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xpcom/reflect/xptcall/src/md/win32/xptcstubs_x86_64.cpp@b8a032363ba2 (annotated)

xpcom/reflect/xptcall/src/md/win32/xptcstubs_x86_64.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 22 Jan 2015 13:21:57 +0100
branch
TOR_BUG_9701
changeset 15
b8a032363ba2
permissions
-rw-r--r--

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

michael@0 1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0 2 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 /* Implement shared vtbl methods. */
michael@0 7
michael@0 8 #include "xptcprivate.h"
michael@0 9 #include "xptiprivate.h"
michael@0 10
michael@0 11 /*
michael@0 12 * This is for Windows XP 64-Bit Edition / Server 2003 for AMD64 or later.
michael@0 13 */
michael@0 14
michael@0 15 extern "C" nsresult
michael@0 16 PrepareAndDispatch(nsXPTCStubBase* self, uint32_t methodIndex, uint64_t* args,
michael@0 17 uint64_t *gprData, double *fprData)
michael@0 18 {
michael@0 19 #define PARAM_BUFFER_COUNT 16
michael@0 20 //
michael@0 21 // "this" pointer is first parameter, so parameter count is 3.
michael@0 22 //
michael@0 23 #define PARAM_GPR_COUNT 3
michael@0 24 #define PARAM_FPR_COUNT 3
michael@0 25
michael@0 26 nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
michael@0 27 nsXPTCMiniVariant* dispatchParams = nullptr;
michael@0 28 const nsXPTMethodInfo* info = nullptr;
michael@0 29 uint8_t paramCount;
michael@0 30 uint8_t i;
michael@0 31 nsresult result = NS_ERROR_FAILURE;
michael@0 32
michael@0 33 NS_ASSERTION(self,"no self");
michael@0 34
michael@0 35 self->mEntry->GetMethodInfo(uint16_t(methodIndex), &info);
michael@0 36 NS_ASSERTION(info,"no method info");
michael@0 37
michael@0 38 paramCount = info->GetParamCount();
michael@0 39
michael@0 40 //
michael@0 41 // setup variant array pointer
michael@0 42 //
michael@0 43
michael@0 44 if(paramCount > PARAM_BUFFER_COUNT)
michael@0 45 dispatchParams = new nsXPTCMiniVariant[paramCount];
michael@0 46 else
michael@0 47 dispatchParams = paramBuffer;
michael@0 48
michael@0 49 NS_ASSERTION(dispatchParams,"no place for params");
michael@0 50
michael@0 51 uint64_t* ap = args;
michael@0 52 uint32_t iCount = 0;
michael@0 53
michael@0 54 for(i = 0; i < paramCount; i++)
michael@0 55 {
michael@0 56 const nsXPTParamInfo& param = info->GetParam(i);
michael@0 57 const nsXPTType& type = param.GetType();
michael@0 58 nsXPTCMiniVariant* dp = &dispatchParams[i];
michael@0 59
michael@0 60 if(param.IsOut() || !type.IsArithmetic())
michael@0 61 {
michael@0 62 if (iCount < PARAM_GPR_COUNT)
michael@0 63 dp->val.p = (void*)gprData[iCount++];
michael@0 64 else
michael@0 65 dp->val.p = (void*)*ap++;
michael@0 66
michael@0 67 continue;
michael@0 68 }
michael@0 69 // else
michael@0 70 switch(type)
michael@0 71 {
michael@0 72 case nsXPTType::T_I8:
michael@0 73 if (iCount < PARAM_GPR_COUNT)
michael@0 74 dp->val.i8 = (int8_t)gprData[iCount++];
michael@0 75 else
michael@0 76 dp->val.i8 = *((int8_t*)ap++);
michael@0 77 break;
michael@0 78
michael@0 79 case nsXPTType::T_I16:
michael@0 80 if (iCount < PARAM_GPR_COUNT)
michael@0 81 dp->val.i16 = (int16_t)gprData[iCount++];
michael@0 82 else
michael@0 83 dp->val.i16 = *((int16_t*)ap++);
michael@0 84 break;
michael@0 85
michael@0 86 case nsXPTType::T_I32:
michael@0 87 if (iCount < PARAM_GPR_COUNT)
michael@0 88 dp->val.i32 = (int32_t)gprData[iCount++];
michael@0 89 else
michael@0 90 dp->val.i32 = *((int32_t*)ap++);
michael@0 91 break;
michael@0 92
michael@0 93 case nsXPTType::T_I64:
michael@0 94 if (iCount < PARAM_GPR_COUNT)
