1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5
6 /* Implement shared vtbl methods. */
7
8 #include "xptcprivate.h"
9
10 #if defined(sparc) || defined(__sparc__)
11
12 extern "C" nsresult ATTRIBUTE_USED
PrepareAndDispatch(nsXPTCStubBase * self,uint32_t methodIndex,uint32_t * args)13 PrepareAndDispatch(nsXPTCStubBase* self, uint32_t methodIndex, uint32_t* args)
14 {
15
16 typedef struct {
17 uint32_t hi;
18 uint32_t lo;
19 } DU; // have to move 64 bit entities as 32 bit halves since
20 // stack slots are not guaranteed 16 byte aligned
21
22 #define PARAM_BUFFER_COUNT 16
23
24 nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
25 nsXPTCMiniVariant* dispatchParams = nullptr;
26 const nsXPTInterfaceInfo* iface_info = nullptr;
27 const nsXPTMethodInfo* info;
28 uint8_t paramCount;
29 uint8_t i;
30
31 NS_ASSERTION(self,"no self");
32
33 self->GetInterfaceInfo(&iface_info);
34 NS_ASSERTION(iface_info,"no interface info");
35
36 iface_info->GetMethodInfo(uint16_t(methodIndex), &info);
37 NS_ASSERTION(info,"no interface info");
38
39 paramCount = info->GetParamCount();
40
41 // setup variant array pointer
42 if(paramCount > PARAM_BUFFER_COUNT)
43 dispatchParams = new nsXPTCMiniVariant[paramCount];
44 else
45 dispatchParams = paramBuffer;
46 NS_ASSERTION(dispatchParams,"no place for params");
47
48 uint32_t* ap = args;
49 for(i = 0; i < paramCount; i++, ap++)
50 {
51 const nsXPTParamInfo& param = info->GetParam(i);
52 const nsXPTType& type = param.GetType();
53 nsXPTCMiniVariant* dp = &dispatchParams[i];
54
55 if(param.IsOut() || !type.IsArithmetic())
56 {
57 if (type == nsXPTType::T_JSVAL)
58 dp->val.p = *((void**) *ap);
59 else
60 dp->val.p = (void*) *ap;
61 continue;
62 }
63 // else
64 switch(type)
65 {
66 case nsXPTType::T_I8 : dp->val.i8 = *((int32_t*) ap); break;
67 case nsXPTType::T_I16 : dp->val.i16 = *((int32_t*) ap); break;
68 case nsXPTType::T_I32 : dp->val.i32 = *((int32_t*) ap); break;
69 case nsXPTType::T_DOUBLE :
70 case nsXPTType::T_U64 :
71 case nsXPTType::T_I64 : ((DU *)dp)->hi = ((DU *)ap)->hi;
72 ((DU *)dp)->lo = ((DU *)ap)->lo;
73 ap++;
74 break;
75 case nsXPTType::T_U8 : dp->val.u8 = *((uint32_t*)ap); break;
76 case nsXPTType::T_U16 : dp->val.u16 = *((uint32_t*)ap); break;
77 case nsXPTType::T_U32 : dp->val.u32 = *((uint32_t*)ap); break;
78 case nsXPTType::T_FLOAT : dp->val.f = *((float*) ap); break;
79 case nsXPTType::T_BOOL : dp->val.b = *((uint32_t*)ap); break;
80 case nsXPTType::T_CHAR : dp->val.c = *((uint32_t*)ap); break;
81 case nsXPTType::T_WCHAR : dp->val.wc = *((int32_t*) ap); break;
82 default:
83 NS_ERROR("bad type");
84 break;
85 }
86 }
87
88 nsresult result = self->CallMethod((uint16_t)methodIndex, info,
89 dispatchParams);
90
91 if(dispatchParams != paramBuffer)
92 delete [] dispatchParams;
93
94 return result;
95 }
96
97 extern "C" nsresult SharedStub(int, int*);
98
99 #define STUB_ENTRY(n) \
100 nsresult nsXPTCStubBase::Stub##n() \
101 { \
102 int dummy; /* defeat tail-call optimization */ \
103 return SharedStub(n, &dummy); \
104 }
105
106 #define SENTINEL_ENTRY(n) \
107 nsresult nsXPTCStubBase::Sentinel##n() \
108 { \
109 NS_ERROR("nsXPTCStubBase::Sentinel called"); \
110 return NS_ERROR_NOT_IMPLEMENTED; \
111 }
112
113 #include "xptcstubsdef.inc"
114
115 #endif /* sparc || __sparc__ */
116