From 3f26126aec6a7712634cbc8411ab5bb6bab74579 Mon Sep 17 00:00:00 2001
From: "Tom G. Christensen" <tgc@jupiterrise.com>
Date: Sat, 23 Nov 2013 14:58:45 +0100
Subject: [PATCH] gcc: common settings and functions for gcc package building

---
 gcc/build.sh.gcc.common | 288 ++++++++++++++++++++++++++++++++++++++++
 gcc/build.sh.gcc.cpu    |  28 ++++
 2 files changed, 316 insertions(+)
 create mode 100644 gcc/build.sh.gcc.common
 create mode 100644 gcc/build.sh.gcc.cpu

diff --git a/gcc/build.sh.gcc.common b/gcc/build.sh.gcc.common
new file mode 100644
index 0000000..d17973a
--- /dev/null
+++ b/gcc/build.sh.gcc.common
@@ -0,0 +1,288 @@
+# This script defines settings and functions common to all
+# gcc packages. It should be included from build.sh.
+###########################################################
+
+# GCC package naming guide
+# gcc - c
+# gcc-chill - ch
+# gcc-c++ - cx
+# gcc-g77 - ft
+# gcc-gfortran - ft
+# gcc-gnat - gn
+# gcc-go - go
+# gcc-java - jv
+# gcc-objc - ob
+# gcc-objc++ - ox
+
+# GCC shared libraries
+# 2.95.3: libstdc++.so.2
+# 3.0.4: libstdc++.so.3, libgcc_s.so.1, libobjc.so.1
+# 3.1.1: libstdc++.so.4, libgcc_s.so.1, libobjc.so.1, libg2c.so.0
+# 3.2.3: libstdc++.so.5, libgcc_s.so.1, libobjc.so.1, libg2c.so.0
+# 3.3.6: libstdc++.so.5, libgcc_s.so.1, libobjc.so.1, libg2c.so.0
+# 3.4.6: libstdc++.so.6, libgcc_s.so.1, libobjc.so.1, libg2c.so.0
+# 4.0.4: libstdc++.so.6, libgcc_s.so.1, libobjc.so.1, libgfortran.so.0
+# 4.1.2: libstdc++.so.6, libgcc_s.so.1, libobjc.so.1, libgfortran.so.1, libssp.so.0
+# 4.2.4: libstdc++.so.6, libgcc_s.so.1, libobjc.so.2, libgfortran.so.2, libssp.so.0, libgomp.so.1
+# 4.3.6: libstdc++.so.6, libgcc_s.so.1, libobjc.so.2, libgfortran.so.3, libssp.so.0, libgomp.so.1
+
+# Global settings
+__configure="$srcdir/$topsrcdir/configure"
+make_build_target=bootstrap
+
+# Define abbreviated version number (for pkgdef)
+abbrev_ver=$(echo $version | ${__tr} -d '.')
+# Just major.minor, no subminors
+majorminor=$(echo $version | cut -d. -f1-2)
+abbrev_majorminor=$(echo $majorminor | tr -d '.')
+# gcc 2.95 should be 29
+[ $abbrev_majorminor -eq 295 ] && abbrev_majorminor=29
+
+# Initialize CPU settings for GCC
+. ${BUILDPKG_BASE}/gcc/build.sh.gcc.cpu
+
+# save main unversioned installdir $prefix as $lprefix
+# $prefix will be redefined as the versioned installdir
+lprefix=$prefix
+prefix=${lprefix}/${topdir}${abbrev_majorminor}
+
+# In /usr/tgcware/gcc$abbrev_majorminor goes {bin,man,info}
+# everything else goes to /usr/tgcware/{lib,libexec,include,share}
+# java/gcj has some files in lib that are unversioned and will
+# cause conflicts if multiple versions are attempted to be installed
+
+# Common config args for all GCCs
+global_config_args="--prefix=$lprefix --with-local-prefix=$prefix --bindir=${prefix}/bin --mandir=${prefix}/man --infodir=${prefix}/info --disable-nls --enable-shared"
+
+# Solaris 2.5, 2.5.1 & 2.6 support posix '95 threads
+pthreads="--enable-threads=posix95"
