Messages in this thread Patch in this message | | | From | Andi Kleen <> | Subject | [PATCH 14/20] Kbuild, lto: Handle basic LTO in modpost | Date | Tue, 18 Feb 2014 15:28:52 +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 | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index d0fc656..4445f59 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -623,7 +623,11 @@ 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 +853,7 @@ 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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