wine/tools/winebuild/import.c
2023-11-20 18:27:48 +01:00

1869 lines
63 KiB
C

/*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <assert.h>
#include <ctype.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include "build.h"
#include "wine/list.h"
/* standard C functions that are also exported from ntdll */
static const char *stdc_names[] =
{
"abs",
"atan",
"atoi",
"atol",
"bsearch",
"ceil",
"cos",
"fabs",
"floor",
"isalnum",
"isalpha",
"iscntrl",
"isdigit",
"isgraph",
"islower",
"isprint",
"ispunct",
"isspace",
"isupper",
"iswalpha",
"iswctype",
"iswdigit",
"iswlower",
"iswspace",
"iswxdigit",
"isxdigit",
"labs",
"log",
"mbstowcs",
"memchr",
"memcmp",
"memcpy",
"memmove",
"memset",
"pow",
"qsort",
"sin",
"sprintf",
"sqrt",
"sscanf",
"strcat",
"strchr",
"strcmp",
"strcpy",
"strcspn",
"strlen",
"strncat",
"strncmp",
"strncpy",
"strnlen",
"strpbrk",
"strrchr",
"strspn",
"strstr",
"strtol",
"strtoul",
"swprintf",
"tan",
"tolower",
"toupper",
"towlower",
"towupper",
"vsprintf",
"wcscat",
"wcschr",
"wcscmp",
"wcscpy",
"wcscspn",
"wcslen",
"wcsncat",
"wcsncmp",
"wcsncpy",
"wcspbrk",
"wcsrchr",
"wcsspn",
"wcsstr",
"wcstok",
"wcstol",
"wcstombs",
"wcstoul"
};
static const struct strarray stdc_functions = { ARRAY_SIZE(stdc_names), ARRAY_SIZE(stdc_names), stdc_names };
struct import_func
{
const char *name;
const char *export_name;
int ordinal;
int hint;
};
struct import
{
struct list entry; /* entry in global dll list */
char *dll_name; /* exported file name of the dll */
char *c_name; /* dll name as a C-compatible identifier */
char *full_name; /* full name of the input file */
dev_t dev; /* device/inode of the input file */
ino_t ino;
ORDDEF **exports; /* functions exported from this dll */
int nb_exports; /* number of exported functions */
struct import_func *imports; /* functions we want to import from this dll */
int nb_imports; /* number of imported functions */
int max_imports; /* size of imports array */
};
static struct strarray undef_symbols; /* list of undefined symbols */
static struct strarray extra_ld_symbols; /* list of extra symbols that ld should resolve */
static struct strarray delayed_imports; /* list of delayed import dlls */
static struct strarray ext_link_imports; /* list of external symbols to link to */
static struct list dll_imports = LIST_INIT( dll_imports );
static struct list dll_delayed = LIST_INIT( dll_delayed );
static struct strarray as_files;
static const char import_func_prefix[] = "__wine$func$";
static const char import_ord_prefix[] = "__wine$ord$";
/* compare function names; helper for resolve_imports */
static int name_cmp( const char **name, const char **entry )
{
return strcmp( *name, *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 );
}
/* remove a name from a name table */
static inline void remove_name( struct strarray *table, unsigned int idx )
{
assert( idx < table->count );
memmove( table->str + idx, table->str + idx + 1,
(table->count - idx - 1) * sizeof(*table->str) );
table->count--;
}
/* locate a name in a (sorted) list */
static inline const char *find_name( const char *name, struct strarray table )
{
return strarray_bsearch( &table, name, name_cmp );
}
/* sort a name table */
static inline void sort_names( struct strarray *table )
{
strarray_qsort( table, name_cmp );
}
/* locate an export in a (sorted) export list */
static inline ORDDEF *find_export( const char *name, ORDDEF **table, int size )
{
ORDDEF func, *odp, **res = NULL;
func.name = func.export_name = xstrdup(name);
odp = &func;
if (table) res = bsearch( &odp, table, size, sizeof(*table), func_cmp );
free( func.name );
return res ? *res : NULL;
}
static const char valid_chars[] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_.";
/* encode a dll name into a linker-compatible name */
static char *encode_dll_name( const char *name )
{
char *p, *ret;
int len = strlen(name);
if (strendswith( name, ".dll" )) len -= 4;
if (strspn( name, valid_chars ) >= len) return strmake( "%.*s", len, name );
ret = p = xmalloc( len * 4 + 1 );
for ( ; len > 0; len--, name++)
{
if (!strchr( valid_chars, *name )) p += sprintf( p, "$x%02x", *name );
else *p++ = *name;
}
*p = 0;
return ret;
}
/* decode a linker-compatible dll name */
static char *decode_dll_name( const char **name )
{
const char *src = *name;
char *p, *ret;
ret = p = xmalloc( strlen( src ) + 5 );
for ( ; *src; src++, p++)
{
if (*src != '$')
{
*p = *src;
}
else if (src[1] == 'x') /* hex escape */
{
int val = 0;
src += 2;
if (*src >= '0' && *src <= '9') val += *src - '0';
else if (*src >= 'A' && *src <= 'F') val += *src - 'A' + 10;
else if (*src >= 'a' && *src <= 'f') val += *src - 'a' + 10;
else return NULL;
val *= 16;
src++;
if (*src >= '0' && *src <= '9') val += *src - '0';
else if (*src >= 'A' && *src <= 'F') val += *src - 'A' + 10;
else if (*src >= 'a' && *src <= 'f') val += *src - 'a' + 10;
else return NULL;
*p = val;
}
else break; /* end of dll name */
}
*p = 0;
if (!strchr( ret, '.' )) strcpy( p, ".dll" );
*name = src;
return ret;
}
/* free an import structure */
static void free_imports( struct import *imp )
{
free( imp->exports );
free( imp->imports );
free( imp->dll_name );
free( imp->c_name );
free( imp->full_name );
free( imp );
}
/* check whether a given dll is imported in delayed mode */
static int is_delayed_import( const char *name )
{
unsigned int i;
for (i = 0; i < delayed_imports.count; i++)
{
if (!strcmp( delayed_imports.str[i], name )) return 1;
}
return 0;
}
/* find an imported dll from its name */
static struct import *find_import_dll( const char *name )
{
struct import *import;
LIST_FOR_EACH_ENTRY( import, &dll_imports, struct import, entry )
if (!strcasecmp( import->dll_name, name )) return import;
LIST_FOR_EACH_ENTRY( import, &dll_delayed, struct import, entry )
if (!strcasecmp( import->dll_name, name )) return import;
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 = strmake( "%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;
