[PATCH] Change dash2underscore() return value to char

[pandora-kernel.git] / lib / Kconfig.debug

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 156822e..6e8a60f 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -9,15 +9,9 @@ config PRINTK_TIME
          in kernel startup.
 
 
-config DEBUG_KERNEL
-       bool "Kernel debugging"
-       help
-         Say Y here if you are developing drivers or trying to debug and
-         identify kernel problems.
-
 config MAGIC_SYSRQ
        bool "Magic SysRq key"
-       depends on DEBUG_KERNEL && !UML
+       depends on !UML
        help
          If you say Y here, you will have some control over the system even
          if the system crashes for example during kernel debugging (e.g., you
@@ -29,10 +23,16 @@ config MAGIC_SYSRQ
          keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
          unless you really know what this hack does.
 
+config DEBUG_KERNEL
+       bool "Kernel debugging"
+       help
+         Say Y here if you are developing drivers or trying to debug and
+         identify kernel problems.
+
 config LOG_BUF_SHIFT
        int "Kernel log buffer size (16 => 64KB, 17 => 128KB)" if DEBUG_KERNEL
        range 12 21
-       default 17 if ARCH_S390
+       default 17 if S390
        default 16 if X86_NUMAQ || IA64
        default 15 if SMP
        default 14
@@ -78,13 +78,17 @@ config SCHEDSTATS
          this adds.
 
 config DEBUG_SLAB
-       bool "Debug memory allocations"
-       depends on DEBUG_KERNEL
+       bool "Debug slab memory allocations"
+       depends on DEBUG_KERNEL && SLAB
        help
          Say Y here to have the kernel do limited verification on memory
          allocation as well as poisoning memory on free to catch use of freed
          memory. This can make kmalloc/kfree-intensive workloads much slower.
 
+config DEBUG_SLAB_LEAK
+       bool "Memory leak debugging"
+       depends on DEBUG_SLAB
+
 config DEBUG_PREEMPT
        bool "Debug preemptible kernel"
        depends on DEBUG_KERNEL && PREEMPT
@@ -95,6 +99,14 @@ config DEBUG_PREEMPT
          if kernel code uses it in a preemption-unsafe way. Also, the kernel
          will detect preemption count underflows.
 
+config DEBUG_MUTEXES
+       bool "Mutex debugging, deadlock detection"
+       default y
+       depends on DEBUG_KERNEL
+       help
+        This allows mutex semantics violations and mutex related deadlocks
+        (lockups) to be detected and reported automatically.
+
 config DEBUG_SPINLOCK
        bool "Spinlock debugging"
        depends on DEBUG_KERNEL
@@ -160,7 +172,7 @@ config DEBUG_IOREMAP
 
 config DEBUG_FS
        bool "Debug Filesystem"
-       depends on DEBUG_KERNEL && SYSFS
+       depends on SYSFS
        help
          debugfs is a virtual file system that kernel developers use to put
          debugging files into.  Enable this option to be able to read and
@@ -172,7 +184,8 @@ config DEBUG_VM
        bool "Debug VM"
        depends on DEBUG_KERNEL
        help
-         Enable this to debug the virtual-memory system.
+         Enable this to turn on extended checks in the virtual-memory system
+          that may impact performance.
 
          If unsure, say N.
 
@@ -186,6 +199,30 @@ config FRAME_POINTER
          some architectures or if you use external debuggers.
          If you don't debug the kernel, you can say N.
 
+config UNWIND_INFO
+       bool "Compile the kernel with frame unwind information"
+       depends on !IA64
+       depends on !MODULES || !(MIPS || PARISC || PPC || SUPERH || SPARC64 || 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 FORCED_INLINING
+       bool "Force gcc to inline functions marked 'inline'"
+       depends on DEBUG_KERNEL
+       default y
+       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
+         do what it thinks is best, which is desirable for the gcc 3.x series of
+         compilers. The gcc 4.x series have a rewritten inlining algorithm and
+         disabling this option will generate a smaller kernel there. Hopefully
+         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.
+
 config RCU_TORTURE_TEST
        tristate "torture tests for RCU"
        depends on DEBUG_KERNEL