+# For gcc < 4.0 this is the same as posix
+[ $abbrev_majorminor -lt 40 ] && pthreads="--enable-threads=posix"
+# For Solaris < 2.5 always use 'solaris' threads
+[ ${gnu_os_ver/./} -lt 25 ] && pthreads="--enable-threads=solaris"
+
+# For gcc < 3.4 we adjust the c++ include path to match gcc > 3.3
+[ $abbrev_majorminor -lt 34 ] && gxxinclude="--with-gxx-include-dir=$lprefix/include/c++/$version"
+
+# Enable all languages
+langs="--enable-languages=c,c++,objc,fortran,ada,obj-c++"
+# For gcc < 4.0 fortran is f77
+[ $abbrev_majorminor -lt 40 ] && langs=${langs/fortran/f77}
+# For gcc 4.0 fortran is f95
+[ $abbrev_majorminor -eq 40 ] && langs=${langs/fortran/f95}
+# No ada for gcc < 3.1
+[ $abbrev_majorminor -lt 31 ] && langs=${langs/,ada/}
+# No obj-c++ for gcc < 4.1
+[ $abbrev_majorminor -lt 41 ] && langs=${langs%%,obj-c++}
+
+# Use Solaris ld by default
+linker="--without-gnu-ld --with-ld=/usr/ccs/bin/ld"
+# GNU assembler
+gnuassembler="--with-gnu-as --with-as=/usr/tgcware/bin/gas"
+# Solaris assembler
+sunassembler="--without-gnu-as --with-as=/usr/ccs/bin/as"
+# For gcc < 3.4 we must use the Solaris assembler or the ada frontend will
+# fail to build with symbol scoping issues
+# For gcc > 3.3 we use the GNU assembler from binutils
+[ $abbrev_majorminor -lt 34 ] && assembler=$sunassembler
+[ $abbrev_majorminor -gt 33 ] && assembler=$gnuassembler
+# On sparc gcc 4.3.6 fails comparison between stage2 and stage3 when using the
+# GNU assembler so for sparc we always use the Solaris assembler
+[ "$build_arch" = "sparc" ] && assembler=$sunassembler
+
+# For gcc 4.0 we need to explicitly disable COMDAT group support
+# since configure fails to check if ld also supports it (and it does not)
+[ $abbrev_majorminor -eq 40 ] && ac_overrides="gcc_cv_as_comdat_group=no gcc_cv_as_comdat_group_percent=no"
+
+# For libiconv
+hostlibs=(--with-libiconv-prefix=$lprefix)
+
+# These libraries are needed based on the GCC version being built
+withgmp="--with-gmp=$lprefix"
+withmpfr="--with-mpfr=$lprefix"
+[ $abbrev_majorminor -ge 40 ] && hostlibs+=($withgmp $withmpfr)
+
+# Assemble a default configure_args
+configure_args=($global_config_args $gxxinclude $pthreads "${hostlibs[@]}" $linker $assembler $langs $gcc_cpu)
+
+# Set a build vendor for gcc > 4.2
+gccbugurl=http://jupiterrise.com/tgcware
+gccpkgversion="$pkgdirdesig ${version}-${pkgver}"
+[ $abbrev_majorminor -gt 42 ] && configure_args+=(--with-pkgversion="$gccpkgversion" --with-bugurl=$gccbugurl)
+
+# Solaris 2.6 support was marked obsolete in gcc 4.3.x
+[ $abbrev_majorminor -eq 43 -a "$gnu_os_ver" = "2.6" ] && configure_args=(--enable-obsolete "${configure_args[@]}")
+
+# Default
+objdir=all_native
+
+# For gcc > 3.3
+libsubdir=gcc
+# gcc < 3.4 uses gcc-lib
+[ $abbrev_majorminor -lt 34 ] && libsubdir=gcc-lib
+
+# RPATH with just $lprefix since this is where lib goes
+# This *may* pose a problem during bootstrap and in that case a two stage bootstrap will be needed.
