1 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
2 * Version: MPL 1.1
3 *
4 * This Source Code Form is subject to the terms of the Mozilla Public
5 * License, v. 2.0. If a copy of the MPL was not distributed with this
6 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
7
8 #include "xptcprivate.h"
9
10 #include <stdint.h>
11
12 /*
13 * This is for MIPS O32 ABI
14 * Args contains a0-3 and then the stack.
15 * Because a0 is 'this', we want to skip it
16 */
17 extern "C" nsresult ATTRIBUTE_USED
PrepareAndDispatch(nsXPTCStubBase * self,uint32_t methodIndex,uint32_t * args)18 PrepareAndDispatch(nsXPTCStubBase* self, uint32_t methodIndex, uint32_t* args)
19 {
20 args++; // always skip over a0
21
22 #define PARAM_BUFFER_COUNT 16
23
24 nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
25 nsXPTCMiniVariant* dispatchParams = nullptr;
26 const nsXPTMethodInfo* info;
27 uint8_t paramCount;
28 uint8_t i;
29
30 NS_ASSERTION(self,"no self");
31
32 self->mEntry->GetMethodInfo(uint16_t(methodIndex), &info);
33 NS_ASSERTION(info,"no method info");
34
35 paramCount = info->GetParamCount();
36
37 // setup variant array pointer
38 if(paramCount > PARAM_BUFFER_COUNT)
39 dispatchParams = new nsXPTCMiniVariant[paramCount];
40 else
41 dispatchParams = paramBuffer;
42 NS_ASSERTION(dispatchParams,"no place for params");
43
44 const uint8_t indexOfJSContext = info->IndexOfJSContext();
45
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];
52
53 if (i == indexOfJSContext)
54 ap++;
55
56 if(param.IsOut() || !type.IsArithmetic())
57 {
58 dp->val.p = (void*) *ap;
59 continue;
60 }
61
62 switch(type)
63 {
64 case nsXPTType::T_I64 :
65 if ((intptr_t)ap & 4) ap++;
66 dp->val.i64 = *((int64_t*) ap); ap++;
67 break;
68 case nsXPTType::T_U64 :
69 if ((intptr_t)ap & 4) ap++;
70 dp->val.u64 = *((int64_t*) ap); ap++;
71 break;
72 case nsXPTType::T_DOUBLE:
73 if ((intptr_t)ap & 4) ap++;
74 dp->val.d = *((double*) ap); ap++;
75 break;
76 #ifdef IS_LITTLE_ENDIAN
77 default:
78 dp->val.p = (void*) *ap;
79 break;
80 #else
81 case nsXPTType::T_I8 : dp->val.i8 = (int8_t) *ap; break;
82 case nsXPTType::T_I16 : dp->val.i16 = (int16_t) *ap; break;
83 case nsXPTType::T_I32 : dp->val.i32 = (int32_t) *ap; break;
84 case nsXPTType::T_U8 : dp->val.u8 = (uint8_t) *ap; break;
85 case nsXPTType::T_U16 : dp->val.u16 = (uint16_t) *ap; break;
86 case nsXPTType::T_U32 : dp->val.u32 = (uint32_t) *ap; break;
87 case nsXPTType::T_BOOL : dp->val.b = (bool) *ap; break;
88 case nsXPTType::T_CHAR : dp->val.c = (char) *ap; break;
89 case nsXPTType::T_WCHAR : dp->val.wc = (wchar_t) *ap; break;
90 case nsXPTType::T_FLOAT : dp->val.f = *(float *) ap; break;
91 default:
92 NS_ASSERTION(0, "bad type");
93 break;
94 #endif
95 }
96 }
97
98 nsresult result = self->mOuter->CallMethod((uint16_t)methodIndex, info,
99 dispatchParams);
100
101 if(dispatchParams != paramBuffer)
102 delete [] dispatchParams;
103
104 return result;
105 }
106
107 #define STUB_ENTRY(n) // done in the .s file
108
109 #define SENTINEL_ENTRY(n) \
110 nsresult nsXPTCStubBase::Sentinel##n() \
111 { \
112 NS_ERROR("nsXPTCStubBase::Sentinel called"); \
113 return NS_ERROR_NOT_IMPLEMENTED; \
114 }
115
116 #include "xptcstubsdef.inc"
117