2 * Copyright 1993 Robert J. Amstadt
3 * Copyright 1995 Alexandre Julliard
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #include "wine/port.h"
29 #include "wine/winbase16.h"
31 #include "stackframe.h"
32 #include "selectors.h"
33 #include "builtin16.h"
35 #include "wine/library.h"
36 #include "wine/debug.h"
38 WINE_DEFAULT_DEBUG_CHANNEL(relay);
40 /***********************************************************************
48 /* Allocate the code selector for CallTo16 routines */
50 extern void Call16_Ret_Start(), Call16_Ret_End();
51 extern void CallTo16_Ret();
52 extern void CALL32_CBClient_Ret();
53 extern void CALL32_CBClientEx_Ret();
54 extern SEGPTR CallTo16_RetAddr;
55 extern DWORD CallTo16_DataSelector;
56 extern SEGPTR CALL32_CBClient_RetAddr;
57 extern SEGPTR CALL32_CBClientEx_RetAddr;
59 codesel = SELECTOR_AllocBlock( (void *)Call16_Ret_Start,
60 (char *)Call16_Ret_End - (char *)Call16_Ret_Start,
61 WINE_LDT_FLAGS_CODE | WINE_LDT_FLAGS_32BIT );
62 if (!codesel) return FALSE;
64 /* Patch the return addresses for CallTo16 routines */
66 CallTo16_DataSelector = wine_get_ds();
68 MAKESEGPTR( codesel, (char*)CallTo16_Ret - (char*)Call16_Ret_Start );
69 CALL32_CBClient_RetAddr =
70 MAKESEGPTR( codesel, (char*)CALL32_CBClient_Ret - (char*)Call16_Ret_Start );
71 CALL32_CBClientEx_RetAddr =
72 MAKESEGPTR( codesel, (char*)CALL32_CBClientEx_Ret - (char*)Call16_Ret_Start );
78 * Stubs for the CallTo16/CallFrom16 routines on non-Intel architectures
79 * (these will never be called but need to be present to satisfy the linker ...)
82 /***********************************************************************
83 * wine_call_to_16 (KERNEL32.@)
85 LONG WINAPI wine_call_to_16( FARPROC16 target, INT nArgs )
90 /***********************************************************************
91 * wine_call_to_16_regs_short (KERNEL32.@)
93 void WINAPI wine_call_to_16_regs_short( CONTEXT86 *context, INT nArgs )
98 /***********************************************************************
99 * wine_call_to_16_regs_long (KERNEL32.@)
101 void WINAPI wine_call_to_16_regs_long ( CONTEXT86 *context, INT nArgs )
106 /***********************************************************************
107 * __wine_call_from_16_word (KERNEL32.@)
109 WORD __wine_call_from_16_word()
114 /***********************************************************************
115 * __wine_call_from_16_long (KERNEL32.@)
117 LONG __wine_call_from_16_long()
122 /***********************************************************************
123 * __wine_call_from_16_regs (KERNEL32.@)
125 void __wine_call_from_16_regs()
130 DWORD WINAPI CALL32_CBClient( FARPROC proc, LPWORD args, DWORD *esi )
133 DWORD WINAPI CALL32_CBClientEx( FARPROC proc, LPWORD args, DWORD *esi, INT *nArgs )
138 /***********************************************************************
139 * RELAY_ShowDebugmsgRelay
141 * Simple function to decide if a particular debugging message is
144 static int RELAY_ShowDebugmsgRelay(const char *func)
146 /* from relay32/relay386.c */
147 extern const char **debug_relay_excludelist,**debug_relay_includelist;
149 if(debug_relay_excludelist || debug_relay_includelist) {
150 const char *term = strchr(func, ':');
151 const char **listitem;
152 int len, len2, itemlen, show;
154 if(debug_relay_excludelist) {
156 listitem = debug_relay_excludelist;
159 listitem = debug_relay_includelist;
162 assert(strlen(term) > 2);
164 len2 = strchr(func, '.') - func;
165 assert(len2 && len2 > 0 && len2 < 64);
167 for(; *listitem; listitem++) {
168 itemlen = strlen(*listitem);
169 if((itemlen == len && !strncasecmp(*listitem, func, len)) ||
170 (itemlen == len2 && !strncasecmp(*listitem, func, len2)) ||
171 !strcasecmp(*listitem, term)) {
182 /***********************************************************************
185 * Return the ordinal, name, and type info corresponding to a CS:IP address.
