>From 2e9abac9cbde18af48951c54d52c9c515f9883a7 Mon Sep 17 00:00:00 2001 From: Quentin Casasnovas Date: Wed, 15 Apr 2015 22:39:50 +0200 Subject: [PATCH] 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 Reported-by: Guenter Roeck CC: Rusty Russell Fixes: 050e57fd5936 ("modpost: add strict white-listing when referencing....") Fixes: 52dc0595d540 ("modpost: handle relocations mismatch in __ex_table.") --- scripts/mod/modpost.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index fd94977..45e4027 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -1064,6 +1064,15 @@ static const struct sectioncheck *section_mismatch( int elems = sizeof(sectioncheck) / sizeof(struct sectioncheck); const struct sectioncheck *check = §ioncheck[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)) -- 2.0.5