2 * 386-specific Win32 relay functions
4 * Copyright 1997 Alexandre Julliard
11 #include "builtin32.h"
12 #include "selectors.h"
13 #include "stackframe.h"
17 #include "debugtools.h"
19 DEFAULT_DEBUG_CHANNEL(relay
)
21 char **debug_relay_excludelist
= NULL
, **debug_relay_includelist
= NULL
;
23 /***********************************************************************
24 * RELAY_ShowDebugmsgRelay
26 * Simple function to decide if a particular debugging message is
27 * wanted. Called from RELAY_CallFrom32 and from in if1632/relay.c
29 int RELAY_ShowDebugmsgRelay(const char *func
) {
31 if(debug_relay_excludelist
|| debug_relay_includelist
) {
32 const char *term
= strchr(func
, ':');
34 int len
, len2
, itemlen
, show
;
36 if(debug_relay_excludelist
) {
38 listitem
= debug_relay_excludelist
;
41 listitem
= debug_relay_includelist
;
44 assert(strlen(term
) > 2);
46 len2
= strchr(func
, '.') - func
;
47 assert(len2
&& len2
> 0 && len2
< 64);
49 for(; *listitem
; listitem
++) {
50 itemlen
= strlen(*listitem
);
51 if((itemlen
== len
&& !lstrncmpiA(*listitem
, func
, len
)) ||
52 (itemlen
== len2
&& !lstrncmpiA(*listitem
, func
, len2
)) ||
53 !lstrcmpiA(*listitem
, term
)) {
66 /***********************************************************************
69 static inline void RELAY_PrintArgs( int *args
, int nb_args
, unsigned int typemask
)
73 if ((typemask
& 3) && HIWORD(*args
))
76 DPRINTF( "%08x L%s", *args
, debugstr_w((LPWSTR
)*args
) );
78 DPRINTF( "%08x %s", *args
, debugstr_a((LPCSTR
)*args
) );
80 else DPRINTF( "%08x", *args
);
81 if (nb_args
) DPRINTF( "," );
88 /***********************************************************************
91 * Stack layout on entry to this function:
96 * (esp) return addr to relay code
98 int RELAY_CallFrom32( int ret_addr
, ... )
102 unsigned int typemask
;
106 int *args
= &ret_addr
+ 1;
107 /* Relay addr is the return address for this function */
108 BYTE
*relay_addr
= (BYTE
*)__builtin_return_address(0);
109 WORD nb_args
= *(WORD
*)(relay_addr
+ 1) / sizeof(int);
111 assert(TRACE_ON(relay
));
112 func
= (FARPROC
)BUILTIN32_GetEntryPoint( buffer
, relay_addr
- 5, &typemask
);
113 DPRINTF( "Call %s(", buffer
);
114 RELAY_PrintArgs( args
, nb_args
, typemask
);
116 DPRINTF( ") ret=%08x fs=%04x\n", ret_addr
, fs
);
118 SYSLEVEL_CheckNotLevel( 2 );
120 if (*relay_addr
== 0xc3) /* cdecl */
122 LRESULT (*cfunc
)() = (LRESULT(*)())func
;
125 case 0: ret
= cfunc(); break;
126 case 1: ret
= cfunc(args
[0]); break;
127 case 2: ret
= cfunc(args
[0],args
[1]); break;
128 case 3: ret
= cfunc(args
[0],args
[1],args
[2]); break;
129 case 4: ret
= cfunc(args
[0],args
[1],args
[2],args
[3]); break;
130 case 5: ret
= cfunc(args
[0],args
[1],args
[2],args
[3],args
[4]); break;
131 case 6: ret
= cfunc(args
[0],args
[1],args
[2],args
[3],args
[4],
133 case 7: ret
= cfunc(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],
135 case 8: ret
= cfunc(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],
136 args
[6],args
[7]); break;
137 case 9: ret
= cfunc(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],
138 args
[6],args
[7],args
[8]); break;
139 case 10: ret
= cfunc(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],
140 args
[6],args
[7],args
[8],args
[9]); break;
141 case 11: ret
= cfunc(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],
142 args
[6],args
[7],args
[8],args
[9],args
[10]); break;
143 case 12: ret
= cfunc(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],
144 args
[6],args
[7],args
[8],args
