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-rw-r--r--scripts/tracetool/backend/dtrace.py79
1 files changed, 8 insertions, 71 deletions
diff --git a/scripts/tracetool/backend/dtrace.py b/scripts/tracetool/backend/dtrace.py
index 3c369c4780..fabfe99881 100644
--- a/scripts/tracetool/backend/dtrace.py
+++ b/scripts/tracetool/backend/dtrace.py
@@ -21,7 +21,7 @@ PUBLIC = True
PROBEPREFIX = None
-def _probeprefix():
+def probeprefix():
if PROBEPREFIX is None:
raise ValueError("you must set PROBEPREFIX")
return PROBEPREFIX
@@ -29,81 +29,18 @@ def _probeprefix():
BINARY = None
-def _binary():
+def binary():
if BINARY is None:
raise ValueError("you must set BINARY")
return BINARY
-def c(events):
- pass
-
-
-def h(events):
+def generate_h_begin(events):
out('#include "trace/generated-tracers-dtrace.h"',
'')
- for e in events:
- out('static inline void %(api)s(%(args)s) {',
- ' QEMU_%(uppername)s(%(argnames)s);',
- '}',
- api = e.api(),
- args = e.args,
- uppername = e.name.upper(),
- argnames = ", ".join(e.args.names()),
- )
-
-
-def d(events):
- out('provider qemu {')
-
- for e in events:
- args = str(e.args)
-
- # DTrace provider syntax expects foo() for empty
- # params, not foo(void)
- if args == 'void':
- args = ''
-
- # Define prototype for probe arguments
- out('',
- 'probe %(name)s(%(args)s);',
- name = e.name,
- args = args,
- )
-
- out('',
- '};')
-
-
-# Technically 'self' is not used by systemtap yet, but
-# they recommended we keep it in the reserved list anyway
-RESERVED_WORDS = (
- 'break', 'catch', 'continue', 'delete', 'else', 'for',
- 'foreach', 'function', 'global', 'if', 'in', 'limit',
- 'long', 'next', 'probe', 'return', 'self', 'string',
- 'try', 'while'
- )
-
-def stap(events):
- for e in events:
- # Define prototype for probe arguments
- out('probe %(probeprefix)s.%(name)s = process("%(binary)s").mark("%(name)s")',
- '{',
- probeprefix = _probeprefix(),
- name = e.name,
- binary = _binary(),
- )
-
- i = 1
- if len(e.args) > 0:
- for name in e.args.names():
- # Append underscore to reserved keywords
- if name in RESERVED_WORDS:
- name += '_'
- out(' %s = $arg%d;' % (name, i))
- i += 1
-
- out('}')
-
- out()
+
+def generate_h(event):
+ out(' QEMU_%(uppername)s(%(argnames)s);',
+ uppername=event.name.upper(),
+ argnames=", ".join(event.args.names()))