Sweden-Number/tools/winebuild/import.c

1827 lines
64 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 "wine/port.h"
#include <assert.h>
#include <ctype.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include "wine/list.h"
#include "build.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 struct strarray stdc_functions = { stdc_names, ARRAY_SIZE(stdc_names), ARRAY_SIZE(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$ord$";
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 );
}
/* 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, const struct strarray *table )
{
char **res = NULL;
if (table->count) res = bsearch( &name, table->str, table->count, sizeof(*table->str), name_cmp );
return res ? *res : NULL;
}
/* sort a name table */
static inline void sort_names( struct strarray *table )
{
if (table->count) qsort( table->str, table->count, sizeof(*table->str), 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 = xstrdup(name);
func.ordinal = -1;
odp = &func;
if (table) res = bsearch( &odp, table, size, sizeof(*table), func_cmp );
free( func.name );
return res ? *res : NULL;
}
/* 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 = 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 )
{
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, NULL );
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, NULL );
}
/* retrieve an imported dll, adding one if necessary */
struct import *add_static_import_dll( const char *name )
{
struct import *import;
char *dll_name = get_dll_name( name, NULL );
if ((import = find_import_dll( dll_name ))) return import;
import = xmalloc( sizeof(*import) );
memset( import, 0, sizeof(*import) );
import->dll_name = dll_name;
import->full_name = xstrdup( dll_name );
import->c_name = make_c_identifier( dll_name );
if (is_delayed_import( dll_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 *p, *dll_name = xstrdup( name );
int ordinal = 0;
struct import *import;
if (!(p = strchr( dll_name, '$' ))) return;
*p++ = 0;
while (*p >= '0' && *p <= '9') ordinal = 10 * ordinal + *p++ - '0';
if (*p != '$') return;
p++;
import = add_static_import_dll( dll_name );
if (is_ordinal)
add_import_func( import, NULL, xstrdup( p ), ordinal, 0 );
else
add_import_func( import, xstrdup( p ), NULL, ordinal, 0 );
}
/* check if the spec file exports any stubs */
static int has_stubs( const DLLSPEC *spec )
{
int i;
if (unix_lib) return 0;
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 (has_stubs( spec )) add_extra_ld_symbol( "__wine_spec_unimplemented_stub" );
if (delayed_imports.count) 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->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;
if (unix_lib) return;
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;
if (unix_lib) return;
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 (odp->flags & FLAG_SYSCALL) 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, NULL );
}
else error( "%s:%d: function '%s' not defined\n",
spec->src_name, odp->lineno, odp->link_name );
break;
default:
if (!strcmp( odp->link_name, "__wine_syscall_dispatcher" )) break;
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;
if (unix_lib) return NULL;
