This commit is contained in:
Ada Orbit 2026-04-15 19:23:44 +02:00
parent 948d39427f
commit cad5c37dab
6 changed files with 88 additions and 32 deletions

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@ -148,6 +148,9 @@ make install-strip
## Compiling GCC (Part 2)
> [!WARNING]
> Building gcc with c++ does not work
Build now the c++ support with
```bash
@ -167,7 +170,7 @@ mkdir build
cd build
cmake ..
make
make install/local
make install/local # do not want to install it to the system but to
```
## Adding our custom compiler to GPRBuild
@ -184,10 +187,3 @@ Sources used:
---
Copyright (c) 2026 Ada Orbit. All Rights Reserved.
## TODO
Idea space thingy
Maybe try installing gcc the way Lephexnior does and just sneakally add --language=ada and no adalib to build everything?

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@ -1,4 +1,7 @@
#!/usr/bin/env bash
# Copyright (c) 2026 Ada Orbit. All Rights Reserved.
# simple small script to build gcc with superh and ada support
set -e
@ -8,30 +11,31 @@ ADACASIO_GCC_VERSION="15.2.0"
ADACASIO_BINUTILS_URL="https://ftp.gnu.org/gnu/binutils/binutils-$ADACASIO_BINUTILS_VERSION.tar.gz"
ADACASIO_GCC_URL="https://ftp.gnu.org/gnu/gcc/gcc-15.2.0/gcc-$ADACASIO_GCC_VERSION.tar.gz"
ADACASIO_PREFIX="$(pwd)/sysroot"
ADACASIO_TARGET="sh-elf"
ADACASIO_TARGET="sh3eb-elf"
# Install dependencies
# For now I have only tested Fedora 43. YMMV
sudo -i
dnf install mg
dnf upgrade
dnf install @c-development gnat gprbuild gmp-devel mpfr-devel libmpc-devel git
#sudo -i
#dnf install mg
#dnf upgrade
#dnf install @c-development gnat gprbuild gmp-devel mpfr-devel libmpc-devel git
# prepare configure and build enviornment
wget -O binutils.tar.gz $ADACASIO_BINUTILS_URL
wget -O gcc.tar.gz $ADACASIO_GCC_URL
#wget -O binutils.tar.gz $ADACASIO_BINUTILS_URL
#wget -O gcc.tar.gz $ADACASIO_GCC_URL
tar -xf binutils.tar.gz
tar -xf gcc.tar.gz
# Got the command list from https://git.planet-casio.com/Lephenixnoir/sh-elf-binutils Method 3
# Step 2. configure and build GCC and binutils
mkdir build-binutils build-gcc $ADACASIO_PREFIX
cd build-binutils
../binutils-*/configure \
--prefix="$ADACASIO_PREFIX" \
--target="sh3eb-elf" \
--with-multilib-list="m3,m4-nofpu" \
--program-prefix="$ADACASIO_TARGET-" \
--program-prefix="" \
--enable-libssp \
--enable-lto
@ -42,14 +46,14 @@ make install-strip
# https://git.planet-casio.com/Lephenixnoir/sh-elf-gcc
cd ../build-gcc/
../gcc-$VERSION/configure \
--prefix="$SYSROOT" \
../gcc-*/configure \
--prefix="$ADACASIO_PREFIX" \
--target="sh3eb-elf" \
--with-multilib-list="m3,m4-nofpu" \
--enable-languages="c,c++,ada" \
--disable-libada \
--without-headers \
--program-prefix="sh-elf-" \
--program-prefix="$ADACASIO_TARGET-" \
--enable-libssp \
--enable-lto \
--enable-clocale="generic" \
@ -61,5 +65,24 @@ cd ../build-gcc/
make -j$(nproc) all-gcc all-target-libgcc
make install-strip-gcc install-strip-target-libgcc
# TODO:
# install openlibm and fxlibc for C++ support later on
# TODO: C++ support is currenlty not working on gcc15 with superh target
# It does work with gcc14 but ada does not :/
# I'll leave the c++ flags here for future use
cd ..
export PATH="$PATH:$ADACASIO_PREFIX/bin"
ADACASIO_GCCPREFIX="$($ADACASIO_TARGET-gcc --print-file-name=.)"
# WARNING: this library uses "sh3eb-elf-gcc"
# TODO: replace sh3eb-elf-gcc with $ADACASIO_TARGET-gcc
git clone https://github.com/Jonimoose/libfxcg.git
cd libfxcg
make
cp lib/* ../sysroot/lib/
cp -r include/* ../sysroot/lib/gcc/sh3eb-elf/15.2.0/include/
# Going back to gcc-build to build gnattools using the libc
cd ../build-gcc
make -C gcc cross-gnattools
make install-strip

