Reduce binary sizes for the kernel and userspace apps

kernel/Makefile

@@ -4,7 +4,8 @@ include $(ROOT)/mk/grabsrc.mk
 
 PUTCHAR_ ?= fb
 
-CFLAGS := -ffreestanding -Wall -Wextra -g -fcommon -nostdinc
+CFLAGS := -ffreestanding -Wall -Wextra -fcommon -nostdinc \
+					-fdata-sections -ffunction-sections
 
 CFLAGS += -I. \
           -I$(ROOT)/limine \
@@ -24,7 +25,8 @@ CFLAGS += -I. \
 
 include arch/$(ARCH)/$(ARCH).mk
 
-LDFLAGS += -nostdlib -static -T arch/$(ARCH)/link.ld $(shell $(CC) -print-libgcc-file-name)
+LDFLAGS += -nostdlib -static -T arch/$(ARCH)/link.ld $(shell $(CC) -print-libgcc-file-name) \
+					 --gc-sections --strip-all
 
 SRCFILES :=