| /* |
| * Copyright (c) 1998, 2015, Oracle and/or its affiliates. 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_GCC_HPP |
| #define SHARE_VM_UTILITIES_GLOBALDEFINITIONS_GCC_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> |
| |
| #ifdef SOLARIS |
| #include <ieeefp.h> |
| #endif // SOLARIS |
| |
| #include <math.h> |
| #include <time.h> |
| #include <fcntl.h> |
| #include <dlfcn.h> |
| #include <pthread.h> |
| |
| #ifdef SOLARIS |
| #include <thread.h> |
| #endif // SOLARIS |
| |
| #include <limits.h> |
| #include <errno.h> |
| |
| #ifdef SOLARIS |
| #include <sys/trap.h> |
| #include <sys/regset.h> |
| #include <sys/procset.h> |
| #include <ucontext.h> |
| #include <setjmp.h> |
| #endif // SOLARIS |
| |
| # ifdef SOLARIS_MUTATOR_LIBTHREAD |
| # include <sys/procfs.h> |
| # endif |
| |
| #if defined(LINUX) || defined(_ALLBSD_SOURCE) |
| #ifndef __STDC_LIMIT_MACROS |
| #define __STDC_LIMIT_MACROS |
| #endif // __STDC_LIMIT_MACROS |
| #include <inttypes.h> |
| #include <signal.h> |
| #ifndef __OpenBSD__ |
| #include <ucontext.h> |
| #endif |
| #ifdef __APPLE__ |
| #include <AvailabilityMacros.h> |
| #include <mach/mach.h> |
| #endif |
| #include <sys/time.h> |
| #endif // LINUX || _ALLBSD_SOURCE |
| |
| // 4810578: varargs unsafe on 32-bit integer/64-bit pointer architectures |
| // When __cplusplus is defined, NULL is defined as 0 (32-bit constant) in |
| // system header files. On 32-bit architectures, there is no problem. |
| // On 64-bit architectures, defining NULL as a 32-bit constant can cause |
| // problems with varargs functions: C++ integral promotion rules say for |
| // varargs, we pass the argument 0 as an int. So, if NULL was passed to a |
| // varargs function it will remain 32-bits. Depending on the calling |
| // convention of the machine, if the argument is passed on the stack then |
| // only 32-bits of the "NULL" pointer may be initialized to zero. The |
| // other 32-bits will be garbage. If the varargs function is expecting a |
| // pointer when it extracts the argument, then we have a problem. |
| // |
| // Solution: For 64-bit architectures, redefine NULL as 64-bit constant 0. |
| // |
| // Note: this fix doesn't work well on Linux because NULL will be overwritten |
| // whenever a system header file is included. Linux handles NULL correctly |
| // through a special type '__null'. |
| #ifdef SOLARIS |
| #ifdef _LP64 |
| #undef NULL |
| #define NULL 0L |
| #else |
| #ifndef NULL |
| #define NULL 0 |
| #endif |
| #endif |
| #endif |
| |
| // 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__ |
| #ifdef _LP64 |
| #define NULL_WORD 0L |
| #else |
| // Cast 0 to intptr_t rather than int32_t since they are not the same type |
| // on platforms such as Mac OS X. |
| #define NULL_WORD ((intptr_t)0) |
| #endif |
| #else |
| #define NULL_WORD NULL |
| #endif |
| |
| #if !defined(LINUX) && !defined(_ALLBSD_SOURCE) |
| // Compiler-specific primitive types |
| typedef unsigned short uint16_t; |
| #ifndef _UINT32_T |
| #define _UINT32_T |
| typedef unsigned int uint32_t; |
| #endif // _UINT32_T |
| |
| #if !defined(_SYS_INT_TYPES_H) |
| #ifndef _UINT64_T |
| #define _UINT64_T |
| typedef unsigned long long uint64_t; |
| #endif // _UINT64_T |
| // %%%% how to access definition of intptr_t portably in 5.5 onward? |
| typedef int intptr_t; |
| typedef unsigned int uintptr_t; |
