0
|
1 |
// Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).
|
|
2 |
// All rights reserved.
|
|
3 |
// This component and the accompanying materials are made available
|
|
4 |
// under the terms of the License "Eclipse Public License v1.0"
|
|
5 |
// which accompanies this distribution, and is available
|
|
6 |
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
|
|
7 |
//
|
|
8 |
// Initial Contributors:
|
|
9 |
// Nokia Corporation - initial contribution.
|
|
10 |
//
|
|
11 |
// Contributors:
|
|
12 |
//
|
|
13 |
// Description:
|
|
14 |
// e32\euser\epoc\win32\uc_exec.cpp
|
|
15 |
//
|
|
16 |
//
|
|
17 |
|
|
18 |
#define __GEN_USER_EXEC_CODE__
|
|
19 |
|
|
20 |
#include "uc_std.h"
|
|
21 |
#include <e32svr.h>
|
|
22 |
#include <emulator.h>
|
|
23 |
|
|
24 |
typedef TInt (__fastcall *TDispatcher)(TInt, TInt*);
|
|
25 |
TInt __fastcall LazyDispatch(TInt aFunction, TInt* aArgs);
|
|
26 |
|
|
27 |
#pragma data_seg(".data2")
|
|
28 |
#ifdef __VC32__
|
|
29 |
#pragma bss_seg(".data2")
|
|
30 |
#endif
|
|
31 |
static TDispatcher TheDispatcher = &LazyDispatch;
|
|
32 |
#pragma data_seg()
|
|
33 |
#ifdef __VC32__
|
|
34 |
#pragma bss_seg()
|
|
35 |
#endif
|
|
36 |
|
|
37 |
TInt __fastcall LazyDispatch(TInt aFunction, TInt* aArgs)
|
|
38 |
{
|
|
39 |
HINSTANCE kernel = GetModuleHandleA("ekern.exe");
|
|
40 |
if (kernel)
|
|
41 |
{
|
|
42 |
TDispatcher dispatcher = (TDispatcher)Emulator::GetProcAddress(kernel, (LPCSTR)1);
|
|
43 |
if (dispatcher)
|
|
44 |
{
|
|
45 |
TheDispatcher = dispatcher;
|
|
46 |
return dispatcher(aFunction, aArgs);
|
|
47 |
}
|
|
48 |
}
|
|
49 |
ExitProcess(101);
|
|
50 |
return 0;
|
|
51 |
}
|
|
52 |
|
|
53 |
#include <u32exec.h>
|
|
54 |
|
|
55 |
/******************************************************************************
|
|
56 |
* Slow executive calls with preprocessing or extra arguments
|
|
57 |
******************************************************************************/
|
|
58 |
|
|
59 |
__NAKED__ TInt Exec::SessionSend(TInt /*aHandle*/, TInt /*aFunction*/, TAny* /*aPtr*/, TRequestStatus* /*aStatus*/)
|
|
60 |
//
|
|
61 |
// Send a blind message to the server.
|
|
62 |
//
|
|
63 |
{
|
|
64 |
__DISPATCH(EExecSessionSend|EXECUTIVE_SLOW)
|
|
65 |
}
|
|
66 |
|
|
67 |
__NAKED__ TInt Exec::SessionSendSync(TInt /*aHandle*/, TInt /*aFunction*/, TAny* /*aPtr*/, TRequestStatus* /*aStatus*/)
|
|
68 |
//
|
|
69 |
// Send a blind message to the server using thread's dedicated message slot.
