname, "__mod_sdio_device_table")) |
| do_table(symval, sym->st_size, |
| sizeof(struct sdio_device_id), "sdio", |
| do_sdio_entry, mod); |
| else if (sym_is(symname, "__mod_ssb_device_table")) |
| do_table(symval, sym->st_size, |
| sizeof(struct ssb_device_id), "ssb", |
| do_ssb_entry, mod); |
| free(zeros); |
| } |
| |
| /* Now add out buffered information to the generated C source */ |
| void add_moddevtable(struct buffer *buf, struct module *mod) |
| { |
| buf_printf(buf, "\n"); |
| buf_write(buf, mod->dev_table_buf.p, mod->dev_table_buf.pos); |
| free(mod->dev_table_buf.p); |
| } |