/* * 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 #include #ifdef HAVE_SYS_STAT_H # include #endif #ifdef HAVE_UNISTD_H # include #endif #include "windef.h" #include "winbase.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 */ }; struct name_table { char **names; unsigned int count, size; }; static struct name_table undef_symbols; /* list of undefined symbols */ static struct name_table ignore_symbols; /* list of symbols to ignore */ static struct name_table extra_ld_symbols; /* list of extra symbols that ld should resolve */ static struct name_table delayed_imports; /* list of delayed import dlls */ static struct name_table ext_link_imports; /* list of external symbols to link to */ 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 */ /* 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 ); } /* add a name to a name table */ inline static void add_name( struct name_table *table, const char *name ) { if (table->count == table->size) { table->size += (table->size / 2); if (table->size < 32) table->size = 32; table->names = xrealloc( table->names, table->size * sizeof(*table->names) ); } table->names[table->count++] = xstrdup( name ); } /* remove a name from a name table */ inline static void remove_name( struct name_table *table, unsigned int idx ) { assert( idx < table->count ); free( table->names[idx] ); memmove( table->names + idx, table->names + idx + 1, (table->count - idx - 1) * sizeof(*table->names) ); table->count--; } /* make a name table empty */ inline static void empty_name_table( struct name_table *table ) { unsigned int i; for (i = 0; i < table->count; i++) free( table->names[i] ); table->count = 0; } /* locate a name in a (sorted) list */ inline static const char *find_name( const char *name, const struct name_table *table ) { char **res = NULL; if (table->count) res = bsearch( &name, table->names, table->count, sizeof(*table->names), name_cmp ); return res ? *res : NULL; } /* sort a name table */ inline static void sort_names( struct name_table *table ) { if (table->count) qsort( table->names, table->count, sizeof(*table->names), name_cmp ); } /* 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; } /* 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 ); } /* check whether a given dll is imported in delayed mode */ static int is_delayed_import( const char *name ) { int i; for (i = 0; i < delayed_imports.count; i++) { if (!strcmp( delayed_imports.names[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 ); add_name( &delayed_imports, fullname ); if ((imp = is_already_imported( fullname )) && !imp->delay) { imp->delay = 1; nb_delayed++; } free( fullname ); } /* 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) { unsigned int i; for (i = 0; i < sizeof(default_ignored_symbols)/sizeof(default_ignored_symbols[0]); i++) add_name( &ignore_symbols, 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 ) { unsigned int i; if (!ignore_symbols.size) init_ignored_symbols(); /* first time around, fill list with defaults */ if (name[0] == '-') /* remove it */ { if (!name[1]) empty_name_table( &ignore_symbols ); /* remove everything */ else for (i = 0; i < ignore_symbols.count; i++) { if (!strcmp( ignore_symbols.names[i], name+1 )) remove_name( &ignore_symbols, i-- ); } } else add_name( &ignore_symbols, name ); } /* add a symbol to the list of extra symbols that ld must resolve */ void add_extra_ld_symbol( const