2 * Copyright 1993 Robert J. Amstadt
3 * Copyright 1995 Alexandre Julliard
4 * Copyright 1995 Martin von Loewis
15 /* ELF symbols do not have an underscore in front */
22 #define TYPE_INVALID 0
26 #define TYPE_PASCAL_16 4
28 #define TYPE_REGISTER 6
32 #define TYPE_STDCALL 10
34 #define MAX_ORDINALS 1299
36 /* Callback function used for stub functions */
37 #define STUB_CALLBACK "RELAY_Unimplemented"
39 typedef struct ordinal_definition_s
44 void *additional_data;
47 typedef struct ordinal_variable_definition_s
53 typedef struct ordinal_function_definition_s
57 char internal_name[80];
60 typedef struct ordinal_return_definition_s
66 static ORDDEF OrdinalDefinitions[MAX_ORDINALS];
68 char LowerDLLName[80];
69 char UpperDLLName[80];
75 char *ParseBuffer = NULL;
80 static int debugging = 1;
82 /* Offset of register relative to the end of the context struct */
83 #define CONTEXTOFFSET(reg) \
84 ((int)&(((struct sigcontext_struct *)1)->reg) - 1 \
85 - sizeof(struct sigcontext_struct))
87 static int IsNumberString(char *s)
96 static char *strlower(char *s)
100 for(p = s; *p != '\0'; p++)
106 static char *strupper(char *s)
110 for(p = s; *p != '\0'; p++)
116 static char * GetTokenInLine(void)
121 if (ParseNext != ParseBuffer)
123 if (ParseSaveChar == '\0')
125 *ParseNext = ParseSaveChar;
129 * Remove initial white space.
131 for (p = ParseNext; isspace(*p); p++)
134 if ((*p == '\0') || (*p == '#'))
141 if (*token != '(' && *token != ')')
142 while (*p != '\0' && *p != '(' && *p != ')' && !isspace(*p))
152 static char * GetToken(void)
156 if (ParseBuffer == NULL)
158 ParseBuffer = malloc(512);
159 ParseNext = ParseBuffer;
163 if (fgets(ParseBuffer, 511, SpecFp) == NULL)
165 if (ParseBuffer[0] != '#')
170 while ((token = GetTokenInLine()) == NULL)
172 ParseNext = ParseBuffer;
176 if (fgets(ParseBuffer, 511, SpecFp) == NULL)
178 if (ParseBuffer[0] != '#')
186 static int ParseVariable(int ordinal, int type)
190 char export_name[80];
195 int value_array_size;
197 strcpy(export_name, GetToken());
202 fprintf(stderr, "%d: Expected '(' got '%s'\n", Line, token);
207 value_array_size = 25;
208 value_array = malloc(sizeof(*value_array) * value_array_size);
210 while ((token = GetToken()) != NULL)
215 value_array[n_values++] = strtol(token, &endptr, 0);
216 if (n_values == value_array_size)
218 value_array_size += 25;
219 value_array = realloc(value_array,
220 sizeof(*value_array) * value_array_size);
223 if (endptr == NULL || *endptr != '\0')
225 fprintf(stderr, "%d: Expected number value, got '%s'\n", Line,
233 fprintf(stderr, "%d: End of file in variable declaration\n", Line);
237 if (ordinal >= MAX_ORDINALS)
239 fprintf(stderr, "%d: Ordinal number too large\n", Line);
243 odp = &OrdinalDefinitions[ordinal];
245 strcpy(odp->export_name, export_name);
247 vdp = malloc(sizeof(*vdp));
248 odp->additional_data = vdp;
250 vdp->n_values = n_values;
251 vdp->values = realloc(value_array, sizeof(*value_array) * n_values);
256 static int ParseExportFunction(int ordinal, int type)
263 odp = &OrdinalDefinitions[ordinal];
264 strcpy(odp->export_name, GetToken());
266 fdp = malloc(sizeof(*fdp));
267 odp->additional_data = fdp;
272 fprintf(stderr, "%d: Expected '(' got '%s'\n", Line, token);
276 for (i = 0; i < 16; i++)
282 if (!strcmp(token, "byte") || !strcmp(token, "word"))
283 fdp->arg_types[i] = 'w';
284 else if (!strcmp(token, "s_byte") || !strcmp(token, "s_word"))
285 fdp->arg_types[i] = 's';
286 else if (!strcmp(token, "long") || !strcmp(token, "segptr"))
287 fdp->arg_types[i] = 'l';
288 else if (!strcmp(token, "ptr"))
289 fdp->arg_types[i] = 'p';
292 fprintf(stderr, "%d: Unknown variable type '%s'\n", Line, token);
296 fdp->arg_types[i] = '\0';
298 strcpy(fdp->internal_name, GetToken());
302 static int ParseEquate(int ordinal)
309 odp = &OrdinalDefinitions[ordinal];
310 strcpy(odp->export_name, GetToken());
313 value = strtol(token, &endptr, 0);
314 if (endptr == NULL || *endptr != '\0')
316 fprintf(stderr, "%d: Expected number value, got '%s'\n", Line,
321 odp->type = TYPE_ABS;
322 odp->additional_data = (void *) value;
327 static int ParseReturn(int ordinal)
334 rdp = malloc(sizeof(*rdp));
336 odp = &OrdinalDefinitions[ordinal];
337 strcpy(odp->export_name, GetToken());
338 odp->type = TYPE_RETURN;
339 odp->additional_data = rdp;
342 rdp->arg_size = strtol(token, &endptr, 0);
343 if (endptr == NULL || *endptr != '\0')
345 fprintf(stderr, "%d: Expected number value, got '%s'\n", Line,
351 rdp->ret_value = strtol(token, &endptr, 0);
352 if (endptr == NULL || *endptr != '\0')
