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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* Platform specific code to invoke XPCOM methods on native objects */
#include "xptcprivate.h"
#ifndef AIX
#error "This code is for PowerPC only"
#endif
extern "C" void
invoke_copy_to_stack(uint32_t* d, uint32_t paramCount, nsXPTCVariant* s, double *fprData)
{
/*
We need to copy the parameters for this function to locals and use them
from there since the parameters occupy the same stack space as the stack
we're trying to populate.
*/
uint32_t *l_d = d;
nsXPTCVariant *l_s = s;
uint32_t l_paramCount = paramCount, fpCount = 0;
double *l_fprData = fprData;
typedef struct {
uint32_t hi;
uint32_t lo;
} DU; // have to move 64 bit entities as 32 bit halves since
// stack slots are not guaranteed 16 byte aligned
for(uint32_t i = 0; i < l_paramCount; i++, l_d++, l_s++)
{
if(l_s->IsPtrData())
{
*((void**)l_d) = l_s->ptr;
continue;
}
switch(l_s->type)
{
case nsXPTType::T_I8 : *((int32_t*) l_d) = l_s->val.i8; break;
case nsXPTType::T_I16 : *((int32_t*) l_d) = l_s->val.i16; break;
case nsXPTType::T_I32 : *((int32_t*) l_d) = l_s->val.i32; break;
case nsXPTType::T_I64 :
case nsXPTType::T_U64 :
*((uint32_t*) l_d++) = ((DU *)l_s)->hi;
*((uint32_t*) l_d) = ((DU *)l_s)->lo;
break;
case nsXPTType::T_DOUBLE :
*((uint32_t*) l_d++) = ((DU *)l_s)->hi;
*((uint32_t*) l_d) = ((DU *)l_s)->lo;
if(fpCount < 13)
l_fprData[fpCount++] = l_s->val.d;
break;
case nsXPTType::T_U8 : *((uint32_t*) l_d) = l_s->val.u8; break;
case nsXPTType::T_U16 : *((uint32_t*) l_d) = l_s->val.u16; break;
case nsXPTType::T_U32 : *((uint32_t*) l_d) = l_s->val.u32; break;
case nsXPTType::T_FLOAT :
*((float*) l_d) = l_s->val.f;
if(fpCount < 13)
l_fprData[fpCount++] = l_s->val.f;
break;
case nsXPTType::T_BOOL : *((uint32_t*) l_d) = l_s->val.b; break;
case nsXPTType::T_CHAR : *((uint32_t*) l_d) = l_s->val.c; break;
case nsXPTType::T_WCHAR : *((int32_t*) l_d) = l_s->val.wc; break;
default:
// all the others are plain pointer types
*((void**)l_d) = l_s->val.p;
break;
}
}
}
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