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authorCatalin Marinas <catalin.marinas@arm.com>2009-06-11 08:24:13 -0400
committerCatalin Marinas <catalin.marinas@arm.com>2009-06-11 12:04:18 -0400
commit3bba00d7bdd57cb7aa739b751fa0a1fbbb04dc18 (patch)
treee4a8634757a489f9a5c28d14dcb7d3f7e00fe348 /lib/Kconfig.debug
parent2e1483c995bbd0fa6cbd055ad76088a520799ba4 (diff)
kmemleak: Enable the building of the memory leak detector
This patch adds the Kconfig.debug and Makefile entries needed for building kmemleak into the kernel. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'lib/Kconfig.debug')
-rw-r--r--lib/Kconfig.debug22
1 files changed, 22 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 6cdcf38f2da9..5cc3506574e9 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -336,6 +336,28 @@ config SLUB_STATS
336 out which slabs are relevant to a particular load. 336 out which slabs are relevant to a particular load.
337 Try running: slabinfo -DA 337 Try running: slabinfo -DA
338 338
339config DEBUG_KMEMLEAK
340 bool "Kernel memory leak detector"
341 depends on DEBUG_KERNEL && EXPERIMENTAL && (X86 || ARM) && \
342 !MEMORY_HOTPLUG
343 select DEBUG_SLAB if SLAB
344 select SLUB_DEBUG if SLUB
345 select DEBUG_FS if SYSFS
346 select STACKTRACE if STACKTRACE_SUPPORT
347 select KALLSYMS
348 help
349 Say Y here if you want to enable the memory leak
350 detector. The memory allocation/freeing is traced in a way
351 similar to the Boehm's conservative garbage collector, the
352 difference being that the orphan objects are not freed but
353 only shown in /sys/kernel/debug/kmemleak. Enabling this
354 feature will introduce an overhead to memory
355 allocations. See Documentation/kmemleak.txt for more
356 details.
357
358 In order to access the kmemleak file, debugfs needs to be
359 mounted (usually at /sys/kernel/debug).
360
339config DEBUG_PREEMPT 361config DEBUG_PREEMPT
340 bool "Debug preemptible kernel" 362 bool "Debug preemptible kernel"
341 depends on DEBUG_KERNEL && PREEMPT && (TRACE_IRQFLAGS_SUPPORT || PPC64) 363 depends on DEBUG_KERNEL && PREEMPT && (TRACE_IRQFLAGS_SUPPORT || PPC64)