diff options
author | Stefan Hajnoczi <stefanha@redhat.com> | 2020-01-07 11:24:38 +0000 |
---|---|---|
committer | Stefan Hajnoczi <stefanha@redhat.com> | 2020-01-13 16:42:20 +0000 |
commit | 3f0097169bb60268cc5dda0c5ea47c31ab57b22f (patch) | |
tree | 3cc65504ddf20a46a005068ab89c04c703c6aaaf /scripts/qemu-trace-stap | |
parent | dc65a5bdc9fa543690a775b50d4ffbeb22c56d6d (diff) |
trace: update qemu-trace-stap to Python 3
qemu-trace-stap does not support Python 3 yet:
$ scripts/qemu-trace-stap list path/to/qemu-system-x86_64
Traceback (most recent call last):
File "scripts/qemu-trace-stap", line 175, in <module>
main()
File "scripts/qemu-trace-stap", line 171, in main
args.func(args)
File "scripts/qemu-trace-stap", line 118, in cmd_list
print_probes(args.verbose, "*")
File "scripts/qemu-trace-stap", line 114, in print_probes
if line.startswith(prefix):
TypeError: startswith first arg must be bytes or a tuple of bytes, not str
Now that QEMU requires Python 3.5 or later we can switch to pure Python
3. Use Popen()'s universal_newlines=True argument to treat stdout as
text instead of binary.
Fixes: 62dd1048c0bd ("trace: add ability to do simple printf logging via systemtap")
Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1787395
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20200107112438.383958-1-stefanha@redhat.com
Message-Id: <20200107112438.383958-1-stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'scripts/qemu-trace-stap')
-rwxr-xr-x | scripts/qemu-trace-stap | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/scripts/qemu-trace-stap b/scripts/qemu-trace-stap index 91d1051cdc..90527eb974 100755 --- a/scripts/qemu-trace-stap +++ b/scripts/qemu-trace-stap @@ -1,4 +1,4 @@ -#!/usr/bin/python +#!/usr/bin/env python3 # -*- python -*- # # Copyright (C) 2019 Red Hat, Inc @@ -18,8 +18,6 @@ # You should have received a copy of the GNU General Public License # along with this program; if not, see <http://www.gnu.org/licenses/>. -from __future__ import print_function - import argparse import copy import os.path @@ -104,7 +102,9 @@ def cmd_list(args): if verbose: print("Listing probes with name '%s'" % script) proc = subprocess.Popen(["stap", "-l", script], - stdout=subprocess.PIPE, env=tapset_env(tapsets)) + stdout=subprocess.PIPE, + universal_newlines=True, + env=tapset_env(tapsets)) out, err = proc.communicate() if proc.returncode != 0: print("No probes found, are the tapsets installed in %s" % tapset_dir(args.binary)) |