* 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_size_check(const char *modname, const char *device_id,
- unsigned long size, unsigned long id_size)
+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"
"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 */
unsigned int i;
const unsigned long id_size = sizeof(struct usb_device_id);
- device_id_size_check(mod->name, "usb", size, id_size);
+ device_id_check(mod->name, "usb", size, id_size, symval);
/* Leave last one: it's the terminator. */
size -= id_size;
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)
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)
{
char alias[500];
int (*do_entry)(const char *, void *entry, char *alias) = function;
- device_id_size_check(mod->name, device_id, size, id_size);
+ device_id_check(mod->name, device_id, size, id_size, symval);
/* Leave last one: it's the terminator. */
size -= id_size;
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;
- symval = (void *)info->hdr
- + info->sechdrs[sym->st_shndx].sh_offset
- + sym->st_value;
+ /* 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,
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_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 */
projects / cascardo / linux.git / blobdiff