| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | menu "Kernel hacking" |
| 2 | |
| 3 | source "lib/Kconfig.debug" |
| 4 | |
| 5 | config EARLY_PRINTK |
| 6 | bool |
| 7 | depends on ALPHA_GENERIC || ALPHA_SRM |
| 8 | default y |
| 9 | |
| 10 | config 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 | |
| 19 | config DEBUG_SEMAPHORE |
| 20 | bool "Semaphore debugging" |
| 21 | depends on DEBUG_KERNEL |
| 22 | help |
| 23 | If you say Y here then semaphore processing will issue lots of |
| 24 | verbose debugging messages. If you suspect a semaphore problem or a |
| 25 | kernel hacker asks for this option then say Y. Otherwise say N. |
| 26 | |
| 27 | config ALPHA_LEGACY_START_ADDRESS |
| 28 | bool "Legacy kernel start address" |
| 29 | depends on ALPHA_GENERIC |
| 30 | default n |
| 31 | ---help--- |
| 32 | The 2.4 kernel changed the kernel start address from 0x310000 |
| 33 | to 0x810000 to make room for the Wildfire's larger SRM console. |
| 34 | Recent consoles on Titan and Marvel machines also require the |
| 35 | extra room. |
| 36 | |
| 37 | If you're using aboot 0.7 or later, the bootloader will examine the |
| 38 | ELF headers to determine where to transfer control. Unfortunately, |
| 39 | most older bootloaders -- APB or MILO -- hardcoded the kernel start |
| 40 | address rather than examining the ELF headers, and the result is a |
| 41 | hard lockup. |
| 42 | |
| 43 | Say Y if you have a broken bootloader. Say N if you do not, or if |
| 44 | you wish to run on Wildfire, Titan, or Marvel. |
| 45 | |
| 46 | config ALPHA_LEGACY_START_ADDRESS |
| 47 | bool |
| 48 | depends on !ALPHA_GENERIC && !ALPHA_TITAN && !ALPHA_MARVEL && !ALPHA_WILDFIRE |
| 49 | default y |
| 50 | |
| 51 | config MATHEMU |
| 52 | tristate "Kernel FP software completion" if DEBUG_KERNEL && !SMP |
| 53 | default y if !DEBUG_KERNEL || SMP |
| 54 | help |
| 55 | This option is required for IEEE compliant floating point arithmetic |
| 56 | on the Alpha. The only time you would ever not say Y is to say M in |
| 57 | order to debug the code. Say Y unless you know what you are doing. |
| 58 | |
| 59 | endmenu |