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877cc63968
When generating a Python script with "perf script -g python", produce
one that is compatible with Python 2 and 3. The difference between the
two generated scripts is:
--- python2-perf-script.py 2018-05-08 15:35:00.865889705 -0400
+++ python3-perf-script.py 2018-05-08 15:34:49.019789564 -0400
@@ -7,6 +7,8 @@
# be retrieved using Python functions of the form common_*(context).
# See the perf-script-python Documentation for the list of available functions.
+from __future__ import print_function
+
import os
import sys
@@ -18,10 +20,10 @@
def trace_begin():
- print "in trace_begin"
+ print("in trace_begin")
def trace_end():
- print "in trace_end"
+ print("in trace_end")
def raw_syscalls__sys_enter(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
@@ -29,26 +31,26 @@
print_header(event_name, common_cpu, common_secs, common_nsecs,
common_pid, common_comm)
- print "id=%d, args=%s" % \
- (id, args)
+ print("id=%d, args=%s" % \
+ (id, args))
- print 'Sample: {'+get_dict_as_string(perf_sample_dict['sample'], ', ')+'}'
+ print('Sample: {'+get_dict_as_string(perf_sample_dict['sample'], ', ')+'}')
for node in common_callchain:
if 'sym' in node:
- print "\t[%x] %s" % (node['ip'], node['sym']['name'])
+ print("\t[%x] %s" % (node['ip'], node['sym']['name']))
else:
- print " [%x]" % (node['ip'])
+ print(" [%x]" % (node['ip']))
- print "\n"
+ print()
def trace_unhandled(event_name, context, event_fields_dict, perf_sample_dict):
- print get_dict_as_string(event_fields_dict)
- print 'Sample: {'+get_dict_as_string(perf_sample_dict['sample'], ', ')+'}'
+ print(get_dict_as_string(event_fields_dict))
+ print('Sample: {'+get_dict_as_string(perf_sample_dict['sample'], ', ')+'}')
def print_header(event_name, cpu, secs, nsecs, pid, comm):
- print "%-20s %5u %05u.%09u %8u %-20s " % \
- (event_name, cpu, secs, nsecs, pid, comm),
+ print("%-20s %5u %05u.%09u %8u %-20s " % \
+ (event_name, cpu, secs, nsecs, pid, comm), end="")
def get_dict_as_string(a_dict, delimiter=' '):
return delimiter.join(['%s=%s'%(k,str(v))for k,v in sorted(a_dict.items())])
Signed-off-by: Jeremy Cline <jeremy@jcline.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Herton Krzesinski <herton@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/0100016341a7278a-d178c724-2b0f-49ca-be93-80a7d51aaa0d-000000@email.amazonses.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.