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;
if (odp->flags & FLAG_SYSCALL) 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]) );
fclose( output_file );
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 )
{
char *ld_tmp_file, *undef_file;
struct strarray args = get_ld_command();
undef_file = create_undef_symbols_file( spec );
ld_tmp_file = get_temp_file_name( output_file_name, ".o" );
strarray_add( &args, "-r", "-o", ld_tmp_file, undef_file, NULL );
strarray_addv( &args, argv );
spawn( args );
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;
const char *prog = get_nm_command();
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 );
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 ), NULL );
}
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_x86 );
output( "\n\t.text\n" );
output( "\t.align %d\n", get_alignment(4) );
output( "\t%s\n", func_declaration("__wine_spec_get_pc_thunk_eax") );
output( "%s:\n", asm_name("__wine_spec_get_pc_thunk_eax") );
output_cfi( ".cfi_startproc" );
output( "\tmovl (%%esp),%%eax\n" );
output( "\tret\n" );
output_cfi( ".cfi_endproc" );
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( "\n\t.align %d\n", get_alignment(4) );
output( "\t%s\n", func_declaration(name) );
output( "%s\n", asm_globl(name) );
output_cfi( ".cfi_startproc" );
switch(target_cpu)
{
case CPU_x86:
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:
output( "\tldr IP,1f\n");
output( "\tldr PC,[PC,IP]\n" );
output( "1:\t.long %s+%u-(1b+4)\n", table, pos );
break;
case CPU_ARM64:
output( "\tadrp x9, %s\n", table );
output( "\tadd x9, x9, #:lo12:%s\n", table );
if (pos & 0xf000) output( "\tadd x9, x9, #%u\n", pos & 0xf000 );
if (pos & 0x0f00) output( "\tadd x9, x9, #%u\n", pos & 0x0f00 );
if (pos & 0x00f0) output( "\tadd x9, x9, #%u\n", pos & 0x00f0 );
if (pos & 0x000f) output( "\tadd x9, x9, #%u\n", pos & 0x000f );
output( "\tldur x9, [x9, #0]\n" );
output( "\tbr x9\n" );
break;
case CPU_POWERPC:
output( "\tmr %s, %s\n", ppc_reg(0), ppc_reg(31) );
if (target_platform == PLATFORM_APPLE)
{
output( "\tlis %s, ha16(%s+%d+32768)\n", ppc_reg(31), table, pos );
output( "\tla %s, lo16(%s+%d)(%s)\n", ppc_reg(31), table, pos, ppc_reg(31) );
}
else
{
output( "\tlis %s, (%s+%d+32768)@h\n", ppc_reg(31), table, pos );
output( "\tla %s, (%s+%d)@l(%s)\n", ppc_reg(31), table, pos, ppc_reg(31) );
}
output( "\tlwz %s, 0(%s)\n", ppc_reg(31), ppc_reg(31) );
output( "\tmtctr %s\n", ppc_reg(31) );
output( "\tmr %s, %s\n", ppc_reg(31), ppc_reg(0) );
output( "\tbctr\n" );
break;
}
output_cfi( ".cfi_endproc" );
output_function_size( name );
}
/* check if we need an import directory */
int has_imports(void)
{
return !list_empty( &dll_imports );
}
/* 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.align %d\n", get_alignment(4) );
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.align %d\n", get_alignment(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 ));
}
if (func->name)
output( "\t%s .L__wine_spec_import_data_%s_%s-.L__wine_spec_rva_base\n",
get_asm_ptr_keyword(), import->c_name, func->name );
else
{
if (get_ptr_size() == 8)
output( "\t.quad 0x800000000000%04x\n", func->ordinal );
else
output( "\t.long 0x8000%04x\n", func->ordinal );
