/* * 16-bit spec files * * Copyright 1993 Robert J. Amstadt * Copyright 1995 Martin von Loewis * Copyright 1995, 1996, 1997 Alexandre Julliard * Copyright 1997 Eric Youngdale * Copyright 1999 Ulrich Weigand * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include "config.h" #include <assert.h> #include <ctype.h> #include "build.h" #define NE_FFLAGS_SINGLEDATA 0x0001 #define NE_FFLAGS_LIBMODULE 0x8000 /* argument type flags for relay debugging */ enum arg_types { ARG16_NONE = 0, /* indicates end of arg list */ ARG16_WORD, /* unsigned word */ ARG16_SWORD, /* signed word */ ARG16_LONG, /* long or segmented pointer */ ARG16_PTR, /* linear pointer */ ARG16_STR, /* linear pointer to null-terminated string */ ARG16_SEGSTR, /* segmented pointer to null-terminated string */ ARG16_VARARG /* start of varargs */ }; /* sequences of nops to fill a certain number of words */ static const char * const nop_sequence[4] = { ".byte 0x89,0xf6", /* mov %esi,%esi */ ".byte 0x8d,0x74,0x26,0x00", /* lea 0x00(%esi),%esi */ ".byte 0x8d,0xb6,0x00,0x00,0x00,0x00", /* lea 0x00000000(%esi),%esi */ ".byte 0x8d,0x74,0x26,0x00,0x8d,0x74,0x26,0x00" /* lea 0x00(%esi),%esi; lea 0x00(%esi),%esi */ }; static const char fakedll_signature[] = "Wine placeholder DLL"; static inline int is_function( const ORDDEF *odp ) { if (odp->flags & FLAG_EXPORT32) return 0; return (odp->type == TYPE_CDECL || odp->type == TYPE_PASCAL || odp->type == TYPE_VARARGS || odp->type == TYPE_STUB); } static const char *get_args_str( const ORDDEF *odp ) { static char buffer[MAX_ARGUMENTS*2+1]; int i; buffer[0] = 0; for (i = 0; i < odp->u.func.nb_args; i++) { switch (odp->u.func.args[i]) { case ARG_WORD: strcat( buffer, "w" ); break; case ARG_SWORD: strcat( buffer, "s" ); break; case ARG_SEGSTR: strcat( buffer, "T" ); break; case ARG_STR: strcat( buffer, "t" ); break; case ARG_LONG: case ARG_FLOAT: case ARG_SEGPTR: strcat( buffer, "l" ); break; case ARG_PTR: case ARG_WSTR: case ARG_INT128: strcat( buffer, "p" ); break; case ARG_INT64: case ARG_DOUBLE: strcat( buffer, "ll" ); break; } } return buffer; } /******************************************************************* * output_entries * * Output entries for individual symbols in the entry table. */ static void output_entries( DLLSPEC *spec, int first, int count ) { int i; for (i = 0; i < count; i++) { ORDDEF *odp = spec->ordinals[first + i]; output( "\t.byte 0x03\n" ); /* flags: exported & public data */ switch (odp->type) { case TYPE_CDECL: case TYPE_PASCAL: case TYPE_VARARGS: case TYPE_STUB: output( "\t.short .L__wine_%s_%u-.L__wine_spec_code_segment\n", spec->c_name, first + i ); break; case TYPE_VARIABLE: output( "\t.short .L__wine_%s_%u-.L__wine_spec_data_segment\n", spec->c_name, first + i ); break; case TYPE_ABS: output( "\t.short 0x%04x /* %s */\n", odp->u.abs.value, odp->name ); break; default: assert(0); } } } /******************************************************************* * output_entry_table */ static void output_entry_table( DLLSPEC *spec ) { int i, prev = 0, prev_sel = -1, bundle_count = 0; for (i = 1; i <= spec->limit; i++) { int selector = 0; ORDDEF *odp = spec->ordinals[i]; if (!odp) continue; if (odp->flags & FLAG_EXPORT32) continue; switch (odp->type) { case TYPE_CDECL: case TYPE_PASCAL: case TYPE_VARARGS: case TYPE_STUB: selector = 1; /* Code selector */ break; case TYPE_VARIABLE: selector = 2; /* Data selector */ break; case TYPE_ABS: selector = 0xfe; /* Constant selector */ break; default: continue; } if (prev + 1 != i || prev_sel != selector || bundle_count == 255) { /* need to start a new bundle */ /* flush previous bundle */ if (bundle_count) { output( "\t/* %s.