globalDefinitions_sparcWorks.hpp revision 11743:ae67f85487cb
1/* 2 * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25#ifndef SHARE_VM_UTILITIES_GLOBALDEFINITIONS_SPARCWORKS_HPP 26#define SHARE_VM_UTILITIES_GLOBALDEFINITIONS_SPARCWORKS_HPP 27 28#include "prims/jni.h" 29 30// This file holds compiler-dependent includes, 31// globally used constants & types, class (forward) 32// declarations and a few frequently used utility functions. 33 34 35# include <ctype.h> 36# include <string.h> 37# include <strings.h> // for bsd'isms 38# include <stdarg.h> 39# include <stddef.h> // for offsetof 40# include <stdio.h> 41# include <stdlib.h> 42# include <wchar.h> 43# include <stdarg.h> 44#ifdef SOLARIS 45# include <ieeefp.h> 46#endif 47# include <math.h> 48# include <time.h> 49# include <fcntl.h> 50# include <dlfcn.h> 51# include <pthread.h> 52#ifdef SOLARIS 53# include <thread.h> 54#endif 55# include <limits.h> 56# include <errno.h> 57#ifdef SOLARIS 58# include <sys/trap.h> 59# include <sys/regset.h> 60# include <sys/procset.h> 61# include <ucontext.h> 62# include <setjmp.h> 63#endif 64# ifdef SOLARIS_MUTATOR_LIBTHREAD 65# include <sys/procfs.h> 66# endif 67 68#include <inttypes.h> 69 70// Solaris 8 doesn't provide definitions of these 71#ifdef SOLARIS 72#ifndef PRIdPTR 73#if defined(_LP64) 74#define PRIdPTR "ld" 75#define PRIuPTR "lu" 76#define PRIxPTR "lx" 77#else 78#define PRIdPTR "d" 79#define PRIuPTR "u" 80#define PRIxPTR "x" 81#endif 82#endif 83#endif 84 85#ifdef LINUX 86# include <signal.h> 87# include <ucontext.h> 88# include <sys/time.h> 89#endif 90 91 92// 4810578: varargs unsafe on 32-bit integer/64-bit pointer architectures 93// When __cplusplus is defined, NULL is defined as 0 (32-bit constant) in 94// system header files. On 32-bit architectures, there is no problem. 95// On 64-bit architectures, defining NULL as a 32-bit constant can cause 96// problems with varargs functions: C++ integral promotion rules say for 97// varargs, we pass the argument 0 as an int. So, if NULL was passed to a 98// varargs function it will remain 32-bits. Depending on the calling 99// convention of the machine, if the argument is passed on the stack then 100// only 32-bits of the "NULL" pointer may be initialized to zero. The 101// other 32-bits will be garbage. If the varargs function is expecting a 102// pointer when it extracts the argument, then we have a problem. 103// 104// Solution: For 64-bit architectures, redefine NULL as 64-bit constant 0. 105// 106// Note: this fix doesn't work well on Linux because NULL will be overwritten 107// whenever a system header file is included. Linux handles NULL correctly 108// through a special type '__null'. 109#ifdef SOLARIS 110#ifdef _LP64 111#undef NULL 112#define NULL 0L 113#else 114#ifndef NULL 115#define NULL 0 116#endif 117#endif 118#endif 119 120// NULL vs NULL_WORD: 121// On Linux NULL is defined as a special type '__null'. Assigning __null to 122// integer variable will cause gcc warning. Use NULL_WORD in places where a 123// pointer is stored as integer value. On some platforms, sizeof(intptr_t) > 124// sizeof(void*), so here we want something which is integer type, but has the 125// same size as a pointer. 126#ifdef LINUX 127 #ifdef _LP64 128 #define NULL_WORD 0L 129 #else 130 // Cast 0 to intptr_t rather than int32_t since they are not the same type 131 // on some platforms. 132 #define NULL_WORD ((intptr_t)0) 133 #endif 134#else 135 #define NULL_WORD NULL 136#endif 137 138#ifndef LINUX 139// Compiler-specific primitive types 140typedef unsigned short uint16_t; 141#ifndef _UINT32_T 142#define _UINT32_T 143typedef unsigned int uint32_t; 144#endif 145#if !defined(_SYS_INT_TYPES_H) 146#ifndef _UINT64_T 147#define _UINT64_T 148typedef unsigned long long uint64_t; 149#endif 150// %%%% how to access definition of intptr_t portably in 5.5 onward? 151typedef int intptr_t; 152typedef unsigned int uintptr_t; 153// If this gets an error, figure out a symbol XXX that implies the 154// prior definition of intptr_t, and add "&& !defined(XXX)" above. 155#endif 156#endif 157 158// On solaris 8, UINTPTR_MAX is defined as empty. 159// Everywhere else it's an actual value. 