[PATCH] uml: split CONFIG_FRAME_POINTER from DEBUG_INFO

Until now, FRAME_POINTER was set = DEBUG_INFO for UML.  Change it to be the
default way, so that it can be enabled alone (for instance to get better
backtraces on crashes).  The call-trace dumper which uses the frame pointer is
not yet in, I'm going to introduce it in a separate patch.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/arch/um/Kconfig.debug b/arch/um/Kconfig.debug
index b89989d..bd41e42 100644 (file)
--- a/arch/um/Kconfig.debug
+++ b/arch/um/Kconfig.debug
@@ -2,10 +2,6 @@ menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
 
-config FRAME_POINTER
-       bool
-       default y if DEBUG_INFO
-
 config PT_PROXY
        bool "Enable ptrace proxy"
        depends on XTERM_CHAN && DEBUG_INFO && MODE_TT

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index ac23847..0c42129 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -151,7 +151,8 @@ config DEBUG_FS
 
 config FRAME_POINTER
        bool "Compile the kernel with frame pointers"
-       depends on DEBUG_KERNEL && ((X86 && !X86_64) || CRIS || M68K || M68KNOMMU || FRV)
+       depends on DEBUG_KERNEL && ((X86 && !X86_64) || CRIS || M68K || M68KNOMMU || FRV || UML)
+       default y if DEBUG_INFO && UML
        help
          If you say Y here the resulting kernel image will be slightly larger
          and slower, but it will give very useful debugging information.