diff options
Diffstat (limited to 'kernel/trace/Kconfig')
| -rw-r--r-- | kernel/trace/Kconfig | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index 382628b9b759..cdf5afa87f65 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -33,6 +33,9 @@ config HAVE_DYNAMIC_FTRACE config HAVE_DYNAMIC_FTRACE_WITH_REGS bool +config HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS + bool + config HAVE_FTRACE_MCOUNT_RECORD bool help @@ -76,7 +79,7 @@ config FTRACE_NMI_ENTER config EVENT_TRACING select CONTEXT_SWITCH_TRACER - select GLOB + select GLOB bool config CONTEXT_SWITCH_TRACER @@ -307,7 +310,7 @@ config TRACER_SNAPSHOT cat snapshot config TRACER_SNAPSHOT_PER_CPU_SWAP - bool "Allow snapshot to swap per CPU" + bool "Allow snapshot to swap per CPU" depends on TRACER_SNAPSHOT select RING_BUFFER_ALLOW_SWAP help @@ -556,6 +559,11 @@ config DYNAMIC_FTRACE_WITH_REGS depends on DYNAMIC_FTRACE depends on HAVE_DYNAMIC_FTRACE_WITH_REGS +config DYNAMIC_FTRACE_WITH_DIRECT_CALLS + def_bool y + depends on DYNAMIC_FTRACE + depends on HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS + config FUNCTION_PROFILER bool "Kernel function profiler" depends on FUNCTION_TRACER @@ -674,7 +682,7 @@ config MMIOTRACE_TEST Say N, unless you absolutely know what you are doing. config TRACEPOINT_BENCHMARK - bool "Add tracepoint that benchmarks tracepoints" + bool "Add tracepoint that benchmarks tracepoints" help This option creates the tracepoint "benchmark:benchmark_event". When the tracepoint is enabled, it kicks off a kernel thread that @@ -723,7 +731,7 @@ config RING_BUFFER_STARTUP_TEST bool "Ring buffer startup self test" depends on RING_BUFFER help - Run a simple self test on the ring buffer on boot up. Late in the + Run a simple self test on the ring buffer on boot up. Late in the kernel boot sequence, the test will start that kicks off a thread per cpu. Each thread will write various size events into the ring buffer. Another thread is created to send IPIs @@ -751,9 +759,9 @@ config PREEMPTIRQ_DELAY_TEST configurable delay. The module busy waits for the duration of the critical section. - For example, the following invocation forces a one-time irq-disabled - critical section for 500us: - modprobe preemptirq_delay_test test_mode=irq delay=500000 + For example, the following invocation generates a burst of three + irq-disabled critical sections for 500us: + modprobe preemptirq_delay_test test_mode=irq delay=500 burst_size=3 If unsure, say N @@ -762,7 +770,7 @@ config TRACE_EVAL_MAP_FILE depends on TRACING help The "print fmt" of the trace events will show the enum/sizeof names - instead of their values. This can cause problems for user space tools + instead of their values. This can cause problems for user space tools that use this string to parse the raw data as user space does not know how to convert the string to its value. @@ -783,7 +791,7 @@ config TRACE_EVAL_MAP_FILE they are needed for the "eval_map" file. Enabling this option will increase the memory footprint of the running kernel. - If unsure, say N + If unsure, say N. config GCOV_PROFILE_FTRACE bool "Enable GCOV profiling on ftrace subsystem" |