unsigned int i;
for (i = 0; i < lib_path.count; i++)
{
if ((fullname = try_library_path( lib_path.str[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 DLLSPEC *read_import_lib( struct import *imp )
{
FILE *f;
int i;
struct stat stat;
struct import *prev_imp;
DLLSPEC *spec = alloc_dll_spec();
f = open_input_file( NULL, imp->full_name );
fstat( fileno(f), &stat );
imp->dev = stat.st_dev;
imp->ino = stat.st_ino;
if (!parse_def_file( f, spec )) exit( 1 );
close_input_file( f );
/* check if we already imported that library from a different file */
if ((prev_imp = find_import_dll( 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 );
free_dll_spec( spec );
return NULL; /* the same file was already loaded, ignore this one */
}
if (spec->nb_entry_points)
{
imp->exports = xmalloc( spec->nb_entry_points * sizeof(*imp->exports) );
for (i = 0; i < spec->nb_entry_points; i++)
imp->exports[imp->nb_exports++] = &spec->entry_points[i];
qsort( imp->exports, imp->nb_exports, sizeof(*imp->exports), func_cmp );
}
return spec;
}
/* 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 = get_basename( filename );
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 )
{
DLLSPEC *spec;
char *dll_name = get_dll_name( name, filename );
struct import *imp = xmalloc( sizeof(*imp) );
memset( imp, 0, sizeof(*imp) );
if (filename) imp->full_name = xstrdup( filename );
else imp->full_name = find_library( name );
if (!(spec = read_import_lib( imp )))
{
free_imports( imp );
return;
}
imp->dll_name = spec->file_name ? spec->file_name : dll_name;
imp->c_name = make_c_identifier( imp->dll_name );
if (is_delayed_import( imp->dll_name ))
list_add_tail( &dll_delayed, &imp->entry );
else
list_add_tail( &dll_imports, &imp->entry );
}
/* 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 );
strarray_add( &delayed_imports, fullname );
if ((imp = find_import_dll( fullname )))
{
list_remove( &imp->entry );
list_add_tail( &dll_delayed, &imp->entry );
}
}
/* add a symbol to the list of extra symbols that ld must resolve */
void add_extra_ld_symbol( const char *name )
{
strarray_add( &extra_ld_symbols, name );
}
/* retrieve an imported dll, adding one if necessary */
static struct import *add_static_import_dll( const char *name )
{
struct import *import;
if ((import = find_import_dll( name ))) return import;
import = xmalloc( sizeof(*import) );
memset( import, 0, sizeof(*import) );
import->dll_name = xstrdup( name );
import->full_name = xstrdup( name );
import->c_name = make_c_identifier( name );
if (is_delayed_import( name ))
list_add_tail( &dll_delayed, &import->entry );
else
list_add_tail( &dll_imports, &import->entry );
return import;
}
/* add a function to the list of imports from a given dll */
static void add_import_func( struct import *imp, const char *name, const char *export_name,
int ordinal, int hint )
{
if (imp->nb_imports == imp->max_imports)
{
imp->max_imports *= 2;
if (imp->max_imports < 32) imp->max_imports = 32;
imp->imports = xrealloc( imp->imports, imp->max_imports * sizeof(*imp->imports) );
}
imp->imports[imp->nb_imports].name = name;
imp->imports[imp->nb_imports].export_name = export_name;
imp->imports[imp->nb_imports].ordinal = ordinal;
imp->imports[imp->nb_imports].hint = hint;
imp->nb_imports++;
}
/* add an import for an undefined function of the form __wine$func$ */
static void add_undef_import( const char *name, int is_ordinal )
{
char *dll_name = decode_dll_name( &name );
int ordinal = 0;
struct import *import;
if (!dll_name) return;
if (*name++ != '$') return;
while (*name >= '0' && *name <= '9') ordinal = 10 * ordinal + *name++ - '0';
if (*name++ != '$') return;
if (!use_msvcrt && find_name( name, stdc_functions )) return;
import = add_static_import_dll( dll_name );
if (is_ordinal)
add_import_func( import, NULL, xstrdup( name ), ordinal, 0 );
else
add_import_func( import, xstrdup( name ), NULL, ordinal, 0 );
free( dll_name );
}
/* 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 )
{
add_extra_ld_symbol( spec->init_func );
if (spec->type == SPEC_WIN16) add_extra_ld_symbol( "DllMain" );
if (has_stubs( spec )) add_extra_ld_symbol( "__wine_spec_unimplemented_stub" );
if (delayed_imports.count) add_extra_ld_symbol( "__delayLoadHelper2" );
}
/* 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->dll_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;
}
/* check if a given forward does exist in one of the imported dlls */
static void check_undefined_forwards( DLLSPEC *spec )
{
struct import *imp;
char *link_name, *api_name, *dll_name, *p;
int i;
for (i = 0; i < spec->nb_entry_points; i++)
{
ORDDEF *odp = &spec->entry_points[i];
if (!(odp->flags & FLAG_FORWARD)) continue;
link_name = xstrdup( odp->link_name );
p = strrchr( link_name, '.' );
*p = 0;
api_name = p + 1;
dll_name = get_dll_name( link_name, NULL );
if ((imp = find_import_dll( dll_name )))
{
if (!find_export( api_name, imp->exports, imp->nb_exports ))
warning( "%s:%d: forward '%s' not found in %s\n",
spec->src_name, odp->lineno, odp->link_name, imp->dll_name );
}
else warning( "%s:%d: forward '%s' not found in the imported dll list\n",
spec->src_name, odp->lineno, odp->link_name );
free( link_name );
free( dll_name );
}
}
/* 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 || odp->type == TYPE_ABS || odp->type == TYPE_VARIABLE) continue;
if (odp->flags & FLAG_FORWARD) continue;
if (find_name( odp->link_name, undef_symbols ))
{
switch(odp->type)
{
case TYPE_PASCAL:
case TYPE_STDCALL:
case TYPE_CDECL:
case TYPE_VARARGS:
if (link_ext_symbols)
{
odp->flags |= FLAG_EXT_LINK;
strarray_add( &ext_link_imports, odp->link_name );
}
else error( "%s:%d: function '%s' not defined\n",
spec->src_name, odp->lineno, odp->link_name );
break;
default:
error( "%s:%d: external symbol '%s' is not a function\n",
spec->src_name, odp->lineno, odp->link_name );
break;
}
}
}
}
