FazBrowse GitHub Viewer
|
Trending
|
URL:
|
Home
Tools:
[Download Repo ZIP]
[View Raw Code]
[Original HTTPS Page]
cpython/Python/makeopcodetargets.py at 3.11 · python/cpython · GitHub
python
cpython
Repository navigation
Code
Issues
5k+
(5k+)
Pull requests
2.5k
(2.5k)
Actions
Projects
Security and quality
Insights
Expand file tree
Breadcrumbs
cpython
/
Python
/
makeopcodetargets.py
Copy path
More file actions
More file actions
Latest commit
History
History
History
executable file
·
61 lines (51 loc) · 1.78 KB
Breadcrumbs
cpython
/
Python
/
makeopcodetargets.py
Copy path
File metadata and controls
executable file
·
61 lines (51 loc) · 1.78 KB
Raw
Copy raw file
Download raw file
Open symbols panel
Edit and raw actions
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
#! /usr/bin/env python
"""Generate C code for the jump table of the threaded code interpreter
(for compilers supporting computed gotos or "labels-as-values", such as gcc).
"""
import
os
import
sys
try
:
from
importlib
.
machinery
import
SourceFileLoader
except
ImportError
:
import
imp
def
find_module
(
modname
):
"""Finds and returns a module in the local dist/checkout.
"""
modpath
=
os
.
path
.
join
(
os
.
path
.
dirname
(
os
.
path
.
dirname
(
__file__
)),
"Lib"
)
return
imp
.
load_module
(
modname
,
*
imp
.
find_module
(
modname
, [
modpath
]))
else
:
def
find_module
(
modname
):
"""Finds and returns a module in the local dist/checkout.
"""
modpath
=
os
.
path
.
join
(
os
.
path
.
dirname
(
os
.
path
.
dirname
(
__file__
)),
"Lib"
,
modname
+
".py"
)
return
SourceFileLoader
(
modname
,
modpath
).
load_module
()
def
write_contents
(
f
):
"""Write C code contents to the target file object.
"""
opcode
=
find_module
(
'opcode'
)
targets
=
[
'_unknown_opcode'
]
*
256
targets
[
255
]
=
"TARGET_DO_TRACING"
for
opname
,
op
in
opcode
.
opmap
.
items
():
targets
[
op
]
=
"TARGET_%s"
%
opname
next_op
=
1
for
opname
in
opcode
.
_specialized_instructions
:
while
targets
[
next_op
]
!=
'_unknown_opcode'
:
next_op
+=
1
targets
[
next_op
]
=
"TARGET_%s"
%
opname
f
.
write
(
"static void *opcode_targets[256] = {
\n
"
)
f
.
write
(
",
\n
"
.
join
([
" &&%s"
%
s
for
s
in
targets
]))
f
.
write
(
"
\n
};
\n
"
)
def
main
():
if
len
(
sys
.
argv
)
>=
3
:
sys
.
exit
(
"Too many arguments"
)
if
len
(
sys
.
argv
)
==
2
:
target
=
sys
.
argv
[
1
]
else
:
target
=
"Python/opcode_targets.h"
with
open
(
target
,
"w"
)
as
f
:
write_contents
(
f
)
print
(
"Jump table written into %s"
%
target
)
if
__name__
==
"__main__"
:
main
()
Back
|
FazBrowse Home
|
New Git URL