Extra compiler flags for AMD64

amd64/flags.mk

@@ -4,7 +4,8 @@ cflags += --target=x86_64-pc-none-elf \
 					-mno-avx \
 					-mno-mmx \
 					-mno-80387 \
-					-mno-red-zone
+					-mno-red-zone \
+					-mcmodel=large
 
 ldflags += --target=x86_64-pc-none-elf \
 					 -Wl,-zmax-page-size=0x1000

generic/flags.mk

@@ -5,7 +5,9 @@ cflags += -nostdinc \
 					-std=c11 \
 					-pedantic \
 					-Wall \
-					-Wextra
+					-Wextra \
+					-ffunction-sections \
+					-fdata-sections
 
 cflags += -isystem ../include
 
@@ -13,4 +15,7 @@ ldflags += -ffreestanding \
 					 -nostdlib \
 					 -fno-builtin \
 					 -fuse-ld=lld \
-					 -static
+					 -static \
+					 -Wl,--gc-sections \
+					 -Wl,--strip-all \
+					 -flto