354 fprintf(stderr, "%d: Expected number value, got '%s'\n", Line,
363 static int ParseStub( int ordinal )
368 odp = &OrdinalDefinitions[ordinal];
369 strcpy( odp->export_name, GetToken() );
370 odp->type = TYPE_STUB;
371 fdp = malloc(sizeof(*fdp));
372 odp->additional_data = fdp;
373 fdp->arg_types[0] = '\0';
374 strcpy( fdp->internal_name, STUB_CALLBACK );
379 static int ParseOrdinal(int ordinal)
383 if (ordinal >= MAX_ORDINALS)
385 fprintf(stderr, "%d: Ordinal number too large\n", Line);
388 if (ordinal > Limit) Limit = ordinal;
393 fprintf(stderr, "%d: Expected type after ordinal\n", Line);
397 if (strcmp(token, "byte") == 0)
398 return ParseVariable(ordinal, TYPE_BYTE);
399 else if (strcmp(token, "word") == 0)
400 return ParseVariable(ordinal, TYPE_WORD);
401 else if (strcmp(token, "long") == 0)
402 return ParseVariable(ordinal, TYPE_LONG);
403 else if (strcmp(token, "p") == 0)
404 return ParseExportFunction(ordinal, TYPE_PASCAL);
405 else if (strcmp(token, "pascal") == 0)
406 return ParseExportFunction(ordinal, TYPE_PASCAL);
407 else if (strcmp(token, "pascal16") == 0)
408 return ParseExportFunction(ordinal, TYPE_PASCAL_16);
409 else if (strcmp(token, "register") == 0)
410 return ParseExportFunction(ordinal, TYPE_REGISTER);
411 else if (strcmp(token, "stdcall") == 0)
412 return ParseExportFunction(ordinal, TYPE_STDCALL);
413 else if (strcmp(token, "equate") == 0)
414 return ParseEquate(ordinal);
415 else if (strcmp(token, "return") == 0)
416 return ParseReturn(ordinal);
417 else if (strcmp(token, "stub") == 0)
418 return ParseStub(ordinal);
422 "%d: Expected type after ordinal, found '%s' instead\n",
428 static int ParseTopLevel(void)
432 while ((token = GetToken()) != NULL)
434 if (strcmp(token, "name") == 0)
436 strcpy(LowerDLLName, GetToken());
437 strlower(LowerDLLName);
439 strcpy(UpperDLLName, LowerDLLName);
440 strupper(UpperDLLName);
442 else if (strcmp(token, "id") == 0)
445 if (!IsNumberString(token))
447 fprintf(stderr, "%d: Expected number after id\n", Line);
453 else if (strcmp(token, "base") == 0)
456 if (!IsNumberString(token))
458 fprintf(stderr, "%d: Expected number after base\n", Line);
464 else if (IsNumberString(token))
469 ordinal = atoi(token);
470 if ((rv = ParseOrdinal(ordinal)) < 0)
476 "%d: Expected name, id, length or ordinal\n", Line);
485 static int OutputVariableCode( char *storage, ORDDEF *odp )
490 vdp = odp->additional_data;
491 printf( "\t.data\n" );
492 for (i = 0; i < vdp->n_values; i++)
495 printf( "\t%s\t", storage);
497 printf( "%d", vdp->values[i]);
499 if ((i & 7) == 7 || i == vdp->n_values - 1) printf( "\n");
503 printf( "\t.text\n" );
504 return vdp->n_values;
508 /*******************************************************************
511 * Build the in-memory representation of the module, and dump it
512 * as a byte stream into the assembly code.
514 static void BuildModule( int max_code_offset, int max_data_offset )
520 SEGTABLEENTRY *pSegment;
521 LOADEDFILEINFO *pFileInfo;
527 * LOADEDFILEINFO File information
528 * SEGTABLEENTRY Segment 1 (code)
529 * SEGTABLEENTRY Segment 2 (data)
530 * WORD[2] Resource table (empty)
531 * BYTE[2] Imported names (empty)
532 * BYTE[n] Resident names table
533 * BYTE[n] Entry table
536 buffer = malloc( 0x10000 );
538 pModule = (NE_MODULE *)buffer;
539 pModule->magic = NE_SIGNATURE;
542 pModule->flags = NE_FFLAGS_SINGLEDATA | NE_FFLAGS_LIBMODULE;
544 pModule->heap_size = 0xffff;
545 pModule->stack_size = 0;
550 pModule->seg_count = 2;
551 pModule->modref_count = 0;
552 pModule->nrname_size = 0;
553 pModule->modref_table = 0;
554 pModule->nrname_fpos = 0;
555 pModule->moveable_entries = 0;
556 pModule->alignment = 0;
557 pModule->truetype = 0;
558 pModule->os_flags = NE_OSFLAGS_WINDOWS;
559 pModule->misc_flags = 0;
560 pModule->dlls_to_init = 0;
561 pModule->nrname_handle = 0;
562 pModule->min_swap_area = 0;
563 pModule->expected_version = 0x030a;
565 /* File information */
567 pFileInfo = (LOADEDFILEINFO *)(pModule + 1);
568 pModule->fileinfo = (int)pFileInfo - (int)pModule;
569 pFileInfo->length = sizeof(LOADEDFILEINFO) + strlen(UpperDLLName) + 3;
570 pFileInfo->fixed_media = 0;
571 pFileInfo->error = 0;
574 sprintf( pFileInfo->filename, "%s.DLL", UpperDLLName );
575 pstr = (char *)pFileInfo + pFileInfo->length + 1;
579 pSegment = (SEGTABLEENTRY *)pstr;
580 pModule->seg_table = (int)pSegment - (int)pModule;
581 pSegment->filepos = 0;
582 pSegment->size = max_code_offset;
584 pSegment->minsize = max_code_offset;
585 pSegment->selector = 0;
