Mercurial > hg > graal-compiler
view src/cpu/x86/vm/jniTypes_x86.hpp @ 609:ea20d7ce26b0
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
Summary: Check for NULL return values from jvmti_thread_state() and state_for() and return a JVM TI error code as appropriate.
Reviewed-by: coleenp, swamyv
author | dcubed |
---|---|
date | Mon, 02 Mar 2009 14:00:23 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 1998-2003 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ // 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: // 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; } #ifdef AMD64 // 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; } #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 #ifdef AMD64 #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; } #else #define _JNI_SLOT_OFFSET 0 // 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 // AMD64 // 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 };