| 1 | # This option enables LTO for stage2 and stage3 in slim mode |
| 2 | |
| 3 | STAGE2_CFLAGS += -flto=jobserver -frandom-seed=1 |
| 4 | STAGE3_CFLAGS += -flto=jobserver -frandom-seed=1 |
| 5 | STAGEprofile_CFLAGS += -flto=jobserver -frandom-seed=1 |
| 6 | STAGEtrain_CFLAGS += -flto=jobserver -frandom-seed=1 |
| 7 | STAGEfeedback_CFLAGS += -flto=jobserver -frandom-seed=1 |
| 8 | |
| 9 | # assumes the host supports the linker plugin |
| 10 | LTO_AR = $$r/$(HOST_SUBDIR)/prev-gcc/gcc-ar$(exeext) -B$$r/$(HOST_SUBDIR)/prev-gcc/ |
| 11 | LTO_RANLIB = $$r/$(HOST_SUBDIR)/prev-gcc/gcc-ranlib$(exeext) -B$$r/$(HOST_SUBDIR)/prev-gcc/ |
| 12 | |
| 13 | LTO_EXPORTS = AR="$(LTO_AR)"; export AR; \ |
| 14 | RANLIB="$(LTO_RANLIB)"; export RANLIB; |
| 15 | LTO_FLAGS_TO_PASS = AR="$(LTO_AR)" RANLIB="$(LTO_RANLIB)" |
| 16 | |
| 17 | do-compare = $(SHELL) $(srcdir)/contrib/compare-lto $$f1 $$f2 |