DESERTEMU

A code analysis platform for emulated embedded devices

Quick Start

Start the build platform and emulation suite with: docker compose -f docker/docker-compose.yml up

On build platform:

• x86:

  gcc -o basic.x86 basic.c -g

• arm (compile static to avoid needing ld-linux-armhf.so.3 and arm's libc at runtime until I know how to install.)

  arm-linux-gnueabihf-gcc-11 -static -O0 -g -o basic.arm basic.c

On emulator (run with arg and wait for debugger):

• x86:

  qemu-x86_64-static -g 9000 basic.x86 <first argument>

• arm:

  qemu-arm-static -g 9000 basic.arm <first argument>

On build platform (in same dir as basic.x86):

  gdb-multiarch -ex "symbol-file basic.<arch>" -ex "target remote desertemu-emulator-1:9000"
  (gdb) break main
  (gdb) display data
  (gdb) continue

So this tells gdb to use symbols from basic.x86, connect to the target 'remote', set a breakpoint.

Now step through ([n]ext) and see what happens to data.buf vs data.pwd