Messages in this thread Patch in this message | | | From | Rusty Russell <> | Subject | [PATCH] Table fix for module-init-tools | Date | Mon, 02 Dec 2002 12:25:20 +1100 |
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Linus, please apply,
This patch allows the new depmod to generate the USB & PCI hotplug tables. Greg Banks and I are (slowly) working on a better solution, but allows the old-style "modules.pcimap" etc. to be generated in the short term.
Rusty.
Name: Module Table Support for module-init-tools depmod Author: Rusty Russell Status: Tested on 2.5.50
D: This patch adds a "__mod_XXX_table" symbol which is an alias to the D: module table, rather than a pointer. This makes it relatively D: trivial to extract the table. Previously, it required a pointer D: dereference, which means the relocations must be applied, which is D: why the old depmod needs so much of modutils (ie. it basically D: links the whole module in order to find the table). D: D: The old depmod can still be invoked using "-F System.map" to D: generate the tables (there'll be lots of other warnings, and it D: will generate a completely bogus modules.dep, but the tables should D: be OK.)
diff -urNp --exclude TAGS -X /home/rusty/current-dontdiff --minimal linux-2.5.50/include/linux/module.h working-2.5.50-table/include/linux/module.h --- linux-2.5.50/include/linux/module.h Mon Nov 25 08:44:18 2002 +++ working-2.5.50-table/include/linux/module.h Thu Nov 28 10:59:39 2002 @@ -14,6 +14,7 @@ #include <linux/cache.h> #include <linux/kmod.h> #include <linux/elf.h> +#include <linux/stringify.h> #include <asm/module.h> #include <asm/uaccess.h> /* For struct exception_table_entry */ @@ -40,11 +40,14 @@ struct kernel_symbol #ifdef MODULE -#define MODULE_GENERIC_TABLE(gtype,name) \ -static const unsigned long __module_##gtype##_size \ - __attribute__ ((unused)) = sizeof(struct gtype##_id); \ -static const struct gtype##_id * __module_##gtype##_table \ - __attribute__ ((unused)) = name +/* For replacement modutils, use an alias not a pointer. */ +#define MODULE_GENERIC_TABLE(gtype,name) \ +static const unsigned long __module_##gtype##_size \ + __attribute__ ((unused)) = sizeof(struct gtype##_id); \ +static const struct gtype##_id * __module_##gtype##_table \ + __attribute__ ((unused)) = name; \ +extern const struct gtype##_id __mod_##gtype##_table \ + __attribute__ ((unused, alias(__stringify(name)))) /* This is magically filled in by the linker, but THIS_MODULE must be a constant so it works in initializers. */
-- Anyone who quotes me in their sig is an idiot. -- Rusty Russell. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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