amiga-gcc The GNU C Compiler with binutils and other useful tools for cross compiling software for the Commodore Amiga. This is a Makefile based approach to building the amigaos-toolchain, aiming to reduce its build time. Currently, these tools are built: * binutils * gcc with libs for C/C++/ObjC * fd2sfd * fd2pragma * ira * sfdc * vbcc * vlink * libnix * ixemul (not really, but the headers are used) COPYRIGHTS * amiga-netinclude: 'Roadshow' -- Amiga TCP/IP stack, Copyright © 2001-2016 by Olaf Barthel. Freely Distributable. * aros-stuff: libpthread, Copyright (C) 2014 Szilard Biro. * binutils: Free Software Foundation, GNU GENERAL PUBLIC LICENSE V2. * clib2: Copyright (c) 2002-2015 by Olaf Barthel. * fd2pragma: Dirk Stoecker, public domain. * fd2sfd: Martin Blom et al, GNU GENERAL PUBLIC LICENSE V2. * gcc: Free Software Foundation, GNU GENERAL PUBLIC LICENSE V2. * ira: Tim Ruehsen, Ilkka Lehtoranta, Frank Wille, Nicolas Bastien. Freeware. * ixemul: Markus Wild, Rafael W. Luebbert, Leonard Norrgard, Jeff Shepherd, Matthias Fleischer, Hans Verkuil. GNU GENERAL PUBLIC LICENSE V2. * libdebug: ?, GNU GENERAL PUBLIC LICENSE V2. * libnix: Matthias Fleischer, Gunther Nikl. Public Domain. * NDK3.2: Hyperion, unknown license... * newlib: Free Software Foundation, GNU GENERAL PUBLIC LICENSE V2. * sfdc: Martin Blom, GNU GENERAL PUBLIC LICENSE V2. * vasm: copyright in 2002-2022 by Volker Barthelmann, free for non-commercial purposes. * vbcc: copyright in 1995-2022 by Volker Barthelmann, free for non-commercial purposes. * vlink: copyright 1995-2022 by Frank Wille, free for non-commercial purposes. There are also libraries (SDKs) which can be downloaded and installed. These libraries can all be built from source. All of these libraries are provided under their respective licenses. Various AmigaOS-specific patches have been applied to this version of gcc. None if these changes modify the original copyright in any way. All other changes are published under the terms of the GNU GENERAL PUBLIC LICENSE V2. Prerequisites Centos sudo yum install wget gcc gcc-c++ python git perl-Pod-Simple gperf patch autoconf automake make makedepend bison flex ncurses-devel gmp-devel mpfr-devel libmpc-devel gettext-devel texinfo rsync readline-devel Fedora sudo dnf install wget gcc gcc-c++ python git perl-Pod-Simple gperf patch autoconf automake make makedepend bison flex ncurses-devel gmp-devel mpfr-devel libmpc-devel gettext-devel texinfo rsync readline-devel which Ubuntu, Debian sudo apt install make wget git gcc g++ lhasa libgmp-dev libmpfr-dev libmpc-dev flex bison gettext texinfo ncurses-dev autoconf rsync libreadline-dev If building with a normal user, the PREFIX directory must be writable (default is /opt/amiga). You can add the user to an appropriate group. macOS Install Homebrew (https://brew.sh/) or any other package manager first. The compiler will be installed together with XCode. Once XCode and Homebrew are up install the required packages: brew install bash wget make lhasa gmp mpfr libmpc flex gettext gnu-sed texinfo gcc@12 make autoconf bison By default macOS uses an outdated version of bash. Therefore, on macOS host always pass the the SHELL=/usr/local/bin/bash parameter (or any other valid path pointing to bash), e.g.: make all SHELL=$(brew --prefix)/bin/bash On macOS it may be also necessary to point to the brew version of gcc make and autoconf, e.g.: CC=gcc-12 CXX=g++-12 gmake all SHELL=$(brew --prefix)/bin/bash NOTE * You might need to use the brew version of make when building your projects (e.g.: gmake). Link failures are known to happen with GNU Make 3.81, but to succeed with GNU Make 4.4.1 on the same machine and project * If you want m68k-amigaos-gdb then you have to build it with gcc * The gdb build also needs a more recent bison version than the one installed in macOS. Use the version from Homebrew instead. It's keg only so you need to add it to your PATH manually: export PATH=$(brew --prefix bison)/bin:$PATH * This version of gcc supports building binaries optimised for the various Motorola 68K series CPUs from the 68000 to the 68060 and also features some optimisations for the Vampire/Apollo 68080. macOS on M1 Native builds on M1 Macs are now directly supported. Windows with Cygwin Install cygwin via setup.exe and add wget. Then open cygwin shell and run: wget https://raw.githubusercontent.com/transcode-open/apt-cyg/master/apt-cyg install apt-cyg /bin apt-cyg install gcc-core gcc-g++ python git perl-Pod-Simple gperf patch automake make makedepend bison flex libncurses-devel python-devel gettext-devel libgmp-devel libmpc-devel libmpfr-devel rsync Windows with msys2 Precompiled suite with installer: http://franke.ms/download/setup-amiga-gcc.exe pacman -S git base-devel gcc flex gmp-devel mpc-devel mpfr-devel ncurses-devel rsync autoconf automake Also note that you MUST cd into an absolute path e.g. cd /c/msys64/home/test/amiga-gcc/ before running make, or builds may fail, because some files aren't found correctly (that's a msys2 bug). Ubuntu running on the Windows 10 Linux subsystem same as normal ubuntu Howto Clone and Download All You Need git clone https://github.com/bebbo/amiga-gcc cd amiga-gcc make update Overview make help yields: