re PR libstdc++/45863 (FAIL: libstdc++-abi/abi_check)

	PR libstdc++/45863
	* scripts/extract_symvers: Restore revision 164879.
	Only use pvs on SunOS.

From-SVN: r165055

libstdc++-v3/ChangeLog

+2010-10-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	PR libstdc++/45863
+	* scripts/extract_symvers: Restore revision 164879.
+	Only use pvs on SunOS.
+
 2010-10-05  David Krauss  <potswa@mac.com>
 
 	PR libstdc++/45841

libstdc++-v3/scripts/extract_symvers

 #!/bin/sh
 
-# Copyright (C) 2002, 2003, 2009 Free Software Foundation, Inc.
+# Copyright (C) 2002, 2003, 2009, 2010 Free Software Foundation, Inc.
 #
 # This file is part of the GNU ISO C++ Library.  This library is free
 # software; you can redistribute it and/or modify it under the
@@ -26,14 +26,6 @@ fi
 lib=$1
 output=$2
 
-# GNU binutils, somewhere after version 2.11.2, requires -W/--wide to avoid
-# default line truncation.  -W is not supported and truncation did not occur
-# by default before that point.
-readelf="readelf --symbols"
-if readelf --help | grep -- --wide > /dev/null; then
-    readelf="$readelf --wide"
-fi
-
 # This avoids weird sorting problems later.
 LC_ALL=C
 export LC_ALL
@@ -42,16 +34,67 @@ export LANG
 
 tmp=extract.$$
 
-${readelf} ${lib} |\
-sed -e 's/ \[<other>: [A-Fa-f0-9]*\] //' -e '/\.dynsym/,/^$/p;d' |\
-egrep -v ' (LOCAL|UND) ' |\
-awk '{ if ($4 == "FUNC" || $4 == "NOTYPE")
+case `uname -s` in
+SunOS)
+  # Sun ld doesn't record symbol versions in .dynsym entries and they
+  # cannot easily be extracted from readelf --versions output, so use pvs
+  # instead.  Linux may have a completely different pvs from LVM2, so only
+  # do this on SunOS.
+  # Need to use nawk on Solaris 2 since Solaris 8/9 awk (oawk) cannot handle
+  # sub.
+  pvs -dsvo ${lib} | \
+  nawk '# Remove colon separator from version field, trailing semicolon.
+	{
+	  sub (/:$/, "", $3);
+	  sub (/;$/, "");
+	}
+	# Record base version.  The [BASE] field was only added in Solaris 11,
+	# so simply use the first record instead.
+	NR == 1 {
+	  basever = $3;
+	  next;
+	}
+	# Ignore version dependencies.
+	$4 ~ /\{.*\}/ {
+	  next;
+	}
+	NF == 4 {
+	  if ($3 == $4 || $3 == basever)
+	    # Emit versions or symbols bound to base versions as objects.
+	    printf "OBJECT:0:%s\n", $4;
+	  else
+	    # Everything else without a size field is a function.
+	    printf "FUNC:%s@@%s\n", $4, $3;
+	  next;
+	}
+	# Emit objects.
+	NF == 5 {
+	  # Strip parens from object size.
+	  sub (/^\(/, "", $5);
+	  sub (/\)$/, "", $5);
+	  printf "OBJECT:%s:%s@@%s\n", $5, $4, $3;
+	  next;
+	}' | sort | uniq > $tmp 2>&1
+  ;;
+*)
+  # GNU binutils, somewhere after version 2.11.2, requires -W/--wide to
+  # avoid default line truncation.  -W is not supported and truncation did
+  # not occur by default before that point.
+  readelf="readelf --symbols"
+  if readelf --help | grep -- --wide > /dev/null; then
+    readelf="$readelf --wide"
+  fi
+  ${readelf} ${lib} |\
+  sed -e 's/ \[<other>: [A-Fa-f0-9]*\] //' -e '/\.dynsym/,/^$/p;d' |\
+  egrep -v ' (LOCAL|UND) ' |\
+  awk '{ if ($4 == "FUNC" || $4 == "NOTYPE")
            printf "%s:%s\n", $4, $8;
          else if ($4 == "OBJECT" || $4 == "TLS")
            printf "%s:%s:%s\n", $4, $3, $8;
        }' | sort | uniq > $tmp 2>&1
 #        else printf "Huh?  What is %s?\n", $8;
-
+  ;;
+esac
 
 # I think we'll be doing some more with this file, but for now, dump.
 mv $tmp $output