From f4a683bffc08efb2d19bec53432627ce651c7180 Mon Sep 17 00:00:00 2001
From: Nick Chan <towinchenmi@gmail.com>
Date: Sun, 22 Jan 2023 12:17:37 +0800
Subject: [PATCH] tries to decrease binary size

---
 .github/workflows/build-linux.yml | 6 +++---
 Makefile                          | 5 ++++-
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/build-linux.yml b/.github/workflows/build-linux.yml
index 3b66768..f69e4e0 100644
--- a/.github/workflows/build-linux.yml
+++ b/.github/workflows/build-linux.yml
@@ -57,9 +57,9 @@ jobs:
               ;;
           esac
           echo "PKG_CONFIG_PATH=$(pwd)/sysroot/usr/local/lib/pkgconfig" >> $GITHUB_ENV
-          echo "CFLAGS=-I$(pwd)/sysroot/usr/local/include -L$(pwd)/sysroot/usr/local/lib" >> $GITHUB_ENV
-          echo "CXXFLAGS=-I$(pwd)/sysroot/usr/local/include -L$(pwd)/sysroot/usr/local/lib" >> $GITHUB_ENV
-          echo "LDFLAGS=-I$(pwd)/sysroot/usr/local/include -L$(pwd)/sysroot/usr/local/lib" >> $GITHUB_ENV
+          echo "CFLAGS=-fdata-sections -ffunction-sections -I$(pwd)/sysroot/usr/local/include -L$(pwd)/sysroot/usr/local/lib" >> $GITHUB_ENV
+          echo "CXXFLAGS=-fdata-sections -ffunction-sections -I$(pwd)/sysroot/usr/local/include -L$(pwd)/sysroot/usr/local/lib" >> $GITHUB_ENV
+          echo "LDFLAGS=-Wl,--gc-sections -fdata-sections -ffunction-sections -I$(pwd)/sysroot/usr/local/include -L$(pwd)/sysroot/usr/local/lib" >> $GITHUB_ENV
           echo "DESTDIR=$(pwd)/sysroot" >> $GITHUB_ENV
           echo "PREFIX=/usr/local" >> $GITHUB_ENV
           echo "CONFIGURE_ARGS=--build=x86_64-linux-gnu --host=${{ matrix.triple }} --prefix=/usr/local --disable-shared --enable-static" >> $GITHUB_ENV
diff --git a/Makefile b/Makefile
index acfe24a..d598268 100644
--- a/Makefile
+++ b/Makefile
@@ -9,10 +9,12 @@ TARGET_OS = $(shell uname -s)
 endif
 ifeq ($(TARGET_OS),Darwin)
 CFLAGS += -mmacosx-version-min=10.8
+LDFLAGS += -Wl,-dead_strip
 LIBS += $(DEP)/lib/libcrypto.35.tbd $(DEP)/lib/libssl.35.tbd $(DEP)/lib/libusb-1.0.a
 LIBS += -framework CoreFoundation -framework SystemConfiguration -framework IOKit -framework Security
 else
-LDFLAGS += -static -no-pie
+CFLAGS += -fdata-sections -ffunction-sections
+LDFLAGS += -static -no-pie -Wl,--gc-sections
 LIBS += $(DEP)/lib/libssl.a $(DEP)/lib/libcrypto.a $(DEP)/lib/libreadline.a -latomic
 endif
 LIBS += $(DEP)/lib/libusb-1.0.a
@@ -60,3 +62,4 @@ distclean: clean
 	rm -rf palera1n-* palera1n*.dSYM src/checkra1n-*
 
 .PHONY: all palera1n clean
+