| /linux/tools/testing/selftests/net/tcp_ao/lib/ |
| H A D | ftrace.c | 24 void (*destructor)(struct test_ftracer *tracer);
147 static int setup_ftrace_instance(struct test_ftracer *tracer, const char *name) in setup_ftrace_instance() argument
155 tracer->instance_path = mkdtemp(tmp); in setup_ftrace_instance()
156 if (!tracer->instance_path) { in setup_ftrace_instance()
164 static void remove_ftrace_instance(struct test_ftracer *tracer) in remove_ftrace_instance() argument
166 if (rmdir(tracer->instance_path)) in remove_ftrace_instance()
168 tracer->instance_path); in remove_ftrace_instance()
169 free(tracer->instance_path); in remove_ftrace_instance()
174 struct test_ftracer *tracer = arg; in tracer_cleanup() local
176 fclose(tracer->trace_pipe); in tracer_cleanup()
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| H A D | ftrace-tcp.c | 479 static void check_free_events(struct test_ftracer *tracer) in check_free_events() argument
489 nr = tracer_get_savedlines_nr(tracer); in check_free_events()
490 lines = tracer_get_savedlines(tracer); in check_free_events()
501 static int setup_tcp_trace_events(struct test_ftracer *tracer) in setup_tcp_trace_events() argument
519 ret = setup_trace_event(tracer, event_name, filter); in setup_tcp_trace_events()
529 static void aolib_tracer_destroy(struct test_ftracer *tracer) in aolib_tracer_destroy() argument
531 check_free_events(tracer); in aolib_tracer_destroy()
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| /linux/security/yama/ |
| H A D | yama_lsm.c | 32 struct task_struct *tracer; member
141 static int yama_ptracer_add(struct task_struct *tracer, in yama_ptracer_add() argument
151 added->tracer = tracer; in yama_ptracer_add()
179 static void yama_ptracer_del(struct task_struct *tracer, in yama_ptracer_del() argument
190 (tracer && relation->tracer == tracer)) { in yama_ptracer_del()
243 struct task_struct *tracer; in yama_task_prctl() local
245 tracer = find_get_task_by_vpid(arg2); in yama_task_prctl()
246 if (!tracer) { in yama_task_prctl()
249 rc = yama_ptracer_add(tracer, myself); in yama_task_prctl()
250 put_task_struct(tracer); in yama_task_prctl()
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| /linux/security/apparmor/ |
| H A D | task.c | 244 struct aa_label *tracer, u32 request, in profile_tracee_perm() argument
247 if (profile_unconfined(tracee) || unconfined(tracer) || in profile_tracee_perm()
251 return profile_ptrace_perm(cred, tracee, tracer, request, ad); in profile_tracee_perm()
255 struct aa_profile *tracer, in profile_tracer_perm() argument
259 if (profile_unconfined(tracer)) in profile_tracer_perm()
262 if (label_mediates(&tracer->label, AA_CLASS_PTRACE)) in profile_tracer_perm()
263 return profile_ptrace_perm(cred, tracer, tracee, request, ad); in profile_tracer_perm()
266 if (&tracer->label == tracee) in profile_tracer_perm()
269 ad->subj_label = &tracer->label; in profile_tracer_perm()
272 ad->error = aa_capable(cred, &tracer->label, CAP_SYS_PTRACE, in profile_tracer_perm()
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| /linux/tools/testing/selftests/ftrace/test.d/direct/ |
| H A D | ftrace-direct.tc | 19 tracer=$1
22 echo $tracer > current_tracer
28 echo $tracer > current_tracer
35 echo $tracer > current_tracer
41 echo $tracer > current_tracer
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| /linux/Documentation/tools/rtla/ |
| H A D | rtla-osnoise-hist.rst | 7 Display a histogram of the osnoise tracer samples
22 The tool also allows many configurations of the *osnoise* tracer and the
23 collection of the tracer output.
