* config/ia64/libgcc-ia64.ver: Export _Unwind_GetBSP@@GCC_3.3.2.

	* config/ia64/unwind-ia64.c (_Unwind_GetBSP): New function.
	* unwind.h (_Unwind_GetBSP): New prototype.
	* libgcc-std.ver: Add empty GCC_3.3.2 version.
	* mkmap-symver.awk: For symbol versions with no exported symbols,
	don't put anything into version script, just change all symbol
	versions which inherit from it to inherit from its ancestor.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@71057 138bc75d-0d04-0410-961f-82ee72b054a4

gcc/ChangeLog

+2003-09-04  Jakub Jelinek  <jakub@redhat.com>
+
+	* config/ia64/libgcc-ia64.ver: Export _Unwind_GetBSP@@GCC_3.3.2.
+	* config/ia64/unwind-ia64.c (_Unwind_GetBSP): New function.
+	* unwind.h (_Unwind_GetBSP): New prototype.
+	* libgcc-std.ver: Add empty GCC_3.3.2 version.
+	* mkmap-symver.awk: For symbol versions with no exported symbols,
+	don't put anything into version script, just change all symbol
+	versions which inherit from it to inherit from its ancestor.
+
 2003-09-04  Eric Christopher  <echristo@redhat.com>
 
 	* config/mips/mips.c (mips_expand_prologue): Convert to

gcc/config/ia64/libgcc-ia64.ver

@@ -7,3 +7,6 @@ GCC_3.0 {
   __ia64_trampoline
   __ia64_backtrace
 }
+GCC_3.3.2 {
+  _Unwind_GetBSP
+}

gcc/config/ia64/unwind-ia64.c

@@ -1667,6 +1667,14 @@ _Unwind_GetCFA (struct _Unwind_Context *context)
   return (_Unwind_Ptr) context->psp;
 }
 
+/* Get the value of the Backing Store Pointer as saved in CONTEXT.  */
+
+_Unwind_Word
+_Unwind_GetBSP (struct _Unwind_Context *context)
+{
+  return (_Unwind_Ptr) context->bsp;
+}
+
 
 static _Unwind_Reason_Code
 uw_frame_state_for (struct _Unwind_Context *context, _Unwind_FrameState *fs)

gcc/libgcc-std.ver

@@ -191,7 +191,11 @@ GCC_3.3.1 {
   __gcc_personality_v0
 }
 
-%inherit GCC_3.4 GCC_3.3.1
+%inherit GCC_3.3.2 GCC_3.3.1
+GCC_3.3.2 {
+}
+
+%inherit GCC_3.4 GCC_3.3.2
 GCC_3.4 {
   # bit scanning and counting built-ins
   __clzsi2

gcc/mkmap-symver.awk

@@ -95,22 +95,28 @@ function output(lib) {
   if (inherit[lib])
     output(inherit[lib]);
 
-  printf("%s {\n", lib);
-  sawglobal = 0;
+  empty=1
   for (sym in ver)
     if ((ver[sym] == lib) && (sym in def))
       {
-	if (!sawglobal)
+	if (empty)
 	  {
+	    printf("%s {\n", lib);
 	    printf("  global:\n");
-	    sawglobal = 1;
+	    empty = 0;
 	  }
 	printf("\t%s;\n", sym);
 	if (dotsyms)
 	  printf("\t.%s;\n", sym);
       }
 
-  if (inherit[lib])
+  if (empty)
+    {
+      for (l in libs)
+	if (inherit[l] == lib)
+	  inherit[l] = inherit[lib];
+    }
+  else if (inherit[lib])
     printf("} %s;\n", inherit[lib]);
   else
     printf ("\n  local:\n\t*;\n};\n");

gcc/unwind.h

@@ -210,6 +210,9 @@ _Unwind_GetTextRelBase (struct _Unwind_Context *_C __attribute__ ((__unused__)))
   abort ();
   return 0;
 }
+
+/* @@@ Retrieve the Backing Store Pointer of the given context.  */
+extern _Unwind_Word _Unwind_GetBSP (struct _Unwind_Context *);
 #else
 extern _Unwind_Ptr _Unwind_GetDataRelBase (struct _Unwind_Context *);
 extern _Unwind_Ptr _Unwind_GetTextRelBase (struct _Unwind_Context *);