1 /*
   2  * Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef CPU_ARM_VM_JNITYPES_ARM_HPP
  26 #define CPU_ARM_VM_JNITYPES_ARM_HPP
  27 

  28 #include "memory/allocation.hpp"
  29 #include "oops/oop.hpp"
  30 #include "prims/jni.h"
  31 
  32 // This file holds platform-dependent routines used to write primitive jni
  33 // types to the array of arguments passed into JavaCalls::call
  34 
  35 class JNITypes : AllStatic {
  36   // These functions write a java primitive type (in native format)
  37   // to a java stack slot array to be passed as an argument to JavaCalls:calls.
  38   // I.e., they are functionally 'push' operations if they have a 'pos'
  39   // formal parameter.  Note that jlong's and jdouble's are written
  40   // _in reverse_ of the order in which they appear in the interpreter
  41   // stack.  This is because call stubs (see stubGenerator_arm.cpp)
  42   // reverse the argument list constructed by JavaCallArguments (see
  43   // javaCalls.hpp).
  44 
  45 private:
  46 
  47 #ifndef AARCH64
  48   // 32bit Helper routines.
  49   static inline void put_int2r(jint *from, intptr_t *to)           { *(jint *)(to++) = from[1];
  50                                                                         *(jint *)(to  ) = from[0]; }

   1 /*
   2  * Copyright (c) 2008, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef CPU_ARM_VM_JNITYPES_ARM_HPP
  26 #define CPU_ARM_VM_JNITYPES_ARM_HPP
  27 
  28 #include "jni.h"
  29 #include "memory/allocation.hpp"
  30 #include "oops/oop.hpp"

  31 
  32 // This file holds platform-dependent routines used to write primitive jni
  33 // types to the array of arguments passed into JavaCalls::call
  34 
  35 class JNITypes : AllStatic {
  36   // These functions write a java primitive type (in native format)
  37   // to a java stack slot array to be passed as an argument to JavaCalls:calls.
  38   // I.e., they are functionally 'push' operations if they have a 'pos'
  39   // formal parameter.  Note that jlong's and jdouble's are written
  40   // _in reverse_ of the order in which they appear in the interpreter
  41   // stack.  This is because call stubs (see stubGenerator_arm.cpp)
  42   // reverse the argument list constructed by JavaCallArguments (see
  43   // javaCalls.hpp).
  44 
  45 private:
  46 
  47 #ifndef AARCH64
  48   // 32bit Helper routines.
  49   static inline void put_int2r(jint *from, intptr_t *to)           { *(jint *)(to++) = from[1];
  50                                                                         *(jint *)(to  ) = from[0]; }