1# SPDX-License-Identifier: GPL-2.0 2menu "Kernel hacking" 3 4source "lib/Kconfig.debug" 5 6config DEBUG_TLB_SANITY 7 bool "Debug TLB sanity" 8 depends on DEBUG_KERNEL && MMU 9 help 10 Enable this to turn on TLB sanity check on each entry to userspace. 11 This check can spot missing TLB invalidation/wrong PTE permissions/ 12 premature page freeing. 13 14 If unsure, say N. 15 16config LD_NO_RELAX 17 bool "Disable linker relaxation" 18 default y 19 help 20 Enable this function to disable link-time optimizations. 21 The default linker behavior is to combine identical literal 22 values to reduce code size and remove unnecessary overhead from 23 assembler-generated 'longcall' sequences. 24 Enabling this option improves the link time but increases the 25 code size, and possibly execution time. 26 27config S32C1I_SELFTEST 28 bool "Perform S32C1I instruction self-test at boot" 29 default y 30 help 31 Enable this option to test S32C1I instruction behavior at boot. 32 Correct operation of this instruction requires some cooperation from hardware 33 external to the processor (such as bus bridge, bus fabric, or memory controller). 34 It is easy to make wrong hardware configuration, this test should catch it early. 35 36 Say 'N' on stable hardware. 37 38endmenu 39