mirror of
https://github.com/mozilla/gecko-dev.git
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566 lines
26 KiB
C
566 lines
26 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/*******************************************************************************
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* Java Runtime Interface - Machine Dependent Types
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******************************************************************************/
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#ifndef JRI_MD_H
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#define JRI_MD_H
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#include <assert.h>
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#include "prtypes.h" /* Needed for HAS_LONG_LONG ifdefs */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*******************************************************************************
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* WHAT'S UP WITH THIS FILE?
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*
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* This is where we define the mystical JRI_PUBLIC_API macro that works on all
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* platforms. If you're running with Visual C++, Symantec C, or Borland's
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* development environment on the PC, you're all set. Or if you're on the Mac
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* with Metrowerks, Symantec or MPW with SC you're ok too. For UNIX it shouldn't
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* matter.
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*
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* On UNIX though you probably care about a couple of other symbols though:
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* IS_LITTLE_ENDIAN must be defined for little-endian systems
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* HAVE_LONG_LONG must be defined on systems that have 'long long' integers
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* HAVE_ALIGNED_LONGLONGS must be defined if long-longs must be 8 byte aligned
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* HAVE_ALIGNED_DOUBLES must be defined if doubles must be 8 byte aligned
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* IS_64 must be defined on 64-bit machines (like Dec Alpha)
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******************************************************************************/
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/* DLL Entry modifiers... */
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/* PC */
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#if defined(XP_OS2)
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# ifdef XP_OS2_VACPP
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# define JRI_PUBLIC_API(ResultType) ResultType _Optlink
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# define JRI_PUBLIC_VAR(VarType) VarType
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# define JRI_CALLBACK
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# else
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# define JRI_PUBLIC_API(ResultType) ResultType
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# define JRI_PUBLIC_VAR(VarType) VarType
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# define JRI_CALLBACK
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# endif
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#elif defined(XP_WIN) || defined(_WINDOWS) || defined(WIN32) || defined(_WIN32)
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# include <windows.h>
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# if defined(_MSC_VER) || defined(__GNUC__)
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# if defined(WIN32) || defined(_WIN32)
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# define JRI_PUBLIC_API(ResultType) __declspec(dllexport) ResultType
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# define JRI_PUBLIC_VAR(VarType) VarType
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# define JRI_PUBLIC_VAR_EXP(VarType) __declspec(dllexport) VarType
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# define JRI_PUBLIC_VAR_IMP(VarType) __declspec(dllimport) VarType
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# define JRI_NATIVE_STUB(ResultType) __declspec(dllexport) ResultType
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# define JRI_CALLBACK
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# else /* !_WIN32 */
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# if defined(_WINDLL)
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# define JRI_PUBLIC_API(ResultType) ResultType __cdecl __export __loadds
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# define JRI_PUBLIC_VAR(VarType) VarType
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# define JRI_PUBLIC_VAR_EXP(VarType) JRI_PUBLIC_VAR(VarType)
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# define JRI_PUBLIC_VAR_IMP(VarType) JRI_PUBLIC_VAR(VarType)
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# define JRI_NATIVE_STUB(ResultType) ResultType __cdecl __loadds
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# define JRI_CALLBACK __loadds
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# else /* !WINDLL */
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# define JRI_PUBLIC_API(ResultType) ResultType __cdecl __export
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# define JRI_PUBLIC_VAR(VarType) VarType
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# define JRI_PUBLIC_VAR_EXP(VarType) JRI_PUBLIC_VAR(VarType)
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# define JRI_PUBLIC_VAR_IMP(VarType) JRI_PUBLIC_VAR(VarType)
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# define JRI_NATIVE_STUB(ResultType) ResultType __cdecl __export
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# define JRI_CALLBACK __export
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# endif /* !WINDLL */
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# endif /* !_WIN32 */
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# elif defined(__BORLANDC__)
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# if defined(WIN32) || defined(_WIN32)
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# define JRI_PUBLIC_API(ResultType) __export ResultType
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# define JRI_PUBLIC_VAR(VarType) VarType
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# define JRI_PUBLIC_VAR_EXP(VarType) __export VarType
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# define JRI_PUBLIC_VAR_IMP(VarType) __import VarType
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# define JRI_NATIVE_STUB(ResultType) __export ResultType
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# define JRI_CALLBACK
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# else /* !_WIN32 */
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# define JRI_PUBLIC_API(ResultType) ResultType _cdecl _export _loadds
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# define JRI_PUBLIC_VAR(VarType) VarType
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# define JRI_PUBLIC_VAR_EXP(VarType) __cdecl __export VarType
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# define JRI_PUBLIC_VAR_IMP(VarType) __cdecl __import VarType
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# define JRI_NATIVE_STUB(ResultType) ResultType _cdecl _loadds
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# define JRI_CALLBACK _loadds
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# endif
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# else
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# error Unsupported PC development environment.
