1# Top level -*- makefile -*- fragment for LTO 2# Copyright (C) 2009-2018 Free Software Foundation, Inc. 3 4#This file is part of GCC. 5 6#GCC is free software; you can redistribute it and/or modify 7#it under the terms of the GNU General Public License as published by 8#the Free Software Foundation; either version 3, or (at your option) 9#any later version. 10 11#GCC is distributed in the hope that it will be useful, 12#but WITHOUT ANY WARRANTY; without even the implied warranty of 13#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14#GNU General Public License for more details. 15 16# You should have received a copy of the GNU General Public License 17# along with GCC; see the file COPYING3. If not see 18# <http://www.gnu.org/licenses/>. 19 20# Variables 21 22# The name of the LTO compiler. 23LTO_EXE = lto1$(exeext) 24# The LTO-specific object files inclued in $(LTO_EXE). 25LTO_OBJS = lto/lto-lang.o lto/lto.o lto/lto-object.o attribs.o lto/lto-partition.o lto/lto-symtab.o 26lto_OBJS = $(LTO_OBJS) 27 28# this is only useful in a LTO bootstrap, but this does not work right 29# now. Should reenable after this is fixed, but only when LTO bootstrap 30# is enabled. 31 32#ifeq ($(if $(wildcard ../stage_current),$(shell cat \ 33# ../stage_current)),stageautofeedback) 34#$(LTO_OBJS): CFLAGS += -fauto-profile=lto1.fda 35#$(LTO_OBJS): lto1.fda 36#endif 37 38# Rules 39 40# These hooks are used by the main GCC Makefile. Consult that 41# Makefile for documentation. 42lto.all.cross: $(LTO_EXE) 43lto.start.encap: $(LTO_EXE) 44lto.rest.encap: 45lto.tags: 46lto.install-common: 47lto.install-man: 48lto.install-info: 49lto.dvi: 50lto.pdf: 51lto.install-pdf: 52lto.html: 53lto.install-html: 54lto.uninstall: 55lto.info: 56lto.man: 57lto.srcextra: 58lto.srcman: 59lto.srcinfo: 60lto.install-plugin: 61 62lto.mostlyclean: 63 rm -f $(LTO_OBJS) $(LTO_EXE) lto1.fda 64 65lto.clean: 66lto.distclean: 67lto.maintainer-clean: 68lto.stage1: 69lto.stage2: 70lto.stage3: 71lto.stage4: 72lto.stageprofile: 73lto.stagefeedback: 74 75# LTO rules. 76 77# Use strict warnings for this front end. 78lto-warn = $(STRICT_WARN) 79 80$(LTO_EXE): $(LTO_OBJS) $(BACKEND) $(LIBDEPS) 81 +$(LLINKER) $(ALL_LINKERFLAGS) $(LDFLAGS) -o $@ \ 82 $(LTO_OBJS) $(BACKEND) $(BACKENDLIBS) $(LIBS) 83 84lto1.fda: ../prev-gcc/lto1$(exeext) ../prev-gcc/$(PERF_DATA) 85 $(CREATE_GCOV) -binary ../prev-gcc/lto1$(exeext) -gcov lto1.fda -profile ../prev-gcc/$(PERF_DATA) -gcov_version 1 86 87# LTO testing is done as part of C/C++/Fortran etc. testing. 88check-lto: 89