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/* -*- Mode: C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */
/* Implement shared vtbl methods. */
#include "xptcprivate.h"
#include "xptiprivate.h"
#if defined(AIX)
/*
For PPC (AIX & MAC), the first 8 integral and the first 13 f.p. parameters
arrive in a separate chunk of data that has been loaded from the registers.
The args pointer has been set to the start of the parameters BEYOND the ones
arriving in registers
*/
extern "C" nsresult ATTRIBUTE_USED
PrepareAndDispatch(nsXPTCStubBase* self, uint32_t methodIndex, uint32_t* args, uint32_t *gprData, double *fprData)
{
typedef struct {
uint32_t hi;
uint32_t lo; // have to move 64 bit entities as 32 bit halves since
} DU; // stack slots are not guaranteed 16 byte aligned
#define PARAM_BUFFER_COUNT 16
#define PARAM_GPR_COUNT 7
nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
nsXPTCMiniVariant* dispatchParams = nullptr;
const nsXPTMethodInfo* info = nullptr;
uint8_t paramCount;
uint8_t i;
nsresult result = NS_ERROR_FAILURE;
NS_ASSERTION(self,"no self");
self->mEntry->GetMethodInfo(uint16_t(methodIndex), &info);
NS_ASSERTION(info,"no method info");
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");
uint32_t* ap = args;
uint32_t iCount = 0;
uint32_t fpCount = 0;
for(i = 0; i < paramCount; i++)
{
const nsXPTParamInfo& param = info->GetParam(i);
const nsXPTType& type = param.GetType();
nsXPTCMiniVariant* dp = &dispatchParams[i];
if(param.IsOut() || !type.IsArithmetic())
{
if (iCount < PARAM_GPR_COUNT)
dp->val.p = (void*) gprData[iCount++];
else
dp->val.p = (void*) *ap++;
continue;
}
// else
switch(type)
{
case nsXPTType::T_I8 : if (iCount < PARAM_GPR_COUNT)
dp->val.i8 = (int8_t) gprData[iCount++];
else
dp->val.i8 = (int8_t) *ap++;
break;
case nsXPTType::T_I16 : if (iCount < PARAM_GPR_COUNT)
dp->val.i16 = (int16_t) gprData[iCount++];
else
dp->val.i16 = (int16_t) *ap++;
break;
case nsXPTType::T_I32 : if (iCount < PARAM_GPR_COUNT)
dp->val.i32 = (int32_t) gprData[iCount++];
else
dp->val.i32 = (int32_t) *ap++;
break;
case nsXPTType::T_I64 : if (iCount < PARAM_GPR_COUNT)
((DU *)dp)->hi = (int32_t) gprData[iCount++];
else
((DU *)dp)->hi = (int32_t) *ap++;
if (iCount < PARAM_GPR_COUNT)
((DU *)dp)->lo = (uint32_t) gprData[iCount++];
else
((DU *)dp)->lo = (uint32_t) *ap++;
break;
case nsXPTType::T_U8 : if (iCount < PARAM_GPR_COUNT)
dp->val.u8 = (uint8_t) gprData[iCount++];
else
dp->val.u8 = (uint8_t) *ap++;
break;
case nsXPTType::T_U16 : if (iCount < PARAM_GPR_COUNT)
dp->val.u16 = (uint16_t) gprData[iCount++];
else
dp->val.u16 = (uint16_t) *ap++;
break;
case nsXPTType::T_U32 : if (iCount < PARAM_GPR_COUNT)
dp->val.u32 = (uint32_t) gprData[iCount++];
else
dp->val.u32 = (uint32_t) *ap++;
break;
case nsXPTType::T_U64 : if (iCount < PARAM_GPR_COUNT)
((DU *)dp)->hi = (uint32_t) gprData[iCount++];
else
((DU *)dp)->hi = (uint32_t) *ap++;
if (iCount < PARAM_GPR_COUNT)
((DU *)dp)->lo = (uint32_t) gprData[iCount++];
else
((DU *)dp)->lo = (uint32_t) *ap++;
break;
case nsXPTType::T_FLOAT : if (fpCount < 13) {
dp->val.f = (float) fprData[fpCount++];
if (iCount < PARAM_GPR_COUNT)
++iCount;
else
++ap;
}
else
dp->val.f = *((float*) ap++);
break;
case nsXPTType::T_DOUBLE : if (fpCount < 13) {
dp->val.d = (double) fprData[fpCount++];
if (iCount < PARAM_GPR_COUNT)
++iCount;
else
++ap;
if (iCount < PARAM_GPR_COUNT)
++iCount;
else
++ap;
}
else {
dp->val.f = *((double*) ap);
ap += 2;
}
break;
case nsXPTType::T_BOOL : if (iCount < PARAM_GPR_COUNT)
dp->val.b = (bool) gprData[iCount++];
else
dp->val.b = (bool) *ap++;
break;
case nsXPTType::T_CHAR : if (iCount < PARAM_GPR_COUNT)
dp->val.c = (char) gprData[iCount++];
else
dp->val.c = (char) *ap++;
break;
case nsXPTType::T_WCHAR : if (iCount < PARAM_GPR_COUNT)
dp->val.wc = (wchar_t) gprData[iCount++];
else
dp->val.wc = (wchar_t) *ap++;
break;
default:
NS_ERROR("bad type");
break;
}
}
result = self->mOuter->CallMethod((uint16_t)methodIndex,info,dispatchParams);
if(dispatchParams != paramBuffer)
delete [] dispatchParams;
return result;
}
#define STUB_ENTRY(n)
#define SENTINEL_ENTRY(n) \
nsresult nsXPTCStubBase::Sentinel##n() \
{ \
NS_ERROR("nsXPTCStubBase::Sentinel called"); \
return NS_ERROR_NOT_IMPLEMENTED; \
}
#include "xptcstubsdef.inc"
#endif /* AIX */
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