From 3154c067ebd5e23b8be9693a1a790c70a9634344 Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Thu, 7 Mar 2024 22:46:25 -0500
Subject: build: Create init stub

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 Makefile.in            |   8 ++++++--
 usr.sbin/Makefile      |   6 ++++++
 usr.sbin/init/Makefile |   7 +++++++
 usr.sbin/init/init     | Bin 0 -> 944 bytes
 usr.sbin/init/main.c   |   6 ++++++
 5 files changed, 25 insertions(+), 2 deletions(-)
 create mode 100644 usr.sbin/Makefile
 create mode 100644 usr.sbin/init/Makefile
 create mode 100755 usr.sbin/init/init
 create mode 100644 usr.sbin/init/main.c

diff --git a/Makefile.in b/Makefile.in
index f61c4e9..daa0cf9 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -69,10 +69,14 @@ override KERNEL_ASMOBJECTS = $(KERNEL_ASMFILES:.S=.S.o)
 override KERNEL_HEADER_DEPS = $(KERNEL_CFILES:.c=.d)
 
 .PHONY: all
-all: base lib base/usr/lib/ld.so base/boot/hyra-kernel
+all: base init lib base/usr/lib/ld.so base/boot/hyra-kernel
 		rm -f sys/include/machine
 		rm -rf iso_root
 
+base/boot/init: usr.sbin/init/
+	cd usr.sbin/; make CC=$(CC) LD=$(LD)
+	cp usr.sbin/init/init base/boot/
+
 base:
 	mkdir -p base/usr/lib/
 
@@ -96,6 +100,7 @@ distclean:
 	rm -f $(KERNEL_ASMOBJECTS) $(KERNEL_OBJECTS) $(KERNEL_HEADER_DEPS)
 	rm -f sys/include/machine
 	rm -f base/usr/lib/ld.so
+	rm -f base/boot/init
 	cd lib/; make clean
 
 .PHONY: clean
@@ -115,7 +120,6 @@ base/usr/lib/ld.so: lib/mlibc/
 
 base/boot/hyra-kernel: $(KERNEL_OBJECTS) $(KERNEL_ASMOBJECTS)
 	rm -rf iso_root
-	mkdir -p base/boot/
 	$(PROMPT) " LD " $(shell pwd)/base/boot/hyra-kernel
 	$(LD) $(KERNEL_LDFLAGS) $(KERNEL_OBJECTS) $(KERNEL_ASMOBJECTS) -o base/boot/hyra-kernel
 	tools/ksyms sys/kern/ksyms.c base/boot/hyra-kernel
diff --git a/usr.sbin/Makefile b/usr.sbin/Makefile
new file mode 100644
index 0000000..7cf3d01
--- /dev/null
+++ b/usr.sbin/Makefile
@@ -0,0 +1,6 @@
+CC =
+LD =
+
+.PHONY: all
+all:
+	cd init/; make CC=$(CC) LD=$(LD)
diff --git a/usr.sbin/init/Makefile b/usr.sbin/init/Makefile
new file mode 100644
index 0000000..4b578f8
--- /dev/null
+++ b/usr.sbin/init/Makefile
@@ -0,0 +1,7 @@
+CC =
+LD =
+
+.PHONY: all
+all:
+	$(CC) -c main.c -o main.o;
+	$(LD) main.o -o init -e main
diff --git a/usr.sbin/init/init b/usr.sbin/init/init
new file mode 100755
index 0000000..8b83844
Binary files /dev/null and b/usr.sbin/init/init differ
diff --git a/usr.sbin/init/main.c b/usr.sbin/init/main.c
new file mode 100644
index 0000000..af62d76
--- /dev/null
+++ b/usr.sbin/init/main.c
@@ -0,0 +1,6 @@
+int
+main(void)
+{
+    /* Do nothing */
+    while (1);
+}
-- 
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