:wrench: 统一Makefile中的编译选项

kernel/Makefile

@@ -6,8 +6,12 @@ GARBAGE := $(foreach DIR,$(DIRS),$(addprefix $(DIR)/,$(GARBAGE_PATTERNS)))
 DIR_LIB=lib
 lib_patterns := *.a
 LIB_FILES := $(foreach DIR,$(DIR_LIB),$(addprefix $(DIR)/,$(lib_patterns)))
+
+CFLAGS := -mcmodel=large -fno-builtin -m64
+ASFLAGS := --64
+
 all: kernel
-	objcopy -I elf64-x86-64 -S -R ".comment" -O elf64-x86-64 kernel ../bin/kernel/kernel.elf
+	objcopy -I elf64-x86-64 -S -R ".comment" -R ".eh_frame" -O elf64-x86-64 kernel ../bin/kernel/kernel.elf
 # cp kernel ../bin/kernel/kernel.elf
 
 
@@ -17,43 +21,43 @@ kernel: head.o entry.o main.o printk.o trap.o mm.o irq.o 8259A.o process.o sysca
 
 head.o: head.S
 	gcc -E head.S > head.s # 预处理
-	as --64 -o head.o head.s
+	as $(ASFLAGS) -o head.o head.s
 #gcc -mcmodel=large -fno-builtin -m64 -c head.S -o head.o
 
 entry.o: exception/entry.S
 	gcc -E exception/entry.S > exception/entry.s
-	as --64 -o exception/entry.o exception/entry.s
+	as $(ASFLAGS) -o exception/entry.o exception/entry.s
 
 
 
 main.o: main.c 
 # -fno-builtin: 不使用C语言内建函数
 # The -m64 option sets int to 32bits and long and pointer to 64 bits and generates code for AMD’s x86-64 architecture.
-	gcc -mcmodel=large -fno-builtin -m64 -c main.c  -o main.o
+	gcc $(CFLAGS) -c main.c  -o main.o
 
 
 printk.o: common/printk.c
-	gcc -mcmodel=large -fno-builtin -m64 -c common/printk.c -o common/printk.o
+	gcc $(CFLAGS) -c common/printk.c -o common/printk.o
 
 trap.o:	exception/trap.c
-	gcc -mcmodel=large -fno-builtin -m64 -c exception/trap.c -o exception/trap.o
+	gcc $(CFLAGS) -c exception/trap.c -o exception/trap.o
 
 irq.o: exception/irq.c
-	gcc -mcmodel=large -fno-builtin -m64 -c exception/irq.c -o exception/irq.o
+	gcc $(CFLAGS) -c exception/irq.c -o exception/irq.o
 
 8259A.o: exception/8259A.c
-	gcc -mcmodel=large -fno-builtin -m64 -c exception/8259A.c -o exception/8259A.o
+	gcc $(CFLAGS) -c exception/8259A.c -o exception/8259A.o
 
 mm.o: mm/mm.c
-	gcc -mcmodel=large -fno-builtin -m64 -c mm/mm.c -o mm/mm.o
+	gcc $(CFLAGS) -c mm/mm.c -o mm/mm.o
 
 process.o: process/process.c
-	gcc -mcmodel=large -fno-builtin -m64 -c process/process.c -o process/process.o
+	gcc $(CFLAGS) -c process/process.c -o process/process.o
 syscall.o: syscall/syscall.c
-	gcc -mcmodel=large -fno-builtin -m64 -c syscall/syscall.c -o syscall/syscall.o
+	gcc $(CFLAGS) -c syscall/syscall.c -o syscall/syscall.o
 
 multiboot2.o: driver/multiboot2/multiboot2.c 
-	gcc -mcmodel=large -fno-builtin -m64 -c driver/multiboot2/multiboot2.c  -o driver/multiboot2/multiboot2.o
+	gcc $(CFLAGS) -c driver/multiboot2/multiboot2.c  -o driver/multiboot2/multiboot2.o
 
 clean: 
 	rm -rf $(GARBAGE)