diff options
Diffstat (limited to 'arch/x86/Kconfig.debug')
| -rw-r--r-- | arch/x86/Kconfig.debug | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug index 353ed09f5fba..dc10ec6ead6e 100644 --- a/arch/x86/Kconfig.debug +++ b/arch/x86/Kconfig.debug @@ -355,4 +355,29 @@ config PUNIT_ATOM_DEBUG The current power state can be read from /sys/kernel/debug/punit_atom/dev_power_state +config ORC_UNWINDER + bool "ORC unwinder" + depends on X86_64 + select STACK_VALIDATION + ---help--- + This option enables the ORC (Oops Rewind Capability) unwinder for + unwinding kernel stack traces. It uses a custom data format which is + a simplified version of the DWARF Call Frame Information standard. + + This unwinder is more accurate across interrupt entry frames than the + frame pointer unwinder. It can also enable a 5-10% performance + improvement across the entire kernel if CONFIG_FRAME_POINTER is + disabled. + + Enabling this option will increase the kernel's runtime memory usage + by roughly 2-4MB, depending on your kernel config. + +config FRAME_POINTER_UNWINDER + def_bool y + depends on !ORC_UNWINDER && FRAME_POINTER + +config GUESS_UNWINDER + def_bool y + depends on !ORC_UNWINDER && !FRAME_POINTER + endmenu |