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 192ee01..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"
@@ -66,7 +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.