| /linux/tools/virtio/virtio-trace/ |
| H A D | README | 1 Trace Agent for virtio-trace
4 Trace agent is a user tool for sending trace data of a guest to a Host in low
5 overhead. Trace agent has the following functions:
8 - write trace data to stdout by using -o option
11 The trace agent operates as follows:
16 4) After the controller of the trace agent receives a start order from a host,
18 5) The read/write threads start to read trace data from ring-buffers and
21 stop to read trace data.
28 Makefile: Makefile of trace agent for virtio-trace
29 trace-agent.c: includes main function, sets up for operating trace agent
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| /linux/tools/perf/ |
| H A D | builtin-trace.c | 2 * builtin-trace.c
4 * Builtin 'trace' command:
6 * Display a continuously updated trace of any workload, CPU, specific PID,
12 * Initially based on the 'trace' prototype by Thomas Gleixner:
14 * http://lwn.net/Articles/415728/ ("Announcing a new utility: 'trace'")
58 #include "trace/beauty/beauty.h"
59 #include "trace-event.h"
142 struct trace { struct
224 static void trace__load_vmlinux_btf(struct trace *trace __maybe_unused) in trace__load_vmlinux_btf() argument
227 if (trace->btf != NULL) in trace__load_vmlinux_btf()
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| /linux/tools/testing/selftests/ftrace/test.d/event/ |
| H A D | event-mod.tc | 7 rmmod trace-events-sample ||:
8 if ! modprobe trace-events-sample ; then
9 echo "No trace-events sample module - please make CONFIG_SAMPLE_TRACE_EVENTS=m"
12 trap "rmmod trace-events-sample" EXIT
15 echo ":mod:trace-events-sample" > set_event
20 grep -q sample-trace:foo_bar set_event
21 grep -q sample-trace:foo_bar_with_cond set_event
22 grep -q sample-trace:foo_bar_with_fn set_event
25 val=`cat events/sample-trace/enable`
49 val=`cat events/sample-trace/enable`
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| H A D | trace_printk.tc | 5 rmmod trace-printk ||:
6 if ! modprobe trace-printk ; then
7 echo "No trace-printk sample module - please make CONFIG_SAMPLE_TRACE_PRINTK=m"
14 grep -q ": This .* trace_bputs" trace
15 grep -q ": This .* trace_puts" trace
16 grep -q ": This .* trace_bprintk" trace
17 grep -q ": This .* trace_printk" trace
19 grep -q ": (irq) .* trace_bputs" trace
20 grep -q ": (irq) .* trace_puts" trace
21 grep -q ": (irq) .* trace_bprintk" trace
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| /linux/tools/verification/rv/src/ |
| H A D | trace.c | 3 * trace helpers.
16 #include <trace.h>
20 * create_instance - create a trace instance with *instance_name
28 * destroy_instance - remove a trace instance and free the data
42 * Returns 0 if the event was collected, 1 if the tool should stop collecting trace.
48 struct trace_instance *trace = context; in collect_registered_events() local
49 struct trace_seq *s = trace->seq; in collect_registered_events()
63 * trace_instance_destroy - destroy and free a rv trace instance
65 void trace_instance_destroy(struct trace_instance *trace) in trace_instance_destroy() argument
67 if (trace->inst) { in trace_instance_destroy()
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| /linux/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/ |
| H A D | tracepoints.rst | 11 kernel tracepoints interfaces (refer to Documentation/trace/ftrace.rst).
17 - mlx5e_configure_flower: trace flower filter actions and cookies offloaded to mlx5::
20 $ cat /sys/kernel/tracing/trace
24 - mlx5e_delete_flower: trace flower filter actions and cookies deleted from mlx5::
27 $ cat /sys/kernel/tracing/trace
31 - mlx5e_stats_flower: trace flower stats request::
34 $ cat /sys/kernel/tracing/trace
38 - mlx5e_tc_update_neigh_used_value: trace tunnel rule neigh update value offloaded to mlx5::
41 $ cat /sys/kernel/tracing/trace
45 - mlx5e_rep_neigh_update: trace neigh update tasks scheduled due to neigh state change events::
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| /linux/drivers/hwtracing/intel_th/ |
| H A D | Kconfig | 3 tristate "Intel(R) Trace Hub controller"