char *name ) { add_name( &extra_ld_symbols, 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++; } /* get the default entry point for a given spec file */ static const char *get_default_entry_point( const DLLSPEC *spec ) { if (spec->characteristics & IMAGE_FILE_DLL) return "__wine_spec_dll_entry"; if (spec->subsystem == IMAGE_SUBSYSTEM_NATIVE) return "__wine_spec_drv_entry"; return "__wine_spec_exe_entry"; } /* check if the spec file exports any stubs */ static int has_stubs( const DLLSPEC *spec ) { int i; for (i = 0; i < spec->nb_entry_points; i++) { ORDDEF *odp = &spec->entry_points[i]; if (odp->type == TYPE_STUB) return 1; } return 0; } /* add the extra undefined symbols that will be contained in the generated spec file itself */ static void add_extra_undef_symbols( DLLSPEC *spec ) { if (!spec->init_func) spec->init_func = xstrdup( get_default_entry_point(spec) ); add_extra_ld_symbol( spec->init_func ); if (has_stubs( spec )) add_extra_ld_symbol( "__wine_spec_unimplemented_stub" ); if (nb_delayed) add_extra_ld_symbol( "__wine_spec_delay_load" ); } /* 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; } /* flag the dll exports that link to an undefined symbol */ static void check_undefined_exports( DLLSPEC *spec ) { int i; for (i = 0; i < spec->nb_entry_points; i++) { ORDDEF *odp = &spec->entry_points[i]; if (odp->type == TYPE_STUB) continue; if (odp->flags & FLAG_FORWARD) continue; if (find_name( odp->link_name, &undef_symbols )) { odp->flags |= FLAG_EXT_LINK; add_name( &ext_link_imports, odp->link_name ); } } } /* create a .o file that references all the undefined symbols we want to resolve */ static char *create_undef_symbols_file( DLLSPEC *spec ) { char *as_file, *obj_file; unsigned int i; FILE *f; as_file = get_temp_file_name( output_file_name, ".s" ); if (!(f = fopen( as_file, "w" ))) fatal_error( "Cannot create %s\n", as_file ); fprintf( f, "\t.data\n" ); for (i = 0; i < spec->nb_entry_points; i++) { ORDDEF *odp = &spec->entry_points[i]; if (odp->type == TYPE_STUB) continue; if (odp->flags & FLAG_FORWARD) continue; fprintf( f, "\t%s %s\n", get_asm_ptr_keyword(), asm_name(odp->link_name) ); } for (i = 0; i < extra_ld_symbols.count; i++) fprintf( f, "\t%s %s\n", get_asm_ptr_keyword(), asm_name(extra_ld_symbols.names[i]) ); fclose( f ); obj_file = get_temp_file_name( output_file_name, ".o" ); assemble_file( as_file, obj_file ); return obj_file; } /* 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( DLLSPEC *spec, char **argv ) { unsigned int i, len = 0; char *cmd, *p, *ld_tmp_file, *undef_file; int err; undef_file = create_undef_symbols_file( spec ); len += strlen(undef_file) + 1; ld_tmp_file = get_temp_file_name( output_file_name, ".o" ); if (!ld_command) ld_command = xstrdup("ld"); for (i = 0; argv[i]; i++) len += strlen(argv[i]) + 1; cmd = p = xmalloc( len + strlen(ld_tmp_file) + 8 + strlen(ld_command) ); p += sprintf( cmd, "%s -r -o %s %s", ld_command, ld_tmp_file, undef_file ); for (i = 0; argv[i]; i++) p += sprintf( p, " %s", argv[i] ); if (verbose) fprintf( stderr, "%s\n", cmd ); 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( DLLSPEC *spec, char **argv ) { size_t prefix_len; FILE *f; char *cmd, buffer[1024], name_prefix[16]; int err; const char *name; if (!argv[0]) return; add_extra_undef_symbols( spec ); strcpy( name_prefix, asm_name("") ); prefix_len = strlen( name_prefix ); name = ldcombine_files( spec, argv ); 