| // If this gets an error, figure out a symbol XXX that implies the |
| // prior definition of intptr_t, and add "&& !defined(XXX)" above. |
| #endif // _SYS_INT_TYPES_H |
| |
| #endif // !LINUX && !_ALLBSD_SOURCE |
| |
| // Additional Java basic types |
| |
| typedef uint8_t jubyte; |
| typedef uint16_t jushort; |
| typedef uint32_t juint; |
| typedef uint64_t julong; |
| |
| |
| //---------------------------------------------------------------------------------------------------- |
| // 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); |
| |
| |
| #ifdef SOLARIS |
| //---------------------------------------------------------------------------------------------------- |
| // ANSI C++ fixes |
| // NOTE:In the ANSI committee's continuing attempt to make each version |
| // of C++ incompatible with the previous version, you can no longer cast |
| // pointers to functions without specifying linkage unless you want to get |
| // warnings. |
| // |
| // This also means that pointers to functions can no longer be "hidden" |
| // in opaque types like void * because at the invokation point warnings |
| // will be generated. While this makes perfect sense from a type safety |
| // point of view it causes a lot of warnings on old code using C header |
| // files. Here are some typedefs to make the job of silencing warnings |
| // a bit easier. |
| // |
| // The final kick in the teeth is that you can only have extern "C" linkage |
| // specified at file scope. So these typedefs are here rather than in the |
| // .hpp for the class (os:Solaris usually) that needs them. |
| |
| extern "C" { |
| typedef int (*int_fnP_thread_t_iP_uP_stack_tP_gregset_t)(thread_t, int*, unsigned *, stack_t*, gregset_t); |
| typedef int (*int_fnP_thread_t_i_gregset_t)(thread_t, int, gregset_t); |
| typedef int (*int_fnP_thread_t_i)(thread_t, int); |
| typedef int (*int_fnP_thread_t)(thread_t); |
| |
| typedef int (*int_fnP_cond_tP_mutex_tP_timestruc_tP)(cond_t *cv, mutex_t *mx, timestruc_t *abst); |
| typedef int (*int_fnP_cond_tP_mutex_tP)(cond_t *cv, mutex_t *mx); |
| |
| // typedef for missing API in libc |
| typedef int (*int_fnP_mutex_tP_i_vP)(mutex_t *, int, void *); |
| typedef int (*int_fnP_mutex_tP)(mutex_t *); |
| typedef int (*int_fnP_cond_tP_i_vP)(cond_t *cv, int scope, void *arg); |
| typedef int (*int_fnP_cond_tP)(cond_t *cv); |
| }; |
| #endif // SOLARIS |
| |
| //---------------------------------------------------------------------------------------------------- |
| // Debugging |
| |
| #define DEBUG_EXCEPTION ::abort(); |
| |
| #ifdef ARM32 |
| #ifdef SOLARIS |
| #define BREAKPOINT __asm__ volatile (".long 0xe1200070") |
| #else |
| #define BREAKPOINT __asm__ volatile (".long 0xe7f001f0") |
| #endif |
| #else |
| extern "C" void breakpoint(); |
| #define BREAKPOINT ::breakpoint() |
| #endif |
| |
| // checking for nanness |
| #ifdef SOLARIS |
| #ifdef SPARC |
| inline int g_isnan(float f) { return isnanf(f); } |
| #else |
| // isnanf() broken on Intel Solaris use isnand() |
| inline int g_isnan(float f) { return isnand(f); } |
| #endif |
| inline int g_isnan(double f) { return isnand(f); } |
| #elif defined(__APPLE__) |
| inline int g_isnan(double f) { return isnan(f); } |
| #elif defined(LINUX) || defined(_ALLBSD_SOURCE) |
| inline int g_isnan(float f) { return isnanf(f); } |
| inline int g_isnan(double f) { return isnan(f); } |
| #else |
| #error "missing platform-specific definition here" |
