From: Wei Liu <wei.liu2@citrix.com>
Date: Fri, 23 Dec 2016 12:12:36 +0000 (+0000)
Subject: build: move setting LTO options to xen/Rules.mk
X-Git-Tag: archive/raspbian/4.11.1-1+rpi1~1^2~66^2~3051
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=d6924bd032afc285a69b727715d6010eac1fc6c1;p=xen.git

build: move setting LTO options to xen/Rules.mk

Having them in StdGNU.mk would affect both hypervisor and tools build.
However judging from the commit message of e4cdd74f LTO was only meant
to affect hypvervisor build.

Move the relevant bits to xen/Rules.mk.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
---

diff --git a/config/StdGNU.mk b/config/StdGNU.mk
index 6be8233205..039274ea61 100644
--- a/config/StdGNU.mk
+++ b/config/StdGNU.mk
@@ -35,7 +35,3 @@ UTIL_LIBS = -lutil
 SONAME_LDFLAG = -soname
 SHLIB_LDFLAGS = -shared
 
-ifeq ($(lto),y)
-CFLAGS += -flto
-LDFLAGS-$(clang) += -plugin LLVMgold.so
-endif
diff --git a/xen/Rules.mk b/xen/Rules.mk
index 24d13dcad1..77bcd44922 100644
--- a/xen/Rules.mk
+++ b/xen/Rules.mk
@@ -120,6 +120,8 @@ $(filter-out %.init.o $(nogcov-y),$(obj-y) $(obj-bin-y) $(extra-y)): CFLAGS += -
 endif
 
 ifeq ($(CONFIG_LTO),y)
+CFLAGS += -flto
+LDFLAGS-$(clang) += -plugin LLVMgold.so
 # Would like to handle all object files as bitcode, but objects made from
 # pure asm are in a different format and have to be collected separately.
 # Mirror the directory tree, collecting them as built_in_bin.o.