/* * DLL imports support * * Copyright 2000, 2004 Alexandre Julliard * Copyright 2000 Eric Pouech * * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "config.h" #include "wine/port.h" #include #include #include #include #include #ifdef HAVE_SYS_STAT_H # include #endif #ifdef HAVE_UNISTD_H # include #endif #include "windef.h" #include "winbase.h" #include "wine/exception.h" #include "build.h" struct import { DLLSPEC *spec; /* description of the imported dll */ char *full_name; /* full name of the input file */ dev_t dev; /* device/inode of the input file */ ino_t ino; int delay; /* delay or not dll loading ? */ ORDDEF **exports; /* functions exported from this dll */ int nb_exports; /* number of exported functions */ ORDDEF **imports; /* functions we want to import from this dll */ int nb_imports; /* number of imported functions */ }; static char **undef_symbols; /* list of undefined symbols */ static int nb_undef_symbols = -1; static int undef_size; static char **ignore_symbols; /* list of symbols to ignore */ static int nb_ignore_symbols; static int ignore_size; static char *ld_tmp_file; /* ld temp file name */ static struct import **dll_imports = NULL; static int nb_imports = 0; /* number of imported dlls (delayed or not) */ static int nb_delayed = 0; /* number of delayed dlls */ static int total_imports = 0; /* total number of imported functions */ static int total_delayed = 0; /* total number of imported functions in delayed DLLs */ static char **delayed_imports; /* names of delayed import dlls */ static int nb_delayed_imports; /* size of the delayed_imports array */ /* list of symbols that are ignored by default */ static const char * const default_ignored_symbols[] = { "abs", "acos", "asin", "atan", "atan2", "atof", "atoi", "atol", "bsearch", "ceil", "cos", "cosh", "exp", "fabs", "floor", "fmod", "frexp", "labs", "log", "log10", "memchr", "memcmp", "memcpy", "memmove", "memset", "modf", "pow", "qsort", "sin", "sinh", "sqrt", "strcat", "strchr", "strcmp", "strcpy", "strcspn", "strlen", "strncat", "strncmp", "strncpy", "strpbrk", "strrchr", "strspn", "strstr", "tan", "tanh" }; static inline const char *ppc_reg( int reg ) { static const char * const ppc_regs[32] = { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10","r11","r12","r13","r14","r15", "r16","r17","r18","r19","r20","r21","r22","r23", "r24","r25","r26","r27","r28","r29","r30","r31" }; if (target_platform == PLATFORM_APPLE) return ppc_regs[reg]; return ppc_regs[reg] + 1; /* skip the 'r' */ } /* compare function names; helper for resolve_imports */ static int name_cmp( const void *name, const void *entry ) { return strcmp( *(const char* const *)name, *(const char* const *)entry ); } /* compare function names; helper for resolve_imports */ static int func_cmp( const void *func1, const void *func2 ) { const ORDDEF *odp1 = *(const ORDDEF * const *)func1; const ORDDEF *odp2 = *(const ORDDEF * const *)func2; return strcmp( odp1->name ? odp1->name : odp1->export_name, odp2->name ? odp2->name : odp2->export_name ); } /* locate a symbol in a (sorted) list */ inline static const char *find_symbol( const char *name, char **table, int size ) { char **res = NULL; if (table) { res = bsearch( &name, table, size, sizeof(*table), name_cmp ); } return res ? *res : NULL; } /* locate an export in a (sorted) export list */ inline static ORDDEF *find_export( const char *name, ORDDEF **table, int size ) { ORDDEF func, *odp, **res = NULL; func.name = (char *)name; func.ordinal = -1; odp = &func; if (table) res = bsearch( &odp, table, size, sizeof(*table), func_cmp ); return res ? *res : NULL; } /* sort a symbol table */ inline static void sort_symbols( char **table, int size ) { if (table ) qsort( table, size, sizeof(*table), name_cmp ); } inline static void output_function_size( FILE *outfile, const char *name ) { const char *size = func_size( name ); if (size[0]) fprintf( outfile, " \"\\t%s\\n\"\n", size ); } /* free an import structure */ static void free_imports( struct import *imp ) { free( imp->exports ); free( imp->imports ); free_dll_spec( imp->spec ); free( imp->full_name ); free( imp ); } /* remove the temp file at exit */ static void remove_ld_tmp_file(void) { if (ld_tmp_file) unlink( ld_tmp_file ); } /* check whether a given dll is imported in delayed mode */ static int is_delayed_import( const char *name ) { int i; for (i = 0; i < nb_delayed_imports; i++) { if (!strcmp( delayed_imports[i], name )) return 1; } return 0; } /* check whether a given dll has already