588 pModule->dgroup_entry = (int)pSegment - (int)pModule;
589 pSegment->filepos = 0;
590 pSegment->size = max_data_offset;
591 pSegment->flags = NE_SEGFLAGS_DATA;
592 pSegment->minsize = max_data_offset;
593 pSegment->selector = 0;
598 pword = (WORD *)pSegment;
599 pModule->res_table = (int)pword - (int)pModule;
603 /* Imported names table */
605 pstr = (char *)pword;
606 pModule->import_table = (int)pstr - (int)pModule;
610 /* Resident names table */
612 pModule->name_table = (int)pstr - (int)pModule;
613 /* First entry is module name */
614 *pstr = strlen(UpperDLLName );
615 strcpy( pstr + 1, UpperDLLName );
618 pstr += sizeof(WORD);
619 /* Store all ordinals */
620 odp = OrdinalDefinitions + 1;
621 for (i = 1; i <= Limit; i++, odp++)
623 if (!odp->export_name[0]) continue;
624 *pstr = strlen( odp->export_name );
625 strcpy( pstr + 1, odp->export_name );
626 strupper( pstr + 1 );
629 pstr += sizeof(WORD);
635 pModule->entry_table = (int)pstr - (int)pModule;
637 odp = OrdinalDefinitions + 1;
638 for (i = 1; i <= Limit; i++, odp++)
645 selector = 0; /* Invalid selector */
653 selector = 1; /* Code selector */
659 selector = 2; /* Data selector */
663 selector = 0xfe; /* Constant selector */
667 /* create a new bundle if necessary */
668 if (!bundle || (bundle[0] >= 254) || (bundle[1] != selector))
672 bundle[1] = selector;
680 *(WORD *)pstr = odp->offset;
681 pstr += sizeof(WORD);
686 /* Dump the module content */
688 printf( "\t.data\n" );
689 printf( "\t.globl " PREFIX "%s_Module_Start\n", UpperDLLName );
690 printf( PREFIX "%s_Module_Start:\n", UpperDLLName );
691 size = (int)pstr - (int)pModule;
692 for (i = 0, pstr = buffer; i < size; i++, pstr++)
694 if (!(i & 7)) printf( "\t.byte " );
695 printf( "%d%c", *pstr, ((i & 7) != 7) ? ',' : '\n' );
697 if (i & 7) printf( "0\n" );
698 printf( "\t.globl " PREFIX "%s_Module_End\n", UpperDLLName );
699 printf( PREFIX "%s_Module_End:\n", UpperDLLName );
703 static void BuildSpec32Files( char *specname )
710 SpecFp = fopen( specname, "r");
713 fprintf(stderr, "Could not open specification file, '%s'\n", specname);
719 printf( "/* File generated automatically, do not edit! */\n" );
720 printf( "#include <sys/types.h>\n");
721 printf( "#include \"dlls.h\"\n");
722 printf( "#include \"pe_image.h\"\n");
723 printf( "#include \"winerror.h\"\n");
724 printf( "#include \"stddebug.h\"\n");
725 printf( "#include \"debug.h\"\n");
726 printf( "\nextern int RELAY32_Unimplemented();\n\n" );
728 odp = OrdinalDefinitions;
729 for (i = 0; i <= Limit; i++, odp++)
732 fdp = odp->additional_data;
733 rdp = odp->additional_data;
739 printf( "int %s_%d()\n{\n\t", UpperDLLName, i);
740 printf( "RELAY32_Unimplemented(\"%s\",%d);\n", UpperDLLName, i);
741 printf( "\t/*NOTREACHED*/\n\treturn 0;\n}\n\n");
744 argc=strlen(fdp->arg_types);
745 printf( "void %s_%d(", UpperDLLName, i);
746 for(argno=0;argno<argc;argno++)
748 switch(fdp->arg_types[argno])
750 case 'p': printf( "void *");break;
751 case 'l': printf( "int ");break;
753 fprintf(stderr, "Not supported argument type %c\n",
754 fdp->arg_types[argno]);
757 putchar( 'a'+argno );
758 if (argno!=argc-1) putchar( ',' );
761 printf( "\textern int %s();\n", fdp->internal_name );
762 printf( "\tdprintf_relay(stddeb,\"Entering %%s.%%s(");
763 for (argno=0;argno<argc;argno++) printf( "%%x ");
764 printf( ")\\n\", \"%s\", \"%s\"", UpperDLLName, odp->export_name);
765 for(argno=0;argno<argc;argno++) printf( ",%c", 'a'+argno);
766 printf( ");\n\t%s(", fdp->internal_name );
767 for(argno=0;argno<argc;argno++)
770 if (argno!=argc-1) putchar(',');
772 printf( ");\n\t__asm__ __volatile__(\"movl %%ebp,%%esp;"
773 "popl %%ebp;ret $%d\");\n}\n\n",
777 printf( "void %s_%d()\n{\n\t", UpperDLLName, i);
778 printf( "RELAY32_DebugEnter(\"%s\",\"%s\");\n\t",
779 UpperDLLName, odp->export_name);
780 printf( "WIN32_LastError=ERROR_CALL_NOT_IMPLEMENTED;\n");
781 printf( "\t__asm__ __volatile__ (\"movl %d,%%eax\");\n",
783 printf( "\t__asm__ __volatile__ (\"movl %%ebp,%%esp;popl %%ebp;"
784 "ret $%d\");\n}\n\n", rdp->arg_size);
787 fprintf(stderr,"build: function type %d not available for Win32\n",
793 printf( "static WIN32_function functions[%d+1]={\n", Limit);
795 odp = OrdinalDefinitions;
796 for (i = 0; i <= Limit; i++, odp++)
798 fdp = odp->additional_data;
799 rdp = odp->additional_data;
804 printf( "{0,%s_%d},\n",UpperDLLName, i);
809 printf( "{\"%s\",%s_%d},\n", odp->export_name, UpperDLLName, i);
812 fprintf(stderr, "build: implementation error: missing %d\n",
819 printf( "static WIN32_builtin dll={\"%s\",functions,%d,0};\n",