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# endif
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# ifndef IS_LITTLE_ENDIAN
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# define IS_LITTLE_ENDIAN
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# endif
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/* Mac */
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#elif defined (macintosh) || Macintosh || THINK_C
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# if defined(__MWERKS__) /* Metrowerks */
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# if !__option(enumsalwaysint)
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# error You need to define 'Enums Always Int' for your project.
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# endif
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# if defined(TARGET_CPU_68K) && !TARGET_RT_MAC_CFM
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# if !__option(fourbyteints)
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# error You need to define 'Struct Alignment: 68k' for your project.
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# endif
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# endif /* !GENERATINGCFM */
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# define JRI_PUBLIC_API(ResultType) __declspec(export) ResultType
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# define JRI_PUBLIC_VAR(VarType) JRI_PUBLIC_API(VarType)
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# define JRI_PUBLIC_VAR_EXP(VarType) JRI_PUBLIC_API(VarType)
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# define JRI_PUBLIC_VAR_IMP(VarType) JRI_PUBLIC_API(VarType)
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# define JRI_NATIVE_STUB(ResultType) JRI_PUBLIC_API(ResultType)
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# elif defined(__SC__) /* Symantec */
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# error What are the Symantec defines? (warren@netscape.com)
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# elif macintosh && applec /* MPW */
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# error Please upgrade to the latest MPW compiler (SC).
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# else
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# error Unsupported Mac development environment.
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# endif
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# define JRI_CALLBACK
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/* Unix or else */
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#else
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# define JRI_PUBLIC_API(ResultType) ResultType
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# define JRI_PUBLIC_VAR(VarType) VarType
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# define JRI_PUBLIC_VAR_EXP(VarType) JRI_PUBLIC_VAR(VarType)
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# define JRI_PUBLIC_VAR_IMP(VarType) JRI_PUBLIC_VAR(VarType)
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# define JRI_NATIVE_STUB(ResultType) ResultType
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# define JRI_CALLBACK
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#endif
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#ifndef FAR /* for non-Win16 */
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#define FAR
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#endif
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/******************************************************************************/
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/* Java Scalar Types */
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#if 0 /* now in jni.h */
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typedef short jchar;
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typedef short jshort;
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typedef float jfloat;
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typedef double jdouble;
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typedef juint jsize;
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#endif
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/* moved from jni.h -- Sun's new jni.h doesn't have this anymore */
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#ifdef __cplusplus
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typedef class _jobject *jref;
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#else
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typedef struct _jobject *jref;
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#endif
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typedef unsigned char jbool;
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typedef signed char jbyte;
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#ifdef IS_64 /* XXX ok for alpha, but not right on all 64-bit architectures */
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typedef unsigned int juint;
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typedef int jint;
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#else
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typedef unsigned long juint;
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typedef long jint;
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#endif
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/*******************************************************************************
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* jlong : long long (64-bit signed integer type) support.