|
|
70 |
//
|
|
71 |
{
|
|
72 |
__DISPATCH(EExecSessionSendSync|EXECUTIVE_SLOW)
|
|
73 |
}
|
|
74 |
|
|
75 |
|
|
76 |
__NAKED__ TInt Exec::MessageIpcCopy(TInt /*aHandle*/, TInt /*aParam*/, SIpcCopyInfo& /*aInfo*/, TInt /*anOffset*/)
|
|
77 |
//
|
|
78 |
// Perform a descriptor-to-descriptor IPC copy
|
|
79 |
//
|
|
80 |
{
|
|
81 |
|
|
82 |
__DISPATCH(EExecMessageIpcCopy|EXECUTIVE_SLOW)
|
|
83 |
}
|
|
84 |
|
|
85 |
__NAKED__ TInt Exec::BTraceOut(TUint32 /*a0*/, TUint32 /*a1*/, const BTrace::SExecExtension& /*aExtension*/, TInt /*aDataSize*/)
|
|
86 |
{
|
|
87 |
__DISPATCH(EExecBTraceOut|EXECUTIVE_SLOW)
|
|
88 |
}
|
|
89 |
|
|
90 |
__NAKED__ TInt Exec::BTraceOutBig(TUint32 /*a0*/, TUint32 /*a1*/, const BTrace::SExecExtension& /*aExtension*/, TInt /*aDataSize*/)
|
|
91 |
{
|
|
92 |
__DISPATCH(EExecBTraceOutBig|EXECUTIVE_SLOW)
|
|
93 |
}
|
|
94 |
|
|
95 |
__NAKED__ TInt Exec::UTraceOut(TUint32 /*a0*/, TUint32 /*a1*/, const BTrace::SExecExtension& /*aExtension*/, TInt /*aDataSize*/)
|
|
96 |
{
|
|
97 |
__DISPATCH(EExecUTraceOut|EXECUTIVE_SLOW)
|
|
98 |
}
|
|
99 |
|
|
100 |
EXPORT_C TBool BTrace::Out(TUint32 a0, TUint32 a1, TUint32 a2, TUint32 a3)
|
|
101 |
{
|
|
102 |
BTrace::SExecExtension ext;
|
|
103 |
ext.iA2 = a2;
|
|
104 |
ext.iA3 = a3;
|
|
105 |
ext.iPc = (&a0)[-1]; // return address on X86
|
|
106 |
return Exec::BTraceOut(a0,a1,ext,0);
|
|
107 |
}
|
|
108 |
|
|
109 |
EXPORT_C TBool BTrace::OutX(TUint32 a0, TUint32 a1, TUint32 a2, TUint32 a3)
|
|
110 |
{
|
|
111 |
BTrace::SExecExtension ext;
|
|
112 |
ext.iA2 = a2;
|
|
113 |
ext.iA3 = a3;
|
|
114 |
ext.iPc = (&a0)[-1]; // return address on X86
|
|
115 |
return Exec::BTraceOut(a0,a1,ext,0);
|
|
116 |
}
|
|
117 |
|
|
118 |
EXPORT_C TBool BTrace::OutN(TUint32 a0, TUint32 a1, TUint32 a2, const TAny* aData, TInt aDataSize)
|
|
119 |
{
|
|
120 |
BTrace::SExecExtension ext;
|
|
121 |
ext.iA2 = a2;
|
|
122 |
ext.iA3 = (TUint32)aData;
|
|
123 |
ext.iPc = (&a0)[-1]; // return address on X86
|
|
124 |
return Exec::BTraceOut(a0,a1,ext,aDataSize);
|
|
125 |
}
|
|
126 |
|
|
127 |
EXPORT_C TBool BTrace::OutNX(TUint32 a0, TUint32 a1, TUint32 a2, const TAny* aData, TInt aDataSize)
|
|
128 |
{
|
|
129 |
BTrace::SExecExtension ext;
|
|
130 |
ext.iA2 = a2;
|
|
131 |
ext.iA3 = (TUint32)aData;
|
|
132 |
ext.iPc = (&a0)[-1]; // return address on X86
|
|
133 |
return Exec::BTraceOut(a0,a1,ext,aDataSize);
|
|
134 |
}
|
|
135 |
|
|
136 |
EXPORT_C TBool BTrace::OutBig(TUint32 a0, TUint32 a1, const TAny* aData, TInt aDataSize)
|
|
137 |
{
|
|
138 |
BTrace::SExecExtension ext;
|
|
139 |
ext.iA2 = 0;
|
|
140 |
ext.iA3 = (TUint32)aData;
|
|
141 |
ext.iPc = (&a0)[-1]; // return address on X86
|
|
142 |
|
|
143 |
if((TUint)aDataSize>8u)
|
|
144 |
{
|
|
145 |
if((TUint)aDataSize>KMaxBTraceDataArray+4u)
|
|
146 |
return Exec::BTraceOutBig(a0,a1,ext,aDataSize);
|
|
147 |
a0 += 4;
|
|
148 |
aDataSize -= 4;
|
|
149 |
ext.iA2 = *((TUint32*&)aData)++;
|
|
150 |
ext.iA3 = (TUint32)aData;
|
|
151 |
return Exec::BTraceOut(a0,a1,ext,aDataSize);
|
|
152 |
}
|
|
153 |
|
|
154 |
if((TUint)aDataSize>4u)
|
|
155 |
ext.iA3 = ((TUint32*)aData)[1];
|
|
156 |
if(aDataSize)
|
|
157 |
ext.iA2 = ((TUint32*)aData)[0];
|
|
158 |
a0 += aDataSize;
|
|
159 |
aDataSize = 0;
|
|
160 |
return Exec::BTraceOut(a0,a1,ext,aDataSize);
|
|
161 |
}
|
|
162 |
|
|
163 |
EXPORT_C TBool BTrace::OutFiltered(TUint32 a0, TUint32 a1, TUint32 a2, TUint32 a3)