187 static const CALLFROM16 *get_entry_point( STACK16FRAME *frame, LPSTR name, WORD *pOrd )
195 if (!(pModule = NE_GetPtr( FarGetOwner16( GlobalHandle16( frame->module_cs ) ))))
200 bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->entry_table);
203 entry = (ET_ENTRY *)((BYTE *)bundle+6);
204 for (i = bundle->first + 1; i <= bundle->last; i++)
206 if ((entry->offs < frame->entry_ip)
207 && (entry->segnum == 1) /* code segment ? */
208 && (entry->offs >= max_offset))
210 max_offset = entry->offs;
215 } while ( (bundle->next)
216 && (bundle = (ET_BUNDLE *)((BYTE *)pModule+bundle->next)));
218 /* Search for the name in the resident names table */
219 /* (built-in modules have no non-resident table) */
221 p = (BYTE *)pModule + pModule->name_table;
224 p += *p + 1 + sizeof(WORD);
225 if (*(WORD *)(p + *p + 1) == *pOrd) break;
228 sprintf( name, "%.*s.%d: %.*s",
229 *((BYTE *)pModule + pModule->name_table),
230 (char *)pModule + pModule->name_table + 1,
231 *pOrd, *p, (char *)(p + 1) );
233 /* Retrieve entry point call structure */
234 p = MapSL( MAKESEGPTR( frame->module_cs, frame->callfrom_ip ) );
235 /* p now points to lret, get the start of CALLFROM16 structure */
236 return (CALLFROM16 *)(p - (BYTE *)&((CALLFROM16 *)0)->lret);
240 /***********************************************************************
241 * RELAY_DebugCallFrom16
243 void RELAY_DebugCallFrom16( CONTEXT86 *context )
247 char *args16, funstr[80];
248 const CALLFROM16 *call;
251 if (!TRACE_ON(relay)) return;
253 frame = CURRENT_STACK16;
254 call = get_entry_point( frame, funstr, &ordinal );
255 if (!call) return; /* happens for the two snoop register relays */
256 if (!RELAY_ShowDebugmsgRelay(funstr)) return;
257 DPRINTF( "%08lx:Call %s(",GetCurrentThreadId(),funstr);
258 VA_START16( args16 );
260 if (call->lret == 0xcb66) /* cdecl */
262 for (i = 0; i < 20; i++)
264 int type = (call->arg_types[i / 10] >> (3 * (i % 10))) & 7;
266 if (type == ARG_NONE) break;
267 if (i) DPRINTF( "," );
272 DPRINTF( "%04x", *(WORD *)args16 );
273 args16 += sizeof(WORD);
276 DPRINTF( "%08x", *(int *)args16 );
277 args16 += sizeof(int);
280 DPRINTF( "%04x:%04x", *(WORD *)(args16+2), *(WORD *)args16 );
281 args16 += sizeof(SEGPTR);
284 DPRINTF( "%08x %s", *(int *)args16,
285 debugstr_a( MapSL(*(SEGPTR *)args16 )));
286 args16 += sizeof(int);
289 DPRINTF( "%04x:%04x %s", *(WORD *)(args16+2), *(WORD *)args16,
290 debugstr_a( MapSL(*(SEGPTR *)args16 )) );
291 args16 += sizeof(SEGPTR);
300 /* Start with the last arg */
301 args16 += call->nArgs;
302 for (i = 0; i < 20; i++)
304 int type = (call->arg_types[i / 10] >> (3 * (i % 10))) & 7;
306 if (type == ARG_NONE) break;
307 if (i) DPRINTF( "," );
312 args16 -= sizeof(WORD);
313 DPRINTF( "%04x", *(WORD *)args16 );
316 args16 -= sizeof(int);
317 DPRINTF( "%08x", *(int *)args16 );
320 args16 -= sizeof(SEGPTR);
321 DPRINTF( "%04x:%04x", *(WORD *)(args16+2), *(WORD *)args16 );
324 args16 -= sizeof(int);
325 DPRINTF( "%08x %s", *(int *)args16,
326 debugstr_a( MapSL(*(SEGPTR *)args16 )));
329 args16 -= sizeof(SEGPTR);
330 DPRINTF( "%04x:%04x %s", *(WORD *)(args16+2), *(WORD *)args16,
331 debugstr_a( MapSL(*(SEGPTR *)args16 )) );
339 DPRINTF( ") ret=%04x:%04x ds=%04x\n", frame->cs, frame->ip, frame->ds );
342 if (call->arg_types[0] & ARG_REGISTER)
343 DPRINTF(" AX=%04x BX=%04x CX=%04x DX=%04x SI=%04x DI=%04x ES=%04x EFL=%08lx\n",
344 (WORD)context->Eax, (WORD)context->Ebx, (WORD)context->Ecx,
345 (WORD)context->Edx, (WORD)context->Esi, (WORD)context->Edi,
346 (WORD)context->SegEs, context->EFlags );