been imported */ static struct import *is_already_imported( const char *name ) { int i; for (i = 0; i < nb_imports; i++) { if (!strcmp( dll_imports[i]->spec->file_name, name )) return dll_imports[i]; } return NULL; } /* open the .so library for a given dll in a specified path */ static char *try_library_path( const char *path, const char *name ) { char *buffer; int fd; buffer = xmalloc( strlen(path) + strlen(name) + 9 ); sprintf( buffer, "%s/lib%s.def", path, name ); /* check if the file exists */ if ((fd = open( buffer, O_RDONLY )) != -1) { close( fd ); return buffer; } free( buffer ); return NULL; } /* find the .def import library for a given dll */ static char *find_library( const char *name ) { char *fullname; int i; for (i = 0; i < nb_lib_paths; i++) { if ((fullname = try_library_path( lib_path[i], name ))) return fullname; } fatal_error( "could not open .def file for %s\n", name ); return NULL; } /* read in the list of exported symbols of an import library */ static int read_import_lib( struct import *imp ) { FILE *f; int i, ret; struct stat stat; struct import *prev_imp; DLLSPEC *spec = imp->spec; f = open_input_file( NULL, imp->full_name ); fstat( fileno(f), &stat ); imp->dev = stat.st_dev; imp->ino = stat.st_ino; ret = parse_def_file( f, spec ); close_input_file( f ); if (!ret) return 0; /* check if we already imported that library from a different file */ if ((prev_imp = is_already_imported( spec->file_name ))) { if (prev_imp->dev != imp->dev || prev_imp->ino != imp->ino) fatal_error( "%s and %s have the same export name '%s'\n", prev_imp->full_name, imp->full_name, spec->file_name ); return 0; /* the same file was already loaded, ignore this one */ } if (is_delayed_import( spec->file_name )) { imp->delay = 1; nb_delayed++; } imp->exports = xmalloc( spec->nb_entry_points * sizeof(*imp->exports) ); for (i = 0; i < spec->nb_entry_points; i++) { ORDDEF *odp = &spec->entry_points[i]; if (odp->type != TYPE_STDCALL && odp->type != TYPE_CDECL) continue; if (odp->flags & FLAG_PRIVATE) continue; imp->exports[imp->nb_exports++] = odp; } imp->exports = xrealloc( imp->exports, imp->nb_exports * sizeof(*imp->exports) ); if (imp->nb_exports) qsort( imp->exports, imp->nb_exports, sizeof(*imp->exports), func_cmp ); return 1; } /* build the dll exported name from the import lib name or path */ static char *get_dll_name( const char *name, const char *filename ) { char *ret; if (filename) { const char *basename = strrchr( filename, '/' ); if (!basename) basename = filename; else basename++; if (!strncmp( basename, "lib", 3 )) basename += 3; ret = xmalloc( strlen(basename) + 5 ); strcpy( ret, basename ); if (strendswith( ret, ".def" )) ret[strlen(ret)-4] = 0; } else { ret = xmalloc( strlen(name) + 5 ); strcpy( ret, name ); } if (!strchr( ret, '.' )) strcat( ret, ".dll" ); return ret; } /* add a dll to the list of imports */ void add_import_dll( const char *name, const char *filename ) { struct import *imp = xmalloc( sizeof(*imp) ); imp->spec = alloc_dll_spec(); imp->spec->file_name = get_dll_name( name, filename ); imp->delay = 0; imp->imports = NULL; imp->nb_imports = 0; imp->exports = NULL; imp->nb_exports = 0; if (filename) imp->full_name = xstrdup( filename ); else imp->full_name = find_library( name ); if (read_import_lib( imp )) { dll_imports = xrealloc( dll_imports, (nb_imports+1) * sizeof(*dll_imports) ); dll_imports[nb_imports++] = imp; } else { free_imports( imp ); if (nb_errors) exit(1); } } /* add a library to the list of delayed imports */ void add_delayed_import( const char *name ) { struct import *imp; char *fullname = get_dll_name( name, NULL ); delayed_imports = xrealloc( delayed_imports, (nb_delayed_imports+1) * sizeof(*delayed_imports) ); delayed_imports[nb_delayed_imports++] = fullname; if ((imp = is_already_imported( fullname )) && !imp->delay) { imp->delay = 1; nb_delayed++; } } /* remove an imported dll, based on its index in the dll_imports array */ static void remove_import_dll( int index ) { struct import *imp = dll_imports[index]; memmove( &dll_imports[index], &dll_imports[index+1], sizeof(imp) * (nb_imports - index - 1) ); nb_imports--; if (imp->delay) nb_delayed--; free_imports( imp ); } /* initialize the list of ignored symbols */ static void init_ignored_symbols(void) { int i; nb_ignore_symbols = sizeof(default_ignored_symbols)/sizeof(default_ignored_symbols[0]); ignore_size = nb_ignore_symbols + 32; ignore_symbols = xmalloc( ignore_size * sizeof(*ignore_symbols) ); for (i = 0; i < nb_ignore_symbols; i++) ignore_symbols[i] = xstrdup( default_ignored_symbols[i] ); } /* add a symbol to the ignored symbol list */ /* if the name starts with '-' the symbol is removed instead */ void add_ignore_symbol( const char *name ) { int i; if (!ignore_symbols) init_ignored_symbols(); /* first time around, fill list with defaults */ if (name[0] == '-') /* remove it */ { if (!name[1]) /* remove everything */ { for (i = 0; i < nb_ignore_symbols; i++) free( ignore_symbols[i] ); nb_ignore_symbols = 0; } else { for (i = 0; i < nb_ignore_symbols; i++) { if (!strcmp( ignore_symbols[i], name+1 )) { free( ignore_symbols[i] ); memmove( &ignore_symbols[i], &ignore_symbols[i+1], nb_ignore_symbols - i - 1 ); nb_ignore_symbols--; } } } } else { if (nb_ignore_symbols == ignore_size) { ignore_size += 32; ignore_symbols = xrealloc( ignore_symbols, ignore_size * sizeof(*ignore_symbols) ); } ignore_symbols[nb_ignore_symbols++] = xstrdup( name ); } } /* add a function to the list of imports from a given dll */ static void add_import_func( struct import *imp, ORDDEF *func ) { imp->imports = xrealloc( imp->imports, (imp->nb_imports+1) * sizeof(*imp->imports) ); imp->imports[imp->nb_imports++] = func; total_imports++; if (imp->delay) total_delayed++; } /* add a symbol to the undef list */ inline static void add_undef_symbol( const char *name ) { if (nb_undef_symbols == undef_size) { undef_size += 128; undef_symbols = xrealloc( undef_symbols, undef_size * sizeof(*undef_symbols) ); } undef_symbols[nb_undef_symbols++] = xstrdup( name ); } /* remove all the holes in the undefined symbol list; return the number of removed symbols */ static int remove_symbol_holes(void) { int i, off; for (i = off = 0; i < nb_undef_symbols; i++) { if (!undef_symbols[i]) off++; else undef_symbols[i - off] = undef_symbols[i]; } nb_undef_symbols -= off; return off; } /* add a symbol to the extra list, but only if needed */ static int add_extra_symbol( const char **extras, int *count, const char *name, const DLLSPEC *spec ) { int i; if (!find_symbol( name, undef_symbols, nb_undef_symbols )) { /* check if the symbol is being exported by this dll */ for (i = 0; i < spec->nb_entry_points; i++) { ORDDEF *odp = &spec->entry_points[i]; if (odp->type == TYPE_STDCALL || odp->type == TYPE_CDECL || odp->type == TYPE_VARARGS || odp->type == TYPE_EXTERN) { if (odp->name && !strcmp( odp->name, name )) return 0; } } extras[*count] = name; (*count)++; } return 1; } /* add the extra undefined symbols that will be contained in the generated spec file itself */ static void add_extra_undef_symbols( const DLLSPEC *spec ) { const char *extras[10]; int i, count = 0, nb_stubs = 0; int kernel_imports = 0, ntdll_imports = 0; sort_symbols( undef_symbols, nb_undef_symbols ); for (i = 0; i < spec->nb_entry_points; i++) { ORDDEF *odp = &spec->entry_points[i]; if (odp->type == TYPE_STUB) nb_stubs++; } /* add symbols that will be contained in the spec file itself */ if (!(spec->characteristics & IMAGE_FILE_DLL)) { switch (spec->subsystem) { case IMAGE_SUBSYSTEM_WINDOWS_GUI: case IMAGE_SUBSYSTEM_WINDOWS_CUI: kernel_imports += add_extra_symbol( extras, &count, "GetCommandLineA", spec ); kernel_imports += add_extra_symbol( extras, &count, "GetStartupInfoA", spec ); kernel_imports += add_extra_symbol( extras, &count, "GetModuleHandleA", spec ); kernel_imports += add_extra_symbol( extras, &count, "ExitProcess", spec ); break; } } if (nb_delayed) { kernel_imports += add_extra_symbol( extras, &count, "LoadLibraryA", spec ); kernel_imports += add_extra_symbol( extras, &count, "FreeLibrary", spec ); kernel_imports += add_extra_symbol( extras, &count, "GetProcAddress", spec ); kernel_imports += add_extra_symbol( extras, &count, "RaiseException", spec ); } if (nb_stubs) ntdll_imports += add_extra_symbol( extras, &count, "RtlRaiseException", spec ); /* make sure we import the dlls that contain these functions */ if (kernel_imports) add_import_dll( "kernel32", NULL ); if (ntdll_imports) add_import_dll( "ntdll", NULL ); if (count) { for (i = 0; i < count; i++) add_undef_symbol( extras[i] ); sort_symbols( undef_symbols, nb_undef_symbols ); } } /* check if a given imported dll is not needed, taking forwards into account */ static int check_unused( const struct import* imp, const DLLSPEC *spec ) { int i; const char *file_name = imp->spec->file_name; size_t len = strlen( file_name ); const char *p = strchr( file_name, '.' ); if (p && !strcasecmp( p, ".dll" )) len = p - file_name; for (i = spec->base; i <= spec->limit; i++) { ORDDEF *odp = spec->ordinals[i]; if (!odp || !