820 UpperDLLName, Limit);
822 printf( "void %s_Init(void)\n{\n",UpperDLLName);
823 printf( "\tdll.next=WIN32_builtin_list;\n");
824 printf( "\tWIN32_builtin_list=&dll;\n}");
828 static void BuildSpec16Files( char *specname )
834 int code_offset, data_offset;
836 SpecFp = fopen( specname, "r");
839 fprintf(stderr, "Could not open specification file, '%s'\n", specname);
845 printf( "/* File generated automatically; do not edit! */\n" );
846 printf( "\t.data\n" );
847 printf( "\t.globl " PREFIX "%s_Data_Start\n", UpperDLLName );
848 printf( PREFIX "%s_Data_Start:\n", UpperDLLName );
849 printf( "\t.word 0,0,0,0,0,0,0,0\n" );
851 printf( "\t.text\n" );
852 printf( "\t.globl " PREFIX "%s_Code_Start\n", UpperDLLName );
853 printf( PREFIX "%s_Code_Start:\n", UpperDLLName );
856 odp = OrdinalDefinitions;
857 for (i = 0; i <= Limit; i++, odp++)
859 fdp = odp->additional_data;
860 rdp = odp->additional_data;
865 odp->offset = 0xffff;
869 odp->offset = (int)odp->additional_data & 0xffff;
873 printf( "/* %s.%d */\n", UpperDLLName, i);
874 odp->offset = data_offset;
875 data_offset += OutputVariableCode( ".byte", odp);
879 printf( "/* %s.%d */\n", UpperDLLName, i);
880 odp->offset = data_offset;
881 data_offset += 2 * OutputVariableCode( ".word", odp);
885 printf( "/* %s.%d */\n", UpperDLLName, i);
886 odp->offset = data_offset;
887 data_offset += 4 * OutputVariableCode( ".long", odp);
891 printf( "/* %s.%d */\n", UpperDLLName, i);
892 printf( "\tmovw $%d,%%ax\n", rdp->ret_value & 0xffff );
893 printf( "\tmovw $%d,%%dx\n", (rdp->ret_value >> 16) & 0xffff);
894 printf( "\t.byte 0x66\n");
895 if (rdp->arg_size != 0)
896 printf( "\tlret $%d\n", rdp->arg_size);
899 odp->offset = code_offset;
900 code_offset += 10; /* Assembly code is 10 bytes long */
901 if (rdp->arg_size != 0) code_offset += 2;
908 printf( "/* %s.%d */\n", UpperDLLName, i);
909 printf( "\tpushw %%bp\n" );
910 printf( "\tpushl $0x%08x\n", (DLLId << 16) | i);
911 printf( "\tpushl $" PREFIX "%s\n", fdp->internal_name );
912 printf( "\tljmp $0x%04x, $" PREFIX "CallTo32_%s_%s\n\n",
914 (odp->type == TYPE_REGISTER) ? "regs" :
915 (odp->type == TYPE_PASCAL) ? "long" : "word",
922 odp->offset = code_offset;
923 code_offset += 24; /* Assembly code is 24 bytes long */
927 fprintf( stderr, "build: Unknown function type; please report.\n");
932 if (!code_offset) /* Make sure the code segment is not empty */
934 printf( "\t.byte 0\n" );
938 BuildModule( code_offset, data_offset );
942 /*******************************************************************
943 * BuildCall32LargeStack
945 * Build the function used to switch to the original 32-bit stack
946 * before calling a 32-bit function from 32-bit code. This is used for
947 * functions that need a large stack, like X bitmaps functions.
949 * The generated function has the following prototype:
950 * int CallTo32_LargeStack( int (*func)(), int nbargs, ... )
961 static void BuildCall32LargeStack(void)
963 /* Function header */
965 printf( "/**********\n" );
966 printf( " * " PREFIX "CallTo32_LargeStack\n" );
967 printf( " **********/\n" );
968 printf( "\t.align 4\n" );
969 printf( "\t.globl " PREFIX "CallTo32_LargeStack\n\n" );
970 printf( PREFIX "CallTo32_LargeStack:\n" );
974 printf( "\tpushl %%ebp\n" );
975 printf( "\tmovl %%esp,%%ebp\n" );
979 printf( "\tpushl %%ecx\n" );
980 printf( "\tpushl %%esi\n" );
981 printf( "\tpushl %%edi\n" );
983 /* Retrieve the original 32-bit stack pointer and switch to it if any */
985 printf( "\tmovl " PREFIX "IF1632_Original32_esp, %%eax\n" );
986 printf( "\torl %%eax,%%eax\n" );
987 printf( "\tje 0f\n" );
988 printf( "\tmovl %%eax,%%esp\n" );
991 /* Transfer the arguments */
993 printf( "\tleal 16(%%ebp),%%esi\n" );
994 printf( "\tmovl 12(%%ebp),%%ecx\n" );
995 printf( "\torl %%ecx,%%ecx\n" );
996 printf( "\tje 1f\n" );
997 printf( "\tshll $2,%%ecx\n" );
998 printf( "\tsubl %%ecx,%%esp\n" );
999 printf( "\tmovl %%esp,%%edi\n" );
1000 printf( "\tshrl $2,%%ecx\n" );
1001 printf( "\trep; movsl\n" );
1004 /* Call the function */
1006 printf( "\tcall 8(%%ebp)\n" );
1008 /* Switch back to the normal stack */
1010 printf( "\tleal -12(%%ebp),%%esp\n" );
1012 /* Restore registers and return */
1014 printf( "\tpopl %%edi\n" );
1015 printf( "\tpopl %%esi\n" );
1016 printf( "\tpopl %%ecx\n" );
1017 printf( "\tpopl %%ebp\n" );
1018 printf( "\tret\n" );
1022 /*******************************************************************
1023 * TransferArgs16To32
1025 * Get the arguments from the 16-bit stack and push them on the 32-bit stack.