160#if UINTPTR_MAX - 1 == -1 161#undef UINTPTR_MAX 162#ifdef _LP64 163#define UINTPTR_MAX UINT64_MAX 164#else 165#define UINTPTR_MAX UINT32_MAX 166#endif /* ifdef _LP64 */ 167#endif 168 169// Additional Java basic types 170 171typedef unsigned char jubyte; 172typedef unsigned short jushort; 173typedef unsigned int juint; 174typedef unsigned long long julong; 175 176 177//---------------------------------------------------------------------------------------------------- 178// Constant for jlong (specifying a long long constant is C++ compiler specific) 179 180// Build a 64bit integer constant 181#define CONST64(x) (x ## LL) 182#define UCONST64(x) (x ## ULL) 183 184const jlong min_jlong = CONST64(0x8000000000000000); 185const jlong max_jlong = CONST64(0x7fffffffffffffff); 186 187#ifdef SOLARIS 188//---------------------------------------------------------------------------------------------------- 189// ANSI C++ fixes 190// NOTE:In the ANSI committee's continuing attempt to make each version 191// of C++ incompatible with the previous version, you can no longer cast 192// pointers to functions without specifying linkage unless you want to get 193// warnings. 194// 195// This also means that pointers to functions can no longer be "hidden" 196// in opaque types like void * because at the invokation point warnings 197// will be generated. While this makes perfect sense from a type safety 198// point of view it causes a lot of warnings on old code using C header 199// files. Here are some typedefs to make the job of silencing warnings 200// a bit easier. 201// 202// The final kick in the teeth is that you can only have extern "C" linkage 203// specified at file scope. So these typedefs are here rather than in the 204// .hpp for the class (os:Solaris usually) that needs them. 205 206extern "C" { 207 typedef int (*int_fnP_thread_t_iP_uP_stack_tP_gregset_t)(thread_t, int*, unsigned *, stack_t*, gregset_t); 208 typedef int (*int_fnP_thread_t_i_gregset_t)(thread_t, int, gregset_t); 209 typedef int (*int_fnP_thread_t_i)(thread_t, int); 210 typedef int (*int_fnP_thread_t)(thread_t); 211 212 typedef int (*int_fnP_cond_tP_mutex_tP_timestruc_tP)(cond_t *cv, mutex_t *mx, timestruc_t *abst); 213 typedef int (*int_fnP_cond_tP_mutex_tP)(cond_t *cv, mutex_t *mx); 214 215 // typedef for missing API in libc 216 typedef int (*int_fnP_mutex_tP_i_vP)(mutex_t *, int, void *); 217 typedef int (*int_fnP_mutex_tP)(mutex_t *); 218 typedef int (*int_fnP_cond_tP_i_vP)(cond_t *cv, int scope, void *arg); 219 typedef int (*int_fnP_cond_tP)(cond_t *cv); 220}; 221#endif 222 223//---------------------------------------------------------------------------------------------------- 224// Debugging 225 226#define DEBUG_EXCEPTION ::abort(); 227 228extern "C" void breakpoint(); 229#define BREAKPOINT ::breakpoint() 230 231// checking for nanness 232#ifdef SOLARIS 233#ifdef SPARC 234inline int g_isnan(float f) { return isnanf(f); } 235#else 236// isnanf() broken on Intel Solaris use isnand() 237inline int g_isnan(float f) { return isnand(f); } 238#endif 239 240inline int g_isnan(double f) { return isnand(f); } 241#elif LINUX 242inline int g_isnan(float f) { return isnanf(f); } 243inline int g_isnan(double f) { return isnan(f); } 244#else 245#error "missing platform-specific definition here" 246#endif 247 248// Checking for finiteness 249 250inline int g_isfinite(jfloat f) { return finite(f); } 251inline int g_isfinite(jdouble f) { return finite(f); } 252 253 254// Wide characters 255 256inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); } 257 258// Portability macros 259#define PRAGMA_INTERFACE 260#define PRAGMA_IMPLEMENTATION 261#define PRAGMA_IMPLEMENTATION_(arg) 262#define VALUE_OBJ_CLASS_SPEC : public _ValueObj 263 264// Formatting. 265#ifdef _LP64 266#define FORMAT64_MODIFIER "l" 267#else // !_LP64 268#define FORMAT64_MODIFIER "ll" 269#endif // _LP64 270 271#define offset_of(klass,field) offsetof(klass,field) 272 273#ifndef USE_LIBRARY_BASED_TLS_ONLY 274#define THREAD_LOCAL_DECL __thread 275#endif 276 277// Inlining support 278#define NOINLINE 279#define ALWAYSINLINE inline __attribute__((always_inline)) 280 281#endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_SPARCWORKS_HPP 282