commit f99fc6681a9b754373ef3ee696d77fb4866b0707
Author: Stepan Usatiuk <stepan@usatiuk.com>
Date:   Wed Sep 6 18:44:38 2023 +0200

    toolchain

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 000000000..5801219ee
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/toolchain
diff --git a/env.sh b/env.sh
new file mode 100755
index 000000000..2850bce44
--- /dev/null
+++ b/env.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+
+if [ -z "$OS2_ROOT" ]; then
+    echo OS2_ROOT is blank setting default!
+    export OS2_ROOT=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null && pwd)
+fi
diff --git a/toolchain_scripts/binutils-i686-elf.sh b/toolchain_scripts/binutils-i686-elf.sh
new file mode 100755
index 000000000..ca5e4cf9c
--- /dev/null
+++ b/toolchain_scripts/binutils-i686-elf.sh
@@ -0,0 +1,35 @@
+#!/bin/bash
+set -euxo pipefail
+
+if [ -z "$OS2_ROOT" ]; then
+    echo "$OS2_ROOT" is blank
+fi
+
+mkdir -p $OS2_ROOT/toolchain || exit 1
+
+pushd $OS2_ROOT/toolchain
+
+mkdir -p binutils-i686-elf
+
+pushd binutils-i686-elf
+
+if [ ! -d "binutils-2.41" ]; then
+    wget https://ftp.gnu.org/gnu/binutils/binutils-2.41.tar.xz
+    tar xvf binutils-2.41.tar.xz
+    rm binutils-2.41.tar.xz
+fi
+
+mkdir -p build
+
+pushd build
+
+export PREFIX="$OS2_ROOT/toolchain/gcc-i686-elf-prefix/"
+export TARGET=i686-elf
+export PATH="$PREFIX/bin:$PATH"
+
+../binutils-2.41/configure --target=$TARGET --prefix="$PREFIX" --with-sysroot --disable-nls --disable-werror
+
+make -j$(nproc)
+make install
+
+touch -m ../done
diff --git a/toolchain_scripts/binutils-x86_64-elf.sh b/toolchain_scripts/binutils-x86_64-elf.sh
new file mode 100755
index 000000000..168ea9ff6
--- /dev/null
+++ b/toolchain_scripts/binutils-x86_64-elf.sh
@@ -0,0 +1,35 @@
+#!/bin/bash
+set -euxo pipefail
+
+if [ -z "$OS2_ROOT" ]; then
+    echo "$OS2_ROOT" is blank
+fi
+
+mkdir -p $OS2_ROOT/toolchain || exit 1
+
+pushd $OS2_ROOT/toolchain
+
+mkdir -p binutils-x86_64-elf
+
+pushd binutils-x86_64-elf
+
+if [ ! -d "binutils-2.41" ]; then
+    wget https://ftp.gnu.org/gnu/binutils/binutils-2.41.tar.xz
+    tar xvf binutils-2.41.tar.xz
+    rm binutils-2.41.tar.xz
+fi
+
+mkdir -p build
+
+pushd build
+
+export PREFIX="$OS2_ROOT/toolchain/gcc-x86_64-elf-prefix/"
+export TARGET=x86_64-elf
+export PATH="$PREFIX/bin:$PATH"
+
+../binutils-2.41/configure --target=$TARGET --prefix="$PREFIX" --with-sysroot --disable-nls --disable-werror
+
+make -j$(nproc)
+make install
+
+touch -m ../done
diff --git a/toolchain_scripts/build-all.sh b/toolchain_scripts/build-all.sh
new file mode 100755
index 000000000..77c6627ee
--- /dev/null
+++ b/toolchain_scripts/build-all.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+set -euxo pipefail