/* 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;
int i;
unsigned int j;
as_file = open_temp_output_file( ".s" );
output( "\t.data\n" );
for (i = 0; i < spec->nb_entry_points; i++)
{
ORDDEF *odp = &spec->entry_points[i];
if (odp->type == TYPE_STUB || odp->type == TYPE_ABS || odp->type == TYPE_VARIABLE) continue;
if (odp->flags & FLAG_FORWARD) continue;
output( "\t%s %s\n", get_asm_ptr_keyword(), asm_name( get_link_name( odp )));
}
for (j = 0; j < extra_ld_symbols.count; j++)
output( "\t%s %s\n", get_asm_ptr_keyword(), asm_name(extra_ld_symbols.str[j]) );
output_gnu_stack_note();
fclose( output_file );
obj_file = make_temp_file( 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, struct strarray files )
{
char *ld_tmp_file, *undef_file;
struct strarray args = get_ld_command();
undef_file = create_undef_symbols_file( spec );
ld_tmp_file = make_temp_file( output_file_name, ".o" );
strarray_add( &args, "-r" );
strarray_add( &args, "-o" );
strarray_add( &args, ld_tmp_file );
if (undef_file) strarray_add( &args, undef_file );
strarray_addall( &args, files );
spawn( args );
return ld_tmp_file;
}
/* read in the list of undefined symbols */
void read_undef_symbols( DLLSPEC *spec, struct strarray files )
{
size_t prefix_len;
FILE *f;
const char *prog = get_nm_command();
char *cmd, buffer[1024], name_prefix[16];
int err;
const char *name;
if (!files.count) return;
add_extra_undef_symbols( spec );
strcpy( name_prefix, asm_name("") );
prefix_len = strlen( name_prefix );
name = ldcombine_files( spec, files );
cmd = strmake( "%s -u %s", prog, name );
if (verbose)
fprintf( stderr, "%s\n", cmd );
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;
if (!strncmp( p, import_func_prefix, strlen(import_func_prefix) ))
add_undef_import( p + strlen( import_func_prefix ), 0 );
else if (!strncmp( p, import_ord_prefix, strlen(import_ord_prefix) ))
add_undef_import( p + strlen( import_ord_prefix ), 1 );
else if (use_msvcrt || !find_name( p, stdc_functions ))
strarray_add( &undef_symbols, xstrdup( p ));
}
if ((err = pclose( f ))) warning( "%s failed with status %d\n", cmd, err );
free( cmd );
}
void resolve_dll_imports( DLLSPEC *spec, struct list *list )
{
unsigned int j;
struct import *imp, *next;
ORDDEF *odp;
LIST_FOR_EACH_ENTRY_SAFE( imp, next, list, struct import, entry )
{
for (j = 0; j < undef_symbols.count; j++)
{
odp = find_export( undef_symbols.str[j], imp->exports, imp->nb_exports );
if (odp)
{
if (odp->flags & FLAG_PRIVATE) continue;
if (odp->type != TYPE_STDCALL && odp->type != TYPE_CDECL)
warning( "winebuild: Data export '%s' cannot be imported from %s\n",
odp->link_name, imp->dll_name );
else
{
add_import_func( imp, (odp->flags & FLAG_NONAME) ? NULL : odp->name,
odp->export_name, odp->ordinal, odp->hint );
remove_name( &undef_symbols, j-- );
}
}
}
if (!imp->nb_imports)
{
/* the dll is not used, get rid of it */
if (check_unused( imp, spec ))
warning( "winebuild: %s imported but no symbols used\n", imp->dll_name );
list_remove( &imp->entry );
free_imports( imp );
}
}
}
/* resolve the imports for a Win32 module */
void resolve_imports( DLLSPEC *spec )
{
check_undefined_forwards( spec );
resolve_dll_imports( spec, &dll_imports );
resolve_dll_imports( spec, &dll_delayed );
sort_names( &undef_symbols );
check_undefined_exports( spec );
}
/* check if symbol is still undefined */
int is_undefined( const char *name )
{
return find_name( name, undef_symbols ) != NULL;
}
/* output the get_pc thunk if needed */
void output_get_pc_thunk(void)
{
assert( target.cpu == CPU_i386 );
output_function_header( "__wine_spec_get_pc_thunk_eax", 0 );
output( "\tmovl (%%esp),%%eax\n" );
output( "\tret\n" );
output_function_size( "__wine_spec_get_pc_thunk_eax" );
}
/* output a single import thunk */
static void output_import_thunk( const char *name, const char *table, int pos )
{
output_function_header( name, 1 );
switch (target.cpu)
{
case CPU_i386:
if (!UsePIC)
{
output( "\tjmp *(%s+%d)\n", table, pos );
}
else
{
output( "\tcall %s\n", asm_name("__wine_spec_get_pc_thunk_eax") );
output( "1:\tjmp *%s+%d-1b(%%eax)\n", table, pos );
needs_get_pc_thunk = 1;
}
break;
case CPU_x86_64:
output( "\tjmpq *%s+%d(%%rip)\n", table, pos );
break;
case CPU_ARM:
if (UsePIC)
{
output( "\tldr ip, 2f\n");
output( "1:\tadd ip, pc\n" );
output( "\tldr pc, [ip]\n");
output( "2:\t.long %s+%u-1b-%u\n", table, pos, thumb_mode ? 4 : 8 );
}
else
{
output( "\tldr ip, 1f\n");
output( "\tldr pc, [ip]\n");
output( "1:\t.long %s+%u\n", table, pos );
}
break;
case CPU_ARM64:
output( "\tadrp x16, %s\n", arm64_page( table ) );
output( "\tadd x16, x16, #%s\n", arm64_pageoff( table ) );
if (pos & ~0x7fff) output( "\tadd x16, x16, #%u\n", pos & ~0x7fff );
output( "\tldr x16, [x16, #%u]\n", pos & 0x7fff );
output( "\tbr x16\n" );
break;
case CPU_ARM64EC:
assert( 0 );
break;
}
output_function_size( name );
}
/* check if we need an import directory */
int has_imports(void)
{
return !list_empty( &dll_imports );
}
/* check if we need a delayed import directory */
int has_delay_imports(void)
{
return !list_empty( &dll_delayed );
}
/* output the import table of a Win32 module */
static void output_immediate_imports(void)
{
int i, j;
struct import *import;
if (list_empty( &dll_imports )) return; /* no immediate imports */
/* main import header */
output( "\n/* import table */\n" );
output( "\n\t.data\n" );
output( "\t.balign 4\n" );
output( ".L__wine_spec_imports:\n" );
/* list of dlls */
j = 0;
LIST_FOR_EACH_ENTRY( import, &dll_imports, struct import, entry )
{
output_rva( ".L__wine_spec_import_data_names + %d", j * get_ptr_size() ); /* OriginalFirstThunk */
output( "\t.long 0\n" ); /* TimeDateStamp */
output( "\t.long 0\n" ); /* ForwarderChain */
output_rva( ".L__wine_spec_import_name_%s", import->c_name ); /* Name */
output_rva( ".L__wine_spec_import_data_ptrs + %d", j * get_ptr_size() ); /* FirstThunk */
j += import->nb_imports + 1;
}