}
}
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.align %d\n", get_alignment(2) );
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.align %d\n", get_alignment(8) );
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, mod;
struct import *import;
if (list_empty( &dll_delayed )) return;
output( "\n/* delayed imports */\n\n" );
output( "\t.data\n" );
output( "\t.align %d\n", get_alignment(get_ptr_size()) );
output( "%s\n", asm_globl("__wine_spec_delay_imports") );
/* list of dlls */
j = mod = 0;
LIST_FOR_EACH_ENTRY( import, &dll_delayed, struct import, entry )
{
output( "\t%s 0\n", get_asm_ptr_keyword() ); /* grAttrs */
output( "\t%s .L__wine_delay_name_%s\n", /* szName */
get_asm_ptr_keyword(), import->c_name );
output( "\t%s .L__wine_delay_modules+%d\n", /* phmod */
get_asm_ptr_keyword(), mod * get_ptr_size() );
output( "\t%s .L__wine_delay_IAT+%d\n", /* pIAT */
get_asm_ptr_keyword(), j * get_ptr_size() );
output( "\t%s .L__wine_delay_INT+%d\n", /* pINT */
get_asm_ptr_keyword(), j * get_ptr_size() );
output( "\t%s 0\n", get_asm_ptr_keyword() ); /* pBoundIAT */
output( "\t%s 0\n", get_asm_ptr_keyword() ); /* pUnloadIAT */
output( "\t%s 0\n", get_asm_ptr_keyword() ); /* dwTimeStamp */
j += import->nb_imports;
mod++;
}
output( "\t%s 0\n", get_asm_ptr_keyword() ); /* grAttrs */
output( "\t%s 0\n", get_asm_ptr_keyword() ); /* szName */
output( "\t%s 0\n", get_asm_ptr_keyword() ); /* phmod */
output( "\t%s 0\n", get_asm_ptr_keyword() ); /* pIAT */
output( "\t%s 0\n", get_asm_ptr_keyword() ); /* pINT */
output( "\t%s 0\n", get_asm_ptr_keyword() ); /* pBoundIAT */
output( "\t%s 0\n", get_asm_ptr_keyword() ); /* pUnloadIAT */
output( "\t%s 0\n", get_asm_ptr_keyword() ); /* dwTimeStamp */
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( "\t%s .L__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];
if (!func->name)
output( "\t%s %d\n", get_asm_ptr_keyword(), func->ordinal );
else
output( "\t%s .L__wine_delay_data_%s_%s\n",
get_asm_ptr_keyword(), import->c_name, func->name );
}
}
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( ".L__wine_delay_data_%s_%s:\n", import->c_name, func->name );
output( "\t%s \"%s\"\n", get_asm_string_keyword(), func->name );
}
}
output_function_size( "__wine_spec_delay_imports" );
}
/* output the delayed import thunks of a Win32 module */
static void output_delayed_import_thunks( const DLLSPEC *spec )
{
int idx, j, pos, extra_stack_storage = 0;
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.align %d\n", get_alignment(8) );
output( "%s:\n", asm_name(delayed_import_loaders));
output( "\t%s\n", func_declaration("__wine_delay_load_asm") );
output( "%s:\n", asm_name("__wine_delay_load_asm") );
output_cfi( ".cfi_startproc" );
switch(target_cpu)
{
case CPU_x86:
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( "\tcall %s\n", asm_name("__wine_spec_delay_load") );
output_cfi( ".cfi_adjust_cfa_offset -4" );
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( "\tmovq %%rax,%%rcx\n" );
output( "\tcall %s\n", asm_name("__wine_spec_delay_load") );
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 r0,IP\n" );
output( "\tldr IP,2f\n");
output( "\tadd IP,PC\n");
