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| author | Masahiro Yamada <masahiroy@kernel.org> | 2021-02-26 07:25:48 +0100 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2021-02-28 07:19:21 +0100 |
| commit | a6aaeb841198016083663ae56c568de4e065d090 (patch) | |
| tree | 12339f936fba7c5c2c152ce3dcd0dd427cfaeee4 /init/Kconfig | |
| parent | kbuild: lto: add _mcount to list of used symbols (diff) | |
| download | linux-a6aaeb841198016083663ae56c568de4e065d090.tar.xz linux-a6aaeb841198016083663ae56c568de4e065d090.zip | |
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/Kconfig')
| -rw-r--r-- | init/Kconfig | 1 |
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. |