1026 * The 16-bit stack layout is:
1034 static int TransferArgs16To32( char *args )
1036 int i, pos16, pos32;
1038 /* Save ebx first */
1040 printf( "\tpushl %%ebx\n" );
1042 /* Get the 32-bit stack pointer */
1044 printf( "\tmovl " PREFIX "IF1632_Saved32_esp,%%ebx\n" );
1046 /* Copy the arguments */
1048 pos16 = 6; /* skip bp and return address */
1051 for (i = strlen(args); i > 0; i--)
1056 case 'w': /* word */
1057 printf( "\tmovzwl %d(%%ebp),%%eax\n", pos16 );
1058 printf( "\tmovl %%eax,%d(%%ebx)\n", pos32 );
1062 case 's': /* s_word */
1063 printf( "\tmovswl %d(%%ebp),%%eax\n", pos16 );
1064 printf( "\tmovl %%eax,%d(%%ebx)\n", pos32 );
1068 case 'l': /* long */
1069 printf( "\tmovl %d(%%ebp),%%eax\n", pos16 );
1070 printf( "\tmovl %%eax,%d(%%ebx)\n", pos32 );
1075 /* Get the selector */
1076 printf( "\tmovw %d(%%ebp),%%ax\n", pos16 + 2 );
1077 /* Get the selector base */
1078 printf( "\tandl $0xfff8,%%eax\n" );
1079 printf( "\tmovl " PREFIX "ldt_copy(%%eax),%%eax\n" );
1080 printf( "\tmovl %%eax,%d(%%ebx)\n", pos32 );
1081 /* Add the offset */
1082 printf( "\tmovzwl %d(%%ebp),%%eax\n", pos16 );
1083 printf( "\taddl %%eax,%d(%%ebx)\n", pos32 );
1088 fprintf( stderr, "Unknown arg type '%c'\n", args[i-1] );
1094 printf( "\tpopl %%ebx\n" );
1096 return pos16 - 6; /* Return the size of the 16-bit args */
1100 /*******************************************************************
1103 * Build the context structure on the 32-bit stack.
1104 * The only valid registers in the context structure are:
1105 * eax, ebx, ecx, edx, esi, edi, ds, es, (some of the) flags
1107 static void BuildContext(void)
1109 /* Save ebx first */
1111 printf( "\tpushl %%ebx\n" );
1113 /* Get the 32-bit stack pointer */
1115 printf( "\tmovl " PREFIX "IF1632_Saved32_esp,%%ebx\n" );
1117 /* Store the registers */
1119 printf( "\tpopl %d(%%ebx)\n", CONTEXTOFFSET(sc_ebx) ); /* Get ebx from stack */
1120 printf( "\tmovl %%eax,%d(%%ebx)\n", CONTEXTOFFSET(sc_eax) );
1121 printf( "\tmovl %%ecx,%d(%%ebx)\n", CONTEXTOFFSET(sc_ecx) );
1122 printf( "\tmovl %%edx,%d(%%ebx)\n", CONTEXTOFFSET(sc_edx) );
1123 printf( "\tmovl %%esi,%d(%%ebx)\n", CONTEXTOFFSET(sc_esi) );
1124 printf( "\tmovl %%edi,%d(%%ebx)\n", CONTEXTOFFSET(sc_edi) );
1125 printf( "\tmovw -10(%%ebp),%%ax\n" ); /* Get saved ds from stack */
1126 printf( "\tmovw %%ax,%d(%%ebx)\n", CONTEXTOFFSET(sc_ds) );
1127 printf( "\tmovw -12(%%ebp),%%ax\n" ); /* Get saved es from stack */
1128 printf( "\tmovw %%ax,%d(%%ebx)\n", CONTEXTOFFSET(sc_es) );
1129 printf( "\tpushfl\n" );
1131 printf( "\tpopl %d(%%ebx)\n", CONTEXTOFFSET(sc_eflags) );
1133 printf( "\tpopl %d(%%ebx)\n", CONTEXTOFFSET(sc_efl) );
1138 /*******************************************************************
1141 * Restore the registers from the context structure
1143 static void RestoreContext(void)
1145 /* Get the 32-bit stack pointer */
1147 printf( "\tmovl " PREFIX "IF1632_Saved32_esp,%%ebx\n" );
1149 /* Restore the registers */
1151 printf( "\tmovl %d(%%ebx),%%ecx\n", CONTEXTOFFSET(sc_ecx) );
1152 printf( "\tmovl %d(%%ebx),%%edx\n", CONTEXTOFFSET(sc_edx) );
1153 printf( "\tmovl %d(%%ebx),%%esi\n", CONTEXTOFFSET(sc_esi) );
1154 printf( "\tmovl %d(%%ebx),%%edi\n", CONTEXTOFFSET(sc_edi) );
1155 printf( "\tpopl %%eax\n" ); /* Remove old ds and es from stack */
1156 printf( "\tpushw %d(%%ebx)\n", CONTEXTOFFSET(sc_ds) ); /* Push new ds */
1157 printf( "\tpushw %d(%%ebx)\n", CONTEXTOFFSET(sc_es) ); /* Push new es */
1159 printf( "\tpushl %d(%%ebx)\n", CONTEXTOFFSET(sc_eflags) );
1161 printf( "\tpushl %d(%%ebx)\n", CONTEXTOFFSET(sc_efl) );
1163 printf( "\tpopfl\n" );
1164 printf( "\tmovl %d(%%ebx),%%eax\n", CONTEXTOFFSET(sc_eax) );
1165 printf( "\tmovl %d(%%ebx),%%ebx\n", CONTEXTOFFSET(sc_ebx) );
1169 /*******************************************************************
1172 * Build a 32-bit callback function. The syntax of the function
1173 * profile is: type_xxxxx, where 'type' is one of 'regs', 'word' or
1174 * 'long' and each 'x' is an argument ('w'=word, 's'=signed word,
1175 * 'l'=long, 'p'=pointer).
