build.ninja

cc32 = i686-elf-gcc
ld32 = i686-elf-ld
cc64 = x86_64-elf-gcc
ld64 = x86_64-elf-ld

cflags = -std=gnu99 -Wall -Wextra -Wpedantic
cflags = $cflags -O3 -I public 
cflags = $cflags -ffreestanding -fno-builtin
cflags = $cflags -fno-builtin -fno-stack-protector -fno-defer-pop 
cflags = $cflags -z max-page-size=0x1000
cflags = $cflags -mno-red-zone -mno-mmx -mno-sse -mno-sse2

rule cc
  command = $cc32 $cflags -m32 -c $in -o $out

rule asm
  command = $cc32 $cflags -m32 -march=i386 -c $in -o $out

rule link
  command = $ld32 -Ttext 0x8000 -melf_i386 $in -o $out

# rule cc64
#   command = $cc $cflags -m64 -c $in -o $out -ffreestanding 
# 
# rule kbuild
#   command = $cc $cflags -m64 -o $out -ffreestanding -z max-page-size=0x1000 -mno-red-zone -mno-mmx -mno-sse -mno-sse2 -std=gnu99 -Wall -Wextra $in
# 
# rule link64
#   command = $cc -T kernel_link.ld -o $out $in -ffreestanding -O2 -nostdlib -lgcc -z max-page-size=0x1000

rule grubby
  command = grub-mkrescue -o $out iso/

rule copy
  command = cp $in $out
    
#build build/elf64.o: cc elf64.c
build build/util32.o: cc util.c
build build/gdt.o: asm loader/gdt.s
build build/boot.o: asm loader/boot.S
build build/interrupt_entry.o: asm loader/interrupt_entry.S
build build/interrupts.o: cc loader/interrupts.c
build build/loader.o: cc loader/loader.c
build build/memory.o: cc loader/memory.c
build iso/boot/loader: link build/loader.o build/boot.o build/util32.o build/gdt.o build/interrupt.o build/memory.o build/interrupts.o

# build build/util.o: cc64 util.c
# build build/ap.o: asm ap.S
# build build/kernel.o: cc64 kernel.c
# build iso/boot/kernel: link64 build/kernel.o build/util.o

#build boot.iso: grubby iso/ iso/boot/kernel iso/boot/loader
build boot.iso: grubby iso/ iso/boot/loader
build image: copy boot.iso