2012-01-31 20:40:01 +01:00
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config BR2_PACKAGE_LTTNG_MODULES
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bool "lttng-modules"
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depends on BR2_LINUX_KERNEL
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help
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2015-03-06 18:35:54 +01:00
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Linux kernel modules for the LTTng 2.x kernel tracing
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2012-01-31 20:40:01 +01:00
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infrastructure.
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2015-03-06 18:35:54 +01:00
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Make sure your target kernel has the following config
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options enabled:
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2012-01-31 20:40:01 +01:00
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2015-03-06 18:35:54 +01:00
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* CONFIG_MODULES: loadable module support
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* CONFIG_KALLSYMS: this is necessary until the few
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required missing symbols are exported to GPL
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modules from mainline
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* CONFIG_HIGH_RES_TIMERS: needed for LTTng 2.x
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clock source
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* CONFIG_TRACEPOINTS: kernel tracepoint instrumentation
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(enabled as a side-effect of any of the
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perf/ftrace/blktrace instrumentation features)
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The following kernel configuration options will
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affect the features available from LTTng:
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* CONFIG_HAVE_SYSCALL_TRACEPOINTS: system call tracing
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* CONFIG_PERF_EVENTS: performance counters
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* CONFIG_EVENT_TRACING: needed to allow block layer tracing
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* CONFIG_KPROBES: dynamic probes
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* CONFIG_KRETPROBES: dynamic function entry/return probes
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* CONFIG_KALLSYMS_ALL: state dump of mapping between block
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device number and name
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The packaged version is compatible with Linux 2.6.38 to 3.16.
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2012-01-31 20:40:01 +01:00
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http://lttng.org
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2013-05-11 00:59:01 +02:00
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2013-12-15 13:20:39 +01:00
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comment "lttng-modules needs a Linux kernel to be built"
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2013-05-11 00:59:01 +02:00
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depends on !BR2_LINUX_KERNEL
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