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_name( &undef_symbols, p ); } if ((err = pclose( f ))) warning( "%s failed with status %d\n", cmd, err ); free( cmd ); } /* resolve the imports for a Win32 module */ int resolve_imports( DLLSPEC *spec ) { unsigned int i, j, removed; ORDDEF *odp; if (!ignore_symbols.size) init_ignored_symbols(); sort_names( &ignore_symbols ); for (i = 0; i < nb_imports; i++) { struct import *imp = dll_imports[i]; for (j = removed = 0; j < undef_symbols.count; j++) { if (find_name( undef_symbols.names[j], &ignore_symbols )) continue; odp = find_export( undef_symbols.names[j], imp->exports, imp->nb_exports ); if (odp) { add_import_func( imp, odp ); remove_name( &undef_symbols, j-- ); removed++; } } if (!removed && 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--; } } sort_names( &undef_symbols ); check_undefined_exports( spec ); return 1; } /* output the get_pc thunk if needed */ void output_get_pc_thunk( FILE *outfile ) { if (target_cpu != CPU_x86) return; if (!UsePIC) return; fprintf( outfile, "\n\t.text\n" ); fprintf( outfile, "\t.align %d\n", get_alignment(4) ); fprintf( outfile, "\t%s\n", func_declaration("__wine_spec_get_pc_thunk_eax") ); fprintf( outfile, "%s:\n", asm_name("__wine_spec_get_pc_thunk_eax") ); fprintf( outfile, "\tpopl %%eax\n" ); fprintf( outfile, "\tpushl %%eax\n" ); fprintf( outfile, "\tret\n" ); output_function_size( outfile, "__wine_spec_get_pc_thunk_eax" ); } /* output a single import thunk */ static void output_import_thunk( FILE *outfile, const char *name, const char *table, int pos ) { fprintf( outfile, "\n\t.align %d\n", get_alignment(4) ); fprintf( outfile, "\t%s\n", func_declaration(name) ); fprintf( outfile, "%s\n", asm_globl(name) ); switch(target_cpu) { case CPU_x86: if (!UsePIC) { fprintf( outfile, "\tjmp *(%s+%d)\n", table, pos ); } else { fprintf( outfile, "\tcall %s\n", asm_name("__wine_spec_get_pc_thunk_eax") ); fprintf( outfile, "1:\tjmp *%s+%d-1b(%%eax)\n", table, pos ); } break; case CPU_x86_64: fprintf( outfile, "\tjmpq *%s+%d(%%rip)\n", table, pos ); break; case CPU_SPARC: if ( !UsePIC ) { fprintf( outfile, "\tsethi %%hi(%s+%d), %%g1\n", table, pos ); fprintf( outfile, "\tld [%%g1+%%lo(%s+%d)], %%g1\n", table, pos ); fprintf( outfile, "\tjmp %%g1\n" ); fprintf( outfile, "\tnop\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" ); fprintf( outfile, "0:\tcall 1f\n" ); fprintf( outfile, "\tnop\n" ); fprintf( outfile, "1:\tsethi %%hi(%s+%d-0b), %%g1\n", table, pos ); fprintf( outfile, "\tor %%g1, %%lo(%s+%d-0b), %%g1\n", table, pos ); fprintf( outfile, "\tld [%%g1+%%o7], %%g1\n" ); fprintf( outfile, "\tjmp %%g1\n" ); fprintf( outfile, "\trestore\n" ); } break; case CPU_ALPHA: fprintf( outfile, "\tlda $0,%s\n", table ); fprintf( outfile, "\tlda $0,%d($0)\n", pos ); fprintf( outfile, "\tjmp $31,($0)\n" ); break; case CPU_POWERPC: fprintf( outfile, "\taddi %s, %s, -0x4\n", ppc_reg(1), ppc_reg(1) ); fprintf( outfile, "\tstw %s, 0(%s)\n", ppc_reg(9), ppc_reg(1) ); fprintf( outfile, "\taddi %s, %s, -0x4\n", ppc_reg(1), ppc_reg(1) ); fprintf( outfile, "\tstw %s, 0(%s)\n", ppc_reg(8), ppc_reg(1) ); fprintf( outfile, "\taddi %s, %s, -0x4\n", ppc_reg(1), ppc_reg(1) ); fprintf( outfile, "\tstw %s, 0(%s)\n", ppc_reg(7), ppc_reg(1) ); if (target_platform == PLATFORM_APPLE) { fprintf( outfile, "\tlis %s, ha16(%s+%d)\n", ppc_reg(9), table, pos ); fprintf( outfile, "\tla %s, lo16(%s+%d)(%s)\n", ppc_reg(8), table, pos, ppc_reg(9) ); } else { fprintf( outfile, "\tlis %s, (%s+%d)@h\n", ppc_reg(9), table, pos ); fprintf( outfile, "\tla %s, (%s+%d)@l(%s)\n", ppc_reg(8), table, pos, ppc_reg(9) ); } fprintf( outfile, "\tlwz %s, 0(%s)\n", ppc_reg(7), ppc_reg(8) ); fprintf( outfile, "\tmtctr %s\n", ppc_reg(7) ); fprintf( outfile, "\tlwz %s, 0(%s)\n", ppc_reg(7), ppc_reg(1) ); fprintf( outfile, "\taddi %s, %s, 0x4\n", ppc_reg(1), ppc_reg(1) ); fprintf( outfile, "\tlwz %s, 0(%s)\n", ppc_reg(8), ppc_reg(1) ); fprintf( outfile, "\taddi %s, %s, 0x4\n", ppc_reg(1), ppc_reg(1) ); fprintf( outfile, "\tlwz %s, 0(%s)\n", ppc_reg(9), ppc_reg(1) ); fprintf( outfile, "\taddi %s, %s, 0x4\n", ppc_reg(1), ppc_reg(1) ); fprintf( outfile, "\tbctr\n" ); break; } output_function_size( outfile, name ); } /* check if we need an import directory */ int has_imports(void) { return (nb_imports - nb_delayed) > 0; } /* output the import table of a Win32 module */ static void output_immediate_imports( FILE *outfile ) { int i, j; const char *dll_name; if (nb_imports == nb_delayed) return; /* no immediate imports */ /* main import header */ fprintf( outfile, "\n/* import table */\n" ); fprintf( outfile, "\n\t.data\n" ); fprintf( outfile, "\t.align %d\n", get_alignment(4) ); fprintf( outfile, ".L__wine_spec_imports:\n" ); /* list of dlls */ for (i = j = 0; i < nb_imports; i++) { if (dll_imports[i]->delay) continue; dll_name = make_c_identifier( dll_imports[i]->spec->file_name ); fprintf( outfile, "\t.long 0\n" ); /* OriginalFirstThunk */ fprintf( outfile, "\t.long 0\n" ); /* TimeDateStamp */ fprintf( outfile, "\t.long 0\n" ); /* ForwarderChain */ fprintf( outfile, "\t.long .L__wine_spec_import_name_%s-.L__wine_spec_rva_base\n", /* Name */ dll_name ); fprintf( outfile, "\t.long .L__wine_spec_import_data_ptrs+%d-.L__wine_spec_rva_base\n", /* FirstThunk */ j * get_ptr_size() ); j += dll_imports[i]->nb_imports + 1; } fprintf( outfile, "\t.long 0\n" ); /* OriginalFirstThunk */ fprintf( outfile, "\t.long 0\n" ); /* TimeDateStamp */ fprintf( outfile, "\t.long 0\n" ); /* ForwarderChain */ fprintf( outfile, "\t.long 0\n" ); /* Name */ fprintf( outfile, "\t.long 0\n" ); /* FirstThunk */ fprintf( outfile, "\n\t.align %d\n", get_alignment(get_ptr_size()) ); fprintf( outfile, ".L__wine_spec_import_data_ptrs:\n" ); for (i = 0; i < nb_imports; i++) { if (dll_imports[i]->delay) continue; dll_name = make_c_identifier( 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)) fprintf( outfile, "\t%s .L__wine_spec_import_data_%s_%s-.L__wine_spec_rva_base\n", get_asm_ptr_keyword(), dll_name, odp->name ); else { if (get_ptr_size() == 8) fprintf( outfile, "\t.quad 0x800000000000%04x\n", odp->ordinal ); else fprintf( outfile, "\t.long 0x8000%04x\n", odp->ordinal ); } } fprintf( outfile, "\t%s 0\n", get_asm_ptr_keyword() ); } fprintf( outfile, ".L__wine_spec_imports_end:\n" ); for (i = 0; i < nb_imports; i++) { if (dll_imports[i]->delay) continue; dll_name = make_c_identifier( 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)) { fprintf( outfile, "\t.align %d\n", get_alignment(2) ); fprintf( outfile, ".L__wine_spec_import_data_%s_%s:\n", dll_name, odp->name ); fprintf( outfile, "\t%s %d\n", get_asm_short_keyword(), odp->ordinal ); fprintf( outfile, "\t%s \"%s\"\n", get_asm_string_keyword(), odp->name ); } } } for (i = 0; i < nb_imports; i++) { if (dll_imports[i]->delay) continue; dll_name = make_c_identifier( dll_imports[i]->spec->file_name ); fprintf( outfile, ".L__wine_spec_import_name_%s:\n\t%s \"%s\"\n", dll_name, get_asm_string_keyword(), dll_imports[i]->spec->file_name ); } } /* 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; fprintf( outfile, "\n/* immediate import thunks */\n\n" ); fprintf( outfile, "\t.text\n" ); fprintf( outfile, "\t.align %d\n", get_alignment(8) ); fprintf( outfile, "%s:\n", asm_name(import_thunks)); for (i = pos = 0; i < nb_imports; i++) { if (dll_imports[i]->delay) continue; for (j = 0; j < dll_imports[i]->nb_imports; j++, pos += get_ptr_size()) { ORDDEF *odp = dll_imports[i]->imports[j]; output_import_thunk( outfile, odp->name ? odp->name : odp->export_name, ".L__wine_spec_import_data_ptrs", pos ); } pos += get_ptr_size(); } output_function_size( outfile, import_thunks ); } /* output the delayed import table of a Win32 module */ static void output_delayed_imports( FILE *outfile, const DLLSPEC *spec ) { int i, j; if (!nb_delayed) return; fprintf( outfile, "\n/* delayed imports */\n\n" ); fprintf( outfile, "\t.data\n" ); fprintf( outfile, "\t.align %d\n", get_alignment(get_ptr_size()) ); fprintf( outfile, "%s\n", asm_globl("__wine_spec_delay_imports") ); /* list of dlls */ for (i = j = 0; i < nb_imports; i++) { if (!dll_imports[i]->delay) continue; fprintf( outfile, "\t%s 0\n", get_asm_ptr_keyword() ); /* grAttrs */ fprintf( outfile, "\t%s .L__wine_delay_name_%d\n", /* szName */ get_asm_ptr_keyword(), i ); fprintf( outfile, "\t%s .L__wine_delay_modules+%d\n", /* phmod */ get_asm_ptr_keyword(), i * get_ptr_size() ); fprintf( outfile, "\t%s .L__wine_delay_IAT+%d\n", /* pIAT */ get_asm_ptr_keyword(), j * get_ptr_size() ); fprintf( outfile, "\t%s .L__wine_delay_INT+%d\n", /* pINT */ get_asm_ptr_keyword(), j * get_ptr_size() ); fprintf( outfile, "\t%s 0\n", get_asm_ptr_keyword() ); /* pBoundIAT */ fprintf( outfile, "\t%s 0\n", get_asm_ptr_keyword() ); /* pUnloadIAT */ fprintf( outfile, "\t%s 0\n", get_asm_ptr_keyword() ); /* dwTimeStamp */ j += dll_imports[i]->nb_imports; } fprintf( outfile, "\t%s 0\n", get_asm_ptr_keyword() ); /* grAttrs */ fprintf( outfile, "\t%s 0\n", get_asm_ptr_keyword() ); /* szName */ fprintf( outfile, "\t%s 0\n", get_asm_ptr_keyword() ); /* phmod */ fprintf( outfile, "\t%s 0\n", get_asm_ptr_keyword() ); /* pIAT */ fprintf( outfile, "\t%s 0\n", get_asm_ptr_keyword() ); /* pINT */ fprintf( outfile, "\t%s 0\n", get_asm_ptr_keyword() ); /* pBoundIAT */ fprintf( outfile, "\t%s 0\n", get_asm_ptr_keyword() ); /* pUnloadIAT */ fprintf( outfile, "\t%s 0\n", get_asm_ptr_keyword() ); /* dwTimeStamp */ fprintf( outfile, "\n.L__wine_delay_IAT:\n" ); 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, "\t%s .L__wine_delay_imp_%d_%s\n", get_asm_ptr_keyword(), i, name ); } } fprintf( outfile, "\n.L__wine_delay_INT:\n" ); 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]; if (!odp->name) fprintf( outfile, "\t%s %d\n", get_asm_ptr_keyword(), odp->ordinal ); else fprintf( outfile, "\t%s .L__wine_delay_data_%d_%s\n", get_asm_ptr_keyword(), i, odp->name ); } } fprintf( outfile, "\n.L__wine_delay_modules:\n" ); for (i = 0; i < nb_imports; i++) { if (dll_imports[i]->delay) fprintf( outfile, "\t%s 0\n", get_asm_ptr_keyword() ); } for (i = 0; i < nb_imports; i++) { if (!dll_imports[i]->delay) continue; fprintf( outfile, ".L__wine_delay_name_%d:\n", i ); fprintf( outfile, "\t%s \"%s\"\n", get_asm_string_keyword(), dll_imports[i]->spec->file_name ); } 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]; if (!odp->name) continue; fprintf( outfile, ".L__wine_delay_data_%d_%s:\n", i, odp->name ); fprintf( outfile, "\t%s \"%s\"\n", get_asm_string_keyword(), odp->name ); } } output_function_size( outfile, "__wine_spec_delay_imports" ); } /* 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, "\n/* delayed import thunks */\n\n" ); fprintf( outfile, "\t.text\n" ); fprintf( outfile, "\t.align %d\n", get_alignment(8) ); fprintf( outfile, "%s:\n", asm_name(delayed_import_loaders)); fprintf( outfile, "\t%s\n", func_declaration("__wine_delay_load_asm") ); fprintf( outfile, "%s:\n", asm_name("__wine_delay_load_asm") ); switch(target_cpu) { case CPU_x86: fprintf( outfile, "\tpushl %%ecx\n" ); fprintf( outfile, "\tpushl %%edx\n" ); fprintf( outfile, "\tpushl %%eax\n" ); fprintf( outfile, "\tcall %s\n", asm_name("__wine_spec_delay_load") ); fprintf( outfile, "\tpopl %%edx\n" ); fprintf( outfile, "\tpopl %%ecx\n" ); fprintf( outfile, "\tjmp *%%eax\n" ); break; case CPU_x86_64: fprintf( outfile, "\tpushq %%rdi\n" ); fprintf( outfile, "\tsubq $8,%%rsp\n" ); fprintf( outfile, "\tmovq %%r11,%%rdi\n" ); fprintf( outfile, "\tcall %s\n", asm_name("__wine_spec_delay_load") ); fprintf( outfile, "\taddq $8,%%rsp\n" ); fprintf( outfile, "\tpopq %%rdi\n" ); fprintf( outfile, "\tjmp *%%rax\n" ); break; case CPU_SPARC: fprintf( outfile, "\tsave %%sp, -96, %%sp\n" ); fprintf( outfile, "\tcall %s\n", asm_name("__wine_spec_delay_load") ); fprintf( outfile, "\tmov %%g1, %%o0\n" ); fprintf( outfile, "\tjmp %%o0\n" ); fprintf( outfile, "\trestore\n" ); break; case CPU_ALPHA: fprintf( outfile, "\tjsr $26,%s\n", asm_name("__wine_spec_delay_load") ); fprintf( outfile, "\tjmp $31,($0)\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",ppc_reg(1), 48+extra_stack_storage, ppc_reg(1)); fprintf( outfile, "\tstw %s, %d(%s)\n", ppc_reg(3), 4+extra_stack_storage, ppc_reg(1)); fprintf( outfile, "\tstw %s, %d(%s)\n", ppc_reg(4), 8+extra_stack_storage, ppc_reg(1)); fprintf( outfile, "\tstw %s, %d(%s)\n", ppc_reg(5), 12+extra_stack_storage, ppc_reg(1)); fprintf( outfile, "\tstw %s, %d(%s)\n", ppc_reg(6), 16+extra_stack_storage, ppc_reg(1)); fprintf( outfile, "\tstw %s, %d(%s)\n", ppc_reg(7), 20+extra_stack_storage, ppc_reg(1)); fprintf( outfile, "\tstw %s, %d(%s)\n", ppc_reg(8), 24+extra_stack_storage, ppc_reg(1)); fprintf( outfile, "\tstw %s, %d(%s)\n", ppc_reg(9), 28+extra_stack_storage, ppc_reg(1)); fprintf( outfile, "\tstw %s, %d(%s)\n", ppc_reg(10),32+extra_stack_storage, ppc_reg(1)); fprintf( outfile, "\tstw %s, %d(%s)\n", ppc_reg(11),36+extra_stack_storage, ppc_reg(1)); fprintf( outfile, "\tstw %s, %d(%s)\n", ppc_reg(12),40+extra_stack_storage, ppc_reg(1)); /* r0 -> r3 (arg1) */ fprintf( outfile, "\tmr %s, %s\n", ppc_reg(3), ppc_reg(0)); /* save return address */ fprintf( outfile, "\tmflr %s\n", ppc_reg(0)); fprintf( outfile, "\tstw %s, %d(%s)\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", asm_name("__wine_spec_delay_load") ); /* Load return value from call into ctr register */ fprintf( outfile, "\tmtctr %s\n", ppc_reg(3)); /* restore all saved registers and drop stackframe. */ fprintf( outfile, "\tlwz %s, %d(%s)\n", ppc_reg(3), 4+extra_stack_storage, ppc_reg(1)); fprintf( outfile, "\tlwz %s, %d(%s)\n", ppc_reg(4), 8+extra_stack_storage, ppc_reg(1)); fprintf( outfile, "\tlwz %s, %d(%s)\n", ppc_reg(5), 12+extra_stack_storage, ppc_reg(1)); fprintf( outfile, "\tlwz %s, %d(%s)\n", ppc_reg(6), 16+extra_stack_storage, ppc_reg(1)); fprintf( outfile, "\tlwz %s, %d(%s)\n", ppc_reg(7), 20+extra_stack_storage, ppc_reg(1)); fprintf( outfile, "\tlwz %s, %d(%s)\n", ppc_reg(8), 24+extra_stack_storage, ppc_reg(1)); fprintf( outfile, "\tlwz %s, %d(%s)\n", ppc_reg(9), 28+extra_stack_storage, ppc_reg(1)); fprintf( outfile, "\tlwz %s, %d(%s)\n", ppc_reg(10),32+extra_stack_storage, ppc_reg(1)); fprintf( outfile, "\tlwz %s, %d(%s)\n", ppc_reg(11),36+extra_stack_storage, ppc_reg(1)); fprintf( outfile, "\tlwz %s, %d(%s)\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", ppc_reg(0), 44+extra_stack_storage, ppc_reg(1)); fprintf( outfile, "\tmtlr %s\n", ppc_reg(0)); fprintf( outfile, "\taddi %s, %s, %d\n", ppc_reg(1), ppc_reg(1), 48+extra_stack_storage); /* branch to ctr register. */ fprintf( outfile, "\tbctr\n"); break; } output_function_size( outfile, "__wine_delay_load_asm" ); fprintf( outfile, "\n" ); for (i = idx = 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, ".L__wine_delay_imp_%d_%s:\n", i, name ); switch(target_cpu) { case CPU_x86: fprintf( outfile, "\tmovl $%d, %%eax\n", (idx << 16) | j ); fprintf( outfile, "\tjmp %s\n", asm_name("__wine_delay_load_asm") ); break; case CPU_x86_64: fprintf( outfile, "\tmovq $%d,%%r11\n", (idx << 16) | j ); fprintf( outfile, "\tjmp %s\n", asm_name("__wine_delay_load_asm") ); break; case CPU_SPARC: fprintf( outfile, "\tset %d, %%g1\n", (idx << 16) | j ); fprintf( outfile, "\tb,a %s\n", asm_name("__wine_delay_load_asm") ); break; case CPU_ALPHA: fprintf( outfile, "\tlda $0,%d($31)\n", j); fprintf( outfile, "\tldah $0,%d($0)\n", idx); fprintf( outfile, "\tjmp $31,%s\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", ppc_reg(2), idx); /* Lower part + r2 -> r0, Note we can't use r0 directly */ fprintf( outfile, "\taddi %s, %s, %d\n", ppc_reg(0), ppc_reg(2), j); fprintf( outfile, "\tb %s\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", ppc_reg(1), ppc_reg(1)); fprintf( outfile, "\tstw %s, 0(%s)\n", ppc_reg(13), ppc_reg(1)); /* Upper part in r13 */ fprintf( outfile, "\tlis %s, %d\n", ppc_reg(13), idx); /* Lower part + r13 -> r0, Note we can't use r0 directly */ fprintf( outfile, "\taddi %s, %s, %d\n", ppc_reg(0), ppc_reg(13), j); /* Restore r13 */ fprintf( outfile, "\tstw %s, 0(%s)\n", ppc_reg(13), ppc_reg(1)); fprintf( outfile, "\taddic %s, %s, 0x4\n", ppc_reg(1), ppc_reg(1)); fprintf( outfile, "\tb %s\n", asm_name("__wine_delay_load_asm") ); break; } break; } } idx++; } output_function_size( outfile, delayed_import_loaders ); fprintf( outfile, "\n\t.align %d\n", get_alignment(get_ptr_size()) ); fprintf( outfile, "%s:\n", asm_name(delayed_import_thunks)); for (i = pos = 0; i < nb_imports; i++) { if (!dll_imports[i]->delay) continue; for (j = 0; j < dll_imports[i]->nb_imports; j++, pos += get_ptr_size()) { ORDDEF *odp = dll_imports[i]->imports[j]; output_import_thunk( outfile, odp->name ? odp->name : odp->export_name, ".L__wine_delay_IAT", pos ); } } output_function_size( outfile, delayed_import_thunks ); } /* output import stubs for exported entry points that link to external symbols */ static void output_external_link_imports( FILE *outfile, DLLSPEC *spec ) { unsigned int i, pos; if (!ext_link_imports.count) return; /* nothing to do */ sort_names( &ext_link_imports ); /* get rid of duplicate names */ for (i = 1; i < ext_link_imports.count; i++) { if (!strcmp( ext_link_imports.names[i-1], ext_link_imports.names[i] )) remove_name( &ext_link_imports, i-- ); } fprintf( outfile, "\n/* external link thunks */\n\n" ); fprintf( outfile, "\t.data\n" ); fprintf( outfile, "\t.align %d\n", get_alignment(get_ptr_size()) ); fprintf( outfile, ".L__wine_spec_external_links:\n" ); for (i = 0; i < ext_link_imports.count; i++) fprintf( outfile, "\t%s %s\n", get_asm_ptr_keyword(), asm_name(ext_link_imports.names[i]) ); fprintf( outfile, "\n\t.text\n" ); fprintf( outfile, "\t.align %d\n", get_alignment(get_ptr_size()) ); fprintf( outfile, "%s:\n", asm_name("__wine_spec_external_link_thunks") ); for (i = pos = 0; i < ext_link_imports.count; i++) { char buffer[256]; sprintf( buffer, "__wine_spec_ext_link_%s", ext_link_imports.names[i] ); output_import_thunk( outfile, buffer, ".L__wine_spec_external_links", pos ); pos += get_ptr_size(); } output_function_size( outfile, "__wine_spec_external_link_thunks" ); } /******************************************************************* * output_stubs * * Output the functions for stub entry points */ void output_stubs( FILE *outfile, DLLSPEC *spec ) { const char *name, *exp_name; int i, pos; if (!has_stubs( spec )) return; fprintf( outfile, "\n/* stub functions */\n\n" ); fprintf( outfile, "\t.text\n" ); for (i = pos = 0; i < spec->nb_entry_points; i++) { ORDDEF *odp = &spec->entry_points[i]; if (odp->type != TYPE_STUB) continue; name = get_stub_name( odp, spec ); exp_name = odp->name ? odp->name : odp->export_name; fprintf( outfile, "\t.align %d\n", get_alignment(4) ); fprintf( outfile, "\t%s\n", func_declaration(name) ); fprintf( outfile, "%s:\n", asm_name(name) ); fprintf( outfile, "\tsubl $4,%%esp\n" ); if (UsePIC) { fprintf( outfile, "\tcall %s\n", asm_name("__wine_spec_get_pc_thunk_eax") ); fprintf( outfile, "1:" ); if (exp_name) { fprintf( outfile, "\tleal .L__wine_stub_strings+%d-1b(%%eax),%%ecx\n", pos ); fprintf( outfile, "\tpushl %%ecx\n" ); pos += strlen(exp_name) + 1; } else fprintf( outfile, "\tpushl $%d\n", odp->ordinal ); fprintf( outfile, "\tleal .L__wine_spec_file_name-1b(%%eax),%%ecx\n" ); fprintf( outfile, "\tpushl %%ecx\n" ); } else { if (exp_name) { fprintf( outfile, "\tpushl $.L__wine_stub_strings+%d\n", pos ); pos += strlen(exp_name) + 1; } else fprintf( outfile, "\tpushl $%d\n", odp->ordinal ); fprintf( outfile, "\tpushl $.L__wine_spec_file_name\n" ); } fprintf( outfile, "\tcall %s\n", asm_name("__wine_spec_unimplemented_stub") ); output_function_size( outfile, name ); } if (pos) { fprintf( outfile, "\t%s\n", get_asm_string_section() ); fprintf( outfile, ".L__wine_stub_strings:\n" ); for (i = 0; i < spec->nb_entry_points; i++) { ORDDEF *odp = &spec->entry_points[i]; if (odp->type != TYPE_STUB) continue; exp_name = odp->name ? odp->name : odp->export_name; if (exp_name) fprintf( outfile, "\t%s \"%s\"\n", get_asm_string_keyword(), exp_name ); } } } /* output the import and delayed import tables of a Win32 module */ void output_imports( FILE *outfile, DLLSPEC *spec ) { output_immediate_imports( outfile ); output_delayed_imports( outfile, spec ); output_immediate_import_thunks( outfile ); output_delayed_import_thunks( outfile, spec ); output_external_link_imports( outfile, spec ); if (nb_imports || ext_link_imports.count || has_stubs(spec)) output_get_pc_thunk( outfile ); }