ARM assembly test

Reference

• ARM System Developer's Guide (2004)

Environment

OS: Ubuntu 20.04 x64 LTS
VM: QEMU v9.0.0 (https://www.qemu.org/)
ARM Toolchain: arm-gnu-toolchain-13.x

ARM Toolchain

download:
https://developer.arm.com/downloads/-/arm-gnu-toolchain-downloads

$ cd $HOME
$ mkdir arm-toolchain
$ cd arm-toolchain

1. AArch32
// arm-gnu-toolchain-13.2.Rel1-x86_64-arm-none-linux-gnueabihf
$ wget https://developer.arm.com/-/media/Files/downloads/gnu/13.2.rel1/binrel/arm-gnu-toolchain-13.2.rel1-x86_64-arm-none-linux-gnueabihf.tar.xz?rev=adb0c0238c934aeeaa12c09609c5e6fc&hash=B119DA50CEFE6EE8E0E98B4ADCA4C55F
$ tar xJvf arm-gnu-toolchain-13.2.rel1-x86_64-arm-none-linux-gnueabihf.tar.xz

2. AArch64
// arm-gnu-toolchain-13.2.Rel1-x86_64-aarch64-none-linux-gnu
$ wget https://developer.arm.com/-/media/Files/downloads/gnu/13.2.rel1/binrel/arm-gnu-toolchain-13.2.rel1-x86_64-aarch64-none-linux-gnu.tar.xz?rev=22c39fc25e5541818967b4ff5a09ef3e&hash=B9FEDC2947EB21151985C2DC534ECCEC
$ tar xJvf arm-gnu-toolchain-13.2.rel1-x86_64-aarch64-none-linux-gnu.tar.xz


// AArch32 bare-metal target (arm-none-eabi)
// for gdb (arm-none-eabi-gdb)
$ sudo apt-get install libncursesw5 libncursesw5-dev


// path
$ echo "export PATH=$PATH:/home/arm-toolchain/arm-gnu-toolchain-13.2.Rel1-x86_64-aarch64-none-linux-gnu/bin" >> $HOME/.profile
$ echo "export PATH=$PATH:/home/arm-toolchain/arm-gnu-toolchain-13.2.Rel1-x86_64-arm-none-linux-gnueabihf/bin" >> $HOME/.profile
$ source $HOME/.profile

QEMU Build Instructions

$ cd $HOME

$ sudo apt-get update
$ sudo apt-get install build-essential gdb gdb-multiarch
$ sudo apt-get install python3 python3-pip ninja-build
$ sudo apt-get install pkg-config libglib2.0-dev
$ sudo apt-get install libslirp-dev
$ sudo apt-get install libpixman-1-dev
$ pip install sphinx
$ pip install sphinx_rtd_theme

// download QEMU 9.0.0
$ wget https://download.qemu.org/qemu-9.0.0.tar.xz
$ tar xvJf qemu-9.0.0.tar.xz
$ cd qemu-9.0.0

// ARM, AARCH64, x86_64
$ ./configure --target-list="arm-softmmu,arm-linux-user,aarch64-linux-user,aarch64-softmmu,x86_64-softmmu,x86_64-linux-user"
$ make

// with enable GTK
$ sudo apt-get install libgtk-3-dev
$ ./configure --target-list="arm-softmmu,arm-linux-user,aarch64-linux-user,aarch64-softmmu,x86_64-softmmu,x86_64-linux-user" --enable-gtk
$ make


// path
$ ln -s $HOME/qemu-9.0.0/build/qemu-arm .
$ ln -s $HOME/qemu-9.0.0/build/qemu-aarch64 .
$ ln -s $HOME/qemu-9.0.0/build/qemu-system-arm .
$ ln -s $HOME/qemu-9.0.0/build/qemu-system-aarch64 .

Build and Debugging

1. Build

$ git clone https://github.com/godmode2k/arm_assembly_test.git
$ cd arm_assembly_test

$ arm-none-linux-gnueabihf-as -o test_arm_asm_aarch32.o test_arm_asm_aarch32.s -g
$ arm-none-linux-gnueabihf-ld -o test_arm_asm_aarch32.elf test_arm_asm_aarch32.o -g

or

$ sh build_test_arm_asm_aarch32.sh && $HOME/qemu-arm -g 8888 ./test_arm_asm_aarch32.elf


2. Debugging
// (Optional)
// GEF (GDB Enhanced Features, https://github.com/hugsy/gef)
$ wget -O ~/.gdbinit-gef.py -q https://gef.blah.cat/py
$ echo source ~/.gdbinit-gef.py >> ~/.gdbinit


// GDB
$ gdb-multiarch -tui


or

$ arm-none-linux-gnueabihf-gdb
$ aarch64-none-linux-gnu-gdb


(gdb) target remote :8888