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From 94150e55c2a2f43e95e5c14c753aee5900df47f1 Mon Sep 17 00:00:00 2001
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From: Stefan Hajnoczi <stefanha@redhat.com>
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Date: Wed, 11 Jul 2018 12:31:04 +0100
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Subject: [PATCH 3/4] simpletrace: Convert name from mapping record to str
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RH-Author: Stefan Hajnoczi <stefanha@redhat.com>
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Message-id: <20180711123104.31091-2-stefanha@redhat.com>
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Patchwork-id: 81299
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O-Subject: [qemu-kvm RHEL8/virt212 PATCH 1/1] simpletrace: Convert name from mapping record to str
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Bugzilla: 1594969
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RH-Acked-by: Laurent Vivier <lvivier@redhat.com>
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RH-Acked-by: Eduardo Habkost <ehabkost@redhat.com>
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RH-Acked-by: Markus Armbruster <armbru@redhat.com>
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From: Eduardo Habkost <ehabkost@redhat.com>
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The rest of the code assumes that idtoname is a (int -> str)
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dictionary, so convert the data accordingly.
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This is necessary to make the script work with Python 3 (where
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reads from a binary file return 'bytes' objects, not 'str').
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Fixes the following error:
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  $ python3 ./scripts/simpletrace.py trace-events-all trace-27445
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  b'object_class_dynamic_cast_assert' event is logged but is not \
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  declared in the trace events file, try using trace-events-all instead.
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Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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Message-id: 20180619194549.15584-1-ehabkost@redhat.com
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Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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(cherry picked from commit 749c1d8e3e12c44247927d8f72f68ec0c0266f8b)
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Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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---
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 scripts/simpletrace.py | 2 +-
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 1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/scripts/simpletrace.py b/scripts/simpletrace.py
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index d4a50a1..4ad34f9 100755
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--- a/scripts/simpletrace.py
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+++ b/scripts/simpletrace.py
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@@ -70,7 +70,7 @@ def get_record(edict, idtoname, rechdr, fobj):
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 def get_mapping(fobj):
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     (event_id, ) = struct.unpack('=Q', fobj.read(8))
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     (len, ) = struct.unpack('=L', fobj.read(4))
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-    name = fobj.read(len)
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+    name = fobj.read(len).decode()
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     return (event_id, name)
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-- 
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1.8.3.1
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