| #endif |
| |
| // GCC 4.3 does not allow 0.0/0.0 to produce a NAN value |
| #if (__GNUC__ == 4) && (__GNUC_MINOR__ > 2) |
| #define CAN_USE_NAN_DEFINE 1 |
| #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 |
| |
| #ifndef ATTRIBUTE_PRINTF |
| // Diagnostic pragmas like the ones defined below in PRAGMA_FORMAT_NONLITERAL_IGNORED |
| // were only introduced in GCC 4.2. Because we have no other possibility to ignore |
| // these warnings for older versions of GCC, we simply don't decorate our printf-style |
| // functions with __attribute__(format) in that case. |
| #if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 2)) || (__GNUC__ > 4) |
| #define ATTRIBUTE_PRINTF(fmt,vargs) __attribute__((format(printf, fmt, vargs))) |
| #else |
| #define ATTRIBUTE_PRINTF(fmt,vargs) |
| #endif |
| #endif |
| |
| #define PRAGMA_FORMAT_NONLITERAL_IGNORED _Pragma("GCC diagnostic ignored \"-Wformat-nonliteral\"") \ |
| _Pragma("GCC diagnostic ignored \"-Wformat-security\"") |
| #define PRAGMA_FORMAT_IGNORED _Pragma("GCC diagnostic ignored \"-Wformat\"") |
| |
| #if defined(__clang_major__) && \ |
| (__clang_major__ >= 4 || \ |
| (__clang_major__ >= 3 && __clang_minor__ >= 1)) || \ |
| ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4) |
| // Tested to work with clang version 3.1 and better. |
| #define PRAGMA_DIAG_PUSH _Pragma("GCC diagnostic push") |
| #define PRAGMA_DIAG_POP _Pragma("GCC diagnostic pop") |
| #define PRAGMA_FORMAT_NONLITERAL_IGNORED_EXTERNAL |
| #define PRAGMA_FORMAT_NONLITERAL_IGNORED_INTERNAL PRAGMA_FORMAT_NONLITERAL_IGNORED |
| |
| // Hack to deal with gcc yammering about non-security format stuff |
| #else |
| // Old versions of gcc don't do push/pop, also do not cope with this pragma within a function |
| // One method does so much varied printing that it is decorated with both internal and external |
| // versions of the macro-pragma to obtain better checking with newer compilers. |
| #define PRAGMA_DIAG_PUSH |
| #define PRAGMA_DIAG_POP |
| #define PRAGMA_FORMAT_NONLITERAL_IGNORED_EXTERNAL PRAGMA_FORMAT_NONLITERAL_IGNORED |
| #define PRAGMA_FORMAT_NONLITERAL_IGNORED_INTERNAL |
| #endif |
| |
| #ifndef __clang_major__ |
| #define PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC _Pragma("GCC diagnostic ignored \"-Wformat\"") _Pragma("GCC diagnostic error \"-Wformat-nonliteral\"") _Pragma("GCC diagnostic error \"-Wformat-security\"") |
| #endif |
| |
| #if (__GNUC__ == 2) && (__GNUC_MINOR__ < 95) |
| #define TEMPLATE_TABLE_BUG |
| #endif |
| #if (__GNUC__ == 2) && (__GNUC_MINOR__ >= 96) |
| #define CONST_SDM_BUG |
| #endif |
| |
| // Formatting. |
| #ifdef _LP64 |
| #define FORMAT64_MODIFIER "l" |
| #else // !_LP64 |
| #define FORMAT64_MODIFIER "ll" |
| #endif // _LP64 |
| |
| // HACK: gcc warns about applying offsetof() to non-POD object or calculating |
| // offset directly when base address is NULL. Use 16 to get around the |
| // warning. gcc-3.4 has an option -Wno-invalid-offsetof to suppress |
| // this warning. |
| #define offset_of(klass,field) (size_t)((intx)&(((klass*)16)->field) - 16) |
| |
| #ifdef offsetof |
| # undef offsetof |
| #endif |
| #define offsetof(klass,field) offset_of(klass,field) |
| |
| #if defined(_LP64) && defined(__APPLE__) |
| #define JLONG_FORMAT "%ld" |
| #endif // _LP64 && __APPLE__ |
| |
| #endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_GCC_HPP |