Merge branch 'for-2.6.30' into for-2.6.31

[pandora-kernel.git] / arch / arm / Kconfig.debug

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 40c5eb1..a71fd94 100644 (file)
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -2,18 +2,29 @@ menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
 
-# RMK wants arm kernels compiled with frame pointers so hardwire this to y.
+# RMK wants arm kernels compiled with frame pointers or stack unwinding.
 # If you know what you are doing and are willing to live without stack
 # traces, you can get a slightly smaller kernel by setting this option to
 # n, but then RMK will have to kill you ;).
 config FRAME_POINTER
        bool
-       default y
+       default y if !ARM_UNWIND
        help
          If you say N here, the resulting kernel will be slightly smaller and
-         faster. However, when a problem occurs with the kernel, the
-         information that is reported is severely limited. Most people
-         should say Y here.
+         faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled,
+         when a problem occurs with the kernel, the information that is
+         reported is severely limited.
+
+config ARM_UNWIND
+       bool "Enable stack unwinding support"
+       depends on AEABI && EXPERIMENTAL
+       default y
+       help
+         This option enables stack unwinding support in the kernel
+         using the information automatically generated by the
+         compiler. The resulting kernel image is slightly bigger but
+         the performance is not affected. Currently, this feature
+         only works with EABI compilers. If unsure say Y.
 
 config DEBUG_USER
        bool "Verbose user fault messages"
@@ -43,6 +54,12 @@ config DEBUG_ERRORS
          you are concerned with the code size or don't want to see these
          messages.
 
+config DEBUG_STACK_USAGE
+       bool "Enable stack utilization instrumentation"
+       depends on DEBUG_KERNEL
+       help
+         Enables the display of the minimum amount of free stack which each
+         task has ever had available in the sysrq-T output.
 
 # These options are only for real kernel hackers who want to get their hands dirty.
 config DEBUG_LL
@@ -60,7 +77,7 @@ config DEBUG_ICEDCC
          Say Y here if you want the debug print routines to direct their
          output to the EmbeddedICE macrocell's DCC channel using
          co-processor 14. This is known to work on the ARM9 style ICE
-         channel.
+         channel and on the XScale with the PEEDI.
 
          It does include a timeout to ensure that the system does not
          totally freeze when there is nothing connected to read.
@@ -82,24 +99,24 @@ config DEBUG_CLPS711X_UART2
          output to the second serial port on these devices.  Saying N will
          cause the debug messages to appear on the first serial port.
 
-config DEBUG_S3C2410_PORT
-       depends on DEBUG_LL && ARCH_S3C2410
-       bool "Kernel low-level debugging messages via S3C2410 UART"
+config DEBUG_S3C_PORT
+       depends on DEBUG_LL && PLAT_S3C
+       bool "Kernel low-level debugging messages via S3C UART"
        help
          Say Y here if you want debug print routines to go to one of the
-         S3C2410 internal UARTs. The chosen UART must have been configured
+         S3C internal UARTs. The chosen UART must have been configured
          before it is used.
 
-config DEBUG_S3C2410_UART
-       depends on ARCH_S3C2410
-       int "S3C2410 UART to use for low-level debug"
+config DEBUG_S3C_UART
+       depends on PLAT_S3C
+       int "S3C UART to use for low-level debug"
        default "0"
        help
-         Choice for UART for kernel low-level using S3C2410 UARTS,
+         Choice for UART for kernel low-level using S3C UARTS,
          should be between zero and two. The port must have been
          initialised by the boot-loader before use.
 
          The uncompressor code port configuration is now handled
-         by CONFIG_S3C2410_LOWLEVEL_UART_PORT.
+         by CONFIG_S3C_LOWLEVEL_UART_PORT.
 
 endmenu