tools/winedump/output.c

   1 /*
   2  *  Code generation functions
   3  *
   4  *  Copyright 2000-2002 Jon Griffiths
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include "winedump.h"
  25
  26 /* Output files */
  27 static FILE *specfile = NULL;
  28 static FILE *hfile    = NULL;
  29 static FILE *cfile    = NULL;
  30
  31 static void  output_spec_postamble (void);
  32 static void  output_header_postamble (void);
  33 static void  output_c_postamble (void);
  34 static void  output_c_banner (const parsed_symbol *sym);
  35 static const char *get_format_str (int type);
  36 static const char *get_in_or_out (const parsed_symbol *sym, size_t arg);
  37
  38
  39 /*******************************************************************
  40  *         output_spec_preamble
  41  *
  42  * Write the first part of the .spec file
  43  */
  44 void  output_spec_preamble (void)
  45 {
  46   specfile = open_file (OUTPUT_DLL_NAME, ".spec", "w");
  47
  48   atexit (output_spec_postamble);
  49
  50   if (VERBOSE)
  51     puts ("Creating .spec preamble");
  52
  53   fprintf (specfile,
  54            "# Generated from %s by winedump\n\n", globals.input_name);
  55 }
  56
  57
  58 /*******************************************************************
  59  *         output_spec_symbol
  60  *
  61  * Write a symbol to the .spec file
  62  */
  63 void  output_spec_symbol (const parsed_symbol *sym)
  64 {
  65   char ord_spec[20];
  66
  67   assert (specfile);
  68   assert (sym && sym->symbol);
  69
  70   if (sym->ordinal >= 0)
  71     snprintf(ord_spec, 12, "%d", sym->ordinal);
  72   else
  73   {
  74     ord_spec[0] = '@';
  75     ord_spec[1] = '\0';
  76   }
  77   if (sym->flags & SYM_THISCALL)
  78     strcat (ord_spec, " -i386"); /* For binary compatibility only */
  79
  80   if (!globals.do_code || !sym->function_name)
  81   {
  82     if (sym->flags & SYM_DATA)
  83     {
  84       if (globals.forward_dll)
  85         fprintf (specfile, "%s forward %s %s.%s #", ord_spec, sym->symbol,
  86                  globals.forward_dll, sym->symbol);
  87
  88       fprintf (specfile, "%s extern %s %s\n", ord_spec, sym->symbol,
  89                sym->arg_name[0]);
  90       return;
  91     }
  92
  93     if (globals.forward_dll)
  94       fprintf (specfile, "%s forward %s %s.%s\n", ord_spec, sym->symbol,
  95                globals.forward_dll, sym->symbol);
  96     else
  97       fprintf (specfile, "%s stub %s\n", ord_spec, sym->symbol);
  98   }
  99   else
 100   {
 101     unsigned int i = sym->flags & SYM_THISCALL ? 1 : 0;
 102
 103     fprintf (specfile, "%s %s %s(", ord_spec, sym->varargs ? "varargs" :
 104              symbol_get_call_convention(sym), sym->symbol);
 105
 106     for (; i < sym->argc; i++)
 107       fprintf (specfile, " %s", symbol_get_spec_type(sym, i));
 108
 109     if (sym->argc)
 110       fputc (' ', specfile);
 111     fputs (") ", specfile);
 112
 113     if (sym->flags & SYM_THISCALL)
 114       fputs ("__thiscall_", specfile);
 115     fprintf (specfile, "%s_%s", OUTPUT_UC_DLL_NAME, sym->function_name);
 116
 117     fputc ('\n',specfile);
 118   }
 119 }
 120
 121
 122 /*******************************************************************
 123  *         output_spec_postamble
 124  *
 125  * Write the last part of the .spec file
 126  */
 127 static void output_spec_postamble (void)
 128 {
 129   if (specfile)
 130     fclose (specfile);
 131   specfile = NULL;
 132 }
 133
 134
 135 /*******************************************************************
 136  *         output_header_preamble
