[OpenWrt-Devel] [PATCH 1/4] dnsmasq: Activate LTO

[Hauke Mehrtens]

This decreases the binary size when PIE ASLR is activated by 8% on MIPS BE.

old:
202,020 /usr/sbin/dnsmasq

new:
185,676 /usr/sbin/dnsmasq

Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---
 package/network/services/dnsmasq/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/package/network/services/dnsmasq/Makefile b/package/network/services/dnsmasq/Makefile
index 5c114eb1c6..e86b031e3f 100644
--- a/package/network/services/dnsmasq/Makefile
+++ b/package/network/services/dnsmasq/Makefile
@@ -127,8 +127,8 @@ endef
 Package/dnsmasq-dhcpv6/conffiles = $(Package/dnsmasq/conffiles)
 Package/dnsmasq-full/conffiles = $(Package/dnsmasq/conffiles)
 
-TARGET_CFLAGS += -ffunction-sections -fdata-sections
-TARGET_LDFLAGS += -Wl,--gc-sections
+TARGET_CFLAGS += -flto
+TARGET_LDFLAGS += -flto=jobserver
 
 COPTS = -DHAVE_UBUS \
 	$(if $(CONFIG_IPV6),,-DNO_IPV6)
-- 
2.20.1


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