/* ***** 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 #include "prtypes.h" /* Needed for HAS_LONG_LONG ifdefs & _declspec */ #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++ or Symantec C * 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 # 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 */ # else # error Unsupported PC development environment. # endif # ifndef IS_LITTLE_ENDIAN # define IS_LITTLE_ENDIAN # endif /* Mac */ #elif defined (macintosh) || defined(Macintosh) || defined(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 */ /******************************************************************************/