X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=scripts%2Fmod%2Ffile2alias.c;h=cea4a790e1e97170459576b8b68c94daf3e95cc9;hb=4d7365d664e79710ac0e782a23443471ddf05bdd;hp=1e5d4d6931955bbf9432b3309c13b0ef0b8192c5;hpb=d59b66c7a575cfa8e01f483875d131e42b539bbc;p=safe%2Fjmp%2Flinux-2.6

diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index 1e5d4d6..cea4a79 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -51,21 +51,52 @@ do {                                                            \
                 sprintf(str + strlen(str), "*");                \
 } while(0)
 
+/* Always end in a wildcard, for future extension */
+static inline void add_wildcard(char *str)
+{
+	int len = strlen(str);
+
+	if (str[len - 1] != '*')
+		strcat(str + len, "*");
+}
+
+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_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) {
+		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 */
@@ -111,9 +142,7 @@ static void do_usb_entry(struct usb_device_id *id,
 	    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, "*");
+	add_wildcard(alias);
 	buf_printf(&mod->dev_table_buf,
 		   "MODULE_ALIAS(\"%s\");\n", alias);
 }
@@ -137,7 +166,7 @@ static void do_usb_entry_multi(struct usb_device_id *id, struct module *mod)
 	 * 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))
+	if (!(id->idVendor | id->idProduct | id->bDeviceClass | id->bInterfaceClass))
 		return;
 
 	/* Convert numeric bcdDevice range into fnmatch-able pattern(s) */
@@ -168,7 +197,7 @@ static void do_usb_table(void *symval, unsigned long size,
 	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;
@@ -197,6 +226,7 @@ static int do_ieee1394_entry(const char *filename,
 	ADD(alias, "ver", id->match_flags & IEEE1394_MATCH_VERSION,
 	    id->version);
 
+	add_wildcard(alias);
 	return 1;
 }
 
@@ -239,6 +269,7 @@ static int do_pci_entry(const char *filename,
 	ADD(alias, "bc", baseclass_mask == 0xFF, baseclass);
 	ADD(alias, "sc", subclass_mask == 0xFF, subclass);
 	ADD(alias, "i", interface_mask == 0xFF, interface);
+	add_wildcard(alias);
 	return 1;
 }
 
@@ -261,6 +292,7 @@ static int do_ccw_entry(const char *filename,
 	    id->dev_type);
 	ADD(alias, "dm", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_MODEL,
 	    id->dev_model);
+	add_wildcard(alias);
 	return 1;
 }
 
@@ -268,7 +300,7 @@ static int do_ccw_entry(const char *filename,
 static int do_ap_entry(const char *filename,
 		       struct ap_device_id *id, char *alias)
 {
-	sprintf(alias, "ap:t%02X", id->dev_type);
+	sprintf(alias, "ap:t%02X*", id->dev_type);
 	return 1;
 }
 
@@ -287,6 +319,7 @@ static int do_serio_entry(const char *filename,
 	ADD(alias, "id", id->id != SERIO_ANY, id->id);
 	ADD(alias, "ex", id->extra != SERIO_ANY, id->extra);
 
+	add_wildcard(alias);
 	return 1;
 }
 
@@ -294,7 +327,7 @@ static int do_serio_entry(const char *filename,
 static int do_acpi_entry(const char *filename,
 			struct acpi_device_id *id, char *alias)
 {
-	sprintf(alias, "acpi*:%s:", id->id);
+	sprintf(alias, "acpi*:%s:*", id->id);
 	return 1;
 }
 
@@ -302,23 +335,56 @@ static int do_acpi_entry(const char *filename,
 static int do_pnp_entry(const char *filename,
 			struct pnp_device_id *id, char *alias)
 {
-	sprintf(alias, "pnp:d%s", id->id);
+	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)
+/* looks like: "pnp:dD" for every device of the card */
+static void do_pnp_card_entries(void *symval, unsigned long size,
+				struct module *mod)
 {
-	int i;
+	const unsigned long id_size = sizeof(struct pnp_card_device_id);
+	const unsigned int count = (size / id_size)-1;
+	const struct pnp_card_device_id *cards = symval;
+	unsigned 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);
+	device_id_check(mod->name, "pnp", size, id_size, symval);
+
+	for (i = 0; i < count; i++) {
+		unsigned int j;
+		const struct pnp_card_device_id *card = &cards[i];
+
+		for (j = 0; j < PNP_MAX_DEVICES; j++) {
+			const char *id = (char *)card->devs[j].id;
+			int i2, j2;
+			int dup = 0;
+
+			if (!id[0])
+				break;
+
+			/* find duplicate, already added value */
+			for (i2 = 0; i2 < i && !dup; i2++) {
+				const struct pnp_card_device_id *card2 = &cards[i2];
+
+				for (j2 = 0; j2 < PNP_MAX_DEVICES; j2++) {
+					const char *id2 = (char *)card2->devs[j2].id;
+
+					if (!id2[0])
+						break;
+
+					if (!strcmp(id, id2)) {
+						dup = 1;
+						break;
+					}
+				}
+			}
+
+			/* add an individual alias for every device entry */
+			if (!dup)
+				buf_printf(&mod->dev_table_buf,
+					   "MODULE_ALIAS(\"pnp:d%s*\");\n", id);
+		}
 	}
-	return 1;
 }
 
