010d9bf7df
Also add methods to check for slow/fastdebug to Platform.java. Reviewed-by: simonis, cjplummer, dholmes
192 lines
6.2 KiB
C++
192 lines
6.2 KiB
C++
/*
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* Copyright (c) 1998, 2016, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2012, 2016 SAP SE. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef SHARE_VM_UTILITIES_GLOBALDEFINITIONS_XLC_HPP
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#define SHARE_VM_UTILITIES_GLOBALDEFINITIONS_XLC_HPP
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#include "prims/jni.h"
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// This file holds compiler-dependent includes,
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// globally used constants & types, class (forward)
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// declarations and a few frequently used utility functions.
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#include <ctype.h>
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#include <string.h>
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#include <stdarg.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <wchar.h>
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#include <math.h>
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#include <time.h>
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#include <fcntl.h>
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#include <dlfcn.h>
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#include <pthread.h>
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#include <limits.h>
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#include <errno.h>
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#include <stdint.h>
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// Use XLC compiler builtins instead of inline assembler
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#define USE_XLC_BUILTINS
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#ifdef USE_XLC_BUILTINS
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#include <builtins.h>
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#if __IBMCPP__ < 1000
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// the funtion prototype for __dcbtst(void *) is missing in XLC V8.0
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// I could compile a little test, where I provided the prototype.
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// The generated code was correct there. This is the prototype:
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// extern "builtin" void __dcbtst (void *);
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// For now we don't make use of it when compiling with XLC V8.0
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#else
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// __IBMCPP__ >= 1000
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// XLC V10 provides the prototype for __dcbtst (void *);
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#define USE_XLC_PREFETCH_WRITE_BUILTIN
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#endif
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#endif // USE_XLC_BUILTINS
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// NULL vs NULL_WORD:
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// On Linux NULL is defined as a special type '__null'. Assigning __null to
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// integer variable will cause gcc warning. Use NULL_WORD in places where a
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// pointer is stored as integer value. On some platforms, sizeof(intptr_t) >
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// sizeof(void*), so here we want something which is integer type, but has the
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// same size as a pointer.
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#ifdef __GNUC__
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#error XLC and __GNUC__?
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#else
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#define NULL_WORD NULL
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#endif
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// AIX also needs a 64 bit NULL to work as a null address pointer.
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// Most system includes on AIX would define it as an int 0 if not already defined with one
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// exception: /usr/include/dirent.h will unconditionally redefine NULL to int 0 again.
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// In this case you need to copy the following defines to a position after #include <dirent.h>
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// (see jmv_aix.h).
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#ifdef AIX
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#ifdef _LP64
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#undef NULL
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#define NULL 0L
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#else
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#ifndef NULL
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#define NULL 0
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#endif
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#endif
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#endif // AIX
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// Compiler-specific primitive types
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// All defs of int (uint16_6 etc) are defined in AIX' /usr/include/stdint.h
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// Additional Java basic types
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typedef uint8_t jubyte;
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typedef uint16_t jushort;
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typedef uint32_t juint;
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typedef uint64_t julong;
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//----------------------------------------------------------------------------------------------------
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// Constant for jlong (specifying a long long constant is C++ compiler specific)
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// Build a 64bit integer constant
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#define CONST64(x) (x ## LL)
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#define UCONST64(x) (x ## ULL)
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const jlong min_jlong = CONST64(0x8000000000000000);
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const jlong max_jlong = CONST64(0x7fffffffffffffff);
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//----------------------------------------------------------------------------------------------------
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// Debugging
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#define DEBUG_EXCEPTION ::abort();
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extern "C" void breakpoint();
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#define BREAKPOINT ::breakpoint()
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// checking for nanness
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#ifdef AIX
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inline int g_isnan(float f) { return isnan(f); }
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inline int g_isnan(double f) { return isnan(f); }
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#else
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#error "missing platform-specific definition here"
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#endif
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// Checking for finiteness
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inline int g_isfinite(jfloat f) { return finite(f); }
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inline int g_isfinite(jdouble f) { return finite(f); }
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// Wide characters
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inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); }
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// Portability macros
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#define PRAGMA_INTERFACE #pragma interface
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#define PRAGMA_IMPLEMENTATION #pragma implementation
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#define VALUE_OBJ_CLASS_SPEC
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// Formatting.
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#ifdef _LP64
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#define FORMAT64_MODIFIER "l"
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#else // !_LP64
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#define FORMAT64_MODIFIER "ll"
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#endif // _LP64
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// Cannot use xlc's offsetof as implementation of hotspot's
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// offset_of(), because xlc warns about applying offsetof() to non-POD
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// object and xlc cannot compile the expression offsetof(DataLayout,
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// _cells[index]) in DataLayout::cell_offset() . Therefore we define
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// offset_of as it is defined for gcc.
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#define offset_of(klass,field) (size_t)((intx)&(((klass*)16)->field) - 16)
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// Some constant sizes used throughout the AIX port
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#define SIZE_1K ((uint64_t) UCONST64( 0x400))
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#define SIZE_4K ((uint64_t) UCONST64( 0x1000))
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#define SIZE_64K ((uint64_t) UCONST64( 0x10000))
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#define SIZE_1M ((uint64_t) UCONST64( 0x100000))
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#define SIZE_4M ((uint64_t) UCONST64( 0x400000))
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#define SIZE_8M ((uint64_t) UCONST64( 0x800000))
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#define SIZE_16M ((uint64_t) UCONST64( 0x1000000))
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#define SIZE_256M ((uint64_t) UCONST64( 0x10000000))
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#define SIZE_1G ((uint64_t) UCONST64( 0x40000000))
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#define SIZE_2G ((uint64_t) UCONST64( 0x80000000))
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#define SIZE_4G ((uint64_t) UCONST64( 0x100000000))
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#define SIZE_16G ((uint64_t) UCONST64( 0x400000000))
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#define SIZE_32G ((uint64_t) UCONST64( 0x800000000))
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#define SIZE_64G ((uint64_t) UCONST64( 0x1000000000))
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#define SIZE_1T ((uint64_t) UCONST64(0x10000000000))
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#ifndef USE_LIBRARY_BASED_TLS_ONLY
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#define THREAD_LOCAL_DECL __thread
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#endif
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// Inlining support
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#define NOINLINE
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#define ALWAYSINLINE inline __attribute__((always_inline))
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#endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_XLC_HPP
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