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| author | Masahiro Yamada <masahiroy@kernel.org> | 2021-08-19 09:01:14 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-09-18 13:40:16 +0200 |
| commit | 1e4cfe954bd9c42242bb21292c3dd9fb7f384104 (patch) | |
| tree | b7a2570bf32be083f2a19047e1ee128dd7d32c39 /scripts/checkversion.pl | |
| parent | 981bf9b0aa1bffe3d98607e4024aa42fb8024bf0 (diff) | |
kbuild: Fix 'no symbols' warning when CONFIG_TRIM_UNUSD_KSYMS=y
[ Upstream commit 52d83df682c82055961531853c066f4f16e234ea ]
When CONFIG_TRIM_UNUSED_KSYMS is enabled, I see some warnings like this:
nm: arch/x86/entry/vdso/vdso32/note.o: no symbols
$NM (both GNU nm and llvm-nm) warns when no symbol is found in the
object. Suppress the stderr.
Fangrui Song mentioned binutils>=2.37 `nm -q` can be used to suppress
"no symbols" [1], and llvm-nm>=13.0.0 supports -q as well.
We cannot use it for now, but note it as a TODO.
[1]: https://sourceware.org/bugzilla/show_bug.cgi?id=27408
Fixes: bbda5ec671d3 ("kbuild: simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'scripts/checkversion.pl')
0 files changed, 0 insertions, 0 deletions