 137  *
 138  * Write the first part of the .h file
 139  */
 140 void  output_header_preamble (void)
 141 {
 142   if (!globals.do_code)
 143       return;
 144
 145   hfile = open_file (OUTPUT_DLL_NAME, "_dll.h", "w");
 146
 147   atexit (output_header_postamble);
 148
 149   fprintf (hfile,
 150            "/*\n * %s.dll\n *\n * Generated from %s.dll by winedump.\n *\n"
 151            " * DO NOT SEND GENERATED DLLS FOR INCLUSION INTO WINE !\n *\n */"
 152            "\n#ifndef __WINE_%s_DLL_H\n#define __WINE_%s_DLL_H\n\n"
 153            "#include \"windef.h\"\n#include \"wine/debug.h\"\n"
 154            "#include \"winbase.h\"\n#include \"winnt.h\"\n\n\n",
 155            OUTPUT_DLL_NAME, OUTPUT_DLL_NAME, OUTPUT_UC_DLL_NAME,
 156            OUTPUT_UC_DLL_NAME);
 157 }
 158
 159
 160 /*******************************************************************
 161  *         output_header_symbol
 162  *
 163  * Write a symbol to the .h file
 164  */
 165 void  output_header_symbol (const parsed_symbol *sym)
 166 {
 167   if (!globals.do_code)
 168       return;
 169
 170   assert (hfile);
 171   assert (sym && sym->symbol);
 172
 173   if (!globals.do_code)
 174     return;
 175
 176   if (sym->flags & SYM_DATA)
 177     return;
 178
 179   if (!sym->function_name)
 180     fprintf (hfile, "/* __%s %s_%s(); */\n", symbol_get_call_convention(sym),
 181              OUTPUT_UC_DLL_NAME, sym->symbol);
 182   else
 183   {
 184     output_prototype (hfile, sym);
 185     fputs (";\n", hfile);
 186   }
 187 }
 188
 189
 190 /*******************************************************************
 191  *         output_header_postamble
 192  *
 193  * Write the last part of the .h file
 194  */
 195 static void output_header_postamble (void)
 196 {
 197   if (hfile)
 198   {
 199     fprintf (hfile, "\n\n\n#endif\t/* __WINE_%s_DLL_H */\n",
 200              OUTPUT_UC_DLL_NAME);
 201     fclose (hfile);
 202     hfile = NULL;
 203   }
 204 }
 205
 206
 207 /*******************************************************************
 208  *         output_c_preamble
 209  *
 210  * Write the first part of the .c file
 211  */
 212 void  output_c_preamble (void)
 213 {
 214   cfile = open_file (OUTPUT_DLL_NAME, "_main.c", "w");
 215
 216   atexit (output_c_postamble);
 217
 218   fprintf (cfile,
 219            "/*\n * %s.dll\n *\n * Generated from %s by winedump.\n *\n"
 220            " * DO NOT SUBMIT GENERATED DLLS FOR INCLUSION INTO WINE!\n *\n */"
 221            "\n\n#include \"config.h\"\n\n#include <stdarg.h>\n\n"
 222            "#include \"windef.h\"\n#include \"winbase.h\"\n",
 223            OUTPUT_DLL_NAME, globals.input_name);
 224
 225   if (globals.do_code)
 226     fprintf (cfile, "#include \"%s_dll.h\"\n", OUTPUT_DLL_NAME);
 227
 228   fprintf (cfile,"#include \"wine/debug.h\"\n\nWINE_DEFAULT_DEBUG_CHANNEL(%s);\n\n",
 229            OUTPUT_DLL_NAME);
 230
 231   if (globals.forward_dll)
 232   {
 233     if (VERBOSE)
 234       puts ("Creating a forwarding DLL");
 235
 236     fputs ("\nHMODULE hDLL=0;    /* DLL to call */\n\n", cfile);
 237
 238     fprintf (cfile,
 239            "BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, void *reserved)\n{\n"
 240            "    TRACE(\"(%%p, %%u, %%p)\\n\", instance, reason, reserved);\n\n"
 241            "    switch (reason)\n"
 242            "    {\n"
 243            "        case DLL_PROCESS_ATTACH:\n"
 244            "            hDLL = LoadLibraryA(\"%s\");\n"
 245            "            TRACE(\"Forwarding DLL (%s) loaded (%%p)\\n\", hDLL);\n"
