Merge GDB 7.5.1

gdb/rs6000-aix-tdep.c

 /* Native support code for PPC AIX, for GDB the GNU debugger.
 
    Copyright (C) 2006-2012 Free Software Foundation, Inc.
 
    Free Software Foundation, Inc.
 
    This file is part of GDB.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ skipping 406 matching lines @@
     {
       CORE_ADDR tocvalue = (*rs6000_find_toc_address_hook) (func_addr);
       regcache_raw_write_signed (regcache, tdep->ppc_toc_regnum, tocvalue);
     }
 
   target_store_registers (regcache, -1);
   return sp;
 }
 
 static enum return_value_convention
-rs6000_return_value (struct gdbarch *gdbarch, struct type *func_type,
+rs6000_return_value (struct gdbarch *gdbarch, struct value *function,
                      struct type *valtype, struct regcache *regcache,
                      gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
-  gdb_byte buf[8];
 
   /* The calling convention this function implements assumes the
      processor has floating-point registers.  We shouldn't be using it
      on PowerPC variants that lack them.  */
   gdb_assert (ppc_floating_point_unit_p (gdbarch));
 
   /* AltiVec extension: Functions that declare a vector data type as a
      return value place that return value in VR2.  */
   if (TYPE_CODE (valtype) == TYPE_CODE_ARRAY && TYPE_VECTOR (valtype)
       && TYPE_LENGTH (valtype) == 16)
@@ skipping 132 matching lines @@
   s = find_pc_section (addr);
 
   /* Normally, functions live inside a section that is executable.
      So, if ADDR points to a non-executable section, then treat it
      as a function descriptor and return the target address iff
      the target address itself points to a section that is executable.  */
   if (s && (s->the_bfd_section->flags & SEC_CODE) == 0)
     {
       CORE_ADDR pc = 0;
       struct obj_section *pc_section;
-      struct gdb_exception e;
+      volatile struct gdb_exception e;
 
       TRY_CATCH (e, RETURN_MASK_ERROR)
         {
           pc = read_memory_unsigned_integer (addr, tdep->wordsize, byte_order);
         }
       if (e.reason < 0)
         {
           /* An error occured during reading.  Probably a memory error
              due to the section not being loaded yet.  This address
              cannot be a function descriptor.  */
@@ skipping 188 matching lines @@
   gdbarch_register_osabi_sniffer (bfd_arch_powerpc,
                                   bfd_target_xcoff_flavour,
                                   rs6000_aix_osabi_sniffer);
 
   gdbarch_register_osabi (bfd_arch_rs6000, 0, GDB_OSABI_AIX,
                           rs6000_aix_init_osabi);
   gdbarch_register_osabi (bfd_arch_powerpc, 0, GDB_OSABI_AIX,
                           rs6000_aix_init_osabi);
 }