Messages in this thread Patch in this message | | | From | Arnd Bergmann <> | Subject | [PATCH] kbuild: lto: add _mcount to list of used symbols | Date | Thu, 25 Feb 2021 15:34:49 +0100 |
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From: Arnd Bergmann <arnd@arndb.de>
Some randconfig builds fail with undefined references to _mcount when CONFIG_TRIM_UNUSED_KSYMS is set:
ERROR: modpost: "_mcount" [drivers/tee/optee/optee.ko] undefined! ERROR: modpost: "_mcount" [drivers/fsi/fsi-occ.ko] undefined! ERROR: modpost: "_mcount" [drivers/fpga/dfl-pci.ko] undefined!
Since there is already a list of symbols that get generated at link time, add this one as well.
Fixes: fbe078d397b4 ("kbuild: lto: add a default list of used symbols") Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- scripts/lto-used-symbollist.txt | 1 + 1 file changed, 1 insertion(+)
diff --git a/scripts/lto-used-symbollist.txt b/scripts/lto-used-symbollist.txt index 38e7bb9ebaae..406ada65e926 100644 --- a/scripts/lto-used-symbollist.txt +++ b/scripts/lto-used-symbollist.txt @@ -1,5 +1,6 @@ memcpy memmove memset +_mcount __stack_chk_fail __stack_chk_guard -- 2.29.2
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