Re: [PATCH] Tell modpost that any reference from .note* is OK

From: Sam Ravnborg
Date: Tue May 29 2007 - 17:06:56 EST


On Tue, May 29, 2007 at 01:33:20PM -0700, Jeremy Fitzhardinge wrote:
> .note* sections are ELF notes, which are typically used by external
> tools to examine the kernel image. Since this is removed from any
> runtime consideration, it's OK to reference any section from a .note*
> section.
>
> As a side-effect, this changes secref_whitelist to accept a NULL "atsym"
> pointer, allowing it to be called when "before" is NULL. This is
> needed for .note sections since they don't necessarily have any
> symbols, and it also allows the .got2 check to to be folded into the
> normal whitelist checks.

I did it a bit different. Adding .note to init_section_ref_ok +
exit_section_ref_ok is much simpler.
Next patch will move .got2 there too.

Sam

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 662deba..b824198 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -1139,6 +1139,7 @@ static int init_section_ref_ok(const char *name)
".debug",
".parainstructions",
".rodata",
+ ".note", /* ignore ELF notes - may contain anything */
NULL
};
/* part of section name */
@@ -1214,6 +1215,7 @@ static int exit_section_ref_ok(const char *name)
/* Start of section names */
const char *namelist2[] = {
".debug",
+ ".note", /* ignore ELF notes - may contain anything */
NULL
};
/* part of section name */
-
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/