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- #!/usr/bin/env python
- # This python program generates parameters for the linker script generator feature.
-
- # 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
-
- 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()
-
- device = {
- 'info': {},
- 'defs': [],
- 'family': [],
- }
-
- # 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
-
- # split line into it's parts: <pattern> <parent> <data..>
- parts = line.split()
- pattern, parent, data = parts[0], parts[1], parts[2:]
-
- # skip line if pattern did not match first element
- if not fnmatch.fnmatch(find, pattern):
- continue
-
- # 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
-
- # add FPU and CPU to info, not defs
- if k in ('FPU', 'CPU'):
- device['info'][k.lower()] = v
- continue
-
- device['defs'].append((k, v))
-
- # if parent is +, there's more data for this pattern
- if parent == '+':
- continue
-
- # device family
- device['family'].append(find)
-
- # break if this was the last line in this chain
- if parent == 'END':
- break
-
- # look for the parent
- find = parent
-
- # reverse device list
- device['family'] = device['family'][::-1]
-
- # device was not found
- if len(device['family']) == 0:
- sys.exit(1)
-
- # 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']))
-
- # defines
- if mode == 'DEFS':
- if len(device['defs']) > 0:
- defs = ' '.join('-D_%s=%s' % d for d in device['defs'])
- sys.stdout.write(' ' + defs)
-
- # device family
- elif mode == 'FAMILY':
- if len(device['family']) > 0:
- sys.stdout.write(device['family'][0])
-
- # device subfamily
- elif mode == 'SUBFAMILY':
- if len(device['family']) > 1:
- sys.stdout.write(device['family'][1])
-
- # device info
- else:
- info = mode.lower()
- if info in device['info']:
- sys.stdout.write(device['info'][info])
-
- sys.stdout.flush()
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