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xptcstubs_arm_netbsd.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
00006  * 1.1 (the "License"); you may not use this file except in compliance with
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) 1999
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
00028  * of those above. If you wish to allow use of your version of this file only
00029  * under the terms of either the GPL or the LGPL, and not to allow others to
00030  * use your version of this file under the terms of the MPL, indicate your
00031  * decision by deleting the provisions above and replace them with the notice
00032  * and other provisions required by the GPL or the LGPL. If you do not delete
00033  * the provisions above, a recipient may use your version of this file under
00034  * the terms of any one of the MPL, the GPL or the LGPL.
00035  *
00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 /* Implement shared vtbl methods. */
00039 
00040 #include "xptcprivate.h"
00041 
00042 nsresult
00043 PrepareAndDispatch(nsXPTCStubBase* self, uint32 methodIndex, PRUint32* args)
00044 {
00045 #define PARAM_BUFFER_COUNT     16
00046 
00047     nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
00048     nsXPTCMiniVariant* dispatchParams = NULL;
00049     nsIInterfaceInfo* iface_info = NULL;
00050     const nsXPTMethodInfo* info;
00051     PRUint8 paramCount;
00052     PRUint8 i;
00053     nsresult result = NS_ERROR_FAILURE;
00054 
00055     NS_ASSERTION(self,"no self");
00056 
00057     self->GetInterfaceInfo(&iface_info);
00058     NS_ASSERTION(iface_info,"no interface info");
00059 
00060     iface_info->GetMethodInfo(PRUint16(methodIndex), &info);
00061     NS_ASSERTION(info,"no interface info");
00062 
00063     paramCount = info->GetParamCount();
00064 
00065     // setup variant array pointer
00066     if(paramCount > PARAM_BUFFER_COUNT)
00067         dispatchParams = new nsXPTCMiniVariant[paramCount];
00068     else
00069         dispatchParams = paramBuffer;
00070     NS_ASSERTION(dispatchParams,"no place for params");
00071 
00072     PRUint32* ap = args;
00073     for(i = 0; i < paramCount; i++, ap++)
00074     {
00075         const nsXPTParamInfo& param = info->GetParam(i);
00076         const nsXPTType& type = param.GetType();
00077         nsXPTCMiniVariant* dp = &dispatchParams[i];
00078 
00079         if(param.IsOut() || !type.IsArithmetic())
00080         {
00081             dp->val.p = (void*) *ap;
00082             continue;
00083         }
00084         // else
00085         switch(type)
00086         {
00087         case nsXPTType::T_I8     : dp->val.i8  = *((PRInt8*)  ap);       break;
00088         case nsXPTType::T_I16    : dp->val.i16 = *((PRInt16*) ap);       break;
00089         case nsXPTType::T_I32    : dp->val.i32 = *((PRInt32*) ap);       break;
00090         case nsXPTType::T_I64    : dp->val.i64 = *((PRInt64*) ap); ap++; break;
00091         case nsXPTType::T_U8     : dp->val.u8  = *((PRUint8*) ap);       break;
00092         case nsXPTType::T_U16    : dp->val.u16 = *((PRUint16*)ap);       break;
00093         case nsXPTType::T_U32    : dp->val.u32 = *((PRUint32*)ap);       break;
00094         case nsXPTType::T_U64    : dp->val.u64 = *((PRUint64*)ap); ap++; break;
00095         case nsXPTType::T_FLOAT  : dp->val.f   = *((float*)   ap);       break;
00096         case nsXPTType::T_DOUBLE : dp->val.d   = *((double*)  ap); ap++; break;
00097         case nsXPTType::T_BOOL   : dp->val.b   = *((PRBool*)  ap);       break;
00098         case nsXPTType::T_CHAR   : dp->val.c   = *((char*)    ap);       break;
00099         case nsXPTType::T_WCHAR  : dp->val.wc  = *((wchar_t*) ap);       break;
00100         default:
00101             NS_ASSERTION(0, "bad type");
00102             break;
00103         }
00104     }
00105 
00106     result = self->CallMethod((PRUint16)methodIndex, info, dispatchParams);
00107 
00108     NS_RELEASE(iface_info);
00109 
00110     if(dispatchParams != paramBuffer)
00111         delete [] dispatchParams;
00112 
00113     return result;
00114 }
00115 
00116 /*
00117  * These stubs move just move the values passed in registers onto the stack,
00118  * so they are contiguous with values passed on the stack, and then calls
00119  * PrepareAndDispatch() to do the dirty work.
00120  */
00121 
00122 #define STUB_ENTRY(n)                                                 \
00123 __asm__(                                                       \
00124     ".global  _Stub"#n"__14nsXPTCStubBase\n\t"                 \
00125 "_Stub"#n"__14nsXPTCStubBase:\n\t"                             \
00126     "stmfd    sp!, {r1, r2, r3}    \n\t"                       \
00127     "mov      ip, sp               \n\t"                       \
00128     "stmfd    sp!, {fp, ip, lr, pc}       \n\t"                       \
00129     "sub      fp, ip, #4           \n\t"                       \
00130     "mov      r1, #"#n"            \n\t"    /* = methodIndex   */ \
00131     "add      r2, sp, #16          \n\t"                       \
00132     "bl              _PrepareAndDispatch__FP14nsXPTCStubBaseUiPUi   \n\t"    \
00133     "ldmea    fp, {fp, sp, lr}     \n\t"                       \
00134     "add      sp, sp, #12          \n\t"                       \
00135     "mov      pc, lr               \n\t"                       \
00136 );
00137 
00138 #define SENTINEL_ENTRY(n) \
00139 nsresult nsXPTCStubBase::Sentinel##n() \
00140 { \
00141     NS_ASSERTION(0,"nsXPTCStubBase::Sentinel called"); \
00142     return NS_ERROR_NOT_IMPLEMENTED; \
00143 }
00144 
00145 #include "xptcstubsdef.inc"