NOT TESTED YET

build-gcc.sh

@@ -1,7 +1,14 @@
+#!/usr/bin/env bash
+
+set -e
+
 # Step 1. Download GCC and binutils source code
-ADACASIO_BINUTILS_URL="https://ftp.gnu.org/gnu/binutils/binutils-2.46.0.tar.gz"
-ADACASIO_GCC_URL="https://ftp.gnu.org/gnu/gcc/gcc-15.2.0/gcc-15.2.0.tar.gz"
+ADACASIO_BINUTILS_VERSION="2.46.0"
+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"
 
 # prepare configure and build enviornment
 wget -O binutils.tar.gz $ADACASIO_BINUTILS_URL
@@ -9,29 +16,43 @@ wget -O gcc.tar.gz $ADACASIO_GCC_URL
 tar -xf binutils.tar.gz
 tar -xf gcc.tar.gz
 
-# Step 2. configure GCC and binutils
+# 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 $ADACASIO_PREFIX
 cd build-binutils
 ../binutils-*/configure \
-  --prefix="$PREFIX" \
+  --prefix="$ADACASIO_PREFIX" \
   --target="sh3eb-elf" \
   --with-multilib-list="m3,m4-nofpu" \
-  --program-prefix="sh3eb-elf-" \
-  --host="native" \
-  --disable-nls \
-  --disable-multilib \
-  --disable-shared \
-  --with-sysroot
+  --program-prefix="$ADACASIO_TARGET-" \
+  --enable-libssp \
+  --enable-lto
 
 make -j$(nproc)
+make install-strip
 
-cd ../build-gcc
-../gcc/configure \
-  --enable-languages="ada,c" \
+# Build GCC the same way as Lephenixnoir does but also add ada
+# https://git.planet-casio.com/Lephenixnoir/sh-elf-gcc
+
+cd ../build-gcc/
+../gcc-$VERSION/configure \
+  --prefix="$SYSROOT" \
+  --target="sh3eb-elf" \
+  --with-multilib-list="m3,m4-nofpu" \
+  --enable-languages="c,c++,ada" \
+  --disable-libada \
   --without-headers \
   --program-prefix="sh-elf-" \
+  --enable-libssp \
+  --enable-lto \
   --enable-clocale="generic" \
   --enable-libstdcxx-allocator \
   --disable-threads \
   --disable-libstdcxx-verbose \
-  --enable-cxx-flags="-fno-exceptions
+  --enable-cxx-flags="-fno-exceptions"
+
+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