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******************************************************************************/
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/*
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** Bit masking macros. (n must be <= 31 to be portable)
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*/
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#define JRI_BIT(n) ((juint)1 << (n))
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#define JRI_BITMASK(n) (JRI_BIT(n) - 1)
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#ifdef HAVE_LONG_LONG
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#ifdef OSF1
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/* long is default 64-bit on OSF1, -std1 does not allow long long */
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typedef long jlong;
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typedef unsigned long julong;
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#define jlong_MAXINT 0x7fffffffffffffffL
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#define jlong_MININT 0x8000000000000000L
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#define jlong_ZERO 0x0L
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#elif (defined(WIN32) || defined(_WIN32))
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typedef LONGLONG jlong;
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typedef DWORDLONG julong;
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#define jlong_MAXINT 0x7fffffffffffffffi64
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#define jlong_MININT 0x8000000000000000i64
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#define jlong_ZERO 0x0i64
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#else
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typedef long long jlong;
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typedef unsigned long long julong;
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#define jlong_MAXINT 0x7fffffffffffffffLL
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#define jlong_MININT 0x8000000000000000LL
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#define jlong_ZERO 0x0LL
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#endif
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#define jlong_IS_ZERO(a) ((a) == 0)
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#define jlong_EQ(a, b) ((a) == (b))
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#define jlong_NE(a, b) ((a) != (b))
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#define jlong_GE_ZERO(a) ((a) >= 0)
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#define jlong_CMP(a, op, b) ((a) op (b))
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#define jlong_AND(r, a, b) ((r) = (a) & (b))
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#define jlong_OR(r, a, b) ((r) = (a) | (b))
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#define jlong_XOR(r, a, b) ((r) = (a) ^ (b))
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#define jlong_OR2(r, a) ((r) = (r) | (a))
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#define jlong_NOT(r, a) ((r) = ~(a))
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#define jlong_NEG(r, a) ((r) = -(a))
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#define jlong_ADD(r, a, b) ((r) = (a) + (b))
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#define jlong_SUB(r, a, b) ((r) = (a) - (b))
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#define jlong_MUL(r, a, b) ((r) = (a) * (b))
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#define jlong_DIV(r, a, b) ((r) = (a) / (b))
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#define jlong_MOD(r, a, b) ((r) = (a) % (b))
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#define jlong_SHL(r, a, b) ((r) = (a) << (b))
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#define jlong_SHR(r, a, b) ((r) = (a) >> (b))
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#define jlong_USHR(r, a, b) ((r) = (julong)(a) >> (b))
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#define jlong_ISHL(r, a, b) ((r) = ((jlong)(a)) << (b))
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#define jlong_L2I(i, l) ((i) = (int)(l))
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#define jlong_L2UI(ui, l) ((ui) =(unsigned int)(l))
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#define jlong_L2F(f, l) ((f) = (l))
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#define jlong_L2D(d, l) ((d) = (l))
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#define jlong_I2L(l, i) ((l) = (i))
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#define jlong_UI2L(l, ui) ((l) = (ui))
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#define jlong_F2L(l, f) ((l) = (f))
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#define jlong_D2L(l, d) ((l) = (d))
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#define jlong_UDIVMOD(qp, rp, a, b) \
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(*(qp) = ((julong)(a) / (b)), \
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*(rp) = ((julong)(a) % (b)))
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#else /* !HAVE_LONG_LONG */
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typedef struct {
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#ifdef IS_LITTLE_ENDIAN
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juint lo, hi;
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#else
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juint hi, lo;
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#endif
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} jlong;
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typedef jlong julong;
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extern jlong jlong_MAXINT, jlong_MININT, jlong_ZERO;
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#define jlong_IS_ZERO(a) (((a).hi == 0) && ((a).lo == 0))
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#define jlong_EQ(a, b) (((a).hi == (b).hi) && ((a).lo == (b).lo))
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#define jlong_NE(a, b) (((a).hi != (b).hi) || ((a).lo != (b).lo))
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#define jlong_GE_ZERO(a) (((a).hi >> 31) == 0)
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/*
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* NB: jlong_CMP and jlong_UCMP work only for strict relationals (<, >).
