build: Add initial build files

Signed-off-by: Ian Moffett <ian@mirocom.org>

host/build.sh

@@ -0,0 +1,12 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2026, Mirocom Laboratories
+# Provided under the BSD-3 clause
+#
+
+build() {
+    cd src/; make -j1
+}
+
+build

src/Makefile

@@ -0,0 +1,11 @@
+#
+# Copyright (c) 2026, Mirocom Laboratories
+# Provided under the BSD-3 clause
+#
+
+.PHONY: all
+all: m1x
+
+.PHONY: m1x
+m1x:
+	cd m1x/; make

src/m1x/Makefile

@@ -0,0 +1,13 @@
+#
+# Copyright (c) 2026, Mirocom Laboratories
+# Provided under the BSD-3 clause
+#
+
+include ../mk/default.mk
+
+.PHONY: all
+all: arch
+
+.PHONY: arch
+arch:
+	cd arch/$(ARCH_TARGET)/; make $(PASSDOWN_ARGS)

src/m1x/arch/x86_64/Makefile

@@ -0,0 +1,34 @@
+#
+# Copyright (c) 2026, Mirocom Laboratories
+# Provided under the BSD-3 clause
+#
+
+MISC_OFILES = $(shell find ../../ -name "*.o")
+
+ASMFILES = $(shell find . -name "*.S" | grep -v "boot")
+ASMOFILES = $(ASMFILES:.S=.S.o)
+CFILES = $(shell find . -name "*.c")
+OFILES = $(CFILES:.c=.o)
+DFILES = $(shell find . -name "*.d")
+
+KERN_BIN = ../../m1x.sys
+
+LD = ../../../$(SYS_LD)
+CC = ../../../$(SYS_CC)
+
+CFLAGS = 				\
+	$(SYS_CFLAGS)		\
+	-D_KERNEL			\
+	-I../../target/		\
+	-I../../include/	\
+
+.PHONY: all
+all: $(OFILES) $(ASMOFILES)
+	$(LD) $(MISC_OFILES) -Tconf/link.ld -o $(KERN_BIN) $(LDFLAGS)
+
+%.S.o: %.S
+	$(CC) -c $< $(CFLAGS) -o $@
+
+-include $(DFILES)
+%.o: %.c
+	$(CC) -c $< $(CFLAGS) -I../../inc/ -MMD -o $@

src/m1x/arch/x86_64/conf/link.ld

@@ -0,0 +1,43 @@
+OUTPUT_FORMAT(elf64-x86-64)
+OUTPUT_ARCH(i386:x86-64)
+ENTRY(_start)
+
+PHDRS
+{
+    text          PT_LOAD    FLAGS((1 << 0) | (1 << 2)) ;
+    rodata        PT_LOAD    FLAGS((1 << 2)) ;
+    data          PT_LOAD    FLAGS((1 << 1) | (1 << 2)) ;
+}
+
+SECTIONS
+{
+    . = 0xFFFFFFFF80000000;
+
+    .text : {
+        *(.text .text.*)
+    } :text
+
+    . += CONSTANT(MAXPAGESIZE);
+
+    .rodata : {
+        *(.rodata .rodata.*)
+    } :rodata
+
+    . += CONSTANT(MAXPAGESIZE);
+
+    .data : {
+        *(.data)
+    } :data
+
+    .bss : {
+        *(COMMON)
+        *(.bss .bss.*)
+    } :data
+
+    . += CONSTANT(MAXPAGESIZE);
+
+    /DISCARD/ : {
+        *(.eh_frame .eh_frame.*)
+        *(.note .note.*)
+    }
+}

src/m1x/arch/x86_64/cpu/locore.S

@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2026, Mirocom Laboratories
+ * Provided under the BSD-3 clause
+ */
+
+    .text
+    .globl _start
+_start:
+    cli
+    cld
+
+    xor %rbp, %rbp
+
+1:  hlt
+    jmp 1b