jdk8-mips64-public/hotspot: src/cpu/mips/vm/jniTypes

src/cpu/mips/vm/jniTypes_mips.hpp@d885f8d65c58 (annotated)

src/cpu/mips/vm/jniTypes_mips.hpp

Tue, 26 Jul 2016 17:06:17 +0800

author: fujie
date: Tue, 26 Jul 2016 17:06:17 +0800
changeset 41: d885f8d65c58
parent 1: 2d8a650513c2
child 6880: 52ea28d233d2
permissions: -rw-r--r--

Add multiply word to GPR instruction (mul) in MIPS assembler.

 /*
  * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2015, 2016, Loongson Technology. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 #ifndef CPU_MIPS_VM_JNITYPES_MIPS_HPP
 #define CPU_MIPS_VM_JNITYPES_MIPS_HPP
 #include "memory/allocation.hpp"
 #include "oops/oop.hpp"
 #include "prims/jni.h"
 // This file holds platform-dependent routines used to write primitive jni
 // types to the array of arguments passed into JavaCalls::call
 class JNITypes : AllStatic {
   // These functions write a java primitive type (in native format)
   // to a java stack slot array to be passed as an argument to JavaCalls:calls.
   // I.e., they are functionally 'push' operations if they have a 'pos'
   // formal parameter.  Note that jlong's and jdouble's are written
   // _in reverse_ of the order in which they appear in the interpreter
   // stack.  This is because call stubs (see stubGenerator_sparc.cpp)
   // reverse the argument list constructed by JavaCallArguments (see
   // javaCalls.hpp).
 private:
 #ifndef AMD64
   // 32bit Helper routines.
   static inline void    put_int2r(jint *from, intptr_t *to)           { *(jint *)(to++) = from[1];
                                                                         *(jint *)(to  ) = from[0];
 									 }
   static inline void    put_int2r(jint *from, intptr_t *to, int& pos) { put_int2r(from, to + pos); pos += 2; }
 #endif // AMD64
 public:
 #ifdef _LP64
   // Jin: In MIPS64, the sizeof intptr_t is 8 bytes, and each unit in JavaCallArguments::_value_buffer[]
   //   is 8 bytes.
   // If we only write the low 4 bytes with (jint *), the high 4-bits will be left with uncertain values.
   // Then, in JavaCallArguments::parameters(), the whole 8 bytes of a T_INT parameter is loaded.
   // This error occurs in ReflectInvoke.java
   // The parameter of DD(int) should be 4 instead of 0x550000004.
   //
   // See: [runtime/javaCalls.hpp]
   static inline void    put_int(jint  from, intptr_t *to)           { *(intptr_t *)(to +   0  ) =  from; }
   static inline void    put_int(jint  from, intptr_t *to, int& pos) { *(intptr_t *)(to + pos++) =  from; }
   static inline void    put_int(jint *from, intptr_t *to, int& pos) { *(intptr_t *)(to + pos++) = *from; }
 #else
   // Ints are stored in native format in one JavaCallArgument slot at *to.
   static inline void    put_int(jint  from, intptr_t *to)           { *(jint *)(to +   0  ) =  from; }
   static inline void    put_int(jint  from, intptr_t *to, int& pos) { *(jint *)(to + pos++) =  from; }
   static inline void    put_int(jint *from, intptr_t *to, int& pos) { *(jint *)(to + pos++) = *from; }
 #endif
 #ifdef _LP64
   // Longs are stored in native format in one JavaCallArgument slot at
   // *(to).
   // In theory, *(to + 1) is an empty slot. But, for several Java2D testing programs (TestBorderLayout, SwingTest),
   //  *(to + 1) must contains a copy of the long value. Otherwise it will corrupts.
   static inline void put_long(jlong  from, intptr_t *to) {
     *(jlong*) (to + 1) = from;
     *(jlong*) (to) = from;
   }
   /* Jin: A long parameter occupies two slot.
    *   It must fit the layout rule in methodHandle.
    *
    *   See: [runtime/reflection.cpp] Reflection::invoke()
    *    assert(java_args.size_of_parameters() == method->size_of_parameters(), "just checking");
    */
   static inline void put_long(jlong  from, intptr_t *to, int& pos) {
     *(jlong*) (to + 1 + pos) = from;
     *(jlong*) (to + pos) = from;
     pos += 2;
   }
