From 1549651da623aa35c745bd1f283c907324bd6cc9 Mon Sep 17 00:00:00 2001 From: Pierre Gondois Date: Wed, 5 Feb 2020 22:52:03 +0800 Subject: BaseTools: Script for converting .aml to .hex The "-tc" option of the iasl compiler allows to generate a .hex file containing a C array storing AML bytecode. An online discussion suggested that this "-tc" option was specific to the iasl compiler and it shouldn't be relied on. This conversation is available at: https://edk2.groups.io/g/devel/topic/39786201#49659 A way to address this issue is to implement a compiler independent script that takes an AML file as input, and generates a .hex file. This patch implements a Python script that converts an AML file to a .hex file, containing a C array storing AML bytecode. This scipt has been tested with the AML output from the following compilers supported by the EDKII implementation: * Intel ASL compiler * Microsoft ASL compiler Signed-off-by: Pierre Gondois Reviewed-by: Bob Feng --- BaseTools/BinWrappers/PosixLike/AmlToHex | 14 +++ BaseTools/BinWrappers/WindowsLike/AmlToHex.bat | 3 + BaseTools/Conf/build_rule.template | 3 + BaseTools/Source/Python/AmlToHex/AmlToHex.py | 156 +++++++++++++++++++++++++ 4 files changed, 176 insertions(+) create mode 100755 BaseTools/BinWrappers/PosixLike/AmlToHex create mode 100644 BaseTools/BinWrappers/WindowsLike/AmlToHex.bat create mode 100644 BaseTools/Source/Python/AmlToHex/AmlToHex.py diff --git a/BaseTools/BinWrappers/PosixLike/AmlToHex b/BaseTools/BinWrappers/PosixLike/AmlToHex new file mode 100755 index 0000000..9fb6829 --- /dev/null +++ b/BaseTools/BinWrappers/PosixLike/AmlToHex @@ -0,0 +1,14 @@ +#!/usr/bin/env bash +#python `dirname $0`/RunToolFromSource.py `basename $0` $* + +# 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 + +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 "$full_cmd") + +export PYTHONPATH="$dir/../../Source/Python${PYTHONPATH:+:"$PYTHONPATH"}" +exec "${python_exe:-python}" "$dir/../../Source/Python/$exe/$exe.py" "$@" diff --git a/BaseTools/BinWrappers/WindowsLike/AmlToHex.bat b/BaseTools/BinWrappers/WindowsLike/AmlToHex.bat new file mode 100644 index 0000000..9616cd8 --- /dev/null +++ b/BaseTools/BinWrappers/WindowsLike/AmlToHex.bat @@ -0,0 +1,3 @@ +@setlocal +@set ToolName=%~n0% +@%PYTHON_COMMAND% %BASE_TOOLS_PATH%\Source\Python\%ToolName%\%ToolName%.py %* diff --git a/BaseTools/Conf/build_rule.template b/BaseTools/Conf/build_rule.template index 51748bc..0822b68 100755 --- a/BaseTools/Conf/build_rule.template +++ b/BaseTools/Conf/build_rule.template @@ -1,6 +1,7 @@ # # Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.
# Portions copyright (c) 2008 - 2010, Apple Inc. All rights reserved.
+# Copyright (c) 2020, ARM Ltd. All rights reserved.
# SPDX-License-Identifier: BSD-2-Clause-Patent # @@ -427,12 +428,14 @@ "$(ASLPP)" $(DEPS_FLAGS) $(ASLPP_FLAGS) $(INC) /I${s_path} $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.i > $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.iii Trim --source-code -l -o $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.iiii $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.iii "$(ASL)" $(ASL_FLAGS) $(ASL_OUTFLAGS)${dst} $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.iiii + -AmlToHex $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.aml Trim --asl-file --asl-deps -o $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.i -i $(INC_LIST) ${src} "$(ASLPP)" $(DEPS_FLAGS) $(ASLPP_FLAGS) $(INC) -I${s_path} $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.i > $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.iii Trim --source-code -l -o $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.iiii $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.iii "$(ASL)" $(ASL_FLAGS) $(ASL_OUTFLAGS)${dst} $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.iiii + -AmlToHex $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.aml [C-Code-File.AcpiTable] diff --git a/BaseTools/Source/Python/AmlToHex/AmlToHex.py b/BaseTools/Source/Python/AmlToHex/AmlToHex.py new file mode 100644 index 0000000..643db29 --- /dev/null +++ b/BaseTools/Source/Python/AmlToHex/AmlToHex.py @@ -0,0 +1,156 @@ +## @file +# +# Convert an AML file to a .hex file containing the AML bytecode stored in a +# C array. +# By default, "Tables\Dsdt.aml" will generate "Tables\Dsdt.hex". +# "Tables\Dsdt.hex" will contain a C array named "dsdt_aml_code" that contains +# the AML bytecode. +# +# Copyright (c) 2020, ARM Limited. All rights reserved.
