dev/block: use read_aligned in partition probing

kernel/libk/libk-mm/src/lib.rs

@@ -230,6 +230,10 @@ impl<T> PageBox<MaybeUninit<T>> {
 
         PageBox { value, page_count }
     }
+
+    pub fn as_bytes_mut(p: &mut Self) -> &mut PageSlice<MaybeUninit<u8>> {
+        unsafe { core::mem::transmute(p.as_bytes_mut()) }
+    }
 }
 
 impl<T> PageBox<[MaybeUninit<T>]> {

kernel/libk/src/vfs/block/partition.rs

@@ -90,14 +90,6 @@ impl<'a, D: NgBlockDevice + 'a> BlockDevice for Partition<'a, D> {
             || buf.len() % self.device.block_size != 0
         {
             // TODO fallback to unaligned read
-            log::info!(
-                "Unaligned read: block_size={}, off={:#x}, pos={:#x}, len={}",
-                self.device.block_size,
-                pos,
-                start,
-                buf.len()
-            );
-            loop {}
             todo!()
         }
 
@@ -154,11 +146,14 @@ impl<'a, D: NgBlockDevice + 'a> BlockDevice for Partition<'a, D> {
     }
 }
 
-async unsafe fn read_struct_lba<T>(dev: &'static dyn BlockDevice, lba: u64) -> Result<T, Error> {
+async unsafe fn read_struct_lba<T>(
+    dev: &'static dyn BlockDevice,
+    lba: u64,
+) -> Result<PageBox<T>, Error> {
     assert_eq!(size_of::<T>(), 512);
-    let mut data = MaybeUninit::<T>::uninit();
-    let buffer = core::slice::from_raw_parts_mut(data.as_mut_ptr() as *mut u8, 512);
-    dev.read_exact(lba * 512, buffer).await?;
+    let mut data = PageBox::new_uninit()?;
+    dev.read_aligned(lba * 512, PageBox::as_bytes_mut(&mut data))
+        .await?;
     Ok(data.assume_init())
 }
 

lib/runtime/build.rs

@@ -73,6 +73,7 @@ fn generate_abi<P: AsRef<Path>>(abi_path: P) {
 }
 
 fn main() {
+    println!("cargo:rustc-check-cfg=cfg(rust_analyzer)");
     build_libm();
     generate_abi("../abi/def");
 }

lib/runtime/src/net.rs

@@ -2,7 +2,7 @@
 
 pub use abi::net::{MacAddress, SocketInterfaceQuery, SocketOption, SocketType};
 
-#[cfg(feature = "alloc")]
+#[cfg(any(feature = "alloc", rust_analyzer))]
 pub mod dns {
     //! DNS resolver module for `std`
     use abi::net::dns::DnsSerialize;