+# This forces all linked objects including libraries (ie. libstdc++.so) to have an RPATH
+export LD_OPTIONS="-R$lprefix/lib -R$lprefix/lib/\$ISALIST"
+
+# As documented ksh or better is needed
+export CONFIG_SHELL=/bin/ksh
+
+# Setup tool path
+export PATH=$srcdir/tools:$PATH
+
+# We set SED explicitly since the fixincludes machinery will
+# hardcode the path into an executable and we don't want the
+# toolpath from setup_tools() to be there
+export SED=${__gsed}
+
+# Creates tool path
+setup_tools()
+{
+    # Setup tools
+    # /usr/xpg4/bin/grep mishandles long lines
+    # use GNU grep instead (/usr/bin/grep would do, but GNU grepisms exists)
+    # For Java we need GNU diff and GNU find
+    # For C++/libstdc++ we need c++filt
+    # GNU sed is not a bad idea either
+    # Go needs objcopy and does not use the one that configure picks up
+    # Atleast some configure tests depend on objdump directly
+    ${__mkdir} -p $srcdir/tools
+    setdir $srcdir/tools
+    ${__ln_s} -f /usr/tgcware/bin/grep grep
+    ${__ln_s} -f /usr/tgcware/bin/diff diff
+    ${__ln_s} -f /usr/tgcware/bin/find find
+    ${__ln_s} -f /usr/tgcware/bin/sed sed
+    ${__ln_s} -f /usr/tgcware/bin/gc++filt c++filt
+    ${__ln_s} -f /usr/tgcware/bin/gobjcopy objcopy
+    ${__ln_s} -f /usr/tgcware/bin/gobjdump objdump
+    ${__ln_s} -f /usr/tgcware/bin/makeinfo makeinfo
+}
+
+# link_helper: redo hardlinks as symlinks
+# params: $1 = link target $2... = link names
+link_helper()
+{
+    local target=$1
+    local src
+    shift
+    cd ${stagedir}${prefix}/${_bindir}
+    for src in $@
+    do
+        if [ -r $src ]; then
+            echo "Replacing $src with symlink to $target"
+            ${__rm} -f $src && ${__ln} -sf ${prefix}/${_bindir}/$target $src
+        fi
+    done
+}
+
+# Turn all hardlinks in bin/ into symlinks
+redo_bin()
+{
+    link_helper g++ c++ ${build_arch}-${vendor}-solaris*-c++ ${build_arch}-${vendor}-solaris*-g++
+    link_helper gcc ${build_arch}-${vendor}-solaris*-gcc ${build_arch}-${vendor}-solaris*-gcc-$version
+    link_helper gcj ${build_arch}-${vendor}-solaris${gnu_os_ver}-gcj
+    link_helper gcjh ${build_arch}-${vendor}-solaris${gnu_os_ver}-gcjh
+    link_helper gfortran ${build_arch}-${vendor}-solaris*-gfortran
+    link_helper gccgo ${build_arch}-${vendor}-solaris*-gccgo
+    link_helper gcc-ar ${build_arch}-${vendor}-solaris*-gcc-ar
+    link_helper gcc-nm ${build_arch}-${vendor}-solaris*-gcc-nm
+    link_helper gcc-ranlib ${build_arch}-${vendor}-solaris*-gcc-ranlib
+}
+
+# Rearrange libraries to allow multiple gcc versions
+# $1 = archlibdir (subdir under lib where libraries go)
+# $2 = gccarchlibdir (subdir in lib/$libsubdir/<triplet>/<ver> where libs go)
+redo_libs_helper()
+{
+    local archlibdir=$1
+    local gccarchlibdir=$2
+
+    # For the default case
+    local backref="../../.."
+
+    if [ -n "$gccarchlibdir" ]; then
+	gccarchlibdir="/${gccarchlibdir}"
+	# Need one more backref when using gccarchlibdir
+	backref="../../../.."