%d - %s.%d */\n", spec->dll_name, prev - bundle_count + 1, spec->dll_name, prev ); output( "\t.byte 0x%02x,0x%02x\n", bundle_count, prev_sel ); output_entries( spec, prev - bundle_count + 1, bundle_count ); } if (prev + 1 != i) { int skip = i - (prev + 1); while (skip > 255) { output( "\t.byte 0xff,0x00\n" ); skip -= 255; } output( "\t.byte 0x%02x,0x00\n", skip ); } bundle_count = 0; prev_sel = selector; } bundle_count++; prev = i; } /* flush last bundle */ if (bundle_count) { output( "\t.byte 0x%02x,0x%02x\n", bundle_count, prev_sel ); output_entries( spec, prev - bundle_count + 1, bundle_count ); } output( "\t.byte 0x00\n" ); } /******************************************************************* * output_resident_name */ static void output_resident_name( const char *string, int ordinal ) { unsigned int i, len = strlen(string); output( "\t.byte 0x%02x", len ); for (i = 0; i < len; i++) output( ",0x%02x", (unsigned char)toupper(string[i]) ); output( " /* %s */\n", string ); output( "\t.short %u\n", ordinal ); } /******************************************************************* * get_callfrom16_name */ static const char *get_callfrom16_name( const ORDDEF *odp ) { static char *buffer; free( buffer ); buffer = strmake( "%s_%s_%s", (odp->type == TYPE_PASCAL) ? "p" : (odp->type == TYPE_VARARGS) ? "v" : "c", (odp->flags & FLAG_REGISTER) ? "regs" : (odp->flags & FLAG_RET16) ? "word" : "long", get_args_str(odp) ); return buffer; } /******************************************************************* * get_relay_name */ static const char *get_relay_name( const ORDDEF *odp ) { static char buffer[80]; char *p; switch(odp->type) { case TYPE_PASCAL: strcpy( buffer, "p_" ); break; case TYPE_VARARGS: strcpy( buffer, "v_" ); break; case TYPE_CDECL: case TYPE_STUB: strcpy( buffer, "c_" ); break; default: assert(0); } strcat( buffer, get_args_str(odp) ); for (p = buffer + 2; *p; p++) { /* map string types to the corresponding plain pointer type */ if (*p == 't') *p = 'p'; else if (*p == 'T') *p = 'l'; } if (odp->flags & FLAG_REGISTER) strcat( buffer, "_regs" ); return buffer; } /******************************************************************* * get_function_argsize */ static int get_function_argsize( const ORDDEF *odp ) { int i, argsize = 0; for (i = 0; i < odp->u.func.nb_args; i++) { switch (odp->u.func.args[i]) { case ARG_WORD: case ARG_SWORD: argsize += 2; break; case ARG_SEGPTR: case ARG_SEGSTR: case ARG_LONG: case ARG_PTR: case ARG_STR: case ARG_WSTR: case ARG_FLOAT: case ARG_INT128: argsize += 4; break; case ARG_INT64: case ARG_DOUBLE: argsize += 8; break; } } return argsize; } /******************************************************************* * output_call16_function * * Build a 16-bit-to-Wine callback glue function. * * The generated routines are intended to be used as argument conversion * routines to be called by the CallFrom16... core. Thus, the prototypes of * the generated