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Merged PR 2710: BaseTools/Conf: Add OEM Data build rule
BaseTools/Conf: Add OEM Data build rule Adds a new build rule for OEM data files which are structured compiled data. The rule provides support for MSFT, GCC, and Clang toolchains.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| #!/usr/bin/env bash | ||
| #python `dirname $0`/RunToolFromSource.py `basename $0` $* | ||
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| # If a ${PYTHON_COMMAND} command is available, use it in preference to python | ||
| if command -v ${PYTHON_COMMAND} >/dev/null 2>&1; then | ||
| python_exe=${PYTHON_COMMAND} | ||
| fi | ||
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| full_cmd=${BASH_SOURCE:-$0} # see http://mywiki.wooledge.org/BashFAQ/028 for a discussion of why $0 is not a good choice here | ||
| dir=$(dirname "$full_cmd") | ||
| exe=$(basename "$full_cmd") | ||
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| export PYTHONPATH="$dir/../../Source/Python${PYTHONPATH:+:"$PYTHONPATH"}" | ||
| exec "${python_exe:-python}" "$dir/../../Source/Python/$exe/$exe.py" "$@" |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,3 @@ | ||
| @setlocal | ||
| @set ToolName=%~n0% | ||
| @%PYTHON_COMMAND% %BASE_TOOLS_PATH%\Source\Python\%ToolName%\%ToolName%.py %* |
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97
BaseTools/Source/Python/OemDataFormatter/OemDataFormatter.py
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| # @file | ||
| # | ||
| # Formats a collection of intermediate OEM data binary files | ||
| # in a given directory into a single OEM binary file | ||
| # | ||
| # Copyright (C) Microsoft Corporation. All rights reserved. | ||
| # | ||
| ## | ||
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| import glob | ||
| import io | ||
| import os | ||
| import sys | ||
| import struct | ||
| from collections import namedtuple | ||
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| class OemDataFormatter: | ||
| STRUCT_SIGNATURE = b"__SDSH__" | ||
| ITEM_SIGNATURE = b"_SDDATA_" | ||
| OEM_ID = b"__MSFT__" | ||
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| def __init__(self, directory_path): | ||
| if not os.path.isdir(directory_path): | ||
| raise NotADirectoryError( | ||
| f"{directory_path} is an invalid directory!") | ||
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| self._directory_path = directory_path | ||
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| def _get_bins(self): | ||
| return glob.glob(os.path.join(self._directory_path, '*.oemdatabin.i')) | ||
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| def _get_signed_item(self, file_path): | ||
| with open(file_path, 'rb') as bin_file: | ||
| bin_data = bytearray(bin_file.read()) | ||
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| signed_item_pos = 0 | ||
| while True: | ||
| signed_item_pos = bin_data.find( | ||
| self.ITEM_SIGNATURE, signed_item_pos) | ||
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| if signed_item_pos == -1: | ||
| return | ||
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| ItemHeader = namedtuple('ItemHeader', 'sig header_len id len') | ||
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| item_header = ItemHeader._make(struct.unpack_from( | ||
| '<QHHI', bin_data, signed_item_pos)) | ||
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| print(f"Signed data item found") | ||
| print(f" Item ID: {item_header.id}") | ||
| print(f" Item Length: {item_header.len} bytes") | ||
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| signed_item = bin_data[signed_item_pos:signed_item_pos + | ||
| item_header.header_len + item_header.len] | ||
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| yield signed_item | ||
| signed_item_pos += (item_header.header_len + item_header.len) | ||
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| def _get_signed_structure(self): | ||
| signed_items = [i for b in self._get_bins() for i in | ||
| self._get_signed_item(b)] | ||
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| StructureHeader = namedtuple('StructureHeader', | ||
| 'sig rev header_len oem_id desc_count') | ||
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| struct_header = StructureHeader( | ||
| self.STRUCT_SIGNATURE, | ||
| 1, | ||
| 26, | ||
| self.OEM_ID, | ||
| len(signed_items)) | ||
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| struct_header_data = struct.pack('<8sHI8sI', *struct_header) | ||
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| with io.BytesIO() as out_buffer: | ||
| out_buffer.write(struct_header_data) | ||
| for item in signed_items: | ||
| # Note: Just keep things packed tight for now | ||
| # aligned_boundary = (((~out_buffer.tell()) + 1) & | ||
| # self.ITEM_ALIGNMENT - 1) | ||
| # out_buffer.seek(out_buffer.tell() + aligned_boundary) | ||
| out_buffer.write(item) | ||
| return out_buffer.getvalue() | ||
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| def get_file_data(self): | ||
| return {f: list(self._get_signed_item(f)) for f in self._get_bins()} | ||
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| def write_data(self, out_file_path): | ||
| with open(out_file_path, 'wb') as out_bin_file: | ||
| out_bin_file.write(self._get_signed_structure()) | ||
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| # Todo: Clean up arg parsing, documentation, logger, etc. | ||
| if __name__ == '__main__': | ||
| oem_data = OemDataFormatter(sys.argv[1]) | ||
| oem_data.write_data(os.path.join(sys.argv[1], 'data.oemdatabin')) |