From 0344d8645260cfe0f81912a775d775db39fc0624 Mon Sep 17 00:00:00 2001
From: Jonas Hvid <mail@johv.dk>
Date: Mon, 5 Oct 2020 02:33:04 +0200
Subject: [PATCH] Add startup.nsh to QEMU drive

This reduces the amount of typing that we have to do. Now the UEFI application
automatically runs on startup.
---
 Makefile | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index c812dcc..4b8184f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 .PHONY: qemu
-qemu: out/main OVMF_CODE.fd OVMF_VARS.fd
+qemu: out/main out/startup.nsh OVMF_CODE.fd OVMF_VARS.fd
 	# Based on https://wiki.osdev.org/UEFI#Emulation_with_QEMU_and_OVMF
 	qemu-system-x86_64 -cpu qemu64 \
 		-drive if=pflash,format=raw,unit=0,file=OVMF_CODE.fd,readonly=on \
@@ -18,6 +18,10 @@ out/main: main.asm impl.asm bootstrap.asm sys.f os/uefi.asm
 	mkdir -p out
 	OS_INCLUDE=os/uefi.asm fasm $< $@
 
+out/startup.nsh:
+	mkdir -p out
+	echo 'fs0:main' >out/startup.nsh
+
 main: main.asm impl.asm bootstrap.asm sys.f os/linux.asm
 	OS_INCLUDE=os/linux.asm fasm $< $@
 
-- 
2.39.2