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 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 19config 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 52