depmod: generate modules.softdep
Signed-off-by: Andreas Robinson <andr345@gmail.com>
diff --git a/depmod.c b/depmod.c
index 1724d94..07f8a99 100644
--- a/depmod.c
+++ b/depmod.c
@@ -948,6 +948,35 @@
return 1;
}
+static int output_softdeps(struct module *modules, FILE *out, char *dirname)
+{
+ struct module *i;
+ struct elf_file *file;
+ struct string_table *tbl;
+ int j;
+
+ fprintf(out, "# Soft dependencies extracted from modules themselves.\n");
+ fprintf(out, "# Copy, with a .conf extension, to /etc/modprobe.d to use "
+ "it with modprobe.\n");
+ for (i = modules; i; i = i->next) {
+ char modname[strlen(i->pathname)+1];
+
+ file = i->file;
+ filename2modname(modname, i->pathname);
+
+ /* Grab from new-style .modinfo section. */
+ tbl = file->ops->load_strings(file, ".modinfo", NULL);
+ for (j = 0; tbl && j < tbl->cnt; j++) {
+ const char *p = tbl->str[j];
+ if (strstarts(p, "softdep="))
+ fprintf(out, "softdep %s %s\n",
+ modname, p + strlen("softdep="));
+ }
+ strtbl_free(tbl);
+ }
+ return 1;
+}
+
struct depfile {
char *name;
int (*func)(struct module *, FILE *, char *dirname);
@@ -967,6 +996,7 @@
{ "modules.seriomap", output_serio_table, 1 },
{ "modules.alias", output_aliases, 0 },
{ "modules.alias.bin", output_aliases_bin, 0 },
+ { "modules.softdep", output_softdeps, 0 },
{ "modules.symbols", output_symbols, 0 },
{ "modules.symbols.bin", output_symbols_bin, 0 },
{ "modules.builtin.bin", output_builtin_bin, 0 },
