1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Type-transformation rules.
"""
__author__ = "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"
__email__ = "stefanha@linux.vnet.ibm.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",
}
##################################################
# 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",
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",
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,
}
|