output( "\t.long 0\n" ); /* OriginalFirstThunk */
output( "\t.long 0\n" ); /* TimeDateStamp */
output( "\t.long 0\n" ); /* ForwarderChain */
output( "\t.long 0\n" ); /* Name */
output( "\t.long 0\n" ); /* FirstThunk */
output( "\n\t.balign %u\n", get_ptr_size() );
/* output the names twice, once for OriginalFirstThunk and once for FirstThunk */
for (i = 0; i < 2; i++)
{
output( ".L__wine_spec_import_data_%s:\n", i ? "ptrs" : "names" );
LIST_FOR_EACH_ENTRY( import, &dll_imports, struct import, entry )
{
for (j = 0; j < import->nb_imports; j++)
{
struct import_func *func = &import->imports[j];
if (i)
{
if (func->name) output( "__imp_%s:\n", asm_name( func->name ));
else if (func->export_name) output( "__imp_%s:\n", asm_name( func->export_name ));
}
output_thunk_rva( func->name ? -1 : func->ordinal,
".L__wine_spec_import_data_%s_%s", import->c_name, func->name );
}
output( "\t%s 0\n", get_asm_ptr_keyword() );
}
}
output( ".L__wine_spec_imports_end:\n" );
LIST_FOR_EACH_ENTRY( import, &dll_imports, struct import, entry )
{
for (j = 0; j < import->nb_imports; j++)
{
struct import_func *func = &import->imports[j];
if (!func->name) continue;
output( "\t.balign 2\n" );
output( ".L__wine_spec_import_data_%s_%s:\n", import->c_name, func->name );
output( "\t.short %d\n", func->hint );
output( "\t%s \"%s\"\n", get_asm_string_keyword(), func->name );
}
}
LIST_FOR_EACH_ENTRY( import, &dll_imports, struct import, entry )
{
output( ".L__wine_spec_import_name_%s:\n\t%s \"%s\"\n",
import->c_name, get_asm_string_keyword(), import->dll_name );
}
}
/* output the import thunks of a Win32 module */
static void output_immediate_import_thunks(void)
{
int j, pos;
struct import *import;
static const char import_thunks[] = "__wine_spec_import_thunks";
if (list_empty( &dll_imports )) return;
output( "\n/* immediate import thunks */\n\n" );
output( "\t.text\n" );
output( "\t.balign 8\n" );
output( "%s:\n", asm_name(import_thunks));
pos = 0;
LIST_FOR_EACH_ENTRY( import, &dll_imports, struct import, entry )
{
for (j = 0; j < import->nb_imports; j++, pos += get_ptr_size())
{
struct import_func *func = &import->imports[j];
output_import_thunk( func->name ? func->name : func->export_name,
".L__wine_spec_import_data_ptrs", pos );
}
pos += get_ptr_size();
}
output_function_size( import_thunks );
}
/* output the delayed import table of a Win32 module */
static void output_delayed_imports( const DLLSPEC *spec )
{
int j, iat_pos, int_pos, mod_pos;
struct import *import;
if (list_empty( &dll_delayed )) return;
output( "\n/* delayed imports */\n\n" );
output( "\t.data\n" );
output( "\t.balign %u\n", get_ptr_size() );
output( ".L__wine_spec_delay_imports:\n" );
/* list of dlls */
iat_pos = int_pos = mod_pos = 0;
LIST_FOR_EACH_ENTRY( import, &dll_delayed, struct import, entry )
{
output( "\t.long 1\n" ); /* Attributes */
output_rva( ".L__wine_delay_name_%s", import->c_name ); /* DllNameRVA */
output_rva( ".L__wine_delay_modules+%d", mod_pos ); /* ModuleHandleRVA */
output_rva( ".L__wine_delay_IAT+%d", iat_pos ); /* ImportAddressTableRVA */
output_rva( ".L__wine_delay_INT+%d", int_pos ); /* ImportNameTableRVA */
output( "\t.long 0\n" ); /* BoundImportAddressTableRVA */
output( "\t.long 0\n" ); /* UnloadInformationTableRVA */
output( "\t.long 0\n" ); /* TimeDateStamp */
iat_pos += import->nb_imports * get_ptr_size();
int_pos += (import->nb_imports + 1) * get_ptr_size();
mod_pos += get_ptr_size();
}
output( "\t.long 0,0,0,0,0,0,0,0\n" );
output( ".L__wine_spec_delay_imports_end:\n" );
output( "\n.L__wine_delay_IAT:\n" );
LIST_FOR_EACH_ENTRY( import, &dll_delayed, struct import, entry )
{
for (j = 0; j < import->nb_imports; j++)
{
struct import_func *func = &import->imports[j];
const char *name = func->name ? func->name : func->export_name;
output( "__imp_%s:\n", asm_name( name ));
output( "\t%s __wine_delay_imp_%s_%s\n",
get_asm_ptr_keyword(), import->c_name, name );
}
}
output( "\n.L__wine_delay_INT:\n" );
LIST_FOR_EACH_ENTRY( import, &dll_delayed, struct import, entry )
{
for (j = 0; j < import->nb_imports; j++)
{
struct import_func *func = &import->imports[j];
output_thunk_rva( func->name ? -1 : func->ordinal,
".L__wine_delay_data_%s_%s", import->c_name, func->name );
}
output( "\t%s 0\n", get_asm_ptr_keyword() );
}
output( "\n.L__wine_delay_modules:\n" );
LIST_FOR_EACH_ENTRY( import, &dll_delayed, struct import, entry )
{
output( "\t%s 0\n", get_asm_ptr_keyword() );
}
LIST_FOR_EACH_ENTRY( import, &dll_delayed, struct import, entry )
{
output( ".L__wine_delay_name_%s:\n", import->c_name );
output( "\t%s \"%s\"\n", get_asm_string_keyword(), import->dll_name );
}
LIST_FOR_EACH_ENTRY( import, &dll_delayed, struct import, entry )
{
for (j = 0; j < import->nb_imports; j++)
{
struct import_func *func = &import->imports[j];
if (!func->name) continue;
output( "\t.balign 2\n" );
output( ".L__wine_delay_data_%s_%s:\n", import->c_name, func->name );
output( "\t.short %d\n", func->hint );
output( "\t%s \"%s\"\n", get_asm_string_keyword(), func->name );
}
}
}
/* output the delayed import thunks of a Win32 module */
static void output_delayed_import_thunks( const DLLSPEC *spec )
{
int j, pos, iat_pos;
struct import *import;
static const char delayed_import_loaders[] = "__wine_spec_delayed_import_loaders";
static const char delayed_import_thunks[] = "__wine_spec_delayed_import_thunks";
if (list_empty( &dll_delayed )) return;
output( "\n/* delayed import thunks */\n\n" );
output( "\t.text\n" );
output( "\t.balign 8\n" );
output( "%s:\n", asm_name(delayed_import_loaders));
pos = iat_pos = 0;
LIST_FOR_EACH_ENTRY( import, &dll_delayed, struct import, entry )
{
char *module_func = strmake( "__wine_delay_load_asm_%s", import->c_name );
output_function_header( module_func, 0 );
output_cfi( ".cfi_startproc" );
switch (target.cpu)
{
case CPU_i386:
output( "\tpushl %%ecx\n" );
output_cfi( ".cfi_adjust_cfa_offset 4" );
output( "\tpushl %%edx\n" );
