Hui Su
ba22053f5d
scripts/tracing: fix the bug that can't parse raw_trace_func
commit 1c0cec64a7cc545eb49f374a43e9f7190a14defa upstream.
Since commit 77271ce4b2 ("tracing: Add irq, preempt-count and need resched info
to default trace output"), the default trace output format has been changed to:
<idle>-0 [009] d.h. 22420.068695: _raw_spin_lock_irqsave <-hrtimer_interrupt
<idle>-0 [000] ..s. 22420.068695: _nohz_idle_balance <-run_rebalance_domains
<idle>-0 [011] d.h. 22420.068695: account_process_tick <-update_process_times
origin trace output format:(before v3.2.0)
# tracer: nop
#
# TASK-PID CPU# TIMESTAMP FUNCTION
# | | | | |
migration/0-6 [000] 50.025810: rcu_note_context_switch <-__schedule
migration/0-6 [000] 50.025812: trace_rcu_utilization <-rcu_note_context_switch
migration/0-6 [000] 50.025813: rcu_sched_qs <-rcu_note_context_switch
migration/0-6 [000] 50.025815: rcu_preempt_qs <-rcu_note_context_switch
migration/0-6 [000] 50.025817: trace_rcu_utilization <-rcu_note_context_switch
migration/0-6 [000] 50.025818: debug_lockdep_rcu_enabled <-__schedule
migration/0-6 [000] 50.025820: debug_lockdep_rcu_enabled <-__schedule
The draw_functrace.py(introduced in v2.6.28) can't parse the new version format trace_func,
So we need modify draw_functrace.py to adapt the new version trace output format.
Link: https://lkml.kernel.org/r/20210611022107.608787-1-suhui@zeku.com
Cc: stable@vger.kernel.org
Fixes: 77271ce4b2 tracing: Add irq, preempt-count and need resched info to default trace output
Signed-off-by: Hui Su <suhui@zeku.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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2021-08-12 13:21:00 +02:00 |
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coccinelle
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selinux
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tracing
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scripts/tracing: fix the bug that can't parse raw_trace_func
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2021-08-12 13:21:00 +02:00 |
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ftrace: Have recordmcount use w8 to read relp->r_info in arm64_is_fake_mcount
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