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Diffstat (limited to 'scripts/mod/file2alias.c')
-rw-r--r--scripts/mod/file2alias.c89
1 files changed, 59 insertions, 30 deletions
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index 5b5745f00eb3..4e99393a35f1 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -94,6 +94,7 @@ module_alias_printf(struct module *mod, bool append_wildcard,
}
}
+ new->builtin_modname = NULL;
list_add_tail(&new->node, &mod->aliases);
}
@@ -132,7 +133,8 @@ struct devtable {
* based at address m.
*/
#define DEF_FIELD(m, devid, f) \
- typeof(((struct devid *)0)->f) f = TO_NATIVE(*(typeof(f) *)((m) + OFF_##devid##_##f))
+ typeof(((struct devid *)0)->f) f = \
+ get_unaligned_native((typeof(f) *)((m) + OFF_##devid##_##f))
/* Define a variable f that holds the address of field f of struct devid
* based at address m. Due to the way typeof works, for a field of type
@@ -600,7 +602,7 @@ static void do_pnp_card_entry(struct module *mod, void *symval)
static void do_pcmcia_entry(struct module *mod, void *symval)
{
char alias[256] = {};
- unsigned int i;
+
DEF_FIELD(symval, pcmcia_device_id, match_flags);
DEF_FIELD(symval, pcmcia_device_id, manf_id);
DEF_FIELD(symval, pcmcia_device_id, card_id);
@@ -609,10 +611,6 @@ static void do_pcmcia_entry(struct module *mod, void *symval)
DEF_FIELD(symval, pcmcia_device_id, device_no);
DEF_FIELD_ADDR(symval, pcmcia_device_id, prod_id_hash);
- for (i=0; i<4; i++) {
- (*prod_id_hash)[i] = TO_NATIVE((*prod_id_hash)[i]);
- }
-
ADD(alias, "m", match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID,
manf_id);
ADD(alias, "c", match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID,
@@ -623,10 +621,14 @@ static void do_pcmcia_entry(struct module *mod, void *symval)
function);
ADD(alias, "pfn", match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO,
device_no);
- ADD(alias, "pa", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1, (*prod_id_hash)[0]);
- ADD(alias, "pb", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2, (*prod_id_hash)[1]);
- ADD(alias, "pc", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3, (*prod_id_hash)[2]);
- ADD(alias, "pd", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4, (*prod_id_hash)[3]);
+ ADD(alias, "pa", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1,
+ get_unaligned_native(*prod_id_hash + 0));
+ ADD(alias, "pb", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2,
+ get_unaligned_native(*prod_id_hash + 1));
+ ADD(alias, "pc", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3,
+ get_unaligned_native(*prod_id_hash + 2));
+ ADD(alias, "pd", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4,
+ get_unaligned_native(*prod_id_hash + 3));
module_alias_printf(mod, true, "pcmcia:%s", alias);
}
@@ -654,10 +656,9 @@ static void do_input(char *alias,
{
unsigned int i;
- for (i = min / BITS_PER_LONG; i < max / BITS_PER_LONG + 1; i++)
- arr[i] = TO_NATIVE(arr[i]);
- for (i = min; i < max; i++)
- if (arr[i / BITS_PER_LONG] & (1ULL << (i%BITS_PER_LONG)))
+ for (i = min; i <= max; i++)
+ if (get_unaligned_native(arr + i / BITS_PER_LONG) &
+ (1ULL << (i % BITS_PER_LONG)))
sprintf(alias + strlen(alias), "%X,*", i);
}
@@ -812,15 +813,13 @@ static void do_virtio_entry(struct module *mod, void *symval)
* Each byte of the guid will be represented by two hex characters
* in the name.
