config.gcc (sh-*-*): Add sysroot-suffix.h to tm_file.

2009-04-07  Andrew Stubbs  <ams@codesourcery.com>

	* config.gcc (sh-*-*): Add sysroot-suffix.h to tm_file.
	Add t-sysroot-suffix to tmake_file.
	* config/print-sysroot-suffix.sh: New file.
	* config/t-sysroot-suffix: New file.

From-SVN: r145650

4 files changed, 161 insertions, 0 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 000bc5f8f5e..7219666f64c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2009-04-07  Andrew Stubbs  <ams@codesourcery.com>
+
+	* config.gcc (sh-*-*): Add sysroot-suffix.h to tm_file.
+	Add t-sysroot-suffix to tmake_file.
+	* config/print-sysroot-suffix.sh: New file.
+	* config/t-sysroot-suffix: New file.
+
 2009-04-07  Ben Elliston  <bje@au.ibm.com>
 
 	* libgcc2.c (INFINITY): Use __builtin_huge_val, not __builtin_inf,
diff --git a/gcc/config.gcc b/gcc/config.gcc
index daddc2d328e..ff94f8f07d2 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -2139,6 +2139,8 @@ sh-*-symbianelf* | sh[12346l]*-*-symbianelf* | \
 	if test x${enable_incomplete_targets} = xyes ; then
 		tm_defines="$tm_defines SUPPORT_SH1=1 SUPPORT_SH2E=1 SUPPORT_SH4=1 SUPPORT_SH4_SINGLE=1 SUPPORT_SH2A=1 SUPPORT_SH2A_SINGLE=1 SUPPORT_SH5_32MEDIA=1 SUPPORT_SH5_32MEDIA_NOFPU=1 SUPPORT_SH5_64MEDIA=1 SUPPORT_SH5_64MEDIA_NOFPU=1"
 	fi
+	tm_file="$tm_file ./sysroot-suffix.h"
+	tmake_file="$tmake_file t-sysroot-suffix"
 	;;
 sh-*-rtems*)
 	tmake_file="sh/t-sh sh/t-elf t-rtems sh/t-rtems"
diff --git a/gcc/config/print-sysroot-suffix.sh b/gcc/config/print-sysroot-suffix.sh
new file mode 100644
index 00000000000..55579ad864b
--- /dev/null
+++ b/gcc/config/print-sysroot-suffix.sh
@@ -0,0 +1,145 @@
+#! /bin/sh
+# Script to generate SYSROOT_SUFFIX_SPEC equivalent to MULTILIB_OSDIRNAMES
+# Arguments are MULTILIB_OSDIRNAMES, MULTILIB_OPTIONS and MULTILIB_MATCHES.
+
+# Copyright (C) 2009 Free Software Foundation, Inc.
+
+# This file is part of GCC.
+
+# GCC is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free
+# Software Foundation; either version 3, or (at your option) any later
+# version.
+
+# GCC is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with GCC; see the file COPYING3.  If not see
+# <http://www.gnu.org/licenses/>.  
+
+# This shell script produces a header file fragment that defines
+# SYSROOT_SUFFIX_SPEC.  It assumes that the sysroots will have the same
+# structure and names used by the multilibs.
+
+# Invocation:
+#   print-sysroot-suffix.sh \
+#          MULTILIB_OSDIRNAMES \
+#          MULTILIB_OPTIONS \
+#          MULTILIB_MATCHES \
+#      > t-sysroot-suffix.h
+
+# The three options exactly correspond to the variables of the same
+# names defined in the tmake_file fragments.
+
+# Example:
+#   sh ./gcc/config/print-sysroot-suffix.sh "a=A" "a b/c/d" ""
+# =>
+#   #undef SYSROOT_SUFFIX_SPEC
+#   #define SYSROOT_SUFFIX_SPEC "" \
+#   "%{a:" \
+#     "%{b:A/b/;" \
+#     "c:A/c/;" \