1176 * For register functions, the arguments are ignored, but they are still
1177 * removed from the stack upon return.
1179 * Stack layout upon entry to the callback function:
1181 * (sp+14) first 16-bit arg
1185 * (sp+4) dll_id+ordinal (long)
1186 * (sp) entrypoint (long)
1189 static void BuildCall32Func( char *profile )
1194 char *args = profile + 5;
1196 /* Parse function type */
1198 if (!strncmp( "word_", profile, 5 )) short_ret = 1;
1199 else if (!strncmp( "regs_", profile, 5 )) reg_func = 1;
1200 else if (strncmp( "long_", profile, 5 ))
1202 fprintf( stderr, "Invalid function name '%s', ignored\n", profile );
1206 /* Function header */
1208 printf( "/**********\n" );
1209 printf( " * " PREFIX "CallTo32_%s\n", profile );
1210 printf( " **********/\n" );
1211 printf( "\t.align 4\n" );
1212 printf( "\t.globl " PREFIX "CallTo32_%s\n\n", profile );
1213 printf( PREFIX "CallTo32_%s:\n", profile );
1215 /* Setup bp to point to its copy on the stack */
1217 printf( "\tmovzwl %%sp,%%ebp\n" );
1218 printf( "\taddw $8,%%bp\n" );
1220 /* Save 16-bit ds and es */
1222 printf( "\tpushw %%ds\n" );
1223 printf( "\tpushw %%es\n" );
1225 /* Restore 32-bit ds and es */
1227 printf( "\tpushl $0x%04x%04x\n", WINE_DATA_SELECTOR, WINE_DATA_SELECTOR );
1228 printf( "\tpopw %%ds\n" );
1229 printf( "\tpopw %%es\n" );
1232 /* Save the 16-bit stack */
1234 printf( "\tpushw " PREFIX "IF1632_Saved16_sp\n" );
1235 printf( "\tpushw " PREFIX "IF1632_Saved16_ss\n" );
1236 printf( "\tmovw %%ss," PREFIX "IF1632_Saved16_ss\n" );
1237 printf( "\tmovw %%sp," PREFIX "IF1632_Saved16_sp\n" );
1239 /* Transfer the arguments */
1241 if (reg_func) BuildContext();
1242 else if (*args) argsize = TransferArgs16To32( args );
1244 /* Get the address of the API function */
1246 printf( "\tmovl -8(%%ebp),%%eax\n" );
1248 /* If necessary, save %edx over the API function address */
1250 if (!reg_func && short_ret)
1251 printf( "\tmovl %%edx,-8(%%ebp)\n" );
1253 /* Switch to the 32-bit stack */
1255 printf( "\tmovl " PREFIX "IF1632_Saved32_esp,%%ebp\n" );
1256 printf( "\tpushw %%ds\n" );
1257 printf( "\tpopw %%ss\n" );
1258 printf( "\tleal -%d(%%ebp),%%esp\n",
1259 reg_func ? sizeof(struct sigcontext_struct) : 4 * strlen(args) );
1261 /* Setup %ebp to point to the previous stack frame (built by CallTo16) */
1263 printf( "\taddl $24,%%ebp\n" );
1265 /* Print the debug information before the call */
1269 printf( "\tpushl %%eax\n" );
1270 printf( "\tpushl $CALL32_Str_%s\n", profile );
1271 printf( "\tpushl $%d\n", reg_func ? 2 : (short_ret ? 1 : 0) );
1272 printf( "\tcall " PREFIX "RELAY_DebugCall32\n" );
1273 printf( "\tpopl %%eax\n" );
1274 printf( "\tpopl %%eax\n" );
1275 printf( "\tpopl %%eax\n" );
1278 /* Call the entry point */
1280 printf( "\tcall %%eax\n" );
1282 /* Print the debug information after the call */
1286 printf( "\tpushl %%eax\n" );
1287 printf( "\tpushl $%d\n", reg_func ? 2 : (short_ret ? 1 : 0) );
1288 printf( "\tcall " PREFIX "RELAY_DebugReturn\n" );
1289 printf( "\tpopl %%eax\n" );
1290 printf( "\tpopl %%eax\n" );
1293 /* Restore the 16-bit stack */
1295 printf( "\tmovw " PREFIX "IF1632_Saved16_ss,%%ss\n" );
1296 printf( "\tmovw " PREFIX "IF1632_Saved16_sp,%%sp\n" );
1297 printf( "\tpopw " PREFIX "IF1632_Saved16_ss\n" );
1298 printf( "\tpopw " PREFIX "IF1632_Saved16_sp\n" );
1302 /* Restore registers from the context structure */
1305 /* Calc the arguments size */
1319 fprintf( stderr, "Unknown arg type '%c'\n", *args );
1325 /* Restore ds and es */
1327 printf( "\tpopw %%es\n" );
1328 printf( "\tpopw %%ds\n" );
1330 /* Get the return value into dx:ax and clean up the stack */
1336 printf( "\tpopl %%edx\n" ); /* Restore %edx */
1337 printf( "\taddl $4,%%esp\n" ); /* Remove DLL id and ordinal */