routines are (see also CallFrom16): * * extern WORD WINAPI __wine_spec_call16_C_xxx( FARPROC func, LPBYTE args ); * extern LONG WINAPI __wine_spec_call16_C_xxx( FARPROC func, LPBYTE args ); * extern void WINAPI __wine_spec_call16_C_xxx_regs( FARPROC func, LPBYTE args, CONTEXT86 *context ); * * where 'C' is the calling convention ('p' for pascal or 'c' for cdecl), * and each 'x' is an argument ('w'=word, 's'=signed word, 'l'=long, * 'p'=linear pointer, 't'=linear pointer to null-terminated string, * 'T'=segmented pointer to null-terminated string). * * The generated routines fetch the arguments from the 16-bit stack (pointed * to by 'args'); the offsets of the single argument values are computed * according to the calling convention and the argument types. Then, the * 32-bit entry point is called with these arguments. * * For register functions, the arguments (if present) are converted just * the same as for normal functions, but in addition the CONTEXT86 pointer * filled with the current register values is passed to the 32-bit routine. */ static void output_call16_function( ORDDEF *odp ) { char *name; int i, pos, stack_words; int argsize = get_function_argsize( odp ); int needs_ldt = (strpbrk( get_args_str( odp ), "pt" ) != NULL); name = strmake( ".L__wine_spec_call16_%s", get_relay_name(odp) ); output( "\t.align %d\n", get_alignment(4) ); output( "\t%s\n", func_declaration(name) ); output( "%s:\n", name ); output_cfi( ".cfi_startproc" ); output( "\tpushl %%ebp\n" ); output_cfi( ".cfi_adjust_cfa_offset 4" ); output_cfi( ".cfi_rel_offset %%ebp,0" ); output( "\tmovl %%esp,%%ebp\n" ); output_cfi( ".cfi_def_cfa_register %%ebp" ); stack_words = 2; if (needs_ldt) { output( "\tpushl %%esi\n" ); output_cfi( ".cfi_rel_offset %%esi,-4" ); stack_words++; if (UsePIC) { output( "\tcall %s\n", asm_name("__wine_spec_get_pc_thunk_eax") ); output( "1:\tmovl .Lwine_ldt_copy_ptr-1b(%%eax),%%esi\n" ); needs_get_pc_thunk = 1; } else output( "\tmovl .Lwine_ldt_copy_ptr,%%esi\n" ); } /* preserve 16-byte stack alignment */ stack_words += odp->u.func.nb_args; for (i = 0; i < odp->u.func.nb_args; i++) if (odp->u.func.args[i] == ARG_DOUBLE || odp->u.func.args[i] == ARG_INT64) stack_words++; if ((odp->flags & FLAG_REGISTER) || (odp->type == TYPE_VARARGS)) stack_words++; if (stack_words % 4) output( "\tsubl $%d,%%esp\n", 16 - 4 * (stack_words % 4) ); if (odp->u.func.nb_args || odp->type == TYPE_VARARGS) output( "\tmovl 12(%%ebp),%%ecx\n" ); /* args */ if (odp->flags & FLAG_REGISTER) { output( "\tpushl 16(%%ebp)\n" ); /* context */ } else if (odp->type == TYPE_VARARGS) { output( "\tleal %d(%%ecx),%%eax\n", argsize ); output( "\tpushl %%eax\n" ); /* va_list16 */ } pos = (odp->type == TYPE_PASCAL) ? 0 : argsize; for (i = odp->u.func.nb_args - 1; i >= 0; i--) { switch (odp->u.func.args[i]) { case ARG_WORD: if (odp->type != TYPE_PASCAL) pos -= 2; output( "\tmovzwl %d(%%ecx),%%eax\n", pos ); output( "\tpushl %%eax\n" ); if (odp->type == TYPE_PASCAL) pos += 2; break; case ARG_SWORD: if (odp->type != TYPE_PASCAL) pos -= 2; output( "\tmovswl %d(%%ecx),%%eax\n", pos ); output( "\tpushl %%eax\n" ); if (odp->type == TYPE_PASCAL) pos += 2; break; case ARG_INT64: case ARG_DOUBLE: if (odp->type != TYPE_PASCAL) pos -= 4; output( "\tpushl %d(%%ecx)\n", pos ); if (odp->type == TYPE_PASCAL) pos += 4; /* fall through */ case ARG_LONG: case ARG_FLOAT: case ARG_SEGPTR: case ARG_SEGSTR: if (odp->type != TYPE_PASCAL) pos -= 4; output( "\tpushl %d(%%ecx)\n", pos ); if (odp->type == TYPE_PASCAL) pos += 4; break; case ARG_PTR: case ARG_STR: case ARG_WSTR: case ARG_INT128: if (odp->type != TYPE_PASCAL) pos -= 4; output( "\tmovzwl %d(%%ecx),%%edx\n", pos + 2 ); /* sel */ output( "\tshr $3,%%edx\n" ); output( "\tmovzwl %d(%%ecx),%%eax\n", pos ); /* offset */ output( "\taddl (%%esi,%%edx,4),%%eax\n" ); output( "\tpushl %%eax\n" ); if (odp->type == TYPE_PASCAL) pos += 4; break; } } output( "\tcall *8(%%ebp)\n" ); if (needs_ldt) { output( "\tmovl -4(%%ebp),%%esi\n" ); output_cfi( ".cfi_same_value %%esi" ); } output( "\tleave\n" ); output_cfi( ".cfi_def_cfa %%esp,4" ); output_cfi( ".cfi_same_value %%ebp" ); output( "\tret\n" ); output_cfi( ".cfi_endproc" ); output_function_size( name ); free( name ); } /******************************************************************* * callfrom16_type_compare * * Compare two callfrom16 sequences. */ static int callfrom16_type_compare( const void *e1, const void *e2 ) { const ORDDEF *odp1 = *(const ORDDEF * const *)e1; const ORDDEF *odp2 = *(const ORDDEF * const *)e2; int retval; int type1 = odp1->type; int type2 = odp2->type; char args1[80]; if (type1 == TYPE_STUB) type1 = TYPE_CDECL; if (type2 == TYPE_STUB) type2 = TYPE_CDECL; if ((retval = type1 - type2) != 0) return retval; type1 = odp1->flags & (FLAG_RET16|FLAG_REGISTER); type2 = odp2->flags & (FLAG_RET16|FLAG_REGISTER); if ((retval = type1 - type2) != 0) return retval; strcpy( args1, get_args_str( odp1 )); return strcmp( args1, get_args_str( odp2 )); } /******************************************************************* * relay_type_compare * * Same as callfrom16_type_compare but ignores differences that don't affect the resulting relay function. */ static int relay_type_compare( const void *e1, const void *e2 ) { const ORDDEF *odp1 = *(const ORDDEF * const *)e1; const ORDDEF *odp2 = *(const ORDDEF * const *)e2; char name1[80]; strcpy( name1, get_relay_name(odp1) ); return strcmp( name1, get_relay_name(odp2) ); } /******************************************************************* * output_module16 * * Output code for a 16-bit module. */ static void output_module16( DLLSPEC *spec ) { ORDDEF **typelist; ORDDEF *entry_point = NULL; int i, j, nb_funcs; /* store the main entry point as ordinal 0 */ if (!spec->ordinals) { assert(spec->limit == 0); spec->ordinals = xmalloc( sizeof(spec->ordinals[0]) ); spec->ordinals[0] = NULL; } if (spec->init_func && !(spec->characteristics & IMAGE_FILE_DLL)) { entry_point = xmalloc( sizeof(*entry_point) ); entry_point->type = TYPE_PASCAL; entry_point->ordinal = 0; entry_point->lineno = 0; entry_point->flags = FLAG_REGISTER; entry_point->name = NULL; entry_point->link_name = xstrdup( spec->init_func ); entry_point->export_name = NULL; entry_point->u.func.nb_args = 0; assert( !spec->ordinals[0] ); spec->ordinals[0] = entry_point; } /* Build sorted list of all argument types, without duplicates */ typelist = xmalloc( (spec->limit + 1) * sizeof(*typelist) ); for (i = nb_funcs = 0; i <= spec->limit; i++) { ORDDEF *odp = spec->ordinals[i]; if (!odp) continue; if (is_function( odp )) typelist[nb_funcs++] = odp; } nb_funcs = sort_func_list( typelist, nb_funcs, callfrom16_type_compare ); /* Output the module structure */ output( "\n/* module data */\n\n" ); output( "\t.data\n" ); output( "\t.align %d\n", get_alignment(16) ); output( ".L__wine_spec_dos_header:\n" ); output( "\t.short 0x5a4d\n" ); /* e_magic */ output( "\t.short 0\n" ); /* e_cblp */ output( "\t.short 0\n" ); /* e_cp */ output( "\t.short 0\n" ); /* e_crlc */ output( "\t.short 0\n" ); /* e_cparhdr */ output( "\t.short 0\n" ); /* e_minalloc */ output( "\t.short 0\n" ); /* e_maxalloc */ output( "\t.short 0\n" ); /* e_ss */ output( "\t.short 0\n" ); /* e_sp */ output( "\t.short 0\n" ); /* e_csum */ output( "\t.short 0\n" ); /* e_ip */ output( "\t.short 0\n" ); /* e_cs */ output( "\t.short 0\n" ); /* e_lfarlc */ output( "\t.short 0\n" ); /* e_ovno */ output( "\t.short 0,0,0,0\n" ); /* e_res */ output( "\t.short 0\n" ); /* e_oemid */ output( "\t.short 0\n" ); /* e_oeminfo */ output( ".Lwine_ldt_copy_ptr:\n" ); /* e_res2, used for private data */ output( "\t.long .L__wine_spec_ne_header_end-.L__wine_spec_dos_header,0,0,0,0\n" ); output( "\t.long .L__wine_spec_ne_header-.L__wine_spec_dos_header\n" );/* e_lfanew */ output( "\t%s \"%s\"\n", get_asm_string_keyword(), fakedll_signature ); output( "\t.align %d\n", get_alignment(16) ); output( ".L__wine_spec_ne_header:\n" ); output( "\t.short 0x454e\n" ); /* ne_magic */ output( "\t.byte 0\n" ); /* ne_ver */ output( "\t.byte 0\n" ); /* ne_rev */ output( "\t.short .L__wine_spec_ne_enttab-.L__wine_spec_ne_header\n" );/* ne_enttab */ output( "\t.short .L__wine_spec_ne_enttab_end-.L__wine_spec_ne_enttab\n" );/* ne_cbenttab */ output( "\t.long 0\n" ); /* ne_crc */ output( "\t.short 0x%04x\n", NE_FFLAGS_SINGLEDATA | /* ne_flags */ ((spec->characteristics & IMAGE_FILE_DLL) ? NE_FFLAGS_LIBMODULE : 0) ); output( "\t.short 2\n" ); /* ne_autodata */ output( "\t.short %u\n", spec->heap_size ); /* ne_heap */ output( "\t.short 0\n" ); /* ne_stack */ if (!entry_point) output( "\t.long 0\n" ); /* ne_csip */ else output( "\t.short .L__wine_%s_0-.L__wine_spec_code_segment,1\n", spec->c_name ); output( "\t.short 0,2\n" ); /* ne_sssp */ output( "\t.short 2\n" ); /* ne_cseg */ output( "\t.short 0\n" ); /* ne_cmod */ output( "\t.short 0\n" ); /* ne_cbnrestab */ output( "\t.short .L__wine_spec_ne_segtab-.L__wine_spec_ne_header\n" );/* ne_segtab */ output( "\t.short .L__wine_spec_ne_rsrctab-.L__wine_spec_ne_header\n" ); /* ne_rsrctab */ output( "\t.short .L__wine_spec_ne_restab-.L__wine_spec_ne_header\n" ); /* ne_restab */ output( "\t.short .L__wine_spec_ne_modtab-.L__wine_spec_ne_header\n" ); /* ne_modtab */ output( "\t.short .L__wine_spec_ne_imptab-.L__wine_spec_ne_header\n" ); /* ne_imptab */ output( "\t.long 0\n" ); /* ne_nrestab */ output( "\t.short 0\n" ); /* ne_cmovent */ output( "\t.short 0\n" ); /* ne_align */ output( "\t.short 0\n" ); /* ne_cres */ output( "\t.byte 0x02\n" ); /* ne_exetyp = NE_OSFLAGS_WINDOWS */ output( "\t.byte 0x08\n" ); /* ne_flagsothers = NE_AFLAGS_FASTLOAD */ output( "\t.short 0\n" ); /* ne_pretthunks */ output( "\t.short 0\n" ); /* ne_psegrefbytes */ output( "\t.short 0\n" ); /* ne_swaparea */ output( "\t.short 0\n" ); /* ne_expver */ /* segment table */ output( "\n.L__wine_spec_ne_segtab:\n" ); /* code segment entry */ output( "\t.short .L__wine_spec_code_segment-.L__wine_spec_dos_header\n" ); /* filepos */ output( "\t.short .L__wine_spec_code_segment_end-.L__wine_spec_code_segment\n" ); /* size */ output( "\t.short 0x2000\n" ); /* flags = NE_SEGFLAGS_32BIT */ output( "\t.short .L__wine_spec_code_segment_end-.L__wine_spec_code_segment\n" ); /* minsize */ /* data segment entry */ output( "\t.short .L__wine_spec_data_segment-.L__wine_spec_dos_header\n" ); /* filepos */ output( "\t.short .L__wine_spec_data_segment_end-.L__wine_spec_data_segment\n" ); /* size */ output( "\t.short 0x0001\n" ); /* flags = NE_SEGFLAGS_DATA */ output( "\t.short .L__wine_spec_data_segment_end-.L__wine_spec_data_segment\n" ); /* minsize */ /* resource directory */ output_res16_directory( spec ); /* resident names table */ output( "\n\t.align %d\n", get_alignment(2) ); output( ".L__wine_spec_ne_restab:\n" ); output_resident_name( spec->dll_name, 0 ); for (i = 1; i <= spec->limit; i++) { ORDDEF *odp = spec->ordinals[i]; if (!odp || !odp->name[0]) continue; if (odp->flags & FLAG_EXPORT32) continue; output_resident_name( odp->name, i ); } output( "\t.byte 0\n" ); /* imported names table */ output( "\n\t.align %d\n", get_alignment(2) ); output( ".L__wine_spec_ne_modtab:\n" ); output( ".L__wine_spec_ne_imptab:\n" ); output( "\t.byte 0,0\n" ); /* entry table */ output( "\n.L__wine_spec_ne_enttab:\n" ); output_entry_table( spec ); output( ".L__wine_spec_ne_enttab_end:\n" ); /* code segment */ output( "\n\t.align %d\n", get_alignment(2) ); output( ".L__wine_spec_code_segment:\n" ); for ( i = 0; i < nb_funcs; i++ ) { unsigned int arg_types[2]; int nop_words, pos, argsize = 0; if ( typelist[i]->type == TYPE_PASCAL ) argsize = get_function_argsize( typelist[i] ); /* build the arg types bit fields */ arg_types[0] = arg_types[1] = 0; for (j = pos = 0; j < typelist[i]->u.func.nb_args && pos < 20; j++, pos++) { int type = 0; switch (typelist[i]->u.func.args[j]) { case ARG_WORD: type = ARG16_WORD; break; case ARG_SWORD: type = ARG16_SWORD; break; case ARG_SEGPTR: type = ARG16_LONG; break; case ARG_SEGSTR: type = ARG16_SEGSTR; break; case ARG_LONG: type = ARG16_LONG; break; case ARG_PTR: type = ARG16_PTR; break; case ARG_STR: type = ARG16_STR; break; case ARG_WSTR: type = ARG16_PTR; break; case ARG_FLOAT: type = ARG16_LONG; break; case ARG_INT128: type = ARG16_PTR; break; case ARG_INT64: case ARG_DOUBLE: type = ARG16_LONG; arg_types[pos / 10] |= type << (3 * (pos % 10)); pos++; break; } if (pos < 20) arg_types[pos / 10] |= type << (3 * (pos % 10)); } if (typelist[i]->type == TYPE_VARARGS && pos < 20) arg_types[pos / 10] |= ARG16_VARARG << (3 * (pos % 10)); output( ".L__wine_spec_callfrom16_%s:\n", get_callfrom16_name(typelist[i]) ); output( "\tpushl $.L__wine_spec_call16_%s\n", get_relay_name(typelist[i]) ); output( "\tlcall $0,$0\n" ); if (typelist[i]->flags & FLAG_REGISTER) { nop_words = 4; } else if (typelist[i]->flags & FLAG_RET16) { output( "\torw %%ax,%%ax\n" ); output( "\tnop\n" ); /* so that the lretw is aligned */ nop_words = 2; } else { output( "\tshld $16,%%eax,%%edx\n" ); output( "\torl %%eax,%%eax\n" ); nop_words = 1; } if (argsize) { output( "\tlretw $%u\n", argsize ); nop_words--; } else output( "\tlretw\n" ); if (nop_words) output( "\t%s\n", nop_sequence[nop_words-1] ); /* the