mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-21 23:18:13 +00:00
65 lines
1.9 KiB
Python
Executable File
65 lines
1.9 KiB
Python
Executable File
#!/usr/bin/env python3
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# This file is part of the Trezor project.
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#
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# Copyright (C) 2012-2022 SatoshiLabs and contributors
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#
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# This library is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License version 3
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# as published by the Free Software Foundation.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the License along with this library.
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# If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.
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import sys
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from trezorlib.debuglink import DebugLink
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from trezorlib.transport import enumerate_devices
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# usage examples
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# read entire bootloader: ./mem_read.py 8000000 8000
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# read initial stack pointer: ./mem_read.py 8000000 4
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# an entire bootloader can be later disassembled with:
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# arm-none-eabi-objdump -D -b binary -m arm -M force-thumb memory.dat
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# note that in order for this to work, your trezor device must
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# be running a firmware that was built with debug link enabled
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def find_debug() -> DebugLink:
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for device in enumerate_devices():
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try:
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debug_transport = device.find_debug()
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debug = DebugLink(debug_transport, auto_interact=False)
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debug.open()
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return debug
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except Exception:
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continue
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else:
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print("No suitable Trezor device found")
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sys.exit(1)
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def main() -> None:
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debug = find_debug()
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arg1 = int(sys.argv[1], 16)
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arg2 = int(sys.argv[2], 16)
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step = 0x400 if arg2 >= 0x400 else arg2
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f = open("memory.dat", "wb")
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for addr in range(arg1, arg1 + arg2, step):
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mem = debug.memory_read(addr, step)
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f.write(mem)
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f.close()
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if __name__ == "__main__":
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main()
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