+
+if [ -z "$OS2_ROOT" ]; then
+    echo "$OS2_ROOT" is blank
+fi
+
+SCRIPT_DIR=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null && pwd)
+
+"$SCRIPT_DIR"/binutils-i686-elf.sh
+"$SCRIPT_DIR"/gcc-i686-elf.sh
+
+"$SCRIPT_DIR"/binutils-x86_64-elf.sh
+"$SCRIPT_DIR"/gcc-x86_64-elf.sh
+"$SCRIPT_DIR"/libstdc++-x86_64-elf.sh
+
+"$SCRIPT_DIR"/grub.sh
+"$SCRIPT_DIR"/limine.sh
diff --git a/toolchain_scripts/gcc-i686-elf.sh b/toolchain_scripts/gcc-i686-elf.sh
new file mode 100755
index 000000000..61800f7d2
--- /dev/null
+++ b/toolchain_scripts/gcc-i686-elf.sh
@@ -0,0 +1,48 @@
+#!/bin/bash
+set -euxo pipefail
+
+if [ -z "$OS2_ROOT" ]; then
+    echo "$OS2_ROOT" is blank
+fi
+
+mkdir -p $OS2_ROOT/toolchain || exit 1
+
+pushd $OS2_ROOT/toolchain
+
+mkdir -p gcc-i686-elf
+
+pushd gcc-i686-elf
+
+if [ ! -d gcc-13.2.0 ]; then
+    wget https://ftp.gnu.org/gnu/gcc/gcc-13.2.0/gcc-13.2.0.tar.xz
+    tar xvf gcc-13.2.0.tar.xz
+    rm gcc-13.2.0.tar.xz
+fi
+
+mkdir -p build
+pushd build
+
+export PREFIX="$OS2_ROOT/toolchain/gcc-i686-elf-prefix/"
+export TARGET=i686-elf
+export PATH="$PREFIX/bin:$PATH"
+
+if [ ! -f "$OS2_ROOT/toolchain/gcc-i686-elf-prefix/bin/i686-elf-as" ]; then
+    echo "binutils not found"
+    exit 1
+fi
+
+HOMEBREW_LIBS="--with-gmp=/opt/homebrew --with-mpc=/opt/homebrew --with-mpfr=/opt/homebrew"
+
+ADDONS=""
+
+if [ ! -z "$USE_BREW_LIBS" ]; then
+    ADDONS="$HOMEBREW_LIBS $ADDONS"
+fi
+
+../gcc-13.2.0/configure --target=$TARGET --prefix="$PREFIX" --disable-nls --enable-languages=c,c++ --with-newlib --without-headers --enable-version-specific-runtime-libs $ADDONS
+make -j$(nproc) all-gcc
+make -j$(nproc) all-target-libgcc
+make install-gcc
+make install-target-libgcc
+
+touch -m ../done
diff --git a/toolchain_scripts/gcc-libstdcpp.patch b/toolchain_scripts/gcc-libstdcpp.patch
new file mode 100644
index 000000000..a950348bd
--- /dev/null
+++ b/toolchain_scripts/gcc-libstdcpp.patch
@@ -0,0 +1,46 @@
+--- gcc-13.2.0/libstdc++-v3/configure	2023-08-21 20:42:16
++++ gcc-13.2.0/libstdc++-v3/configure	2023-08-21 20:42:20
+@@ -71180,21 +71180,7 @@
+ done
+
+
+-  # Check for the fcntl function.
+-  if test -n "${with_target_subdir}"; then
+-     case "${host}" in
+-     *-*-mingw*) have_fcntl=no ;;
+-     *) have_fcntl=yes ;;
+-     esac
+-  else
+-    ac_fn_c_check_func "$LINENO" "fcntl" "ac_cv_func_fcntl"
+-if test "x$ac_cv_func_fcntl" = xyes; then :
+-  have_fcntl=yes
+-else
+   have_fcntl=no
+-fi
+-
+-  fi
+   if test "$have_fcntl" = "yes"; then
+     BACKTRACE_CPPFLAGS="$BACKTRACE_CPPFLAGS -DHAVE_FCNTL=1"
+   fi
+@@ -71211,21 +71197,7 @@
+ _ACEOF
+
+
+-  # Check for getexecname function.
