bool "lttng-modules"
depends on BR2_LINUX_KERNEL
help
- Kernel modules for the LTTng 2.0 kernel tracing
+ Linux kernel modules for the LTTng 2.x kernel tracing
infrastructure.
- Your kernel must have CONFIG_TRACEPOINTS enabled for this
- package to build something useful. You may also want to have
- CONFIG_PERF_EVENTS to access perf event counters from
- ltt-ng. Note that system call tracing is only available on
- architectures that support CONFIG_HAVE_SYSCALL_TRACEPOINTS.
+ Make sure your target kernel has the following config
+ options enabled:
- The packaged version is compatible with kernel 2.6.38,
- 2.6.39, 3.0 and 3.1.0. See
- http://lttng.org/files/bundles/20111214/README.compatible.kernels.txt
+ * CONFIG_MODULES: loadable module support
+ * CONFIG_KALLSYMS: this is necessary until the few
+ required missing symbols are exported to GPL
+ modules from mainline
+ * CONFIG_HIGH_RES_TIMERS: needed for LTTng 2.x
+ clock source
+ * CONFIG_TRACEPOINTS: kernel tracepoint instrumentation
+ (enabled as a side-effect of any of the
+ perf/ftrace/blktrace instrumentation features)
+
+ The following kernel configuration options will
+ affect the features available from LTTng:
+
+ * CONFIG_HAVE_SYSCALL_TRACEPOINTS: system call tracing
+ * CONFIG_PERF_EVENTS: performance counters
+ * CONFIG_EVENT_TRACING: needed to allow block layer tracing
+ * CONFIG_KPROBES: dynamic probes
+ * CONFIG_KRETPROBES: dynamic function entry/return probes
+ * CONFIG_KALLSYMS_ALL: state dump of mapping between block
+ device number and name
+
+ The packaged version is compatible with Linux 2.6.38 to 3.16.
http://lttng.org
-# From http://lttng.org/files/lttng-modules/lttng-modules-2.5.1.tar.bz2.sha1
-sha1 75d9662ed3f8d7c53833663a5d89fe31c015b3ca lttng-modules-2.5.1.tar.bz2
-# From http://lttng.org/files/lttng-modules/lttng-modules-2.5.1.tar.bz2.md5
-md5 2d99bb7311ba92e82e3b675f0b8dee7d lttng-modules-2.5.1.tar.bz2
-# Locally generated
-sha256 962238175f0959ac71b97fdde144a3f76a84f63aea6b3645f94da88512bcccdb lttng-modules-2.5.1.tar.bz2
+# http://www.lttng.org/files/lttng-modules/lttng-modules-2.6.0.tar.bz2.sha1
+sha1 6402ec848e2a75250e04be35f0c49332bf37a388 lttng-modules-2.6.0.tar.bz2
#
################################################################################
-LTTNG_MODULES_VERSION = 2.5.1
+LTTNG_MODULES_VERSION = 2.6.0
LTTNG_MODULES_SITE = http://lttng.org/files/lttng-modules
LTTNG_MODULES_SOURCE = lttng-modules-$(LTTNG_MODULES_VERSION).tar.bz2
LTTNG_MODULES_LICENSE = LGPLv2.1/GPLv2 for kernel modules; MIT for lib/bitfield.h and lib/prio_heap/*