 /* Looks like: pcmcia:mNcNfNfnNpfnNvaNvbNvcNvdN. */
@@ -354,6 +420,7 @@ static int do_pcmcia_entry(const char *filename,
        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]);
 
+	add_wildcard(alias);
        return 1;
 }
 
@@ -377,6 +444,7 @@ static int do_of_entry (const char *filename, struct of_device_id *of, char *ali
         if (isspace (*tmp))
             *tmp = '_';
 
+    add_wildcard(alias);
     return 1;
 }
 
@@ -393,13 +461,7 @@ static int do_vio_entry(const char *filename, struct vio_device_id *vio,
 		if (isspace (*tmp))
 			*tmp = '_';
 
-	return 1;
-}
-
-static int do_i2c_entry(const char *filename, struct i2c_device_id *i2c, char *alias)
-{
-	strcpy(alias, "i2c:");
-	ADD(alias, "id", 1, i2c->id);
+	add_wildcard(alias);
 	return 1;
 }
 
@@ -463,6 +525,8 @@ static int do_eisa_entry(const char *filename, struct eisa_device_id *eisa,
 {
 	if (eisa->sig[0])
 		sprintf(alias, EISA_DEVICE_MODALIAS_FMT "*", eisa->sig);
+	else
+		strcat(alias, "*");
 	return 1;
 }
 
@@ -481,6 +545,7 @@ static int do_parisc_entry(const char *filename, struct parisc_device_id *id,
 	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);
 
+	add_wildcard(alias);
 	return 1;
 }
 
@@ -496,6 +561,46 @@ static int do_sdio_entry(const char *filename,
 	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);
+	add_wildcard(alias);
+	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);
+	add_wildcard(alias);
+	return 1;
+}
+
+/* Looks like: virtio:dNvN */
+static int do_virtio_entry(const char *filename, struct virtio_device_id *id,
+			   char *alias)
+{
+	id->device = TO_NATIVE(id->device);
+	id->vendor = TO_NATIVE(id->vendor);
+
+	strcpy(alias, "virtio:");
+	ADD(alias, "d", 1, id->device);
+	ADD(alias, "v", id->vendor != VIRTIO_DEV_ANY_ID, id->vendor);
+
+	add_wildcard(alias);
+	return 1;
+}
+
+/* Looks like: i2c:S */
+static int do_i2c_entry(const char *filename, struct i2c_device_id *id,
+			char *alias)
+{
+	sprintf(alias, I2C_MODULE_PREFIX "%s", id->name);
 
 	return 1;
 }
@@ -521,15 +626,12 @@ static void do_table(void *symval, unsigned long size,
 	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;
 
 	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);
 		}
@@ -543,14 +645,21 @@ 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;
 
-	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,
@@ -584,9 +693,7 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
 			 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);
+		do_pnp_card_entries(symval, sym->st_size, mod);
 	else if (sym_is(symname, "__mod_pcmcia_device_table"))
 		do_table(symval, sym->st_size,
 			 sizeof(struct pcmcia_device_id), "pcmcia",
@@ -599,10 +706,6 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
 		do_table(symval, sym->st_size,
 			 sizeof(struct vio_device_id), "vio",
 			 do_vio_entry, mod);
-	else if (sym_is(symname, "__mod_i2c_device_table"))
-		do_table(symval, sym->st_size,
-			 sizeof(struct i2c_device_id), "i2c",
-			 do_i2c_entry, mod);
 	else if (sym_is(symname, "__mod_input_device_table"))
 		do_table(symval, sym->st_size,
 			 sizeof(struct input_device_id), "input",
@@ -619,6 +722,19 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
 		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);
+	else if (sym_is(symname, "__mod_virtio_device_table"))
+		do_table(symval, sym->st_size,
+			 sizeof(struct virtio_device_id), "virtio",
+			 do_virtio_entry, mod);
+	else if (sym_is(symname, "__mod_i2c_device_table"))
+		do_table(symval, sym->st_size,
+			 sizeof(struct i2c_device_id), "i2c",
+			 do_i2c_entry, mod);
+	free(zeros);
 }
 
 /* Now add out buffered information to the generated C source */