1 choice !! 1 # SPDX-License-Identifier: GPL-2.0 2 prompt "Choose kernel unwinder" << 3 default UNWINDER_PROLOGUE if KALLSYMS << 4 help << 5 This determines which method will be << 6 traces for panics, oopses, bugs, war << 7 lockdep, and more. << 8 << 9 config UNWINDER_GUESS << 10 bool "Guess unwinder" << 11 help << 12 This option enables the "guess" unwi << 13 traces. It scans the stack and repo << 14 finds. Some of the addresses it rep << 15 << 16 While this option often produces fal << 17 useful in many cases. << 18 2 19 config UNWINDER_PROLOGUE !! 3 config DEBUG_DCFLUSH 20 bool "Prologue unwinder" !! 4 bool "D-cache flush debugging" 21 depends on KALLSYMS !! 5 depends on SPARC64 && DEBUG_KERNEL >> 6 >> 7 config MCOUNT >> 8 bool >> 9 depends on SPARC64 >> 10 depends on FUNCTION_TRACER >> 11 select ARCH_WANT_FRAME_POINTERS >> 12 select FRAME_POINTER >> 13 default y >> 14 >> 15 config HAVE_HARDLOCKUP_DETECTOR_SPARC64 >> 16 bool >> 17 depends on HAVE_NMI >> 18 select HARDLOCKUP_DETECTOR_SPARC64 22 help 19 help 23 This option enables the "prologue" u !! 20 Sparc64 hardlockup detector is the last one developed before adding 24 traces. It unwind the stack frame b !! 21 the common infrastructure for handling hardlockup detectors. It is 25 information is needed, at least the !! 22 always built. It does _not_ use the common command line parameters 26 Some of the addresses it reports may !! 23 and sysctl interface, except for /proc/sys/kernel/nmi_watchdog. 27 Guess unwinder). !! 24 28 !! 25 config HARDLOCKUP_DETECTOR_SPARC64 29 config UNWINDER_ORC !! 26 bool 30 bool "ORC unwinder" !! 27 depends on HAVE_HARDLOCKUP_DETECTOR_SPARC64 31 depends on HAVE_OBJTOOL << 32 select OBJTOOL << 33 help << 34 This option enables the ORC (Oops Re << 35 unwinding kernel stack traces. It u << 36 a simplified version of the DWARF Ca << 37 << 38 Enabling this option will increase t << 39 by roughly 2-4MB, depending on your << 40 << 41 endchoice <<
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