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# MIT License, Copyright (c) 2021 Marvin Borner
CC = $(PWD)/cross/opt/bin/i686-elf-gcc
LD = $(PWD)/cross/opt/bin/i686-elf-ld
OC = $(PWD)/cross/opt/bin/i686-elf-objcopy
ST = $(PWD)/cross/opt/bin/i686-elf-strip
AS = nasm
BUILD = $(PWD)/build/
CFLAGS = -Wall -Wextra -Werror -std=c99 -m32 -nostdlib -nostdinc -fno-builtin -fno-profile-generate -fno-omit-frame-pointer -fno-common -ffreestanding -Ofast
ASFLAGS = -f elf32
all: bootloader example
bootloader:
@mkdir -p $(BUILD)
@$(CC) -c $(CFLAGS) load.c -o $(BUILD)/load.o
@$(LD) -N -emain -Ttext 0x00009000 -o $(BUILD)/load.bin $(BUILD)/load.o --oformat binary
@$(AS) -f bin entry.asm -o $(BUILD)/boot.bin
example:
@mkdir -p $(BUILD)
@$(CC) -c $(CFLAGS) example.c -o $(BUILD)/example.o
@$(LD) -N -ekernel_main -o $(BUILD)/example $(BUILD)/example.o
clean:
@find . \( -name "*.o" -or -name "*.a" -or -name "*.elf" -or -name "*.bin" \) -type f -delete
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