arch/alpha/Kconfig.debug

   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