84 lines
3.1 KiB
C++
84 lines
3.1 KiB
C++
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the 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 Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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/* Platform specific code to invoke XPCOM methods on native objects */
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#include "xptcprivate.h"
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#if !defined(__sparc64__) && !defined(_LP64)
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#error "This code is for Sparc64 only"
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#endif
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extern "C" PRUint32
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invoke_copy_to_stack(PRUint64* d, PRUint32 paramCount, nsXPTCVariant* s)
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{
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/*
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We need to copy the parameters for this function to locals and use them
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from there since the parameters occupy the same stack space as the stack
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we're trying to populate.
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*/
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PRUint64 *l_d = d;
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nsXPTCVariant *l_s = s;
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PRUint64 l_paramCount = paramCount;
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PRUint64 regCount = 0; // return the number of registers to load from the stack
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for(PRUint64 i = 0; i < l_paramCount; i++, l_d++, l_s++)
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{
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if (regCount < 5) regCount++;
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if (l_s->IsPtrData())
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{
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*l_d = (PRUint64)l_s->ptr;
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continue;
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}
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switch (l_s->type)
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{
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case nsXPTType::T_I8 : *((PRInt64*)l_d) = l_s->val.i8; break;
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case nsXPTType::T_I16 : *((PRInt64*)l_d) = l_s->val.i16; break;
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case nsXPTType::T_I32 : *((PRInt64*)l_d) = l_s->val.i32; break;
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case nsXPTType::T_I64 : *((PRInt64*)l_d) = l_s->val.i64; break;
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case nsXPTType::T_U8 : *((PRUint64*)l_d) = l_s->val.u8; break;
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case nsXPTType::T_U16 : *((PRUint64*)l_d) = l_s->val.u16; break;
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case nsXPTType::T_U32 : *((PRUint64*)l_d) = l_s->val.u32; break;
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case nsXPTType::T_U64 : *((PRUint64*)l_d) = l_s->val.u64; break;
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/* in the case of floats, we want to put the bits in to the
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64bit space right justified... floats in the paramter array on
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sparcv9 use odd numbered registers.. %f1, %f3, so we have to skip
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the space that would be occupied by %f0, %f2, etc.
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*/
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case nsXPTType::T_FLOAT : *(((float*)l_d) + 1) = l_s->val.f; break;
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case nsXPTType::T_DOUBLE: *((double*)l_d) = l_s->val.d; break;
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case nsXPTType::T_BOOL : *((PRBool*)l_d) = l_s->val.b; break;
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case nsXPTType::T_CHAR : *((PRUint64*)l_d) = l_s->val.c; break;
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case nsXPTType::T_WCHAR : *((PRInt64*)l_d) = l_s->val.wc; break;
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default:
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// all the others are plain pointer types
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*((void**)l_d) = l_s->val.p;
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break;
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}
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}
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return regCount;
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}
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