+# +# SPDX-License-Identifier: BSD-2-Clause-Patent +# + +import argparse +import Common.EdkLogger as EdkLogger +from Common.BuildToolError import * +import sys +import os + +## Parse the command line arguments. +# +# @retval A argparse.NameSpace instance, containing parsed values. +# +def ParseArgs(): + # Initialize the parser. + Parser = argparse.ArgumentParser( + description="Convert an AML file to a .hex file containing the AML " + \ + "bytecode stored in a C array. By default, " + \ + "\"Tables\\Dsdt.aml\" will generate" + \ + "\"Tables\\Dsdt.hex\". \"Tables\\Dsdt.hex\" will " + \ + "contain a C array named \"dsdt_aml_code\" that " + \ + "contains the AML bytecode." + ) + + # Define the possible arguments. + Parser.add_argument( + dest="InputFile", + help="Path to an input AML file to generate a .hex file from." + ) + Parser.add_argument( + "-o", "--out-dir", dest="OutDir", + help="Output directory where the .hex file will be generated. " + \ + "Default is the input file's directory." + ) + + # Parse the input arguments. + Args = Parser.parse_args() + SplitInputName = "" + + if not os.path.exists(Args.InputFile): + EdkLogger.error(__file__, FILE_OPEN_FAILURE, + ExtraData=Args.InputFile) + return None + else: + with open(Args.InputFile, "rb") as fIn: + Signature = str(fIn.read(4)) + if ("DSDT" not in Signature) and ("SSDT" not in Signature): + EdkLogger.info("Invalid file type. " + \ + "File does not have a valid " + \ + "DSDT or SSDT signature: %s" % Args.InputFile) + return None + + # Get the basename of the input file. + SplitInputName = os.path.splitext(Args.InputFile) + BaseName = os.path.basename(SplitInputName[0]) + + # If no output directory is specified, output to the input directory. + if not Args.OutDir: + Args.OutputFile = os.path.join( + os.path.dirname(Args.InputFile), + BaseName + ".hex" + ) + else: + if not os.path.exists(Args.OutDir): + os.mkdir(Args.OutDir) + Args.OutputFile = os.path.join(Args.OutDir, BaseName + ".hex") + + Args.BaseName = BaseName + + return Args + +## Convert an AML file to a .hex file containing the AML bytecode stored +# in a C array. +# +# @param InputFile Path to the input AML file. +# @param OutputFile Path to the output .hex file to generate. +# @param BaseName Base name of the input file. +# This is also the name of the generated .hex file. +# +def AmlToHex(InputFile, OutputFile, BaseName): + + MacroName = "__{}_HEX__".format(BaseName.upper()) + ArrayName = BaseName.lower() + "_aml_code" + + with open(InputFile, "rb") as fIn, open(OutputFile, "w") as fOut: + # Write header. + fOut.write("// This file has been generated from:\n" + \ + "// \tPython script: " + \ + os.path.abspath(__file__) + "\n" + \ + "// \tInput AML file: " + \ + os.path.abspath(InputFile) + "\n\n" + \ + "#ifndef {}\n".format(MacroName) + \ + "#define {}\n\n".format(MacroName) + ) + + # Write the array and its content. + fOut.write("unsigned char {}[] = {{\n ".format(ArrayName)) + cnt = 0 + byte = fIn.read(1) + while len(byte) != 0: + fOut.write("0x{0:02X}, ".format(ord(byte))) + cnt += 1 + if (cnt % 8) == 0: + fOut.write("\n ") + byte = fIn.read(1) + fOut.write("\n};\n") + + # Write footer. + fOut.write("#endif // {}\n".format(MacroName)) + +## Main method +# +# This method: +# 1- Initialize an EdkLogger instance. +# 2- Parses the input arguments. +# 3- Converts an AML file to a .hex file containing the AML bytecode stored +# in a C array. +# +# @retval 0 Success. +# @retval 1 Error. +# +def Main(): + # Initialize an EdkLogger instance. + EdkLogger.Initialize() + + try: + # Parse the input arguments. + CommandArguments = ParseArgs() + if not CommandArguments: + return 1 + + # Convert an AML file to a .hex file containing the AML bytecode stored + # in a C array. + AmlToHex(CommandArguments.InputFile, CommandArguments.OutputFile, + CommandArguments.BaseName) + except Exception as e: + print(e) + return 1 + + return 0 + +if __name__ == '__main__': + r = Main() + # 0-127 is a safe return range, and 1 is a standard default error + if r < 0 or r > 127: r = 1 + sys.exit(r) -- cgit v1.1