michael@0 95 dp->val.i64 = (int64_t)gprData[iCount++];
michael@0 96 else
michael@0 97 dp->val.i64 = *((int64_t*)ap++);
michael@0 98 break;
michael@0 99
michael@0 100 case nsXPTType::T_U8:
michael@0 101 if (iCount < PARAM_GPR_COUNT)
michael@0 102 dp->val.u8 = (uint8_t)gprData[iCount++];
michael@0 103 else
michael@0 104 dp->val.u8 = *((uint8_t*)ap++);
michael@0 105 break;
michael@0 106
michael@0 107 case nsXPTType::T_U16:
michael@0 108 if (iCount < PARAM_GPR_COUNT)
michael@0 109 dp->val.u16 = (uint16_t)gprData[iCount++];
michael@0 110 else
michael@0 111 dp->val.u16 = *((uint16_t*)ap++);
michael@0 112 break;
michael@0 113
michael@0 114 case nsXPTType::T_U32:
michael@0 115 if (iCount < PARAM_GPR_COUNT)
michael@0 116 dp->val.u32 = (uint32_t)gprData[iCount++];
michael@0 117 else
michael@0 118 dp->val.u32 = *((uint32_t*)ap++);
michael@0 119 break;
michael@0 120
michael@0 121 case nsXPTType::T_U64:
michael@0 122 if (iCount < PARAM_GPR_COUNT)
michael@0 123 dp->val.u64 = (uint64_t)gprData[iCount++];
michael@0 124 else
michael@0 125 dp->val.u64 = *((uint64_t*)ap++);
michael@0 126 break;
michael@0 127
michael@0 128 case nsXPTType::T_FLOAT:
michael@0 129 if (iCount < PARAM_FPR_COUNT)
michael@0 130 // The value in xmm register is already prepared to
michael@0 131 // be retrieved as a float. Therefore, we pass the
michael@0 132 // value verbatim, as a double without conversion.
michael@0 133 dp->val.d = (double)fprData[iCount++];
michael@0 134 else
michael@0 135 dp->val.f = *((float*)ap++);
michael@0 136 break;
michael@0 137
michael@0 138 case nsXPTType::T_DOUBLE:
michael@0 139 if (iCount < PARAM_FPR_COUNT)
michael@0 140 dp->val.d = (double)fprData[iCount++];
michael@0 141 else
michael@0 142 dp->val.d = *((double*)ap++);
michael@0 143 break;
michael@0 144
michael@0 145 case nsXPTType::T_BOOL:
michael@0 146 if (iCount < PARAM_GPR_COUNT)
michael@0 147 // We need cast to uint8_t to remove garbage on upper 56-bit
michael@0 148 // at first.
michael@0 149 dp->val.b = (bool)(uint8_t)gprData[iCount++];
michael@0 150 else
michael@0 151 dp->val.b = *((bool*)ap++);
michael@0 152 break;
michael@0 153
michael@0 154 case nsXPTType::T_CHAR:
michael@0 155 if (iCount < PARAM_GPR_COUNT)
michael@0 156 dp->val.c = (char)gprData[iCount++];
michael@0 157 else
michael@0 158 dp->val.c = *((char*)ap++);
michael@0 159 break;
michael@0 160
michael@0 161 case nsXPTType::T_WCHAR:
michael@0 162 if (iCount < PARAM_GPR_COUNT)
michael@0 163 dp->val.wc = (wchar_t)gprData[iCount++];
michael@0 164 else
michael@0 165 dp->val.wc = *((wchar_t*)ap++);
michael@0 166 break;
michael@0 167
michael@0 168 default:
michael@0 169 NS_ERROR("bad type");
michael@0 170 break;
michael@0 171 }
michael@0 172 }
michael@0 173
michael@0 174 result = self->mOuter->CallMethod((uint16_t)methodIndex, info, dispatchParams);
michael@0 175
michael@0 176 if(dispatchParams != paramBuffer)
michael@0 177 delete [] dispatchParams;
michael@0 178
michael@0 179 return result;
michael@0 180 }
michael@0 181
michael@0 182 #define STUB_ENTRY(n) /* defined in the assembly file */
michael@0 183
michael@0 184 #define SENTINEL_ENTRY(n) \
michael@0 185 nsresult nsXPTCStubBase::Sentinel##n() \
michael@0 186 { \
michael@0 187 NS_ERROR("nsXPTCStubBase::Sentinel called"); \
michael@0 188 return NS_ERROR_NOT_IMPLEMENTED; \
michael@0 189 }
michael@0 190
michael@0 191 #include "xptcstubsdef.inc"
michael@0 192
michael@0 193 void
michael@0 194 xptc_dummy()
michael@0 195 {
michael@0 196 }
michael@0 197

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