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| author | Catalin Marinas <catalin.marinas@arm.com> | 2009-06-11 13:24:13 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2009-06-11 17:04:18 +0100 |
| commit | 3bba00d7bdd57cb7aa739b751fa0a1fbbb04dc18 (patch) | |
| tree | e4a8634757a489f9a5c28d14dcb7d3f7e00fe348 /lib/Kconfig.debug | |
| parent | 2e1483c995bbd0fa6cbd055ad76088a520799ba4 (diff) | |
| download | lwn-3bba00d7bdd57cb7aa739b751fa0a1fbbb04dc18.tar.gz lwn-3bba00d7bdd57cb7aa739b751fa0a1fbbb04dc18.zip | |
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.debug | 22 |
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 out which slabs are relevant to a particular load. Try running: slabinfo -DA +config DEBUG_KMEMLEAK + bool "Kernel memory leak detector" + depends on DEBUG_KERNEL && EXPERIMENTAL && (X86 || ARM) && \ + !MEMORY_HOTPLUG + select DEBUG_SLAB if SLAB + select SLUB_DEBUG if SLUB + select DEBUG_FS if SYSFS + select STACKTRACE if STACKTRACE_SUPPORT + select KALLSYMS + help + Say Y here if you want to enable the memory leak + detector. The memory allocation/freeing is traced in a way + similar to the Boehm's conservative garbage collector, the + difference being that the orphan objects are not freed but + only shown in /sys/kernel/debug/kmemleak. Enabling this + feature will introduce an overhead to memory + allocations. See Documentation/kmemleak.txt for more + details. + + In order to access the kmemleak file, debugfs needs to be + mounted (usually at /sys/kernel/debug). + config DEBUG_PREEMPT bool "Debug preemptible kernel" depends on DEBUG_KERNEL && PREEMPT && (TRACE_IRQFLAGS_SUPPORT || PPC64) |