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*/
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#define jlong_CMP(a, op, b) (((int32)(a).hi op (int32)(b).hi) || \
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(((a).hi == (b).hi) && ((a).lo op (b).lo)))
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#define jlong_UCMP(a, op, b) (((a).hi op (b).hi) || \
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(((a).hi == (b).hi) && ((a).lo op (b).lo)))
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#define jlong_AND(r, a, b) ((r).lo = (a).lo & (b).lo, \
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(r).hi = (a).hi & (b).hi)
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#define jlong_OR(r, a, b) ((r).lo = (a).lo | (b).lo, \
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(r).hi = (a).hi | (b).hi)
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#define jlong_XOR(r, a, b) ((r).lo = (a).lo ^ (b).lo, \
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(r).hi = (a).hi ^ (b).hi)
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#define jlong_OR2(r, a) ((r).lo = (r).lo | (a).lo, \
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(r).hi = (r).hi | (a).hi)
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#define jlong_NOT(r, a) ((r).lo = ~(a).lo, \
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(r).hi = ~(a).hi)
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#define jlong_NEG(r, a) ((r).lo = -(int32)(a).lo, \
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(r).hi = -(int32)(a).hi - ((r).lo != 0))
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#define jlong_ADD(r, a, b) { \
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jlong _a, _b; \
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_a = a; _b = b; \
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(r).lo = _a.lo + _b.lo; \
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(r).hi = _a.hi + _b.hi + ((r).lo < _b.lo); \
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}
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#define jlong_SUB(r, a, b) { \
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jlong _a, _b; \
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_a = a; _b = b; \
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(r).lo = _a.lo - _b.lo; \
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(r).hi = _a.hi - _b.hi - (_a.lo < _b.lo); \
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} \
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/*
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* Multiply 64-bit operands a and b to get 64-bit result r.
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* First multiply the low 32 bits of a and b to get a 64-bit result in r.
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* Then add the outer and inner products to r.hi.
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*/
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#define jlong_MUL(r, a, b) { \
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jlong _a, _b; \
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_a = a; _b = b; \
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jlong_MUL32(r, _a.lo, _b.lo); \
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(r).hi += _a.hi * _b.lo + _a.lo * _b.hi; \
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}
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/* XXX _jlong_lo16(a) = ((a) << 16 >> 16) is better on some archs (not on mips) */
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#define _jlong_lo16(a) ((a) & JRI_BITMASK(16))
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#define _jlong_hi16(a) ((a) >> 16)
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/*
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* Multiply 32-bit operands a and b to get 64-bit result r.
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* Use polynomial expansion based on primitive field element (1 << 16).
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*/
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#define jlong_MUL32(r, a, b) { \
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juint _a1, _a0, _b1, _b0, _y0, _y1, _y2, _y3; \
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_a1 = _jlong_hi16(a), _a0 = _jlong_lo16(a); \
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_b1 = _jlong_hi16(b), _b0 = _jlong_lo16(b); \
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_y0 = _a0 * _b0; \
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_y1 = _a0 * _b1; \
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_y2 = _a1 * _b0; \
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_y3 = _a1 * _b1; \
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_y1 += _jlong_hi16(_y0); /* can't carry */ \
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_y1 += _y2; /* might carry */ \
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if (_y1 < _y2) _y3 += 1 << 16; /* propagate */ \
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(r).lo = (_jlong_lo16(_y1) << 16) + _jlong_lo16(_y0); \
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(r).hi = _y3 + _jlong_hi16(_y1); \
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}
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|
/*
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|
* Divide 64-bit unsigned operand a by 64-bit unsigned operand b, setting *qp
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* to the 64-bit unsigned quotient, and *rp to the 64-bit unsigned remainder.
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* Minimize effort if one of qp and rp is null.