 246            "            DisableThreadLibraryCalls(instance);\n"
 247            "            break;\n"
 248            "        case DLL_PROCESS_DETACH:\n"
 249            "            FreeLibrary(hDLL);\n"
 250            "            TRACE(\"Forwarding DLL (%s) freed\\n\");\n"
 251            "            break;\n"
 252            "    }\n\n"
 253            "    return TRUE;\n}\n",
 254            globals.forward_dll, globals.forward_dll, globals.forward_dll);
 255   }
 256 }
 257
 258
 259 /*******************************************************************
 260  *         output_c_symbol
 261  *
 262  * Write a symbol to the .c file
 263  */
 264 void  output_c_symbol (const parsed_symbol *sym)
 265 {
 266   unsigned int i, start = sym->flags & SYM_THISCALL ? 1 : 0;
 267   BOOL is_void;
 268   static BOOL has_thiscall = FALSE;
 269
 270   assert (cfile);
 271   assert (sym && sym->symbol);
 272
 273   if (!globals.do_code)
 274     return;
 275
 276   if (sym->flags & SYM_DATA)
 277   {
 278     fprintf (cfile, "/* FIXME: Move to top of file */\n%s;\n\n",
 279              sym->arg_text[0]);
 280     return;
 281   }
 282
 283   if (sym->flags & SYM_THISCALL && !has_thiscall)
 284   {
 285     fputs ("#ifdef __i386__  /* thiscall functions are i386-specific */\n\n"
 286            "#define THISCALL(func) __thiscall_ ## func\n"
 287            "#define THISCALL_NAME(func) __ASM_NAME(\"__thiscall_\" #func)\n"
 288            "#define DEFINE_THISCALL_WRAPPER(func) \\\n"
 289            "\textern void THISCALL(func)(); \\\n"
 290            "\t__ASM_GLOBAL_FUNC(__thiscall_ ## func, \\\n"
 291            "\t\t\t\"popl %eax\\n\\t\" \\\n"
 292            "\t\t\t\"pushl %ecx\\n\\t\" \\\n"
 293            "\t\t\t\"pushl %eax\\n\\t\" \\\n"
 294            "\t\t\t\"jmp \" __ASM_NAME(#func) )\n"
 295            "#else /* __i386__ */\n\n"
 296            "#define THISCALL(func) func\n"
 297            "#define THISCALL_NAME(func) __ASM_NAME(#func)\n"
 298            "#define DEFINE_THISCALL_WRAPPER(func) /* nothing */\n\n"
 299            "#endif /* __i386__ */\n\n", cfile);
 300     has_thiscall = TRUE;
 301   }
 302
 303   output_c_banner(sym);
 304
 305   if (sym->flags & SYM_THISCALL)
 306     fprintf(cfile, "DEFINE_THISCALL_WRAPPER(%s)\n", sym->function_name);
 307
 308   if (!sym->function_name)
 309   {
 310     /* #ifdef'd dummy */
 311     fprintf (cfile, "#if 0\n__%s %s_%s()\n{\n\t/* %s in .spec */\n}\n#endif\n",
 312              symbol_get_call_convention(sym), OUTPUT_UC_DLL_NAME, sym->symbol,
 313              globals.forward_dll ? "@forward" : "@stub");
 314     return;
 315   }
 316
 317   is_void = !strcasecmp (sym->return_text, "void");
 318
 319   output_prototype (cfile, sym);
 320   fputs ("\n{\n", cfile);
 321
 322   if (!globals.do_trace)
 323   {
 324     fputs ("\tFIXME(\":stub\\n\");\n", cfile);
 325     if (!is_void)
 326         fprintf (cfile, "\treturn (%s) 0;\n", sym->return_text);
 327     fputs ("}\n", cfile);
 328     return;
 329   }
 330
 331   /* Tracing, maybe forwarding as well */
 332   if (globals.forward_dll)
 333   {
 334     /* Write variables for calling */
 335     if (sym->varargs)
 336       fputs("\tva_list valist;\n", cfile);
 337
 338     fprintf (cfile, "\t%s (__%s *pFunc)(", sym->return_text,
 339              symbol_get_call_convention(sym));
 340
 341     for (i = start; i < sym->argc; i++)
 342       fprintf (cfile, "%s%s", i > start ? ", " : "", sym->arg_text [i]);
 343
 344     fprintf (cfile, "%s);\n", sym->varargs ? ",..." : sym->argc == 1 &&
 345              sym->flags & SYM_THISCALL ? "" : sym->argc ? "" : "void");