output( "\tblx IP\n");
output( "1:\tmov IP,r0\n");
output( "\tpop {r0-r3,FP,LR}\n" );
output( "\tbx IP\n");
output( "2:\t.long %s-1b\n", asm_name("__wine_spec_delay_load") );
break;
case CPU_ARM64:
output( "\tstp x29, x30, [sp,#-16]!\n" );
output( "\tmov x29, sp\n" );
output( "\tadrp x9, %s\n", asm_name("__wine_spec_delay_load") );
output( "\tadd x9, x9, #:lo12:%s\n", asm_name("__wine_spec_delay_load") );
output( "\tblr x9\n" );
output( "\tmov x9, x0\n" );
output( "\tldp x29, x30, [sp],#16\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],#80\n" );
output( "\tbr x9\n" ); /* or "ret x9" */
break;
case CPU_POWERPC:
if (target_platform == PLATFORM_APPLE) extra_stack_storage = 56;
/* Save all callee saved registers into a stackframe. */
output( "\tstwu %s, -%d(%s)\n",ppc_reg(1), 48+extra_stack_storage, ppc_reg(1));
output( "\tstw %s, %d(%s)\n", ppc_reg(3), 4+extra_stack_storage, ppc_reg(1));
output( "\tstw %s, %d(%s)\n", ppc_reg(4), 8+extra_stack_storage, ppc_reg(1));
output( "\tstw %s, %d(%s)\n", ppc_reg(5), 12+extra_stack_storage, ppc_reg(1));
output( "\tstw %s, %d(%s)\n", ppc_reg(6), 16+extra_stack_storage, ppc_reg(1));
output( "\tstw %s, %d(%s)\n", ppc_reg(7), 20+extra_stack_storage, ppc_reg(1));
output( "\tstw %s, %d(%s)\n", ppc_reg(8), 24+extra_stack_storage, ppc_reg(1));
output( "\tstw %s, %d(%s)\n", ppc_reg(9), 28+extra_stack_storage, ppc_reg(1));
output( "\tstw %s, %d(%s)\n", ppc_reg(10),32+extra_stack_storage, ppc_reg(1));
output( "\tstw %s, %d(%s)\n", ppc_reg(11),36+extra_stack_storage, ppc_reg(1));
output( "\tstw %s, %d(%s)\n", ppc_reg(12),40+extra_stack_storage, ppc_reg(1));
/* r0 -> r3 (arg1) */
output( "\tmr %s, %s\n", ppc_reg(3), ppc_reg(0));
/* save return address */
output( "\tmflr %s\n", ppc_reg(0));
output( "\tstw %s, %d(%s)\n", ppc_reg(0), 44+extra_stack_storage, ppc_reg(1));
/* Call the __wine_delay_load function, arg1 is arg1. */
output( "\tbl %s\n", asm_name("__wine_spec_delay_load") );
/* Load return value from call into ctr register */
output( "\tmtctr %s\n", ppc_reg(3));
/* restore all saved registers and drop stackframe. */
output( "\tlwz %s, %d(%s)\n", ppc_reg(3), 4+extra_stack_storage, ppc_reg(1));
output( "\tlwz %s, %d(%s)\n", ppc_reg(4), 8+extra_stack_storage, ppc_reg(1));
output( "\tlwz %s, %d(%s)\n", ppc_reg(5), 12+extra_stack_storage, ppc_reg(1));
output( "\tlwz %s, %d(%s)\n", ppc_reg(6), 16+extra_stack_storage, ppc_reg(1));
output( "\tlwz %s, %d(%s)\n", ppc_reg(7), 20+extra_stack_storage, ppc_reg(1));
output( "\tlwz %s, %d(%s)\n", ppc_reg(8), 24+extra_stack_storage, ppc_reg(1));
output( "\tlwz %s, %d(%s)\n", ppc_reg(9), 28+extra_stack_storage, ppc_reg(1));
output( "\tlwz %s, %d(%s)\n", ppc_reg(10),32+extra_stack_storage, ppc_reg(1));
output( "\tlwz %s, %d(%s)\n", ppc_reg(11),36+extra_stack_storage, ppc_reg(1));
output( "\tlwz %s, %d(%s)\n", ppc_reg(12),40+extra_stack_storage, ppc_reg(1));
/* Load return value from call into return register */
output( "\tlwz %s, %d(%s)\n", ppc_reg(0), 44+extra_stack_storage, ppc_reg(1));
output( "\tmtlr %s\n", ppc_reg(0));
output( "\taddi %s, %s, %d\n", ppc_reg(1), ppc_reg(1), 48+extra_stack_storage);
/* branch to ctr register. */
output( "\tbctr\n");
break;
}