   static inline void put_long(jlong *from, intptr_t *to, int& pos) {
     *(jlong*) (to + 1 + pos) = *from;
     *(jlong*) (to + pos) = *from;
     pos += 2;
   }
 #else
   // Longs are stored in big-endian word format in two JavaCallArgument slots at *to.
   // The high half is in *to and the low half in *(to+1).
   static inline void    put_long(jlong  from, intptr_t *to)           { put_int2r((jint *)&from, to); }
   static inline void    put_long(jlong  from, intptr_t *to, int& pos) { put_int2r((jint *)&from, to, pos); }
   static inline void    put_long(jlong *from, intptr_t *to, int& pos) { put_int2r((jint *) from, to, pos); }
 #endif // AMD64
   // Oops are stored in native format in one JavaCallArgument slot at *to.
   static inline void    put_obj(oop  from, intptr_t *to)           { *(oop *)(to +   0  ) =  from; }
   static inline void    put_obj(oop  from, intptr_t *to, int& pos) { *(oop *)(to + pos++) =  from; }
   static inline void    put_obj(oop *from, intptr_t *to, int& pos) { *(oop *)(to + pos++) = *from; }
   // Floats are stored in native format in one JavaCallArgument slot at *to.
   static inline void    put_float(jfloat  from, intptr_t *to)           { *(jfloat *)(to +   0  ) =  from;  }
   static inline void    put_float(jfloat  from, intptr_t *to, int& pos) { *(jfloat *)(to + pos++) =  from; }
   static inline void    put_float(jfloat *from, intptr_t *to, int& pos) { *(jfloat *)(to + pos++) = *from; }
 #undef _JNI_SLOT_OFFSET
 #define _JNI_SLOT_OFFSET 0
 #ifdef _LP64
   // Longs are stored in native format in one JavaCallArgument slot at
   // *(to).
   // In theory, *(to + 1) is an empty slot. But, for several Java2D testing programs (TestBorderLayout, SwingTest),
   //  *(to + 1) must contains a copy of the long value. Otherwise it will corrupts.
   static inline void put_double(jdouble  from, intptr_t *to) {
     *(jdouble*) (to + 1) = from;
     *(jdouble*) (to) = from;
   }
   /* Jin: A long parameter occupies two slot.
    *   It must fit the layout rule in methodHandle.
    *
    *   See: [runtime/reflection.cpp] Reflection::invoke()
    *    assert(java_args.size_of_parameters() == method->size_of_parameters(), "just checking");
    */
   static inline void put_double(jdouble  from, intptr_t *to, int& pos) {
     *(jdouble*) (to + 1 + pos) = from;
     *(jdouble*) (to + pos) = from;
     pos += 2;
   }
   static inline void put_double(jdouble *from, intptr_t *to, int& pos) {
     *(jdouble*) (to + 1 + pos) = *from;
     *(jdouble*) (to + pos) = *from;
     pos += 2;
   }
 #else
   // Doubles are stored in big-endian word format in two JavaCallArgument slots at *to.
   // The high half is in *to and the low half in *(to+1).
   static inline void    put_double(jdouble  from, intptr_t *to)           { put_int2r((jint *)&from, to); }
   static inline void    put_double(jdouble  from, intptr_t *to, int& pos) { put_int2r((jint *)&from, to, pos); }
   static inline void    put_double(jdouble *from, intptr_t *to, int& pos) { put_int2r((jint *) from, to, pos); }
 #endif
   // The get_xxx routines, on the other hand, actually _do_ fetch
   // java primitive types from the interpreter stack.
   // No need to worry about alignment on Intel.
   static inline jint    get_int   (intptr_t *from) { return *(jint *)   from; }
   static inline jlong   get_long  (intptr_t *from) { return *(jlong *)  (from + _JNI_SLOT_OFFSET); }
   static inline oop     get_obj   (intptr_t *from) { return *(oop *)    from; }
   static inline jfloat  get_float (intptr_t *from) { return *(jfloat *) from; }
   static inline jdouble get_double(intptr_t *from) { return *(jdouble *)(from + _JNI_SLOT_OFFSET); }
 #undef _JNI_SLOT_OFFSET
 };
 #endif // CPU_MIPS_VM_JNITYPES_MIPS_HPP

Mercurial > jdk8-mips64-public > hotspot / annotate

src/cpu/mips/vm/jniTypes_mips.hpp@d885f8d65c58 (annotated)

src/cpu/mips/vm/jniTypes_mips.hpp