stacksnoop: Migrate to new symbols API and remove addresses

tools/old/stacksnoop.py

@@ -119,10 +119,7 @@
  (task, pid, cpu, flags, ts, msg) = b.trace_fields()
  if msg != "":
  (reg, addr) = msg.split(" ")
- if offset:
- ip = b.ksymaddr(int(addr, 16))
- else:
- ip = b.ksym(int(addr, 16))
+ ip = b.ksym(int(addr, 16), show_address=offset)
  msg = msg + " " + ip
  if verbose:
  print("%-18.9f %-12.12s %-6d %-3d %s" % (ts, task, pid, cpu, msg))

tools/stacksnoop.py

@@ -120,8 +120,8 @@ def print_event(cpu, data, size):
  print("%-18.9f %s" % (ts, function))
 
  for addr in stack_traces.walk(event.stack_id):
- sym = b.ksymaddr(addr) if offset else b.ksym(addr)
- print("\t%016x %s" % (addr, sym))
+ sym = b.ksym(addr, show_address=offset)
+ print("\t%s" % sym)
 
  print()
 

tools/stacksnoop_example.txt

@@ -8,12 +8,12 @@ to see how they were invoked. For example, tracing the submit_bio() call:
 # ./stacksnoop submit_bio
 TIME(s) SYSCALL
 3592.838736000 submit_bio
- ffffffff813bd961 submit_bio
- ffffffff81257c12 submit_bh
- ffffffff81301948 jbd2_journal_commit_transaction
- ffffffff8130653a kjournald2
- ffffffff810a2df8 kthread
- ffffffff8183a122 ret_from_fork
+ submit_bio
+ submit_bh
+ jbd2_journal_commit_transaction
+ kjournald2
+ kthread
+ ret_from_fork
 
 This shows that submit_bio() was called by submit_bh(), which was called
 by jbd2_journal_commit_transaction(), and so on. 
@@ -28,12 +28,12 @@ The -v option includes more fields, including the on-CPU process (COMM and PID):
 # ./stacksnoop -v submit_bio
 TIME(s) COMM PID CPU SYSCALL
 3734.855027000 jbd2/dm-0-8 313 0 submit_bio
- ffffffff813bd961 submit_bio
- ffffffff81257c12 submit_bh
- ffffffff81301948 jbd2_journal_commit_transaction
- ffffffff8130653a kjournald2
- ffffffff810a2df8 kthread
- ffffffff8183a122 ret_from_fork
+ submit_bio
+ submit_bh
+ jbd2_journal_commit_transaction
+ kjournald2
+ kthread
+ ret_from_fork
 
 This identifies the application issuing the sync syscall: the jbd2 process
 (COMM column).
@@ -45,30 +45,30 @@ process:
 # ./stacksnoop -v second_overflow
 TIME(s) COMM PID CPU SYSCALL
 3837.526433000 <idle> 0 1 second_overflow
- ffffffff810fac41 second_overflow
- ffffffff81102320 tick_do_update_jiffies64
- ffffffff81102bf0 tick_irq_enter
- ffffffff810882ac irq_enter
- ffffffff8183c7df smp_apic_timer_interrupt
- ffffffff8183aae2 apic_timer_interrupt
- ffffffff81038f9e default_idle
- ffffffff8103979f arch_cpu_idle
- ffffffff810c69da default_idle_call
- ffffffff810c6cd7 cpu_startup_entry
- ffffffff81051cbe start_secondary
+ second_overflow
+ tick_do_update_jiffies64
+ tick_irq_enter
+ irq_enter
+ smp_apic_timer_interrupt
+ apic_timer_interrupt
+ default_idle
+ arch_cpu_idle
+ default_idle_call
+ cpu_startup_entry
+ start_secondary
 
 3838.526953000 <idle> 0 1 second_overflow
- ffffffff810fac41 second_overflow
- ffffffff81102320 tick_do_update_jiffies64
- ffffffff81102bf0 tick_irq_enter
- ffffffff810882ac irq_enter
- ffffffff8183c7df smp_apic_timer_interrupt
- ffffffff8183aae2 apic_timer_interrupt
- ffffffff81038f9e default_idle
- ffffffff8103979f arch_cpu_idle
- ffffffff810c69da default_idle_call
- ffffffff810c6cd7 cpu_startup_entry
- ffffffff81051cbe start_secondary
+ second_overflow
+ tick_do_update_jiffies64
+ tick_irq_enter
+ irq_enter
+ smp_apic_timer_interrupt
+ apic_timer_interrupt
+ default_idle
+ arch_cpu_idle
+ default_idle_call
+ cpu_startup_entry
+ start_secondary
 
 This fires every second (see TIME(s)), and is from tick_do_update_jiffies64().