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authorMasahiro Yamada <masahiroy@kernel.org>2021-02-26 15:25:48 +0900
committerMasahiro Yamada <masahiroy@kernel.org>2021-02-28 15:19:21 +0900
commita6aaeb841198016083663ae56c568de4e065d090 (patch)
tree12339f936fba7c5c2c152ce3dcd0dd427cfaeee4 /init
parentda83616bcd3fa84233f6e37e2cf8cbfa979c6927 (diff)
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kbuild: fix UNUSED_KSYMS_WHITELIST for Clang LTO
Commit fbe078d397b4 ("kbuild: lto: add a default list of used symbols") does not work as expected if the .config file has already specified CONFIG_UNUSED_KSYMS_WHITELIST="my/own/white/list" before enabling CONFIG_LTO_CLANG. So, the user-supplied whitelist and LTO-specific white list must be independent of each other. I refactored the shell script so CONFIG_MODVERSIONS and CONFIG_CLANG_LTO handle whitelists in the same way. Fixes: fbe078d397b4 ("kbuild: lto: add a default list of used symbols") Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Diffstat (limited to 'init')
-rw-r--r--init/Kconfig1
1 files changed, 0 insertions, 1 deletions
diff --git a/init/Kconfig b/init/Kconfig
index efdc35abccb6..22946fe5ded9 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -2283,7 +2283,6 @@ config TRIM_UNUSED_KSYMS
config UNUSED_KSYMS_WHITELIST
string "Whitelist of symbols to keep in ksymtab"
depends on TRIM_UNUSED_KSYMS
- default "scripts/lto-used-symbollist.txt" if LTO_CLANG
help
By default, all unused exported symbols will be un-exported from the
build when TRIM_UNUSED_KSYMS is selected.