Messages in this thread Patch in this message |  | | From | Andi Kleen <> | Subject | [PATCH 14/19] Kbuild, lto: Handle basic LTO in modpost | Date | Fri, 14 Feb 2014 22:21:38 +0100 |
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From: Andi Kleen <ak@linux.intel.com>
- Don't warn about LTO marker symbols. modpost runs before the linker, so the module is not necessarily LTOed yet. - Don't complain about .gnu.lto* sections
Signed-off-by: Andi Kleen <ak@linux.intel.com> --- scripts/mod/modpost.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index f91dd45..63804a1 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -623,7 +623,10 @@ static void handle_modversions(struct module *mod, struct elf_info *info, switch (sym->st_shndx) { case SHN_COMMON: - warn("\"%s\" [%s] is COMMON symbol\n", symname, mod->name); + if (!strncmp(symname, "__gnu_lto_", sizeof("__gnu_lto_")-1)) { + /* Should warn here, but modpost runs before the linker */ + } else + warn("\"%s\" [%s] is COMMON symbol\n", symname, mod->name); break; case SHN_UNDEF: /* undefined symbol */ @@ -849,6 +852,7 @@ static const char *section_white_list[] = ".xt.lit", /* xtensa */ ".arcextmap*", /* arc */ ".gnu.linkonce.arcext*", /* arc : modules */ + ".gnu.lto*", NULL }; -- 1.8.5.2
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