Compiling KOS (Linux)

How to compile the KOS toolchain

The following has been tested under Linux Mint 18 on 9/9/2018

This page refers to the tutorial 01_compiling_KOS

First, you need to chmod the kos_setup_script.sh file.

In a terminal, type chmod +x kos_setup_script.sh

then run the script it using ./kos_setup_script.sh

This script will take a long time to complete (10~ mins on Intel i3 6100) as it is downloading a bunch of dependencies and installing them.

Known Issues

You might have some problem with make_banner.sh. If you do, delete the content of both make_banner.sh and banner.h and type run the script again using ./kos_setup_script.sh

Compiling done.

When KOS is fully compiled, it should open a web browser and print this message in the terminal :

Welcome to KOS! Please check out the example in /opt/toolchains/dc/kos/examples/dreamcast/kgl/nehe/nehe02 to get started. After editing main.c, type "make" to create an ELF executable. Run it using an emulator. KOS documentation is at http://gamedev.allusion.net/docs/kos-current. When you start a new shell, please type -source /opt/toolchains/dc/kos/environ.sh- in order to set the environment variables.

Your DC toolchain should now be at /opt/toolchains/dc, so making a link or an alias to get there faster would be useful.

You can make an alias to access your KOS folder using alias Dreamcast="cd /opt/toolchains/dc/kos"

This will allow you to type Dreamcast in your terminal to move directly into your toolchain folder. Of course you can change Dreamcast for whatever you like.

Source environ.sh

In order for your toolchain to work properly, you'll need to source the environ.sh file. If you want to source it automatically, you can edit your .bashrc file using your favorite file editor and add source /opt/toolchains/dc/kos/environ.sh at the end of the file.

Otherwise, just make sure you run source /opt/toolchains/dc/kos/environ.sh in the terminal where you'll be compiling your Dreamcast programs.

You can test that your eviron file is source by running echo $KOS_BASE and getting your KOS path in the terminal.

Compile an example!

Let's try to compile the Hello World exemple.

cd /opt/toolchains/dc/kos/examples/dreamcast/hello and run make

You should get something like this :

rm -f hello.elf romdisk.* kos-cc -c hello.c -o hello.o /opt/toolchains/dc/kos/utils/genromfs/genromfs -f romdisk.img -d romdisk -v -x .svn 0 rom 5b9594b5 [0xffffffff, 0xffffffff] 37777777777, sz 0, at 0x0 1 . [0x801 , 0x381647 ] 0040755, sz 0, at 0x20 1 .. [0x801 , 0x38163b ] 0040755, sz 0, at 0x40 [link to 0x20 ] 1 .keepme [0x801 , 0x38164f ] 0100644, sz 0, at 0x60 /opt/toolchains/dc/kos/utils/bin2o/bin2o romdisk.img romdisk romdisk.o kos-cc -o hello.elf hello.o romdisk.o

Bravo! You compiled your first Dreamcast program.