The Tor Browser: xpcom/reflect/xptcall/src/md/unix/xptcstubs_sparc64

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-

     2  *

     3  * This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this

     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     7 /* Implement shared vtbl methods. */

     9 #include "xptcprivate.h"

    10 #include "xptiprivate.h"

    12 #if defined(sparc) || defined(__sparc__)

    14 extern "C" nsresult ATTRIBUTE_USED

    15 PrepareAndDispatch(nsXPTCStubBase* self, uint64_t methodIndex, uint64_t* args)

    16 {

    18 #define PARAM_BUFFER_COUNT     16

    20     nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];

    21     nsXPTCMiniVariant* dispatchParams = nullptr;

    22     const nsXPTMethodInfo* info;

    23     uint8_t paramCount;

    24     uint8_t i;

    25     nsresult result = NS_ERROR_FAILURE;

    27     NS_ASSERTION(self,"no self");

    29     self->mEntry->GetMethodInfo(uint16_t(methodIndex), &info);

    30     NS_ASSERTION(info,"no interface info");

    32     paramCount = info->GetParamCount();

    34     // setup variant array pointer

    35     if(paramCount > PARAM_BUFFER_COUNT)

    36         dispatchParams = new nsXPTCMiniVariant[paramCount];

    37     else

    38         dispatchParams = paramBuffer;

    40     NS_ASSERTION(dispatchParams,"no place for params");

    41     if (!dispatchParams)

    42         return NS_ERROR_OUT_OF_MEMORY;

    44     uint64_t* ap = args;

    45     for(i = 0; i < paramCount; i++, ap++)

    46     {

    47         const nsXPTParamInfo& param = info->GetParam(i);

    48         const nsXPTType& type = param.GetType();

    49         nsXPTCMiniVariant* dp = &dispatchParams[i];

    51         if(param.IsOut() || !type.IsArithmetic())

    52         {

    53             dp->val.p = (void*) *ap;

    54             continue;

    55         }

    56         // else

    57         switch(type)

    58         {

    59         case nsXPTType::T_BOOL   : dp->val.b   = *((int64_t*)  ap);      break;

    60         case nsXPTType::T_CHAR   : dp->val.c   = *((uint64_t*) ap);      break;

    61         case nsXPTType::T_WCHAR  : dp->val.wc  = *((int64_t*) ap);       break;

    62         case nsXPTType::T_I8     : dp->val.i8  = *((int64_t*)  ap);      break;

    63         case nsXPTType::T_I16    : dp->val.i16 = *((int64_t*) ap);       break;

    64         case nsXPTType::T_I32    : dp->val.i32 = *((int64_t*) ap);       break;

    65         case nsXPTType::T_I64    : dp->val.i64 = *((int64_t*) ap);       break;

    66         case nsXPTType::T_U8     : dp->val.u8  = *((uint64_t*) ap);      break;

    67         case nsXPTType::T_U16    : dp->val.u16 = *((uint64_t*)ap);       break;

    68         case nsXPTType::T_U32    : dp->val.u32 = *((uint64_t*)ap);       break;

    69         case nsXPTType::T_U64    : dp->val.u64 = *((uint64_t*) ap);      break;

    70         case nsXPTType::T_FLOAT  : dp->val.f   = ((float*)   ap)[1];     break;

    71         case nsXPTType::T_DOUBLE : dp->val.d   = *((double*) ap);        break;

    72         default:

    73             NS_ERROR("bad type");

    74             break;

    75         }

    76     }

    78     result = self->mOuter->CallMethod((uint16_t)methodIndex, info, dispatchParams);

    80     if(dispatchParams != paramBuffer)

    81         delete [] dispatchParams;

    83     return result;

    84 }

    86 extern "C" nsresult SharedStub(int, int*);

    88 #define STUB_ENTRY(n) \

    89 nsresult nsXPTCStubBase::Stub##n() \

    90 { \

    91 	int dummy; /* defeat tail-call optimization */ \

    92 	return SharedStub(n, &dummy); \

    93 }

    95 #define SENTINEL_ENTRY(n) \

    96 nsresult nsXPTCStubBase::Sentinel##n() \

    97 { \

    98     NS_ERROR("nsXPTCStubBase::Sentinel called"); \

    99     return NS_ERROR_NOT_IMPLEMENTED; \

   100 }

   102 #include "xptcstubsdef.inc"

   104 #endif /* sparc || __sparc__ */

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