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*/
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#define jlong_UDIVMOD(qp, rp, a, b) jlong_udivmod(qp, rp, a, b)
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extern JRI_PUBLIC_API(void)
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jlong_udivmod(julong *qp, julong *rp, julong a, julong b);
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|
#define jlong_DIV(r, a, b) { \
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|
jlong _a, _b; \
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|
juint _negative = (int32)(a).hi < 0; \
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|
if (_negative) { \
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|
jlong_NEG(_a, a); \
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|
} else { \
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|
_a = a; \
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|
} \
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|
if ((int32)(b).hi < 0) { \
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|
_negative ^= 1; \
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jlong_NEG(_b, b); \
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|
} else { \
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|
_b = b; \
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|
} \
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jlong_UDIVMOD(&(r), 0, _a, _b); \
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if (_negative) \
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jlong_NEG(r, r); \
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}
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#define jlong_MOD(r, a, b) { \
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jlong _a, _b; \
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juint _negative = (int32)(a).hi < 0; \
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if (_negative) { \
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jlong_NEG(_a, a); \
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|
} else { \
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|
_a = a; \
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|
} \
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|
if ((int32)(b).hi < 0) { \
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jlong_NEG(_b, b); \
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|
} else { \
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|
_b = b; \
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|
} \
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|
jlong_UDIVMOD(0, &(r), _a, _b); \
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|
if (_negative) \
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|
jlong_NEG(r, r); \
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|
}
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|
/*
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|
* NB: b is a juint, not jlong or julong, for the shift ops.
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|
*/
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|
#define jlong_SHL(r, a, b) { \
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|
if (b) { \
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|
jlong _a; \
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|
_a = a; \
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|
if ((b) < 32) { \
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|
(r).lo = _a.lo << (b); \
|
|
(r).hi = (_a.hi << (b)) | (_a.lo >> (32 - (b))); \
|
|
} else { \
|
|
(r).lo = 0; \
|
|
(r).hi = _a.lo << ((b) & 31); \
|
|
} \
|
