duke@435: /* trims@2708: * Copyright (c) 1998, 2011, Oracle and/or its affiliates. All rights reserved. duke@435: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. duke@435: * duke@435: * This code is free software; you can redistribute it and/or modify it duke@435: * under the terms of the GNU General Public License version 2 only, as duke@435: * published by the Free Software Foundation. duke@435: * duke@435: * This code is distributed in the hope that it will be useful, but WITHOUT duke@435: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or duke@435: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License duke@435: * version 2 for more details (a copy is included in the LICENSE file that duke@435: * accompanied this code). duke@435: * duke@435: * You should have received a copy of the GNU General Public License version duke@435: * 2 along with this work; if not, write to the Free Software Foundation, duke@435: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. duke@435: * trims@1907: * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA trims@1907: * or visit www.oracle.com if you need additional information or have any trims@1907: * questions. duke@435: * duke@435: */ duke@435: stefank@2314: #ifndef SHARE_VM_UTILITIES_GLOBALDEFINITIONS_GCC_HPP stefank@2314: #define SHARE_VM_UTILITIES_GLOBALDEFINITIONS_GCC_HPP stefank@2314: stefank@2314: #include "prims/jni.h" stefank@2314: duke@435: // This file holds compiler-dependent includes, duke@435: // globally used constants & types, class (forward) duke@435: // declarations and a few frequently used utility functions. duke@435: duke@435: #include duke@435: #include duke@435: #include duke@435: #include duke@435: #include duke@435: #include duke@435: #include duke@435: duke@435: #ifdef SOLARIS duke@435: #include duke@435: #endif // SOLARIS duke@435: duke@435: #include duke@435: #ifndef FP_PZERO duke@435: // Linux doesn't have positive/negative zero duke@435: #define FP_PZERO FP_ZERO duke@435: #endif duke@435: #if (!defined fpclass) && ((!defined SPARC) || (!defined SOLARIS)) duke@435: #define fpclass fpclassify duke@435: #endif duke@435: duke@435: #include duke@435: #include duke@435: #include duke@435: #include duke@435: duke@435: #ifdef SOLARIS duke@435: #include duke@435: #endif // SOLARIS duke@435: duke@435: #include duke@435: #include duke@435: duke@435: #ifdef SOLARIS duke@435: #include duke@435: #include duke@435: #include duke@435: #include duke@435: #include duke@435: #endif // SOLARIS duke@435: duke@435: # ifdef SOLARIS_MUTATOR_LIBTHREAD duke@435: # include duke@435: # endif duke@435: duke@435: #ifdef LINUX kamg@2589: #define __STDC_LIMIT_MACROS duke@435: #include duke@435: #include duke@435: #include duke@435: #include duke@435: #endif // LINUX duke@435: duke@435: // 4810578: varargs unsafe on 32-bit integer/64-bit pointer architectures duke@435: // When __cplusplus is defined, NULL is defined as 0 (32-bit constant) in duke@435: // system header files. On 32-bit architectures, there is no problem. duke@435: // On 64-bit architectures, defining NULL as a 32-bit constant can cause duke@435: // problems with varargs functions: C++ integral promotion rules say for duke@435: // varargs, we pass the argument 0 as an int. So, if NULL was passed to a duke@435: // varargs function it will remain 32-bits. Depending on the calling duke@435: // convention of the machine, if the argument is passed on the stack then duke@435: // only 32-bits of the "NULL" pointer may be initialized to zero. The duke@435: // other 32-bits will be garbage. If the varargs function is expecting a duke@435: // pointer when it extracts the argument, then we have a problem. duke@435: // duke@435: // Solution: For 64-bit architectures, redefine NULL as 64-bit constant 0. duke@435: // duke@435: // Note: this fix doesn't work well on Linux because NULL will be overwritten duke@435: // whenever a system header file is included. Linux handles NULL correctly duke@435: // through a special type '__null'. duke@435: #ifdef SOLARIS