| /* |
| * Copyright (c) 1998, 2017, Oracle and/or its affiliates. All rights reserved. |
| * Copyright (c) 2012, 2017 SAP SE. 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 <ctype.h> |
| #include <string.h> |
| #include <stdarg.h> |
| #include <stddef.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <wchar.h> |
| |
| #include <math.h> |
| #include <time.h> |
| #include <fcntl.h> |
| #include <dlfcn.h> |
| #include <pthread.h> |
| |
| #include <limits.h> |
| #include <errno.h> |
| |
| #include <stdint.h> |
| |
| // Use XLC compiler builtins instead of inline assembler |
| #define USE_XLC_BUILTINS |
| #ifdef USE_XLC_BUILTINS |
| #include <builtins.h> |
| #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 <dirent.h> |
| // (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; |
| |
| // 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) |
| |
| // AIX 5.3 has buggy __thread support. (see JDK-8176442). |
| #define USE_LIBRARY_BASED_TLS_ONLY 1 |
| |
| #ifndef USE_LIBRARY_BASED_TLS_ONLY |
| #define THREAD_LOCAL_DECL __thread |
| #endif |
| |
| // Inlining support |
| #define NOINLINE |
| #define ALWAYSINLINE inline __attribute__((always_inline)) |
| |
| #endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_XLC_HPP |