diff options
Diffstat (limited to 'scripts/mod/modpost.c')
| -rw-r--r-- | scripts/mod/modpost.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index fdf5bbfd00cd..9abcdf2e8dfe 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -1157,6 +1157,14 @@ static const struct sectioncheck *section_mismatch( * fromsec = text section * refsymname = *.constprop.* * + * Pattern 6: + * Hide section mismatch warnings for ELF local symbols. The goal + * is to eliminate false positive modpost warnings caused by + * compiler-generated ELF local symbol names such as ".LANCHOR1". + * Autogenerated symbol names bypass modpost's "Pattern 2" + * whitelisting, which relies on pattern-matching against symbol + * names to work. (One situation where gcc can autogenerate ELF + * local symbols is when "-fsection-anchors" is used.) **/ static int secref_whitelist(const struct sectioncheck *mismatch, const char *fromsec, const char *fromsym, @@ -1195,6 +1203,10 @@ static int secref_whitelist(const struct sectioncheck *mismatch, match(fromsym, optim_symbols)) return 0; + /* Check for pattern 6 */ + if (strstarts(fromsym, ".L")) + return 0; + return 1; } |