X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;ds=sidebyside;f=config%2Fbootstrap-lto.mk;h=768b6337bd6a463bef7a919e630d9fb2fe5f776c;hb=452f10a186cdb18091f590315c55488b871812e3;hp=27bad1529bee612d466d4a9add71da79c92c4d35;hpb=024659e6d6db5ae5d8f8db12234f4c12e2f2b9f8;p=deliverable%2Fbinutils-gdb.git

diff --git a/config/bootstrap-lto.mk b/config/bootstrap-lto.mk
index 27bad1529b..768b6337bd 100644
--- a/config/bootstrap-lto.mk
+++ b/config/bootstrap-lto.mk
@@ -1,7 +1,17 @@
-# This option enables LTO for stage2 and stage3.
-# FIXME: Our build system is not yet able to use gcc-ar wrapper, so we need
-# to go with -ffat-lto-objects. 
+# This option enables LTO for stage2 and stage3 in slim mode
 
-STAGE2_CFLAGS += -flto=jobserver -frandom-seed=1 -ffat-lto-objects
-STAGE3_CFLAGS += -flto=jobserver -frandom-seed=1 -ffat-lto-objects
-STAGEprofile_CFLAGS += -fno-lto
+STAGE2_CFLAGS += -flto=jobserver -frandom-seed=1
+STAGE3_CFLAGS += -flto=jobserver -frandom-seed=1
+STAGEprofile_CFLAGS += -flto=jobserver -frandom-seed=1
+STAGEtrain_CFLAGS += -flto=jobserver -frandom-seed=1
+STAGEfeedback_CFLAGS += -flto=jobserver -frandom-seed=1
+
+# assumes the host supports the linker plugin
+LTO_AR = $$r/$(HOST_SUBDIR)/prev-gcc/gcc-ar$(exeext) -B$$r/$(HOST_SUBDIR)/prev-gcc/
+LTO_RANLIB = $$r/$(HOST_SUBDIR)/prev-gcc/gcc-ranlib$(exeext) -B$$r/$(HOST_SUBDIR)/prev-gcc/
+
+LTO_EXPORTS = AR="$(LTO_AR)"; export AR; \
+	      RANLIB="$(LTO_RANLIB)"; export RANLIB;
+LTO_FLAGS_TO_PASS = AR="$(LTO_AR)" RANLIB="$(LTO_RANLIB)"
+
+do-compare = $(SHELL) $(srcdir)/contrib/compare-lto $$f1 $$f2