[PATCH] sparc64-linux multilibs take 2

[Jakub Jelinek <jakub at redhat dot com>]

On Wed, Dec 08, 1999 at 06:19:13PM -0800, Richard Henderson wrote:
> On Wed, Dec 08, 1999 at 10:25:15AM +0100, Jakub Jelinek wrote:
> > But IMHO it is not a bad idea to build alt libs on 64bit
> > Linux, because you need to build medany/medmid compatible libraries anyway
> > and with my genmultilib hacks those slower alt libraries will be suitable
> > for no-app-regs builds, so there is no additional overhead.
> 
> Ok.
> 
> > E.g. in glibc there are just a few routines which use app-regs and it should
> > not be hard to build by default a shared library with app-regs and static
> > library with -mno-app-regs.
> 
> Yep.

Ok, so what about this patch instead?
It will create 3 library versions, one in the main directory (64bit medlow)
plus 32/ and alt/ subdirectories, 32/ being -m32, alt/ being
-mno-app-regs -mcmodel=medany.

1999-12-09  Jakub Jelinek  <jakub@redhat.com>

	* config/sparc/linux64.h (TARGET_DEFAULT): Make -mapp-regs
	default on linux64 again.
	* config/sparc/t-linux64: Add mno-app-regs and non-medlow code
	models for multilibing.
	* genmultilib: Accept | as alternative separator within a set in
	MULTILIB_OPTIONS.

--- gcc/config/sparc/linux64.h.jj	Wed Sep 15 23:41:16 1999
+++ gcc/config/sparc/linux64.h	Wed Dec  1 09:17:50 1999
@@ -38,7 +38,7 @@ Boston, MA 02111-1307, USA.  */
 #undef TARGET_DEFAULT
 #define TARGET_DEFAULT \
   (MASK_V9 + MASK_PTR64 + MASK_64BIT /* + MASK_HARD_QUAD */ \
-   + MASK_STACK_BIAS + MASK_EPILOGUE + MASK_FPU)
+   + MASK_STACK_BIAS + MASK_APP_REGS + MASK_EPILOGUE + MASK_FPU)
 #endif
 
 /* Output at beginning of assembler file.  */
--- gcc/config/sparc/t-linux64.jj	Wed Dec 16 22:13:42 1998
+++ gcc/config/sparc/t-linux64	Wed Dec  1 09:17:50 1999
@@ -1,6 +1,7 @@
-MULTILIB_OPTIONS = m64/m32
-MULTILIB_DIRNAMES = 64 32
-MULTILIB_MATCHES =
+MULTILIB_OPTIONS = m64/m32 mno-app-regs|mcmodel=medany
+MULTILIB_DIRNAMES = 64 32 alt 
+MULTILIB_MATCHES = mcmodel?medany=mcmodel?medmid
+MULTILIB_EXCEPTIONS = *m32/*medany *m32/*mno-app-regs
 
 LIBGCC = stmp-multilib
 INSTALL_LIBGCC = install-multilib
--- gcc/genmultilib.jj	Wed Dec 16 21:56:22 1998
+++ gcc/genmultilib	Wed Dec  1 09:17:51 1999
@@ -1,6 +1,6 @@
 #!/bin/sh 
 # Generates multilib.h.
-#   Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
+#   Copyright (C) 1994, 1995, 1996, 1997, 1999 Free Software Foundation, Inc.
 
 #This file is part of GNU CC.
 
@@ -25,9 +25,14 @@
 
 # The first argument is a list of sets of options.  The elements in
 # the list are separated by spaces.  Within an element, the options
-# are separated by slashes.  No leading dash is used on the options.
-# Each option in a set is mutually incompatible with all other options
+# are separated by slashes or pipes.  No leading dash is used on the
+# options.
+# Each option in a set separated by slashes is mutually incompatible
+# with all other options
 # in the set.
+# Each option in a set separated by pipes will be used for the library
+# compilation and any of the options in the set will be sufficient
+# for it to be triggered.
 
 # The optional second argument is a list of subdirectory names.  If
 # the second argument is non-empty, there must be as many elements in
@@ -106,13 +111,23 @@ cat >tmpmultilib <<\EOF
 if [ "$#" != "0" ]; then
   first=$1
   shift
-  for opt in `echo $first | sed -e 's|/| |'g`; do
-    echo ${initial}${opt}/
-  done
-  ./tmpmultilib $@
-  for opt in `echo $first | sed -e 's|/| |'g`; do
-    initial="${initial}${opt}/" ./tmpmultilib $@
-  done
+  case "$first" in
+  *\|*)
+    all=${initial}`echo $first | sed -e 's_|_/_'g`
+    first=`echo $first | sed -e 's_|_ _'g`
+    echo ${all}/
+    initial="${initial}${all}/" ./tmpmultilib $@
+    ./tmpmultilib $first $@ | grep -v "^${all}"
+    ;;
+  *)
+    for opt in `echo $first | sed -e 's|/| |'g`; do
+      echo ${initial}${opt}/
+    done
+    ./tmpmultilib $@
+    for opt in `echo $first | sed -e 's|/| |'g`; do
+      initial="${initial}${opt}/" ./tmpmultilib $@
+    done
+  esac
 fi
 EOF
 chmod +x tmpmultilib
@@ -155,10 +170,17 @@ if [ -n "${dirnames}" ]; then
   set x ${dirnames}
   shift
   for set in ${options}; do
-    for opt in `echo ${set} | sed -e 's|/| |'g`; do
-      if [ "$1" != "${opt}" ]; then
-        todirnames="${todirnames} -e s|/${opt}/|/${1}/|g"
-      fi
+    for opts in `echo ${set} | sed -e 's|/| |'g`; do
+      patt="/"
+      for opt in `echo ${opts} | sed -e 's_|_ _'g`; do
+        if [ "$1" != "${opt}" ]; then
+          todirnames="${todirnames} -e s|/${opt}/|/${1}/|g"
+	  patt="${patt}${1}/"
+	  if [ "${patt}" != "/${1}/" ]; then
+	    todirnames="${todirnames} -e s|${patt}|/${1}/|g"
+          fi
+        fi
+      done
       shift
     done
   done
@@ -198,7 +220,7 @@ chmod +x tmpmultilib2
 # Start with the current directory, which includes only negations.
 optout=
 for set in ${options}; do
-  for opt in `echo ${set} | sed -e 's|/| |'g`; do
+  for opt in `echo ${set} | sed -e 's_[/|]_ _g'`; do
     optout="${optout} !${opt}"
   done
 done
@@ -223,7 +245,7 @@ for combo in ${combinations}; do
   # present, and negate each option that is not present.
   optout=
   for set in ${options}; do
-    setopts=`echo ${set} | sed -e 's|/| |g'`
+    setopts=`echo ${set} | sed -e 's_[/|]_ _g'`
     for opt in ${setopts}; do
       if expr "${combo} " : ".*/${opt}/.*" > /dev/null; then
 	optout="${optout} ${opt}"
@@ -254,7 +276,7 @@ for match in ${matches}; do
   echo "\"${r} ${l};\","
 done
 for set in ${options}; do
-  for opt in `echo ${set} | sed -e 's|/| |'g`; do
+  for opt in `echo ${set} | sed -e 's_[/|]_ _'g`; do
     echo "\"${opt} ${opt};\","
   done
 done


Cheers,
    Jakub
___________________________________________________________________
Jakub Jelinek | jakub@redhat.com | http://sunsite.mff.cuni.cz/~jj
Linux version 2.3.18 on a sparc64 machine (1343.49 BogoMips)
___________________________________________________________________