output_cfi( ".cfi_adjust_cfa_offset 4" );
output( "\tpushl %%eax\n" );
output_cfi( ".cfi_adjust_cfa_offset 4" );
if (UsePIC)
{
output( "\tcall %s\n", asm_name("__wine_spec_get_pc_thunk_eax") );
output( "1:\tleal .L__wine_spec_delay_imports+%d-1b(%%eax),%%eax\n", pos );
output( "\tpushl %%eax\n" );
output_cfi( ".cfi_adjust_cfa_offset 4" );
needs_get_pc_thunk = 1;
}
else
{
output( "\tpushl $.L__wine_spec_delay_imports+%d\n", pos );
output_cfi( ".cfi_adjust_cfa_offset 4" );
}
output( "\tcall %s\n", asm_name("__delayLoadHelper2") );
output_cfi( ".cfi_adjust_cfa_offset -8" );
output( "\tpopl %%edx\n" );
output_cfi( ".cfi_adjust_cfa_offset -4" );
output( "\tpopl %%ecx\n" );
output_cfi( ".cfi_adjust_cfa_offset -4" );
output( "\tjmp *%%eax\n" );
break;
case CPU_x86_64:
output( "\tsubq $0x98,%%rsp\n" );
output_cfi( ".cfi_adjust_cfa_offset 0x98" );
output( "\tmovq %%rdx,0x88(%%rsp)\n" );
output( "\tmovq %%rcx,0x80(%%rsp)\n" );
output( "\tmovq %%r8,0x78(%%rsp)\n" );
output( "\tmovq %%r9,0x70(%%rsp)\n" );
output( "\tmovq %%r10,0x68(%%rsp)\n" );
output( "\tmovq %%r11,0x60(%%rsp)\n" );
output( "\tmovups %%xmm0,0x50(%%rsp)\n" );
output( "\tmovups %%xmm1,0x40(%%rsp)\n" );
output( "\tmovups %%xmm2,0x30(%%rsp)\n" );
output( "\tmovups %%xmm3,0x20(%%rsp)\n" );
output( "\tleaq .L__wine_spec_delay_imports+%d(%%rip),%%rcx\n", pos );
output( "\tmovq %%rax,%%rdx\n" );
output( "\tcall %s\n", asm_name("__delayLoadHelper2") );
output( "\tmovups 0x20(%%rsp),%%xmm3\n" );
output( "\tmovups 0x30(%%rsp),%%xmm2\n" );
output( "\tmovups 0x40(%%rsp),%%xmm1\n" );
output( "\tmovups 0x50(%%rsp),%%xmm0\n" );
output( "\tmovq 0x60(%%rsp),%%r11\n" );
output( "\tmovq 0x68(%%rsp),%%r10\n" );
output( "\tmovq 0x70(%%rsp),%%r9\n" );
output( "\tmovq 0x78(%%rsp),%%r8\n" );
output( "\tmovq 0x80(%%rsp),%%rcx\n" );
output( "\tmovq 0x88(%%rsp),%%rdx\n" );
output( "\taddq $0x98,%%rsp\n" );
output_cfi( ".cfi_adjust_cfa_offset -0x98" );
output( "\tjmp *%%rax\n" );
break;
case CPU_ARM:
output( "\tpush {r0-r3,FP,LR}\n" );
output( "\tmov r1,IP\n" );
output( "\tldr r0, 1f\n");
if (UsePIC) output( "2:\tadd r0, pc\n" );
output( "\tbl %s\n", asm_name("__delayLoadHelper2") );
output( "\tmov IP,r0\n");
output( "\tpop {r0-r3,FP,LR}\n" );
output( "\tbx IP\n");
if (UsePIC)
output( "1:\t.long .L__wine_spec_delay_imports+%u-2b-%u\n", pos, thumb_mode ? 4 : 8 );
else
output( "1:\t.long .L__wine_spec_delay_imports+%u\n", pos );
break;
case CPU_ARM64:
output( "\tstp x29, x30, [sp,#-80]!\n" );
output( "\tmov x29, sp\n" );
output( "\tstp x0, x1, [sp,#16]\n" );
output( "\tstp x2, x3, [sp,#32]\n" );
output( "\tstp x4, x5, [sp,#48]\n" );
output( "\tstp x6, x7, [sp,#64]\n" );
output( "\tmov x1, x16\n" );
output( "\tadrp x0, %s\n", arm64_page(".L__wine_spec_delay_imports") );
output( "\tadd x0, x0, #%s\n", arm64_pageoff(".L__wine_spec_delay_imports") );
if (pos) output( "\tadd x0, x0, #%u\n", pos );
output( "\tbl %s\n", asm_name("__delayLoadHelper2") );
output( "\tmov x16, x0\n" );
output( "\tldp x0, x1, [sp,#16]\n" );
output( "\tldp x2, x3, [sp,#32]\n" );
output( "\tldp x4, x5, [sp,#48]\n" );
output( "\tldp x6, x7, [sp,#64]\n" );
output( "\tldp x29, x30, [sp],#80\n" );
output( "\tbr x16\n" );
break;
case CPU_ARM64EC:
assert( 0 );
break;
}
output_cfi( ".cfi_endproc" );
output_function_size( module_func );
output( "\n" );
for (j = 0; j < import->nb_imports; j++)
{
struct import_func *func = &import->imports[j];
const char *name = func->name ? func->name : func->export_name;
if (thumb_mode) output( "\t.thumb_func\n" );
output( "__wine_delay_imp_%s_%s:\n", import->c_name, name );
switch (target.cpu)
{
case CPU_i386:
if (UsePIC)
{
output( "\tcall %s\n", asm_name("__wine_spec_get_pc_thunk_eax") );
output( "1:\tleal .L__wine_delay_IAT+%d-1b(%%eax),%%eax\n", iat_pos );
needs_get_pc_thunk = 1;
}
else output( "\tmovl $.L__wine_delay_IAT+%d,%%eax\n", iat_pos );
output( "\tjmp %s\n", asm_name(module_func) );
break;
case CPU_x86_64:
output( "\tleaq .L__wine_delay_IAT+%d(%%rip),%%rax\n", iat_pos );
output( "\tjmp %s\n", asm_name(module_func) );
break;
case CPU_ARM:
if (UsePIC)
{
output( "\tldr ip, 2f\n");
output( "1:\tadd ip, pc\n" );
output( "\tb %s\n", asm_name(module_func) );
output( "2:\t.long .L__wine_delay_IAT+%u-1b-%u\n", iat_pos, thumb_mode ? 4 : 8 );
}
else
{
output( "\tldr ip, 1f\n");
output( "\tb %s\n", asm_name(module_func) );
output( "1:\t.long .L__wine_delay_IAT+%u\n", iat_pos );
}
break;
case CPU_ARM64:
output( "\tadrp x16, %s\n", arm64_page(".L__wine_delay_IAT") );
output( "\tadd x16, x16, #%s\n", arm64_pageoff(".L__wine_delay_IAT") );
if (iat_pos) output( "\tadd x16, x16, #%u\n", iat_pos );
output( "\tb %s\n", asm_name(module_func) );
break;
case CPU_ARM64EC:
assert( 0 );
break;
}
iat_pos += get_ptr_size();
}
pos += 8 * 4; /* IMAGE_DELAYLOAD_DESCRIPTOR is 8 DWORDs */
}
output_function_size( delayed_import_loaders );
output( "\n\t.balign %u\n", get_ptr_size() );
output( "%s:\n", asm_name(delayed_import_thunks));
pos = 0;
LIST_FOR_EACH_ENTRY( import, &dll_delayed, struct import, entry )
{
for (j = 0; j < import->nb_imports; j++, pos += get_ptr_size())
{
struct import_func *func = &import->imports[j];
output_import_thunk( func->name ? func->name : func->export_name,
".L__wine_delay_IAT", pos );
}
}
output_function_size( delayed_import_thunks );
}
/* output import stubs for exported entry points that link to external symbols */
static void output_external_link_imports( 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.str[i-1], ext_link_imports.str[i] ))
remove_name( &ext_link_imports, i-- );
}
output( "\n/* external link thunks */\n\n" );
output( "\t.data\n" );
output( "\t.balign %u\n", get_ptr_size() );
output( ".L__wine_spec_external_links:\n" );
for (i = 0; i < ext_link_imports.count; i++)
output( "\t%s %s\n", get_asm_ptr_keyword(), asm_name(ext_link_imports.str[i]) );
output( "\n\t.text\n" );
output( "\t.balign %u\n", get_ptr_size() );
