diff options
Diffstat (limited to 'firmware/zpu/bin/sbf.py')
-rwxr-xr-x | firmware/zpu/bin/sbf.py | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/firmware/zpu/bin/sbf.py b/firmware/zpu/bin/sbf.py deleted file mode 100755 index 8e2c868a5..000000000 --- a/firmware/zpu/bin/sbf.py +++ /dev/null @@ -1,134 +0,0 @@ -# -# Copyright 2009 Free Software Foundation, Inc. -# -# This program is free software: you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation, either version 3 of the License, or -# (at your option) any later version. -# -# This program 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 General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program. If not, see <http://www.gnu.org/licenses/>. -# - -_SBF_MAGIC = 'SBF!' -_SBF_DONT_EXECUTE = 0x1 -_SBF_MAX_SECTIONS = 14 -_SBF_HEADER_LEN = 128 - -import struct -import sys -from pprint import pprint - -def dump_data(f, offset, data): - L = len(data) // 4 - for i in range(L): - f.write('%08x: %08x\n' % (offset + 4 * i, struct.unpack('>I', data[4*i:4*(i+1)])[0])) - remainder = len(data) - L * 4 - if remainder != 0: - f.write('%08x: ' % (offset + L*4,)) - i = 0 - while i < remainder: - f.write('%02x' % ((ord(data[L*4 + i]),))) - i += 1 - f.write('\n') - - - -class sec_desc(object): - def __init__(self, target_addr, data): - self.target_addr = target_addr - self.data = data - - def __repr__(self): - #print >>sys.stderr, "target_addr:", self.target_addr - #print >>sys.stderr, "data:", self.data - return "<sec_desc target_addr=0x%x len=%d>" % ( - self.target_addr, len(self.data)) - - -class header(object): - def __init__(self, entry, sections): - self.entry = entry - self.section = sections - - def dump(self, f): - if self.entry == _SBF_DONT_EXECUTE: - f.write("Entry: DONT_EXECUTE\n") - else: - f.write("Entry: 0x%x\n" % (self.entry,)) - for i in range(len(self.section)): - s = self.section[i] - f.write("Section[%d]: target_addr = 0x%x length = %d\n" % (i, - s.target_addr, - len(s.data))) - dump_data(f, s.target_addr, s.data) - - # - # Returns an iterator. Each yield returns (target_addr, data) - # - def iterator(self, max_piece=512): - for s in self.section: - offset = 0 - L = len(s.data) - while offset < L: - n = min(max_piece, L - offset) - yield (s.target_addr + offset, - s.data[offset:offset+n]) - offset += n - - - -def read_sbf(input_file): - """Parse an SBF file""" - - f = input_file.read(_SBF_HEADER_LEN) - #if len(f) < _SBF_HEADER_LEN or not f.startswith(_SBF_MAGIC): - #raise ValueError, '%s: not an SBF file' % (input_file.name,) - - def extract(i): - start = 16+8*i - stop = start+8 - return struct.unpack('>2I', f[start:stop]) - - def get_data(ss): - L = ss[1] - s = input_file.read(L) - #if len(s) != L: - #raise ValueError, '%s: file is too short' % (input_file.name(),) - return s - - (magic, entry, nsections, reserved) = struct.unpack('>4s3I', f[0:16]) - assert nsections <= _SBF_MAX_SECTIONS - descs = [extract(i) for i in range(nsections)] - #pprint(descs, sys.stderr) - data = map(get_data, descs) - secs = map(lambda ss, data: sec_desc(ss[0], data), descs, data) - return header(entry, secs) - - -def write_sbf(output_file, sbf_header): - assert(len(sbf_header.section) <= _SBF_MAX_SECTIONS) - sbf_header.nsections = len(sbf_header.section) - f = output_file - - # write the file header - f.write(struct.pack('>4s3I', _SBF_MAGIC, sbf_header.entry, sbf_header.nsections, 0)) - - # write the section headers - for i in range(sbf_header.nsections): - f.write(struct.pack('>2I', - sbf_header.section[i].target_addr, - len(sbf_header.section[i].data))) - for i in range(_SBF_MAX_SECTIONS - sbf_header.nsections): - f.write(struct.pack('>2I', 0, 0)) - - # write the section data - for i in range(sbf_header.nsections): - f.write(sbf_header.section[i].data) - - return True |