Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | menu "Kernel hacking" |
| 3 | |
| 4 | source "lib/Kconfig.debug" |
| 5 | |
| 6 | config EARLY_PRINTK |
| 7 | bool |
| 8 | depends on ALPHA_GENERIC || ALPHA_SRM |
| 9 | default y |
| 10 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
| 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 | |
| 43 | endmenu |