83 lines
2.5 KiB
Makefile
83 lines
2.5 KiB
Makefile
#TODO: add a rule to setup the cross compiler
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# or maybe add it to a bash script instead? im not sure
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CC = i686-elf-gcc
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DEBUG_FLAGS = -D__TESTING__ -g
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CFLAGS = -m32 -ffreestanding -Wall -Wextra -Werror -Wpedantic --sysroot=$(PWD)/sysroot -isystem=/usr/include -Iinclude -MD $(DEBUG_FLAGS)
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AS = nasm
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ASFLAGS = -f elf
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LD = i686-elf-ld
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LDFLAGS = -T $(shell find . -name "link.ld") -melf_i386 --sysroot=$(PWD)/sysroot -nostdlib -lk -lgcc
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AR = i686-elf-ar
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TERM_EXEC = kitty --hold sh -c
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c_kern_objects := $(patsubst %.c,%.o,$(shell find kernel/ -name "*.c"))
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asm_kern_objects := $(patsubst %.s,%.o,$(shell find kernel/ -name "*.s"))
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free_objs = $(patsubst %.c,%.o, $(shell find libc/ -path "libc/arch" -prune -o -type f | grep "\.c"))
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hosted_objs = $(patsubst, %.c,%.o,$(shell find libc/arch/ -name "*.c"))
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libc_objs = $(free_objs) $(hosted_objs)
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libk_objs = $(free_objs)
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# binaries = libk.a libc.a # Not ready for libc yet
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binaries = libk.a
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.PHONY: clean all run install-headers install-libs env
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all: kernel.elf
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env: install-headers install-libs # TODO: change this to a file specific target, so it doesnt recompile everytime, and so we can move as a prereq on kernel.elf
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util/./gen-clangd.sh
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kernel.elf: install-headers install-libs env $(c_kern_objects) $(asm_kern_objects)
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$(CC) $(CFLAGS) -T $(shell find . -name "link.ld") -o $@ $(c_kern_objects) $(asm_kern_objects) -nostdlib -lk -lgcc
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os.iso: kernel.elf
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mkdir -p iso/boot/grub
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cp $< iso/boot/kernel.elf
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cp util/grub.cfg iso/boot/grub/grub.cfg
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grub-mkrescue -o $@ iso
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run: os.iso
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$(TERM_EXEC) "gdb kernel.elf -x util/gdbcmds" &
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qemu-system-i386 -s -cdrom os.iso
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bochs: os.iso
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bochs -f util/bochsrc.txt -q
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#TODO: when i inevitably do add libc, this is going to fail because they have the same name as the libk objects
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#TODO: so we'll need to do a batch rename on one of the two object files,
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libc.a: CFLAGS:=$(CFLAGS) -D__is_libc # Target rule to define __is_libc
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libc.a: $(libc_objs)
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$(AR) rcs $@ $(libc_objs)
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libk.a: CFLAGS:=$(CFLAGS) -D__is_libk # Target rule to define __is_libk
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libk.a: $(libk_objs)
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$(AR) rcs $@ $(libk_objs)
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install-headers:
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mkdir -p sysroot/usr/include
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cp -r --preserve=timestamps kernel/include/. sysroot/usr/include/.
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cp -r --preserve=timestamps libc/include/. sysroot/usr/include/.
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install-libs: $(binaries)
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mkdir -p sysroot/usr/lib
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cp -r --preserve=timestamps $(binaries) sysroot/usr/lib/.
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clean:
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-rm -rf iso/ sysroot/
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-rm $(shell find . -name "*.o")
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-rm $(shell find . -name "*.d")
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-rm *.iso *.elf *.a com1.out bochslog.txt
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-rm .clangd
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