Revert the pvs change.

2010-10-02  H.J. Lu  <hongjiu.lu@intel.com>

	PR libstdc++/45863
	* scripts/extract_symvers: Revert the pvs change.

From-SVN: r164913

libstdc++-v3/ChangeLog

+2010-10-02  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR libstdc++/45863
+	* scripts/extract_symvers: Revert the pvs change.
+
 2010-10-01  Benjamin Kosnik  <bkoz@redhat.com>
 
 	* scripts/extract_symvers: Add support for tracking TLS symbols.

libstdc++-v3/scripts/extract_symvers

@@ -26,14 +26,6 @@ fi
 lib=$1
 output=$2
 
-# Sun ld doesn't record symbol versions in .dynsym entries and they cannot
-# easily be extracted from readelf --versions output, so use pvs instead.
-if type pvs 2>&1 | grep 'not found' > /dev/null; then
-    :
-else
-    pvs="pvs -dsvo"
-fi
-
 # 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.
@@ -50,53 +42,15 @@ export LANG
 
 tmp=extract.$$
 
-# Prefer pvs if found.  Need to use nawk on Solaris 2 since Solaris 8/9 awk
-# (oawk) cannot handle sub.
-if [ -n ${pvs} ]; then
-    ${pvs} ${lib} | \
-    nawk '# Remove colon separator from version field, trailing semicolon.
-	 {
-	   sub (/:$/, "", $3);
-	   sub (/;$/, "");
-	 }
-	 # 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
-else
-    ${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", $8;
-fi
+${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;
 
 
 # I think we'll be doing some more with this file, but for now, dump.