movl is here so that the code contains only valid instructions, */ /* it's never actually executed, we only care about the arg_types[] values */ output( "\t.short 0x86c7\n" ); output( "\t.long 0x%08x,0x%08x\n", arg_types[0], arg_types[1] ); } for (i = 0; i <= spec->limit; i++) { ORDDEF *odp = spec->ordinals[i]; if (!odp || !is_function( odp )) continue; output( ".L__wine_%s_%u:\n", spec->c_name, i ); output( "\tpushw %%bp\n" ); output( "\tpushl $%s\n", asm_name( odp->type == TYPE_STUB ? get_stub_name( odp, spec ) : get_link_name( odp ))); output( "\tcallw .L__wine_spec_callfrom16_%s\n", get_callfrom16_name( odp ) ); } output( ".L__wine_spec_code_segment_end:\n" ); /* data segment */ output( "\n.L__wine_spec_data_segment:\n" ); output( "\t.byte 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0\n" ); /* instance data */ for (i = 0; i <= spec->limit; i++) { ORDDEF *odp = spec->ordinals[i]; if (!odp || odp->type != TYPE_VARIABLE) continue; output( ".L__wine_%s_%u:\n", spec->c_name, i ); output( "\t.long " ); for (j = 0; j < odp->u.var.n_values-1; j++) output( "0x%08x,", odp->u.var.values[j] ); output( "0x%08x\n", odp->u.var.values[j] ); } output( ".L__wine_spec_data_segment_end:\n" ); /* resource data */ if (spec->nb_resources) { output( "\n.L__wine_spec_resource_data:\n" ); output_res16_data( spec ); } output( ".L__wine_spec_ne_header_end:\n" ); output( "\t.byte 0\n" ); /* make sure the last symbol points to something */ /* relay functions */ nb_funcs = sort_func_list( typelist, nb_funcs, relay_type_compare ); if (nb_funcs) { output( "\n/* relay functions */\n\n" ); output( "\t.text\n" ); for ( i = 0; i < nb_funcs; i++ ) output_call16_function( typelist[i] ); } free( typelist ); } /******************************************************************* * output_spec16_file * * Output the complete data for a spec 16-bit file. */ void output_spec16_file( DLLSPEC *spec16 ) { DLLSPEC *spec32 = alloc_dll_spec(); add_16bit_exports( spec32, spec16 ); needs_get_pc_thunk = 0; open_output_file(); output_standard_file_header(); output_module( spec32 ); output_module16( spec16 ); output_stubs( spec16 ); output_exports( spec32 ); output_imports( spec16 ); if (!strcmp( spec16->dll_name, "kernel" )) output_asm_relays16(); if (needs_get_pc_thunk) output_get_pc_thunk(); if (spec16->main_module) { output( "\n\t%s\n", get_asm_string_section() ); output( ".L__wine_spec_main_module:\n" ); output( "\t%s \"%s\"\n", get_asm_string_keyword(), spec16->main_module ); } output_gnu_stack_note(); close_output_file(); free_dll_spec( spec32 ); } /******************************************************************* * output_fake_module16 * * Create a fake 16-bit binary module. */ void output_fake_module16( DLLSPEC *spec ) { static const unsigned char code_segment[] = { 0x90, 0xc3 }; static const unsigned char data_segment[16] = { 0 }; const unsigned int cseg = 2; const unsigned int lfanew = (0x40 + sizeof(fakedll_signature) + 15) & ~15; const unsigned int segtab = lfanew + 0x40; unsigned int i, rsrctab, restab, namelen, modtab, imptab, enttab, cbenttab, codeseg, dataseg, rsrcdata, rsrc_size = 0; void *rsrc_ptr = NULL; init_output_buffer(); rsrctab = lfanew; restab = segtab + 8 * cseg; if (spec->nb_resources) { output_bin_res16_directory( spec, 0 ); align_output( 2 ); rsrctab = restab; restab += output_buffer_pos; free( output_buffer ); init_output_buffer(); output_bin_res16_data( spec ); rsrc_ptr = output_buffer; rsrc_size = output_buffer_pos; init_output_buffer(); } namelen = strlen( spec->dll_name ); modtab = restab + ((namelen + 3) & ~1); imptab = modtab; enttab = modtab + 2; cbenttab = 1; codeseg = (enttab + cbenttab + 1) & ~1; dataseg = codeseg + sizeof(code_segment); rsrcdata = dataseg + sizeof(data_segment); init_output_buffer(); put_word( 0x5a4d ); /* e_magic */ put_word( 0x40 ); /* e_cblp */ put_word( 0x01 ); /* e_cp */ put_word( 0 ); /* e_crlc */ put_word( lfanew / 16 ); /* e_cparhdr */ put_word( 0x0000 ); /* e_minalloc */ put_word( 0xffff ); /* e_maxalloc */ put_word( 0x0000 ); /* e_ss */ put_word( 0x00b8 ); /* e_sp */ put_word( 0 ); /* e_csum */ put_word( 0 ); /* e_ip */ put_word( 0 ); /* e_cs */ put_word( lfanew ); /* e_lfarlc */ put_word( 0 ); /* e_ovno */ put_dword( 0 ); /* e_res */ put_dword( 0 ); put_word( 0 ); /* e_oemid */ put_word( 0 ); /* e_oeminfo */ put_dword( rsrcdata + rsrc_size ); /* e_res2 */ put_dword( 0 ); put_dword( 0 ); put_dword( 0 ); put_dword( 0 ); put_dword( lfanew ); put_data( fakedll_signature, sizeof(fakedll_signature) ); align_output( 16 ); put_word( 0x454e ); /* ne_magic */ put_byte( 0 ); /* ne_ver */ put_byte( 0 ); /* ne_rev */ put_word( enttab - lfanew ); /* ne_enttab */ put_word( cbenttab ); /* ne_cbenttab */ put_dword( 0 ); /* ne_crc */ put_word( NE_FFLAGS_SINGLEDATA | /* ne_flags */ ((spec->characteristics & IMAGE_FILE_DLL) ? NE_FFLAGS_LIBMODULE : 0) ); put_word( 2 ); /* ne_autodata */ put_word( spec->heap_size ); /* ne_heap */ put_word( 0 ); /* ne_stack */ put_word( 0 ); put_word( 0 ); /* ne_csip */ put_word( 0 ); put_word( 2 ); /* ne_sssp */ put_word( cseg ); /* ne_cseg */ put_word( 0 ); /* ne_cmod */ put_word( 0 ); /* ne_cbnrestab */ put_word( segtab - lfanew ); /* ne_segtab */ put_word( rsrctab - lfanew ); /* ne_rsrctab */ put_word( restab - lfanew ); /* ne_restab */ put_word( modtab - lfanew ); /* ne_modtab */ put_word( imptab - lfanew ); /* ne_imptab */ put_dword( 0 ); /* ne_nrestab */ put_word( 0 ); /* ne_cmovent */ put_word( 0 ); /* ne_align */ put_word( 0 ); /* ne_cres */ put_byte( 2 /*NE_OSFLAGS_WINDOWS*/ ); /* ne_exetyp */ put_byte( 8 /*NE_AFLAGS_FASTLOAD*/ ); /* ne_flagsothers */ put_word( 0 ); /* ne_pretthunks */ put_word( 0 ); /* ne_psegrefbytes */ put_word( 0 ); /* ne_swaparea */ put_word( 0 ); /* ne_expver */ /* segment table */ put_word( codeseg ); put_word( sizeof(code_segment) ); put_word( 0x2000 /* NE_SEGFLAGS_32BIT */ ); put_word( sizeof(code_segment) ); put_word( dataseg ); put_word( sizeof(data_segment) ); put_word( 0x0001 /* NE_SEGFLAGS_DATA */ ); put_word( sizeof(data_segment) ); /* resource directory */ if (spec->nb_resources) { output_bin_res16_directory( spec, rsrcdata ); align_output( 2 ); } /* resident names table */ put_byte( namelen ); for (i = 0; i < namelen; i++) put_byte( toupper(spec->dll_name[i]) ); put_byte( 0 ); align_output( 2 ); /* imported names table */ put_word( 0 ); /* entry table */ put_byte( 0 ); align_output( 2 ); /* code segment */ put_data( code_segment, sizeof(code_segment) ); /* data segment */ put_data( data_segment, sizeof(data_segment) ); /* resource data */ put_data( rsrc_ptr, rsrc_size ); }