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hotspot/src/cpu/ppc/vm/globalDefinitions_ppc.hpp
author goetz
Wed, 18 Sep 2013 14:34:56 -0700
changeset 22834 3e2df6a4a28c
parent 22824 28258dd5cb2e
child 22868 7f6eb436873b
permissions -rw-r--r--
8024342: PPC64 (part 111): Support for C calling conventions that require 64-bit ints. Summary: Some platforms, as ppc and s390x/zArch require that 32-bit ints are passed as 64-bit values to C functions. This change adds support to adapt the signature and to issue proper casts to c2-compiled stubs. The functions are used in generate_native_wrapper(). Adapt signature used by the compiler as in PhaseIdealLoop::intrinsify_fill(). Reviewed-by: kvn
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/*
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 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
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 * Copyright 2012, 2013 SAP AG. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#ifndef CPU_PPC_VM_GLOBALDEFINITIONS_PPC_HPP













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#define CPU_PPC_VM_GLOBALDEFINITIONS_PPC_HPP













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// Size of PPC Instructions













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const int BytesPerInstWord = 4;













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const int StackAlignmentInBytes = 16;













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// Indicates whether the C calling conventions require that













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// 32-bit integer argument values are properly extended to 64 bits.













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// If set, SharedRuntime::c_calling_convention() must adapt













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// signatures accordingly.













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const bool CCallingConventionRequiresIntsAsLongs = true;








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#endif // CPU_PPC_VM_GLOBALDEFINITIONS_PPC_HPP















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