[PATCH 02/16] tracetool: remove dead code

Paolo Bonzini posted 16 patches 1 week, 2 days ago
Maintainers: John Snow <jsnow@redhat.com>, Peter Maydell <peter.maydell@linaro.org>, Mauro Carvalho Chehab <mchehab+huawei@kernel.org>, "Marc-André Lureau" <marcandre.lureau@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Manos Pitsidianakis <manos.pitsidianakis@linaro.org>, Cleber Rosa <crosa@redhat.com>, Alexander Bulekov <alxndr@bu.edu>, Bandan Das <bsd@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>, Fabiano Rosas <farosas@suse.de>, Darren Kenny <darren.kenny@oracle.com>, Qiuhao Li <Qiuhao.Li@outlook.com>, "Alex Bennée" <alex.bennee@linaro.org>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Markus Armbruster <armbru@redhat.com>, Michael Roth <michael.roth@amd.com>, Alexandre Iooss <erdnaxe@crans.org>, Mahmoud Mandour <ma.mandourr@gmail.com>, Pierrick Bouvier <pierrick.bouvier@linaro.org>, Mads Ynddal <mads@ynddal.dk>
[PATCH 02/16] tracetool: remove dead code
Posted by Paolo Bonzini 1 week, 2 days ago
There are no tcg-exec events anymore and the sub-event functionality was
only used for it.  Excise it from tracetool.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 scripts/tracetool/__init__.py | 44 +++++------------------------------
 scripts/tracetool/format/h.py |  5 ----
 2 files changed, 6 insertions(+), 43 deletions(-)

diff --git a/scripts/tracetool/__init__.py b/scripts/tracetool/__init__.py
index 1d5238a0843..afa889e759e 100644
--- a/scripts/tracetool/__init__.py
+++ b/scripts/tracetool/__init__.py
@@ -122,10 +122,6 @@ def __init__(self, args):
             else:
                 self._args.append(arg)
 
-    def copy(self):
-        """Create a new copy."""
-        return Arguments(list(self._args))
-
     @staticmethod
     def build(arg_str):
         """Build and Arguments instance from an argument string.
@@ -222,13 +218,12 @@ class Event(object):
                       r"(?P<name>\w+)"
                       r"\((?P<args>[^)]*)\)"
                       r"\s*"
-                      r"(?:(?:(?P<fmt_trans>\".+),)?\s*(?P<fmt>\".+))?"
+                      r"(?P<fmt>\".+)?"
                       r"\s*")
 
     _VALID_PROPS = set(["disable"])
 
-    def __init__(self, name, props, fmt, args, lineno, filename, orig=None,
-                 event_trans=None, event_exec=None):
+    def __init__(self, name, props, fmt, args, lineno, filename):
         """
         Parameters
         ----------
@@ -236,20 +231,14 @@ def __init__(self, name, props, fmt, args, lineno, filename, orig=None,
             Event name.
         props : list of str
             Property names.
-        fmt : str, list of str
-            Event printing format string(s).
+        fmt : str
+            Event printing format string.
         args : Arguments
             Event arguments.
         lineno : int
             The line number in the input file.
         filename : str
             The path to the input file.
-        orig : Event or None
-            Original Event before transformation/generation.
-        event_trans : Event or None
-            Generated translation-time event ("tcg" property).
-        event_exec : Event or None
-            Generated execution-time event ("tcg" property).
 
         """
         self.name = name
@@ -258,29 +247,16 @@ def __init__(self, name, props, fmt, args, lineno, filename, orig=None,
         self.args = args
         self.lineno = int(lineno)
         self.filename = str(filename)
-        self.event_trans = event_trans
-        self.event_exec = event_exec
 
         if len(args) > 10:
             raise ValueError("Event '%s' has more than maximum permitted "
                              "argument count" % name)
 
-        if orig is None:
-            self.original = weakref.ref(self)
-        else:
-            self.original = orig
-
         unknown_props = set(self.properties) - self._VALID_PROPS
         if len(unknown_props) > 0:
             raise ValueError("Unknown properties: %s"
                              % ", ".join(unknown_props))
-        assert isinstance(self.fmt, str) or len(self.fmt) == 2
 
-    def copy(self):
-        """Create a new copy."""
-        return Event(self.name, list(self.properties), self.fmt,
-                     self.args.copy(), self.lineno, self.filename,
-                     self, self.event_trans, self.event_exec)
 
     @staticmethod
     def build(line_str, lineno, filename):
@@ -302,8 +278,7 @@ def build(line_str, lineno, filename):
         name = groups["name"]
         props = groups["props"].split()
         fmt = groups["fmt"]
-        fmt_trans = groups["fmt_trans"]
-        if fmt.find("%m") != -1 or fmt_trans.find("%m") != -1:
+        if fmt.find("%m") != -1:
             raise ValueError("Event format '%m' is forbidden, pass the error "
                              "as an explicit trace argument")
         if fmt.endswith(r'\n"'):
@@ -312,29 +287,22 @@ def build(line_str, lineno, filename):
         if '\\n' in fmt:
             raise ValueError("Event format must not use new line character")
 
-        if len(fmt_trans) > 0:
-            fmt = [fmt_trans, fmt]
         args = Arguments.build(groups["args"])
 
         return Event(name, props, fmt, args, lineno, posix_relpath(filename))
 
     def __repr__(self):
         """Evaluable string representation for this object."""
-        if isinstance(self.fmt, str):
-            fmt = self.fmt
-        else:
-            fmt = "%s, %s" % (self.fmt[0], self.fmt[1])
         return "Event('%s %s(%s) %s')" % (" ".join(self.properties),
                                           self.name,
                                           self.args,
-                                          fmt)
+                                          self.fmt)
     # Star matching on PRI is dangerous as one might have multiple
     # arguments with that format, hence the non-greedy version of it.
     _FMT = re.compile(r"(%[\d\.]*\w+|%.*?PRI\S+)")
 
     def formats(self):
         """List conversion specifiers in the argument print format string."""
-        assert not isinstance(self.fmt, list)
         return self._FMT.findall(self.fmt)
 
     QEMU_TRACE               = "trace_%(name)s"
diff --git a/scripts/tracetool/format/h.py b/scripts/tracetool/format/h.py
index b42a8268a81..bd9e0ca7f23 100644
--- a/scripts/tracetool/format/h.py
+++ b/scripts/tracetool/format/h.py
@@ -40,11 +40,6 @@ def generate(events, backend, group):
             enabled = 0
         else:
             enabled = 1
-        if "tcg-exec" in e.properties:
-            # a single define for the two "sub-events"
-            out('#define TRACE_%(name)s_ENABLED %(enabled)d',
-                name=e.original.name.upper(),
-                enabled=enabled)
         out('#define TRACE_%s_ENABLED %d' % (e.name.upper(), enabled))
 
     backend.generate_begin(events, group)
-- 
2.51.0
Re: [PATCH 02/16] tracetool: remove dead code
Posted by Stefan Hajnoczi 4 days, 21 hours ago
On Fri, Sep 19, 2025 at 01:25:22PM +0200, Paolo Bonzini wrote:
> There are no tcg-exec events anymore and the sub-event functionality was
> only used for it.  Excise it from tracetool.
> 
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
>  scripts/tracetool/__init__.py | 44 +++++------------------------------
>  scripts/tracetool/format/h.py |  5 ----
>  2 files changed, 6 insertions(+), 43 deletions(-)

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>