*/
-
static void do_vmbus_entry(struct module *mod, void *symval)
{
- int i;
DEF_FIELD_ADDR(symval, hv_vmbus_device_id, guid);
- char guid_name[(sizeof(*guid) + 1) * 2];
+ char guid_name[sizeof(*guid) * 2 + 1];
- for (i = 0; i < (sizeof(*guid) * 2); i += 2)
- sprintf(&guid_name[i], "%02x", TO_NATIVE((guid->b)[i/2]));
+ for (int i = 0; i < sizeof(*guid); i++)
+ sprintf(&guid_name[i * 2], "%02x", guid->b[i]);
module_alias_printf(mod, false, "vmbus:%s", guid_name);
}
@@ -1111,6 +1110,14 @@ static void do_cpu_entry(struct module *mod, void *symval)
module_alias_printf(mod, false, "cpu:type:*:feature:*%04X*", feature);
}
+/* Looks like: mcb:16zN */
+static void do_mcb_entry(struct module *mod, void *symval)
+{
+ DEF_FIELD(symval, mcb_device_id, device);
+
+ module_alias_printf(mod, false, "mcb:16z%03d", device);
+}
+
/* Looks like: mei:S:uuid:N:* */
static void do_mei_entry(struct module *mod, void *symval)
{
@@ -1221,17 +1228,12 @@ static void do_tbsvc_entry(struct module *mod, void *symval)
module_alias_printf(mod, true, "tbsvc:%s", alias);
}
-/* Looks like: typec:idNmN */
+/* Looks like: typec:idN */
static void do_typec_entry(struct module *mod, void *symval)
{
- char alias[256] = {};
-
DEF_FIELD(symval, typec_device_id, svid);
- DEF_FIELD(symval, typec_device_id, mode);
- ADD(alias, "m", mode != TYPEC_ANY_MODE, mode);
-
- module_alias_printf(mod, false, "typec:id%04X%s", svid, alias);
+ module_alias_printf(mod, false, "typec:id%04X", svid);
}
/* Looks like: tee:uuid */
@@ -1450,6 +1452,7 @@ static const struct devtable devtable[] = {
{"mipscdmm", SIZE_mips_cdmm_device_id, do_mips_cdmm_entry},
{"x86cpu", SIZE_x86_cpu_id, do_x86cpu_entry},
{"cpu", SIZE_cpu_feature, do_cpu_entry},
+ {"mcb", SIZE_mcb_device_id, do_mcb_entry},
{"mei", SIZE_mei_cl_device_id, do_mei_entry},
{"rapidio", SIZE_rio_device_id, do_rio_entry},
{"ulpi", SIZE_ulpi_device_id, do_ulpi_entry},
@@ -1483,8 +1486,8 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
{
void *symval;
char *zeros = NULL;
- const char *type, *name;
- size_t typelen;
+ const char *type, *name, *modname;
+ size_t typelen, modnamelen;
static const char *prefix = "__mod_device_table__";
/* We're looking for a section relative symbol */
@@ -1495,10 +1498,20 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
if (ELF_ST_TYPE(sym->st_info) != STT_OBJECT)
return;
- /* All our symbols are of form __mod_device_table__<type>__<name>. */
+ /* All our symbols are of form __mod_device_table__kmod_<modname>__<type>__<name>. */
if (!strstarts(symname, prefix))
return;
- type = symname + strlen(prefix);
+
+ modname = strstr(symname, "__kmod_");
+ if (!modname)
+ return;
+ modname += strlen("__kmod_");
+
+ type = strstr(modname, "__");
+ if (!type)
+ return;
+ modnamelen = type - modname;
+ type += strlen("__");
name = strstr(type, "__");
if (!name)
@@ -1524,5 +1537,21 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
}
}
+ if (mod->is_vmlinux) {
+ struct module_alias *alias;
+
+ /*
+ * If this is vmlinux, record the name of the builtin module.
+ * Traverse the linked list in the reverse order, and set the
+ * builtin_modname unless it has already been set in the
+ * previous call.
+ */
+ list_for_each_entry_reverse(alias, &mod->aliases, node) {
+ if (alias->builtin_modname)
+ break;
+ alias->builtin_modname = xstrndup(modname, modnamelen);
+ }
+ }
+
free(zeros);
}