On 9/25/22 7:22 PM, Rong Tao wrote:
From: Rong Tao <rongtao@xxxxxxxx>
A sample of call stack:
swapper/10 [
secondary_startup_64_no_verify
cpu_startup_entry
do_idle
schedule_idle
__schedule
__traceiter_sched_switch
__traceiter_sched_switch
-
try_to_wake_up
call_timer_fn
__run_timers.part.0
run_timer_softirq
__softirqentry_text_start
__irq_exit_rcu
sysvec_apic_timer_interrupt
asm_sysvec_apic_timer_interrupt
cpuidle_enter_state
cpuidle_enter
cpuidle_idle_call
do_idle
cpu_startup_entry
secondary_startup_64_no_verify
] swapper/10 1
Signed-off-by: Rong Tao <rongtao@xxxxxxxx>
---
samples/bpf/offwaketime_user.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/samples/bpf/offwaketime_user.c b/samples/bpf/offwaketime_user.c
index b6eedcb98fb9..d89278d62e4e 100644
--- a/samples/bpf/offwaketime_user.c
+++ b/samples/bpf/offwaketime_user.c
@@ -30,9 +30,9 @@ static void print_ksym(__u64 addr)
}
if (PRINT_RAW_ADDR)
- printf("%s/%llx;", sym->name, addr);
+ printf("\t%s/%llx\n", sym->name, addr);
The origin commit intention is to have an external script for post processing.
Beside, there are bcc, bpftrace, and libbpf-tools which are better places to
have different output options. The current code is good enough for sample
purpose and no need for unnecessary code churn.
