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
47 NS_ASSERTION(dispatchParams,"no place for params");
48
49 uint32_t* ap = args;
50 for(i = 0; i < paramCount; i++, ap++)
51 {
52 const nsXPTParamInfo& param = info->GetParam(i);
53 const nsXPTType& type = param.GetType();
54 nsXPTCMiniVariant* dp = &dispatchParams[i];
55
56 if(param.IsOut() || !type.IsArithmetic())
57 {
58 if (type == nsXPTType::T_JSVAL)
59 dp->val.p = *((void**) *ap);
60 else
61 dp->val.p = (void*) *ap;
62 continue;
63 }
64 // else
65 switch(type)
66 {
67 case nsXPTType::T_I8 : dp->val.i8 = *((int32_t*) ap); break;
68 case nsXPTType::T_I16 : dp->val.i16 = *((int32_t*) ap); break;
69 case nsXPTType::T_I32 : dp->val.i32 = *((int32_t*) ap); break;
70 case nsXPTType::T_DOUBLE :
71 case nsXPTType::T_U64 :
72 case nsXPTType::T_I64 : ((DU *)dp)->hi = ((DU *)ap)->hi;
73 ((DU *)dp)->lo = ((DU *)ap)->lo;
74 ap++;
75 break;
76 case nsXPTType::T_U8 : dp->val.u8 = *((uint32_t*)ap); break;
77 case nsXPTType::T_U16 : dp->val.u16 = *((uint32_t*)ap); break;
78 case nsXPTType::T_U32 : dp->val.u32 = *((uint32_t*)ap); break;
79 case nsXPTType::T_FLOAT : dp->val.f = *((float*) ap); break;
80 case nsXPTType::T_BOOL : dp->val.b = *((uint32_t*)ap); break;
81 case nsXPTType::T_CHAR : dp->val.c = *((uint32_t*)ap); break;
82 case nsXPTType::T_WCHAR : dp->val.wc = *((int32_t*) ap); break;
83 default:
84 NS_ERROR("bad type");
85 break;
86 }
87 }
88
89 nsresult result = self->CallMethod((uint16_t)methodIndex, info,
90 dispatchParams);
91
92 if(dispatchParams != paramBuffer)
93 delete [] dispatchParams;
94
95 return result;
96 }
97
98 extern "C" nsresult SharedStub(int, int*);
99
100 #define STUB_ENTRY(n) \
101 nsresult nsXPTCStubBase::Stub##n() \
102 { \
103 int dummy; /* defeat tail-call optimization */ \
104 return SharedStub(n, &dummy); \
105 }
106
107 #define SENTINEL_ENTRY(n) \
108 nsresult nsXPTCStubBase::Sentinel##n() \
109 { \
110 NS_ERROR("nsXPTCStubBase::Sentinel called"); \
111 return NS_ERROR_NOT_IMPLEMENTED; \
112 }
113
114 #include "xptcstubsdef.inc"
115
116 #endif /* sparc || __sparc__ */
117