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lightning-sunbird  0.9+nobinonly
xptcinvoke_osf1_alpha.cpp
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00001 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
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00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is mozilla.org code.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1998
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either of the GNU General Public License Version 2 or later (the "GPL"),
00026  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00027  * in which case the provisions of the GPL or the LGPL are applicable instead
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00035  *
00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 /* Platform specific code to invoke XPCOM methods on native objects */
00039 
00040 /* contributed by Steve Streeter <Stephen.Streeter@Compaq.com> */
00041 
00042 #include "xptcprivate.h"
00043 
00044 /* Prototype specifies unmangled function name */
00045 extern "C" void
00046 invoke_copy_to_stack(PRUint64* d, PRUint32 paramCount, nsXPTCVariant* s);
00047 
00048 extern "C" void
00049 invoke_copy_to_stack(PRUint64* d, PRUint32 paramCount, nsXPTCVariant* s)
00050 {
00051     const PRUint8 NUM_ARG_REGS = 6-1;        // -1 for "this" pointer
00052 
00053     for(PRUint32 i = 0; i < paramCount; i++, d++, s++)
00054     {
00055         if(s->IsPtrData())
00056         {
00057             *d = (PRUint64)s->ptr;
00058             continue;
00059         }
00060         switch(s->type)
00061         {
00062         case nsXPTType::T_I8     : *d = (PRUint64)s->val.i8;     break;
00063         case nsXPTType::T_I16    : *d = (PRUint64)s->val.i16;    break;
00064         case nsXPTType::T_I32    : *d = (PRUint64)s->val.i32;    break;
00065         case nsXPTType::T_I64    : *d = (PRUint64)s->val.i64;    break;
00066         case nsXPTType::T_U8     : *d = (PRUint64)s->val.u8;     break;
00067         case nsXPTType::T_U16    : *d = (PRUint64)s->val.u16;    break;
00068         case nsXPTType::T_U32    : *d = (PRUint64)s->val.u32;    break;
00069         case nsXPTType::T_U64    : *d = (PRUint64)s->val.u64;    break;
00070         case nsXPTType::T_FLOAT  :
00071             if(i < NUM_ARG_REGS)
00072             {
00073                 // convert floats to doubles if they are to be passed
00074                 // via registers so we can just deal with doubles later
00075                 union { PRUint64 u64; double d; } t;
00076                 t.d = (double)s->val.f;
00077                 *d = t.u64;
00078             }
00079             else
00080                 // otherwise copy to stack normally
00081                 *d = (PRUint64)s->val.u32;
00082             break;
00083         case nsXPTType::T_DOUBLE : *d = (PRUint64)s->val.u64;    break;
00084         case nsXPTType::T_BOOL   : *d = (PRUint64)s->val.b;      break;
00085         case nsXPTType::T_CHAR   : *d = (PRUint64)s->val.c;      break;
00086         case nsXPTType::T_WCHAR  : *d = (PRUint64)s->val.wc;     break;
00087         default:
00088             // all the others are plain pointer types
00089             *d = (PRUint64)s->val.p;
00090             break;
00091         }
00092     }
00093 }