1# SPDX-License-Identifier: GPL-2.0 2 3config DEBUG_TLB_SANITY 4 bool "Debug TLB sanity" 5 depends on DEBUG_KERNEL && MMU 6 help 7 Enable this to turn on TLB sanity check on each entry to userspace. 8 This check can spot missing TLB invalidation/wrong PTE permissions/ 9 premature page freeing. 10 11 If unsure, say N. 12 13config LD_NO_RELAX 14 bool "Disable linker relaxation" 15 default y 16 help 17 Enable this function to disable link-time optimizations. 18 The default linker behavior is to combine identical literal 19 values to reduce code size and remove unnecessary overhead from 20 assembler-generated 'longcall' sequences. 21 Enabling this option improves the link time but increases the 22 code size, and possibly execution time. 23 24config S32C1I_SELFTEST 25 bool "Perform S32C1I instruction self-test at boot" 26 default y 27 help 28 Enable this option to test S32C1I instruction behavior at boot. 29 Correct operation of this instruction requires some cooperation from hardware 30 external to the processor (such as bus bridge, bus fabric, or memory controller). 31 It is easy to make wrong hardware configuration, this test should catch it early. 32 33 Say 'N' on stable hardware. 34 35config PRINT_STACK_DEPTH 36 int "Stack depth to print" if DEBUG_KERNEL 37 default 64 38 help 39 This option allows you to set the stack depth that the kernel 40 prints in stack traces. 41 42config PRINT_USER_CODE_ON_UNHANDLED_EXCEPTION 43 bool "Dump user code around unhandled exception address" 44 help 45 Enable this option to display user code around PC of the unhandled 46 exception (starting at address aligned on 16 byte boundary). 47 This may simplify finding faulting code in the absence of other 48 debug facilities. 49