perf scripts: Fallback to syscalls:* when raw_syscalls:* is not available

Older kernels (e.g., RHEL6) do system call tracing via the syscalls:sys_{enter,exit} tracepoints rather than using raw_syscalls:*. Update perf python and perl scripts to fallback to syscalls:* when raw_syscalls:* isn't available.

Daniel Bristot de Oliveira committed 12 years ago

Commit 07100871 parent 1c92f8810 files · +35 −5Browse files

Showing the changes to tools/perf/scripts/python/syscall-counts.py (1 of 10 files). Show all

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tools/perf/scripts/python/syscall-counts.py+5−0

@@ -44,6 +44,11 @@ def raw_syscalls__sys_enter(event_name, context, common_cpu, · 43 unmodified lines
44	44	except TypeError:
45	45	syscalls[id] = 1
46	46
	47	+def syscalls__sys_enter(event_name, context, common_cpu,
	48	+ common_secs, common_nsecs, common_pid, common_comm,
	49	+ id, args):
	50	+ raw_syscalls__sys_enter(**locals())
	51	+
47	52	def print_syscall_totals():
48	53	if for_comm is not None:
49	54	print "\nsyscall events for %s:\n\n" % (for_comm),