Commit c5c3439a authored Apr 16, 2015 by Quentin Casasnovas Committed by Rusty Russell Apr 22, 2015

modpost: do not try to match the SHT_NUL section.



Trying to match the SHT_NUL section isn't useful and causes build failures
on parisc and mn10300 since the addition of section strict white-listing
and __ex_table sanitizing.

Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Fixes: 050e57fd ("modpost: add strict white-listing when referencing....")
Fixes: 52dc0595 ("modpost: handle relocations mismatch in __ex_table.")
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

parent e84048aa

scripts/mod/modpost.c

+9 −0

Original line number	Diff line number	Diff line
		@@ -1064,6 +1064,15 @@ static const struct sectioncheck *section_mismatch(
		int elems = sizeof(sectioncheck) / sizeof(struct sectioncheck);
		const struct sectioncheck *check = &sectioncheck[0];

		/*
		* The target section could be the SHT_NUL section when we're
		* handling relocations to un-resolved symbols, trying to match it
		* doesn't make much sense and causes build failures on parisc and
		* mn10300 architectures.
		*/
		if (*tosec == '\0')
		return NULL;

		for (i = 0; i < elems; i++) {
		if (match(fromsec, check->fromsec)) {
		if (check->bad_tosec[0] && match(tosec, check->bad_tosec))

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