1341 printf( "\tpushl %%eax\n" );
1342 printf( "\tpopw %%ax\n" );
1343 printf( "\tpopw %%dx\n" );
1344 /* Remove API entry point, DLL id and ordinal from the stack */
1345 printf( "\taddl $8,%%esp\n" );
1350 /* Remove API entry point, DLL id and ordinal from the stack, */
1351 /* but take care not to change the value of the carry flag. */
1353 printf( "\tpopl %%ebp\n" );
1354 printf( "\tpopl %%ebp\n" );
1359 printf( "\tpopw %%bp\n" );
1361 /* Remove the arguments and return */
1365 printf( "\t.byte 0x66\n" );
1366 printf( "\tlret $%d\n", argsize );
1370 printf( "\t.byte 0x66\n" );
1371 printf( "\tlret\n" );
1376 /*******************************************************************
1379 * Build a 16-bit callback function.
1381 * Stack frame of the callback function:
1385 * (ebp+16) 16-bit ds
1386 * (ebp+12) func to call
1387 * (ebp+8) code selector
1388 * (ebp+4) return address
1389 * (ebp) previous ebp
1391 * Prototypes for the CallTo16 functions:
1392 * extern WORD CallTo16_word_xxx( FARPROC func, WORD ds, args... );
1393 * extern LONG CallTo16_long_xxx( FARPROC func, WORD ds, args... );
1394 * extern void CallTo16_regs_( FARPROC func, WORD ds, WORD es, WORD bp,
1395 * WORD ax, WORD bx, WORD cx, WORD dx,
1396 * WORD si, WORD di );
1398 static void BuildCall16Func( char *profile )
1402 char *args = profile + 5;
1404 if (!strncmp( "word_", profile, 5 )) short_ret = 1;
1405 else if (!strncmp( "regs_", profile, 5 )) reg_func = short_ret = 1;
1406 else if (strncmp( "long_", profile, 5 ))
1408 fprintf( stderr, "Invalid function name '%s', ignored\n", profile );
1412 /* Function header */
1414 printf( "/**********\n" );
1415 printf( " * " PREFIX "CallTo16_%s\n", profile );
1416 printf( " **********/\n" );
1417 printf( "\t.align 4\n" );
1418 printf( "\t.globl " PREFIX "CallTo16_%s\n\n", profile );
1419 printf( PREFIX "CallTo16_%s:\n", profile );
1421 /* Push code selector before return address to simulate a lcall */
1423 printf( "\tpopl %%eax\n" );
1424 printf( "\tpushl $0x%04x\n", WINE_CODE_SELECTOR );
1425 printf( "\tpushl %%eax\n" );
1429 printf( "\tpushl %%ebp\n" );
1430 printf( "\tmovl %%esp,%%ebp\n" );
1432 /* Save the 32-bit registers */
1434 printf( "\tpushl %%ebx\n" );
1435 printf( "\tpushl %%ecx\n" );
1436 printf( "\tpushl %%edx\n" );
1437 printf( "\tpushl %%esi\n" );
1438 printf( "\tpushl %%edi\n" );
1440 /* Save the 32-bit stack */
1442 printf( "\tpushl " PREFIX "IF1632_Saved32_esp\n" );
1443 printf( "\tmovl %%esp," PREFIX "IF1632_Saved32_esp\n" );
1444 printf( "\tmovl %%ebp,%%ebx\n" );
1446 /* Print debugging info */
1450 /* Push the address of the first argument */
1451 printf( "\tmovl %%ebx,%%eax\n" );
1452 printf( "\taddl $12,%%eax\n" );
1453 printf( "\tpushl $%d\n", reg_func ? 8 : strlen(args) );
1454 printf( "\tpushl %%eax\n" );
1455 printf( "\tcall " PREFIX "RELAY_DebugCall16\n" );
1456 printf( "\tpopl %%eax\n" );
1457 printf( "\tpopl %%eax\n" );
1460 /* Switch to the 16-bit stack */
1462 printf( "\tmovw " PREFIX "IF1632_Saved16_ss,%%ss\n" );
1463 printf( "\tmovw " PREFIX "IF1632_Saved16_sp,%%sp\n" );
1465 /* Transfer the arguments */
1469 /* Get the registers. ebx is handled later on. */
1470 printf( "\tpushw 20(%%ebx)\n" );
1471 printf( "\tpopw %%es\n" );
1472 printf( "\tmovl 24(%%ebx),%%ebp\n" );
1473 printf( "\tmovl 28(%%ebx),%%eax\n" );
1474 printf( "\tmovl 36(%%ebx),%%ecx\n" );
1475 printf( "\tmovl 40(%%ebx),%%edx\n" );
1476 printf( "\tmovl 44(%%ebx),%%esi\n" );
1477 printf( "\tmovl 48(%%ebx),%%edi\n" );
1479 else /* not a register function */
1481 int pos = 20; /* first argument position */
1483 /* Make %bp point to the previous stackframe (built by CallTo32) */
1484 printf( "\tmovw %%sp,%%bp\n" );
1485 printf( "\taddw $16,%%bp\n" );