6 Intel(R) Trace Hub (TH) is a set of hardware blocks (subdevices) that
7 produce, switch and output trace data from multiple hardware and
8 software sources over several types of trace output ports encoded
9 in System Trace Protocol (MIPI STPv2) and is intended to perform
16 Say Y here to enable Intel(R) Trace Hub controller support.
21 tristate "Intel(R) Trace Hub PCI controller"
24 Intel(R) Trace Hub may exist as a PCI device. This option enables
30 tristate "Intel(R) Trace Hub ACPI controller"
33 Intel(R) Trace Hub may exist as an ACPI device. This option enables
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| /linux/kernel/ |
| H A D | stacktrace.c | 5 * Stack trace management functions
19 * stack_trace_print - Print the entries in the stack trace
38 * stack_trace_snprint - Print the entries in the stack trace into a buffer
105 * stack_trace_save - Save a stack trace into a storage array
108 * @skipnr: Number of entries to skip at the start of the stack trace
110 * Return: Number of trace entries stored.
128 * stack_trace_save_tsk - Save a task stack trace into a storage array
132 * @skipnr: Number of entries to skip at the start of the stack trace
134 * Return: Number of trace entries stored.
157 * stack_trace_save_regs - Save a stack trace based on pt_regs into a storage array
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| /linux/Documentation/trace/coresight/ |
| H A D | coresight-etm4x-reference.rst | 23 :Trace Registers: {CONFIGR + others}
25 Bit select trace features. See ‘mode’ section below. Bits
26 in this will cause equivalent programming of trace config and
32 bitfield up to 32 bits setting trace features.
40 :Trace Registers: All
42 Reset all programming to trace nothing / no logic programmed.
50 :Trace Registers: PRGCTLR, All hardware regs.
53 and enables trace.
55 - = 0 : disable trace hardware.
63 :Trace Registers: None.
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| /linux/arch/mips/kernel/ |
| H A D | stacktrace.c | 3 * Stack trace management functions
17 static void save_raw_context_stack(struct stack_trace *trace, in save_raw_context_stack() argument
27 if (trace->skip > 0) in save_raw_context_stack()
28 trace->skip--; in save_raw_context_stack()
30 trace->entries[trace->nr_entries++] = addr; in save_raw_context_stack()
31 if (trace->nr_entries >= trace->max_entries) in save_raw_context_stack()
37 static void save_context_stack(struct stack_trace *trace, in save_context_stack() argument
50 save_raw_context_stack(trace, sp, savesched); in save_context_stack()
55 if (trace->skip > 0) in save_context_stack()
56 trace->skip--; in save_context_stack()
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| /linux/tools/tracing/rtla/src/ |
| H A D | trace.c | 10 #include "trace.h"
51 * create_instance - create a trace instance with *instance_name
59 * destroy_instance - remove a trace instance and free the data
68 * save_trace_to_file - save the trace output of the instance to the file
72 const char *file = "trace"; in save_trace_to_file()
80 err_msg("Failed to open trace file\n"); in save_trace_to_file()
118 struct trace_instance *trace = context; in collect_registered_events() local
119 struct trace_seq *s = trace->seq; in collect_registered_events()
121 trace->processed_events++; in collect_registered_events()
142 struct trace_instance *trace = context; in collect_missed_events() local
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| H A D | timerlat_hist.c | 221 struct trace_instance *trace = data; in timerlat_hist_handler() local
226 tool = container_of(trace, struct osnoise_tool, trace); in timerlat_hist_handler()
243 struct trace_seq *s = tool->trace.seq; in timerlat_hist_header()
304 struct trace_instance *trace, in timerlat_print_summary() argument
313 trace_seq_printf(trace->seq, "count:"); in timerlat_print_summary()
323 trace_seq_printf(trace->seq, "%9llu ", in timerlat_print_summary()
327 trace_seq_printf(trace->seq, "%9llu ", in timerlat_print_summary()
331 trace_seq_printf(trace->seq, "%9llu ", in timerlat_print_summary()
334 trace_seq_printf(trace->seq, "\n"); in timerlat_print_summary()
337 trace_seq_printf(trace->seq, "min: "); in timerlat_print_summary()
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| H A D | osnoise_hist.c | 162 tracefs_hist_pause(tool->trace.inst, data->trace_hist); in osnoise_destroy_trace_hist()
163 tracefs_hist_destroy(tool->trace.inst, data->trace_hist); in osnoise_destroy_trace_hist()
183 data->trace_hist = tracefs_hist_alloc(tool->trace.tep, "osnoise", "sample_threshold", in osnoise_init_trace_hist()
192 retval = tracefs_hist_start(tool->trace.inst, data->trace_hist); in osnoise_init_trace_hist()
