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: #include "xptiprivate.h"
michael@0: #include "xptc_gcc_x86_unix.h"
michael@0: 
michael@0: extern "C" {
michael@0: static nsresult ATTRIBUTE_USED
michael@0: __attribute__ ((regparm (3)))
michael@0: PrepareAndDispatch(uint32_t methodIndex, nsXPTCStubBase* self, 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:     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->mEntry->GetMethodInfo(uint16_t(methodIndex), &info);
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:         // else
michael@0: 	    dp->val.p = (void*) *ap;
michael@0:         switch(type)
michael@0:         {
michael@0:         case nsXPTType::T_I64    : dp->val.i64 = *((int64_t*) ap); ap++; break;
michael@0:         case nsXPTType::T_U64    : dp->val.u64 = *((uint64_t*)ap); ap++; break;
michael@0:         case nsXPTType::T_DOUBLE : dp->val.d   = *((double*)  ap); ap++; break;
michael@0:         }
michael@0:     }
michael@0: 
michael@0:     result = self->mOuter->CallMethod((uint16_t)methodIndex, info, dispatchParams);
michael@0: 
michael@0:     if(dispatchParams != paramBuffer)
michael@0:         delete [] dispatchParams;
michael@0: 
michael@0:     return result;
michael@0: }
michael@0: } // extern "C"
michael@0: 
michael@0: #if !defined(XP_MACOSX)
michael@0: 
michael@0: #define STUB_HEADER(a, b) ".hidden " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase" #a "Stub" #b "Ev\n\t" \
michael@0:                           ".type   " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase" #a "Stub" #b "Ev,@function\n"
michael@0: 
michael@0: #define STUB_SIZE(a, b)  ".size        " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase" #a "Stub" #b "Ev,.-" SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase" #a "Stub" #b "Ev\n\t"
michael@0: 
michael@0: #else
michael@0: 
michael@0: #define STUB_HEADER(a, b)
michael@0: #define STUB_SIZE(a, b)
michael@0: 
michael@0: #endif
michael@0: 
michael@0: // gcc3 mangling tends to insert the length of the method name
michael@0: #define STUB_ENTRY(n) \
michael@0: asm(".text\n\t" \
michael@0:     ".align	2\n\t" \
michael@0:     ".if	" #n " < 10\n\t" \
michael@0:     ".globl	" SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase5Stub" #n "Ev\n\t" \
michael@0:     STUB_HEADER(5, n)                                                   \
michael@0:     SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase5Stub" #n "Ev:\n\t" \
michael@0:     ".elseif	" #n " < 100\n\t" \
michael@0:     ".globl	" SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase6Stub" #n "Ev\n\t" \
michael@0:     STUB_HEADER(6, n)                                                   \
michael@0:     SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase6Stub" #n "Ev:\n\t" \
michael@0:     ".elseif    " #n " < 1000\n\t" \
michael@0:     ".globl     " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase7Stub" #n "Ev\n\t" \
michael@0:     STUB_HEADER(7, n)                                                   \
michael@0:     SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase7Stub" #n "Ev:\n\t" \
michael@0:     ".else\n\t" \
michael@0:     ".err	\"stub number " #n " >= 1000 not yet supported\"\n\t" \
michael@0:     ".endif\n\t" \
michael@0:     "movl	$" #n ", %eax\n\t" \
michael@0:     "jmp	" SYMBOL_UNDERSCORE "SharedStub\n\t" \
michael@0:     ".if	" #n " < 10\n\t" \
michael@0:     STUB_SIZE(5, n) \
michael@0:     ".elseif	" #n " < 100\n\t" \
michael@0:     STUB_SIZE(6, n) \
michael@0:     ".else\n\t" \
michael@0:     STUB_SIZE(7, n) \
michael@0:     ".endif");
michael@0: 
michael@0: // static nsresult SharedStub(uint32_t methodIndex) __attribute__((regparm(1)))
michael@0: asm(".text\n\t"
michael@0:     ".align	2\n\t"
michael@0: #if !defined(XP_MACOSX)
michael@0:     ".type	" SYMBOL_UNDERSCORE "SharedStub,@function\n\t"
michael@0: #endif
michael@0:     SYMBOL_UNDERSCORE "SharedStub:\n\t"
michael@0:     "leal	0x08(%esp), %ecx\n\t"
michael@0:     "movl	0x04(%esp), %edx\n\t"
michael@0:     "jmp	" SYMBOL_UNDERSCORE "PrepareAndDispatch\n\t"
michael@0: #if !defined(XP_MACOSX)
michael@0:     ".size	" SYMBOL_UNDERSCORE "SharedStub,.-" SYMBOL_UNDERSCORE "SharedStub"
michael@0: #endif
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"
michael@0: 
michael@0: void
michael@0: xptc_dummy()
michael@0: {
michael@0: }