xref: /openbmc/linux/arch/alpha/Kconfig.debug (revision 827634ad)
1menu "Kernel hacking"
2
3source "lib/Kconfig.debug"
4
5config EARLY_PRINTK
6	bool
7	depends on ALPHA_GENERIC || ALPHA_SRM
8	default y
9
10config ALPHA_LEGACY_START_ADDRESS
11	bool "Legacy kernel start address"
12	depends on ALPHA_GENERIC
13	default n
14	---help---
15	  The 2.4 kernel changed the kernel start address from 0x310000
16	  to 0x810000 to make room for the Wildfire's larger SRM console.
17	  Recent consoles on Titan and Marvel machines also require the
18	  extra room.
19
20	  If you're using aboot 0.7 or later, the bootloader will examine the
21	  ELF headers to determine where to transfer control. Unfortunately,
22	  most older bootloaders -- APB or MILO -- hardcoded the kernel start
23	  address rather than examining the ELF headers, and the result is a
24	  hard lockup.
25
26	  Say Y if you have a broken bootloader.  Say N if you do not, or if
27	  you wish to run on Wildfire, Titan, or Marvel.
28
29config ALPHA_LEGACY_START_ADDRESS
30	bool
31	depends on !ALPHA_GENERIC && !ALPHA_TITAN && !ALPHA_MARVEL && !ALPHA_WILDFIRE
32	default y
33
34config MATHEMU
35	tristate "Kernel FP software completion" if DEBUG_KERNEL && !SMP
36	default y if !DEBUG_KERNEL || SMP
37	help
38	  This option is required for IEEE compliant floating point arithmetic
39	  on the Alpha. The only time you would ever not say Y is to say M in
40	  order to debug the code. Say Y unless you know what you are doing.
41
42endmenu
43