x86: add a list for custom page fault handlers.

[linux-2.6] / arch / x86 / Kconfig.debug

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 5b1979a45a1ea07f6ffc8d6b563fc1ddcb64dae3..9431a8399844e1d96c235bdb6ca7821b93eea914 100644 (file)
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -118,7 +118,6 @@ config DEBUG_NX_TEST
 config 4KSTACKS
        bool "Use 4Kb for kernel stacks instead of 8Kb"
        depends on X86_32
-       default y
        help
          If you say Y here the kernel will use a 4Kb stacksize for the
          kernel stack attached to each process/thread. This facilitates
@@ -169,6 +168,14 @@ config IOMMU_LEAK
          Add a simple leak tracer to the IOMMU code. This is useful when you
          are debugging a buggy device driver that leaks IOMMU mappings.
 
+config PAGE_FAULT_HANDLERS
+       bool "Custom page fault handlers"
+       depends on DEBUG_KERNEL
+       help
+         Allow the use of custom page fault handlers. A kernel module may
+         register a function that is called on every page fault. Custom
+         handlers are used by some debugging and reverse engineering tools.
+
 #
 # IO delay types:
 #
@@ -256,11 +263,9 @@ config CPA_DEBUG
        help
          Do change_page_attr() self-tests every 30 seconds.
 
-endmenu
-
 config OPTIMIZE_INLINING
        bool "Allow gcc to uninline functions marked 'inline'"
-       default y
+       depends on BROKEN
        help
          This option determines if the kernel forces gcc to inline the functions
          developers have marked 'inline'. Doing so takes away freedom from gcc to
@@ -270,3 +275,6 @@ config OPTIMIZE_INLINING
          this algorithm is so good that allowing gcc4 to make the decision can
          become the default in the future, until then this option is there to
          test gcc for this.
+
+endmenu
+