Use uefi crate and its entry macro

Cargo.lock

@@ -8,6 +8,12 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
 
+[[package]]
+name = "bit_field"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dcb6dd1c2376d2e096796e234a70e17e94cc2d5d54ff8ce42b28cef1d0d359a4"
+
 [[package]]
 name = "bitflags"
 version = "1.2.1"
@@ -131,6 +137,35 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "proc-macro2"
+version = "1.0.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e0704ee1a7e00d7bb417d0770ea303c1bccbabf0ef1667dae92b5967f5f8a71"
+dependencies = [
+ "unicode-xid",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3d0b9745dc2debf507c8422de05d7226cc1f0644216dfdfead988f9b1ab32a7"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "syn"
+version = "1.0.64"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3fd9d1e9976102a03c542daa2eff1b43f9d72306342f3f8b3ed5fb8908195d6f"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
+]
+
 [[package]]
 name = "time"
 version = "0.1.44"
@@ -142,9 +177,50 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "ucs2"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bad643914094137d475641b6bab89462505316ec2ce70907ad20102d28a79ab8"
+dependencies = [
+ "bit_field",
+]
+
+[[package]]
+name = "uefi"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41f86f972322768901e872186fc8b7df009ca4ce3e945fc337614cdca0c526d4"
+dependencies = [
+ "bitflags",
+ "log",
+ "ucs2",
+ "uefi-macros",
+]
+
+[[package]]
+name = "uefi-macros"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3dcca10ca861f34a320d178f3fdb29ffbf05087fc2c70d2a99860e3329bee1a8"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "uefi_app"
 version = "0.1.0"
+dependencies = [
+ "uefi",
+]
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
 
 [[package]]
 name = "uuid"

Cargo.toml

@@ -10,3 +10,4 @@ edition = "2018"
 members = ["disk_image"]
 
 [dependencies]
+uefi = "0.8.0"

src/main.rs

@@ -1,13 +1,15 @@
 #![feature(abi_efiapi)]
-
 #![no_std]
 #![no_main]
 
-use core::ffi::c_void;
 use core::panic::PanicInfo;
+use uefi::prelude::entry;
 
-#[no_mangle]
+#[entry]
-pub extern "efiapi" fn efi_main(image: *mut c_void, system_table: *const c_void) -> usize {
+fn efi_main(
+    image: uefi::Handle,
+    system_table: uefi::table::SystemTable<uefi::table::Boot>,
+) -> uefi::Status {
     loop {}
 }