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-rw-r--r--scripts/tracetool/backend/dtrace.py12
1 files changed, 12 insertions, 0 deletions
diff --git a/scripts/tracetool/backend/dtrace.py b/scripts/tracetool/backend/dtrace.py
index c6812b70a2..c2f3a4e5a8 100644
--- a/scripts/tracetool/backend/dtrace.py
+++ b/scripts/tracetool/backend/dtrace.py
@@ -44,8 +44,20 @@ def generate_h_begin(events, group):
out('#include "%s"' % header,
'')
+ # SystemTap defines <provider>_<name>_ENABLED() but other DTrace
+ # implementations might not.
+ for e in events:
+ out('#ifndef QEMU_%(uppername)s_ENABLED',
+ '#define QEMU_%(uppername)s_ENABLED() true',
+ '#endif',
+ uppername=e.name.upper())
def generate_h(event, group):
out(' QEMU_%(uppername)s(%(argnames)s);',
uppername=event.name.upper(),
argnames=", ".join(event.args.names()))
+
+
+def generate_h_backend_dstate(event, group):
+ out(' QEMU_%(uppername)s_ENABLED() || \\',
+ uppername=event.name.upper())