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genlink: Rewrite genlink script from awk to python
This removes the dependency on python and should fix libopencm3#732
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,125 @@ | ||
| #!/usr/bin/env python | ||
| # This python program generates parameters for the linker script generator feature. | ||
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| # This file is part of the libopencm3 project. | ||
| # | ||
| # 2017 George-Cristian Jiglau <noonien> | ||
| # | ||
| # This library is free software: you can redistribute it and/or modify | ||
| # it under the terms of the GNU Lesser General Public License as published by | ||
| # the Free Software Foundation, either version 3 of the License, or | ||
| # (at your option) any later version. | ||
| # | ||
| # This library is distributed in the hope that it will be useful, | ||
| # but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| # GNU Lesser General Public License for more details. | ||
| # | ||
| # You should have received a copy of the GNU Lesser General Public License | ||
| # along with this library. If not, see <http://www.gnu.org/licenses/>. | ||
| from __future__ import print_function | ||
| import fnmatch | ||
| import sys | ||
| import re | ||
| import os | ||
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||
| if len(sys.argv) != 4: | ||
| print("usage: %s <device-data-file> <device> <mode>" % sys.argv[0], file=sys.stderr) | ||
| sys.exit(1) | ||
|
|
||
| data_file_path = sys.argv[1] | ||
| find = sys.argv[2].lower() | ||
| mode = sys.argv[3].upper() | ||
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| device = { | ||
| 'info': {}, | ||
| 'defs': [], | ||
| 'family': [], | ||
| } | ||
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||
| # open device data file | ||
| with open(data_file_path, 'r') as data_file: | ||
| # iterate lines | ||
| for line in data_file: | ||
| # strip whitespace from the beginning and end of line | ||
| line = line.strip() | ||
|
|
||
| # skip empty lines and comments | ||
| if line == '' or line.startswith('#'): | ||
| continue | ||
|
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||
| # split line into it's parts: <pattern> <parent> <data..> | ||
| parts = line.split() | ||
| pattern, parent, data = parts[0], parts[1], parts[2:] | ||
|
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||
| # skip line if pattern did not match first element | ||
| if not fnmatch.fnmatch(find, pattern): | ||
| continue | ||
|
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| # extract data | ||
| for d in data: | ||
| # split into K=V | ||
| try: | ||
| (k, v) = d.split('=') | ||
| except: | ||
| continue | ||
|
|
||
| # skip invalid datas | ||
| if not re.match('^[A-Z0-9_]+$', k): | ||
| continue | ||
|
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||
| # add FPU and CPU to info, not defs | ||
| if k in ('FPU', 'CPU'): | ||
| device['info'][k.lower()] = v | ||
| continue | ||
|
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| device['defs'].append((k, v)) | ||
|
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| # if parent is +, there's more data for this pattern | ||
| if parent == '+': | ||
| continue | ||
|
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| # device family | ||
| device['family'].append(find) | ||
|
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||
| # break if this was the last line in this chain | ||
| if parent == 'END': | ||
| break | ||
|
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| # look for the parent | ||
| find = parent | ||
|
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||
| # reverse device list | ||
| device['family'] = device['family'][::-1] | ||
|
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||
| # device was not found | ||
| if len(device['family']) == 0: | ||
| sys.exit(1) | ||
|
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| # for CPPFLAGS and DEFS, define device family | ||
| if mode in ('CPPFLAGS', 'DEFS'): | ||
| sys.stdout.write(' '.join('-D%s' % d.upper() for d in device['family'])) | ||
|
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||
| # defines | ||
| if mode == 'DEFS': | ||
| if len(device['defs']) > 0: | ||
| defs = ' '.join('-D_%s=%s' % d for d in device['defs']) | ||
| sys.stdout.write(' ' + defs) | ||
|
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| # device family | ||
| elif mode == 'FAMILY': | ||
| if len(device['family']) > 0: | ||
| sys.stdout.write(device['family'][0]) | ||
|
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| # device subfamily | ||
| elif mode == 'SUBFAMILY': | ||
| if len(device['family']) > 1: | ||
| sys.stdout.write(device['family'][1]) | ||
|
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| # device info | ||
| else: | ||
| info = mode.lower() | ||
| if info in device['info']: | ||
| sys.stdout.write(device['info'][info]) | ||
|
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||
| sys.stdout.flush() |
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