mirror of
https://git.proxmox.com/git/fwupd
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cfd1f2f42a
The current approach of adding SBAT metadata after linking is creating an image that is badly formed in 2 ways: * The SBAT section's file offset and size are not a multiple of the file alignment. * The SBAT section has a virtual address of zero. EDK2 loads the header here, and so it gets rejected. This changes the approach to match shim, where an object file is created with a .sbat section and then the linker takes care of placing the section at a more appropriate virtual address. See https://github.com/vathpela/gnu-efi/pull/14 for the section addition.
94 lines
1.8 KiB
Python
Executable File
94 lines
1.8 KiB
Python
Executable File
#!/usr/bin/python3
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#
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# Copyright (C) 2021 Javier Martinez Canillas <javierm@redhat.com>
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# Copyright (C) 2021 Richard Hughes <richard@hughsie.com>
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#
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# SPDX-License-Identifier: LGPL-2.1+
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#
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# pylint: disable=missing-docstring, invalid-name
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import subprocess
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import sys
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import argparse
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def _run_objcopy(args):
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argv = [
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args.objcopy,
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"-j",
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".text",
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"-j",
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".sbat",
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"-j",
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".sdata",
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"-j",
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".data",
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"-j",
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".dynamic",
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"-j",
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".dynsym",
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"-j",
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".rel*",
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args.infile,
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args.outfile,
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]
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# aarch64 and arm32 don't have an EFI capable objcopy
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# Use 'binary' instead, and add required symbols manually
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if args.arch in ["aarch64", "arm"]:
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argv.extend(["-O", "binary"])
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else:
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argv.extend(["--target", "efi-app-{}".format(args.arch)])
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try:
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subprocess.run(argv, check=True)
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except FileNotFoundError as e:
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print(str(e))
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sys.exit(1)
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def _run_genpeimg(args):
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# this is okay if it does not exist
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argv = [
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"genpeimg",
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"-d",
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"+d",
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"+n",
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"-d",
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"+s",
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args.outfile,
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]
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try:
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subprocess.run(argv, check=True)
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except FileNotFoundError as _:
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pass
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if __name__ == "__main__":
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parser = argparse.ArgumentParser()
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parser.add_argument(
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"--objcopy",
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default="objcopy",
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help="Binary file to use for objcopy",
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)
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parser.add_argument(
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"--arch",
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default="x86_64",
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help="EFI architecture",
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)
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parser.add_argument(
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"infile",
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help="Input file",
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)
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parser.add_argument(
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"outfile",
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help="Output file",
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)
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_args = parser.parse_args()
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_run_objcopy(_args)
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_run_genpeimg(_args)
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sys.exit(0)
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