/* * Copyright (c) 1998, 2017, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2014, Red Hat Inc. All rights reserved. * Copyright (c) 2015, Linaro Ltd. 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_AARCH32_VM_JNITYPES_AARCH32_HPP #define CPU_AARCH32_VM_JNITYPES_AARCH32_HPP #include "jni.h" #include "memory/allocation.hpp" #include "oops/oop.hpp" // 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). public: // 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; } // Longs are stored in native format in one JavaCallArgument slot at // *(to+1). /*static inline void put_long(jlong from, intptr_t *to) { *(jlong*) (to + 1) = from; } static inline void put_long(jlong from, intptr_t *to, int& pos) { *(jlong*) (to + 1 + pos) = from; pos += 2; } static inline void put_long(jlong *from, intptr_t *to, int& pos) { *(jlong*) (to + 1 + pos) = *from; pos += 2; }*/ static inline void put_long(jlong from, intptr_t *to) { uint64_t val = from; uint64_t mask = (1LL << 32) - 1; val = (val >> 32) | ((val & mask) << 32); *(jlong*)to = (jlong)val; } static inline void put_long(jlong from, intptr_t *to, int& pos) { uint64_t val = from; uint64_t mask = (1LL << 32) - 1; val = (val >> 32) | ((val & mask) << 32); *(jlong*) (to + pos) = (jlong)val; pos += 2; } static inline void put_long(jlong *from, intptr_t *to, int& pos) { uint64_t val = *from; uint64_t mask = (1LL << 32) - 1; val = (val >> 32) | ((val & mask) << 32); *(jlong*) (to + pos) = (jlong)val; pos += 2; } // 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 1 // Doubles are stored in native word format in one JavaCallArgument // slot at *(to+1). /*static inline void put_double(jdouble from, intptr_t *to) { *(jdouble*) (to + 1) = from; } static inline void put_double(jdouble from, intptr_t *to, int& pos) { *(jdouble*) (to + 1 + pos) = from; pos += 2; } static inline void put_double(jdouble *from, intptr_t *to, int& pos) { *(jdouble*) (to + 1 + pos) = *from; pos += 2; }*/ static inline void put_double(jdouble from, intptr_t *to) { uint64_t val = *(uint64_t*)&from; uint64_t mask = (1LL << 32) - 1; val = (val >> 32) | ((val & mask) << 32); *(uint64_t*)to = val; } static inline void put_double(jdouble from, intptr_t *to, int& pos) { uint64_t val = *(uint64_t*)&from; uint64_t mask = (1LL << 32) - 1; val = (val >> 32) | ((val & mask) << 32); *(uint64_t*) (to + pos) = val; pos += 2; } static inline void put_double(jdouble *from, intptr_t *to, int& pos) { uint64_t val = *(uint64_t*)from; uint64_t mask = (1LL << 32) - 1; val = (val >> 32) | ((val & mask) << 32); *(uint64_t*) (to + pos) = val; pos += 2; } // 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_AARCH32_VM_JNITYPES_AARCH32_HPP