|
|
164 |
{
|
|
165 |
BTrace::SExecExtension ext;
|
|
166 |
a0 |= EMissingRecord<<BTrace::EFlagsIndex*8; // overload meaning of this flag to indicate filtered trace
|
|
167 |
ext.iA2 = a2;
|
|
168 |
ext.iA3 = a3;
|
|
169 |
ext.iPc = (&a0)[-1]; // return address on X86
|
|
170 |
return Exec::BTraceOut(a0,a1,ext,0);
|
|
171 |
}
|
|
172 |
|
|
173 |
EXPORT_C TBool BTrace::OutFilteredX(TUint32 a0, TUint32 a1, TUint32 a2, TUint32 a3)
|
|
174 |
{
|
|
175 |
BTrace::SExecExtension ext;
|
|
176 |
a0 |= EMissingRecord<<BTrace::EFlagsIndex*8; // overload meaning of this flag to indicate filtered trace
|
|
177 |
ext.iA2 = a2;
|
|
178 |
ext.iA3 = a3;
|
|
179 |
ext.iPc = (&a0)[-1]; // return address on X86
|
|
180 |
return Exec::BTraceOut(a0,a1,ext,0);
|
|
181 |
}
|
|
182 |
|
|
183 |
EXPORT_C TBool BTrace::OutFilteredN(TUint32 a0, TUint32 a1, TUint32 a2, const TAny* aData, TInt aDataSize)
|
|
184 |
{
|
|
185 |
BTrace::SExecExtension ext;
|
|
186 |
a0 |= EMissingRecord<<BTrace::EFlagsIndex*8; // overload meaning of this flag to indicate filtered trace
|
|
187 |
ext.iA2 = a2;
|
|
188 |
ext.iA3 = (TUint32)aData;
|
|
189 |
ext.iPc = (&a0)[-1]; // return address on X86
|
|
190 |
return Exec::BTraceOut(a0,a1,ext,aDataSize);
|
|
191 |
}
|
|
192 |
|
|
193 |
EXPORT_C TBool BTrace::OutFilteredNX(TUint32 a0, TUint32 a1, TUint32 a2, const TAny* aData, TInt aDataSize)
|
|
194 |
{
|
|
195 |
BTrace::SExecExtension ext;
|
|
196 |
a0 |= EMissingRecord<<BTrace::EFlagsIndex*8; // overload meaning of this flag to indicate filtered trace
|
|
197 |
ext.iA2 = a2;
|
|
198 |
ext.iA3 = (TUint32)aData;
|
|
199 |
ext.iPc = (&a0)[-1]; // return address on X86
|
|
200 |
return Exec::BTraceOut(a0,a1,ext,aDataSize);
|
|
201 |
}
|
|
202 |
|
|
203 |
EXPORT_C TBool BTrace::OutFilteredBig(TUint32 a0, TUint32 a1, const TAny* aData, TInt aDataSize)
|
|
204 |
{
|
|
205 |
BTrace::SExecExtension ext;
|
|
206 |
a0 |= EMissingRecord<<BTrace::EFlagsIndex*8; // overload meaning of this flag to indicate filtered trace
|
|
207 |
ext.iA2 = 0;
|
|
208 |
ext.iA3 = (TUint32)aData;
|
|
209 |
ext.iPc = (&a0)[-1]; // return address on X86
|
|
210 |
|
|
211 |
if((TUint)aDataSize>8u)
|
|
212 |
{
|
|
213 |
if((TUint)aDataSize>KMaxBTraceDataArray+4u)
|
|
214 |
return Exec::BTraceOutBig(a0,a1,ext,aDataSize);
|
|
215 |
a0 += 4;
|
|
216 |
aDataSize -= 4;
|
|
217 |
ext.iA2 = *((TUint32*&)aData)++;
|
|
218 |
ext.iA3 = (TUint32)aData;
|
|
219 |
return Exec::BTraceOut(a0,a1,ext,aDataSize);
|
|
220 |
}
|
|
221 |
|
|
222 |
if((TUint)aDataSize>4u)
|
|
223 |
ext.iA3 = ((TUint32*)aData)[1];
|
|
224 |
if(aDataSize)
|
|
225 |
ext.iA2 = ((TUint32*)aData)[0];
|
|
226 |
a0 += aDataSize;
|
|
227 |
aDataSize = 0;
|
|
228 |
return Exec::BTraceOut(a0,a1,ext,aDataSize);
|
|
229 |
}
|
|
230 |
|
|
231 |
EXPORT_C TBool BTrace::OutFilteredPcFormatBig(TUint32 aHeader, TUint32 aModuleUid, TUint32 aPc, TUint16 aFormatId, const TAny* aData, TInt aDataSize)
|
|
232 |
{
|
|
233 |
BTrace::SExecExtension ext;
|
|
234 |
aHeader |= EMissingRecord<<BTrace::EFlagsIndex*8; // overload meaning of this flag to indicate filtered trace
|
|
235 |
ext.iA2 = aFormatId;
|
|
236 |
ext.iA3 = (TUint32)aData;
|
|
237 |
ext.iPc = aPc;
|
|
238 |
|
|
239 |
if((TUint)aDataSize>KMaxBTraceDataArray)
|
|
240 |
return Exec::UTraceOut(aHeader,aModuleUid,ext,aDataSize);
|
|
241 |
aHeader += 4;
|
|
242 |