+-  if test -n "${with_target_subdir}"; then
+-     case "${host}" in
+-     *-*-solaris2*) have_getexecname=yes ;;
+-     *) have_getexecname=no ;;
+-     esac
+-  else
+-    ac_fn_c_check_func "$LINENO" "getexecname" "ac_cv_func_getexecname"
+-if test "x$ac_cv_func_getexecname" = xyes; then :
+-  have_getexecname=yes
+-else
+   have_getexecname=no
+-fi
+-
+-  fi
+   if test "$have_getexecname" = "yes"; then
+     BACKTRACE_CPPFLAGS="$BACKTRACE_CPPFLAGS -DHAVE_GETEXECNAME=1"
+   fi
diff --git a/toolchain_scripts/gcc-x86_64-elf.sh b/toolchain_scripts/gcc-x86_64-elf.sh
new file mode 100755
index 000000000..774ddda02
--- /dev/null
+++ b/toolchain_scripts/gcc-x86_64-elf.sh
@@ -0,0 +1,57 @@
+#!/bin/bash
+set -euxo pipefail
+
+if [ -z "$OS2_ROOT" ]; then
+    echo "$OS2_ROOT" is blank
+fi
+
+mkdir -p $OS2_ROOT/toolchain || exit 1
+
+pushd $OS2_ROOT/toolchain
+
+mkdir -p gcc-x86_64-elf
+
+pushd gcc-x86_64-elf
+
+if [ ! -d gcc-13.2.0 ]; then
+    wget https://ftp.gnu.org/gnu/gcc/gcc-13.2.0/gcc-13.2.0.tar.xz
+    tar xvf gcc-13.2.0.tar.xz
+    rm gcc-13.2.0.tar.xz
+fi
+
+mkdir -p build
+pushd build
+
+export PREFIX="$OS2_ROOT/toolchain/gcc-x86_64-elf-prefix/"
+export TARGET=x86_64-elf
+export PATH="$PREFIX/bin:$PATH"
+
+if [ ! -f "$OS2_ROOT/toolchain/gcc-x86_64-elf-prefix/bin/x86_64-elf-as" ]; then
+    echo "binutils not found"
+    exit 1
+fi
+
+HOMEBREW_LIBS="--with-gmp=/opt/homebrew --with-mpc=/opt/homebrew --with-mpfr=/opt/homebrew"
+
+ADDONS=""
+
+if [ ! -z "$USE_BREW_LIBS" ]; then
+    ADDONS="$HOMEBREW_LIBS $ADDONS"
+fi
+
+cat <<EOF >../gcc-13.2.0/gcc/config/i386/t-x86_64-elf
+# Add libgcc multilib variant without red-zone requirement
+ 
+MULTILIB_OPTIONS += mno-red-zone
+MULTILIB_DIRNAMES += no-red-zone
+EOF
+
+sed -i .bak 's/x86_64-\*-elf\*)/x86_64-\*-elf\*)\n\ttmake_file="\${tmake_file} i386\/t-x86_64-elf"/g' "../gcc-13.2.0/gcc/config.gcc"
+
+../gcc-13.2.0/configure --target=$TARGET --prefix="$PREFIX" --disable-nls --enable-languages=c,c++ --with-newlib --without-headers --enable-version-specific-runtime-libs $ADDONS
+make -j$(nproc) all-gcc
+make -j$(nproc) all-target-libgcc
+make install-gcc
+make install-target-libgcc
+
+touch -m ../done
diff --git a/toolchain_scripts/grub.sh b/toolchain_scripts/grub.sh
new file mode 100755
index 000000000..8ea91f1a2
--- /dev/null
+++ b/toolchain_scripts/grub.sh
@@ -0,0 +1,46 @@
+#!/bin/bash
+set -euxo pipefail
+
+if [ -z "$OS2_ROOT" ]; then
+    echo "$OS2_ROOT" is blank
+fi
+
+mkdir -p $OS2_ROOT/toolchain || exit 1
+
+pushd $OS2_ROOT/toolchain
+
+mkdir -p grub
+
+pushd grub
+
+mkdir -p prefix
+
+if [ ! -d "grub-2.06" ]; then
+    wget https://ftp.gnu.org/gnu/grub/grub-2.06.tar.xz
+    tar xvf grub-2.06.tar.xz
+    rm grub-2.06.tar.xz
+fi
+
+mkdir -p build
+
+pushd build
+
+if [ ! -f "$OS2_ROOT/toolchain/gcc-i686-elf-prefix/bin/i686-elf-gcc" ]; then
+    echo "binutils not found"
+    exit 1
+fi
+
+export PATH="$OS2_ROOT/toolchain/gcc-i686-elf-prefix/bin":"$PATH"
+
+export PREFIX="$OS2_ROOT/toolchain/grub/prefix"
+export TARGET=i686-elf
+export PATH="$PREFIX/bin:$PATH"
+
+../grub-2.06/configure --disable-werror TARGET_CC=i686-elf-gcc TARGET_AS=i686-elf-as TARGET_OBJCOPY=i686-elf-objcopy \
+    TARGET_STRIP=i686-elf-strip TARGET_NM=i686-elf-nm TARGET_RANLIB=i686-elf-ranlib --target="$TARGET" \
+    --prefix="$PREFIX"
+
+make -j$(nproc)
+make install
+
+touch -m ../done
diff --git a/toolchain_scripts/libstdc++-x86_64-elf.sh b/toolchain_scripts/libstdc++-x86_64-elf.sh
new file mode 100755
index 000000000..1ea480950
--- /dev/null
+++ b/toolchain_scripts/libstdc++-x86_64-elf.sh
@@ -0,0 +1,53 @@
+#!/bin/bash
+set -euxo pipefail
+
+if [ -z "$OS2_ROOT" ]; then
+  echo "$OS2_ROOT" is blank
+fi
+
+mkdir -p $OS2_ROOT/toolchain || exit 1
+
+cd $OS2_ROOT/toolchain
+
+cd gcc-x86_64-elf || exit 1
+
+if [ ! -d gcc-13.2.0 ]; then
+  echo "GCC Sources not found!"
