[PATCH] fault-injection capability for alloc_pages()

[powerpc.git] / lib / Kconfig.debug

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 554ee68..c66b7b4 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1,6 +1,7 @@
 
 config PRINTK_TIME
        bool "Show timing information on printks"
 
 config PRINTK_TIME
        bool "Show timing information on printks"

+       depends on PRINTK

        help
          Selecting this option causes timing information to be
          included in printk output.  This allows you to measure
        help
          Selecting this option causes timing information to be
          included in printk output.  This allows you to measure


@@ -8,6 +9,13 @@ config PRINTK_TIME
          operations.  This is useful for identifying long delays
          in kernel startup.
 
          operations.  This is useful for identifying long delays
          in kernel startup.
 

+config ENABLE_MUST_CHECK
+       bool "Enable __must_check logic"
+       default y
+       help
+         Enable the __must_check logic in the kernel build.  Disable this to
+         suppress the "warning: ignoring return value of 'foo', declared with
+         attribute warn_unused_result" messages.

 
 config MAGIC_SYSRQ
        bool "Magic SysRq key"
 
 config MAGIC_SYSRQ
        bool "Magic SysRq key"


@@ -64,7 +72,7 @@ config LOG_BUF_SHIFT
 
 config DETECT_SOFTLOCKUP
        bool "Detect Soft Lockups"
 
 config DETECT_SOFTLOCKUP
        bool "Detect Soft Lockups"

-       depends on DEBUG_KERNEL
+       depends on DEBUG_KERNEL && !S390

        default y
        help
          Say Y here to enable the kernel to detect "soft lockups",
        default y
        help
          Say Y here to enable the kernel to detect "soft lockups",


@@ -218,7 +226,7 @@ config LOCKDEP
        bool
        depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
        select STACKTRACE
        bool
        depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
        select STACKTRACE

-       select FRAME_POINTER
+       select FRAME_POINTER if !X86

        select KALLSYMS
        select KALLSYMS_ALL
 
        select KALLSYMS
        select KALLSYMS_ALL
 


@@ -277,7 +285,7 @@ config DEBUG_HIGHMEM
 config DEBUG_BUGVERBOSE
        bool "Verbose BUG() reporting (adds 70K)" if DEBUG_KERNEL && EMBEDDED
        depends on BUG
 config DEBUG_BUGVERBOSE
        bool "Verbose BUG() reporting (adds 70K)" if DEBUG_KERNEL && EMBEDDED
        depends on BUG

-       depends on ARM || ARM26 || M32R || M68K || SPARC32 || SPARC64 || X86_32 || FRV
+       depends on ARM || ARM26 || AVR32 || M32R || M68K || SPARC32 || SPARC64 || FRV || SUPERH || GENERIC_BUG

        default !EMBEDDED
        help
          Say Y here to make BUG() panics output the file name and line number
        default !EMBEDDED
        help
          Say Y here to make BUG() panics output the file name and line number


@@ -313,9 +321,18 @@ config DEBUG_VM
 
          If unsure, say N.
 
 
          If unsure, say N.
 

+config DEBUG_LIST
+       bool "Debug linked list manipulation"
+       depends on DEBUG_KERNEL
+       help
+         Enable this to turn on extended checks in the linked-list
+         walking routines.
+
+         If unsure, say N.
+

 config FRAME_POINTER
        bool "Compile the kernel with frame pointers"
 config FRAME_POINTER
        bool "Compile the kernel with frame pointers"

-       depends on DEBUG_KERNEL && (X86 || CRIS || M68K || M68KNOMMU || FRV || UML || S390)
+       depends on DEBUG_KERNEL && (X86 || CRIS || M68K || M68KNOMMU || FRV || UML || S390 || AVR32 || SUPERH)

        default y if DEBUG_INFO && UML
        help
          If you say Y here the resulting kernel image will be slightly larger
        default y if DEBUG_INFO && UML
        help
          If you say Y here the resulting kernel image will be slightly larger


@@ -325,7 +342,7 @@ config FRAME_POINTER
 
 config UNWIND_INFO
        bool "Compile the kernel with frame unwind information"
 
 config UNWIND_INFO
        bool "Compile the kernel with frame unwind information"

-       depends on !IA64 && !PARISC
+       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
        depends on !MODULES || !(MIPS || PPC || SUPERH || V850)
        help
          If you say Y here the resulting kernel image will be slightly larger


@@ -355,6 +372,20 @@ config FORCED_INLINING
          become the default in the future, until then this option is there to
          test gcc for this.
 
          become the default in the future, until then this option is there to
          test gcc for this.
 

+config HEADERS_CHECK
+       bool "Run 'make headers_check' when building vmlinux"
+       depends on !UML
+       help
+         This option will extract the user-visible kernel headers whenever
+         building the kernel, and will run basic sanity checks on them to
+         ensure that exported files do not attempt to include files which
+         were not exported, etc.
+
+         If you're making modifications to header files which are
+         relevant for userspace, say 'Y', and check the headers
+         exported to $(INSTALL_HDR_PATH) (usually 'usr/include' in
+         your build tree), to make sure they're suitable.
+

 config RCU_TORTURE_TEST
        tristate "torture tests for RCU"
        depends on DEBUG_KERNEL
 config RCU_TORTURE_TEST
        tristate "torture tests for RCU"
        depends on DEBUG_KERNEL


@@ -368,3 +399,43 @@ config RCU_TORTURE_TEST
          at boot time (you probably don't).
          Say M if you want the RCU torture tests to build as a module.
          Say N if you are unsure.
          at boot time (you probably don't).
          Say M if you want the RCU torture tests to build as a module.
          Say N if you are unsure.

+
+config LKDTM
+       tristate "Linux Kernel Dump Test Tool Module"
+       depends on KPROBES
+       default n
+       help
+       This module enables testing of the different dumping mechanisms by
+       inducing system failures at predefined crash points.
+       If you don't need it: say N
+       Choose M here to compile this code as a module. The module will be
+       called lkdtm.
+
+       Documentation on how to use the module can be found in
+       drivers/misc/lkdtm.c
+
+config FAULT_INJECTION
+       bool
+
+config FAILSLAB
+       bool "Fault-injection capabilitiy for kmalloc"
+       depends on DEBUG_KERNEL
+       select FAULT_INJECTION
+       help
+         This option provides fault-injection capabilitiy for kmalloc.
+
+config FAIL_PAGE_ALLOC
+       bool "Fault-injection capabilitiy for alloc_pages()"
+       depends on DEBUG_KERNEL
+       select FAULT_INJECTION
+       help
+         This option provides fault-injection capabilitiy for alloc_pages().
+
+config FAULT_INJECTION_DEBUG_FS
+       bool "Debugfs entries for fault-injection capabilities"
+       depends on FAULT_INJECTION && SYSFS
+       select DEBUG_FS
+       help
+         This option enable configuration of fault-injection capabilities via
+         debugfs.
+