jdk8-mips64-public/hotspot: src/share/vm/utilities/globalDefinitions

src/share/vm/utilities/globalDefinitions_visCPP.hpp@b6a8cc1e0d92 (annotated)

src/share/vm/utilities/globalDefinitions_visCPP.hpp

Tue, 29 Jul 2014 13:54:16 +0200

author: thartmann
date: Tue, 29 Jul 2014 13:54:16 +0200
changeset 7001: b6a8cc1e0d92
parent 6198: 55fb97c4c58d
child 7535: 7ae4e26cb1e0
child 9478: f3108e56b502
permissions: -rw-r--r--

8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
Summary: Fixed parfait warnings in globalDefinitions files by using a union for casts.
Reviewed-by: kvn

 /*
  * Copyright (c) 1997, 2013, 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_VISCPP_HPP
 #define SHARE_VM_UTILITIES_GLOBALDEFINITIONS_VISCPP_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 <stdlib.h>
 # include <stddef.h>// for offsetof
 # include <io.h>    // for stream.cpp
 # include <float.h> // for _isnan
 # include <stdio.h> // for va_list
 # include <time.h>
 # include <fcntl.h>
 # include <limits.h>
 // Need this on windows to get the math constants (e.g., M_PI).
 #define _USE_MATH_DEFINES
 # include <math.h>
 // 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 may have a problem.
 //
 // Solution: For 64-bit architectures, redefine NULL as 64-bit constant 0.
 #ifdef _LP64
 #undef NULL
 // 64-bit Windows uses a P64 data model (not LP64, although we define _LP64)
 // Since longs are 32-bit we cannot use 0L here.  Use the Visual C++ specific
 // 64-bit integer-suffix (i64) instead.
 #define NULL 0i64
 #else
 #ifndef NULL
 #define NULL 0
 #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.
 #define NULL_WORD NULL
 // Compiler-specific primitive types
 typedef unsigned __int8  uint8_t;
 typedef unsigned __int16 uint16_t;
 typedef unsigned __int32 uint32_t;
 typedef unsigned __int64 uint64_t;
 #ifdef _WIN64
 typedef unsigned __int64 uintptr_t;
 #else
 typedef unsigned int uintptr_t;
 #endif
 typedef signed   __int8  int8_t;
 typedef signed   __int16 int16_t;
 typedef signed   __int32 int32_t;
 typedef signed   __int64 int64_t;
 #ifdef _WIN64
 typedef signed   __int64 intptr_t;
 typedef signed   __int64 ssize_t;
 #else
 typedef signed   int intptr_t;
 typedef signed   int ssize_t;
 #endif
 #ifndef UINTPTR_MAX
 #ifdef _WIN64
 #define UINTPTR_MAX _UI64_MAX
 #else
 #define UINTPTR_MAX _UI32_MAX
 #endif
 #endif
 //----------------------------------------------------------------------------------------------------
 // Additional Java basic types
 typedef unsigned char    jubyte;
 typedef unsigned short   jushort;
 typedef unsigned int     juint;
 typedef unsigned __int64 julong;
 //----------------------------------------------------------------------------------------------------
 // Non-standard stdlib-like stuff:
 inline int strcasecmp(const char *s1, const char *s2) { return _stricmp(s1,s2); }
 inline int strncasecmp(const char *s1, const char *s2, size_t n) {
   return _strnicmp(s1,s2,n);
 }
 //----------------------------------------------------------------------------------------------------
 // Debugging
 #if _WIN64
 extern "C" void breakpoint();
 #define BREAKPOINT ::breakpoint()
 #else
 #define BREAKPOINT __asm { int 3 }
 #endif
 //----------------------------------------------------------------------------------------------------
 // Checking for nanness
 inline int g_isnan(jfloat  f)                    { return _isnan(f); }
 inline int g_isnan(jdouble f)                    { return _isnan(f); }
 //----------------------------------------------------------------------------------------------------
 // Checking for finiteness
 inline int g_isfinite(jfloat  f)                 { return _finite(f); }
 inline int g_isfinite(jdouble f)                 { return _finite(f); }
 //----------------------------------------------------------------------------------------------------
 // Constant for jlong (specifying an long long constant is C++ compiler specific)
 // Build a 64bit integer constant on with Visual C++
 #define CONST64(x)  (x ## i64)
 #define UCONST64(x) ((uint64_t)CONST64(x))
 const jlong min_jlong = CONST64(0x8000000000000000);
 const jlong max_jlong = CONST64(0x7fffffffffffffff);
 //----------------------------------------------------------------------------------------------------
 // Miscellaneous
 // Visual Studio 2005 deprecates POSIX names - use ISO C++ names instead
 #if _MSC_VER >= 1400
 #define open _open
 #define close _close
 #define read  _read
 #define write _write
 #define lseek _lseek
 #define unlink _unlink
 #define strdup _strdup
 #endif
 #pragma warning( disable : 4100 ) // unreferenced formal parameter
 #pragma warning( disable : 4127 ) // conditional expression is constant
 #pragma warning( disable : 4514 ) // unreferenced inline function has been removed
 #pragma warning( disable : 4244 ) // possible loss of data
 #pragma warning( disable : 4512 ) // assignment operator could not be generated
 #pragma warning( disable : 4201 ) // nonstandard extension used : nameless struct/union (needed in windows.h)
 #pragma warning( disable : 4511 ) // copy constructor could not be generated
 #pragma warning( disable : 4291 ) // no matching operator delete found; memory will not be freed if initialization thows an exception
 #ifdef CHECK_UNHANDLED_OOPS
 #pragma warning( disable : 4521 ) // class has multiple copy ctors of a single type
 #pragma warning( disable : 4522 ) // class has multiple assignment operators of a single type
 #endif // CHECK_UNHANDLED_OOPS
 #if _MSC_VER >= 1400
 #pragma warning( disable : 4996 ) // unsafe string functions. Same as define _CRT_SECURE_NO_WARNINGS/_CRT_SECURE_NO_DEPRICATE
 #endif
 inline int vsnprintf(char* buf, size_t count, const char* fmt, va_list argptr) {
   // If number of characters written == count, Windows doesn't write a
   // terminating NULL, so we do it ourselves.
   int ret = _vsnprintf(buf, count, fmt, argptr);
   if (count > 0) buf[count-1] = '\0';
   return ret;
 }
 // Portability macros
 #define PRAGMA_INTERFACE
 #define PRAGMA_IMPLEMENTATION
 #define PRAGMA_IMPLEMENTATION_(arg)
 #define VALUE_OBJ_CLASS_SPEC    : public _ValueObj
 // Formatting.
 #define FORMAT64_MODIFIER "I64"
 // Visual Studio doesn't provide inttypes.h so provide appropriate definitions here.
 // The 32 bits ones might need I32 but seem to work ok without it.
 #define PRId32       "d"
 #define PRIu32       "u"
 #define PRIx32       "x"
 #define PRId64       "I64d"
 #define PRIu64       "I64u"
 #define PRIx64       "I64x"
 #ifdef _LP64
 #define PRIdPTR       "I64d"
 #define PRIuPTR       "I64u"
 #define PRIxPTR       "I64x"
 #else
 #define PRIdPTR       "d"
 #define PRIuPTR       "u"
 #define PRIxPTR       "x"
 #endif
 #define offset_of(klass,field) offsetof(klass,field)
 #endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_VISCPP_HPP

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/utilities/globalDefinitions_visCPP.hpp@b6a8cc1e0d92 (annotated)

src/share/vm/utilities/globalDefinitions_visCPP.hpp