1 /*
   2  * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright (c) 2016 SAP SE. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #ifndef CPU_S390_VM_GLOBALDEFINITIONS_S390_HPP
  27 #define CPU_S390_VM_GLOBALDEFINITIONS_S390_HPP
  28 
  29 #ifdef CC_INTERP
  30 #error "CC_INTERP is not supported on z/Architecture."
  31 #endif
  32 
  33 // Convenience macro that produces a string literal with the filename
  34 // and linenumber of the location where the macro was used.
  35 #ifndef FILE_AND_LINE
  36 #define FILE_AND_LINE __FILE__ ":" XSTR(__LINE__)
  37 #endif
  38 
  39 #define ShortenBranches true
  40 
  41 const int StackAlignmentInBytes = 16;
  42 
  43 #define SUPPORTS_NATIVE_CX8
  44 
  45 // Indicates whether the C calling conventions require that
  46 // 32-bit integer argument values are extended to 64 bits.
  47 // This is the case on z/Architecture.
  48 const bool CCallingConventionRequiresIntsAsLongs = true;
  49 
  50 // Contended Locking reorder and cache line bucket.
  51 // This setting should be kept compatible with vm_version_s390.cpp.
  52 // The expected size in bytes of a cache line, used to pad data structures.
  53 #define DEFAULT_CACHE_LINE_SIZE 256
  54 
  55 #endif // CPU_S390_VM_GLOBALDEFINITIONS_S390_HPP