generate nios2 build files

nios2_make_build.sh

#!/usr/bin/env sh


# ------------------
# NOTE:
# you need to have certain binary files in your path
# see below, most of them are in your quartus/bin and nios2eds/bin and nios2eds/sdk2/bin
# for the compiler itself, it resides in nios2eds/bin/gnu/H-x86_64-pc-linux-gnu/bin/
# for me my path currently contains
# +- /opt/intelFPGA/21.1/nios2eds/bin
# +- /opt/intelFPGA/21.1/nios2eds/sdk2/bin
# +- /opt/intelFPGA/21.1/nios2eds/bin/gnu/H-x86_64-pc-linux-gnu/bin
# +- /opt/intelFPGA/21.1/quartus/bin
# +- /opt/intelFPGA/21.1/quartus/sopc_builder/bin
# +- /opt/intelFPGA/21.1/questa_fse/bin
# not sure if all of these are needed
#
# NOTE:
# you might also have to set your QUARTUS_ROOTDIR enviroment variable
#
# NOTE:
# there is a shell loader in nios2eds/nios2_command_shell.sh
# it might be worth using if you get some weird shell/enviorment errors

set -e

# check arguments
if [ -z "$1" ]
  then
    echo "you should provide the .sopcinfo file! 'make_build xxxx.sopcinfo'"
    exit
fi

if [[ "$1" != *.sopcinfo ]]
  then
    echo "this script only accepts .sopcinfo file extensions!"
    exit
fi

sopc="$1"


# bsp
echo "making bsp"
mkdir bsp
pushd bsp

nios2-bsp hal . "../$sopc"
make

popd

# software
echo "making software"
mkdir software
pushd software

echo -ne "int main()\n{\n\n}\n" > main.c
nios2-app-generate-makefile --bsp-dir=../bsp --src-dir=.
make

popd

# finish
echo "------------------"
echo "DONE!"
echo "Your software files are in './software'"
echo "you can build and upload by doing 'make download-elf' in that directory"