| # This option enables LTO for stage4 and LTO for generators in stage3 with profiledbootstrap. |
| # Otherwise, LTO is used in only stage3. |
| |
| STAGE3_CFLAGS += -flto=jobserver |
| override STAGEtrain_CFLAGS := $(filter-out -flto=jobserver,$(STAGEtrain_CFLAGS)) |
| STAGEtrain_GENERATOR_CFLAGS += -flto=jobserver |
| STAGEfeedback_CFLAGS += -flto=jobserver |
| |
| # 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 = /bin/true |
