зеркало из https://github.com/mozilla/gecko-dev.git
100 строки
3.1 KiB
C++
100 строки
3.1 KiB
C++
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* Version: MPL 1.1
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* This code is for MIPS using the O32 ABI. */
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/* Platform specific code to invoke XPCOM methods on native objects */
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#include "xptcprivate.h"
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#include <stdint.h>
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extern "C" uint32_t
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invoke_count_words(uint32_t paramCount, nsXPTCVariant* s)
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{
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// Count a word for a0 even though it's never stored or loaded
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// We do this only for alignment of register pairs.
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uint32_t result = 1;
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for (uint32_t i = 0; i < paramCount; i++, result++, s++)
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{
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if (s->IsPtrData())
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continue;
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switch(s->type)
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{
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case nsXPTType::T_I64 :
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case nsXPTType::T_U64 :
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case nsXPTType::T_DOUBLE :
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if (result & 1)
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result++;
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result++;
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break;
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default:
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break;
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}
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}
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return (result + 1) & ~(uint32_t)1;
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}
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extern "C" void
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invoke_copy_to_stack(uint32_t* d, uint32_t paramCount,
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nsXPTCVariant* s)
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{
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// Skip the unused a0 slot, which we keep only for register pair alignment.
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d++;
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for (uint32_t i = 0; i < paramCount; i++, d++, s++)
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{
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if (s->IsPtrData())
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{
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*((void**)d) = s->ptr;
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continue;
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}
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switch(s->type)
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{
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case nsXPTType::T_I8 : *d = (uint32_t) s->val.i8; break;
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case nsXPTType::T_I16 : *d = (uint32_t) s->val.i16; break;
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case nsXPTType::T_I32 : *d = (uint32_t) s->val.i32; break;
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case nsXPTType::T_I64 :
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if ((intptr_t)d & 4) d++;
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*((int64_t*) d) = s->val.i64; d++;
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break;
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case nsXPTType::T_U8 : *d = (uint32_t) s->val.u8; break;
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case nsXPTType::T_U16 : *d = (uint32_t) s->val.u16; break;
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case nsXPTType::T_U32 : *d = (uint32_t) s->val.u32; break;
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case nsXPTType::T_U64 :
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if ((intptr_t)d & 4) d++;
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*((uint64_t*) d) = s->val.u64; d++;
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break;
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case nsXPTType::T_FLOAT : *((float*) d) = s->val.f; break;
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case nsXPTType::T_DOUBLE :
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if ((intptr_t)d & 4) d++;
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*((double*) d) = s->val.d; d++;
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break;
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case nsXPTType::T_BOOL : *d = (bool) s->val.b; break;
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case nsXPTType::T_CHAR : *d = (char) s->val.c; break;
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case nsXPTType::T_WCHAR : *d = (wchar_t) s->val.wc; break;
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default:
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*((void**)d) = s->val.p;
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break;
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}
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}
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}
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extern "C" nsresult _NS_InvokeByIndex(nsISupports* that, uint32_t methodIndex,
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uint32_t paramCount,
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nsXPTCVariant* params);
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EXPORT_XPCOM_API(nsresult)
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NS_InvokeByIndex(nsISupports* that, uint32_t methodIndex,
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uint32_t paramCount, nsXPTCVariant* params)
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{
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return _NS_InvokeByIndex(that, methodIndex, paramCount, params);
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}
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