+    fi
+    [ -n "$archlibdir" ] && archlibdir="/${archlibdir}"
+
+    mvif()
+    {
+	[ -r "$1" ] && mv "$1" "$2"
+    }
+
+    # Lots of rearranging to do to make multiple gcc versions coexist
+    # This is based on the rhel6 and Fedora specfiles
+    # First we need to move all gcc version specific files/libraries to the private versioned
+    # libdir
+    FULLPATH=${stagedir}${lprefix}/lib/$libsubdir/${build_arch}-${vendor}-solaris${gnu_os_ver}/${version}${gccarchlibdir}
+    setdir $FULLPATH
+    for f in libg2c.a libfrtbegin.a libgfortran.a libgfortran.spec libgomp.a \
+	    libgomp.spec libffi.a libiberty.a libstdc++.a libsupc++.a \
+	    libssp.a libssp_nonshared.a libobjc.a libquadmath.a libgo.a \
+	    libgobegin.a libitm.a libitm.spec libiberty.a libgfortranbegin.a \
+	    libatomic.a
+    do
+	mvif ${backref}${archlibdir}/$f $FULLPATH
+    done
+    # Relocate .so files
+    for f in g2c ffi gcc_s gcc_s_sparcv9 gfortran gomp objc ssp stdc++ \
+	    quadmath go itm atomic
+    do
+	if [ -L ${backref}${archlibdir}/lib$f.so ]; then
+	    # File exists and is a symlink, determine linktarget
+	    # The linktarget is the soname of the library
+	    linktarget=$(elfdump -d ${backref}${archlibdir}/lib$f.so | awk '/SONAME/ { print $4 }')
+	    # Remove the old symlink
+	    ${__rm} -f ${backref}${archlibdir}/lib$f.so
+	    # Create new .so file, note we link not to the full version
+	    # since we want to cheat and allow newer compilers to upgrade
+	    # them as long as the soversion is matching
+	    ${__ln_s} ${backref}${archlibdir}/$linktarget lib$f.so
+	fi
+    done
+
+    # For Ada
+    if [ -d $FULLPATH/adalib ]; then
+	cd $FULLPATH/adalib
+	for f in gnarl gnat
+	do
+	    if [ -L lib$f.so ]; then
+		# File exists and is a symlink, determine linktarget
+		# The linktarget is the soname of the library
+		linktarget=$(elfdump -d lib$f.so | awk '/SONAME/ { print $4 }')
+		# Relocate linktarget to main libdir
+		mvif $linktarget ${backref}/..${archlibdir}
+		# Remove the old symlink
+		${__rm} -f lib$f.so
+		# Create new symlinks to linktarget
+		${__ln_s} ${backref}/..${archlibdir}/$linktarget lib$f.so
+		${__ln_s} ${backref}/..${archlibdir}/$linktarget $linktarget
+	    fi
+	done
+
+	# Ada will not work without these symlinks
+	mkdir -p ${stagedir}${prefix}/lib/$libsubdir/${build_arch}-${vendor}-solaris${gnu_os_ver}/${version}${gccarchlibdir}
+	cd ${stagedir}${prefix}/lib/$libsubdir/${build_arch}-${vendor}-solaris${gnu_os_ver}/${version}${gccarchlibdir}
+	${__ln_s} ${backref}/../../lib/$libsubdir/${build_arch}-${vendor}-solaris${gnu_os_ver}/${version}${gccarchlibdir}/adainclude .
+	${__ln_s} ${backref}/../../lib/$libsubdir/${build_arch}-${vendor}-solaris${gnu_os_ver}/${version}${gccarchlibdir}/adalib .
+    fi
+}
+
+# Wrapper around redo_libs helper
+redo_libs()
+{
+    case $build_arch in
+	i386|sparc)
+	    redo_libs_helper "" ""
+	    ;;
+	*)
+	    echo "redo_libs: unknown $build_arch"
+	    ;;
+    esac
+}
+
+# vim: set sw=4 sts=4 et ft=sh : #
diff --git a/gcc/build.sh.gcc.cpu b/gcc/build.sh.gcc.cpu
new file mode 100644
index 0000000..70c3306
--- /dev/null
+++ b/gcc/build.sh.gcc.cpu
@@ -0,0 +1,28 @@
+# This defines the default cpu options to be passed on to
+# gcc and gmp configure scripts ($gcc_cpu and $gmp_host)
+#
+# The gcc bits depends on the definition of $abbrev_majorminor
+# usually provided by the gcc build.sh
+
+# In case this is used directly from build.sh (like with gmp)
+abbrev_majorminor=${abbrev_majorminor:-0}
+
+# Set default arch based on OS minimum cpu required
+case "${build_arch}-${gnu_os_ver}" in
+    i386-2.6)
+	gcc_arch=i386
+	gcc_cpu="--with-arch=$gcc_arch --with-tune=pentium"
+	gmp_host="i386-${vendor}-solaris${gnu_os_ver}"
+	;;
+    sparc-2.6)
+	gcc_arch=v7
+	gcc_cpu="--with-cpu=$gcc_arch"
+	gmp_host="sparc-${vendor}-solaris${gnu_os_ver}"
+	;;
+    *)
+	;;
+esac
+# For gcc < 3.4 and x86 there are no arch options
+[ $abbrev_majorminor -lt 34 -a "$vendor" = "pc" ] && gcc_cpu=
+
+# vim: set sw=4 sts=4 et ft=sh : #