 346
 347     if (!is_void)
 348       fprintf (cfile, "\t%s retVal;\n", sym->return_text);
 349
 350     fprintf (cfile, "\tpFunc=(void*)GetProcAddress(hDLL,\"%s\");\n",
 351              sym->symbol);
 352   }
 353
 354   /* TRACE input arguments */
 355   fprintf (cfile, "\tTRACE(\"(%s", !sym->argc ? "void" : "");
 356
 357   for (i = 0; i < sym->argc; i++)
 358     fprintf (cfile, "%s(%s)%s", i ? "," : "", sym->arg_text [i],
 359              get_format_str (sym->arg_type [i]));
 360
 361   fprintf (cfile, "%s): %s\\n\"", sym->varargs ? ",..." : "",
 362            globals.forward_dll ? "forward" : "stub");
 363
 364   for (i = 0; i < sym->argc; i++)
 365     if (sym->arg_type[i] != ARG_STRUCT)
 366       fprintf(cfile, ",%s%s%s%s", sym->arg_type[i] == ARG_LONG ? "(LONG)" : "",
 367               sym->arg_type[i] == ARG_WIDE_STRING ? "debugstr_w(" : "",
 368               sym->arg_name[i],
 369               sym->arg_type[i] == ARG_WIDE_STRING ? ")" : "");
 370
 371   fputs (");\n", cfile);
 372
 373   if (!globals.forward_dll)
 374   {
 375     if (!is_void)
 376       fprintf (cfile, "\treturn (%s) 0;\n", sym->return_text);
 377     fputs ("}\n", cfile);
 378     return;
 379   }
 380
 381   /* Call the DLL */
 382   if (sym->varargs)
 383     fprintf (cfile, "\tva_start(valist,%s);\n", sym->arg_name[sym->argc-1]);
 384
 385   fprintf (cfile, "\t%spFunc(", !is_void ? "retVal = " : "");
 386
 387   for (i = 0; i < sym->argc; i++)
 388     fprintf (cfile, "%s%s", i ? "," : "", sym->arg_name [i]);
 389
 390   fputs (sym->varargs ? ",valist);\n\tva_end(valist);" : ");", cfile);
 391
 392   /* TRACE return value */
 393   fprintf (cfile, "\n\tTRACE(\"Returned (%s)\\n\"",
 394            get_format_str (sym->return_type));
 395
 396   if (!is_void)
 397   {
 398     if (sym->return_type == ARG_WIDE_STRING)
 399       fputs (",debugstr_w(retVal)", cfile);
 400     else
 401       fprintf (cfile, ",%s%s", sym->return_type == ARG_LONG ? "(LONG)" : "",
 402                sym->return_type == ARG_STRUCT ? "" : "retVal");
 403     fputs (");\n\treturn retVal;\n", cfile);
 404   }
 405   else
 406     fputs (");\n", cfile);
 407
 408   fputs ("}\n", cfile);
 409 }
 410
 411
 412 /*******************************************************************
 413  *         output_c_postamble
 414  *
 415  * Write the last part of the .c file
 416  */
 417 static void output_c_postamble (void)
 418 {
 419   if (cfile)
 420     fclose (cfile);
 421   cfile = NULL;
 422 }
 423
 424
 425 /*******************************************************************
 426  *         output_makefile
 427  *
 428  * Write a Wine compatible makefile.in
 429  */
 430 void  output_makefile (void)
 431 {
 432   FILE *makefile = open_file ("Makefile", ".in", "w");
 433
 434   if (VERBOSE)
 435     puts ("Creating makefile");
 436
 437   fprintf (makefile,
 438            "# Generated from %s by winedump.\n"
 439            "MODULE    = %s.dll\n", globals.input_name, OUTPUT_DLL_NAME);
 440
 441   if (globals.forward_dll)
 442     fprintf (makefile, "IMPORTS   = %s", globals.forward_dll);
 443
 444   fprintf (makefile, "\n\nC_SRCS = \\\n\t%s_main.c\n", OUTPUT_DLL_NAME);
 445
 446   if (globals.forward_dll)
 447     fprintf (specfile,"#import %s.dll\n", globals.forward_dll);
 448
 449   fclose (makefile);
 450 }
 451
 452
 453 /*******************************************************************
 454  *         output_prototype
 455  *
 456  * Write a C prototype for a parsed symbol
 457  */
 458 void  output_prototype (FILE *file, const parsed_symbol *sym)