output_cfi( ".cfi_endproc" );
output_function_size( "__wine_delay_load_asm" );
output( "\n" );
idx = 0;
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( ".L__wine_delay_imp_%s_%s:\n", import->c_name, name );
output_cfi( ".cfi_startproc" );
switch(target_cpu)
{
case CPU_x86:
output( "\tmovl $%d, %%eax\n", (idx << 16) | j );
output( "\tjmp %s\n", asm_name("__wine_delay_load_asm") );
break;
case CPU_x86_64:
output( "\tmovq $%d,%%rax\n", (idx << 16) | j );
output( "\tjmp %s\n", asm_name("__wine_delay_load_asm") );
break;
case CPU_ARM:
{
unsigned int mask, count = 0, val = (idx << 16) | j;
for (mask = 0xff; mask; mask <<= 8)
if (val & mask) output( "\t%s IP,#%u\n", count++ ? "add" : "mov", val & mask );
if (!count) output( "\tmov IP,#0\n" );
output( "\tb %s\n", asm_name("__wine_delay_load_asm") );
break;
}
case CPU_ARM64:
output( "\tstp x6, x7, [sp,#-80]!\n" );
output( "\tstp x4, x5, [sp,#48]\n" );
output( "\tstp x2, x3, [sp,#32]\n" );
output( "\tstp x0, x1, [sp,#16]\n" );
output( "\tmov x0, #%d\n", idx );
output( "\tmov x1, #16384\n" );
output( "\tmul x1, x0, x1\n" );
output( "\tmov x0, x1\n" );
output( "\tmov x1, #4\n" );
output( "\tmul x1, x0, x1\n" );
output( "\tmov x0, x1\n" );
output( "\tadd x0, x0, #%d\n", j );
output( "\tadr x9, %s\n", asm_name("__wine_delay_load_asm") );
output( "\tbr x9\n" );
break;
case CPU_POWERPC:
switch(target_platform)
{
case PLATFORM_APPLE:
/* On Darwin we can use r0 and r2 */
/* Upper part in r2 */
output( "\tlis %s, %d\n", ppc_reg(2), idx);
/* Lower part + r2 -> r0, Note we can't use r0 directly */
output( "\taddi %s, %s, %d\n", ppc_reg(0), ppc_reg(2), j);
output( "\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 */
output( "\taddi %s, %s, -0x4\n", ppc_reg(1), ppc_reg(1));
output( "\tstw %s, 0(%s)\n", ppc_reg(13), ppc_reg(1));
/* Upper part in r13 */
output( "\tlis %s, %d\n", ppc_reg(13), idx);
/* Lower part + r13 -> r0, Note we can't use r0 directly */
output( "\taddi %s, %s, %d\n", ppc_reg(0), ppc_reg(13), j);
/* Restore r13 */
output( "\tstw %s, 0(%s)\n", ppc_reg(13), ppc_reg(1));
output( "\taddic %s, %s, 0x4\n", ppc_reg(1), ppc_reg(1));
output( "\tb %s\n", asm_name("__wine_delay_load_asm") );
break;
}
break;
}
output_cfi( ".cfi_endproc" );
}
idx++;
}
output_function_size( delayed_import_loaders );
output( "\n\t.align %d\n", get_alignment(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.align %d\n", get_alignment(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.align %d\n", get_alignment(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" );
output( "\t.text\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( "\t.align %d\n", get_alignment(4) );
output( "\t%s\n", func_declaration(name) );
output( "%s:\n", asm_name(name) );
output_cfi( ".cfi_startproc" );
switch (target_cpu)
{
case CPU_x86:
/* 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") );
break;
case CPU_x86_64:
output( "\tsubq $0x28,%%rsp\n" );
output_cfi( ".cfi_adjust_cfa_offset 8" );
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") );
break;
case CPU_ARM:
output( "\tldr r0,2f\n");
output( "\tadd r0,PC\n");
output( "\tldr r1,2f+4\n");
output( "1:" );
if (exp_name) output( "\tadd r1,PC\n");
