From f107d073cefed8f64a0a696c4878769b9872240f Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 25 Feb 2021 15:34:49 +0100 Subject: [PATCH] UPSTREAM: kbuild: lto: add _mcount to list of used symbols 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 Signed-off-by: Masahiro Yamada (cherry picked from commit da83616bcd3fa84233f6e37e2cf8cbfa979c6927) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: I9e19b85b5ea81b1a0af3e835ed5f92c8a9c55765 --- scripts/lto-used-symbols.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/scripts/lto-used-symbols.txt b/scripts/lto-used-symbols.txt index 38e7bb9ebaae..406ada65e926 100644 --- a/scripts/lto-used-symbols.txt +++ b/scripts/lto-used-symbols.txt @@ -1,5 +1,6 @@ memcpy memmove memset +_mcount __stack_chk_fail __stack_chk_guard