globalDefinitions_sparcWorks.hpp revision 8881:73e6afceb02e
1/* 2 * Copyright (c) 1997, 2015, 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#define __USE_LEGACY_PROTOTYPES__ 37# include <dirent.h> 38#undef __USE_LEGACY_PROTOTYPES__ 39# include <string.h> 40# include <strings.h> // for bsd'isms 41# include <stdarg.h> 42# include <stddef.h> // for offsetof 43# include <stdio.h> 44# include <stdlib.h> 45# include <wchar.h> 46# include <stdarg.h> 47#ifdef SOLARIS 48# include <ieeefp.h> 49#endif 50# include <math.h> 51# include <time.h> 52# include <fcntl.h> 53# include <dlfcn.h> 54# include <pthread.h> 55#ifdef SOLARIS 56# include <thread.h> 57#endif 58# include <limits.h> 59# include <errno.h> 60#ifdef SOLARIS 61# include <sys/trap.h> 62# include <sys/regset.h> 63# include <sys/procset.h> 64# include <ucontext.h> 65# include <setjmp.h> 66#endif 67# ifdef SOLARIS_MUTATOR_LIBTHREAD 68# include <sys/procfs.h> 69# endif 70 71#include <inttypes.h> 72 73// Solaris 8 doesn't provide definitions of these 74#ifdef SOLARIS 75#ifndef PRIdPTR 76#if defined(_LP64) 77#define PRIdPTR "ld" 78#define PRIuPTR "lu" 79#define PRIxPTR "lx" 80#else 81#define PRIdPTR "d" 82#define PRIuPTR "u" 83#define PRIxPTR "x" 84#endif 85#endif 86#endif 87 88#ifdef LINUX 89# include <signal.h> 90# include <ucontext.h> 91# include <sys/time.h> 92#endif 93 94 95// 4810578: varargs unsafe on 32-bit integer/64-bit pointer architectures 96// When __cplusplus is defined, NULL is defined as 0 (32-bit constant) in 97// system header files. On 32-bit architectures, there is no problem. 98// On 64-bit architectures, defining NULL as a 32-bit constant can cause 99// problems with varargs functions: C++ integral promotion rules say for 100// varargs, we pass the argument 0 as an int. So, if NULL was passed to a 101// varargs function it will remain 32-bits. Depending on the calling 102// convention of the machine, if the argument is passed on the stack then 103// only 32-bits of the "NULL" pointer may be initialized to zero. The 104// other 32-bits will be garbage. If the varargs function is expecting a 105// pointer when it extracts the argument, then we have a problem. 106// 107// Solution: For 64-bit architectures, redefine NULL as 64-bit constant 0. 108// 109// Note: this fix doesn't work well on Linux because NULL will be overwritten 110// whenever a system header file is included. Linux handles NULL correctly 111// through a special type '__null'. 112#ifdef SOLARIS 113#ifdef _LP64 114#undef NULL 115#define NULL 0L 116#else 117#ifndef NULL 118#define NULL 0 119#endif 120#endif 121#endif 122 123// NULL vs NULL_WORD: 124// On Linux NULL is defined as a special type '__null'. Assigning __null to 125// integer variable will cause gcc warning. Use NULL_WORD in places where a 126// pointer is stored as integer value. On some platforms, sizeof(intptr_t) > 127// sizeof(void*), so here we want something which is integer type, but has the 128// same size as a pointer. 129#ifdef LINUX 130 #ifdef _LP64 131 #define NULL_WORD 0L 132 #else 133 // Cast 0 to intptr_t rather than int32_t since they are not the same type 134 // on some platforms. 135 #define NULL_WORD ((intptr_t)0) 136 #endif 137#else 138 #define NULL_WORD NULL 139#endif 140 141#ifndef LINUX 142// Compiler-specific primitive types 143typedef unsigned short uint16_t; 144#ifndef _UINT32_T 145#define _UINT32_T 146typedef unsigned int uint32_t; 147#endif 148#if !defined(_SYS_INT_TYPES_H) 149#ifndef _UINT64_T 150#define _UINT64_T 151typedef unsigned long long uint64_t; 152#endif 153// %%%% how to access definition of intptr_t portably in 5.5 onward? 154typedef int intptr_t; 155typedef unsigned int uintptr_t; 156// If this gets an error, figure out a symbol XXX that implies the 157// prior definition of intptr_t, and add "&& !defined(XXX)" above. 158#endif 159#endif 160 161// On solaris 8, UINTPTR_MAX is defined as empty. 162// Everywhere else it's an actual value. 