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| author | Quentin Casasnovas <quentin.casasnovas@oracle.com> | 2015-04-16 13:16:41 +0930 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2015-04-22 17:31:33 +0930 |
| commit | c5c3439af0f9c08e253d2a703a7eb3deba7d8591 (patch) | |
| tree | bfeb5c3f00886e13dd829a6f490f4b30947bfd7c /scripts | |
| parent | e84048aa173f2403fa468cb189f101b57fece539 (diff) | |
| download | lwn-c5c3439af0f9c08e253d2a703a7eb3deba7d8591.tar.gz lwn-c5c3439af0f9c08e253d2a703a7eb3deba7d8591.zip | |
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: 050e57fd5936 ("modpost: add strict white-listing when referencing....")
Fixes: 52dc0595d540 ("modpost: handle relocations mismatch in __ex_table.")
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/mod/modpost.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index fd949770da0c..45e4027d3193 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)) |