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);
41 * Stubs for the CallTo16/CallFrom16 routines on non-Intel architectures
42 * (these will never be called but need to be present to satisfy the linker ...)
45 /***********************************************************************
46 * __wine_call_from_16_word (KERNEL32.@)
48 WORD __wine_call_from_16_word()
53 /***********************************************************************
54 * __wine_call_from_16_long (KERNEL32.@)
56 LONG __wine_call_from_16_long()
61 /***********************************************************************
62 * __wine_call_from_16_regs (KERNEL32.@)
64 void __wine_call_from_16_regs()
69 DWORD WINAPI CALL32_CBClient( FARPROC proc, LPWORD args, DWORD *esi )
72 DWORD WINAPI CALL32_CBClientEx( FARPROC proc, LPWORD args, DWORD *esi, INT *nArgs )
77 /***********************************************************************
78 * RELAY_ShowDebugmsgRelay
80 * Simple function to decide if a particular debugging message is
83 static int RELAY_ShowDebugmsgRelay(const char *func)
85 /* from relay32/relay386.c */
86 extern const char **debug_relay_excludelist,**debug_relay_includelist;
88 if(debug_relay_excludelist || debug_relay_includelist) {
89 const char *term = strchr(func, ':');
90 const char **listitem;
91 int len, len2, itemlen, show;
93 if(debug_relay_excludelist) {
95 listitem = debug_relay_excludelist;
98 listitem = debug_relay_includelist;
101 assert(strlen(term) > 2);
103 len2 = strchr(func, '.') - func;
104 assert(len2 && len2 > 0 && len2 < 64);
106 for(; *listitem; listitem++) {
107 itemlen = strlen(*listitem);
108 if((itemlen == len && !strncasecmp(*listitem, func, len)) ||
109 (itemlen == len2 && !strncasecmp(*listitem, func, len2)) ||
110 !strcasecmp(*listitem, term)) {
121 /***********************************************************************
124 * Return the ordinal, name, and type info corresponding to a CS:IP address.
126 static const CALLFROM16 *get_entry_point( STACK16FRAME *frame, LPSTR name, WORD *pOrd )
134 if (!(pModule = NE_GetPtr( FarGetOwner16( GlobalHandle16( frame->module_cs ) ))))
139 bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->entry_table);
142 entry = (ET_ENTRY *)((BYTE *)bundle+6);
143 for (i = bundle->first + 1; i <= bundle->last; i++)
145 if ((entry->offs < frame->entry_ip)
146 && (entry->segnum == 1) /* code segment ? */
147 && (entry->offs >= max_offset))
149 max_offset = entry->offs;
154 } while ( (bundle->next)
155 && (bundle = (ET_BUNDLE *)((BYTE *)pModule+bundle->next)));
157 /* Search for the name in the resident names table */
158 /* (built-in modules have no non-resident table) */
160 p = (BYTE *)pModule + pModule->name_table;
163 p += *p + 1 + sizeof(WORD);
164 if (*(WORD *)(p + *p + 1) == *pOrd) break;
167 sprintf( name, "%.*s.%d: %.*s",
168 *((BYTE *)pModule + pModule->name_table),
169 (char *)pModule + pModule->name_table + 1,
170 *pOrd, *p, (char *)(p + 1) );
172 /* Retrieve entry point call structure */
173 p = MapSL( MAKESEGPTR( frame->module_cs, frame->callfrom_ip ) );
174 /* p now points to lret, get the start of CALLFROM16 structure */
175 return (CALLFROM16 *)(p - (BYTE *)&((CALLFROM16 *)0)->lret);
179 /***********************************************************************
180 * RELAY_DebugCallFrom16
182 void RELAY_DebugCallFrom16( CONTEXT86 *context )
