13 Dec, 2019
2 commits
-
The ORC unwinder has two tables: .orc_unwind_ip and .orc_unwind, which
need to be sorted for binary search. Previously this sorting was done
during bootup.Sort them at build time to speed up booting.
Add the ORC tables sorting in a parallel build process to speed up the build.
[ mingo: Rewrote the changelog and fixed some comments. ]
Suggested-by: Andy Lutomirski
Suggested-by: Peter Zijlstra
Reported-by: kbuild test robot
Signed-off-by: Shile Zhang
Acked-by: Peter Zijlstra (Intel)
Cc: Josh Poimboeuf
Cc: Masahiro Yamada
Cc: Michal Marek
Cc: linux-kbuild@vger.kernel.org
Link: https://lkml.kernel.org/r/20191204004633.88660-7-shile.zhang@linux.alibaba.com
Signed-off-by: Ingo Molnar -
Use a more generic name for additional table sorting usecases,
such as the upcoming ORC table sorting feature. This tool is
not tied to exception table sorting anymore.No functional changes intended.
[ mingo: Rewrote the changelog. ]
Signed-off-by: Shile Zhang
Acked-by: Peter Zijlstra (Intel)
Cc: Josh Poimboeuf
Cc: Masahiro Yamada
Cc: Michal Marek
Cc: linux-kbuild@vger.kernel.org
Link: https://lkml.kernel.org/r/20191204004633.88660-6-shile.zhang@linux.alibaba.com
Signed-off-by: Ingo Molnar