duke@435: #ifdef _LP64 duke@435: #undef NULL duke@435: #define NULL 0L duke@435: #else duke@435: #ifndef NULL duke@435: #define NULL 0 duke@435: #endif duke@435: #endif duke@435: #endif duke@435: duke@435: // NULL vs NULL_WORD: duke@435: // On Linux NULL is defined as a special type '__null'. Assigning __null to duke@435: // integer variable will cause gcc warning. Use NULL_WORD in places where a duke@435: // pointer is stored as integer value. On some platforms, sizeof(intptr_t) > duke@435: // sizeof(void*), so here we want something which is integer type, but has the duke@435: // same size as a pointer. duke@435: #ifdef LINUX duke@435: #ifdef _LP64 duke@435: #define NULL_WORD 0L duke@435: #else xlu@947: // Cast 0 to intptr_t rather than int32_t since they are not the same type xlu@947: // on platforms such as Mac OS X. xlu@947: #define NULL_WORD ((intptr_t)0) duke@435: #endif duke@435: #else duke@435: #define NULL_WORD NULL duke@435: #endif duke@435: duke@435: #ifndef LINUX duke@435: // Compiler-specific primitive types duke@435: typedef unsigned short uint16_t; duke@435: #ifndef _UINT32_T duke@435: #define _UINT32_T duke@435: typedef unsigned int uint32_t; duke@435: #endif // _UINT32_T duke@435: duke@435: #if !defined(_SYS_INT_TYPES_H) duke@435: #ifndef _UINT64_T duke@435: #define _UINT64_T duke@435: typedef unsigned long long uint64_t; duke@435: #endif // _UINT64_T duke@435: // %%%% how to access definition of intptr_t portably in 5.5 onward? duke@435: typedef int intptr_t; duke@435: typedef unsigned int uintptr_t; duke@435: // If this gets an error, figure out a symbol XXX that implies the duke@435: // prior definition of intptr_t, and add "&& !defined(XXX)" above. duke@435: #endif // _SYS_INT_TYPES_H duke@435: duke@435: #endif // !LINUX duke@435: duke@435: // Additional Java basic types duke@435: duke@435: typedef uint8_t jubyte; duke@435: typedef uint16_t jushort; duke@435: typedef uint32_t juint; duke@435: typedef uint64_t julong; duke@435: duke@435: //---------------------------------------------------------------------------------------------------- duke@435: // Special (possibly not-portable) casts duke@435: // Cast floats into same-size integers and vice-versa w/o changing bit-pattern duke@435: // %%%%%% These seem like standard C++ to me--how about factoring them out? - Ungar duke@435: duke@435: inline jint jint_cast (jfloat x) { return *(jint* )&x; } duke@435: inline jlong jlong_cast (jdouble x) { return *(jlong* )&x; } duke@435: duke@435: inline jfloat jfloat_cast (jint x) { return *(jfloat* )&x; } duke@435: inline jdouble jdouble_cast(jlong x) { return *(jdouble*)&x; } duke@435: duke@435: //---------------------------------------------------------------------------------------------------- duke@435: // Constant for jlong (specifying an long long canstant is C++ compiler specific) duke@435: duke@435: // Build a 64bit integer constant duke@435: #define CONST64(x) (x ## LL) duke@435: #define UCONST64(x) (x ## ULL) duke@435: duke@435: const jlong min_jlong = CONST64(0x8000000000000000); duke@435: const jlong max_jlong = CONST64(0x7fffffffffffffff); duke@435: duke@435: duke@435: #ifdef SOLARIS duke@435: //---------------------------------------------------------------------------------------------------- duke@435: // ANSI C++ fixes duke@435: // NOTE:In the ANSI committee's continuing attempt to make each version duke@435: // of C++ incompatible with the previous version, you can no longer cast duke@435: // pointers to functions without specifying linkage unless you want to get duke@435: // warnings. duke@435: // duke@435: // This also means that pointers to functions can no longer be "hidden" duke@435: // in opaque types like void * because at the invokation point warnings duke@435: // will be generated. While this makes perfect sense from a type safety duke@435: // point of view it causes a lot of warnings on old code using C header duke@435: // files. Here are some typedefs to make the job of silencing warnings duke@435: // a bit easier. duke@435: // duke@435: // The final kick in the teeth is that you can only have extern "C" linkage duke@435: // specified at file scope. So these typedefs are here rather than in the duke@435: // .hpp for the class (os:Solaris usually) that needs them. duke@435: duke@435: extern "C" { duke@435: typedef int (*int_fnP_thread_t_iP_uP_stack_tP_gregset_t)(thread_t, int*, unsigned *, stack_t*, gregset_t); duke@435: typedef int (*int_fnP_thread_t_i_gregset_t)(thread_t, int, gregset_t); duke@435: typedef int (*int_fnP_thread_t_i)(thread_t, int); duke@435: typedef int (*int_fnP_thread_t)(thread_t); duke@435: duke@435: typedef int (*int_fnP_cond_tP_mutex_tP_timestruc_tP)(cond_t *cv, mutex_t *mx, timestruc_t *abst); duke@435: typedef int (*int_fnP_cond_tP_mutex_tP)(cond_t *cv, mutex_t *mx); duke@435: duke@435: // typedef for missing API in libc duke@435: typedef int (*int_fnP_mutex_tP_i_vP)(mutex_t *, int, void *); duke@435: typedef int (*int_fnP_mutex_tP)(mutex_t *); duke@435: typedef int (*int_fnP_cond_tP_i_vP)(cond_t *cv, int scope, void *arg); duke@435: typedef int (*int_fnP_cond_tP)(cond_t *cv); duke@435: }; duke@435: #endif // SOLARIS duke@435: duke@435: //---------------------------------------------------------------------------------------------------- duke@435: // Debugging duke@435: duke@435: #define DEBUG_EXCEPTION ::abort(); duke@435: bobv@2036: #ifdef ARM bobv@2036: #ifdef SOLARIS bobv@2036: #define BREAKPOINT __asm__ volatile (".long 0xe1200070") bobv@2036: #else bobv@2036: #define BREAKPOINT __asm__ volatile (".long 0xe7f001f0") bobv@2036: #endif bobv@2036: #else duke@435: extern "C" void breakpoint(); duke@435: #define BREAKPOINT ::breakpoint() bobv@2036: #endif duke@435: duke@435: // checking for nanness duke@435: #ifdef SOLARIS duke@435: #ifdef SPARC duke@435: inline int g_isnan(float f) { return isnanf(f); } duke@435: #else duke@435: // isnanf() broken on Intel Solaris use isnand() duke@435: inline int g_isnan(float f) { return isnand(f); } duke@435: #endif duke@435: inline int g_isnan(double f) { return isnand(f); } duke@435: #elif LINUX duke@435: inline int g_isnan(float f) { return isnanf(f); } duke@435: inline int g_isnan(double f) { return isnan(f); } duke@435: #else duke@435: #error "missing platform-specific definition here" duke@435: #endif duke@435: bobv@2036: // GCC 4.3 does not allow 0.0/0.0 to produce a NAN value bobv@2036: #if (__GNUC__ == 4) && (__GNUC_MINOR__ > 2) bobv@2036: #define CAN_USE_NAN_DEFINE 1 bobv@2036: #endif bobv@2036: bobv@2036: duke@435: // Checking for finiteness duke@435: duke@435: inline int g_isfinite(jfloat f) { return finite(f); } duke@435: inline int g_isfinite(jdouble f) { return finite(f); } duke@435: duke@435: duke@435: // Wide characters duke@435: duke@435: inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); } duke@435: duke@435: duke@435: // Portability macros duke@435: #define PRAGMA_INTERFACE #pragma interface duke@435: #define PRAGMA_IMPLEMENTATION #pragma implementation duke@435: #define VALUE_OBJ_CLASS_SPEC duke@435: duke@435: #if (__GNUC__ == 2) && (__GNUC_MINOR__ < 95) duke@435: #define TEMPLATE_TABLE_BUG duke@435: #endif duke@435: #if (__GNUC__ == 2) && (__GNUC_MINOR__ >= 96) duke@435: #define CONST_SDM_BUG duke@435: #endif duke@435: duke@435: // Formatting. duke@435: #ifdef _LP64 duke@435: #define FORMAT64_MODIFIER "l" duke@435: #else // !_LP64 duke@435: #define FORMAT64_MODIFIER "ll" duke@435: #endif // _LP64 duke@435: duke@435: // HACK: gcc warns about applying offsetof() to non-POD object or calculating duke@435: // offset directly when base address is NULL. Use 16 to get around the duke@435: // warning. gcc-3.4 has an option -Wno-invalid-offsetof to suppress duke@435: // this warning. duke@435: #define offset_of(klass,field) (size_t)((intx)&(((klass*)16)->field) - 16) duke@435: duke@435: #ifdef offsetof duke@435: # undef offsetof duke@435: #endif duke@435: #define offsetof(klass,field) offset_of(klass,field) stefank@2314: stefank@2314: #endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_GCC_HPP