1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* Implement shared vtbl methods. */
#include "xptcprivate.h"
nsresult ATTRIBUTE_USED
PrepareAndDispatch(nsXPTCStubBase* self, uint32_t methodIndex, uint32_t* args)
{
#define PARAM_BUFFER_COUNT 16
nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
nsXPTCMiniVariant* dispatchParams = nullptr;
nsIInterfaceInfo* iface_info = nullptr;
const nsXPTMethodInfo* info;
uint8_t paramCount;
uint8_t i;
nsresult result = NS_ERROR_FAILURE;
NS_ASSERTION(self,"no self");
self->GetInterfaceInfo(&iface_info);
NS_ASSERTION(iface_info,"no interface info");
iface_info->GetMethodInfo(uint16_t(methodIndex), &info);
NS_ASSERTION(info,"no interface info");
paramCount = info->GetParamCount();
// setup variant array pointer
if(paramCount > PARAM_BUFFER_COUNT)
dispatchParams = new nsXPTCMiniVariant[paramCount];
else
dispatchParams = paramBuffer;
NS_ASSERTION(dispatchParams,"no place for params");
uint32_t* ap = args;
for(i = 0; i < paramCount; i++, ap++)
{
const nsXPTParamInfo& param = info->GetParam(i);
const nsXPTType& type = param.GetType();
nsXPTCMiniVariant* dp = &dispatchParams[i];
if(param.IsOut() || !type.IsArithmetic())
{
dp->val.p = (void*) *ap;
continue;
}
// else
switch(type)
{
case nsXPTType::T_I8 : dp->val.i8 = *((int8_t*) ap); break;
case nsXPTType::T_I16 : dp->val.i16 = *((int16_t*) ap); break;
case nsXPTType::T_I32 : dp->val.i32 = *((int32_t*) ap); break;
case nsXPTType::T_I64 : dp->val.i64 = *((int64_t*) ap); ap++; break;
case nsXPTType::T_U8 : dp->val.u8 = *((uint8_t*) ap); break;
case nsXPTType::T_U16 : dp->val.u16 = *((uint16_t*)ap); break;
case nsXPTType::T_U32 : dp->val.u32 = *((uint32_t*)ap); break;
case nsXPTType::T_U64 : dp->val.u64 = *((uint64_t*)ap); ap++; break;
case nsXPTType::T_FLOAT : dp->val.f = *((float*) ap); break;
case nsXPTType::T_DOUBLE : dp->val.d = *((double*) ap); ap++; break;
case nsXPTType::T_BOOL : dp->val.b = *((bool*) ap); break;
case nsXPTType::T_CHAR : dp->val.c = *((char*) ap); break;
case nsXPTType::T_WCHAR : dp->val.wc = *((wchar_t*) ap); break;
default:
NS_ERROR("bad type");
break;
}
}
result = self->CallMethod((uint16_t)methodIndex, info, dispatchParams);
NS_RELEASE(iface_info);
if(dispatchParams != paramBuffer)
delete [] dispatchParams;
return result;
}
/*
* These stubs move just move the values passed in registers onto the stack,
* so they are contiguous with values passed on the stack, and then calls
* PrepareAndDispatch() to do the dirty work.
*/
#define STUB_ENTRY(n) \
__asm__( \
".global _Stub"#n"__14nsXPTCStubBase\n\t" \
"_Stub"#n"__14nsXPTCStubBase:\n\t" \
"stmfd sp!, {r1, r2, r3} \n\t" \
"mov ip, sp \n\t" \
"stmfd sp!, {fp, ip, lr, pc} \n\t" \
"sub fp, ip, #4 \n\t" \
"mov r1, #"#n" \n\t" /* = methodIndex */ \
"add r2, sp, #16 \n\t" \
"bl _PrepareAndDispatch__FP14nsXPTCStubBaseUiPUi \n\t" \
"ldmea fp, {fp, sp, lr} \n\t" \
"add sp, sp, #12 \n\t" \
"mov pc, lr \n\t" \
);
#define SENTINEL_ENTRY(n) \
nsresult nsXPTCStubBase::Sentinel##n() \
{ \
NS_ERROR("nsXPTCStubBase::Sentinel called"); \
return NS_ERROR_NOT_IMPLEMENTED; \
}
#include "xptcstubsdef.inc"
|
