diff options
author | Lluís Vilanova <vilanova@ac.upc.edu> | 2014-02-23 20:37:40 +0100 |
---|---|---|
committer | Stefan Hajnoczi <stefanha@redhat.com> | 2014-05-07 19:07:18 +0200 |
commit | 1dad2ce97345f3424c4990cb232b40a35d5e936b (patch) | |
tree | 1e7ebf28f38266aca24947f76294f8b6ac340bc5 /scripts/tracetool/format/stap.py | |
parent | ef0bd3bba674769c7d36bf400fc4fe7ea43244c5 (diff) |
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>
Diffstat (limited to 'scripts/tracetool/format/stap.py')
-rw-r--r-- | scripts/tracetool/format/stap.py | 42 |
1 files changed, 39 insertions, 3 deletions
diff --git a/scripts/tracetool/format/stap.py b/scripts/tracetool/format/stap.py index 50a4c69954..e24abf7f11 100644 --- a/scripts/tracetool/format/stap.py +++ b/scripts/tracetool/format/stap.py @@ -6,7 +6,7 @@ Generate .stp file (DTrace with SystemTAP only). """ __author__ = "Lluís Vilanova <vilanova@ac.upc.edu>" -__copyright__ = "Copyright 2012, Lluís Vilanova <vilanova@ac.upc.edu>" +__copyright__ = "Copyright 2012-2014, Lluís Vilanova <vilanova@ac.upc.edu>" __license__ = "GPL version 2 or (at your option) any later version" __maintainer__ = "Stefan Hajnoczi" @@ -14,7 +14,43 @@ __email__ = "stefanha@linux.vnet.ibm.com" from tracetool import out +from tracetool.backend.dtrace import binary, probeprefix -def begin(events): - out('/* This file is autogenerated by tracetool, do not edit. */') +# 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 generate(events, backend): + events = [e for e in events + if "disable" not in e.properties] + + out('/* This file is autogenerated by tracetool, do not edit. */', + '') + + 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() |