powerpc: Merge Kconfig.debug

This merges in the ppc64 bits into arch/powerpc/Kconfig.debug

Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
index 19df881bf67bf2c8b826552a65cf4df7661d58b0..0baf64ec80d022b9f7f00549014cbb0f9af26365 100644 (file)
--- a/arch/powerpc/Kconfig.debug
+++ b/arch/powerpc/Kconfig.debug
@@ -2,9 +2,42 @@ menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
 
+config DEBUG_STACKOVERFLOW
+       bool "Check for stack overflows"
+       depends on DEBUG_KERNEL && PPC64
+       help
+         This option will cause messages to be printed if free stack space
+         drops below a certain limit.
+
+config KPROBES
+       bool "Kprobes"
+       depends on DEBUG_KERNEL && PPC64
+       help
+         Kprobes allows you to trap at almost any kernel address and
+         execute a callback function.  register_kprobe() establishes
+         a probepoint and specifies the callback.  Kprobes is useful
+         for kernel debugging, non-intrusive instrumentation and testing.
+         If in doubt, say "N".
+
+config DEBUG_STACK_USAGE
+       bool "Stack utilization instrumentation"
+       depends on DEBUG_KERNEL && PPC64
+       help
+         Enables the display of the minimum amount of free stack which each
+         task has ever had available in the sysrq-T and sysrq-P debug output.
+
+         This option will slow down process creation somewhat.
+
+config DEBUGGER
+       bool "Enable debugger hooks"
+       depends on DEBUG_KERNEL
+       help
+         Include in-kernel hooks for kernel debuggers. Unless you are
+         intending to debug the kernel, say N here.
+
 config KGDB
        bool "Include kgdb kernel debugger"
-       depends on DEBUG_KERNEL && (BROKEN || PPC_GEN550 || 4xx)
+       depends on DEBUGGER && (BROKEN || PPC_GEN550 || 4xx)
        select DEBUG_INFO
        help
          Include in-kernel hooks for kgdb, the Linux kernel source level
@@ -40,14 +73,36 @@ config KGDB_CONSOLE
 
 config XMON
        bool "Include xmon kernel debugger"
-       depends on DEBUG_KERNEL
+       depends on DEBUGGER && !PPC_ISERIES
        help
          Include in-kernel hooks for the xmon kernel monitor/debugger.
          Unless you are intending to debug the kernel, say N here.
+         Make sure to enable also CONFIG_BOOTX_TEXT on Macs. Otherwise
+         nothing will appear on the screen (xmon writes directly to the
+         framebuffer memory).
+         The cmdline option 'xmon' or 'xmon=early' will drop into xmon
+         very early during boot. 'xmon=on' will just enable the xmon
+         debugger hooks.  'xmon=off' will disable the debugger hooks
+         if CONFIG_XMON_DEFAULT is set.
+
+config XMON_DEFAULT
+       bool "Enable xmon by default"
+       depends on XMON
+       help
+         xmon is normally disabled unless booted with 'xmon=on'.
+         Use 'xmon=off' to disable xmon init during runtime.
+
+config IRQSTACKS
+       bool "Use separate kernel stacks when processing interrupts"
+       depends on PPC64
+       help
+         If you say Y here the kernel will use separate kernel stacks
+         for handling hard and soft interrupts.  This can help avoid
+         overflowing the process kernel stacks.
 
 config BDI_SWITCH
        bool "Include BDI-2000 user context switcher"
-       depends on DEBUG_KERNEL
+       depends on DEBUG_KERNEL && PPC32
        help
          Include in-kernel support for the Abatron BDI2000 debugger.
          Unless you are intending to debug the kernel with one of these