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