35 In the example below, *osnoise* tracer threads are set to run with real-time
62 *osnoise* tracer documentation: <https://www.kernel.org/doc/html/latest/trace/osnoise-tracer.html>
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| H A D | rtla-timerlat.rst | 20 from the *timerlat* tracer. The **rtla timerlat hist** mode displays
21 a histogram of each tracer event occurrence. For further details, please
28 Prints the summary from *timerlat* tracer.
48 *timerlat* tracer documentation: <https://www.kernel.org/doc/html/latest/trace/timerlat-tracer.html>
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| H A D | common_timerlat_description.txt | 1 The **rtla timerlat** tool is an interface for the *timerlat* tracer. The
2 *timerlat* tracer dispatches a kernel thread per-cpu. These threads
7 The *timerlat* tracer outputs information in two ways. It periodically
12 The **rtla timerlat** tool sets the options of the *timerlat* tracer
15 BPF program attached to the *timerlat* tracer. If either BPF or
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| H A D | rtla-osnoise.rst | 19 The *osnoise* tracer outputs information in two ways. It periodically prints
23 mode displays information about the periodic summary from the *osnoise* tracer.
32 Prints the summary from osnoise tracer.
53 Osnoise tracer documentation: <https://www.kernel.org/doc/html/latest/trace/osnoise-tracer.html>
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| H A D | common_osnoise_description.txt | 1 The **rtla osnoise** tool is an interface for the *osnoise* tracer. The
2 *osnoise* tracer dispatches a kernel thread per-cpu. These threads read the
5 The *osnoise*'s tracer threads take note of the delta between each time
7 At the end of each period, the *osnoise* tracer displays a summary of
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| H A D | rtla-osnoise-top.rst | 20 **rtla osnoise top** collects the periodic summary from the *osnoise* tracer,
24 The tool also allows many configurations of the *osnoise* tracer and the
25 collection of the tracer output.
57 Osnoise tracer documentation: <https://www.kernel.org/doc/html/latest/trace/osnoise-tracer.html>
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| H A D | rtla-timerlat-top.rst | 22 from the *timerlat* tracer. It also provides information for each
47 In the example below, the timerlat tracer is dispatched in cpus *1-23* in the
48 automatic trace mode, instructing the tracer to stop if a *40 us* latency or
121 Note that **rtla timerlat** was dispatched without changing *timerlat* tracer
130 *timerlat* tracer documentation: <https://www.kernel.org/doc/html/latest/trace/timerlat-tracer.html>
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| H A D | common_options.txt | 3 Set the |tool| tracer to run the sample threads in the cpu-list.
5 By default, the |tool| tracer runs the sample threads on all CPUs.
42 Set scheduling parameters to the |tool| tracer threads, the format to set the priority are:
49 …tracer threads keep their default priority. For rtla user threads, it is set to SCHED_FIFO with pr…
53 …Set a *cgroup* to the tracer's threads. If the **-C** option is passed without arguments, the trac…
99 --on-threshold shell,command="grep ipi_send |tracer|\_trace.txt"
102 This will save a trace with the default filename "|tracer|\_trace.txt", print its
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| H A D | rtla-timerlat-hist.rst | 21 The **rtla timerlat hist** displays a histogram of each tracer event
42 *1ms* period is also passed to the *timerlat* tracer. Auto-analysis is disabled
107 *timerlat* tracer documentation: <https://www.kernel.org/doc/html/latest/trace/timerlat-tracer.html>
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| H A D | rtla-hwnoise.rst | 22 **rtla hwnoise** collects the periodic summary from the *osnoise* tracer
27 The tool also allows the configurations of the *osnoise* tracer and the
28 collection of the tracer output.
103 Osnoise tracer documentation: <https://www.kernel.org/doc/html/latest/trace/osnoise-tracer.html>
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| H A D | common_osnoise_options.txt | 3 .. |tracer| replace:: osnoise
16 Set the *osnoise* tracer period in microseconds.
20 Set the *osnoise* tracer runtime in microseconds.
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| /linux/tools/perf/Documentation/ |
| H A D | perf-ftrace.txt | 64 --tracer=::
87 Select function tracer and set function filter on the given
95 Select function tracer and do not trace functions given by the
103 - call-graph - Display kernel stack trace for function tracer.
104 - irq-info - Display irq context info for function tracer.
108 Select function_graph tracer and set graph filter on the given
116 Select function_graph tracer and set graph notrace filter on the
118 for the function_graph tracer only and disables tracing for function
130 - nosleep-time - Measure on-CPU time only for function_graph tracer.
