Add install-cross-toolchain Makefile target.
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Makefile
58
Makefile
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@ -113,6 +113,49 @@ install-build-tools:
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$(MAKE) -C sf install
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$(MAKE) -C tix install
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.PHONY: clean-cross-compiler
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clean-cross-compiler:
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rm -rf ports/binutils/binutils.build
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rm -rf ports/gcc/gcc.build
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.PHONY: install-cross-compiler
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install-cross-compiler:
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PATH="$(PREFIX)/sbin:$(PREFIX)/bin:$(PATH)" \
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$(MAKE) extract-ports PACKAGES='binutils gcc'
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rm -rf ports/binutils/binutils.build
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mkdir ports/binutils/binutils.build
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cd ports/binutils/binutils.build && \
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../binutils/configure \
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--target="$(TARGET)" \
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--prefix="$(PREFIX)" \
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--with-sysroot="$(SYSROOT)" \
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--disable-werror
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$(MAKE) -C ports/binutils/binutils.build
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$(MAKE) -C ports/binutils/binutils.build install
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rm -rf ports/gcc/gcc.build
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mkdir ports/gcc/gcc.build
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cd ports/gcc/gcc.build && \
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PATH="$(PREFIX)/bin:$(PATH)" \
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../gcc/configure \
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--target="$(TARGET)" \
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--prefix="$(PREFIX)" \
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--with-sysroot="$(SYSROOT)" \
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--enable-languages=c,c++
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PATH="$(PREFIX)/bin:$(PATH)" \
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$(MAKE) -C ports/gcc/gcc.build all-gcc all-target-libgcc
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PATH="$(PREFIX)/bin:$(PATH)" \
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$(MAKE) -C ports/gcc/gcc.build install-gcc install-target-libgcc
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rm -rf ports/gcc/gcc.build
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.PHONY: clean-cross-toolchain
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clean-cross-toolchain: clean-sysroot clean-build-tools clean-cross-compiler
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.PHONY: install-cross-toolchain
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install-cross-toolchain: install-build-tools
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$(MAKE) clean-sysroot
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$(MAKE) sysroot-base-headers HOST=$(TARGET) PREFIX=
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$(MAKE) install-cross-compiler
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.PHONY: sysroot-fsh
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sysroot-fsh:
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mkdir -p "$(SYSROOT)"
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@ -331,10 +374,10 @@ distclean-ports:
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build-aux/clean-ports.sh distclean
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.PHONY: mostlyclean
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mostlyclean: clean-core distclean-ports clean-builds clean-release clean-sysroot
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mostlyclean: clean-core distclean-ports clean-builds clean-release clean-sysroot clean-cross-compiler
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.PHONY: distclean
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distclean: clean-core distclean-ports clean-builds clean-release clean-mirror clean-repository clean-sysroot
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distclean: clean-core distclean-ports clean-builds clean-release clean-mirror clean-repository clean-sysroot clean-cross-compiler
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.PHONY: most-things
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most-things: sysroot iso
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@ -351,6 +394,17 @@ sysroot-base-headers-all-archs:
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$(MAKE) clean clean-sysroot
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$(MAKE) sysroot-base-headers HOST=x86_64-sortix
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.PHONY: install-cross-compiler-all-archs
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install-cross-compiler-all-archs:
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$(MAKE) clean-cross-compiler
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$(MAKE) install-cross-compiler TARGET=i686-sortix
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$(MAKE) clean-cross-compiler
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$(MAKE) install-cross-compiler TARGET=x86_64-sortix
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.PHONY: install-cross-toolchain-all-archs
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install-cross-toolchain-all-archs: install-build-tools
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$(MAKE) install-cross-compiler-all-archs
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.PHONY: all-archs
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all-archs:
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$(MAKE) clean clean-sysroot
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@ -43,25 +43,13 @@ For instance, on an apt-based system you might install the
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.Sy grub-pc-bin
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package.
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.Pp
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You will also need the source code for:
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.Bl -bullet -compact
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.It
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Sortix
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.It
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Sortix binutils
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.It
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Sortix gcc
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.El
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.Pp
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The overall process is:
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.Bl -bullet -compact
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.It
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Retrieving all the source code.
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Retrieving the source code.
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.It
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Installing the build tools.
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.It
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Creating a system root with the system headers.
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.It
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Creating a cross-compiler.
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.It
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Cross-compiling the operating system.
