From: Shile Zhang <[email protected]>
Add a new Kconfig BUILDTIME_ORCTABLE_SORT to control the ORC unwind
tables at build time. Select for ORC unwinder on x86_64 by default.
Signed-off-by: Shile Zhang <[email protected]>
---
arch/x86/Kconfig.debug | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index bf9cd83de777..320ff2af4837 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -335,6 +335,15 @@ config UNWINDER_GUESS
endchoice
+config BUILDTIME_ORCTABLE_SORT
+ bool "Sort ORC unwind tables at build time"
+ depends on X86_64
+ depends on UNWINDER_ORC
+ default y
+ help
+ This option enables the build-time sorting for ORC unwind tables. It
+ can help to speed up kernel boot by skip the runtime sorting.
+
config FRAME_POINTER
depends on !UNWINDER_ORC && !UNWINDER_GUESS
bool
--
2.24.0.rc2