diff options
Diffstat (limited to 'lib/Kconfig.debug')
| -rw-r--r-- | lib/Kconfig.debug | 43 |
1 files changed, 21 insertions, 22 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 79afd00bbe5f..da95e10cfd70 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -86,23 +86,6 @@ config DEBUG_SHIRQ Drivers ought to be able to handle interrupts coming in at those points; some don't and need to be caught. -config LOG_BUF_SHIFT - int "Kernel log buffer size (16 => 64KB, 17 => 128KB)" if DEBUG_KERNEL - range 12 21 - default 17 if S390 || LOCKDEP - default 16 if X86_NUMAQ || IA64 - default 15 if SMP - default 14 - help - Select kernel log buffer size as a power of 2. - Defaults and Examples: - 17 => 128 KB for S/390 - 16 => 64 KB for x86 NUMAQ or IA-64 - 15 => 32 KB for SMP - 14 => 16 KB for uniprocessor - 13 => 8 KB - 12 => 4 KB - config DETECT_SOFTLOCKUP bool "Detect Soft Lockups" depends on DEBUG_KERNEL && !S390 @@ -143,7 +126,10 @@ config TIMER_STATS reprogrammed. The statistics can be read from /proc/timer_stats. The statistics collection is started by writing 1 to /proc/timer_stats, writing 0 stops it. This feature is useful to collect information - about timer usage patterns in kernel and userspace. + about timer usage patterns in kernel and userspace. This feature + is lightweight if enabled in the kernel config but not activated + (it defaults to deactivated on bootup and will only be activated + if some application like powertop activates it explicitly). config DEBUG_SLAB bool "Debug slab memory allocations" @@ -201,6 +187,16 @@ config DEBUG_MUTEXES This feature allows mutex semantics violations to be detected and reported. +config DEBUG_SEMAPHORE + bool "Semaphore debugging" + depends on DEBUG_KERNEL + depends on ALPHA || FRV + default n + help + If you say Y here then semaphore processing will issue lots of + verbose debugging messages. If you suspect a semaphore problem or a + kernel hacker asks for this option then say Y. Otherwise say N. + config DEBUG_LOCK_ALLOC bool "Lock debugging: detect incorrect freeing of live locks" depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT @@ -320,7 +316,7 @@ config DEBUG_HIGHMEM config DEBUG_BUGVERBOSE bool "Verbose BUG() reporting (adds 70K)" if DEBUG_KERNEL && EMBEDDED depends on BUG - depends on ARM || ARM26 || AVR32 || M32R || M68K || SPARC32 || SPARC64 || FRV || SUPERH || GENERIC_BUG + depends on ARM || ARM26 || AVR32 || M32R || M68K || SPARC32 || SPARC64 || FRV || SUPERH || GENERIC_BUG || BFIN default !EMBEDDED help Say Y here to make BUG() panics output the file name and line number @@ -333,6 +329,9 @@ config DEBUG_INFO help If you say Y here the resulting kernel image will include debugging info resulting in a larger kernel image. + This adds debug symbols to the kernel and modules (gcc -g), and + is needed if you intend to use kernel crashdump or binary object + tools like crash, kgdb, LKCD, gdb, etc on the kernel. Say Y here only if you plan to debug the kernel. If unsure, say N. @@ -357,7 +356,7 @@ config DEBUG_LIST config FRAME_POINTER bool "Compile the kernel with frame pointers" - depends on DEBUG_KERNEL && (X86 || CRIS || M68K || M68KNOMMU || FRV || UML || S390 || AVR32 || SUPERH) + depends on DEBUG_KERNEL && (X86 || CRIS || M68K || M68KNOMMU || FRV || UML || S390 || AVR32 || SUPERH || BFIN) default y if DEBUG_INFO && UML help If you say Y here the resulting kernel image will be slightly larger @@ -382,14 +381,13 @@ config FORCED_INLINING config RCU_TORTURE_TEST tristate "torture tests for RCU" depends on DEBUG_KERNEL + depends on m default n help This option provides a kernel module that runs torture tests on the RCU infrastructure. The kernel module may be built after the fact on the running kernel to be tested, if desired. - Say Y here if you want RCU torture tests to start automatically - 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. @@ -442,6 +440,7 @@ config FAULT_INJECTION_DEBUG_FS config FAULT_INJECTION_STACKTRACE_FILTER bool "stacktrace filter for fault-injection capabilities" depends on FAULT_INJECTION_DEBUG_FS && STACKTRACE_SUPPORT + depends on !X86_64 select STACKTRACE select FRAME_POINTER help |