output( "\tbl %s\n", asm_name("__wine_spec_unimplemented_stub") );
output( "2:\t.long .L__wine_spec_file_name-1b\n" );
if (exp_name) output( "\t.long .L%s_string-2b\n", name );
else output( "\t.long %u\n", odp->ordinal );
break;
case CPU_ARM64:
output( "\tadrp x0, .L__wine_spec_file_name\n" );
output( "\tadd x0, x0, #:lo12:.L__wine_spec_file_name\n" );
if (exp_name)
{
output( "\tadrp x1, .L%s_string\n", name );
output( "\tadd x1, x1, #:lo12:.L%s_string\n", name );
}
else
output( "\tmov x1, %u\n", odp->ordinal );
output( "\tadrp x2, %s\n", asm_name("__wine_spec_unimplemented_stub") );
output( "\tadd x2, x2, #:lo12:%s\n", asm_name("__wine_spec_unimplemented_stub") );
output( "\tblr x2\n" );
break;
default:
assert(0);
}
output_cfi( ".cfi_endproc" );
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 );
}
}
}
static int cmp_link_name( const void *e1, const void *e2 )
{
const ORDDEF *odp1 = *(const ORDDEF * const *)e1;
const ORDDEF *odp2 = *(const ORDDEF * const *)e2;
return strcmp( odp1->link_name, odp2->link_name );
}
/* output the functions for system calls */
void output_syscalls( DLLSPEC *spec )
{
const unsigned int invalid_param = 0xc000000d; /* STATUS_INVALID_PARAMETER */
int i, count;
ORDDEF **syscalls = NULL;
for (i = count = 0; i < spec->nb_entry_points; i++)
{
ORDDEF *odp = &spec->entry_points[i];
if (!(odp->flags & FLAG_SYSCALL)) continue;
if (!syscalls) syscalls = xmalloc( (spec->nb_entry_points - i) * sizeof(*syscalls) );
syscalls[count++] = odp;
}
if (!count) return;
count = sort_func_list( syscalls, count, cmp_link_name );
output( "\n/* system calls */\n\n" );
output( "\t.text\n" );
if (unix_lib)
{
output( "\t.align %d\n", get_alignment(4) );
output( "\t%s\n", func_declaration("__wine_syscall_dispatcher") );
output( "%s\n", asm_globl("__wine_syscall_dispatcher") );
output_cfi( ".cfi_startproc" );
switch (target_cpu)
{
case CPU_x86:
output( "\tpushl %%ebp\n" );
output_cfi( ".cfi_adjust_cfa_offset 4\n" );
output_cfi( ".cfi_rel_offset %%ebp,0\n" );
output( "\tmovl %%esp,%%ebp\n" );
output_cfi( ".cfi_def_cfa_register %%ebp\n" );
output( "\tpushl %%esi\n" );
output_cfi( ".cfi_rel_offset %%esi,-4\n" );
output( "\tpushl %%edi\n" );
output_cfi( ".cfi_rel_offset %%edi,-8\n" );
output( "\tcmpl $%u,%%eax\n", count );
output( "\tjae 3f\n" );
if (UsePIC)
{
output( "\tmovl %%eax,%%edx\n" );
output( "\tcall %s\n", asm_name("__wine_spec_get_pc_thunk_eax") );
output( "1:\tmovzbl .Lsyscall_args-1b(%%eax,%%edx,1),%%ecx\n" );
needs_get_pc_thunk = 1;
}
else output( "\tmovzbl .Lsyscall_args(%%eax),%%ecx\n" );
output( "\tsubl %%ecx,%%esp\n" );
output( "\tshrl $2,%%ecx\n" );
output( "\tleal 12(%%ebp),%%esi\n" );
output( "\tandl $~15,%%esp\n" );
output( "\tmovl %%esp,%%edi\n" );
output( "\tcld\n" );
output( "\trep; movsl\n" );
if (UsePIC)
output( "\tcall *.Lsyscall_table-1b(%%eax,%%edx,4)\n" );
else
output( "\tcall *.Lsyscall_table(,%%eax,4)\n" );
output( "\tleal -8(%%ebp),%%esp\n" );
output( "2:\tpopl %%edi\n" );
output_cfi( ".cfi_same_value %%edi\n" );
output( "\tpopl %%esi\n" );
output_cfi( ".cfi_same_value %%esi\n" );
output( "\tpopl %%ebp\n" );
output_cfi( ".cfi_def_cfa %%esp,4\n" );
output_cfi( ".cfi_same_value %%ebp\n" );
output( "\tret\n" );
