Use regular Rust static-PIE for Rust storage example

Author: fwsGonzo

guest/rust_storage/build.sh

@@ -3,7 +3,7 @@ set -e
 pushd storage_program
 ./build.sh
 popd
-storage_binary=./storage_program/target/x86_64-unknown-linux-musl/release/demo
+storage_binary=./storage_program/target/release/demo
 objcopy -w --extract-symbol --strip-symbol=!remote* --strip-symbol=* $storage_binary storage.syms
 gcc-12 -static -O2 symbol_offset.c -o symbol_offset
 ./symbol_offset storage.syms 0x44000000

guest/rust_storage/storage_program/build.sh

@@ -1,3 +1,4 @@
 #!/usr/bin/env bash
 set -e
-RUSTFLAGS="-Zexport-executable-symbols" cargo build --target x86_64-unknown-linux-musl --release
+RUSTFLAGS="-Ctarget-feature=+crt-static -Zexport-executable-symbols" cargo build --release
+#RUSTFLAGS="-Zexport-executable-symbols" cargo build --target x86_64-unknown-linux-musl --release

guest/rust_storage/storage_program/src/main.rs

@@ -2,6 +2,7 @@ use std::process::ExitCode;
 
 #[no_mangle]
 extern "C" fn remote_function(arg: fn(i32) -> i32, value: i32) -> i32 {
+	//println!("In remote_function with value: {}", value);
 	return arg(value);
 }