(odp->flags & FLAG_FORWARD)) continue; if (!strncasecmp( odp->link_name, file_name, len ) && odp->link_name[len] == '.') return 0; /* found a forward, it is used */ } return 1; } /* combine a list of object files with ld into a single object file */ /* returns the name of the combined file */ static const char *ldcombine_files( char **argv ) { int i, len = 0; char *cmd; int fd, err; if (output_file_name && output_file_name[0]) { ld_tmp_file = xmalloc( strlen(output_file_name) + 10 ); strcpy( ld_tmp_file, output_file_name ); strcat( ld_tmp_file, ".XXXXXX.o" ); } else ld_tmp_file = xstrdup( "/tmp/winebuild.tmp.XXXXXX.o" ); if ((fd = mkstemps( ld_tmp_file, 2 ) == -1)) fatal_error( "could not generate a temp file\n" ); close( fd ); atexit( remove_ld_tmp_file ); if (!ld_command) ld_command = xstrdup("ld"); for (i = 0; argv[i]; i++) len += strlen(argv[i]) + 1; cmd = xmalloc( len + strlen(ld_tmp_file) + 8 + strlen(ld_command) ); sprintf( cmd, "%s -r -o %s", ld_command, ld_tmp_file ); for (i = 0; argv[i]; i++) sprintf( cmd + strlen(cmd), " %s", argv[i] ); err = system( cmd ); if (err) fatal_error( "%s -r failed with status %d\n", ld_command, err ); free( cmd ); return ld_tmp_file; } /* read in the list of undefined symbols */ void read_undef_symbols( char **argv ) { size_t prefix_len; FILE *f; char *cmd, buffer[1024], name_prefix[16]; int err; const char *name; if (!argv[0]) return; strcpy( name_prefix, asm_name("") ); prefix_len = strlen( name_prefix ); undef_size = nb_undef_symbols = 0; /* if we have multiple object files, link them together */ if (argv[1]) name = ldcombine_files( argv ); else name = argv[0]; if (!nm_command) nm_command = xstrdup("nm"); cmd = xmalloc( strlen(nm_command) + strlen(name) + 5 ); sprintf( cmd, "%s -u %s", nm_command, name ); if (!(f = popen( cmd, "r" ))) fatal_error( "Cannot execute '%s'\n", cmd ); while (fgets( buffer, sizeof(buffer), f )) { char *p = buffer + strlen(buffer) - 1; if (p < buffer) continue; if (*p == '\n') *p-- = 0; p = buffer; while (*p == ' ') p++; if (p[0] == 'U' && p[1] == ' ' && p[2]) p += 2; if (prefix_len && !strncmp( p, name_prefix, prefix_len )) p += prefix_len; add_undef_symbol( p ); } if ((err = pclose( f ))) warning( "%s failed with status %d\n", cmd, err ); free( cmd ); } static void remove_ignored_symbols(void) { int i; if (!ignore_symbols) init_ignored_symbols(); sort_symbols( ignore_symbols, nb_ignore_symbols ); for (i = 0; i < nb_undef_symbols; i++) { if (find_symbol( undef_symbols[i], ignore_symbols, nb_ignore_symbols )) { free( undef_symbols[i] ); undef_symbols[i] = NULL; } } remove_symbol_holes(); } /* resolve the imports for a Win32 module */ int resolve_imports( DLLSPEC *spec ) { int i, j; if (nb_undef_symbols == -1) return 0; /* no symbol file specified */ add_extra_undef_symbols( spec ); remove_ignored_symbols(); for (i = 0; i < nb_imports; i++) { struct import *imp = dll_imports[i]; for (j = 0; j < nb_undef_symbols; j++) { ORDDEF *odp = find_export( undef_symbols[j], imp->exports, imp->nb_exports ); if (odp) { add_import_func( imp, odp ); free( undef_symbols[j] ); undef_symbols[j] = NULL; } } /* remove all the holes in the undef symbols list */ if (!remove_symbol_holes() && check_unused( imp, spec )) { /* the dll is not used, get rid of it */ warning( "%s imported but no symbols used\n", imp->spec->file_name ); remove_import_dll( i ); i--; } } return 1; } /* output a single import thunk */ static void output_import_thunk( FILE *outfile, const char *name, const char *table, int pos ) { fprintf( outfile, " \"\\t.align %d\\n\"\n", get_alignment(4) ); fprintf( outfile, " \"\\t%s\\n\"\n", func_declaration(name) ); fprintf( outfile, " \"\\t.globl %s\\n\"\n", asm_name(name) ); fprintf( outfile, " \"%s:\\n\"\n", asm_name(name) ); switch(target_cpu) { case CPU_x86: if (!UsePIC) { if (strstr( name, "__wine_call_from_16" )) fprintf( outfile, " \"\\t.byte 0x2e\\n\"\n" ); fprintf( outfile, " \"\\tjmp *(%s+%d)\\n\"\n", asm_name(table), pos ); } else { if (!strcmp( name, "__wine_call_from_32_regs" )) { /* special case: need to preserve all registers */ fprintf( outfile, " \"\\tpushl %%eax\\n\"\n" ); fprintf( outfile, " \"\\tcall .L__wine_spec_%s\\n\"\n", name ); fprintf( outfile, " \".L__wine_spec_%s:\\n\"\n", name ); fprintf( outfile, " \"\\tpopl %%eax\\n\"\n" ); if (!strcmp( name, "__wine_call_from_16_regs" )) fprintf( outfile, " \"\\t.byte 0x2e\\n\"\n" ); fprintf( outfile, " \"\\tmovl %s+%d-.L__wine_spec_%s(%%eax),%%eax\\n\"\n", asm_name(table), pos, name ); fprintf( outfile, " \"\\txchgl %%eax,(%%esp)\\n\"\n" ); fprintf( outfile, " \"\\tret\\n\"\n" ); } else if (!strcmp( name, "__wine_call_from_16_regs" )) { /* special case: need to preserve all registers */ fprintf( outfile, " \"\\tpushl %%eax\\n\"\n" ); fprintf( outfile, " \"\\tpushl %%ecx\\n\"\n" ); fprintf( outfile, " \"\\tcall .L__wine_spec_%s\\n\"\n", name ); fprintf( outfile, " \".L__wine_spec_%s:\\n\"\n", name ); fprintf( outfile, " \"\\tpopl %%eax\\n\"\n" ); fprintf( outfile, " \"\\t.byte 0x2e\\n\"\n" ); fprintf( outfile, " \"\\tmovl %s+%d-.L__wine_spec_%s(%%eax),%%eax\\n\"\n", asm_name(table), pos, name ); fprintf( outfile, " \"\\tmovzwl %%sp, %%ecx\\n\"\n" ); fprintf( outfile, " \"\\t.byte 0x36\\n\"\n" ); fprintf( outfile, " \"\\txchgl %%eax,4(%%ecx)\\n\"\n" ); fprintf( outfile, " \"\\tpopl %%ecx\\n\"\n" ); fprintf( outfile, " \"\\tret\\n\"\n" ); } else { fprintf( outfile, " \"\\tcall .L__wine_spec_%s\\n\"\n", name ); fprintf( outfile, " \".L__wine_spec_%s:\\n\"\n", name ); fprintf( outfile, " \"\\tpopl %%eax\\n\"\n" ); if (strstr( name, "__wine_call_from_16" )) fprintf( outfile, " \"\\t.byte 0x2e\\n\"\n" ); fprintf( outfile, " \"\\tjmp *%s+%d-.L__wine_spec_%s(%%eax)\\n\"\n", asm_name(table), pos, name ); } } break; case CPU_SPARC: if ( !UsePIC ) { fprintf( outfile, " \"\\tsethi %%hi(%s+%d), %%g1\\n\"\n", table, pos ); fprintf( outfile, " \"\\tld [%%g1+%%lo(%s+%d)], %%g1\\n\"\n", table, pos ); fprintf( outfile, " \"\\tjmp %%g1\\n\\tnop\\n\"\n" ); } else { /* Hmpf. Stupid sparc assembler always interprets global variable names as GOT offsets, so we have to do it the long way ... */ fprintf( outfile, " \"\\tsave %%sp, -96, %%sp\\n\"\n" ); fprintf( outfile, " \"0:\\tcall 1f\\n\\tnop\\n\"\n" ); fprintf( outfile, " \"1:\\tsethi %%hi(%s+%d-0b), %%g1\\n\"\n", table, pos ); fprintf( outfile, " \"\\tor %%g1, %%lo(%s+%d-0b), %%g1\\n\"\n", table, pos ); fprintf( outfile, " \"\\tld [%%g1+%%o7], %%g1\\n\"\n" ); fprintf( outfile, " \"\\tjmp %%g1\\n\\trestore\\n\"\n" ); } break; case CPU_ALPHA: fprintf( outfile, " \"\\tlda $0,%s\\n\"\n", table ); fprintf( outfile, " \"\\tlda $0,%d($0)\\n\"\n", pos); fprintf( outfile, " \"\\tjmp $31,($0)\\n\"\n" ); break; case CPU_POWERPC: fprintf(outfile, " \"\\taddi %s, %s, -0x4\\n\"\n", ppc_reg(1), ppc_reg(1)); fprintf(outfile, " \"\\tstw %s, 0(%s)\\n\"\n", ppc_reg(9), ppc_reg(1)); fprintf(outfile, " \"\\taddi %s, %s, -0x4\\n\"\n", ppc_reg(1), ppc_reg(1)); fprintf(outfile, " \"\\tstw %s, 0(%s)\\n\"\n", ppc_reg(8), ppc_reg(1)); fprintf(outfile, " \"\\taddi %s, %s, -0x4\\n\"\n", ppc_reg(1), ppc_reg(1)); fprintf(outfile, " \"\\tstw %s, 0(%s)\\n\"\n", ppc_reg(7), ppc_reg(1)); if (target_platform == PLATFORM_APPLE) { fprintf(outfile, " \"\\tlis %s, ha16(%s+%d)\\n\"\n", ppc_reg(9), asm_name(table), pos); fprintf(outfile, " \"\\tla %s, lo16(%s+%d)(%s)\\n\"\n", ppc_reg(8), asm_name(table), pos, ppc_reg(9)); } else { fprintf(outfile, " \"\\tlis %s, (%s+%d)@hi\\n\"\n", ppc_reg(9), asm_name(table), pos); fprintf(outfile, " \"\\tla %s, (%s+%d)@l(%s)\\n\"\n", ppc_reg(8), asm_name(table), pos, ppc_reg(9)); } fprintf(outfile, " \"\\tlwz %s, 0(%s)\\n\"\n", ppc_reg(7), ppc_reg(8)); fprintf(outfile, " \"\\tmtctr %s\\n\"\n", ppc_reg(7)); fprintf(outfile, " \"\\tlwz %s, 0(%s)\\n\"\n", ppc_reg(7), ppc_reg(1)); fprintf(outfile, " \"\\taddi %s, %s, 0x4\\n\"\n", ppc_reg(1), ppc_reg(1)); fprintf(outfile, " \"\\tlwz %s, 0(%s)\\n\"\n", ppc_reg(8), ppc_reg(1)); fprintf(outfile, " \"\\taddi %s, %s, 0x4\\n\"\n", ppc_reg(1), ppc_reg(1)); fprintf(outfile, " \"\\tlwz %s, 0(%s)\\n\"\n", ppc_reg(9), ppc_reg(1)); fprintf(outfile, " \"\\taddi %s, %s, 0x4\\n\"\n", ppc_reg(1), ppc_reg(1)); fprintf(outfile, " \"\\tbctr\\n\"\n"); break; } output_function_size( outfile, name ); } /* output the import table of a Win32 module */ static int output_immediate_imports( FILE *outfile ) { int i, j, nb_imm = nb_imports - nb_delayed; if (!nb_imm) return 0; /* main import header */ fprintf( outfile, "\nstatic struct {\n" ); fprintf( outfile, " struct {\n" ); fprintf( outfile, " void *OriginalFirstThunk;\n" ); fprintf( outfile, " unsigned int TimeDateStamp;\n" ); fprintf( outfile, " unsigned int ForwarderChain;\n" ); fprintf( outfile, " const char *Name;\n" ); fprintf( outfile, " void *FirstThunk;\n" ); fprintf( outfile, " } imp[%d];\n", nb_imm+1 ); fprintf( outfile, " const char *data[%d];\n", total_imports - total_delayed + nb_imm ); fprintf( outfile, "} imports = {\n {\n" ); /* list of dlls */ for (i = j = 0; i < nb_imports; i++) { if (dll_imports[i]->delay) continue; fprintf( outfile, " { 0, 0, 0, \"%s\", &imports.data[%d] },\n", dll_imports[i]->spec->file_name, j ); j += dll_imports[i]->nb_imports + 1; } fprintf( outfile, " { 0, 0, 0, 0, 0 },\n" ); fprintf( outfile, " },\n {\n" ); /* list of imported functions */ for (i = 0; i < nb_imports; i++) { if (dll_imports[i]->delay) continue; fprintf( outfile, " /* %s */\n", dll_imports[i]->spec->file_name ); for (j = 0; j < dll_imports[i]->nb_imports; j++) { ORDDEF *odp = dll_imports[i]->imports[j]; if (!