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

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

     1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

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

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

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

     6 /* Implement shared vtbl methods. */

     8 #include "xptcprivate.h"

     9 #include "xptiprivate.h"

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

    13 extern "C" nsresult ATTRIBUTE_USED

    14 PrepareAndDispatch(nsXPTCStubBase* self, uint32_t methodIndex, uint32_t* args)

    15 {

    17     typedef struct {

    18         uint32_t hi;

    19         uint32_t lo;

    20     } DU;               // have to move 64 bit entities as 32 bit halves since

    21                         // stack slots are not guaranteed 16 byte aligned

    23 #define PARAM_BUFFER_COUNT     16

    25     nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];

    26     nsXPTCMiniVariant* dispatchParams = nullptr;

    27     const nsXPTMethodInfo* info;

    28     uint8_t paramCount;

    29     uint8_t i;

    30     nsresult result = NS_ERROR_FAILURE;

    32     NS_ASSERTION(self,"no self");

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

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

    37     paramCount = info->GetParamCount();

    39     // setup variant array pointer

    40     if(paramCount > PARAM_BUFFER_COUNT)

    41         dispatchParams = new nsXPTCMiniVariant[paramCount];

    42     else

    43         dispatchParams = paramBuffer;

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

    46     uint32_t* ap = args;

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

    48     {

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

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

    51         nsXPTCMiniVariant* dp = &dispatchParams[i];

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

    54         {

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

    56             continue;

    57         }

    58         // else

    59         switch(type)

    60         {

    61         case nsXPTType::T_I8     : dp->val.i8  = *((int32_t*)  ap);       break;

    62         case nsXPTType::T_I16    : dp->val.i16 = *((int32_t*) ap);       break;

    63         case nsXPTType::T_I32    : dp->val.i32 = *((int32_t*) ap);       break;

    64         case nsXPTType::T_DOUBLE :

    65         case nsXPTType::T_U64    :

    66         case nsXPTType::T_I64    : ((DU *)dp)->hi = ((DU *)ap)->hi;

    67                                    ((DU *)dp)->lo = ((DU *)ap)->lo;

    68                                    ap++;

    69                                    break;

    70         case nsXPTType::T_U8     : dp->val.u8  = *((uint32_t*)ap);       break;

    71         case nsXPTType::T_U16    : dp->val.u16 = *((uint32_t*)ap);       break;

    72         case nsXPTType::T_U32    : dp->val.u32 = *((uint32_t*)ap);       break;

    73         case nsXPTType::T_FLOAT  : dp->val.f   = *((float*)   ap);       break;

    74         case nsXPTType::T_BOOL   : dp->val.b   = *((uint32_t*)ap);       break;

    75         case nsXPTType::T_CHAR   : dp->val.c   = *((uint32_t*)ap);       break;

    76         case nsXPTType::T_WCHAR  : dp->val.wc  = *((int32_t*) ap);       break;

    77         default:

    78             NS_ERROR("bad type");

    79             break;

    80         }

    81     }

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

    85     if(dispatchParams != paramBuffer)

    86         delete [] dispatchParams;

    88     return result;

    89 }

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

    93 #define STUB_ENTRY(n) \

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

    95 { \

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

    97 	return SharedStub(n, &dummy); \

    98 }

   100 #define SENTINEL_ENTRY(n) \

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

   102 { \

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

   104     return NS_ERROR_NOT_IMPLEMENTED; \

   105 }

   107 #include "xptcstubsdef.inc"

   109 #endif /* sparc || __sparc__ */

The Tor Browser / file revision