fixes

test2/Makefile

@@ -0,0 +1,16 @@
+RUSTC = rustc --target x86_64-pc-windows-msvc -Cpanic=abort -Clinker=lld-link -Clink-arg=/NODEFAULTLIB -Clink-arg=/debug:none -Cdebuginfo=0
+
+build: empty_exe.exe one_dll.exe
+
+empty_exe.exe: empty_exe.rs
+	$(RUSTC) empty_exe.rs
+
+one_dll.exe: one_dll.rs small_dll.dll
+	$(RUSTC) one_dll.rs
+
+small_dll.dll: small_dll.rs
+	$(RUSTC) small_dll.rs
+
+.PHONY: clean
+clean:
+	rm *.exe *.pdb *.dll

test2/empty_exe.rs

@@ -0,0 +1,13 @@
+#![no_std]
+#![no_main]
+#![windows_subsystem = "console"]
+
+#[panic_handler]
+fn handle_panic(_: &core::panic::PanicInfo<'_>) -> ! {
+    loop {}
+}
+
+#[no_mangle]
+pub extern "stdcall" fn mainCRTStartup() -> u32 {
+    42
+}

test2/one_dll.rs

@@ -0,0 +1,18 @@
+#![no_std]
+#![no_main]
+#![windows_subsystem = "console"]
+
+#[link(name = "small_dll", kind = "raw-dylib")]
+unsafe extern "C" {
+    safe fn my_export() -> u32;
+}
+
+#[panic_handler]
+fn handle_panic(_: &core::panic::PanicInfo<'_>) -> ! {
+    loop {}
+}
+
+#[no_mangle]
+pub extern "stdcall" fn mainCRTStartup() -> u32 {
+    my_export()
+}

test2/small_dll.rs

@@ -0,0 +1,18 @@
+#![no_std]
+#![crate_type = "cdylib"]
+#![windows_subsystem = "console"]
+
+#[panic_handler]
+fn handle_panic(_: &core::panic::PanicInfo<'_>) -> ! {
+    loop {}
+}
+
+#[no_mangle]
+pub extern "C" fn my_export() -> u32 {
+    42
+}
+
+#[no_mangle]
+pub extern "stdcall" fn _DllMainCRTStartup() -> u32 {
+    0
+}