(odp->flags & FLAG_NONAME)) { unsigned short ord = odp->ordinal; fprintf( outfile, " \"\\%03o\\%03o%s\",\n", *(unsigned char *)&ord, *((unsigned char *)&ord + 1), odp->name ); } else fprintf( outfile, " (char *)%d,\n", odp->ordinal ); } fprintf( outfile, " 0,\n" ); } fprintf( outfile, " }\n};\n\n" ); return nb_imm; } /* output the import thunks of a Win32 module */ static void output_immediate_import_thunks( FILE *outfile ) { int i, j, pos; int nb_imm = nb_imports - nb_delayed; static const char import_thunks[] = "__wine_spec_import_thunks"; if (!nb_imm) return; pos = (sizeof(void *) + 2*sizeof(unsigned int) + sizeof(const char *) + sizeof(void *)) * (nb_imm + 1); /* offset of imports.data from start of imports */ fprintf( outfile, "/* immediate import thunks */\n" ); fprintf( outfile, "asm(\".text\\n\\t.align %d\\n\"\n", get_alignment(8) ); fprintf( outfile, " \"%s:\\n\"\n", asm_name(import_thunks)); for (i = 0; i < nb_imports; i++) { if (dll_imports[i]->delay) continue; for (j = 0; j < dll_imports[i]->nb_imports; j++, pos += sizeof(const char *)) { ORDDEF *odp = dll_imports[i]->imports[j]; output_import_thunk( outfile, odp->name ? odp->name : odp->export_name, "imports", pos ); } pos += 4; } output_function_size( outfile, import_thunks ); fprintf( outfile, ");\n" ); } /* output the delayed import table of a Win32 module */ static int output_delayed_imports( FILE *outfile, const DLLSPEC *spec ) { int i, j; if (!nb_delayed) return 0; fprintf( outfile, "static void *__wine_delay_imp_hmod[%d];\n", nb_delayed ); for (i = 0; i < nb_imports; i++) { if (!dll_imports[i]->delay) continue; for (j = 0; j < dll_imports[i]->nb_imports; j++) { ORDDEF *odp = dll_imports[i]->imports[j]; const char *name = odp->name ? odp->name : odp->export_name; fprintf( outfile, "void __wine_delay_imp_%d_%s();\n", i, name ); } } fprintf( outfile, "\n" ); fprintf( outfile, "static struct {\n" ); fprintf( outfile, " struct ImgDelayDescr {\n" ); fprintf( outfile, " unsigned int grAttrs;\n" ); fprintf( outfile, " const char *szName;\n" ); fprintf( outfile, " void **phmod;\n" ); fprintf( outfile, " void **pIAT;\n" ); fprintf( outfile, " const char **pINT;\n" ); fprintf( outfile, " void* pBoundIAT;\n" ); fprintf( outfile, " void* pUnloadIAT;\n" ); fprintf( outfile, " unsigned long dwTimeStamp;\n" ); fprintf( outfile, " } imp[%d];\n", nb_delayed ); fprintf( outfile, " void *IAT[%d];\n", total_delayed ); fprintf( outfile, " const char *INT[%d];\n", total_delayed ); fprintf( outfile, "} delay_imports = {\n" ); fprintf( outfile, " {\n" ); for (i = j = 0; i < nb_imports; i++) { if (!dll_imports[i]->delay) continue; fprintf( outfile, " { 0, \"%s\", &__wine_delay_imp_hmod[%d], &delay_imports.IAT[%d], &delay_imports.INT[%d], 0, 0, 0 },\n", dll_imports[i]->spec->file_name, i, j, j ); j += dll_imports[i]->nb_imports; } fprintf( outfile, " },\n {\n" ); for (i = 0; i < nb_imports; i++) { if (!dll_imports[i]->delay) continue; fprintf( outfile, " /* %s */\n", dll_imports[i]->spec->file_name ); for (j = 0; j < dll_imports[i]->nb_imports; j++) { ORDDEF *odp = dll_imports[i]->imports[j]; const char *name = odp->name ? odp->name : odp->export_name; fprintf( outfile, " &__wine_delay_imp_%d_%s,\n", i, name ); } } fprintf( outfile, " },\n {\n" ); for (i = 0; i < nb_imports; i++) { if (!dll_imports[i]->delay) continue; fprintf( outfile, " /* %s */\n", dll_imports[i]->spec->file_name ); for (j = 0; j < dll_imports[i]->nb_imports; j++) { ORDDEF *odp = dll_imports[i]->imports[j]; if (!odp->name) fprintf( outfile, " (char *)%d,\n", odp->ordinal ); else fprintf( outfile, " \"%s\",\n", odp->name ); } } fprintf( outfile, " }\n};\n\n" ); fprintf( outfile, "extern void __stdcall RaiseException(unsigned int, unsigned int, unsigned int, const void *args[]);\n" ); fprintf( outfile, "extern void * __stdcall LoadLibraryA(const char*);\n"); fprintf( outfile, "extern void * __stdcall GetProcAddress(void *, const char*);\n"); fprintf( outfile, "\n" ); fprintf( outfile, "void *__stdcall __wine_delay_load( int idx_nr )\n" ); fprintf( outfile, "{\n" ); fprintf( outfile, " int idx = idx_nr >> 16, nr = idx_nr & 0xffff;\n" ); fprintf( outfile, " struct ImgDelayDescr *imd = delay_imports.imp + idx;\n" ); fprintf( outfile, " void **pIAT = imd->pIAT + nr;\n" ); fprintf( outfile, " const char** pINT = imd->pINT + nr;\n" ); fprintf( outfile, " void *fn;\n\n" ); fprintf( outfile, " if (!