Merge branch 'x86-atomic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

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

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 7d0b681..bd58c8a 100644 (file)
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -174,21 +174,12 @@ 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 X86_DS_SELFTEST
-    bool "DS selftest"
-    default y
-    depends on DEBUG_KERNEL
-    depends on X86_DS
-       ---help---
-         Perform Debug Store selftests at boot time.
-         If in doubt, say "N".
-
 config HAVE_MMIOTRACE_SUPPORT
        def_bool y
 
 config X86_DECODER_SELFTEST
-     bool "x86 instruction decoder selftest"
-     depends on DEBUG_KERNEL
+       bool "x86 instruction decoder selftest"
+       depends on DEBUG_KERNEL && KPROBES
        ---help---
         Perform x86 instruction decoder selftests at build time.
         This option is useful for checking the sanity of x86 instruction
@@ -296,4 +287,18 @@ config OPTIMIZE_INLINING
 
          If unsure, say N.
 
+config DEBUG_STRICT_USER_COPY_CHECKS
+       bool "Strict copy size checks"
+       depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
+       ---help---
+         Enabling this option turns a certain set of sanity checks for user
+         copy operations into compile time failures.
+
+         The copy_from_user() etc checks are there to help test if there
+         are sufficient security checks on the length argument of
+         the copy operation, by having gcc prove that the argument is
+         within bounds.
+
+         If unsure, or if you run an older (pre 4.4) gcc, say N.
+
 endmenu