tracing: remove transform.py

This file, and a couple of uses, got left behind when the
tcg stuff was removed from tracetool.

Fixes: 126d4123c5 ("tracing: excise the tcg related from tracetool")
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

meson.build

@@ -2861,7 +2861,6 @@ tracetool_depends = files(
   'scripts/tracetool/format/log_stap.py',
   'scripts/tracetool/format/stap.py',
   'scripts/tracetool/__init__.py',
-  'scripts/tracetool/transform.py',
   'scripts/tracetool/vcpu.py'
 )
 

scripts/tracetool/__init__.py

@@ -18,7 +18,6 @@ import weakref
 
 import tracetool.format
 import tracetool.backend
-import tracetool.transform
 
 
 def error_write(*lines):
@@ -190,18 +189,6 @@ class Arguments:
         """List of argument names casted to their type."""
         return ["(%s)%s" % (type_, name) for type_, name in self._args]
 
-    def transform(self, *trans):
-        """Return a new Arguments instance with transformed types.
-
-        The types in the resulting Arguments instance are transformed according
-        to tracetool.transform.transform_type.
-        """
-        res = []
-        for type_, name in self._args:
-            res.append((tracetool.transform.transform_type(type_, *trans),
-                        name))
-        return Arguments(res)
-
 
 class Event(object):
     """Event description.
@@ -358,16 +345,6 @@ class Event(object):
             fmt = Event.QEMU_TRACE
         return fmt % {"name": self.name, "NAME": self.name.upper()}
 
-    def transform(self, *trans):
-        """Return a new Event with transformed Arguments."""
-        return Event(self.name,
-                     list(self.properties),
-                     self.fmt,
-                     self.args.transform(*trans),
-                     self.lineno,
-                     self.filename,
-                     self)
-
 
 def read_events(fobj, fname):
     """Generate the output for the given (format, backends) pair.

scripts/tracetool/transform.py

@@ -1,168 +0,0 @@
-# -*- coding: utf-8 -*-
-
-"""
-Type-transformation rules.
-"""
-
-__author__     = "Lluís Vilanova <vilanova@ac.upc.edu>"
-__copyright__  = "Copyright 2012-2016, Lluís Vilanova <vilanova@ac.upc.edu>"
-__license__    = "GPL version 2 or (at your option) any later version"
-
-__maintainer__ = "Stefan Hajnoczi"
-__email__      = "stefanha@redhat.com"
-
-
-def _transform_type(type_, trans):
-    if isinstance(trans, str):
-        return trans
-    elif isinstance(trans, dict):
-        if type_ in trans:
-            return _transform_type(type_, trans[type_])
-        elif None in trans:
-            return _transform_type(type_, trans[None])
-        else:
-            return type_
-    elif callable(trans):
-        return trans(type_)
-    else:
-        raise ValueError("Invalid type transformation rule: %s" % trans)
-
-
-def transform_type(type_, *trans):
-    """Return a new type transformed according to the given rules.
-
-    Applies each of the transformation rules in trans in order.
-
-    If an element of trans is a string, return it.
-
-    If an element of trans is a function, call it with type_ as its only
-    argument.
-
-    If an element of trans is a dict, search type_ in its keys. If type_ is
-    a key, use the value as a transformation rule for type_. Otherwise, if
-    None is a key use the value as a transformation rule for type_.
-
-    Otherwise, return type_.
-
-    Parameters
-    ----------
-    type_ : str
-        Type to transform.
-    trans : list of function or dict
-        Type transformation rules.
-    """
-    if len(trans) == 0:
-        raise ValueError
-    res = type_
-    for t in trans:
-        res = _transform_type(res, t)
-    return res
-
-
-##################################################
-# tcg -> host
-
-def _tcg_2_host(type_):
-    if type_ == "TCGv":
-        # force a fixed-size type (target-independent)
-        return "uint64_t"
-    else:
-        return type_
-
-TCG_2_HOST = {
-    "TCGv_i32": "uint32_t",
-    "TCGv_i64": "uint64_t",
-    "TCGv_ptr": "void *",
-    None: _tcg_2_host,
-    }
-
-
-##################################################
-# host -> host compatible with tcg sizes
-
-HOST_2_TCG_COMPAT = {
-    "uint8_t": "uint32_t",
-    "uint16_t": "uint32_t",
-    }
-
-
-##################################################
-# host/tcg -> tcg
-
-def _host_2_tcg(type_):
-    if type_.startswith("TCGv"):
-        return type_
-    raise ValueError("Don't know how to translate '%s' into a TCG type\n" % type_)
-
-HOST_2_TCG = {
-    "uint32_t": "TCGv_i32",
-    "uint64_t": "TCGv_i64",
-    "void *"  : "TCGv_ptr",
-    "CPUArchState *": "TCGv_env",
-    None: _host_2_tcg,
-    }
-
-
-##################################################
-# tcg -> tcg helper definition
-
-def _tcg_2_helper_def(type_):
-    if type_ == "TCGv":
-        return "target_ulong"
-    else:
-        return type_
-
-TCG_2_TCG_HELPER_DEF = {
-    "TCGv_i32": "uint32_t",
-    "TCGv_i64": "uint64_t",
-    "TCGv_ptr": "void *",
-    None: _tcg_2_helper_def,
-    }
-
-
-##################################################
-# tcg -> tcg helper declaration
-
-def _tcg_2_tcg_helper_decl_error(type_):
-    raise ValueError("Don't know how to translate type '%s' into a TCG helper declaration type\n" % type_)
-
-TCG_2_TCG_HELPER_DECL = {
-    "TCGv"    : "tl",
-    "TCGv_ptr": "ptr",
-    "TCGv_i32": "i32",
-    "TCGv_i64": "i64",
-    "TCGv_env": "env",
-    None: _tcg_2_tcg_helper_decl_error,
-    }
-
-
-##################################################
-# host/tcg -> tcg temporal constant allocation
-
-def _host_2_tcg_tmp_new(type_):
-    if type_.startswith("TCGv"):
-        return "tcg_temp_new_nop"
-    raise ValueError("Don't know how to translate type '%s' into a TCG temporal allocation" % type_)
-
-HOST_2_TCG_TMP_NEW = {
-    "uint32_t": "tcg_const_i32",
-    "uint64_t": "tcg_const_i64",
-    "void *"  : "tcg_const_ptr",
-    None: _host_2_tcg_tmp_new,
-    }
-
-
-##################################################
-# host/tcg -> tcg temporal constant deallocation
-
-def _host_2_tcg_tmp_free(type_):
-    if type_.startswith("TCGv"):
-        return "tcg_temp_free_nop"
-    raise ValueError("Don't know how to translate type '%s' into a TCG temporal deallocation" % type_)
-
-HOST_2_TCG_TMP_FREE = {
-    "uint32_t": "tcg_temp_free_i32",
-    "uint64_t": "tcg_temp_free_i64",
-    "void *"  : "tcg_temp_free_ptr",
-    None: _host_2_tcg_tmp_free,
-    }