Back to a basic UEFI stub

src/boot/error.h

@@ -0,0 +1,53 @@
+#pragma once
+
+#include <stddef.h>
+#include <uefi/types.h>
+
+namespace boot {
+
+class console;
+
+namespace error {
+
+/// Halt or exit the program with the given error status/message
+[[ noreturn ]] void raise(uefi::status status, const wchar_t *message);
+
+/// Interface for error-handling functors
+class handler
+{
+public:
+	/// Constructor must be called by implementing classes.
+	handler();
+	virtual ~handler();
+
+	/// Interface for implementations of error handling.
+	virtual void handle(uefi::status, const wchar_t*) = 0;
+
+private:
+	friend void raise(uefi::status, const wchar_t *);
+
+	handler *m_next;
+	static handler *s_current;
+};
+
+class uefi_handler :
+	public handler
+{
+public:
+	uefi_handler(console &con);
+	[[ noreturn ]] void handle(uefi::status, const wchar_t*) override;
+
+private:
+	console &m_con;
+};
+
+class cpu_assert_handler :
+	public handler
+{
+public:
+	cpu_assert_handler();
+	[[ noreturn ]] void handle(uefi::status, const wchar_t*) override;
+};
+
+} // namespace error
+} // namespace boot