blob: 99b2dd8f3e2296f08c6e80c7001b4e7e27fa0495 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
# Kernel makefile
CFLAGS := -ffreestanding -Wall -Wextra -g -std=gnu99 -O2 -Iinclude --sysroot=$(SYSROOT) \
-isystem $(SYSROOT)/usr/include
CXXFLAGS := -ffreestanding -Wall -Wextra -fno-exceptions -fno-rtti -g -O2 -Iinclude --sysroot=$(SYSROOT) \
-isystem $(SYSROOT)/usr/include -std=gnu++20
LDFLAGS := -T arch/$(ARCH)/linker.ld -ffreestanding -g -O2 -Iinclude --sysroot=$(SYSROOT) \
-isystem $(SYSROOT)/usr/include
ASMFLAGS :=
ifeq ($(ARCH),x86_64)
CFLAGS += -mno-red-zone -mcmodel=kernel -mno-80387 -mno-sse -mno-sse2 -mno-mmx
CXXFLAGS += -mno-red-zone -mcmodel=kernel -mno-80387 -mno-sse -mno-sse2 -mno-mmx
LDFLAGS += -mno-red-zone -mcmodel=kernel -mno-80387 -mno-sse -mno-sse2 -mno-mmx \
-z max-page-size=0x1000
ASMFLAGS += -felf64
endif
ifndef SYSROOT
$(error No sysroot specified)
endif
LIBS = -nostdlib -lc -lgcc
#Find all the source files
CPP_SRCS := $(shell find . -type f -name '*.cpp' -not -path './arch/*') \
$(shell find $(PWD)/kernel/arch/$(ARCH) -type f -name '*.cpp')
HEADERS := $(shell find ./include -type f -name '*.h')
ASMFILES := $(shell find . -type f -name '*.asm' -not -path './arch/*') \
$(shell find $(PWD)/kernel/arch/$(ARCH) -type f -name '*.asm')
#OBJS := $(patsubst %.c,%.o,$(C_SOURCES))
OBJS := $(patsubst %.cpp,%.o,$(CPP_SRCS))
OBJS += $(patsubst %.asm,%.o,$(ASMFILES))
#DEPFILES := $(patsubst %.c,%.d,$(C_SOURCES))
DEPFILES := $(patsubst %.cpp,%.d,$(CPP_SRCS))
# LINKLST := crti.o
# LINKLST += $(CRTBEGIN)
LINKLST += $(OBJS)
LINKLST += $(LIBS)
# LINKLST += $(CRTEND)
# LINKLST += crtn.o
-include $(DEPFILES)
.PHONY: all clean
all: kernel.bin
kernel.bin: ${OBJS}
$(info [INFO] Linking kernel)
$(CXX) ${LDFLAGS} -o $@ $(LINKLST)
%.o: %.cpp
# $(info [INFO] Compiling $<)
$(CXX) ${CXXFLAGS} -MMD -MP -c $< -o $@
%.o: %.c
# $(info [INFO] Compiling $<)
$(CC) $(CFLAGS) -MMD -MP -c $< -o $@
%.o: %.asm
$(info [INFO] Assembling $<)
$(NASM) $< $(ASMFLAGS) -o $@ -g
# crti.o:
# $(NASM) arch/$(ARCH)/crti.asm $(ASMFLAGS) -o $@
# crtn.o:
# $(NASM) arch/$(ARCH)/crtn.asm $(ASMFLAGS) -o $@
install-headers: $(HEADERS)
cp -r --preserve=timestamps include/. $(SYSROOT)/usr/include
clean:
$(info [INFO] Cleaning)
$(RM) ${OBJS} $(DEPFILES) kernel.bin
|
