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Linus Torvalds1da177e2005-04-16 15:20:36 -07001menu "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 DEBUG_RWLOCK
11 bool "Read-write spinlock debugging"
12 depends on DEBUG_KERNEL
13 help
14 If you say Y here then read-write lock processing will count how many
15 times it has tried to get the lock and issue an error message after
16 too many attempts. If you suspect a rwlock problem or a kernel
17 hacker asks for this option then say Y. Otherwise say N.
18
Linus Torvalds1da177e2005-04-16 15:20:36 -070019config ALPHA_LEGACY_START_ADDRESS
20 bool "Legacy kernel start address"
21 depends on ALPHA_GENERIC
22 default n
23 ---help---
24 The 2.4 kernel changed the kernel start address from 0x310000
25 to 0x810000 to make room for the Wildfire's larger SRM console.
26 Recent consoles on Titan and Marvel machines also require the
27 extra room.
28
29 If you're using aboot 0.7 or later, the bootloader will examine the
30 ELF headers to determine where to transfer control. Unfortunately,
31 most older bootloaders -- APB or MILO -- hardcoded the kernel start
32 address rather than examining the ELF headers, and the result is a
33 hard lockup.
34
35 Say Y if you have a broken bootloader. Say N if you do not, or if
36 you wish to run on Wildfire, Titan, or Marvel.
37
38config ALPHA_LEGACY_START_ADDRESS
39 bool
40 depends on !ALPHA_GENERIC && !ALPHA_TITAN && !ALPHA_MARVEL && !ALPHA_WILDFIRE
41 default y
42
43config MATHEMU
44 tristate "Kernel FP software completion" if DEBUG_KERNEL && !SMP
45 default y if !DEBUG_KERNEL || SMP
46 help
47 This option is required for IEEE compliant floating point arithmetic
48 on the Alpha. The only time you would ever not say Y is to say M in
49 order to debug the code. Say Y unless you know what you are doing.
50
51endmenu