186 char *args16, funstr[80];
187 const CALLFROM16 *call;
190 if (!TRACE_ON(relay)) return;
192 frame = CURRENT_STACK16;
193 call = get_entry_point( frame, funstr, &ordinal );
194 if (!call) return; /* happens for the two snoop register relays */
195 if (!RELAY_ShowDebugmsgRelay(funstr)) return;
196 DPRINTF( "%04lx:Call %s(",GetCurrentThreadId(),funstr);
197 args16 = (char *)(frame + 1);
199 if (call->lret == 0xcb66) /* cdecl */
201 for (i = 0; i < 20; i++)
203 int type = (call->arg_types[i / 10] >> (3 * (i % 10))) & 7;
205 if (type == ARG_NONE) break;
206 if (i) DPRINTF( "," );
211 DPRINTF( "%04x", *(WORD *)args16 );
212 args16 += sizeof(WORD);
215 DPRINTF( "%08x", *(int *)args16 );
216 args16 += sizeof(int);
219 DPRINTF( "%04x:%04x", *(WORD *)(args16+2), *(WORD *)args16 );
220 args16 += sizeof(SEGPTR);
223 DPRINTF( "%08x %s", *(int *)args16,
224 debugstr_a( MapSL(*(SEGPTR *)args16 )));
225 args16 += sizeof(int);
228 DPRINTF( "%04x:%04x %s", *(WORD *)(args16+2), *(WORD *)args16,
229 debugstr_a( MapSL(*(SEGPTR *)args16 )) );
230 args16 += sizeof(SEGPTR);
239 /* Start with the last arg */
240 args16 += call->nArgs;
241 for (i = 0; i < 20; i++)
243 int type = (call->arg_types[i / 10] >> (3 * (i % 10))) & 7;
245 if (type == ARG_NONE) break;
246 if (i) DPRINTF( "," );
251 args16 -= sizeof(WORD);
252 DPRINTF( "%04x", *(WORD *)args16 );
255 args16 -= sizeof(int);
256 DPRINTF( "%08x", *(int *)args16 );
259 args16 -= sizeof(SEGPTR);
260 DPRINTF( "%04x:%04x", *(WORD *)(args16+2), *(WORD *)args16 );
263 args16 -= sizeof(int);
264 DPRINTF( "%08x %s", *(int *)args16,
265 debugstr_a( MapSL(*(SEGPTR *)args16 )));
268 args16 -= sizeof(SEGPTR);
269 DPRINTF( "%04x:%04x %s", *(WORD *)(args16+2), *(WORD *)args16,
270 debugstr_a( MapSL(*(SEGPTR *)args16 )) );
278 DPRINTF( ") ret=%04x:%04x ds=%04x\n", frame->cs, frame->ip, frame->ds );
280 if (call->arg_types[0] & ARG_REGISTER)
281 DPRINTF(" AX=%04x BX=%04x CX=%04x DX=%04x SI=%04x DI=%04x ES=%04x EFL=%08lx\n",
282 (WORD)context->Eax, (WORD)context->Ebx, (WORD)context->Ecx,
283 (WORD)context->Edx, (WORD)context->Esi, (WORD)context->Edi,
284 (WORD)context->SegEs, context->EFlags );
286 SYSLEVEL_CheckNotLevel( 2 );
290 /***********************************************************************
291 * RELAY_DebugCallFrom16Ret
293 void RELAY_DebugCallFrom16Ret( CONTEXT86 *context, int ret_val )
298 const CALLFROM16 *call;
300 if (!TRACE_ON(relay)) return;
301 frame = CURRENT_STACK16;
302 call = get_entry_point( frame, funstr, &ordinal );
304 if (!RELAY_ShowDebugmsgRelay(funstr)) return;
305 DPRINTF( "%04lx:Ret %s() ",GetCurrentThreadId(),funstr);
307 if (call->arg_types[0] & ARG_REGISTER)
309 DPRINTF("retval=none ret=%04x:%04x ds=%04x\n",
310 (WORD)context->SegCs, LOWORD(context->Eip), (WORD)context->SegDs);
311 DPRINTF(" AX=%04x BX=%04x CX=%04x DX=%04x SI=%04x DI=%04x ES=%04x EFL=%08lx\n",
312 (WORD)context->Eax, (WORD)context->Ebx, (WORD)context->Ecx,
313 (WORD)context->Edx, (WORD)context->Esi, (WORD)context->Edi,
314 (WORD)context->SegEs, context->EFlags );
316 else if (call->arg_types[0] & ARG_RET16)
318 DPRINTF( "retval=%04x ret=%04x:%04x ds=%04x\n",
319 ret_val & 0xffff, frame->cs, frame->ip, frame->ds );
323 DPRINTF( "retval=%08x ret=%04x:%04x ds=%04x\n",
324 ret_val, frame->cs, frame->ip, frame->ds );
326 SYSLEVEL_CheckNotLevel( 2 );