if1632/relay.c

   1 /*
   2  * Copyright 1993 Robert J. Amstadt
   3  * Copyright 1995 Alexandre Julliard
   4  */
   5
   6 #include <stdio.h>
   7
   8 #include "dlls.h"
   9 #include "global.h"
  10 #include "module.h"
  11 #include "registers.h"
  12 #include "stackframe.h"
  13 #include "stddebug.h"
  14 /* #define DEBUG_RELAY */
  15 #include "debug.h"
  16
  17 #if 0
  18 /* Make make_debug think these were really used */
  19 dprintf_relay
  20 #endif
  21
  22 #define DLL_ENTRY(name) \
  23   { #name, name##_Code_Start, name##_Data_Start, \
  24     name##_Module_Start, name##_Module_End, TRUE, 0 }
  25 #define DLL_ENTRY_NOTUSED(name) \
  26   { #name, name##_Code_Start, name##_Data_Start, \
  27     name##_Module_Start, name##_Module_End, FALSE, 0 }
  28
  29 struct dll_table_s dll_builtin_table[N_BUILTINS] =
  30 {
  31     DLL_ENTRY(KERNEL),
  32     DLL_ENTRY(USER),
  33     DLL_ENTRY(GDI),
  34     DLL_ENTRY(WIN87EM),
  35     DLL_ENTRY(SHELL),
  36     DLL_ENTRY(SOUND),
  37     DLL_ENTRY(KEYBOARD),
  38     DLL_ENTRY(WINSOCK),
  39     DLL_ENTRY(STRESS),
  40     DLL_ENTRY(MMSYSTEM),
  41     DLL_ENTRY(SYSTEM),
  42     DLL_ENTRY(TOOLHELP),
  43     DLL_ENTRY(MOUSE),
  44     DLL_ENTRY(COMMDLG),
  45     DLL_ENTRY_NOTUSED(OLE2),
  46     DLL_ENTRY_NOTUSED(OLE2CONV),
  47     DLL_ENTRY_NOTUSED(OLE2DISP),
  48     DLL_ENTRY_NOTUSED(OLE2NLS),
  49     DLL_ENTRY_NOTUSED(OLE2PROX),
  50     DLL_ENTRY_NOTUSED(OLECLI),
  51     DLL_ENTRY_NOTUSED(OLESVR),
  52     DLL_ENTRY_NOTUSED(COMPOBJ),
  53     DLL_ENTRY_NOTUSED(STORAGE),
  54     DLL_ENTRY(WINPROCS),
  55     DLL_ENTRY_NOTUSED(DDEML)
  56 };
  57
  58 /* don't forget to increase N_BUILTINS in dlls.h if you add a dll */
  59
  60   /* Saved 16-bit stack */
  61 WORD IF1632_Saved16_ss = 0;
  62 WORD IF1632_Saved16_sp = 0;
  63
  64   /* Saved 32-bit stack */
  65 DWORD IF1632_Saved32_esp = 0;
  66 SEGPTR IF1632_Stack32_base = 0;
  67 DWORD IF1632_Original32_esp = 0;
  68
  69 /***********************************************************************
  70  *           RELAY_Init
  71  */
  72 BOOL RELAY_Init(void)
  73 {
  74     WORD codesel;
  75
  76       /* Allocate the code selector for CallTo16 routines */
  77
  78     extern void CALL16_Start(), CALL16_End();
  79     extern void CALL16_Ret_word(), CALL16_Ret_long();
  80     extern DWORD CALL16_RetAddr_word, CALL16_RetAddr_long;
  81
  82     codesel = GLOBAL_CreateBlock( GMEM_FIXED, (void *)CALL16_Start,
  83                                    (int)CALL16_End - (int)CALL16_Start,
  84                                    0, TRUE, TRUE, FALSE, NULL );
  85     if (!codesel) return FALSE;
  86
  87       /* Patch the return addresses for CallTo16 routines */
  88
  89     CALL16_RetAddr_word = MAKELONG( (int)CALL16_Ret_word - (int)CALL16_Start,
  90                                     codesel );
  91     CALL16_RetAddr_long = MAKELONG( (int)CALL16_Ret_long - (int)CALL16_Start,
  92                                     codesel );
  93
  94     return TRUE;
  95 }
  96
  97
  98 /***********************************************************************
  99  *           RELAY_DebugCall32
 100  */
 101 void RELAY_DebugCall32( int func_type, char *args )
 102 {
 103     STACK16FRAME *frame;
 104     struct dll_table_s *table;
 105     char *args16, *name;
 106     int i;
 107
 108     if (!debugging_relay) return;
 109
 110     frame = CURRENT_STACK16;
 111     table = &dll_builtin_table[frame->dll_id-1];
 112     name  = MODULE_GetEntryPointName( table->hModule, frame->ordinal_number );
 113     printf( "Call %s.%d: %*.*s(",
 114             table->name, frame->ordinal_number, *name, *name, name + 1 );
 115
 116     args16 = (char *)frame->args;
 117     for (i = 0; i < strlen(args); i++)
 118     {
 119         switch(args[i])
 120         {
 121         case 'w':
