| /trunk/tools/xstruct.py |
|---|
| 0,0 → 1,68 |
| # |
| # Copyright (c) 2008 Martin Decky |
| # All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions |
| # are met: |
| # |
| # - Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # - Redistributions in binary form must reproduce the above copyright |
| # notice, this list of conditions and the following disclaimer in the |
| # documentation and/or other materials provided with the distribution. |
| # - The name of the author may not be used to endorse or promote products |
| # derived from this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| # |
| """ |
| Convert descriptive structure definitions to struct formats |
| """ |
| import struct |
| def convert(definition): |
| "Convert structure defition to struct format" |
| tokens = definition.split(None) |
| # Initial byte order tag |
| struct = { |
| "little:": lambda: "<", |
| "big:": lambda: ">", |
| "network:": lambda: "!" |
| }[tokens[0]]() |
| # Member tags |
| for token in tokens[1:]: |
| if (token[0:5] == "char["): |
| size = token[5:].split("]")[0] |
| struct += ("%d" % int(size)) + "s" |
| else: |
| struct += { |
| "uint8_t": lambda: "B", |
| "uint16_t": lambda: "H", |
| "uint32_t": lambda: "L", |
| "uint64_t": lambda: "Q", |
| "int8_t": lambda: "b", |
| "int16_t": lambda: "h", |
| "int32_t": lambda: "l", |
| "int64_t": lambda: "q" |
| }[token]() |
| return struct |
| def little_string(string): |
| return struct.pack("<" + ("%d" % len(string)) + "s", string) |
| /trunk/tools/mktmpfs.py |
|---|
| 33,43 → 33,45 |
| import sys |
| import os |
| import struct |
| import xstruct |
| HEADER = xstruct.convert("little: char[5]") |
| DENTRY = xstruct.convert("little: uint8_t uint32_t") |
| SIZE = xstruct.convert("little: uint32_t") |
| DENTRY_NONE = 0 |
| DENTRY_FILE = 1 |
| DENTRY_DIRECTORY = 2 |
| def usage(prname): |
| "Print usage syntax" |
| print prname + " <ALIGNMENT> <PATH> <IMAGE>" |
| print prname + " <PATH> <IMAGE>" |
| def recursion(root, outf): |
| "Recursive directory walk" |
| payload_size = 0 |
| for name in os.listdir(root): |
| canon = os.path.join(root, name) |
| if (os.path.isfile(canon)): |
| outf.write(struct.pack("<BL" + ("%d" % len(name)) + "s", 1, len(name), name)) |
| payload_size += 5 + len(name) |
| outf.write(struct.pack(DENTRY, DENTRY_FILE, len(name))) |
| outf.write(xstruct.little_string(name)) |
| size = os.path.getsize(canon) |
| rd = 0; |
| outf.write(struct.pack("<L", size)) |
| payload_size += 4 |
| outf.write(struct.pack(SIZE, size)) |
| inf = file(canon, "r") |
| while (rd < size): |
| data = inf.read(4096); |
| outf.write(data) |
| payload_size += len(data) |
| rd += len(data) |
| inf.close() |
| if (os.path.isdir(canon)): |
| outf.write(struct.pack("<BL" + ("%d" % len(name)) + "s", 2, len(name), name)) |
| payload_size += 5 + len(name) |
| payload_size += recursion(canon, outf) |
| outf.write(struct.pack("<BL", 0, 0)) |
| payload_size += 5 |
| return payload_size |
| outf.write(struct.pack(DENTRY, DENTRY_DIRECTORY, len(name))) |
| outf.write(xstruct.little_string(name)) |
| recursion(canon, outf) |
| outf.write(struct.pack(DENTRY, DENTRY_NONE, 0)) |
| def main(): |
| if (len(sys.argv) < 3): |
| 83,9 → 85,9 |
| outf = file(sys.argv[2], "w") |
| outf.write(struct.pack("<5s", "TMPFS")) |
| outf.write(struct.pack(HEADER, "TMPFS")) |
| recursion(path, outf) |
| outf.write(struct.pack("<BL", 0, 0)) |
| outf.write(struct.pack(DENTRY, DENTRY_NONE, 0)) |
| outf.close() |
| /trunk/tools/mkhord.py |
|---|
| 38,7 → 38,6 |
| "Align upwards to a given alignment" |
| return (((size) + ((alignment) - 1)) & ~((alignment) - 1)) |
| def usage(prname): |
| "Print usage syntax" |
| print prname + " <ALIGNMENT> <FS_IMAGE> <HORD_IMAGE>" |
| 60,10 → 59,9 |
| inf = file(fs_image, "rb") |
| outf = file(sys.argv[3], "wb") |
| header_size = align_up(18, align) |
| aligned_size = align_up(os.path.getsize(fs_image), align) |
| outf.write(struct.pack("<4sBBLQ", "HORD", 1, 1, header_size, aligned_size)) |
| outf.write(struct.pack("<" + ("%d" % (header_size - 18)) + "x")) |