output( "%s:\n", asm_name("__wine_spec_external_link_thunks") );
for (i = pos = 0; i < ext_link_imports.count; i++)
{
char *buffer = strmake( "__wine_spec_ext_link_%s", ext_link_imports.str[i] );
output_import_thunk( buffer, ".L__wine_spec_external_links", pos );
free( buffer );
pos += get_ptr_size();
}
output_function_size( "__wine_spec_external_link_thunks" );
}
/*******************************************************************
* output_stubs
*
* Output the functions for stub entry points
*/
void output_stubs( DLLSPEC *spec )
{
const char *name, *exp_name;
int i;
if (!has_stubs( spec )) return;
output( "\n/* stub functions */\n\n" );
for (i = 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;
output_function_header( name, 0 );
switch (target.cpu)
{
case CPU_i386:
output_cfi( ".cfi_startproc" );
/* flesh out the stub a bit to make safedisc happy */
output(" \tnop\n" );
output(" \tnop\n" );
output(" \tnop\n" );
output(" \tnop\n" );
output(" \tnop\n" );
output(" \tnop\n" );
output(" \tnop\n" );
output(" \tnop\n" );
output(" \tnop\n" );
output( "\tsubl $12,%%esp\n" );
output_cfi( ".cfi_adjust_cfa_offset 12" );
if (UsePIC)
{
output( "\tcall %s\n", asm_name("__wine_spec_get_pc_thunk_eax") );
output( "1:" );
needs_get_pc_thunk = 1;
if (exp_name)
{
output( "\tleal .L%s_string-1b(%%eax),%%ecx\n", name );
output( "\tmovl %%ecx,4(%%esp)\n" );
}
else
output( "\tmovl $%d,4(%%esp)\n", odp->ordinal );
output( "\tleal .L__wine_spec_file_name-1b(%%eax),%%ecx\n" );
output( "\tmovl %%ecx,(%%esp)\n" );
}
else
{
if (exp_name)
output( "\tmovl $.L%s_string,4(%%esp)\n", name );
else
output( "\tmovl $%d,4(%%esp)\n", odp->ordinal );
output( "\tmovl $.L__wine_spec_file_name,(%%esp)\n" );
}
output( "\tcall %s\n", asm_name("__wine_spec_unimplemented_stub") );
output_cfi( ".cfi_endproc" );
break;
case CPU_x86_64:
output_cfi( ".cfi_startproc" );
output_seh( ".seh_proc %s", asm_name(name) );
output( "\tsubq $0x28,%%rsp\n" );
output_cfi( ".cfi_adjust_cfa_offset 0x28" );
output_seh( ".seh_stackalloc 0x28" );
output_seh( ".seh_endprologue" );
output( "\tleaq .L__wine_spec_file_name(%%rip),%%rcx\n" );
if (exp_name)
output( "leaq .L%s_string(%%rip),%%rdx\n", name );
else
output( "\tmovq $%d,%%rdx\n", odp->ordinal );
output( "\tcall %s\n", asm_name("__wine_spec_unimplemented_stub") );
output_cfi( ".cfi_endproc" );
output_seh( ".seh_endproc" );
break;
case CPU_ARM:
if (UsePIC)
{
output( "\tldr r0,3f\n");
output( "1:\tadd r0,PC\n");
output( "\tldr r1,3f+4\n");
if (exp_name) output( "2:\tadd r1,PC\n");
output( "\tbl %s\n", asm_name("__wine_spec_unimplemented_stub") );
output( "3:\t.long .L__wine_spec_file_name-1b-%u\n", thumb_mode ? 4 : 8 );
if (exp_name) output( "\t.long .L%s_string-2b-%u\n", name, thumb_mode ? 4 : 8 );
else output( "\t.long %u\n", odp->ordinal );
}
else
{
output( "\tmovw r0,:lower16:.L__wine_spec_file_name\n");
output( "\tmovt r0,:upper16:.L__wine_spec_file_name\n");
if (exp_name)
{
output( "\tmovw r1,:lower16:.L%s_string\n", name );
output( "\tmovt r1,:upper16:.L%s_string\n", name );
}
else output( "\tmov r1,#%u\n", odp->ordinal );
output( "\tbl %s\n", asm_name("__wine_spec_unimplemented_stub") );
}
break;
case CPU_ARM64:
case CPU_ARM64EC:
output_seh( ".seh_proc %s", arm64_name(name) );
output_seh( ".seh_endprologue" );
output( "\tadrp x0, %s\n", arm64_page(".L__wine_spec_file_name") );
output( "\tadd x0, x0, #%s\n", arm64_pageoff(".L__wine_spec_file_name") );
if (exp_name)
{
char *sym = strmake( ".L%s_string", name );
output( "\tadrp x1, %s\n", arm64_page( sym ) );
output( "\tadd x1, x1, #%s\n", arm64_pageoff( sym ) );
free( sym );
}
else
output( "\tmov x1, %u\n", odp->ordinal );
output( "\tb %s\n", arm64_name("__wine_spec_unimplemented_stub") );
output_seh( ".seh_endproc" );
break;
}
output_function_size( name );
}
output( "\t%s\n", get_asm_string_section() );
output( ".L__wine_spec_file_name:\n" );
output( "\t%s \"%s\"\n", get_asm_string_keyword(), spec->file_name );
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)
{
name = get_stub_name( odp, spec );
output( ".L%s_string:\n", name );
output( "\t%s \"%s\"\n", get_asm_string_keyword(), exp_name );
}
}
}
/* output the import and delayed import tables of a Win32 module */
void output_imports( DLLSPEC *spec )
{
if (is_pe()) return;
output_immediate_imports();
output_delayed_imports( spec );
output_immediate_import_thunks();
output_delayed_import_thunks( spec );
output_external_link_imports( spec );
}
/* create a new asm temp file */
static void new_output_as_file(void)
{
char *name;
if (output_file) fclose( output_file );
name = open_temp_output_file( ".s" );
strarray_add( &as_files, name );
}
/* assemble all the asm files */
static void assemble_files( const char *prefix )
{
unsigned int i;
if (output_file) fclose( output_file );
output_file = NULL;
for (i = 0; i < as_files.count; i++)
{
char *obj = make_temp_file( prefix, ".o" );
assemble_file( as_files.str[i], obj );
as_files.str[i] = obj;
}
}
static const char *get_target_machine(void)
{
static const char *machine_names[] =
{
[CPU_i386] = "x86",
[CPU_x86_64] = "x64",
[CPU_ARM] = "arm",
[CPU_ARM64] = "arm64",
[CPU_ARM64EC] = "arm64ec",
};
return machine_names[target.cpu];
}
/* build a library from the current asm files and any additional object files in argv */
void output_static_lib( const char *output_name, struct strarray files, int create )
{
struct strarray args;
if (!create || target.platform != PLATFORM_WINDOWS)
{
args = find_tool( "ar", NULL );
strarray_add( &args, create ? "rc" : "r" );
strarray_add( &args, output_name );
}
else
{
args = find_link_tool();
strarray_add( &args, "/lib" );
strarray_add( &args, strmake( "-machine:%s", get_target_machine() ));
strarray_add( &args, strmake( "-out:%s", output_name ));
}
strarray_addall( &args, as_files );
strarray_addall( &args, files );
if (create) unlink( output_name );
spawn( args );
if (target.platform != PLATFORM_WINDOWS)