1491 case 'w': /* word */
1492 printf( "\tpushw %d(%%ebx)\n", pos );
1494 case 'l': /* long */
1495 printf( "\tpushl %d(%%ebx)\n", pos );
1502 /* Push the return address */
1504 printf( "\tpushl " PREFIX "CALL16_RetAddr_%s\n",
1505 short_ret ? "word" : "long" );
1507 /* Push the called routine address */
1509 printf( "\tpushl 12(%%ebx)\n" );
1511 /* Get the 16-bit ds */
1515 printf( "\tpushw 16(%%ebx)\n" );
1516 printf( "\tmovl 32(%%ebx),%%ebx\n" ); /*Get ebx from the 32-bit stack*/
1517 printf( "\tpopw %%ds\n" );
1521 /* Set ax equal to ds for window procedures */
1522 printf( "\tmovw 16(%%ebx),%%ax\n" );
1523 printf( "\tmovw %%ax,%%ds\n" );
1526 /* Jump to the called routine */
1528 printf( "\t.byte 0x66\n" );
1529 printf( "\tlret\n" );
1533 /*******************************************************************
1536 * Build the return code for 16-bit callbacks
1538 static void BuildRet16Func()
1540 printf( "\t.globl " PREFIX "CALL16_Ret_word\n" );
1541 printf( "\t.globl " PREFIX "CALL16_Ret_long\n" );
1543 /* Put return value into eax */
1545 printf( PREFIX "CALL16_Ret_long:\n" );
1546 printf( "\tpushw %%dx\n" );
1547 printf( "\tpushw %%ax\n" );
1548 printf( "\tpopl %%eax\n" );
1549 printf( PREFIX "CALL16_Ret_word:\n" );
1551 /* Restore 32-bit segment registers */
1553 printf( "\tmovw $0x%04x,%%bx\n", WINE_DATA_SELECTOR );
1554 printf( "\tmovw %%bx,%%ds\n" );
1555 printf( "\tmovw %%bx,%%es\n" );
1556 printf( "\tmovw %%bx,%%ss\n" );
1558 /* Restore the 32-bit stack */
1560 printf( "\tmovl " PREFIX "IF1632_Saved32_esp,%%esp\n" );
1561 printf( "\tpopl " PREFIX "IF1632_Saved32_esp\n" );
1563 /* Restore the 32-bit registers */
1565 printf( "\tpopl %%edi\n" );
1566 printf( "\tpopl %%esi\n" );
1567 printf( "\tpopl %%edx\n" );
1568 printf( "\tpopl %%ecx\n" );
1569 printf( "\tpopl %%ebx\n" );
1571 /* Return to caller */
1573 printf( "\tpopl %%ebp\n" );
1574 printf( "\tlret\n" );
1576 /* Declare the return address variables */
1578 printf( "\t.data\n" );
1579 printf( "\t.globl " PREFIX "CALL16_RetAddr_word\n" );
1580 printf( "\t.globl " PREFIX "CALL16_RetAddr_long\n" );
1581 printf( PREFIX "CALL16_RetAddr_word:\t.long 0\n" );
1582 printf( PREFIX "CALL16_RetAddr_long:\t.long 0\n" );
1583 printf( "\t.text\n" );
1587 static void usage(void)
1589 fprintf(stderr, "usage: build -spec SPECNAMES\n"
1590 " build -call32 FUNCTION_PROFILES\n"
1591 " build -call16 FUNCTION_PROFILES\n" );
1596 int main(int argc, char **argv)
1600 if (argc <= 2) usage();
1602 if (!strcmp( argv[1], "-spec16" ))
1604 for (i = 2; i < argc; i++) BuildSpec16Files( argv[i] );
1606 else if (!strcmp( argv[1], "-spec32" ))
1608 for (i = 2; i < argc; i++) BuildSpec32Files( argv[i] );
1610 else if (!strcmp( argv[1], "-call32" )) /* 32-bit callbacks */
1614 printf( "/* File generated automatically. Do no edit! */\n\n" );
1615 printf( "\t.text\n" );
1617 /* Build the 32-bit large stack callback */
1619 BuildCall32LargeStack();
1621 /* Build the callback functions */
1623 for (i = 2; i < argc; i++) BuildCall32Func( argv[i] );
1625 /* Output the argument debugging strings */
1629 printf( "/* Argument strings */\n" );
1630 for (i = 2; i < argc; i++)
1632 printf( "CALL32_Str_%s:\n", argv[i] );
1633 printf( "\t.ascii \"%s\\0\"\n", argv[i] + 5 );
1637 else if (!strcmp( argv[1], "-call16" )) /* 16-bit callbacks */
1641 printf( "/* File generated automatically. Do no edit! */\n\n" );
1642 printf( "\t.text\n" );
1643 printf( "\t.globl " PREFIX "CALL16_Start\n" );
1644 printf( PREFIX "CALL16_Start:\n" );
1646 /* Build the callback functions */
1648 for (i = 2; i < argc; i++) BuildCall16Func( argv[i] );
1650 /* Output the 16-bit return code */
1654 printf( "\t.globl " PREFIX "CALL16_End\n" );
1655 printf( PREFIX "CALL16_End:\n" );