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@ -70,15 +58,9 @@ Cross-compiling the operating system.
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You can find the latest Sortix source code at
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.Lk https://sortix.org/source/
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.Pp
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You can find the latest Sortix binutils source code at
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.Lk https://sortix.org/toolchain/sortix-binutils-latest.tar.xz
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.Pp
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You can find the latest Sortix gcc source code at
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.Lk https://sortix.org/toolchain/sortix-gcc-latest.tar.xz
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.Pp
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This is a compiler toolchain that has been modified to support Sortix.
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The toolchain is sometimes updated and you will need the latest toolchain to
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keep building the latest code.
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The source code for the ports are in the ports subdirectory as URLs to the
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upstream tarball, alongside any patches to the upstream release, which are
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downloaded when each port is built.
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.Ss Variables
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This document will use meta-syntactic shell variables to denote where you have
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choice.
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@ -98,7 +80,7 @@ This could for instance be
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.It Sy $CROSS_PREFIX
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The directory path where the cross-toolchain will be installed.
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This could for instance be
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.Pa /home/user/opt/x86_64-sortix .
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.Pa /home/user/opt/sortix-toolchain .
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.El
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.Pp
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The following sections describe these variables in detail.
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@ -111,14 +93,6 @@ This place will contain the operating system code.
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We'll refer to that location as
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.Sy $SORTIX.
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.Pp
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Don't store the source code for the cross-toolchain (binutils and gcc) here.
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Store the source code for those programs somewhere else, such as in
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.Pa ~/src .
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It doesn't make any sense to store the cross toolchain within the Sortix
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directory.
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The only toolchain that belongs here is the native toolchain that runs on Sortix
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(and not on your current operating system).
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.Pp
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Don't make a sortix directory and git clone inside it, you redundantly get a
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.Pa ~/sortix/sortix
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directory instead.
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@ -130,12 +104,12 @@ and
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.Sy x86_64-sortix .
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In this guide we will refer to that platform triplet as
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.Sy $SORTIX_PLATFORM .
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If you want to build another platform afterwards, then you will have to follow
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this guide again.
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If you want to build another platform afterwards, then repeat the steps with
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the other platform.
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.Ss Cross-Prefix
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You should install your cross-toolchain into a useful and isolated directory
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such as
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.Pa $HOME/opt/$SORTIX_PLATFORM .
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.Pa $HOME/opt/sortix-toolchain .
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This allows you to easily dispose of the directory and keeps it isolated from
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the rest of the system.
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We'll refer to that location as
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@ -160,44 +134,6 @@ You can make this permanent by adding that line to your
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or the applicable file for your shell and system.
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Consult your shell documentation.
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Otherwise type it in all Sortix-related shells before doing anything.
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.Ss Build Tools
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You need to install some additional build tools as they are needed to build the
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operating system.
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The installed build tools must be in sync with the source code as described in
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.Xr development 7 .
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You can install the build utilities by running:
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.Bd -literal
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cd "$SORTIX" &&
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make clean-build-tools &&
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make PREFIX="$CROSS_PREFIX" build-tools &&
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make PREFIX="$CROSS_PREFIX" install-build-tools
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.Ed
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.Pp
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These tools produce platform independent output so you may wish to install them
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into
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.Pa $HOME/bin
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and
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.Pa $HOME/sbin
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or
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.Pa /usr/local/bin
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and
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.Pa /usr/local/sbin
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or where it suits you in your
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.Ev PATH .
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.Ss System Root with System Headers
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Building the compiler requires the standard library headers being available.
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This can be satisfies by creating a system root with the system headers:
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.Bd -literal
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cd "$SORTIX" &&
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make distclean &&
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make sysroot-base-headers HOST=$SORTIX_PLATFORM
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.Ed
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.Pp
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This will create a system root at
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.Pa $SORTIX/sysroot .
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The system root directory is always the
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.Pa sysroot
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subdirectory of the main source code directory.
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.Ss Cross-toolchain Dependencies
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You need to install these libraries (and the development packages) before
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building binutils and gcc:
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@ -215,46 +151,43 @@ libmpc
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.El
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.Pp
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Consult the official binutils and gcc documentation for the exact dependencies.
