From f3754b842937f222a58472ea7010eb4246ef1157 Mon Sep 17 00:00:00 2001
From: Andreas Kling <awesomekling@gmail.com>
Date: Tue, 23 Apr 2019 21:37:10 +0200
Subject: [PATCH] Build: Pass --gc-sections to the linker in all builds.

This removes unused sections from the output and reduces the binary size
of everything we compile.
---
 Kernel/Makefile | 5 ++---
 Makefile.common | 2 +-
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/Kernel/Makefile b/Kernel/Makefile
index d756e2e5f4..85deede46f 100644
--- a/Kernel/Makefile
+++ b/Kernel/Makefile
@@ -82,8 +82,7 @@ OBJS = $(CXX_OBJS) Boot/boot.ao
 KERNEL = kernel
 CXXFLAGS += -ffreestanding -mregparm=3 -mno-80387 -mno-mmx -mno-sse -mno-sse2
 DEFINES += -DKERNEL
-LD = i686-pc-serenity-ld
-LDFLAGS += -T linker.ld
+LDFLAGS += -Ttext 0x10000 -Wl,-T linker.ld -nostdlib
 
 all: $(KERNEL) kernel.map
 
@@ -91,7 +90,7 @@ kernel.map: kernel
 	@echo "MKMAP $@"; sh mkmap.sh
 
 $(KERNEL): $(OBJS)
-	@echo "LD $@"; $(LD) $(LDFLAGS) -o $@ -Ttext 0x10000 $(OBJS)
+	@echo "LD $@"; $(LD) $(LDFLAGS) -o $@ $(OBJS)
 
 .cpp.o:
 	@echo "CXX $<"; $(CXX) $(CXXFLAGS) -o $@ -c $<
diff --git a/Makefile.common b/Makefile.common
index b828291373..8e34eaa45d 100644
--- a/Makefile.common
+++ b/Makefile.common
@@ -8,7 +8,7 @@ MAKEFILE_PATH := $(abspath $(lastword $(MAKEFILE_LIST)))
 SERENITY_BASE_DIR := $(patsubst %/,%,$(dir $(MAKEFILE_PATH)))
 
 INCLUDE_FLAGS = -I$(SERENITY_BASE_DIR) -I. -I$(SERENITY_BASE_DIR)/LibC -I$(SERENITY_BASE_DIR)/Servers
-LDFLAGS = -L$(SERENITY_BASE_DIR)/LibC -L$(SERENITY_BASE_DIR)/LibCore -L$(SERENITY_BASE_DIR)/LibM -L$(SERENITY_BASE_DIR)/LibGUI
+LDFLAGS = -L$(SERENITY_BASE_DIR)/LibC -L$(SERENITY_BASE_DIR)/LibCore -L$(SERENITY_BASE_DIR)/LibM -L$(SERENITY_BASE_DIR)/LibGUI -Wl,--gc-sections
 CLANG_FLAGS = -Wconsumed -m32 -ffreestanding -march=i686
 #SUGGEST_FLAGS = -Wsuggest-final-types -Wsuggest-final-methods -Wsuggest-override #-Wsuggest-attribute=noreturn 
 DEFINES = -DSANITIZE_PTRS