{
struct strarray ranlib = find_tool( "ranlib", NULL );
strarray_add( &ranlib, output_name );
spawn( ranlib );
}
}
/* create a Windows-style import library using dlltool */
static void build_dlltool_import_lib( const char *lib_name, DLLSPEC *spec, struct strarray files )
{
struct strarray args;
char *def_file;
def_file = open_temp_output_file( ".def" );
output_def_file( spec, 1 );
fclose( output_file );
args = find_tool( "dlltool", NULL );
strarray_add( &args, "-k" );
strarray_add( &args, strendswith( lib_name, ".delay.a" ) ? "-y" : "-l" );
strarray_add( &args, lib_name );
strarray_add( &args, "-d" );
strarray_add( &args, def_file );
switch (target.cpu)
{
case CPU_i386:
strarray_add( &args, "-m" );
strarray_add( &args, "i386" );
strarray_add( &args, "--as-flags=--32" );
break;
case CPU_x86_64:
strarray_add( &args, "-m" );
strarray_add( &args, "i386:x86-64" );
strarray_add( &args, "--as-flags=--64" );
break;
case CPU_ARM:
strarray_add( &args, "-m" );
strarray_add( &args, "arm" );
break;
case CPU_ARM64:
strarray_add( &args, "-m" );
strarray_add( &args, "arm64" );
break;
case CPU_ARM64EC:
strarray_add( &args, "-m" );
strarray_add( &args, "arm64ec" );
break;
default:
break;
}
spawn( args );
if (files.count) output_static_lib( output_file_name, files, 0 );
}
/* create a Windows-style import library */
static void build_windows_import_lib( const char *lib_name, DLLSPEC *spec, struct strarray files )
{
char *dll_name, *import_desc, *import_name, *delay_load;
struct strarray objs = empty_strarray;
int i, total, by_name;
int is_delay = strendswith( lib_name, ".delay.a" );
const char *name;
/* make sure assemble_files doesn't strip suffixes */
dll_name = encode_dll_name( spec->file_name );
for (i = 0; i < strlen( dll_name ); ++i) if (dll_name[i] == '.') dll_name[i] = '_';
import_desc = strmake( "__wine_import_%s_desc", dll_name );
import_name = strmake( "__wine_import_%s_name", dll_name );
delay_load = strmake( "__wine_delay_load_%s", dll_name );
new_output_as_file();
if (is_delay)
{
output_function_header( delay_load, 1 );
switch (target.cpu)
{
case CPU_i386:
output_cfi( ".cfi_startproc" );
output( "\tpushl %%ecx\n" );
output_cfi( ".cfi_adjust_cfa_offset 4" );
output( "\tpushl %%edx\n" );
output_cfi( ".cfi_adjust_cfa_offset 4" );
output( "\tpushl %%eax\n" );
output_cfi( ".cfi_adjust_cfa_offset 4" );
output( "\tpushl $%s\n", asm_name( import_desc ) );
output( "\tcalll ___delayLoadHelper2@8\n" );
output_cfi( ".cfi_adjust_cfa_offset -8" );
output( "\tpopl %%edx\n" );
output_cfi( ".cfi_adjust_cfa_offset -4" );
output( "\tpopl %%ecx\n" );
output_cfi( ".cfi_adjust_cfa_offset -4" );
output( "\tjmp *%%eax\n" );
output_cfi( ".cfi_endproc" );
break;
case CPU_x86_64:
output_seh( ".seh_proc %s", asm_name( delay_load ) );
output( "\tsubq $0x48, %%rsp\n" );
output_seh( ".seh_stackalloc 0x48" );
output_seh( ".seh_endprologue" );
output( "\tmovq %%rcx, 0x40(%%rsp)\n" );
output( "\tmovq %%rdx, 0x38(%%rsp)\n" );
output( "\tmovq %%r8, 0x30(%%rsp)\n" );
output( "\tmovq %%r9, 0x28(%%rsp)\n" );
output( "\tmovq %%rax, %%rdx\n" );
output( "\tleaq %s(%%rip), %%rcx\n", asm_name( import_desc ) );
output( "\tcall __delayLoadHelper2\n" );
output( "\tmovq 0x28(%%rsp), %%r9\n" );
output( "\tmovq 0x30(%%rsp), %%r8\n" );
output( "\tmovq 0x38(%%rsp), %%rdx\n" );
output( "\tmovq 0x40(%%rsp), %%rcx\n" );
output( "\taddq $0x48, %%rsp\n" );
output( "\tjmp *%%rax\n" );
output_seh( ".seh_endproc" );
break;
case CPU_ARM:
output( "\tpush {r0-r3, FP, LR}\n" );
output( "\tmov r1, IP\n" );
output( "\tldr r0, 1f\n" );
output( "\tldr r0, [r0]\n" );
output( "\tbl __delayLoadHelper2\n" );
output( "\tmov IP, r0\n" );
output( "\tpop {r0-r3, FP, LR}\n" );
output( "\tbx IP\n" );
output( "1:\t.long %s\n", asm_name( import_desc ) );
break;
case CPU_ARM64:
output_seh( ".seh_proc %s", asm_name( delay_load ) );
output( "\tstp x29, x30, [sp, #-80]!\n" );
output_seh( ".seh_save_fplr_x 80" );
output( "\tmov x29, sp\n" );
output_seh( ".seh_set_fp" );
output_seh( ".seh_endprologue" );
output( "\tstp x0, x1, [sp, #16]\n" );
output( "\tstp x2, x3, [sp, #32]\n" );
output( "\tstp x4, x5, [sp, #48]\n" );
output( "\tstp x6, x7, [sp, #64]\n" );
output( "\tmov x1, x16\n" );
output( "\tadrp x0, %s\n", asm_name( import_desc ) );
output( "\tadd x0, x0, #%s\n", asm_name( import_desc ) );
output( "\tbl __delayLoadHelper2\n" );
output( "\tmov x16, x0\n" );
output( "\tldp x0, x1, [sp, #16]\n" );
output( "\tldp x2, x3, [sp, #32]\n" );
output( "\tldp x4, x5, [sp, #48]\n" );
output( "\tldp x6, x7, [sp, #64]\n" );
output( "\tldp x29, x30, [sp], #80\n" );
output( "\tbr x16\n" );
output_seh( ".seh_endproc" );
break;
case CPU_ARM64EC:
assert( 0 );
break;
}
output_function_size( delay_load );
output_gnu_stack_note();
output( "\n\t.data\n" );
output( ".L__wine_delay_import_handle:\n" );
output( "\t%s 0\n", get_asm_ptr_keyword() );
output( "%s\n", asm_globl( import_desc ) );
output( "\t.long 1\n" ); /* DllAttributes */
output_rva( "%s", asm_name( import_name ) ); /* DllNameRVA */
output_rva( ".L__wine_delay_import_handle" ); /* ModuleHandleRVA */
output_rva( ".L__wine_import_addrs" ); /* ImportAddressTableRVA */
output_rva( ".L__wine_import_names" ); /* ImportNameTableRVA */
output( "\t.long 0\n" ); /* BoundImportAddressTableRVA */
output( "\t.long 0\n" ); /* UnloadInformationTableRVA */
output( "\t.long 0\n" ); /* TimeDateStamp */
output( "\n\t.section .idata$5\n" );
output( "\t%s 0\n", get_asm_ptr_keyword() ); /* FirstThunk tail */
output( ".L__wine_import_addrs:\n" );
output( "\n\t.section .idata$4\n" );
output( "\t%s 0\n", get_asm_ptr_keyword() ); /* OriginalFirstThunk tail */
output( ".L__wine_import_names:\n" );
/* required to avoid internal linker errors with some binutils versions */
output( "\n\t.section .idata$2\n" );
}
else
{
output( "\n\t.section .idata$2\n" );
output( "%s\n", asm_globl( import_desc ) );
output_rva( ".L__wine_import_names" ); /* OriginalFirstThunk */
