2bc5a8b71a
The following command was run: ``` pre-commit run --all-files ``` This ensures all the files in the repository are formatted to pass our checks. Change-Id: Ia2fe3529a50ad925d1076a612d60a4280adc40de Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/62572 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com> Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
119 lines
3.6 KiB
Python
119 lines
3.6 KiB
Python
# -*- mode:python -*-
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# Copyright (c) 2018, 2020 ARM Limited
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#
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# The license below extends only to copyright in the software and shall
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# not be construed as granting a license to any other intellectual
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# property including but not limited to intellectual property relating
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# to a hardware implementation of the functionality of the software
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# licensed hereunder. You may use the software subject to the license
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# terms below provided that you ensure that this notice is replicated
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# unmodified and in its entirety in all distributions of the software,
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# modified or unmodified, in source code or in binary form.
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#
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# Copyright (c) 2004-2005 The Regents of The University of Michigan
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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import os.path
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from gem5_scons import Transform, MakeAction
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from blob import bytesToCppArray
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from code_formatter import code_formatter
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import SCons.Node.Python
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def build_blob(target, source, env):
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"""
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Embed an arbitrary blob into the gem5 executable,
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and make it accessible to C++ as a byte array.
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"""
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with open(str(source[0]), "rb") as f:
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data = f.read()
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symbol = str(source[1])
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cc, hh = target
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hh_code = code_formatter()
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hh_code(
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"""\
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#include <cstddef>
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#include <cstdint>
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namespace gem5
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{
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namespace Blobs
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{
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extern const std::size_t ${symbol}_len;
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extern const std::uint8_t ${symbol}[];
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} // namespace Blobs
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} // namespace gem5
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"""
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)
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hh_code.write(str(hh))
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include_path = os.path.relpath(hh.abspath, env["BUILDDIR"])
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cc_code = code_formatter()
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cc_code(
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"""\
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#include "${include_path}"
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namespace gem5
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{
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namespace Blobs
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{
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const std::size_t ${symbol}_len = ${{len(data)}};
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"""
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)
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bytesToCppArray(cc_code, symbol, data)
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cc_code(
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"""
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} // namespace Blobs
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} // namespace gem5
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"""
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)
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cc_code.write(str(cc))
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blob_action = MakeAction(build_blob, Transform("EMBED BLOB"))
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def blob_emitter(target, source, env):
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symbol = str(target[0])
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cc_file = env.File(symbol + ".cc")
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hh_file = env.File(symbol + ".hh")
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return [cc_file, hh_file], [source, SCons.Node.Python.Value(symbol)]
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def Blob(env):
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blob_builder = env.Builder(action=blob_action, emitter=blob_emitter)
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env.Append(BUILDERS={"Blob": blob_builder})
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