+#     "d:A/d/;" \
+#     ":A/};" \
+#   ":}"
+
+# The script uses temporary subscripts in order to permit a recursive
+# algorithm without the use of functions.
+
+set -e
+
+dirnames="$1"
+options="$2"
+matches="$3"
+
+cat > print-sysroot-suffix3.sh <<\EOF
+#! /bin/sh
+# Print all the multilib matches for this option
+result="$1"
+EOF
+for x in $matches; do
+  l=`echo $x | sed -e 's/=.*$//' -e 's/?/=/g'`
+  r=`echo $x | sed -e 's/^.*=//' -e 's/?/=/g'`
+  echo "[ \"\$1\" = \"$l\" ] && result=\"\$result|$r\"" >> print-sysroot-suffix3.sh
+done
+echo 'echo $result' >> print-sysroot-suffix3.sh
+chmod +x print-sysroot-suffix3.sh
+
+cat > print-sysroot-suffix2.sh <<\EOF
+#! /bin/sh
+# Recursive script to enumerate all multilib combinations, match against
+# multilib directories and output a spec string of the result.
+# Will fold identical trees.
+
+padding="$1"
+optstring="$2"
+shift 2
+n="\" \\
+$padding\""
+if [ $# = 0 ]; then
+EOF
+
+pat=
+for x in $dirnames; do
+  p=`echo $x | sed -e 's,=!,/$=/,'`
+  pat="$pat -e 's=^//$p='"
+done
+echo '  optstring=`echo "/$optstring" | sed '"$pat\`" >> print-sysroot-suffix2.sh
+cat >> print-sysroot-suffix2.sh <<\EOF
+  case $optstring in
+  //*)
+    ;;
+  *)
+    echo "$optstring"
+    ;;
+  esac
+else
+  thisopt="$1"
+  shift
+  bit=
+  lastcond=
+  result=
+  for x in `echo "$thisopt" | sed -e 's,/, ,g'`; do
+    case $x in
+EOF
+for x in `echo "$options" | sed -e 's,/, ,g'`; do
+  match=`./print-sysroot-suffix3.sh "$x"`
+  echo "$x) optmatch=\"$match\" ;;" >> print-sysroot-suffix2.sh
+done
+cat >> print-sysroot-suffix2.sh <<\EOF
+    esac
+    bit=`"$0" "$padding  " "$optstring$x/" "$@"`
+    if [ -z "$lastopt" ]; then
+      lastopt="$optmatch"
+    else
+      if [ "$lastbit" = "$bit" ]; then
+	lastopt="$lastopt|$optmatch"
+      else
+	result="$result$lastopt:$lastbit;$n"
+	lastopt="$optmatch"
+      fi
+    fi
+    lastbit="$bit"
+  done
+  bit=`"$0" "$padding  " "$optstring" "$@"`
+  if [ "$bit" = "$lastbit" ]; then
+    if [ -z "$result" ]; then
+      echo "$bit"
+    else
+      echo "$n%{$result:$bit}"
+    fi
+  else
+    echo "$n%{$result$lastopt:$lastbit;$n:$bit}"
+  fi
+fi
+EOF
+
+chmod +x ./print-sysroot-suffix2.sh
+result=`./print-sysroot-suffix2.sh "" "/" $options`
+echo "#undef SYSROOT_SUFFIX_SPEC"
+echo "#define SYSROOT_SUFFIX_SPEC \"$result\""
+rm print-sysroot-suffix2.sh
+rm print-sysroot-suffix3.sh
diff --git a/gcc/config/t-sysroot-suffix b/gcc/config/t-sysroot-suffix
new file mode 100644
index 00000000000..08b4f949e3c
--- /dev/null
+++ b/gcc/config/t-sysroot-suffix
@@ -0,0 +1,7 @@
+# Generate SYSROOT_SUFFIX_SPEC from MULTILIB_OSDIRNAMES
+
+sysroot-suffix.h: $(srcdir)/config/print-sysroot-suffix.sh
+	$(SHELL) $(srcdir)/config/print-sysroot-suffix.sh \
+	  "$(MULTILIB_OSDIRNAMES)" "$(MULTILIB_OPTIONS)" \
+	  "$(MULTILIB_MATCHES)" > tmp-sysroot-suffix.h
+	mv tmp-sysroot-suffix.h $@