michael@0: /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /* Implement shared vtbl methods. */
michael@0: 
michael@0: #include "xptcprivate.h"
michael@0: 
michael@0: #if !defined(__NetBSD__) || !defined(__m68k__)
michael@0: #error This code is for NetBSD/m68k only
michael@0: #endif
michael@0: 
michael@0: extern "C" {
michael@0:     static nsresult ATTRIBUTE_USED
michael@0:     PrepareAndDispatch(nsXPTCStubBase* self, uint32_t methodIndex, uint32_t* args)
michael@0:     {
michael@0: #define PARAM_BUFFER_COUNT     16
michael@0: 
michael@0:         nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
michael@0:         nsXPTCMiniVariant* dispatchParams = nullptr;
michael@0:         nsIInterfaceInfo* iface_info = nullptr;
michael@0:         const nsXPTMethodInfo* info;
michael@0:         uint8_t paramCount;
michael@0:         uint8_t i;
michael@0:         nsresult result = NS_ERROR_FAILURE;
michael@0: 
michael@0:         NS_ASSERTION(self,"no self");
michael@0: 
michael@0:         self->GetInterfaceInfo(&iface_info);
michael@0:         NS_ASSERTION(iface_info,"no interface info");
michael@0: 
michael@0:         iface_info->GetMethodInfo(uint16_t(methodIndex), &info);
michael@0:         NS_ASSERTION(info,"no interface info");
michael@0: 
michael@0:         paramCount = info->GetParamCount();
michael@0: 
michael@0:         // setup variant array pointer
michael@0:         if(paramCount > PARAM_BUFFER_COUNT)
michael@0:             dispatchParams = new nsXPTCMiniVariant[paramCount];
michael@0:         else
michael@0:             dispatchParams = paramBuffer;
michael@0:         NS_ASSERTION(dispatchParams,"no place for params");
michael@0: 
michael@0:         uint32_t* ap = args;
michael@0:         for(i = 0; i < paramCount; i++, ap++)
michael@0:         {
michael@0:             const nsXPTParamInfo& param = info->GetParam(i);
michael@0:             const nsXPTType& type = param.GetType();
michael@0:             nsXPTCMiniVariant* dp = &dispatchParams[i];
michael@0: 
michael@0:             if(param.IsOut() || !type.IsArithmetic())
michael@0:             {
michael@0:                 dp->val.p = (void*) *ap;
michael@0:                 continue;
michael@0:             }
michael@0: 
michael@0:             switch(type)
michael@0:             {
michael@0:             // the 8 and 16 bit types will have been promoted to 32 bits before
michael@0:             // being pushed onto the stack. Since the 68k is big endian, we
michael@0:             // need to skip over the leading high order bytes.
michael@0:             case nsXPTType::T_I8     : dp->val.i8  = *(((int8_t*) ap) + 3);  break;
michael@0:             case nsXPTType::T_I16    : dp->val.i16 = *(((int16_t*) ap) + 1); break;
michael@0:             case nsXPTType::T_I32    : dp->val.i32 = *((int32_t*) ap);       break;
michael@0:             case nsXPTType::T_I64    : dp->val.i64 = *((int64_t*) ap); ap++; break;
michael@0:             case nsXPTType::T_U8     : dp->val.u8  = *(((uint8_t*) ap) + 3); break;
michael@0:             case nsXPTType::T_U16    : dp->val.u16 = *(((uint16_t*)ap) + 1); break;
michael@0:             case nsXPTType::T_U32    : dp->val.u32 = *((uint32_t*)ap);       break;
michael@0:             case nsXPTType::T_U64    : dp->val.u64 = *((uint64_t*)ap); ap++; break;
michael@0:             case nsXPTType::T_FLOAT  : dp->val.f   = *((float*)   ap);       break;
michael@0:             case nsXPTType::T_DOUBLE : dp->val.d   = *((double*)  ap); ap++; break;
michael@0:             case nsXPTType::T_BOOL   : dp->val.b   = *(((char*)   ap) + 3);  break;
michael@0:             case nsXPTType::T_CHAR   : dp->val.c   = *(((char*)   ap) + 3);  break;
michael@0:             // wchar_t is an int (32 bits) on NetBSD
michael@0:             case nsXPTType::T_WCHAR  : dp->val.wc  = *((wchar_t*) ap);       break;
michael@0:             default:
michael@0:                 NS_ERROR("bad type");
michael@0:                 break;
michael@0:             }
michael@0:         }
michael@0: 
michael@0:         result = self->CallMethod((uint16_t)methodIndex, info, dispatchParams);
michael@0: 
michael@0:         NS_RELEASE(iface_info);
michael@0: 
michael@0:         if(dispatchParams != paramBuffer)
michael@0:             delete [] dispatchParams;
michael@0: 
michael@0:         return result;
michael@0:     }
michael@0: }
michael@0: 
michael@0: #define STUB_ENTRY(n)							\
michael@0: __asm__(								\
michael@0:     ".global	_Stub"#n"__14nsXPTCStubBase\n\t"			\
michael@0: "_Stub"#n"__14nsXPTCStubBase:\n\t"					\
michael@0:     "link  a6,#0			\n\t"				\
michael@0:     "lea   a6@(12), a0			\n\t"	/* pointer to args */	\
michael@0:     "movl  a0, sp@-			\n\t"				\
michael@0:     "movl  #"#n", sp@-			\n\t"	/* method index */	\
michael@0:     "movl  a6@(8), sp@-			\n\t"	/* this */		\
michael@0:     "jbsr  _PrepareAndDispatch		\n\t"				\
michael@0:     "unlk  a6				\n\t"				\
michael@0:     "rts				\n\t"				\
michael@0: );
michael@0: 
michael@0: #define SENTINEL_ENTRY(n) \
michael@0: nsresult nsXPTCStubBase::Sentinel##n() \
michael@0: { \
michael@0:     NS_ERROR("nsXPTCStubBase::Sentinel called"); \
michael@0:     return NS_ERROR_NOT_IMPLEMENTED; \
michael@0: }
michael@0: 
michael@0: #include "xptcstubsdef.inc"