Re: [PATCH] move BUG_TABLE into RODATA

From: Sam Ravnborg
Date: Tue Apr 22 2008 - 14:07:24 EST


Hi Jan.

> --- linux-2.6.25/arch/x86/kernel/vmlinux_64.lds.S 2008-04-17 04:49:44.000000000 +0200
> +++ 2.6.25-bug-table-rodata/arch/x86/kernel/vmlinux_64.lds.S 2008-03-04 11:14:13.000000000 +0100
> @@ -19,7 +19,7 @@ PHDRS {
> data PT_LOAD FLAGS(7); /* RWE */
> user PT_LOAD FLAGS(7); /* RWE */
> data.init PT_LOAD FLAGS(7); /* RWE */
> - note PT_NOTE FLAGS(4); /* R__ */
> + note PT_NOTE FLAGS(0); /* ___ */
> }

Is this intentional in this patch?


> SECTIONS
> {
> @@ -40,16 +40,14 @@ SECTIONS
> _etext = .; /* End of text section */
> } :text = 0x9090
>
> + NOTES :text :note
> +
> . = ALIGN(16); /* Exception table */
> __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
> __start___ex_table = .;
> *(__ex_table)
> __stop___ex_table = .;
> - }
> -
> - NOTES :text :note
> -
> - BUG_TABLE :text
> + } :text = 0x9090

And I do not see the 0x9090 justified.
Is this something to do with the fact that 0x90 equals NOP on x86?

Rest looks good.

Sam
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/