212 tracefs_hist_pause(tool->trace.inst, data->trace_hist); in osnoise_read_trace_hist()
214 content = tracefs_event_file_read(tool->trace.inst, "osnoise", in osnoise_read_trace_hist()
258 struct trace_seq *s = tool->trace.seq; in osnoise_hist_header()
296 struct trace_instance *trace, in osnoise_print_summary() argument
305 trace_seq_printf(trace->seq, "count:"); in osnoise_print_summary()
314 trace_seq_printf(trace->seq, "%9d ", data->hist[cpu].count); in osnoise_print_summary()
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| /linux/arch/openrisc/kernel/ |
| H A D | stacktrace.c | 2 * Stack trace utility for OpenRISC
28 struct stack_trace *trace = data; in save_stack_address() local
33 if (trace->skip > 0) { in save_stack_address()
34 trace->skip--; in save_stack_address()
38 if (trace->nr_entries < trace->max_entries) in save_stack_address()
39 trace->entries[trace->nr_entries++] = addr; in save_stack_address()
42 void save_stack_trace(struct stack_trace *trace) in save_stack_trace() argument
44 unwind_stack(trace, (unsigned long *) &trace, save_stack_address); in save_stack_trace()
51 struct stack_trace *trace = (struct stack_trace *)data; in save_stack_address_nosched() local
59 if (trace->skip > 0) { in save_stack_address_nosched()
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| /linux/Documentation/trace/ |
| H A D | intel_th.rst | 4 Intel(R) Trace Hub (TH)
10 Intel(R) Trace Hub (TH) is a set of hardware blocks that produce,
11 switch and output trace data from multiple hardware and software
12 sources over several types of trace output ports encoded in System
13 Trace Protocol (MIPI STPv2) and is intended to perform full system
14 debugging. For more information on the hardware, see Intel(R) Trace
17 It consists of trace sources, trace destinations (outputs) and a
18 switch (Global Trace Hub, GTH). These devices are placed on a bus of
23 - Software Trace Hub (STH), trace source, which is a System Trace
25 - Memory Storage Unit (MSU), trace output, which allows storing
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| H A D | stm.rst | 4 System Trace Module
7 System Trace Module (STM) is a device described in MIPI STP specs as
8 STP trace stream generator. STP (System Trace Protocol) is a trace
9 protocol multiplexing data from multiple trace sources, each one of
12 hardware trace sources, others are available to software. Software
13 trace sources are usually free to pick for themselves any
16 On the receiving end of this STP stream (the decoder side), trace
18 order for the decoder to be able to make sense of the trace that
19 involves multiple trace sources, it needs to be able to map those
20 master/channel pairs to the trace sources that it understands.
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| /linux/arch/sh/kernel/ |
| H A D | stacktrace.c | 5 * Stack trace management functions
23 struct stack_trace *trace = data; in save_stack_address() local
28 if (trace->skip > 0) { in save_stack_address()
29 trace->skip--; in save_stack_address()
33 if (trace->nr_entries < trace->max_entries) in save_stack_address()
34 trace->entries[trace->nr_entries++] = addr; in save_stack_address()
41 void save_stack_trace(struct stack_trace *trace) in save_stack_trace() argument
45 unwind_stack(current, NULL, sp, &save_stack_ops, trace); in save_stack_trace()
52 struct stack_trace *trace = (struct stack_trace *)data; in save_stack_address_nosched() local
60 if (trace->skip > 0) { in save_stack_address_nosched()
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| /linux/drivers/hwtracing/coresight/ |
| H A D | coresight-trace-id.h | 11 * Coresight trace ID allocation API
13 * With multi cpu systems, and more additional trace sources a scalable
14 * trace ID reservation system is required.
26 * Trace ID maps will be created and initialised to prevent architecturally
30 * different sets of cpus trace into different independent sinks.
47 * Read and optionally allocate a CoreSight trace ID and associate with a CPU.
49 * Function will read the current trace ID for the associated CPU,
57 * return: CoreSight trace ID or -EINVAL if allocation impossible.
68 * Release an allocated trace ID associated with the CPU.
70 * This will release the CoreSight trace I
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| H A D | Kconfig | 14 and trace drivers to register themselves with. It's intended to build
17 trace source gets enabled.
27 responsible for transporting and collecting the trace data
28 respectively. Link and sinks are dynamically aggregated with a trace
29 entity at run time to form a complete trace path.
