Added functionality to bootloader so it can now read the kernel file to memory.

1 files changed, 29 insertions, 1 deletions

diff --git a/bootloader/src/main.rs b/bootloader/src/main.rs
index 87432af..04afe41 100644
--- a/bootloader/src/main.rs
+++ b/bootloader/src/main.rs
@@ -3,13 +3,41 @@
 
 use core::time::Duration;
 use log::info;
+use uefi::print;
 use uefi::prelude::*;
+use uefi::Result;
+use uefi::Status;
+use uefi::CString16;
+use uefi::fs::{FileSystem, FileSystemResult};
+use uefi::proto::media::fs::SimpleFileSystem;
+use uefi::boot::{self, ScopedProtocol};
+
+extern crate alloc;
+use alloc::vec::Vec;
 
 #[entry]
 fn main() -> Status {
     uefi::helpers::init().unwrap();
-    info!("Hello world!");
+    info!("Hello from bootloader!");
+    load_kernel().unwrap();
+    info!("Entry fuction regained control!");
     boot::stall(Duration::from_secs(10));
+    info!("exiting!");
     Status::SUCCESS
 }
 
+fn load_kernel() -> Result {
+    info!("Entered load_kernel function");
+    let kernel = read_file(r"\EFI\BOOT\kernel.elf").unwrap();
+    info!("Read kernel into memory!");
+    print!("{:x?}", kernel[..10].to_vec());
+    info!("I printed my dump");
+    return Ok(());
+}
+
+fn read_file(path: &str) -> FileSystemResult<Vec<u8>> {
+    let path: CString16 = CString16::try_from(path).unwrap();
+    let fs: ScopedProtocol<SimpleFileSystem> = boot::get_image_file_system(boot::image_handle()).unwrap();
+    let mut fs = FileSystem::new(fs);
+    fs.read(path.as_ref())
+}