@ -1 +0,0 @@
Subproject commit daa76d9e37758ab5b9b0f614b7e0aa6acfbe2e18

48
stardust_build.sh Executable file
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@ -0,0 +1,48 @@
export PATH="$HOME/prefix/tools/bin:$HOME/prefix/stage1/bin:$HOME/prefix-$(uname -m)/bin:$PATH"
wget https://ftpmirror.gnu.org/gnu/binutils/binutils-2.46.0.tar.gz https://ftpmirror.gnu.org/gnu/gcc/gcc-15.2.0/gcc-15.2.0.tar.gz
git clone https://github.com/Jonimoose/libfxcg --depth=1
tar xf gcc-15.2.0.tar.gz
tar xf binutils-2.46.0.tar.gz
cd binutils-2.46.0
mkdir stage{0,1}
cd stage0
../configure --prefix=$HOME/prefix-$(uname -m) --sysconfdir=/etc --enable-ld=default --enable-plugins --enable-shared --disable-werror --enable-64-bit-bfd
make -j$(nproc) tooldir=$HOME/prefix-$(uname -m)
make -j$(nproc) check
make -j install-strip tooldir=$HOME/prefix-$(uname -m)
cd ../../gcc-15.2.0
mkdir stage{0,1,2}
sed -ie '/m64=/s/lib64/lib/' gcc/config/i386/t-linux64
cd stage0
../configure --prefix=$HOME/prefix-$(uname -m) LD=ld --enable-languages-c,c++,ada --enable-default-pie --enable-default-ssp --enable-host-pie --disable-multilib --disable-fixincludes
make -j$(nproc)
sed -i ../gcc/testsuite/gcc.dg/plugin/plugin.exp -e '/cpython/d'
make -j install-strip
cd ../../binutils-2.46.0/stage1
../configure --prefix=$HOME/prefix/stage1 --with-sysroot=$HOME/prefix --target=sh3eb-elf --disable-nls --disable-gprofng --disable-werror
make -j$(nproc)
make -j install-strip
../configure --prefix=$HOME/prefix/tools --with-sysroot=$HOME/prefix --target=sh3eb-elf --disable-nls --disable-gprofng --disable-werror
make -j$(nproc)
make -j install-strip
cd ../../gcc-15.2.0/stage1
../configure --target=sh3eb-elf --prefix=$HOME/prefix/stage1 --with-sysroot=$HOME/prefix --with-newlib --without-headers --enable-default-pie --enable-default-ssp --disable-nls --enable-languages=c,c++,ada --disable-libstdcxx --disable-libada --disable-libssp
make -j$(nproc)
make -j install-strip
cd ../../libfxcg
make -j$(nproc) libc/libc.a
install -Dt $HOME/prefix/lib libc/libc.a libfxcg/libfxcg.a
mkdir -p $HOME/prefix/include
cp -r include/* $HOME/prefix/include/
cd ../gcc-15.2.0/stage2
../configure --target=sh3eb-elf --prefix=$HOME/prefix/tools --with-sysroot=$HOME/prefix --enable-default-pie --disable-nls --enable-languages=c,c++,ada --with-native-system-header-dir=/include --disable-gcov --disable-libada --disable-libstdcxx --disable-libssp
make -j$(nproc)
make -j install-strip
rm -rf $HOME/prefix/stage1

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@ -1,6 +0,0 @@
package body Program is
procedure Main is
begin
null;
end Main;
end Program;

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@ -1,4 +0,0 @@
package Program is
procedure Main;
pragma Export (C, Main, "main");
end Program;