it printfs with the efi interface

1 files changed, 17 insertions, 1 deletions

diff --git a/boot/efi/start.c b/boot/efi/start.c
index 8ef8cbe..f1f4ec7 100644
--- a/boot/efi/start.c
+++ b/boot/efi/start.c
@@ -4,6 +4,9 @@
 #include <efi/tables.h>
 
 #include "../kjarna.h"
+#include "../config.h"
+
+#include <libc/stdio.h>
 #include "kjarna_efi.h"
 
 struct efi_context const *efi_context;
@@ -21,12 +24,25 @@ EFI_STATUS _start(EFI_HANDLE handle, EFI_SYSTEM_TABLE *system_table)
 
 	system_table->ConOut->ClearScreen(system_table->ConOut);
 
+#ifdef DEBUG_WAIT
+	EFI_GUID lip_guid = EFI_LOADED_IMAGE_PROTOCOL_GUID;
+	EFI_LOADED_IMAGE_PROTOCOL *lip = efi_get_protocol(efi_context->handle, &lip_guid);
+
+	printf("DEBUG: EFI_LOADED_IMAGE_PROTOCOL { .ImageBase = %p }\n", lip->ImageBase);
+	__asm__ volatile ("movq %0, %%rax" :: "r"(lip->ImageBase) : "rax");
+	bool wait = true;
+
+	while(wait)
+	{
+		__asm__ ("hlt");
+	}
+#endif
+
 	if (main(0, nullptr) != 0)
 	{
 		efi_errno = EFI_ABORTED;
 	}
 
-
 	return _exit(efi_errno);
 }