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README.md

armv4t

An incredibly simple emulator to run elf binaries compiled with arm-none-eabi-cc -march=armv4t.

This emulator isn't based off any particular system -- it's moreso just a test-bed for showing off various bits of gdbstub functionality.

Usage

Run gdb-arm-none-eabi (or alternatively, gdb-multiarch) from the test_bin directory to automatically connect to the emulator + load debug symbols for the emulated binary.

This example can be run using:

cargo run --example armv4t --features=std

NOTE: If debug symbols couldn't be loaded, try rebuilding test.elf locally (requires the arm-none-eabi toolchain to be installed), and recompiling the example.

Unix Domain Sockets

GDB versions since ~2018 support running a debugging session over Unix Domain Sockets (UDS). Debugging over UDS can feel much snappier than debugging over loopback TCP.

Running the example with the --uds flag will bind the GdbStub to a socket at /tmp/armv4t_gdb.

This feature is only supported on Unix-like systems.