1 : /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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15 : * The Original Code is mozilla.org code.
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17 : * The Initial Developer of the Original Code is
18 : * Netscape Communications Corporation.
19 : * Portions created by the Initial Developer are Copyright (C) 1999
20 : * the Initial Developer. All Rights Reserved.
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36 : * ***** END LICENSE BLOCK ***** */
37 :
38 : /* Implement shared vtbl methods. */
39 :
40 : #include "xptcprivate.h"
41 : #include "xptiprivate.h"
42 : #include "xptc_gcc_x86_unix.h"
43 :
44 : extern "C" {
45 : static nsresult ATTRIBUTE_USED
46 : __attribute__ ((regparm (3)))
47 1225639 : PrepareAndDispatch(uint32 methodIndex, nsXPTCStubBase* self, PRUint32* args)
48 : {
49 : #define PARAM_BUFFER_COUNT 16
50 :
51 : nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
52 1225639 : nsXPTCMiniVariant* dispatchParams = NULL;
53 : const nsXPTMethodInfo* info;
54 : PRUint8 paramCount;
55 : PRUint8 i;
56 1225639 : nsresult result = NS_ERROR_FAILURE;
57 :
58 1225639 : NS_ASSERTION(self,"no self");
59 :
60 1225639 : self->mEntry->GetMethodInfo(PRUint16(methodIndex), &info);
61 1225639 : paramCount = info->GetParamCount();
62 :
63 : // setup variant array pointer
64 1225639 : if(paramCount > PARAM_BUFFER_COUNT)
65 0 : dispatchParams = new nsXPTCMiniVariant[paramCount];
66 : else
67 1225639 : dispatchParams = paramBuffer;
68 1225639 : NS_ASSERTION(dispatchParams,"no place for params");
69 :
70 1225639 : PRUint32* ap = args;
71 2964023 : for(i = 0; i < paramCount; i++, ap++)
72 : {
73 1738384 : const nsXPTParamInfo& param = info->GetParam(i);
74 1738384 : const nsXPTType& type = param.GetType();
75 1738384 : nsXPTCMiniVariant* dp = &dispatchParams[i];
76 :
77 1738384 : if(param.IsOut() || !type.IsArithmetic())
78 : {
79 1638346 : dp->val.p = (void*) *ap;
80 1638346 : continue;
81 : }
82 : // else
83 100038 : dp->val.p = (void*) *ap;
84 100038 : switch(type)
85 : {
86 27284 : case nsXPTType::T_I64 : dp->val.i64 = *((PRInt64*) ap); ap++; break;
87 15808 : case nsXPTType::T_U64 : dp->val.u64 = *((PRUint64*)ap); ap++; break;
88 1 : case nsXPTType::T_DOUBLE : dp->val.d = *((double*) ap); ap++; break;
89 : }
90 : }
91 :
92 1225639 : result = self->mOuter->CallMethod((PRUint16)methodIndex, info, dispatchParams);
93 :
94 1225639 : if(dispatchParams != paramBuffer)
95 0 : delete [] dispatchParams;
96 :
97 1225639 : return result;
98 : }
99 : } // extern "C"
100 :
101 : #if !defined(XP_MACOSX)
102 :
103 : #define STUB_HEADER(a, b) ".hidden " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase" #a "Stub" #b "Ev\n\t" \
104 : ".type " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase" #a "Stub" #b "Ev,@function\n"
105 :
106 : #define STUB_SIZE(a, b) ".size " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase" #a "Stub" #b "Ev,.-" SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase" #a "Stub" #b "Ev\n\t"
107 :
108 : #else
109 :
110 : #define STUB_HEADER(a, b)
111 : #define STUB_SIZE(a, b)
112 :
113 : #endif
114 :
115 : // gcc3 mangling tends to insert the length of the method name
116 : #define STUB_ENTRY(n) \
117 : asm(".text\n\t" \
118 : ".align 2\n\t" \
119 : ".if " #n " < 10\n\t" \
120 : ".globl " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase5Stub" #n "Ev\n\t" \
121 : STUB_HEADER(5, n) \
122 : SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase5Stub" #n "Ev:\n\t" \
123 : ".elseif " #n " < 100\n\t" \
124 : ".globl " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase6Stub" #n "Ev\n\t" \
125 : STUB_HEADER(6, n) \
126 : SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase6Stub" #n "Ev:\n\t" \
127 : ".elseif " #n " < 1000\n\t" \
128 : ".globl " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase7Stub" #n "Ev\n\t" \
129 : STUB_HEADER(7, n) \
130 : SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase7Stub" #n "Ev:\n\t" \
131 : ".else\n\t" \
132 : ".err \"stub number " #n " >= 1000 not yet supported\"\n\t" \
133 : ".endif\n\t" \
134 : "movl $" #n ", %eax\n\t" \
135 : "jmp " SYMBOL_UNDERSCORE "SharedStub\n\t" \
136 : ".if " #n " < 10\n\t" \
137 : STUB_SIZE(5, n) \
138 : ".elseif " #n " < 100\n\t" \
139 : STUB_SIZE(6, n) \
140 : ".else\n\t" \
141 : STUB_SIZE(7, n) \
142 : ".endif");
143 :
144 : // static nsresult SharedStub(PRUint32 methodIndex) __attribute__((regparm(1)))
145 : asm(".text\n\t"
146 : ".align 2\n\t"
147 : #if !defined(XP_MACOSX)
148 : ".type " SYMBOL_UNDERSCORE "SharedStub,@function\n\t"
149 : #endif
150 : SYMBOL_UNDERSCORE "SharedStub:\n\t"
151 : "leal 0x08(%esp), %ecx\n\t"
152 : "movl 0x04(%esp), %edx\n\t"
153 : "jmp " SYMBOL_UNDERSCORE "PrepareAndDispatch\n\t"
154 : #if !defined(XP_MACOSX)
155 : ".size " SYMBOL_UNDERSCORE "SharedStub,.-" SYMBOL_UNDERSCORE "SharedStub"
156 : #endif
157 : );
158 :
159 : #define SENTINEL_ENTRY(n) \
160 : nsresult nsXPTCStubBase::Sentinel##n() \
161 : { \
162 : NS_ERROR("nsXPTCStubBase::Sentinel called"); \
163 : return NS_ERROR_NOT_IMPLEMENTED; \
164 : }
165 :
166 : #include "xptcstubsdef.inc"
167 :
168 : void
169 0 : xptc_dummy()
170 : {
171 0 : }
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