output( "\t.long 0\n" ); /* TimeDateStamp */
output( "\t.long 0\n" ); /* ForwarderChain */
output_rva( "%s", asm_name( import_name ) ); /* Name */
output_rva( ".L__wine_import_addrs" ); /* FirstThunk */
output( "\n\t.section .idata$4\n" );
output( ".L__wine_import_names:\n" ); /* OriginalFirstThunk head */
output( "\n\t.section .idata$5\n" );
output( ".L__wine_import_addrs:\n" ); /* FirstThunk head */
}
/* _head suffix to keep this object sections first */
assemble_files( strmake( "%s_head", dll_name ) );
strarray_addall( &objs, as_files );
as_files = empty_strarray;
new_output_as_file();
output( "\n\t.section .idata$4\n" );
output( "\t%s 0\n", get_asm_ptr_keyword() ); /* OriginalFirstThunk tail */
output( "\n\t.section .idata$5\n" );
output( "\t%s 0\n", get_asm_ptr_keyword() ); /* FirstThunk tail */
output( "\n\t.section .idata$7\n" );
output( "%s\n", asm_globl( import_name ) );
output( "\t%s \"%s\"\n", get_asm_string_keyword(), spec->file_name );
/* _tail suffix to keep this object sections last */
assemble_files( strmake( "%s_tail", dll_name ) );
strarray_addall( &objs, as_files );
as_files = empty_strarray;
for (i = total = 0; i < spec->nb_entry_points; i++)
{
const ORDDEF *odp = &spec->entry_points[i];
const char *abi_name;
char *imp_name;
if (odp->name) name = odp->name;
else if (odp->export_name) name = odp->export_name;
else continue;
if (odp->flags & FLAG_PRIVATE) continue;
total++;
/* C++ mangled names cannot be imported */
if (strpbrk( name, "?@" )) continue;
switch (odp->type)
{
case TYPE_VARARGS:
case TYPE_CDECL:
case TYPE_STDCALL:
by_name = odp->name && !(odp->flags & FLAG_ORDINAL);
abi_name = get_abi_name( odp, name );
imp_name = strmake( "%s_imp_%s", target.cpu != CPU_i386 ? "_" : "",
asm_name( abi_name ) );
new_output_as_file();
output_function_header( abi_name, 1 );
switch (target.cpu)
{
case CPU_i386:
output( "\tjmp *%s\n", asm_name( imp_name ) );
if (is_delay)
{
output( "\n\t.section .text$1\n" );
output( ".L__wine_delay_import:\n" );
output( "\tmov $%s,%%eax\n", asm_name( imp_name ) );
output( "\tjmp %s\n", asm_name( delay_load ) );
}
break;
case CPU_x86_64:
output( "\tjmp *%s(%%rip)\n", asm_name( imp_name ) );
if (is_delay)
{
output( "\n\t.section .text$1\n" );
output( ".L__wine_delay_import:\n" );
output( "\tlea %s(%%rip),%%rax\n", asm_name( imp_name ) );
output( "\tjmp %s\n", asm_name( delay_load ) );
}
break;
case CPU_ARM:
output( "\tldr IP, 1f\n" );
output( "\tldr PC, [IP]\n" );
if (is_delay)
{
output( "\n\t.section .text$1\n" );
output( ".L__wine_delay_import:\n" );
output( "\tldr IP, 1f\n" );
output( "\tldr IP, [IP]\n" );
output( "\tb %s\n", asm_name( delay_load ) );
}
output( "1:\t.long %s\n", asm_name( imp_name ) );
break;
case CPU_ARM64:
output( "\tadrp x16, %s\n", arm64_page( asm_name( imp_name ) ) );
output( "\tadd x16, x16, #%s\n", arm64_pageoff( asm_name( imp_name ) ) );
output( "\tbr x16\n" );
if (is_delay)
{
output( "\n\t.section .text$1\n" );
output( ".L__wine_delay_import:\n" );
output( "\tadrp x16, %s\n", arm64_page( asm_name( imp_name ) ) );
output( "\tadd x16, x16, #%s\n", arm64_pageoff( asm_name( imp_name ) ) );
output( "\tb %s\n", asm_name( delay_load ) );
}
break;
case CPU_ARM64EC:
assert( 0 );
break;
}
output( "\n\t.section .idata$4\n" );
output_thunk_rva( by_name ? -1 : odp->ordinal, ".L__wine_import_name" );
output( "\n\t.section .idata$5\n" );
output( "%s\n", asm_globl( imp_name ) );
if (is_delay)
output( "\t%s .L__wine_delay_import\n", get_asm_ptr_keyword() );
else
output_thunk_rva( by_name ? -1 : odp->ordinal, ".L__wine_import_name" );
if (by_name)
{
output( "\n\t.section .idata$6\n" );
output( ".L__wine_import_name:\n" );
output( "\t.short %d\n", odp->hint );
output( "\t%s \"%s\"\n", get_asm_string_keyword(), name );
}
/* reference head object to always pull its sections */
output( "\n\t.section .idata$7\n" );
output_rva( "%s", asm_name( import_desc ) );
free( imp_name );
break;
default:
break;
}
}
/* _syms suffix to keep these objects sections in between _head and _tail */
assemble_files( strmake( "%s_syms", dll_name ) );
strarray_addall( &objs, as_files );
as_files = objs;
free( import_desc );
free( import_name );
free( delay_load );
free( dll_name );
output_static_lib( output_file_name, files, 1 );
}
/* create a Unix-style import library */
static void build_unix_import_lib( DLLSPEC *spec, struct strarray files )
{
int i, total;
const char *name, *prefix;
char *dll_name = encode_dll_name( spec->file_name );
/* entry points */
for (i = total = 0; i < spec->nb_entry_points; i++)
{
const ORDDEF *odp = &spec->entry_points[i];
if (odp->name) name = odp->name;
else if (odp->export_name) name = odp->export_name;
else continue;
if (odp->flags & FLAG_PRIVATE) continue;
total++;
/* C++ mangled names cannot be imported */
if (strpbrk( name, "?@" )) continue;
switch(odp->type)
{
case TYPE_VARARGS:
case TYPE_CDECL:
case TYPE_STDCALL:
prefix = (!odp->name || (odp->flags & FLAG_ORDINAL)) ? import_ord_prefix : import_func_prefix;
new_output_as_file();
output_function_header( name, 1 );
output( "\t%s %s%s$%u$%s\n", get_asm_ptr_keyword(),
asm_name( prefix ), dll_name, odp->ordinal, name );
output_function_size( name );
output_gnu_stack_note();
break;
default:
break;
}
}
if (!total) warning( "%s: Import library doesn't export anything\n", spec->file_name );
if (!as_files.count) /* create a dummy file to avoid empty import libraries */
{
new_output_as_file();
output( "\t.text\n" );
}
assemble_files( spec->file_name );
free( dll_name );
output_static_lib( output_file_name, files, 1 );
}
/* output an import library for a Win32 module and additional object files */
void output_import_lib( DLLSPEC *spec, struct strarray files )
{
if (!is_pe()) build_unix_import_lib( spec, files );
else if (use_dlltool) build_dlltool_import_lib( output_file_name, spec, files );
else build_windows_import_lib( output_file_name, spec, files );
}