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ftrace_event_call's id ftrace_event_call's name ftrace_event_call's system ftrace_event_field's name ftrace_event_field's type ftrace_event_field's offset ftrace_event_field's size __data_loc char ftrace global_trace max_tr ftrace_events current_trace nr_cpu_ids trace_array tracer ring_buffer cpus ring_buffer_per_cpu head_page tail_page commit_page reader_page read buffer_page list list_head ftrace_event_call fields link ftrace_event_field is_signed trace_array's buffer ring_buffer's pages POINTER_SYM's POINTER tracer's name common_type common_pid function function_graph funcgraph_entry funcgraph_exit graph_ent.func graph_ent.depth ret.func ret.calltime ret.rettime ret.overrun ret.depth sched_kthread_stop sched sched_kthread_stop_ret sched_wait_task sched_wakeup sched_wakeup_new sched_switch sched_migrate_task sched_process_free sched_process_exit sched_process_wait sched_process_fork sched_signal_send kmalloc kmem kmem_cache_alloc kmalloc_node kmem_cache_alloc_node kfree kmem_cache_free workqueue_insertion workqueue workqueue_execution workqueue_creation workqueue_destruction thread_comm thread_pid thread=%s:%d
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gfp_flags bytes_alloc bytes_req sig sig: %d task %s:%d
parent_comm parent_pid child_comm child_pid parent %s:%d child %s:%d
task %s:%d [%d]
dest_cpu orig_cpu prev_comm prev_pid prev_prio prev_state next_comm next_pid next_prio task %s:%d [%d] ( S D T Z X x W ) ==> %s:%d [%d]
success task %s:%d [%d] success=%d
ret %d
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(Overruns: %lu)
%*s ();
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malloc() fail
f:c: mkdir failed
sm dump_tracing_dir mkdir: %s exists
%s/per_cpu %s/cpu%d %s/cpu%d/trace_pipe_raw wb %s/events %s/%s/%s %s/format name: %s
ID: %d
format:
%d %s
symbols is not dumpped.
%s/saved_cmdlines current tracer is %s
dump show show or dump the tracing info -f: set or clear a flag trace dump [-sm] ring_buffer_per_cpu's head_page ring_buffer_per_cpu's tail_page ring_buffer_per_cpu's commit_page ring_buffer_per_cpu's reader_page Num of pages is larger than %d
error for resolve head_page_index
ftrace_event_field's is_signed call_site=%lx ptr=%p bytes_req=%zu bytes_alloc=%zu gfp_flags=%lx node=%d
call_site=%lx ptr=%p bytes_req=%zu bytes_alloc=%zu gfp_flags=%lx
task %s:%d [%d] from: %d to: %d
------------------------------------------
------------------------------------------
field:%s %s; offset:%d; size:%d;
print fmt: "unknow fmt from dump"
-s option hasn't been implemented.
You can use `sym -l > %s/kallsyms`
[ ] [-f [no]]> | > ] shows the current tracer and other informations. trace show [ -c ] [ -f [no] ] shows all events with readability text(sorted by timestamp) -c: only shows specified CPUs' events. ex. trace show -c 1,2 - only shows cpu#1 and cpu#2 's events. trace show -c 0,2-7 - only shows cpu#0, cpu#2...cpu#7's events. available flags default context_info true sym_offset false sym_addr false graph_print_duration true graph_print_overhead true graph_print_abstime false graph_print_cpu true graph_print_proc false graph_print_overrun false dump ring_buffers to dest-dir. Then you can parse it by other tracing tools. The dirs and files are generated the same as debugfs/tracing. -m: also dump metadata of ftrace. -s: also dump symbols of the kernel . ; = } }( }@ ~X ~p (~ X~ h~ ~ ~ H h H 8P (x 8 Ȍ x Ș H 0 X x 0 8` h 8 0 8X h x H x
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