 122         case 's':
 123             args16 += 2;
 124             break;
 125         case 'l':
 126         case 'p':
 127             args16 += 4;
 128             break;
 129         }
 130     }
 131
 132     while (*args)
 133     {
 134         switch(*args)
 135         {
 136         case 'w':
 137         case 's':
 138             args16 -= 2;
 139             printf( "0x%04x", *(WORD *)args16 );
 140             break;
 141         case 'l':
 142             args16 -= 4;
 143             printf( "0x%08x", *(int *)args16 );
 144             break;
 145         case 'p':
 146             args16 -= 4;
 147             printf( "%04x:%04x", *(WORD *)(args16+2), *(WORD *)args16 );
 148             break;
 149         }
 150         args++;
 151         if (*args) printf( "," );
 152     }
 153     printf( ") ret=%04x:%04x ds=%04x\n", frame->cs, frame->ip, frame->ds );
 154
 155     if (func_type == 2)  /* register function */
 156     {
 157         struct sigcontext_struct *context = (struct sigcontext_struct *)args16;
 158         printf( "     AX=%04x BX=%04x CX=%04x DX=%04x SI=%04x DI=%04x ES=%04x EFL=%08lx\n",
 159                 AX, BX, CX, DX, SI, DI, ES, EFL );
 160     }
 161 }
 162
 163
 164 /***********************************************************************
 165  *           RELAY_DebugReturn
 166  */
 167 void RELAY_DebugReturn( int func_type, int ret_val )
 168 {
 169     STACK16FRAME *frame;
 170     struct dll_table_s *table;
 171     char *name;
 172
 173     if (*(DWORD *)PTR_SEG_TO_LIN(IF1632_Stack32_base) != 0xDEADBEEF) {
 174         fprintf(stderr, "Wine wrote past the end of the 32 bit stack. Please report this.\n");
 175     }
 176     if (!debugging_relay) return;
 177
 178     frame = CURRENT_STACK16;
 179     table = &dll_builtin_table[frame->dll_id-1];
 180     name  = MODULE_GetEntryPointName( table->hModule, frame->ordinal_number );
 181     printf( "Ret  %s.%d: %*.*s() ",
 182             table->name, frame->ordinal_number, *name, *name, name + 1 );
 183     switch(func_type)
 184     {
 185     case 0: /* long */
 186         printf( "retval=0x%08x ds=%04x\n", ret_val, frame->ds );
 187         break;
 188     case 1: /* word */
 189         printf( "retval=0x%04x ds=%04x\n", ret_val & 0xffff, frame->ds );
 190         break;
 191     case 2: /* regs */
 192         printf( "retval=none ds=%04x\n", frame->ds );
 193         break;
 194     }
 195 }
 196
 197
 198 /***********************************************************************
 199  *           RELAY_Unimplemented
 200  *
 201  * This function is called for unimplemented entry points (declared
 202  * as 'stub' in the spec file).
 203  */
 204 void RELAY_Unimplemented(void)
 205 {
 206     STACK16FRAME *frame = CURRENT_STACK16;
 207     struct dll_table_s *table = &dll_builtin_table[frame->dll_id-1];
 208     char *name = MODULE_GetEntryPointName( table->hModule, frame->ordinal_number );
 209
 210     fprintf( stderr, "No handler for routine %s.%d (%*.*s)\n",
 211              table->name, frame->ordinal_number, *name, *name, name + 1 );
 212     exit(1);
 213 }
 214
 215
 216 /***********************************************************************
 217  *           RELAY_DebugCall16
 218  *
 219  * 'stack' points to the called function address on the 32-bit stack.
 220  * Stack layout:
 221  *  ...        ...
 222  * (stack+12)  arg2
 223  * (stack+8)   arg1
 224  * (stack+4)   16-bit ds
 225  * (stack)     func to call
 226  */
 227 void RELAY_DebugCall16( int* stack, int nbargs )
 228 {
 229     if (!debugging_relay) return;
 230
 231     printf( "CallTo16(func=%04x:%04x,ds=%04x",
 232             HIWORD(stack[0]), LOWORD(stack[0]), LOWORD(stack[1]) );
 233     stack += 2;
 234     while (nbargs--) printf( ",0x%x", *stack++ );
 235     printf( ")\n" );
 236 }