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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/. */
#include "xptcprivate.h"
#include "xptiprivate.h"
#include <stddef.h>
#include <stdlib.h>
#include <stdint.h>
// "This code is for IA64 only"
/* Implement shared vtbl methods. */
extern "C" nsresult ATTRIBUTE_USED
PrepareAndDispatch(nsXPTCStubBase* self, uint32_t methodIndex,
uint64_t* intargs, uint64_t* floatargs, uint64_t* restargs)
{
#define PARAM_BUFFER_COUNT 16
nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
nsXPTCMiniVariant* dispatchParams = nullptr;
const nsXPTMethodInfo* info;
nsresult result = NS_ERROR_FAILURE;
uint64_t* iargs = intargs;
uint64_t* fargs = floatargs;
uint8_t paramCount;
uint8_t i;
NS_ASSERTION(self,"no self");
self->mEntry->GetMethodInfo(uint16_t(methodIndex), &info);
NS_ASSERTION(info,"no method info");
if (! info)
return NS_ERROR_UNEXPECTED;
paramCount = info->GetParamCount();
// setup variant array pointer
if(paramCount > PARAM_BUFFER_COUNT)
dispatchParams = new nsXPTCMiniVariant[paramCount];
else
dispatchParams = paramBuffer;
NS_ASSERTION(dispatchParams,"no place for params");
if (! dispatchParams)
return NS_ERROR_OUT_OF_MEMORY;
for(i = 0; i < paramCount; ++i)
{
int isfloat = 0;
const nsXPTParamInfo& param = info->GetParam(i);
const nsXPTType& type = param.GetType();
nsXPTCMiniVariant* dp = &dispatchParams[i];
if(param.IsOut() || !type.IsArithmetic())
{
#ifdef __LP64__
/* 64 bit pointer mode */
dp->val.p = (void*) *iargs;
#else
/* 32 bit pointer mode */
uint32_t* adr = (uint32_t*) iargs;
dp->val.p = (void*) (*(adr+1));
#endif
}
else
switch(type)
{
case nsXPTType::T_I8 : dp->val.i8 = *(iargs); break;
case nsXPTType::T_I16 : dp->val.i16 = *(iargs); break;
case nsXPTType::T_I32 : dp->val.i32 = *(iargs); break;
case nsXPTType::T_I64 : dp->val.i64 = *(iargs); break;
case nsXPTType::T_U8 : dp->val.u8 = *(iargs); break;
case nsXPTType::T_U16 : dp->val.u16 = *(iargs); break;
case nsXPTType::T_U32 : dp->val.u32 = *(iargs); break;
case nsXPTType::T_U64 : dp->val.u64 = *(iargs); break;
case nsXPTType::T_FLOAT :
isfloat = 1;
if (i < 7)
dp->val.f = (float) *((double*) fargs); /* register */
else
dp->val.u32 = *(fargs); /* memory */
break;
case nsXPTType::T_DOUBLE :
isfloat = 1;
dp->val.u64 = *(fargs);
break;
case nsXPTType::T_BOOL : dp->val.b = *(iargs); break;
case nsXPTType::T_CHAR : dp->val.c = *(iargs); break;
case nsXPTType::T_WCHAR : dp->val.wc = *(iargs); break;
default:
NS_ERROR("bad type");
break;
}
if (i < 7)
{
/* we are parsing register arguments */
if (i == 6)
{
// run out of register arguments, move on to memory arguments
iargs = restargs;
fargs = restargs;
}
else
{
++iargs; // advance one integer register slot
if (isfloat) ++fargs; // advance float register slot if isfloat
}
}
else
{
/* we are parsing memory arguments */
++iargs;
++fargs;
}
}
result = self->mOuter->CallMethod((uint16_t) methodIndex, info, dispatchParams);
if(dispatchParams != paramBuffer)
delete [] dispatchParams;
return result;
}
extern "C" nsresult SharedStub(uint64_t,uint64_t,uint64_t,uint64_t,
uint64_t,uint64_t,uint64_t,uint64_t,uint64_t,uint64_t *);
/* Variable a0-a7 were put there so we can have access to the 8 input
registers on Stubxyz entry */
#define STUB_ENTRY(n) \
nsresult nsXPTCStubBase::Stub##n(uint64_t a1, \
uint64_t a2,uint64_t a3,uint64_t a4,uint64_t a5,uint64_t a6,uint64_t a7, \
uint64_t a8) \
{ uint64_t a0 = (uint64_t) this; \
return SharedStub(a0,a1,a2,a3,a4,a5,a6,a7,(uint64_t) n, &a8); \
}
#define SENTINEL_ENTRY(n) \
nsresult nsXPTCStubBase::Sentinel##n() \
{ \
NS_ERROR("nsXPTCStubBase::Sentinel called"); \
return NS_ERROR_NOT_IMPLEMENTED; \
}
#include "xptcstubsdef.inc"
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