trace: [tracetool] Minimize the amount of per-backend code

Backends now only contain the essential backend-specific code, and most of the work is moved to frontend code.

Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

1 files changed, 8 insertions, 56 deletions

diff --git a/scripts/tracetool/backend/ust.py b/scripts/tracetool/backend/ust.py
index 2fca4d2c81..2f8f44abde 100644
--- a/scripts/tracetool/backend/ust.py
+++ b/scripts/tracetool/backend/ust.py
@@ -18,66 +18,18 @@ from tracetool import out
 
 PUBLIC = True
 
-def c(events):
-    pass
 
-
-def h(events):
+def generate_h_begin(events):
     out('#include <lttng/tracepoint.h>',
         '#include "trace/generated-ust-provider.h"',
         '')
-    for e in events:
-        argnames = ", ".join(e.args.names())
-        if len(e.args) > 0:
-            argnames = ", " + argnames
-
-        out('static inline void %(api)s(%(args)s)',
-            '{',
-            '    tracepoint(qemu, %(name)s%(tp_args)s);',
-            '}',
-            '',
-            api = e.api()
-            name = e.name,
-            args = e.args,
-            tp_args = argnames,
-            )
-
-def ust_events_c(events):
-    pass
-
-def ust_events_h(events):
-    for e in events:
-        if len(e.args) > 0:
-            out('TRACEPOINT_EVENT(',
-                '   qemu,',
-                '   %(name)s,',
-                '   TP_ARGS(%(args)s),',
-                '   TP_FIELDS(',
-                name = e.name,
-                args = ", ".join(", ".join(i) for i in e.args),
-                )
 
-            for t,n in e.args:
-                if ('int' in t) or ('long' in t) or ('unsigned' in t) or ('size_t' in t):
-                    out('       ctf_integer(' + t + ', ' + n + ', ' + n + ')')
-                elif ('double' in t) or ('float' in t):
-                    out('       ctf_float(' + t + ', ' + n + ', ' + n + ')')
-                elif ('char *' in t) or ('char*' in t):
-                    out('       ctf_string(' + n + ', ' + n + ')')
-                elif ('void *' in t) or ('void*' in t):
-                    out('       ctf_integer_hex(unsigned long, ' + n + ', ' + n + ')')
 
-            out('   )',
-                ')',
-                '')
+def generate_h(event):
+    argnames = ", ".join(event.args.names())
+    if len(event.args) > 0:
+        argnames = ", " + argnames
 
-        else:
-            out('TRACEPOINT_EVENT(',
-                '   qemu,',
-                '   %(name)s,',
-                '   TP_ARGS(void),',
-                '   TP_FIELDS()',
-                ')',
-                '',
-                name = e.name,
-                )
+    out('    tracepoint(qemu, %(name)s%(tp_args)s);',
+        name=event.name,
+        tp_args=argnames)