[9],args
[10],
146 case 13: ret
= cfunc(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],
147 args
[6],args
[7],args
[8],args
[9],args
[10],args
[11],
149 case 14: ret
= cfunc(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],
150 args
[6],args
[7],args
[8],args
[9],args
[10],args
[11],
151 args
[12],args
[13]); break;
152 case 15: ret
= cfunc(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],
153 args
[6],args
[7],args
[8],args
[9],args
[10],args
[11],
154 args
[12],args
[13],args
[14]); break;
155 case 16: ret
= cfunc(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],
156 args
[6],args
[7],args
[8],args
[9],args
[10],args
[11],
157 args
[12],args
[13],args
[14],args
[15]); break;
159 ERR( "Unsupported nb of args %d\n", nb_args
);
167 case 0: ret
= func(); break;
168 case 1: ret
= func(args
[0]); break;
169 case 2: ret
= func(args
[0],args
[1]); break;
170 case 3: ret
= func(args
[0],args
[1],args
[2]); break;
171 case 4: ret
= func(args
[0],args
[1],args
[2],args
[3]); break;
172 case 5: ret
= func(args
[0],args
[1],args
[2],args
[3],args
[4]); break;
173 case 6: ret
= func(args
[0],args
[1],args
[2],args
[3],args
[4],
175 case 7: ret
= func(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],
177 case 8: ret
= func(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],
178 args
[6],args
[7]); break;
179 case 9: ret
= func(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],
180 args
[6],args
[7],args
[8]); break;
181 case 10: ret
= func(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],
182 args
[6],args
[7],args
[8],args
[9]); break;
183 case 11: ret
= func(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],
184 args
[6],args
[7],args
[8],args
[9],args
[10]); break;
185 case 12: ret
= func(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],
186 args
[6],args
[7],args
[8],args
[9],args
[10],
188 case 13: ret
= func(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],
189 args
[6],args
[7],args
[8],args
[9],args
[10],args
[11],
191 case 14: ret
= func(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],
192 args
[6],args
[7],args
[8],args
[9],args
[10],args
[11],
193 args
[12],args
[13]); break;
194 case 15: ret
= func(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],
195 args
[6],args
[7],args
[8],args
[9],args
[10],args
[11],
196 args
[12],args
[13],args
[14]); break;
197 case 16: ret
= func(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],
198 args
[6],args
[7],args
[8],args
[9],args
[10],args
[11],
199 args
[12],args
[13],args
[14],args
[15]); break;
201 ERR( "Unsupported nb of args %d\n", nb_args
);
205 DPRINTF( "Ret %s() retval=%08x ret=%08x fs=%04x\n",
206 buffer
, ret
, ret_addr
, fs
);
208 SYSLEVEL_CheckNotLevel( 2 );
214 /***********************************************************************
215 * RELAY_CallFrom32Regs
217 * Stack layout (esp is ESP_reg(context), not the current %esp):
221 * (esp) return addr to caller
222 * (esp-4) return addr to DEBUG_ENTRY_POINT
223 * (esp-8) ptr to relay entry code for RELAY_CallFrom32Regs
224 * ... >128 bytes space free to be modified (ensured by the assembly glue)
227 void WINAPI
RELAY_DoCallFrom32Regs( CONTEXT86
*context
);
228 DEFINE_REGS_ENTRYPOINT_0( RELAY_CallFrom32Regs
, RELAY_DoCallFrom32Regs
)
229 void WINAPI
RELAY_DoCallFrom32Regs( CONTEXT86
*context
)
231 unsigned int typemask
;
237 BYTE
*relay_addr
= *((BYTE
**)ESP_reg(context
) - 1);
238 WORD nb_args
= *(WORD
*)(relay_addr
+ 1) / sizeof(int);
240 /* remove extra stuff from the stack */
