Makefile.gcc

#
# This file and its contents are supplied under the terms of the
# Common Development and Distribution License ("CDDL"), version 1.0.
# You may only use this file in accordance with the terms of version
# 1.0 of the CDDL.
#
# A full copy of the text of the CDDL should have accompanied this
# source.  A copy of the CDDL is also available via the Internet at
# http://www.illumos.org/license/CDDL.
#
# Copyright 2020 Joyent, Inc.

#
# Shared makefile for building GCC versions. For the most part, the build is the
# same, but with different component versions.
#

#
# The gcc build system expects that the build is done from a separate objdir
# instead of in-place in the source.
#
SEPARATE_BUILD = yes

CFLAGS = -g -O2
CFLAGS.64 = -g -O2

#
# Note this presumes only one of 32/64 bit builds.
#
ifeq ($(BUILD64),yes)
CFLAGS += -m64
TRIPLET = x86_64-pc-solaris2.11
SUFFIX = 64
GCC.64 = $(GCC.host.64)
GXX.64 = $(GXX.host.64)
else
TRIPLET = i386-pc-solaris2.11
SUFFIX = 32
GCC.32 = $(GCC.host.32)
GXX.32 = $(GXX.host.32)
endif


#
# We set --enable-bootstrap to allow the build to mismatch the host
#
AUTOCONF_OPTS += \
	--enable-bootstrap \
	--build=$(TRIPLET) \
	--host=$(TRIPLET) \
	--with-ld=/usr/bin/ld \
	--without-gnu-ld \
	--with-gnu-as \
	--with-as=$(DESTDIR)/usr/gnu/bin/gas \
	--enable-languages="c,c++" \
	--enable-shared \
	--disable-nls

AUTOCONF_PREFIX = /usr/gcc/$(GCC_VER)

AUTOCONF_CPPFLAGS =
AUTOCONF_LIBS =
AUTOCONF_LIBS.64 =
AUTOCONF_LDFLAGS =
AUTOCONF_LDFLAGS.64 =
GENLDFLAGS =

AUTOCONF_ENV += \
	DESTDIR=$(DESTDIR) \
	MAKE=$(MAKE)

PATCHES = Patches/*
ALL_TGT = bootstrap

include ../Makefile.targ
include ../Makefile.targ.autoconf

MPFR_TARBALL ?= $(MPFR_VER).tar.bz2
GMP_TARBALL ?= $(GMP_VER).tar.bz2
MPC_TARBALL ?= $(MPC_VER).tar.gz

#
# To reduce repository size, the source files are stored in Manta and
# need to be downloaded (excluding gcc4).
#
$(TARBALL) $(MPFR_TARBALL) $(GMP_TARBALL) $(MPC_TARBALL):
	if [[ ! -f $@.sha1 ]]; then \
		echo "Missing required digest file!"; \
		exit 1; \
	fi; \
	curl -o $@.tmp $(FETCH_BASE)/$@
	digest -a sha1 $@.tmp > $@.tmp.sha1
	cmp -s $@.sha1 $@.tmp.sha1
	rm -f $@.tmp.sha1
	mv $@.tmp $@

#
# We could use the support libraries from the build system (since the compiler
# will be run here), but there's no good way to make gcc build itself correctly
# if we do.  There are two main problems:
#
# 1. Stage2 and later cc1 and company don't honour any combination of LDFLAGS,
# LDFLAGS_FOR_TARGET, BOOT_LDFLAGS, STAGE2_LDFLAGS, etc.  The only ways to
# get these things built with -R/opt/local/lib are to use LD_OPTIONS, which will
# yield the wrong results for libraries, or to hack configure.
#
# 2. Even if we could get -R/opt/local/lib into these programs without building
# the libraries incorrectly, it would still be wrong.  The pkgsrc lib directory
# on many systems contains libgcc_s.so.1; however, cc1 was built by the stage2
# compiler and should find the libgcc that matches that compiler.  That happens
# to be the one we just built, not the pkgsrc one.
#
# Instead we build these libraries directly ourselves.
#
ifeq ($(GCC_VER),4)
$(AUTOCONF_OUT.$(SUFFIX)): | $(VER.$(SUFFIX))/mpfr $(VER.$(SUFFIX))/gmp
else
$(AUTOCONF_OUT.$(SUFFIX)): | $(VER.$(SUFFIX))/mpfr $(VER.$(SUFFIX))/gmp $(VER.$(SUFFIX))/mpc
endif

$(VER.$(SUFFIX))/mpfr: $(MPFR_TARBALL) | $(VER.$(SUFFIX))
	-rm -rf $@
	mkdir -p .unpack
	gtar x -C .unpack --no-same-owner -f $(MPFR_TARBALL)
	mv -f .unpack/$(MPFR_VER) ./$@
	-rmdir .unpack
	chmod 755 $@/configure
	touch $@/configure

$(VER.$(SUFFIX))/gmp: $(GMP_TARBALL) | $(VER.$(SUFFIX))
	-rm -rf $@
	mkdir -p .unpack
	gtar x -C .unpack --no-same-owner -f $(GMP_TARBALL)
	mv -f .unpack/$(GMP_VER) ./$@
	-rmdir .unpack
	chmod 755 $@/configure
	touch $@/configure

$(VER.$(SUFFIX))/mpc: $(MPC_TARBALL) | $(VER.$(SUFFIX))
	-rm -rf $@
	mkdir -p .unpack
	gtar x -C .unpack --no-same-owner -f $(MPC_TARBALL)
	mv -f .unpack/$(MPC_VER) ./$@
	-rmdir .unpack
	chmod 755 $@/configure
	touch $@/configure

ifeq ($(STRAP),strap)
.PHONY: strapfix
strapfix:
	$(BASE)/../tools/gcc-strapfix -d $(DESTDIR) -v $(GCC_VER) \
	    -p $(PRIMARY_COMPILER)
else
#
# A non-strap build: do not install anything other than our runtime libraries
# saved by gcc-strapfix.  This should only happen for the primary compiler.
#
.PHONY: fixup
fixup:
	cd $(DESTDIR)/usr/lib && gtar xvf $(STRAPPROTO)/gcclibs.tar.gz
endif