+  exit 1
+fi
+
+if [ ! -f "$OS2_ROOT/toolchain/gcc-x86_64-elf-prefix/bin/x86_64-elf-as" ]; then
+  echo "binutils not found"
+  exit 1
+fi
+
+if [ ! -f "$OS2_ROOT/toolchain/gcc-x86_64-elf-prefix/bin/x86_64-elf-gcc" ]; then
+  echo "gcc not found"
+  exit 1
+fi
+
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+patch -u -i "$SCRIPT_DIR/gcc-libstdcpp.patch"
+
+export PREFIX="$OS2_ROOT/toolchain/gcc-x86_64-elf-prefix/"
+export TARGET=x86_64-elf
+export PATH="$PREFIX/bin:$PATH"
+
+# Note that you might have to go into the configure script and remove tests for fcntl and maybe other errors
+mkdir -p libstdcppbuild
+cd libstdcppbuild
+../gcc-13.2.0/libstdc++-v3/configure \
+  --host=$TARGET \
+  --prefix="$PREFIX" \
+  --disable-nls \
+  --with-newlib \
+  --without-headers \
+  --disable-libstdcxx-threads \
+  --disable-hosted-libstdcxx \
+  --enable-version-specific-runtime-libs
+
+make -j$(nproc) CFLAGS_FOR_TARGET='-g -O2 -mcmodel=large -mno-red-zone'
+make install
+
+touch -m ../donelibstdcpp
diff --git a/toolchain_scripts/limine.sh b/toolchain_scripts/limine.sh
new file mode 100755
index 000000000..ada0946c3
--- /dev/null
+++ b/toolchain_scripts/limine.sh
@@ -0,0 +1,47 @@
+#!/bin/bash
+set -euxo pipefail
+
+if [ -z "$OS2_ROOT" ]; then
+    echo "$OS2_ROOT" is blank
+fi
+
+mkdir -p $OS2_ROOT/toolchain || exit 1
+
+pushd $OS2_ROOT/toolchain
+
+mkdir -p limine
+
+pushd limine
+
+mkdir -p prefix
+
+if [ ! -d "limine-5.20230830.0" ]; then
+    wget https://github.com/limine-bootloader/limine/releases/download/v5.20230830.0/limine-5.20230830.0.tar.xz
+    tar xvf limine-5.20230830.0.tar.xz
+    rm limine-5.20230830.0.tar.xz
+fi
+
+mkdir -p build
+
+pushd build
+
+if [ ! -f "$OS2_ROOT/toolchain/gcc-i686-elf-prefix/bin/i686-elf-gcc" ]; then
+    echo "binutils not found"
+    exit 1
+fi
+
+export PATH="$OS2_ROOT/toolchain/gcc-i686-elf-prefix/bin":"$PATH"
+export PATH="$OS2_ROOT/toolchain/gcc-x86_64-elf-prefix/bin":"$PATH"
+
+export PREFIX="$OS2_ROOT/toolchain/limine/prefix"
+export PATH="$PREFIX/bin:$PATH"
+
+# fix for old make
+grep -rl "define DEFAULT_VAR =" ../limine-5.20230830.0 | xargs sed -i "" -e 's/define DEFAULT_VAR =/define DEFAULT_VAR/g'
+
+../limine-5.20230830.0/configure --disable-werror --enable-bios-cd --enable-bios --enable-uefi-ia32 --enable-uefi-x86-64 --enable-uefi-cd \
+    --prefix="$PREFIX"
+
+make -j$(nproc) install
+
+touch -m ../done