*imd->phmod) *imd->phmod = LoadLibraryA(imd->szName);\n" ); fprintf( outfile, " if (*imd->phmod && (fn = GetProcAddress(*imd->phmod, *pINT)))\n"); fprintf( outfile, " /* patch IAT with final value */\n" ); fprintf( outfile, " return *pIAT = fn;\n" ); fprintf( outfile, " else {\n"); fprintf( outfile, " const void *args[2];\n" ); fprintf( outfile, " args[0] = imd->szName;\n" ); fprintf( outfile, " args[1] = *pINT;\n" ); fprintf( outfile, " RaiseException( 0x%08x, %d, 2, args );\n", EXCEPTION_WINE_STUB, EH_NONCONTINUABLE ); fprintf( outfile, " return 0;\n" ); fprintf( outfile, " }\n}\n" ); return nb_delayed; } /* output the delayed import thunks of a Win32 module */ static void output_delayed_import_thunks( FILE *outfile, const DLLSPEC *spec ) { int i, idx, j, pos, extra_stack_storage = 0; static const char delayed_import_loaders[] = "__wine_spec_delayed_import_loaders"; static const char delayed_import_thunks[] = "__wine_spec_delayed_import_thunks"; if (!nb_delayed) return; fprintf( outfile, "/* delayed import thunks */\n" ); fprintf( outfile, "asm(\".text\\n\"\n" ); fprintf( outfile, " \"\\t.align %d\\n\"\n", get_alignment(8) ); fprintf( outfile, " \"%s:\\n\"\n", asm_name(delayed_import_loaders)); fprintf( outfile, " \"\\t%s\\n\"\n", func_declaration("__wine_delay_load_asm") ); fprintf( outfile, " \"%s:\\n\"\n", asm_name("__wine_delay_load_asm") ); switch(target_cpu) { case CPU_x86: fprintf( outfile, " \"\\tpushl %%ecx\\n\\tpushl %%edx\\n\\tpushl %%eax\\n\"\n" ); fprintf( outfile, " \"\\tcall %s\\n\"\n", asm_name("__wine_delay_load") ); fprintf( outfile, " \"\\tpopl %%edx\\n\\tpopl %%ecx\\n\\tjmp *%%eax\\n\"\n" ); break; case CPU_SPARC: fprintf( outfile, " \"\\tsave %%sp, -96, %%sp\\n\"\n" ); fprintf( outfile, " \"\\tcall %s\\n\"\n", asm_name("__wine_delay_load") ); fprintf( outfile, " \"\\tmov %%g1, %%o0\\n\"\n" ); fprintf( outfile, " \"\\tjmp %%o0\\n\\trestore\\n\"\n" ); break; case CPU_ALPHA: fprintf( outfile, " \"\\tjsr $26,%s\\n\"\n", asm_name("__wine_delay_load") ); fprintf( outfile, " \"\\tjmp $31,($0)\\n\"\n" ); break; case CPU_POWERPC: if (target_platform == PLATFORM_APPLE) extra_stack_storage = 56; /* Save all callee saved registers into a stackframe. */ fprintf( outfile, " \"\\tstwu %s, -%d(%s)\\n\"\n",ppc_reg(1), 48+extra_stack_storage, ppc_reg(1)); fprintf( outfile, " \"\\tstw %s, %d(%s)\\n\"\n", ppc_reg(3), 4+extra_stack_storage, ppc_reg(1)); fprintf( outfile, " \"\\tstw %s, %d(%s)\\n\"\n", ppc_reg(4), 8+extra_stack_storage, ppc_reg(1)); fprintf( outfile, " \"\\tstw %s, %d(%s)\\n\"\n", ppc_reg(5), 12+extra_stack_storage, ppc_reg(1)); fprintf( outfile, " \"\\tstw %s, %d(%s)\\n\"\n", ppc_reg(6), 16+extra_stack_storage, ppc_reg(1)); fprintf( outfile, " \"\\tstw %s, %d(%s)\\n\"\n", ppc_reg(7), 20+extra_stack_storage, ppc_reg(1)); fprintf( outfile, " \"\\tstw %s, %d(%s)\\n\"\n", ppc_reg(8), 24+extra_stack_storage, ppc_reg(1)); fprintf( outfile, " \"\\tstw %s, %d(%s)\\n\"\n", ppc_reg(9), 28+extra_stack_storage, ppc_reg(1)); fprintf( outfile, " \"\\tstw %s, %d(%s)\\n\"\n", ppc_reg(10),32+extra_stack_storage, ppc_reg(1)); fprintf( outfile, " \"\\tstw %s, %d(%s)\\n\"\n", ppc_reg(11),36+extra_stack_storage, ppc_reg(1)); fprintf( outfile, " \"\\tstw %s, %d(%s)\\n\"\n", ppc_reg(12),40+extra_stack_storage, ppc_reg(1)); /* r0 -> r3 (arg1) */ fprintf( outfile, " \"\\tmr %s, %s\\n\"\n", ppc_reg(3), ppc_reg(0)); /* save return address */ fprintf( outfile, " \"\\tmflr %s\\n\"\n", ppc_reg(0)); fprintf( outfile, " \"\\tstw %s, %d(%s)\\n\"\n", ppc_reg(0), 44+extra_stack_storage, ppc_reg(1)); /* Call the __wine_delay_load function, arg1 is arg1. */ fprintf( outfile, " \"\\tbl %s\\n\"\n", asm_name("__wine_delay_load") ); /* Load return value from call into ctr register */ fprintf( outfile, " \"\\tmtctr %s\\n\"\n", ppc_reg(3)); /* restore all saved registers and drop stackframe. */ fprintf( outfile, " \"\\tlwz %s, %d(%s)\\n\"\n", ppc_reg(3), 4+extra_stack_storage, ppc_reg(1)); fprintf( outfile, " \"\\tlwz %s, %d(%s)\\n\"\n", ppc_reg(4), 8+extra_stack_storage, ppc_reg(1)); fprintf( outfile, " \"\\tlwz %s, %d(%s)\\n\"\n", ppc_reg(5), 12+extra_stack_storage, ppc_reg(1)); fprintf( outfile, " \"\\tlwz %s, %d(%s)\\n\"\n", ppc_reg(6), 16+extra_stack_storage, ppc_reg(1)); fprintf( outfile, " \"\\tlwz %s, %d(%s)\\n\"\n", ppc_reg(7), 20+extra_stack_storage, ppc_reg(1)); fprintf( outfile, " \"\\tlwz %s, %d(%s)\\n\"\n", ppc_reg(8), 24+extra_stack_storage, ppc_reg(1)); fprintf( outfile, " \"\\tlwz %s, %d(%s)\\n\"\n", ppc_reg(9), 28+extra_stack_storage, ppc_reg(1)); fprintf( outfile, " \"\\tlwz %s, %d(%s)\\n\"\n", ppc_reg(10),32+extra_stack_storage, ppc_reg(1)); fprintf( outfile, " \"\\tlwz %s, %d(%s)\\n\"\n", ppc_reg(11),36+extra_stack_storage, ppc_reg(1)); fprintf( outfile, " \"\\tlwz %s, %d(%s)\\n\"\n", ppc_reg(12),40+extra_stack_storage, ppc_reg(1)); /* Load return value from call into return register */ fprintf( outfile, " \"\\tlwz %s, %d(%s)\\n\"\n", ppc_reg(0), 44+extra_stack_storage, ppc_reg(1)); fprintf( outfile, " \"\\tmtlr %s\\n\"\n", ppc_reg(0)); fprintf( outfile, " \"\\taddi %s, %s, %d\\n\"\n", ppc_reg(1), ppc_reg(1), 48+extra_stack_storage); /* branch to ctr register. */ fprintf( outfile, " \"bctr\\n\"\n"); break; } output_function_size( outfile, "__wine_delay_load_asm" ); for (i = idx = 0; i < nb_imports; i++) { if (!dll_imports[i]->delay) continue; for (j = 0; j < dll_imports[i]->nb_imports; j++) { char buffer[128]; ORDDEF *odp = dll_imports[i]->imports[j]; const char *name = odp->name ? odp->name : odp->export_name; sprintf( buffer, "__wine_delay_imp_%d_%s", i, name ); fprintf( outfile, " \"\\t%s\\n\"\n", func_declaration(buffer) ); fprintf( outfile, " \"%s:\\n\"\n", asm_name(buffer) ); switch(target_cpu) { case CPU_x86: fprintf( outfile, " \"\\tmovl $%d, %%eax\\n\"\n", (idx << 16) | j ); fprintf( outfile, " \"\\tjmp %s\\n\"\n", asm_name("__wine_delay_load_asm") ); break; case CPU_SPARC: fprintf( outfile, " \"\\tset %d, %%g1\\n\"\n", (idx << 16) | j ); fprintf( outfile, " \"\\tb,a %s\\n\"\n", asm_name("__wine_delay_load_asm") ); break; case CPU_ALPHA: fprintf( outfile, " \"\\tlda $0,%d($31)\\n\"\n", j); fprintf( outfile, " \"\\tldah $0,%d($0)\\n\"\n", idx); fprintf( outfile, " \"\\tjmp $31,%s\\n\"\n", asm_name("__wine_delay_load_asm") ); break; case CPU_POWERPC: switch(target_platform) { case PLATFORM_APPLE: /* On Darwin we can use r0 and r2 */ /* Upper part in r2 */ fprintf( outfile, " \"\\tlis %s, %d\\n\"\n", ppc_reg(2), idx); /* Lower part + r2 -> r0, Note we can't use r0 directly */ fprintf( outfile, " \"\\taddi %s, %s, %d\\n\"\n", ppc_reg(0), ppc_reg(2), j); fprintf( outfile, " \"\\tb %s\\n\"\n", asm_name("__wine_delay_load_asm") ); break; default: /* On linux we can't use r2 since r2 is not a scratch register (hold the TOC) */ /* Save r13 on the stack */ fprintf( outfile, " \"\\taddi %s, %s, -0x4\\n\"\n", ppc_reg(1), ppc_reg(1)); fprintf( outfile, " \"\\tstw %s, 0(%s)\\n\"\n", ppc_reg(13), ppc_reg(1)); /* Upper part in r13 */ fprintf( outfile, " \"\\tlis %s, %d\\n\"\n", ppc_reg(13), idx); /* Lower part + r13 -> r0, Note we can't use r0 directly */ fprintf( outfile, " \"\\taddi %s, %s, %d\\n\"\n", ppc_reg(0), ppc_reg(13), j); /* Restore r13 */ fprintf( outfile, " \"\\tstw %s, 0(%s)\\n\"\n", ppc_reg(13), ppc_reg(1)); fprintf( outfile, " \"\\taddic %s, %s, 0x4\\n\"\n", ppc_reg(1), ppc_reg(1)); fprintf( outfile, " \"\\tb %s\\n\"\n", asm_name("__wine_delay_load_asm") ); break; } break; } output_function_size( outfile, name ); } idx++; } output_function_size( outfile, delayed_import_loaders ); fprintf( outfile, "\n \".align %d\\n\"\n", get_alignment(8) ); fprintf( outfile, " \"%s:\\n\"\n", asm_name(delayed_import_thunks)); pos = nb_delayed * 32; for (i = 0; i < nb_imports; i++) { if (!dll_imports[i]->delay) continue; for (j = 0; j < dll_imports[i]->nb_imports; j++, pos += 4) { ORDDEF *odp = dll_imports[i]->imports[j]; output_import_thunk( outfile, odp->name ? odp->name : odp->export_name, "delay_imports", pos ); } } output_function_size( outfile, delayed_import_thunks ); fprintf( outfile, ");\n" ); } /* output the import and delayed import tables of a Win32 module * returns number of DLLs exported in 'immediate' mode */ int output_imports( FILE *outfile, DLLSPEC *spec, int *nb_delayed ) { *nb_delayed = output_delayed_imports( outfile, spec ); return output_immediate_imports( outfile ); } /* output the import and delayed import thunks of a Win32 module */ void output_import_thunks( FILE *outfile, DLLSPEC *spec ) { output_delayed_import_thunks( outfile, spec ); output_immediate_import_thunks( outfile ); }