1# SPDX-License-Identifier: GPL-2.0 2menu "Kernel hacking" 3 4source "lib/Kconfig.debug" 5 6config EARLY_PRINTK 7 bool 8 depends on ALPHA_GENERIC || ALPHA_SRM 9 default y 10 11config ALPHA_LEGACY_START_ADDRESS 12 bool "Legacy kernel start address" 13 depends on ALPHA_GENERIC 14 default n 15 ---help--- 16 The 2.4 kernel changed the kernel start address from 0x310000 17 to 0x810000 to make room for the Wildfire's larger SRM console. 18 Recent consoles on Titan and Marvel machines also require the 19 extra room. 20 21 If you're using aboot 0.7 or later, the bootloader will examine the 22 ELF headers to determine where to transfer control. Unfortunately, 23 most older bootloaders -- APB or MILO -- hardcoded the kernel start 24 address rather than examining the ELF headers, and the result is a 25 hard lockup. 26 27 Say Y if you have a broken bootloader. Say N if you do not, or if 28 you wish to run on Wildfire, Titan, or Marvel. 29 30config ALPHA_LEGACY_START_ADDRESS 31 bool 32 depends on !ALPHA_GENERIC && !ALPHA_TITAN && !ALPHA_MARVEL && !ALPHA_WILDFIRE 33 default y 34 35config MATHEMU 36 tristate "Kernel FP software completion" if DEBUG_KERNEL && !SMP 37 default y if !DEBUG_KERNEL || SMP 38 help 39 This option is required for IEEE compliant floating point arithmetic 40 on the Alpha. The only time you would ever not say Y is to say M in 41 order to debug the code. Say Y unless you know what you are doing. 42 43endmenu 44