- Updated to 3.4-rc1.

[linux-flexiantxendom0-3.2.10.git] / lib / Kconfig.debug

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 6777153..edff85c 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -860,6 +860,24 @@ config FRAME_POINTER
          larger and slower, but it gives very useful debugging information
          in case of kernel bugs. (precise oopses/stacktraces/warnings)
 
+config UNWIND_INFO
+       bool "Compile the kernel with frame unwind information"
+       depends on !IA64 && !PARISC && !ARM
+       depends on !MODULES || !(MIPS || PPC || SUPERH || V850)
+       help
+         If you say Y here the resulting kernel image will be slightly larger
+         but not slower, and it will give very useful debugging information.
+         If you don't debug the kernel, you can say N, but we may not be able
+         to solve problems without frame unwind information or frame pointers.
+
+config STACK_UNWIND
+       bool "Stack unwind support"
+       depends on UNWIND_INFO
+       depends on X86
+       help
+         This enables more precise stack traces, omitting all unrelated
+         occurrences of pointers into kernel code from the dump.
+
 config BOOT_PRINTK_DELAY
        bool "Delay each boot printk message by N milliseconds"
        depends on DEBUG_KERNEL && PRINTK && GENERIC_CALIBRATE_DELAY
@@ -1122,7 +1140,8 @@ config FAULT_INJECTION_STACKTRACE_FILTER
        depends on FAULT_INJECTION_DEBUG_FS && STACKTRACE_SUPPORT
        depends on !X86_64
        select STACKTRACE
-       select FRAME_POINTER if !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND
+       select FRAME_POINTER if !PPC && !S390 && !MICROBLAZE && !X86 && !ARM_UNWIND
+       select UNWIND_INFO if X86 && !FRAME_POINTER
        help
          Provide stacktrace filter for fault-injection capabilities
 
@@ -1132,7 +1151,8 @@ config LATENCYTOP
        depends on DEBUG_KERNEL
        depends on STACKTRACE_SUPPORT
        depends on PROC_FS
-       select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND
+       select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !X86 && !ARM_UNWIND
+       select UNWIND_INFO if X86 && !FRAME_POINTER
        select KALLSYMS
        select KALLSYMS_ALL
        select STACKTRACE