345dedbad2
Use list and set comprehension to simplify code. Also, gently handle invalid gdb filenames. Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Message-Id: <20241015145848.387281-1-gustavo.romero@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20241023113406.1284676-16-alex.bennee@linaro.org>
90 lines
2.5 KiB
Python
90 lines
2.5 KiB
Python
#!/usr/bin/env python3
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# coding: utf-8
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#
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# Probe gdb for supported architectures.
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#
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# This is required to support testing of the gdbstub as its hard to
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# handle errors gracefully during the test. Instead this script when
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# passed a GDB binary will probe its architecture support and return a
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# string of supported arches, stripped of guff.
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#
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# Copyright 2023 Linaro Ltd
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#
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# Author: Alex Bennée <alex.bennee@linaro.org>
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#
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# This work is licensed under the terms of the GNU GPL, version 2 or later.
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# See the COPYING file in the top-level directory.
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#
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# SPDX-License-Identifier: GPL-2.0-or-later
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import argparse
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import re
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from subprocess import check_output, STDOUT, CalledProcessError
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import sys
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# Mappings from gdb arch to QEMU target
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MAP = {
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"alpha" : ["alpha"],
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"aarch64" : ["aarch64", "aarch64_be"],
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"armv7": ["arm"],
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"armv8-a" : ["aarch64", "aarch64_be"],
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"avr" : ["avr"],
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# no hexagon in upstream gdb
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"hppa1.0" : ["hppa"],
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"i386" : ["i386"],
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"i386:x86-64" : ["x86_64"],
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"Loongarch64" : ["loongarch64"],
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"m68k" : ["m68k"],
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"MicroBlaze" : ["microblaze"],
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"mips:isa64" : ["mips64", "mips64el"],
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"or1k" : ["or1k"],
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"powerpc:common" : ["ppc"],
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"powerpc:common64" : ["ppc64", "ppc64le"],
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"riscv:rv32" : ["riscv32"],
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"riscv:rv64" : ["riscv64"],
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"s390:64-bit" : ["s390x"],
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"sh4" : ["sh4", "sh4eb"],
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"sparc": ["sparc"],
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"sparc:v8plus": ["sparc32plus"],
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"sparc:v9a" : ["sparc64"],
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# no tricore in upstream gdb
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"xtensa" : ["xtensa", "xtensaeb"]
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}
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def do_probe(gdb):
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try:
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gdb_out = check_output([gdb,
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"-ex", "set architecture",
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"-ex", "quit"], stderr=STDOUT, encoding="utf-8")
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except (OSError) as e:
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sys.exit(e)
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except CalledProcessError as e:
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sys.exit(f'{e}. Output:\n\n{e.output}')
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found_gdb_archs = re.search(r'Valid arguments are (.*)', gdb_out)
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targets = set()
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if found_gdb_archs:
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gdb_archs = found_gdb_archs.group(1).split(", ")
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mapped_gdb_archs = [arch for arch in gdb_archs if arch in MAP]
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targets = {target for arch in mapped_gdb_archs for target in MAP[arch]}
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# QEMU targets
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return targets
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def main() -> None:
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parser = argparse.ArgumentParser(description='Probe GDB Architectures')
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parser.add_argument('gdb', help='Path to GDB binary.')
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args = parser.parse_args()
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supported = do_probe(args.gdb)
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print(" ".join(supported))
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if __name__ == '__main__':
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main()
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