return Exec::BTraceOut(aHeader,aModuleUid,ext,aDataSize);
|
|
243 |
}
|
|
244 |
|
|
245 |
__NAKED__ void ExecRequestComplete(TInt /*aHandle*/, TRequestStatus*& /*aStatus*/, TInt /*aReason*/)
|
|
246 |
{
|
|
247 |
_asm mov ecx, [esp+8] // ecx = TRequestStatus**
|
|
248 |
_asm xor eax, eax //
|
|
249 |
_asm lock xchg eax, [ecx] // eax=TRequestStatus*, zero TRequestStatus*
|
|
250 |
_asm cmp eax, 0 //
|
|
251 |
_asm je ExecRequestComplete_ret
|
|
252 |
_asm mov ecx, [esp+12] // ecx = aReason
|
|
253 |
_asm mov [eax], ecx // store aReason in request status
|
|
254 |
__DISPATCH(EExecThreadRequestSignal|EXECUTIVE_SLOW)
|
|
255 |
_asm ExecRequestComplete_ret: ret
|
|
256 |
}
|
|
257 |
|
|
258 |
|
|
259 |
|
|
260 |
|
|
261 |
EXPORT_C void RThread::RequestComplete(TRequestStatus*& aStatus, TInt aReason) const
|
|
262 |
/**
|
|
263 |
Signals this thread that an asynchronous request originating from this thread,
|
|
264 |
is complete.
|
|
265 |
|
|
266 |
The request is associated with the specified request status object supplied
|
|
267 |
by this thread.
|
|
268 |
|
|
269 |
Typically, the caller of this function is the service provider responsible
|
|
270 |
for satisfying the request made by this thread.
|
|
271 |
|
|
272 |
The request is completed with the completion code passed in aReason. This
|
|
273 |
value is copied into this thread's request status, *aStatus, before signalling
|
|
274 |
this thread's request semaphore.
|
|
275 |
|
|
276 |
The meaning of the completion code is a matter of convention to be decided
|
|
277 |
between the service provider and this thread.
|
|
278 |
|
|
279 |
In a client-server situation, completion of a request takes place in the context
|
|
280 |
of the server thread, but the pointer is interpreted in the address space
|
|
281 |
of the client.
|
|
282 |
|
|
283 |
It is often the case in client-server situations that the client and the server
|
|
284 |
are in the same address space (i.e. the same process).
|
|
285 |
|
|
286 |
Setting the pointer to the request status to NULL is a convenience, not all
|
|
287 |
servers need it.
|
|
288 |
|
|
289 |
@param aStatus A reference to a pointer to the request status originally
|
|
290 |
supplied by this thread. This is a pointer into this thread's
|
|
291 |
address space, which may be different to the thread currently
|
|
292 |
executing (this code). On return, the pointer to the request
|
|
293 |
status is set to NULL.
|
|
294 |
|
|
295 |
@param aReason The completion code of this request.
|
|
296 |
*/
|
|
297 |
{
|
|
298 |
ExecRequestComplete(iHandle,aStatus,aReason);
|
|
299 |
}
|
|
300 |
|
|
301 |
|
|
302 |
|
|
303 |
/**
|
|
304 |
Signal this threads request semaphore.
|
|
305 |
|
|
306 |
This is similar to RThread::RequestComplete() except that no TRequestStatus object
|
|
307 |
is modified.
|
|
308 |
|
|
309 |
May only be used to signal a thread in the same process as the callers.
|
|
310 |
|
|
311 |
@panic KERN-EXEC 46 if the thread is not in the same process as the callers
|
|
312 |
*/
|
|
313 |
EXPORT_C void RThread::RequestSignal() const
|
|
314 |
{
|
|
315 |
Exec::ThreadRequestSignal(iHandle);
|
|
316 |
}
|
|
317 |
|
|
318 |
|
|
319 |
|
|
320 |
void ExitCurrentThread(TExitType aType, TInt aReason, const TDesC8* aCategory)
|
|
321 |
{
|
|
322 |
Exec::ThreadKill(KCurrentThreadHandle, aType, aReason, aCategory);
|
|
323 |
}
|
|
324 |
|