Add modules

This reverts commit 7fe1a796b2.

.gitignore

@@ -5,3 +5,5 @@
 
 /config.mk
 /rootfs/boot/tailix.multiboot2
+/rootfs/boot/procman
+/rootfs/boot/memgr

Makefile

@@ -3,8 +3,10 @@ ROOTFS = rootfs
 
 GRUBCFG = $(ROOTFS)/boot/grub/grub.cfg
 KERNEL  = $(ROOTFS)/boot/tailix.multiboot2
+PROCMAN = $(ROOTFS)/boot/procman
+MEMGR   = $(ROOTFS)/boot/memgr
 
-.PHONY: kernel/tailix.multiboot2
+.PHONY: kernel/tailix.multiboot2 procman/procman memgr/memgr
 
 all: run0
 
@@ -15,14 +17,28 @@ run1: $(IMAGE)
 	qemu-system-i386 -cdrom $< -serial stdio
 
 clean:
-	rm -f $(IMAGE) $(KERNEL)
+	rm -f $(IMAGE) $(KERNEL) $(PROCMAN) $(MEMGR)
 	make -C kernel clean
+	make -C procman clean
+	make -C memgr clean
 
-$(IMAGE): $(GRUBCFG) $(KERNEL)
+$(IMAGE): $(GRUBCFG) $(KERNEL) $(PROCMAN) $(MEMGR)
 	grub-mkrescue $(ROOTFS) -o $@
 
 $(KERNEL): kernel/tailix.multiboot2
 	cp $< $@
 
+$(PROCMAN): procman/procman
+	cp $< $@
+
+$(MEMGR): memgr/memgr
+	cp $< $@
+
 kernel/tailix.multiboot2:
 	make -C kernel tailix.multiboot2
+
+procman/procman:
+	make -C procman procman
+
+memgr/memgr:
+	make -C memgr memgr

memgr/.gitignore

@@ -0,0 +1 @@
+/memgr

memgr/Makefile

@@ -0,0 +1,20 @@
+CCPREFIX = i386-elftailix-
+
+AS = $(CCPREFIX)as
+CC = $(CCPREFIX)gcc
+LD = $(CCPREFIX)ld
+
+MEMGR = memgr
+
+CFLAGS = -std=gnu99 -ffreestanding -nostdinc -fno-builtin -fno-stack-protector -Wall -Wextra
+
+all: $(MEMGR)
+
+clean:
+	rm -f $(MEMGR) start.o
+
+$(MEMGR): start.o
+	$(LD) -o $@ -T linker.ld $^
+
+start.o: start.c
+	$(CC) -c $< -o $@ $(CFLAGS)

memgr/linker.ld

@@ -0,0 +1,29 @@
+OUTPUT_ARCH("i386")
+OUTPUT_FORMAT("elf32-i386")
+ENTRY(_start)
+
+SECTIONS
+{
+    . = 0x0;
+
+    .text BLOCK(4K) : ALIGN(4K)
+    {
+        *(.text)
+    }
+
+    .rodata BLOCK(4K) : ALIGN(4K)
+    {
+        *(.rodata)
+    }
+
+    .data BLOCK(4K) : ALIGN(4K)
+    {
+        *(.data)
+    }
+
+    .bss BLOCK(4K) : ALIGN(4K)
+    {
+        *(COMMON)
+        *(.bss)
+    }
+}

memgr/start.c

@@ -0,0 +1,8 @@
+void _start()
+{
+    asm(
+        "mov $0, %eax \n\t"
+        "mov $0, %ebx \n\t"
+        "int $0x80    \n\t"
+    );
+}

procman/.gitignore

@@ -0,0 +1 @@
+/procman

procman/Makefile

@@ -0,0 +1,20 @@
+CCPREFIX = i386-elftailix-
+
+AS = $(CCPREFIX)as
+CC = $(CCPREFIX)gcc
+LD = $(CCPREFIX)ld
+
+PROCMAN = procman
+
+CFLAGS = -std=gnu99 -ffreestanding -nostdinc -fno-builtin -fno-stack-protector -Wall -Wextra
+
+all: $(PROCMAN)
+
+clean:
+	rm -f $(PROCMAN) start.o
+
+$(PROCMAN): start.o
+	$(LD) -o $@ -T linker.ld $^
+
+start.o: start.c
+	$(CC) -c $< -o $@ $(CFLAGS)

procman/linker.ld

@@ -0,0 +1,29 @@
+OUTPUT_ARCH("i386")
+OUTPUT_FORMAT("elf32-i386")
+ENTRY(_start)
+
+SECTIONS
+{
+    . = 0x0;
+
+    .text BLOCK(4K) : ALIGN(4K)
+    {
+        *(.text)
+    }
+
+    .rodata BLOCK(4K) : ALIGN(4K)
+    {
+        *(.rodata)
+    }
+
+    .data BLOCK(4K) : ALIGN(4K)
+    {
+        *(.data)
+    }
+
+    .bss BLOCK(4K) : ALIGN(4K)
+    {
+        *(COMMON)
+        *(.bss)
+    }
+}

procman/start.c

@@ -0,0 +1,32 @@
+void _start()
+{
+    asm(
+        "mov $0,   %eax \n\t"
+        "mov $0,   %ebx \n\t"
+        "int $0x80      \n\t"
+
+        "mov $0,   %eax \n\t"
+        "mov $1,   %ebx \n\t"
+        "int $0x80      \n\t"
+
+        "mov $1,   %eax \n\t"
+        "mov $0,   %ebx \n\t"
+        "int $0x80      \n\t"
+
+        "mov $2,   %eax \n\t"
+        "mov $0,   %ebx \n\t"
+        "int $0x80      \n\t"
+
+        "mov $256, %eax \n\t"
+        "mov $0,   %ebx \n\t"
+        "int $0x80      \n\t"
+
+        "mov $257, %eax \n\t"
+        "mov $0,   %ebx \n\t"
+        "int $0x80      \n\t"
+
+        "mov $258, %eax \n\t"
+        "mov $0,   %ebx \n\t"
+        "int $0x80      \n\t"
+    );
+}

rootfs/boot/grub/grub.cfg

@@ -2,4 +2,6 @@ set timeout=0
 
 menuentry "Tailix" {
     multiboot2 /boot/tailix.multiboot2 hello kernel
+    module2    /boot/procman hello module
+    module2    /boot/memgr
 }