39 This enables support for the Trace Memory Controller driver.
41 trace router - ETR) or sink (embedded trace FIFO). The driver
54 lookup. CATU helps TMC ETR to use a large physically non-contiguous trace
66 This enables support for the Trace Port Interface Unit driver,
68 components and a trace for bridging the gap between the on-chip
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| /linux/tools/testing/selftests/ftrace/test.d/kprobe/ |
| H A D | kprobe_ftrace.tc | 13 echo > trace
15 grep testprobe trace
16 ! grep "$FUNCTION_FORK <-" trace
20 echo > trace
22 grep testprobe trace
23 grep "$FUNCTION_FORK <-" trace
27 echo > trace
29 ! grep testprobe trace
30 grep "$FUNCTION_FORK <-" trace
35 echo > trace
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| /linux/drivers/s390/scsi/ |
| H A D | zfcp_dbf.h | 28 * struct zfcp_dbf_rec_trigger - trace record for triggered recovery action
42 * struct zfcp_dbf_rec_running - trace record for running recovery
58 * enum zfcp_dbf_rec_id - recovery trace record id
68 * struct zfcp_dbf_rec - trace record for error recovery actions
97 * enum zfcp_dbf_san_id - SAN trace record identifier
98 * @ZFCP_DBF_SAN_REQ: request trace record id
99 * @ZFCP_DBF_SAN_RES: response trace record id
108 /** struct zfcp_dbf_san - trace record for SAN requests and responses
126 * struct zfcp_dbf_hba_res - trace record for hba responses
146 * struct zfcp_dbf_hba_uss - trace record for unsolicited status
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| /linux/arch/sparc/kernel/ |
| H A D | stacktrace.c | 14 struct stack_trace *trace, in __save_stack_trace() argument
55 if (trace->skip > 0) in __save_stack_trace()
56 trace->skip--; in __save_stack_trace()
58 trace->entries[trace->nr_entries++] = pc; in __save_stack_trace()
66 if (trace->nr_entries < in __save_stack_trace()
67 trace->max_entries) in __save_stack_trace()
68 trace->entries[trace->nr_entries++] = pc; in __save_stack_trace()
74 } while (trace->nr_entries < trace->max_entries); in __save_stack_trace()
77 void save_stack_trace(struct stack_trace *trace) in save_stack_trace() argument
79 __save_stack_trace(current_thread_info(), trace, false); in save_stack_trace()
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| /linux/net/ipv6/ |
| H A D | ioam6_iptunnel.c | 83 static bool ioam6_validate_trace_hdr(struct ioam6_trace_hdr *trace) in ioam6_validate_trace_hdr() argument
87 if (!trace->type_be32 || !trace->remlen || in ioam6_validate_trace_hdr()
88 trace->remlen > IOAM6_TRACE_DATA_SIZE_MAX / 4 || in ioam6_validate_trace_hdr()
89 trace->type.bit12 | trace->type.bit13 | trace->type.bit14 | in ioam6_validate_trace_hdr()
90 trace->type.bit15 | trace->type.bit16 | trace->type.bit17 | in ioam6_validate_trace_hdr()
91 trace->type.bit18 | trace->type.bit19 | trace->type.bit20 | in ioam6_validate_trace_hdr()
92 trace->type.bit21 | trace->type.bit23) in ioam6_validate_trace_hdr()
95 trace->nodelen = 0; in ioam6_validate_trace_hdr()
96 fields = be32_to_cpu(trace->type_be32); in ioam6_validate_trace_hdr()
98 trace->nodelen += hweight32(fields & IOAM6_MASK_SHORT_FIELDS) in ioam6_validate_trace_hdr()
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| /linux/net/core/ |
| H A D | net-traces.c | 3 * consolidates trace point definitions
30 #include <trace/events/skb.h>
31 #include <trace/events/net.h>
32 #include <trace/events/napi.h>
33 #include <trace/events/sock.h>
34 #include <trace/events/udp.h>
35 #include <trace/events/tcp.h>
36 #include <trace/events/fib.h>
37 #include <trace/events/qdisc.h>
39 #include <trace/events/bridge.h>
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| /linux/tools/perf/Documentation/ |
| H A D | perf-ftrace.txt | 12 'perf ftrace' {trace|latency|profile} <command>
19 'perf ftrace trace' is a simple wrapper of the ftrace. It only supports
36 Trace on existing process id (comma separated list).
39 Trace on existing thread id (comma separated list).
50 Only trace for the list of CPUs provided. Multiple CPUs can
53 Default is to trace on all online CPUs.
60 OPTIONS for 'perf ftrace trace'
70 List available functions to trace. It accepts a pattern to
83 Trace children processes spawned by our target.
86 --trace
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