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.Ss binutils
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Assuming you extracted the binutils to
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.Pa ~/src/sortix-binutils ,
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you can build binutils out-of-directory by running:
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.Ss Cross-toolchain
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You can build the full cross-toolchain containing the build tools and the
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cross-compiler (binutils and gcc) by running:
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.Bd -literal
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mkdir ~/src/binutils-build &&
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cd ~/src/binutils-build &&
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../sortix-binutils/configure \\
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--target=$SORTIX_PLATFORM \\
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--with-sysroot="$SORTIX/sysroot" \\
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--prefix="$CROSS_PREFIX" \\
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--disable-werror &&
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make &&
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make install
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cd "$SORTIX" &&
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make clean-cross-toolchain &&
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make PREFIX="$CROSS_PREFIX" TARGET=$SORTIX_PLATFORM install-cross-toolchain
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.Ed
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.Pp
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You can remove the temporary
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.Pa ~/src/binutils-build
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directory when finished.
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.Ss gcc
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Assuming you extracted the gcc to
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.Pa ~/src/sortix-gcc ,
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you can build gcc out-of-directory by running:
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This command builds and installs the build tools and the cross-compiler.
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The build downloads the source code for binutils and gcc modified with support
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for this operating system.
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.Pp
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If you want to build a toolchain for every architecture at once, use the
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.Sy install-cross-toolchain-all-archs
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makefile target instead and omit the
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.Sy TARGET
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variable.
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.Pp
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.Xr following-development 7
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gains a notice whenever the build tools or cross-compiler must be upgraded.
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.Ss Build Tools
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The above
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.Sy install-cross-toolchain
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command already built the build tools needed to bootstrap the operating system.
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.Pp
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However, whenever they change you can reinstall the build utilities only by
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running:
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.Bd -literal
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mkdir ~/src/gcc-build &&
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cd ~/src/gcc-build &&
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../sortix-gcc/configure \\
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--target=$SORTIX_PLATFORM \\
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--with-sysroot="$SORTIX/sysroot" \\
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--prefix="$CROSS_PREFIX" \\
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--enable-languages=c,c++ &&
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make all-gcc all-target-libgcc &&
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make install-gcc install-target-libgcc
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cd "$SORTIX" &&
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make clean-build-tools &&
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make PREFIX="$CROSS_PREFIX" install-build-tools
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.Ed
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.Pp
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You can remove the temporary
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.Pa ~/src/gcc-build
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directory when finished.
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Notice how special make targets are used to selectively build only parts of gcc.
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It is not possible or desirable to build all of gcc here.
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.Xr following-development 7
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gains a notice whenever the build tools must be upgraded, as they must match the
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source code being built.
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.Ss Building Sortix
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With the build tools and cross-compiler in the
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.Ev PATH
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@ -96,9 +96,14 @@ Clean the component directories and the port source code.
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.Sy ( clean-core , clean-ports )
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.It Sy clean-build-tools
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Clean the directories of all build tools.
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.It Sy clean-cross-compiler
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Clean the directories for the cross-compiler.
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.It Sy clean-cross-toolchain
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Clean the directories for the build tools and cross-compiler.
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.Sy ( clean-build-tools , clean-cross-compiler )
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.It Sy distclean
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Run every clean target such that the source code is ready for distribution.
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.Sy ( clean-builds , clean-core , clean-mirror , clean-release , clean-repository , clean-sysroot , distclean-ports )
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.Sy ( clean-builds , clean-core , clean-mirror , clean-release , clean-repository , clean-sysroot , distclean-ports, clean-cross-compiler )
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.It Sy distclean-ports
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Remove the port source code extractions.
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.It Sy extract-ports
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@ -109,6 +114,11 @@ in
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and apply the appropriate patches.
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.It Sy install-build-tools
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Install all build tools after making them.
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.It Sy install-cross-compiler
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Install the cross-compiler after making it.
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.It Sy install-cross-toolchain
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Install the build tools and cross-compiler after making them.
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.Sy ( install-build-tools , install-cross-compiler )
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.It Sy iso
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Create a release iso in the
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.Pa /src/builds
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@ -130,7 +140,7 @@ The local mirror has the same structure as the remote mirror and can be used as
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a remote mirror.
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.It Sy mostlyclean
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Clean everything except binary packages and the mirror of upstream releases.
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.Sy ( clean-builds , clean-ports , clean-release , clean-sysroot , distclean-ports )
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.Sy ( clean-builds , clean-ports , clean-release , clean-sysroot , distclean-ports, clean-cross-compiler )
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.It Sy presubmit
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Verify the port configuration
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.Sy ( verify-ports ) ,
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