Re: [PATCH] trace: update qemu-trace-stap to Python 3

[Stefan Hajnoczi <stefanha@redhat.com>]

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On Tue, Jan 07, 2020 at 11:24:38AM +0000, Stefan Hajnoczi wrote:
> 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>
> ---
>  scripts/qemu-trace-stap | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)

Thanks, applied to my tracing tree:
https://github.com/stefanha/qemu/commits/tracing

Stefan

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