|
} else { \
|
|
(r) = (a); \
|
|
} \
|
|
}
|
|
|
|
/* a is an int32, b is int32, r is jlong */
|
|
#define jlong_ISHL(r, a, b) { \
|
|
if (b) { \
|
|
jlong _a; \
|
|
_a.lo = (a); \
|
|
_a.hi = 0; \
|
|
if ((b) < 32) { \
|
|
(r).lo = (a) << (b); \
|
|
(r).hi = ((a) >> (32 - (b))); \
|
|
} else { \
|
|
(r).lo = 0; \
|
|
(r).hi = (a) << ((b) & 31); \
|
|
} \
|
|
} else { \
|
|
(r).lo = (a); \
|
|
(r).hi = 0; \
|
|
} \
|
|
}
|
|
|
|
#define jlong_SHR(r, a, b) { \
|
|
if (b) { \
|
|
jlong _a; \
|
|
_a = a; \
|
|
if ((b) < 32) { \
|
|
(r).lo = (_a.hi << (32 - (b))) | (_a.lo >> (b)); \
|
|
(r).hi = (int32)_a.hi >> (b); \
|
|
} else { \
|
|
(r).lo = (int32)_a.hi >> ((b) & 31); \
|
|
(r).hi = (int32)_a.hi >> 31; \
|
|
} \
|
|
} else { \
|
|
(r) = (a); \
|
|
} \
|
|
}
|
|
|
|
#define jlong_USHR(r, a, b) { \
|
|
if (b) { \
|
|
jlong _a; \
|
|
_a = a; \
|
|
if ((b) < 32) { \
|
|
(r).lo = (_a.hi << (32 - (b))) | (_a.lo >> (b)); \
|
|
(r).hi = _a.hi >> (b); \
|
|
} else { \
|
|
(r).lo = _a.hi >> ((b) & 31); \
|
|
(r).hi = 0; \
|
|
} \
|
|
} else { \
|
|
(r) = (a); \
|
|
} \
|
|
}
|
|
|
|
#define jlong_L2I(i, l) ((i) = (l).lo)
|
|
#define jlong_L2UI(ui, l) ((ui) = (l).lo)
|
|
#define jlong_L2F(f, l) { double _d; jlong_L2D(_d, l); (f) = (float) _d; }
|
|
|
|
#define jlong_L2D(d, l) { \
|
|
int32 _negative; \
|
|
jlong _absval; \
|
|
\
|
|
_negative = (l).hi >> 31; \
|
|
if (_negative) { \
|
|
jlong_NEG(_absval, l); \
|
|
} else { \
|
|
_absval = l; \
|
|
} \
|
|
(d) = (double)_absval.hi * 4.294967296e9 + _absval.lo; \
|
|
if (_negative) \
|
|
(d) = -(d); \
|
|
}
|
|
|
|
#define jlong_I2L(l, i) ((l).hi = (i) >> 31, (l).lo = (i))
|
|
#define jlong_UI2L(l, ui) ((l).hi = 0, (l).lo = (ui))
|
|
#define jlong_F2L(l, f) { double _d = (double) f; jlong_D2L(l, _d); }
|
|
|
|
#define jlong_D2L(l, d) { \
|
|
int _negative; \
|
|
double _absval, _d_hi; \
|
|
jlong _lo_d; \
|
|
\
|
|
_negative = ((d) < 0); \
|
|
_absval = _negative ? -(d) : (d); \
|
|
\
|
|
(l).hi = (juint)(_absval / 4.294967296e9); \
|
|
(l).lo = 0; \
|
|
jlong_L2D(_d_hi, l); \
|
|
_absval -= _d_hi; \
|
|
_lo_d.hi = 0; \
|
|
if (_absval < 0) { \
|
|
_lo_d.lo = (juint) -_absval; \
|
|
jlong_SUB(l, l, _lo_d); \
|
|
} else { \
|
|
_lo_d.lo = (juint) _absval; \
|
|
jlong_ADD(l, l, _lo_d); \
|
|
} \
|
|
\
|
|
if (_negative) \
|
|
jlong_NEG(l, l); \
|
|
}
|
|
|
|
#endif /* !HAVE_LONG_LONG */
|
|
|
|
/******************************************************************************/
|
|
|
|
#ifdef HAVE_ALIGNED_LONGLONGS
|
|
#define JRI_GET_INT64(_t,_addr) ( ((_t).x[0] = ((jint*)(_addr))[0]), \
|
|
((_t).x[1] = ((jint*)(_addr))[1]), \
|
|
(_t).l )
|
|
#define JRI_SET_INT64(_t, _addr, _v) ( (_t).l = (_v), \
|
|
((jint*)(_addr))[0] = (_t).x[0], \
|
|
((jint*)(_addr))[1] = (_t).x[1] )
|
|
#else
|
|
#define JRI_GET_INT64(_t,_addr) (*(jlong*)(_addr))
|
|
#define JRI_SET_INT64(_t, _addr, _v) (*(jlong*)(_addr) = (_v))
|
|
#endif
|
|
|
|
/* If double's must be aligned on doubleword boundaries then define this */
|
|
#ifdef HAVE_ALIGNED_DOUBLES
|
|
#define JRI_GET_DOUBLE(_t,_addr) ( ((_t).x[0] = ((jint*)(_addr))[0]), \
|
|
((_t).x[1] = ((jint*)(_addr))[1]), \
|
|
(_t).d )
|
|
#define JRI_SET_DOUBLE(_t, _addr, _v) ( (_t).d = (_v), \
|
|
((jint*)(_addr))[0] = (_t).x[0], \
|
|
((jint*)(_addr))[1] = (_t).x[1] )
|
|
#else
|
|
#define JRI_GET_DOUBLE(_t,_addr) (*(jdouble*)(_addr))
|
|
#define JRI_SET_DOUBLE(_t, _addr, _v) (*(jdouble*)(_addr) = (_v))
|
|
#endif
|
|
|
|
/******************************************************************************/
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* JRI_MD_H */
|
|
/******************************************************************************/
|