163#if UINTPTR_MAX - 1 == -1 164#undef UINTPTR_MAX 165#ifdef _LP64 166#define UINTPTR_MAX UINT64_MAX 167#else 168#define UINTPTR_MAX UINT32_MAX 169#endif /* ifdef _LP64 */ 170#endif 171 172// Additional Java basic types 173 174typedef unsigned char jubyte; 175typedef unsigned short jushort; 176typedef unsigned int juint; 177typedef unsigned long long julong; 178 179 180//---------------------------------------------------------------------------------------------------- 181// Constant for jlong (specifying a long long constant is C++ compiler specific) 182 183// Build a 64bit integer constant 184#define CONST64(x) (x ## LL) 185#define UCONST64(x) (x ## ULL) 186 187const jlong min_jlong = CONST64(0x8000000000000000); 188const jlong max_jlong = CONST64(0x7fffffffffffffff); 189 190#ifdef SOLARIS 191//---------------------------------------------------------------------------------------------------- 192// ANSI C++ fixes 193// NOTE:In the ANSI committee's continuing attempt to make each version 194// of C++ incompatible with the previous version, you can no longer cast 195// pointers to functions without specifying linkage unless you want to get 196// warnings. 197// 198// This also means that pointers to functions can no longer be "hidden" 199// in opaque types like void * because at the invokation point warnings 200// will be generated. While this makes perfect sense from a type safety 201// point of view it causes a lot of warnings on old code using C header 202// files. Here are some typedefs to make the job of silencing warnings 203// a bit easier. 204// 205// The final kick in the teeth is that you can only have extern "C" linkage 206// specified at file scope. So these typedefs are here rather than in the 207// .hpp for the class (os:Solaris usually) that needs them. 208 209extern "C" { 210 typedef int (*int_fnP_thread_t_iP_uP_stack_tP_gregset_t)(thread_t, int*, unsigned *, stack_t*, gregset_t); 211 typedef int (*int_fnP_thread_t_i_gregset_t)(thread_t, int, gregset_t); 212 typedef int (*int_fnP_thread_t_i)(thread_t, int); 213 typedef int (*int_fnP_thread_t)(thread_t); 214 215 typedef int (*int_fnP_cond_tP_mutex_tP_timestruc_tP)(cond_t *cv, mutex_t *mx, timestruc_t *abst); 216 typedef int (*int_fnP_cond_tP_mutex_tP)(cond_t *cv, mutex_t *mx); 217 218 // typedef for missing API in libc 219 typedef int (*int_fnP_mutex_tP_i_vP)(mutex_t *, int, void *); 220 typedef int (*int_fnP_mutex_tP)(mutex_t *); 221 typedef int (*int_fnP_cond_tP_i_vP)(cond_t *cv, int scope, void *arg); 222 typedef int (*int_fnP_cond_tP)(cond_t *cv); 223}; 224#endif 225 226//---------------------------------------------------------------------------------------------------- 227// Debugging 228 229#define DEBUG_EXCEPTION ::abort(); 230 231extern "C" void breakpoint(); 232#define BREAKPOINT ::breakpoint() 233 234// checking for nanness 235#ifdef SOLARIS 236#ifdef SPARC 237inline int g_isnan(float f) { return isnanf(f); } 238#else 239// isnanf() broken on Intel Solaris use isnand() 240inline int g_isnan(float f) { return isnand(f); } 241#endif 242 243inline int g_isnan(double f) { return isnand(f); } 244#elif LINUX 245inline int g_isnan(float f) { return isnanf(f); } 246inline int g_isnan(double f) { return isnan(f); } 247#else 248#error "missing platform-specific definition here" 249#endif 250 251// Checking for finiteness 252 253inline int g_isfinite(jfloat f) { return finite(f); } 254inline int g_isfinite(jdouble f) { return finite(f); } 255 256 257// Wide characters 258 259inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); } 260 261// Portability macros 262#define PRAGMA_INTERFACE 263#define PRAGMA_IMPLEMENTATION 264#define PRAGMA_IMPLEMENTATION_(arg) 265#define VALUE_OBJ_CLASS_SPEC : public _ValueObj 266 267// Formatting. 268#ifdef _LP64 269#define FORMAT64_MODIFIER "l" 270#else // !_LP64 271#define FORMAT64_MODIFIER "ll" 272#endif // _LP64 273 274#define offset_of(klass,field) offsetof(klass,field) 275 276#endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_SPARCWORKS_HPP 277