348 SYSLEVEL_CheckNotLevel( 2 );
352 /***********************************************************************
353 * RELAY_DebugCallFrom16Ret
355 void RELAY_DebugCallFrom16Ret( CONTEXT86 *context, int ret_val )
360 const CALLFROM16 *call;
362 if (!TRACE_ON(relay)) return;
363 frame = CURRENT_STACK16;
364 call = get_entry_point( frame, funstr, &ordinal );
366 if (!RELAY_ShowDebugmsgRelay(funstr)) return;
367 DPRINTF( "%08lx:Ret %s() ",GetCurrentThreadId(),funstr);
369 if (call->arg_types[0] & ARG_REGISTER)
371 DPRINTF("retval=none ret=%04x:%04x ds=%04x\n",
372 (WORD)context->SegCs, LOWORD(context->Eip), (WORD)context->SegDs);
373 DPRINTF(" AX=%04x BX=%04x CX=%04x DX=%04x SI=%04x DI=%04x ES=%04x EFL=%08lx\n",
374 (WORD)context->Eax, (WORD)context->Ebx, (WORD)context->Ecx,
375 (WORD)context->Edx, (WORD)context->Esi, (WORD)context->Edi,
376 (WORD)context->SegEs, context->EFlags );
378 else if (call->arg_types[0] & ARG_RET16)
380 DPRINTF( "retval=%04x ret=%04x:%04x ds=%04x\n",
381 ret_val & 0xffff, frame->cs, frame->ip, frame->ds );
385 DPRINTF( "retval=%08x ret=%04x:%04x ds=%04x\n",
386 ret_val, frame->cs, frame->ip, frame->ds );
388 SYSLEVEL_CheckNotLevel( 2 );
392 /***********************************************************************
393 * RELAY_DebugCallTo16
395 * 'target' contains either the function to call (normal CallTo16)
396 * or a pointer to the CONTEXT86 struct (register CallTo16).
397 * 'nb_args' is the number of argument bytes on the 16-bit stack;
398 * 'reg_func' specifies whether we have a register CallTo16 or not.
400 void RELAY_DebugCallTo16( LPVOID target, int nb_args, BOOL reg_func )
405 if (!TRACE_ON(relay)) return;
406 teb = NtCurrentTeb();
407 stack16 = (WORD *)THREAD_STACK16(teb);
409 nb_args /= sizeof(WORD);
413 CONTEXT86 *context = (CONTEXT86 *)target;
415 DPRINTF("%08lx:CallTo16(func=%04lx:%04x,ds=%04lx",
416 GetCurrentThreadId(),
417 context->SegCs, LOWORD(context->Eip), context->SegDs );
418 while (nb_args--) DPRINTF( ",%04x", *--stack16 );
419 DPRINTF(") ss:sp=%04x:%04x", SELECTOROF(teb->cur_stack),
420 OFFSETOF(teb->cur_stack) );
421 DPRINTF(" ax=%04x bx=%04x cx=%04x dx=%04x si=%04x di=%04x bp=%04x es=%04x fs=%04x\n",
422 (WORD)context->Eax, (WORD)context->Ebx, (WORD)context->Ecx,
423 (WORD)context->Edx, (WORD)context->Esi, (WORD)context->Edi,
424 (WORD)context->Ebp, (WORD)context->SegEs, (WORD)context->SegFs );
428 DPRINTF("%08lx:CallTo16(func=%04x:%04x,ds=%04x",
429 GetCurrentThreadId(),
430 HIWORD(target), LOWORD(target), SELECTOROF(teb->cur_stack) );
431 while (nb_args--) DPRINTF( ",%04x", *--stack16 );
432 DPRINTF(") ss:sp=%04x:%04x\n", SELECTOROF(teb->cur_stack),
433 OFFSETOF(teb->cur_stack) );
436 SYSLEVEL_CheckNotLevel( 2 );
440 /***********************************************************************
441 * RELAY_DebugCallTo16Ret
443 void RELAY_DebugCallTo16Ret( BOOL reg_func, int ret_val )
445 if (!TRACE_ON(relay)) return;
449 DPRINTF("%08lx:RetFrom16() ss:sp=%04x:%04x retval=%08x\n",
450 GetCurrentThreadId(),
451 SELECTOROF(NtCurrentTeb()->cur_stack),
452 OFFSETOF(NtCurrentTeb()->cur_stack), ret_val);
456 CONTEXT86 *context = (CONTEXT86 *)ret_val;
458 DPRINTF("%08lx:RetFrom16() ss:sp=%04x:%04x ",
459 GetCurrentThreadId(),
460 SELECTOROF(NtCurrentTeb()->cur_stack),
461 OFFSETOF(NtCurrentTeb()->cur_stack));
462 DPRINTF(" ax=%04x bx=%04x cx=%04x dx=%04x bp=%04x sp=%04x\n",
463 (WORD)context->Eax, (WORD)context->Ebx, (WORD)context->Ecx,
464 (WORD)context->Edx, (WORD)context->Ebp, (WORD)context->Esp );
467 SYSLEVEL_CheckNotLevel( 2 );