set.sh

#Building glibc to wasm
cd /home
apt-get update
apt update
apt install -y build-essential
apt install -y git
apt install -y wget
apt install -y gcc-i686-linux-gnu g++-i686-linux-gnu
apt install -y bison
apt install -y gawk
apt install -y vim
apt install -y libxml2
apt install -y python3

#Install clang-16
wget https://github.com/llvm/llvm-project/releases/download/llvmorg-16.0.4/clang+llvm-16.0.4-x86_64-linux-gnu-ubuntu-22.04.tar.xz
tar -xf clang+llvm-16.0.4-x86_64-linux-gnu-ubuntu-22.04.tar.xz
cd /home/lind-wasm/glibc
git switch main
cd /home
mv /home/lind-wasm/glibc/wasi /home/clang+llvm-16.0.4-x86_64-linux-gnu-ubuntu-22.04/lib/clang/16/lib

#Configure(config.sh)
cd /home/lind-wasm/glibc
echo '#!/bin/bash
set -e
BUILDDIR=build
mkdir -p $BUILDDIR
cd $BUILDDIR
../configure --disable-werror --disable-hidden-plt --with-headers=/usr/i686-linux-gnu/include --prefix=/home/lind-wasm/glibc/target --host=i686-linux-gnu --build=i686-linux-gnu\
    CFLAGS=" -O2 -g" \
    CC="/home/clang+llvm-16.0.4-x86_64-linux-gnu-ubuntu-22.04/bin/clang-16 --target=wasm32-unkown-wasi -v -Wno-int-conversion"
' > config.sh
unset LD_LIBRARY_PATH
chmod +x config.sh
./config.sh

#Compiling to object file
cd build
make --keep-going -j4

#Installing
make install --keep-going

#Generating wasm sysroot
cd ..
rm -r gen_sysroot.sh
echo'
#!/bin/bash

# Define the source directory for object files (change ./build to your desired path)
src_dir="./build"

# Define paths for copying additional resources
include_source_dir="/home/lind-wasm/glibc/target/include"
crt1_source_path="/home/lind-wasm/glibc/lind_syscall/crt1.o"
lind_syscall_path="/home/lind-wasm/glibc/lind_syscall/lind_syscall.o" # Path to the lind_syscall.o file

# Define the output archive and sysroot directory
output_archive="sysroot/lib/wasm32-wasi/libc.a"
sysroot_dir="sysroot"

# First, remove the existing sysroot directory to start cleanly
rm -rf "$sysroot_dir"

# Find all .o files recursively in the source directory, ignoring stamp.o
object_files=$(find "$src_dir" -type f -name "*.o" ! \( -name "stamp.o" -o -name "argp-pvh.o" -o -name "repertoire.o" \))

# Add the lind_syscall.o file to the list of object files
object_files="$object_files $lind_syscall_path"

# Check if object files were found
if [ -z "$object_files" ]; then
  echo "No suitable .o files found in '$src_dir'."
  exit 1
fi

# Create the sysroot directory structure
mkdir -p "$sysroot_dir/include/wasm32-wasi" "$sysroot_dir/lib/wasm32-wasi"

# Pack all found .o files into a single .a archive
/home/clang+llvm-16.0.4-x86_64-linux-gnu-ubuntu-22.04/bin/llvm-ar rcs "$output_archive" $object_files

# Check if llvm-ar succeeded
if [ $? -eq 0 ]; then
  echo "Successfully created $output_archive with the following .o files:"
  echo "$object_files"
else
  echo "Failed to create the archive."
  exit 1
fi

# Copy all files from the external include directory to the new sysroot include directory
cp -r "$include_source_dir"/* "$sysroot_dir/include/wasm32-wasi/"

# Copy the crt1.o file into the new sysroot lib directory
cp "$crt1_source_path" "$sysroot_dir/lib/wasm32-wasi/"
' > gen_sysroot.sh
chmod +x gen_sysroot.sh
./gen_sysroot.sh

#Building safeposix-rust
cd /home
apt install -y curl
apt install -y gcc
git clone --recurse-submodules https://github.com/yzhang71/safeposix-rust.git
cd safeposix-rust
git switch 3i-dev
cargo build

#Building wasmtime
cd /home/lind-wasm/wasmtime
git submodule update --init
git switch add-lind
cd /home/lind-wasm/wasmtime/crates/rustposix/src
rm -r build.rs
cat << 'EOF' > build.rs
fn main() {
    println!("cargo:rustc-link-search=native=/home/lind-wasm/wasmtime/crates/rustposix");
    println!("cargo:rustc-link-lib=dylib=rustposix");
}
EOF
chmod +x build.rs
cd /home/lind-wasm/wasmtime
export LD_LIBRARY_PATH=/home/lind-wasm/wasmtime/crates/rustposix:$LD_LIBRARY_PATH
cp /home/safeposix-rust/target/debug/librustposix.so /home/lind-wasm/wasmtime/crates/rustposix
cargo build

#Modify stubs.h
cd /home/lind-wasm/glibc/target/include/gnu
rm -r stubs.h
echo '/* This file is automatically generated.
   This file selects the right generated file of `__stub_FUNCTION` macros based on the architecture being compiled for.  */

//#if !defined __x86_64__
//# include <gnu/stubs-32.h>
//#endif
#if defined __x86_64__ && defined __LP64__
# include <gnu/stubs-64.h>
#endif
#if defined __x86_64__ && defined __ILP32__
# include <gnu/stubs-x32.h>
#endif
' > stubs.h
chmod +x stubs.h
cd /home/lind-wasm/glibc
./gen_sysroot.sh
cd /home