1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
>> 2 menu "Kernel hacking"
2 3
3 config 16KSTACKS !! 4 source "lib/Kconfig.debug"
4 bool "Use 16Kb for kernel stacks inste !! 5
>> 6 config EARLY_PRINTK
>> 7 bool
>> 8 depends on ALPHA_GENERIC || ALPHA_SRM
>> 9 default y
>> 10
>> 11 config 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
>> 30 config ALPHA_LEGACY_START_ADDRESS
>> 31 bool
>> 32 depends on !ALPHA_GENERIC && !ALPHA_TITAN && !ALPHA_MARVEL && !ALPHA_WILDFIRE
>> 33 default y
>> 34
>> 35 config MATHEMU
>> 36 tristate "Kernel FP software completion" if DEBUG_KERNEL && !SMP
>> 37 default y if !DEBUG_KERNEL || SMP
5 help 38 help
6 If you say Y here the kernel will us !! 39 This option is required for IEEE compliant floating point arithmetic
7 kernel stack attached to each proces !! 40 on the Alpha. The only time you would ever not say Y is to say M in
8 This increases the resident kernel f !! 41 order to debug the code. Say Y unless you know what you are doing.
9 threads to run on the system and als !! 42
10 on the VM subsystem for higher order !! 43 endmenu
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