134 - depth=<n> - Set max depth for function graph tracer to follow.
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| /linux/Documentation/trace/ |
| H A D | osnoise-tracer.rst | 28 The osnoise tracer leverages the hwlat_detector by running a
33 osnoise tracer also saves an interference counter for each source of
39 source of interference. At the end of the period, the osnoise tracer
57 # tracer: osnoise
77 tracer prints a message at the end of each period for each CPU that is
83 by the osnoise tracer during the associated runtime.
98 The tracer has a set of options inside the osnoise directory, they are:
122 the osnoise tracer. These options are:
127 - PANIC_ON_STOP: call panic() if the tracer stops. This option serves to
132 allowing only NMIs and hardware-related noise, like hwlat tracer.
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| H A D | timerlat-tracer.rst | 2 Timerlat tracer
5 The timerlat tracer aims to help the preemptive kernel developers to
7 the tracer sets a periodic timer that wakes up a thread. The thread then
26 # tracer: timerlat
46 The tracer creates a per-cpu kernel thread with real-time priority
65 The timerlat tracer is built on top of osnoise tracer.
111 the values reported by the timerlat tracer (timerlat_latency)
114 The art below illustrates a CPU timeline and how the timerlat tracer
193 - timerlat tracer is enable
207 scheduled and report the thread latency via tracer - as for the kernel
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| H A D | ftrace.rst | 21 Ftrace is an internal tracer designed to help out developers and
26 Although ftrace is typically considered the function tracer, it
97 This is used to set or display the current tracer
98 that is configured. Changing the current tracer clears
112 the tracer or 1 to enable it. Note, this only disables
131 (no tracer running, or tracing_on is zero), it will produce
146 "trace" file is static, and if the tracer is not
154 files. Options also exist to modify how a tracer
293 Have the function tracer only trace the threads whose PID are
299 traced by the function tracer as well. This option will also
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| /linux/samples/seccomp/ |
| H A D | user-trap.c | 208 pid_t worker = 0 , tracer = 0; in main() local
286 tracer = fork(); in main()
287 if (tracer < 0) { in main()
292 if (tracer == 0) { in main()
370 if (tracer > 0) in main()
371 kill(tracer, SIGKILL); in main()
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| /linux/Documentation/firmware-guide/acpi/ |
| H A D | method-tracing.rst | 77 AML tracer
102 that, as the "AML tracer" logs are implemented via ACPI_DEBUG_PRINT()
104 "AML tracer" logs.
106 The following command examples illustrate the usage of the "AML tracer"
109 a. Filter out the method start/stop "AML tracer" logs when control
117 b. Filter out the method start/stop "AML tracer" when the specified
126 c. Filter out the method start/stop "AML tracer" logs when the specified
135 d. Filter out the method/opcode start/stop "AML tracer" when the
144 e. Filter out the method/opcode start/stop "AML tracer" when the
176 used to match all "AML tracer" logs.
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| /linux/kernel/trace/ |
| H A D | Kconfig | 168 # All tracer options should select GENERIC_TRACER. For those options that are
169 # enabled by all tracers (context switch and event tracer) they select TRACING.
170 # This allows those options to appear when no other tracer is selected. But the
244 sequence is then dynamically patched into a tracer call when
271 using function graph tracer. It can be helpful to locate functions
282 using function graph tracer. It can be helpful to locate code line that
292 the function tracer and function graph tracer will support printing
294 enabled via the trace option func-args (for the function tracer) and
295 funcgraph-args (for the function graph tracer)
350 tracer will ignore all the tracing functions. Sometimes it is useful
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| H A D | trace.h | 211 struct tracer;
225 struct tracer *tracer; member
395 struct tracer *current_trace;
576 struct tracer *trace;
610 struct tracer { struct
631 int (*selftest)(struct tracer *trace, argument
642 struct tracer *next; argument
661 int tracer_init(struct tracer *t, struct trace_array *tr); argument
759 int register_tracer(struct tracer *type);
849 extern int trace_selftest_startup_function(struct tracer *trace,
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| /linux/tools/testing/ktest/examples/bootconfigs/ |
| H A D | tracing.bconf | 2 tracer = function_graph;
26 tracer = function;
|