 459 {
 460   unsigned int i, start = sym->flags & SYM_THISCALL ? 1 : 0;
 461
 462   fprintf (file, "%s __%s %s_%s(", sym->return_text, symbol_get_call_convention(sym),
 463            OUTPUT_UC_DLL_NAME, sym->function_name);
 464
 465   if (!sym->argc || (sym->argc == 1 && sym->flags & SYM_THISCALL))
 466     fputs ("void", file);
 467   else
 468     for (i = start; i < sym->argc; i++)
 469       fprintf (file, "%s%s %s", i > start ? ", " : "", sym->arg_text [i],
 470                sym->arg_name [i]);
 471   if (sym->varargs)
 472     fputs (", ...", file);
 473   fputc (')', file);
 474 }
 475
 476
 477 /*******************************************************************
 478  *         output_c_banner
 479  *
 480  * Write a function banner to the .c file
 481  */
 482 void  output_c_banner (const parsed_symbol *sym)
 483 {
 484   char ord_spec[16];
 485   size_t i;
 486
 487   if (sym->ordinal >= 0)
 488     snprintf(ord_spec, sizeof (ord_spec), "%d", sym->ordinal);
 489   else
 490   {
 491     ord_spec[0] = '@';
 492     ord_spec[1] = '\0';
 493   }
 494
 495   fprintf (cfile, "/*********************************************************"
 496            "*********\n *\t\t%s (%s.%s)\n *\n", sym->symbol,
 497            OUTPUT_UC_DLL_NAME, ord_spec);
 498
 499   if (globals.do_documentation && sym->function_name)
 500   {
 501     fputs (" *\n * PARAMS\n *\n", cfile);
 502
 503     if (!sym->argc)
 504       fputs (" *  None.\n *\n", cfile);
 505     else
 506     {
 507       for (i = 0; i < sym->argc; i++)
 508         fprintf (cfile, " *  %s [%s]%s\n", sym->arg_name [i],
 509                  get_in_or_out(sym, i),
 510                  strcmp (sym->arg_name [i], "_this") ? "" :
 511                  "     Pointer to the class object (in ECX)");
 512
 513       if (sym->varargs)
 514         fputs (" *  ...[I]\n", cfile);
 515       fputs (" *\n", cfile);
 516     }
 517
 518     fputs (" * RETURNS\n *\n", cfile);
 519
 520     if (sym->return_text && !strcmp (sym->return_text, "void"))
 521       fputs (" *  Nothing.\n", cfile);
 522     else
 523       fprintf (cfile, " *  %s\n", sym->return_text);
 524   }
 525   fputs (" *\n */\n", cfile);
 526 }
 527
 528
 529 /*******************************************************************
 530  *         get_format_str
 531  *
 532  * Get a string containing the correct format string for a type
 533  */
 534 static const char *get_format_str (int type)
 535 {
 536   switch (type)
 537   {
 538   case ARG_VOID:        return "void";
 539   case ARG_FLOAT:       return "%f";
 540   case ARG_DOUBLE:      return "%g";
 541   case ARG_POINTER:     return "%p";
 542   case ARG_WIDE_STRING:
 543   case ARG_STRING:      return "%s";
 544   case ARG_LONG:        return "%ld";
 545   case ARG_STRUCT:      return "struct";
 546   }
 547   assert (0);
 548   return "";
 549 }
 550
 551
 552 /*******************************************************************
 553  *         get_in_or_out
 554  *
 555  * Determine if a parameter is In or In/Out
 556  */
 557 static const char *get_in_or_out (const parsed_symbol *sym, size_t arg)
 558 {
 559   assert (sym && arg < sym->argc);
 560   assert (globals.do_documentation);
 561
 562   if (sym->arg_flag [arg] & CT_CONST)
 563     return "In";
 564
 565   switch (sym->arg_type [arg])
 566   {
 567   case ARG_FLOAT:
 568   case ARG_DOUBLE:
 569   case ARG_LONG:
 570   case ARG_STRUCT:      return "In";
 571   case ARG_POINTER:
 572   case ARG_WIDE_STRING:
 573   case ARG_STRING:      return "In/Out";
 574   }
 575   assert (0);
 576   return "";
 577 }