mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-25 07:48:10 +00:00
47 lines
1.2 KiB
Python
Executable File
47 lines
1.2 KiB
Python
Executable File
#!/usr/bin/env python3
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from trezorlib.debuglink import DebugLink
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from trezorlib.transport import enumerate_devices
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import sys
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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():
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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():
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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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