make help display this help make all build and install all make builds a target: binutils, gcc, fd2sfd, fd2pragma, ira, sfdc, vbcc, vlink, libnix, ixemul, libgcc make clean remove the build folder make clean- remove the target's build folder make drop-prefix remove all content from the prefix folder, beware! make update perform git pull for all targets make update- perform git pull for the given target display which targets can be build, you'll mostly use *make all *make clean *make drop-prefix to use NDK3.2 add NDK=3.2 to the make parameters Prefix The default prefix is /opt/amiga. You may specify a different prefix by adding PREFIX=yourprefix to make command. E.g. make all PREFIX=/here/or/there The build performs the installation automatically, there is no separate make install step. Because of this, you must make sure that the target PREFIX directory is writable for the user who is doing the build. If the PREFIX directory points to a directory where the user already has appropriate permissions the below steps can be ommited and the directory will be created by the build process. sudo mkdir /opt/amiga sudo chgrp users /opt/amiga sudo chmod 775 /opt/amiga sudo usermod -a -G users username After adding the user to the group, you may have to logout and login again to apply the changes to your user. Building In most cases you can simply run sudo make all. You can use -j to speed up the build, adjusting the value of -j to the number of cores you wish to use for the build process. make clean make drop-prefix time make all -j4 The above commands take roughly 10 minutes on my laptop running Ubuntu yet the same commands take forever running cygwin on Windows. Kickstart 1.3 If you plan to develop for Kickstart 1.3 you should use -mcrt=nix13 in your compiler commandline m68k-amigaos-gcc test.cpp -mcrt=nix13 The include files for 1.3 - which are picked up by the compiler if -mcrt=nix13 is used - can be found at /m68k-amigaos/ndk13-include i.E. /opt/amiga/m68k-amigaos/ndk13-include Libraries/Runtimes You can select one of the various runtimes. My favorite is libnix which is selected by specifying -noixmeul or -mcrt=nix20. Always specify this as the last parameter and only once. These are the available runtimes: * nothing specifed: newlib based libraries for Kickstart 2.0+ * -noixemul or -mcrt=nix20: the libnix libraries for Kickstart 2.0+ * -mcrt=nix13: the libnix libraries for Kickstart 1.3 * -mcrt=clib2: the clib2 libraries. * -mcrt=ixemul: the ixemul libraries for Kickstart 2.0+, requires an installed ixemul.library Checking gcc To check the built version you may consider to run the gcc dejagnu tests. This does not cover everything but it's a start. The tests are using my improved version of VAMOS (downstream of https://github.com/cnvogelg/amitools) to emulate the Amiga, and right now not all improvements went back into the upstream. Debian / Ubuntu sudo apt install dejagnu sudo cp baseboards/* /usr/share/dejagnu/baseboards pip install -U git+https://github.com/bebbo/amitools.git make check macOS brew install dejagnu cp baseboards/* $(brew --prefix)/opt/dejagnu/share/dejagnu/baseboards pip install -U git+https://github.com/bebbo/amitools.git make check Version management This project does not use git submodules since it's to inconvenient to work with develop and release branches in each module and the main module. Instead the Makefile provides some targets to switch to an older state for all modules. Switching amiga-gcc to a given date Use make to switch all modules to a given date. You may also add the time make v date=2021-04-01 Switching amiga-gcc back to the branches Run make to switch all modules back to the branch make v Show the current commit for all submodules This lists all modules with the last commit. Useful if you switched to a given date to show what's where. make l Switch a module to a different branch You can switch modules to different branches. E.g. make branch mod=binutils branch=devel1 The default branches and repositories are in the file default-repos, the local state is managed in the file .repos. Note that the gcc default branch is now amiga6 and there is also an amiga13.1 branch. To switch gcc to a specific branch use make branch branch=amiga13.1 mod=gcc If you start from scratch, switch gcc as soon as possible, e.g.: sudo mkdir -p /opt/amiga13 sudo chown $USER /opt/amiga13 git clone https://github.com/bebbo/amiga-gcc cd amiga-gcc export PREFIX=/opt/amiga13 make branch branch=amiga13.1 mod=gcc make all -j20 Notable branches of gcc * amiga6: The default branch providing gcc-6.5.0b with a lot of hacks^^ * amiga13.3: gcc-13.3.0 supports register parameters * amiga15.2: gcc-15.2.0 supports register parameters * 68080regs: gcc-6.5.0b supporting the B0-B7/E0-E7 AMMX registers of the Apollo 68080 (experimental) Fortran support m68k-amigaos-gfortran is available now too. To build it add ADDLANG=fortran: make all -j20 ADDLANG=fortran The example from https://gcc.gnu.org/wiki/GFortranGettingStarted does work, you have to link using gcc: > m68k-amigaos-gfortran -Os fprog.f90 -c > m68k-amigaos-gcc -Os -noixemul sub.c -c > m68k-amigaos-gcc fprog.o sub.o -o fprog -lgfortran -noixemul -lm > vamos fprog abcd 5 4711 4712.000000 13 14