diff -r b83f7d608548 -r 666e6ce3976c src/share/vm/utilities/globalDefinitions_xlc.hpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/utilities/globalDefinitions_xlc.hpp Fri Sep 06 20:16:09 2013 +0200 @@ -0,0 +1,202 @@ +/* + * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved. + * Copyright 2012, 2013 SAP AG. 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 SHARE_VM_UTILITIES_GLOBALDEFINITIONS_XLC_HPP +#define SHARE_VM_UTILITIES_GLOBALDEFINITIONS_XLC_HPP + +#include "prims/jni.h" + +// This file holds compiler-dependent includes, +// globally used constants & types, class (forward) +// declarations and a few frequently used utility functions. + +#include +#include +#include +#include +#include +#include +#include + +#include +#ifndef FP_PZERO +// Linux doesn't have positive/negative zero +#define FP_PZERO FP_ZERO +#endif +#if (!defined fpclass) +#define fpclass fpclassify +#endif + +#include +#include +#include +#include + +#include +#include + +#include + +// Use XLC compiler builtins instead of inline assembler +#define USE_XLC_BUILTINS +#ifdef USE_XLC_BUILTINS +#include + #if __IBMCPP__ < 1000 + // the funtion prototype for __dcbtst(void *) is missing in XLC V8.0 + // I could compile a little test, where I provided the prototype. + // The generated code was correct there. This is the prototype: + // extern "builtin" void __dcbtst (void *); + // For now we don't make use of it when compiling with XLC V8.0 + #else + // __IBMCPP__ >= 1000 + // XLC V10 provides the prototype for __dcbtst (void *); + #define USE_XLC_PREFETCH_WRITE_BUILTIN + #endif +#endif // USE_XLC_BUILTINS + +// NULL vs NULL_WORD: +// On Linux NULL is defined as a special type '__null'. Assigning __null to +// integer variable will cause gcc warning. Use NULL_WORD in places where a +// pointer is stored as integer value. On some platforms, sizeof(intptr_t) > +// sizeof(void*), so here we want something which is integer type, but has the +// same size as a pointer. +#ifdef __GNUC__ + #error XLC and __GNUC__? +#else + #define NULL_WORD NULL +#endif + +// AIX also needs a 64 bit NULL to work as a null address pointer. +// Most system includes on AIX would define it as an int 0 if not already defined with one +// exception: /usr/include/dirent.h will unconditionally redefine NULL to int 0 again. +// In this case you need to copy the following defines to a position after #include +// (see jmv_aix.h). +#ifdef AIX + #ifdef _LP64 + #undef NULL + #define NULL 0L + #else + #ifndef NULL + #define NULL 0 + #endif + #endif +#endif // AIX + +// Compiler-specific primitive types +// All defs of int (uint16_6 etc) are defined in AIX' /usr/include/stdint.h + +// Additional Java basic types + +typedef uint8_t jubyte; +typedef uint16_t jushort; +typedef uint32_t juint; +typedef uint64_t julong; + +//---------------------------------------------------------------------------------------------------- +// Special (possibly not-portable) casts +// Cast floats into same-size integers and vice-versa w/o changing bit-pattern +// %%%%%% These seem like standard C++ to me--how about factoring them out? - Ungar + +inline jint jint_cast (jfloat x) { return *(jint* )&x; } +inline jlong jlong_cast (jdouble x) { return *(jlong* )&x; } + +inline jfloat jfloat_cast (jint x) { return *(jfloat* )&x; } +inline jdouble jdouble_cast(jlong x) { return *(jdouble*)&x; } + +//---------------------------------------------------------------------------------------------------- +// Constant for jlong (specifying an long long canstant is C++ compiler specific) + +// Build a 64bit integer constant +#define CONST64(x) (x ## LL) +#define UCONST64(x) (x ## ULL) + +const jlong min_jlong = CONST64(0x8000000000000000); +const jlong max_jlong = CONST64(0x7fffffffffffffff); + +//---------------------------------------------------------------------------------------------------- +// Debugging + +#define DEBUG_EXCEPTION ::abort(); + +extern "C" void breakpoint(); +#define BREAKPOINT ::breakpoint() + +// checking for nanness +#ifdef AIX +inline int g_isnan(float f) { return isnan(f); } +inline int g_isnan(double f) { return isnan(f); } +#else +#error "missing platform-specific definition here" +#endif + +// Checking for finiteness + +inline int g_isfinite(jfloat f) { return finite(f); } +inline int g_isfinite(jdouble f) { return finite(f); } + + +// Wide characters + +inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); } + + +// Portability macros +#define PRAGMA_INTERFACE #pragma interface +#define PRAGMA_IMPLEMENTATION #pragma implementation +#define VALUE_OBJ_CLASS_SPEC + +// Formatting. +#ifdef _LP64 +#define FORMAT64_MODIFIER "l" +#else // !_LP64 +#define FORMAT64_MODIFIER "ll" +#endif // _LP64 + +// Cannot use xlc's offsetof as implementation of hotspot's +// offset_of(), because xlc warns about applying offsetof() to non-POD +// object and xlc cannot compile the expression offsetof(DataLayout, +// _cells[index]) in DataLayout::cell_offset() . Therefore we define +// offset_of as it is defined for gcc. +#define offset_of(klass,field) (size_t)((intx)&(((klass*)16)->field) - 16) + +// Some constant sizes used throughout the AIX port +#define SIZE_1K ((uint64_t) 0x400ULL) +#define SIZE_4K ((uint64_t) 0x1000ULL) +#define SIZE_64K ((uint64_t) 0x10000ULL) +#define SIZE_1M ((uint64_t) 0x100000ULL) +#define SIZE_4M ((uint64_t) 0x400000ULL) +#define SIZE_8M ((uint64_t) 0x800000ULL) +#define SIZE_16M ((uint64_t) 0x1000000ULL) +#define SIZE_256M ((uint64_t) 0x10000000ULL) +#define SIZE_1G ((uint64_t) 0x40000000ULL) +#define SIZE_2G ((uint64_t) 0x80000000ULL) +#define SIZE_4G ((uint64_t) 0x100000000ULL) +#define SIZE_16G ((uint64_t) 0x400000000ULL) +#define SIZE_32G ((uint64_t) 0x800000000ULL) +#define SIZE_64G ((uint64_t) 0x1000000000ULL) +#define SIZE_1T ((uint64_t) 0x10000000000ULL) + + +#endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_XLC_HPP