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Implemented a proper libc

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This commit is contained in:
Tom-on
2024-10-05 13:34:24 +02:00
parent a6445ebcb6
commit 5a5ea4ea59
28 changed files with 258 additions and 123 deletions
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Makefile
+44 -27
View File
@@ -3,8 +3,8 @@ CC := i686-elf-gcc
LD := i686-elf-ld
AS := nasm
CFLAGS := -g -std=c17 -ffreestanding -fno-builtin -fno-stack-protector -fno-pie \
-Os -nostdinc -mgeneral-regs-only -m32 -march=i386 -Wall -Iinclude/c
CCFLAGS := -g -std=c17 -ffreestanding -fno-builtin -fno-stack-protector -fno-pie \
-Os -nostdinc -mgeneral-regs-only -m32 -march=i386 -Wall
LDFLAGS := -z notext -melf_i386 -nostdlib
ASFLAGS :=
@@ -12,61 +12,78 @@ include make.config
SRC := ./src
BIN := ./bin
LIBK_INC := ./include
LIBC_INC := ./include/libc
LIBC_DIR := ./libc
LIBK_DIR := ./libk
C_FILES := calc edit
FONTS := testfont term16n
BOOTLOADER := $(BIN)/stage1.bin $(BIN)/stage2.bin $(BIN)/stage3.bin
KERNEL := $(BIN)/kernel.bin
LIBC := $(BIN)/libc.o
# TODO: LIBK := $(BIN)/libk.o
ISO := kern.iso
.PHONY: os clean run
# Main compilation target
os: $(BIN) bootloader kernel $(C_FILES) $(FONTS)
@cc ./makedisk.c -o ./makedisk
@./makedisk # TODO: List of files
os: $(ISO)
$(ISO): $(BIN) $(BOOTLOADER) $(KERNEL) $(C_FILES) $(FONTS)
cc ./makedisk.c -o ./makedisk
./makedisk # TODO: List of files
@echo "\nDone!\n"
$(BIN):
@[ -d $(BIN) ] || mkdir $(BIN)
@rm -rf $(BIN)/*
[ -d $(BIN) ] || mkdir $(BIN)
rm -rf $(BIN)/*
# Bootloader: This target is responsible for creating stage?.bin (1,2,3)
bootloader: $(SRC)/stage1.asm $(SRC)/stage2.asm
$(BOOTLOADER): $(SRC)/stage1.asm $(SRC)/stage2.asm $(SRC)/stage3.c $(LIBC)
@echo "Assembling $(SRC)/stage1.asm..."
@$(AS) -fbin -o $(BIN)/stage1.bin $(SRC)/stage1.asm $(ASFLAGS)
$(AS) -fbin -o $(BIN)/stage1.bin $(SRC)/stage1.asm $(ASFLAGS)
@echo "Assembling $(SRC)/stage2.asm..."
@$(AS) -fbin -o $(BIN)/stage2.bin $(SRC)/stage2.asm $(ASFLAGS)
$(AS) -fbin -o $(BIN)/stage2.bin $(SRC)/stage2.asm $(ASFLAGS)
@echo "Compiling $(SRC)/stage3.c..."
@$(CC) $(CFLAGS) -Iinclude -o $(BIN)/stage3.o -c $(SRC)/stage3.c
@$(LD) $(LDFLAGS) -T$(SRC)/stage3.ld --oformat binary -o $(BIN)/stage3.bin $(BIN)/stage3.o
@rm $(BIN)/stage3.o
$(CC) $(CCFLAGS) -I$(LIBK_INC) -I$(LIBC_INC) -o $(BIN)/stage3.o -c $(SRC)/stage3.c
$(LD) $(LDFLAGS) -T$(SRC)/stage3.ld --oformat binary -o $(BIN)/stage3.bin $(BIN)/stage3.o $(LIBC)
rm $(BIN)/stage3.o
# Kernel: This target is responsible for creating kernel.bin
kernel: $(SRC)/kernel.c
$(KERNEL): $(SRC)/kernel.c $(LIBC) #TODO: $(LIBK)
@echo "Compiling $(SRC)/kernel.c..."
@$(CC) $(CFLAGS) -Iinclude -o $(BIN)/kernel.o -c $(SRC)/kernel.c
@$(LD) $(LDFLAGS) -T$(SRC)/kernel.ld --oformat binary -o $(BIN)/kernel.bin $(BIN)/kernel.o
@rm $(BIN)/kernel.o
$(CC) $(CCFLAGS) -I$(LIBK_INC) -I$(LIBC_INC) -o $(BIN)/kernel.o -c $(SRC)/kernel.c
$(LD) $(LDFLAGS) -T$(SRC)/kernel.ld --oformat binary -o $(BIN)/kernel.bin $(BIN)/kernel.o $(LIBC) #TODO: LIBK
rm $(BIN)/kernel.o
# This target compiles *.c (except kernel.c)
$(C_FILES):
$(C_FILES): $(LIBC)
@echo "Compiling $(SRC)/$@.c..."
@$(CC) $(CFLAGS) -o $(BIN)/$@.o -c $(SRC)/$@.c
@$(LD) $(LDFLAGS) -T$(SRC)/$@.ld --oformat binary -o $(BIN)/$@.bin $(BIN)/$@.o
@rm $(BIN)/$@.o
$(CC) $(CCFLAGS) -I$(LIBC_INC) -o $(BIN)/$@.o -c $(SRC)/$@.c
$(LD) $(LDFLAGS) -T$(SRC)/$@.ld --oformat binary -o $(BIN)/$@.bin $(BIN)/$@.o $(LIBC)
rm $(BIN)/$@.o
# This target builds all fonts inside src/fonts
$(LIBC): $(LIBC_DIR)/**.c
@echo "Compiling $(LIBC)..."
mkdir -p $(BIN)/libc
for f in libc/*.c; do $(CC) $(CCFLAGS) -I$(LIBC_INC) -o $(BIN)/$$f.o -c $$f; done
$(LD) $(LDFLAGS) -r -o $(LIBC) $(BIN)/libc/**.o
# This target retrieves all fonts inside src/fonts
$(FONTS):
@cp $(SRC)/fonts/$@.fnt $(BIN)/$@.fnt
cp $(SRC)/fonts/$@.fnt $(BIN)/$@.fnt
# Run QEMU
run:
qemu-system-x86_64\
-drive format=raw,file="./kern.iso",index=0,media=disk\
-drive format=raw,file=$(ISO),index=0,media=disk\
-m 256M -accel tcg -monitor stdio\
-rtc base=localtime,clock=host,driftfix=slew\
-audiodev coreaudio,id=audio0 -machine pcspk-audiodev=audio0
# Clean all build files
clean:
@rm -rf $(BIN)
@#rm -f kern.iso
@rm -f makedisk
rm -rf $(BIN)
rm -f makedisk