vsprintf.c: Reduce sizeof struct printf_spec from 24 to 8 bytes

[safe/jmp/linux-2.6] / lib / Kconfig.debug

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index d57b12f..b520ec1 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -50,6 +50,14 @@ config MAGIC_SYSRQ
          keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
          unless you really know what this hack does.
 
+config STRIP_ASM_SYMS
+       bool "Strip assembler-generated symbols during link"
+       default n
+       help
+         Strip internal assembler-generated symbols during a link (symbols
+         that look like '.Lxxx') so they don't pollute the output of
+         get_wchan() and suchlike.
+
 config UNUSED_SYMBOLS
        bool "Enable unused/obsolete exported symbols"
        default y if X86
@@ -97,7 +105,7 @@ config DEBUG_SECTION_MISMATCH
        bool "Enable full Section mismatch analysis"
        depends on UNDEFINED
        # This option is on purpose disabled for now.
-       # It will be enabled when we are down to a resonable number
+       # It will be enabled when we are down to a reasonable number
        # of section mismatch warnings (< 10 for an allyesconfig build)
        help
          The section mismatch analysis checks if there are illegal
@@ -290,6 +298,14 @@ config DEBUG_OBJECTS_TIMERS
          timer routines to track the life time of timer objects and
          validate the timer operations.
 
+config DEBUG_OBJECTS_WORK
+       bool "Debug work objects"
+       depends on DEBUG_OBJECTS
+       help
+         If you say Y here, additional code will be inserted into the
+         work queue routines to track the life time of work objects and
+         validate the work operations.
+
 config DEBUG_OBJECTS_ENABLE_DEFAULT
        int "debug_objects bootup default value (0-1)"
         range 0 1
@@ -338,11 +354,13 @@ config SLUB_STATS
 
 config DEBUG_KMEMLEAK
        bool "Kernel memory leak detector"
-       depends on DEBUG_KERNEL && EXPERIMENTAL && (X86 || ARM || PPC) && \
-               !MEMORY_HOTPLUG
+       depends on DEBUG_KERNEL && EXPERIMENTAL && !MEMORY_HOTPLUG && \
+               (X86 || ARM || PPC || S390 || SUPERH)
+
        select DEBUG_FS if SYSFS
        select STACKTRACE if STACKTRACE_SUPPORT
        select KALLSYMS
+       select CRC32
        help
          Say Y here if you want to enable the memory leak
          detector. The memory allocation/freeing is traced in a way
@@ -362,7 +380,7 @@ config DEBUG_KMEMLEAK
 config DEBUG_KMEMLEAK_EARLY_LOG_SIZE
        int "Maximum kmemleak early log entries"
        depends on DEBUG_KMEMLEAK
-       range 200 2000
+       range 200 40000
        default 400
        help
          Kmemleak must track all the memory allocations to avoid
@@ -383,7 +401,7 @@ config DEBUG_KMEMLEAK_TEST
 
 config DEBUG_PREEMPT
        bool "Debug preemptible kernel"
-       depends on DEBUG_KERNEL && PREEMPT && (TRACE_IRQFLAGS_SUPPORT || PPC64)
+       depends on DEBUG_KERNEL && PREEMPT && TRACE_IRQFLAGS_SUPPORT
        default y
        help
          If you say Y here then the kernel will use a debug variant of the
@@ -481,6 +499,18 @@ config PROVE_LOCKING
 
         For more details, see Documentation/lockdep-design.txt.
 
+config PROVE_RCU
+       bool "RCU debugging: prove RCU correctness"
+       depends on PROVE_LOCKING
+       default n
+       help
+        This feature enables lockdep extensions that check for correct
+        use of RCU APIs.  This is currently under development.  Say Y
+        if you want to debug RCU usage or help work on the PROVE_RCU
+        feature.
+
+        Say N if you are unsure.
+
 config LOCKDEP
        bool
        depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
@@ -558,7 +588,7 @@ config DEBUG_BUGVERBOSE
        depends on BUG
        depends on ARM || AVR32 || M32R || M68K || SPARC32 || SPARC64 || \
                   FRV || SUPERH || GENERIC_BUG || BLACKFIN || MN10300
-       default !EMBEDDED
+       default y
        help
          Say Y here to make BUG() panics output the file name and line number
          of the BUG call as well as the EIP and oops trace.  This aids
@@ -741,16 +771,28 @@ config RCU_TORTURE_TEST_RUNNABLE
 config RCU_CPU_STALL_DETECTOR
        bool "Check for stalled CPUs delaying RCU grace periods"
        depends on TREE_RCU || TREE_PREEMPT_RCU
-       default n
+       default y
        help
          This option causes RCU to printk information on which
          CPUs are delaying the current grace period, but only when
          the grace period extends for excessive time periods.
 
-         Say Y if you want RCU to perform such checks.
+         Say N if you want to disable such checks.
+
+         Say Y if you are unsure.
+
+config RCU_CPU_STALL_VERBOSE
+       bool "Print additional per-task information for RCU_CPU_STALL_DETECTOR"
+       depends on RCU_CPU_STALL_DETECTOR && TREE_PREEMPT_RCU
+       default n
+       help
+         This option causes RCU to printk detailed per-task information
+         for any tasks that are stalling the current RCU grace period.
 
          Say N if you are unsure.
 
+         Say Y if you want to enable such checks.
+
 config KPROBES_SANITY_TEST
        bool "Kprobes sanity tests"
        depends on DEBUG_KERNEL
@@ -822,8 +864,7 @@ config DEBUG_FORCE_WEAK_PER_CPU
 
 config LKDTM
        tristate "Linux Kernel Dump Test Tool Module"
-       depends on DEBUG_KERNEL
-       depends on KPROBES
+       depends on DEBUG_FS
        depends on BLOCK
        default n
        help
@@ -834,7 +875,7 @@ config LKDTM
        called lkdtm.
 
        Documentation on how to use the module can be found in
-       drivers/misc/lkdtm.c
+       Documentation/fault-injection/provoke-crashes.txt
 
 config FAULT_INJECTION
        bool "Fault-injection framework"
@@ -903,7 +944,7 @@ config LATENCYTOP
 
 config SYSCTL_SYSCALL_CHECK
        bool "Sysctl checks"
-       depends on SYSCTL_SYSCALL
+       depends on SYSCTL
        ---help---
          sys_sysctl uses binary paths that have been found challenging
          to properly maintain and use. This enables checks that help