241 EIP_reg(context
) = stack32_pop(context
);
242 args
= (int *)ESP_reg(context
);
243 ESP_reg(context
) += 4 * nb_args
;
245 assert(TRACE_ON(relay
));
247 entry_point
= (BYTE
*)BUILTIN32_GetEntryPoint( buffer
, relay_addr
- 5, &typemask
);
248 assert( *entry_point
== 0xe8 /* lcall */ );
249 func
= *(FARPROC
*)(entry_point
+ 5);
251 DPRINTF( "Call %s(", buffer
);
252 RELAY_PrintArgs( args
, nb_args
, typemask
);
253 DPRINTF( ") ret=%08lx fs=%04lx\n", EIP_reg(context
), FS_reg(context
) );
255 DPRINTF(" eax=%08lx ebx=%08lx ecx=%08lx edx=%08lx esi=%08lx edi=%08lx\n",
256 EAX_reg(context
), EBX_reg(context
), ECX_reg(context
),
257 EDX_reg(context
), ESI_reg(context
), EDI_reg(context
) );
258 DPRINTF(" ebp=%08lx esp=%08lx ds=%04lx es=%04lx gs=%04lx flags=%08lx\n",
259 EBP_reg(context
), ESP_reg(context
), DS_reg(context
),
260 ES_reg(context
), GS_reg(context
), EFL_reg(context
) );
262 SYSLEVEL_CheckNotLevel( 2 );
264 /* Now call the real function */
267 case 0: func(context
); break;
268 case 1: func(args
[0],context
); break;
269 case 2: func(args
[0],args
[1],context
); break;
270 case 3: func(args
[0],args
[1],args
[2],context
); break;
271 case 4: func(args
[0],args
[1],args
[2],args
[3],context
); break;
272 case 5: func(args
[0],args
[1],args
[2],args
[3],args
[4],context
); break;
273 case 6: func(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],context
); break;
274 case 7: func(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],args
[6],context
); break;
275 case 8: func(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],args
[6],args
[7],context
); break;
276 case 9: func(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],args
[6],args
[7],args
[8],
278 case 10: func(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],args
[6],args
[7],args
[8],
279 args
[9],context
); break;
280 case 11: func(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],args
[6],args
[7],args
[8],
281 args
[9],args
[10],context
); break;
282 case 12: func(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],args
[6],args
[7],args
[8],
283 args
[9],args
[10],args
[11],context
); break;
284 case 13: func(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],args
[6],args
[7],args
[8],
285 args
[9],args
[10],args
[11],args
[12],context
); break;
286 case 14: func(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],args
[6],args
[7],args
[8],
287 args
[9],args
[10],args
[11],args
[12],args
[13],context
); break;
288 case 15: func(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5],args
[6],args
[7],args
[8],
289 args
[9],args
[10],args
[11],args
[12],args
[13],args
[14],context
); break;
290 case 16: func(args
[0],args
[1],args
[2],args
[3],args
[4],args
[5], args
[6],args
[7],args
[8],
291 args
[9],args
[10],args
[11],args
[12],args
[13],args
[14],args
[15],context
); break;
293 ERR( "Unsupported nb of args %d\n", nb_args
);
297 DPRINTF( "Ret %s() retval=%08lx ret=%08lx fs=%04lx\n",
298 buffer
, EAX_reg(context
), EIP_reg(context
), FS_reg(context
) );
299 DPRINTF(" eax=%08lx ebx=%08lx ecx=%08lx edx=%08lx esi=%08lx edi=%08lx\n",
300 EAX_reg(context
), EBX_reg(context
), ECX_reg(context
),
301 EDX_reg(context
), ESI_reg(context
), EDI_reg(context
) );
302 DPRINTF(" ebp=%08lx esp=%08lx ds=%04lx es=%04lx gs=%04lx flags=%08lx\n",
303 EBP_reg(context
), ESP_reg(context
), DS_reg(context
),
304 ES_reg(context
), GS_reg(context
), EFL_reg(context
) );
306 SYSLEVEL_CheckNotLevel( 2 );
308 #endif /* __i386__ */