output( "3:\tmovl $0x%x,%%eax\n", invalid_param );
output( "\tjmp 2b\n" );
break;
case CPU_x86_64:
output( "\tpushq %%rbp\n" );
output_cfi( ".cfi_adjust_cfa_offset 8" );
output_cfi( ".cfi_rel_offset %%rbp,0" );
output( "\tmovq %%rsp,%%rbp\n" );
output_cfi( ".cfi_def_cfa_register %%rbp" );
output( "\tpushq %%rsi\n" );
output_cfi( ".cfi_rel_offset %%rsi,-8" );
output( "\tpushq %%rdi\n" );
output_cfi( ".cfi_rel_offset %%rdi,-16" );
/* Legends of Runeterra hooks the first system call return instruction, and
* depends on us returning to it. Adjust the return address accordingly. */
output( "\tsubq $0xb,0x8(%%rbp)\n" );
output( "\tcmpq $%u,%%rax\n", count );
output( "\tjae 4f\n" );
output( "\tleaq .Lsyscall_args(%%rip),%%rcx\n" );
output( "\tmovzbl (%%rcx,%%rax),%%ecx\n" );
output( "\tsubq $0x20,%%rcx\n" );
output( "\tja 1f\n" );
output( "\tandq $~15,%%rsp\n\t" );
output( "\tjmp 2f\n" );
output( "1:\tsubq %%rcx,%%rsp\n" );
output( "\tshrq $3,%%rcx\n" );
output( "\tleaq 0x38(%%rbp),%%rsi\n" );
output( "\tandq $~15,%%rsp\n\t" );
output( "\tmovq %%rsp,%%rdi\n" );
output( "\tcld\n" );
output( "\trep; movsq\n" );
output( "2:\tmovq %%r10,%%rcx\n" );
output( "\tsubq $0x20,%%rsp\n" );
output( "\tleaq .Lsyscall_table(%%rip),%%r10\n" );
output( "\tcallq *(%%r10,%%rax,8)\n" );
output( "3:\tleaq -0x10(%%rbp),%%rsp\n" );
output( "\tpopq %%rdi\n" );
output_cfi( ".cfi_same_value %%rdi" );
output( "\tpopq %%rsi\n" );
output_cfi( ".cfi_same_value %%rsi" );
output_cfi( ".cfi_def_cfa_register %%rsp" );
output( "\tpopq %%rbp\n" );
output_cfi( ".cfi_adjust_cfa_offset -8" );
output_cfi( ".cfi_same_value %%rbp" );
output( "\tret\n" );
output( "4:\tmovl $0x%x,%%eax\n", invalid_param );
output( "\tjmp 3b\n" );
break;
case CPU_ARM:
output( "\tldr r1, 4f\n" );
output( "\tcmp r0, r1\n" );
output( "\tbcs 2f\n" );
output( "\tldr r1, 3f\n");
output( "\tadd r1, pc\n");
output( "\tldr ip, [r1, r0, lsl #2]\n");
output( "1:\tpop {r0-r1}\n" );
output( "\tbx ip\n");
output( "2:\tpop {r0-r1}\n" );
output( "\tldr r0,5f\n" );
output( "bx lr\n" );
output( "3:\t.long .Lsyscall_table-1b\n" );
output( "4:\t.long %u\n", count );
output( "5:\t.long 0x%x\n", invalid_param );
break;
case CPU_ARM64:
output( "\tcmp x8, %u\n", count );
output( "\tbcs 1f\n" );
output( "\tadrp x16, .Lsyscall_table\n" );
output( "\tadd x16, x16, #:lo12:.Lsyscall_table\n" );
output( "\tldr x16, [x16, x8, lsl 3]\n" );
output( "\tbr x16\n" );
output( "1:\tmov x0, #0x%x\n", invalid_param & 0xffff0000 );
output( "\tmovk x0, #0x%x\n", invalid_param & 0x0000ffff );
output( "\tret\n" );
break;
default:
assert(0);
}
output_cfi( ".cfi_endproc" );
output_function_size( "__wine_syscall_dispatcher" );
output( "\t.data\n" );
output( "\t.align %d\n", get_alignment( get_ptr_size() ) );
output( ".Lsyscall_table:\n" );
for (i = 0; i < count; i++)
output( "\t%s %s\n", get_asm_ptr_keyword(), asm_name( get_link_name( syscalls[i] )));
output( ".Lsyscall_args:\n" );
for (i = 0; i < count; i++)
output( "\t.byte %u\n", get_args_size( syscalls[i] ));
return;
}
for (i = 0; i < count; i++)
{
ORDDEF *odp = syscalls[i];
const char *name = get_link_name(odp);
output( "\t.align %d\n", get_alignment(16) );
output( "\t%s\n", func_declaration(name) );
output( "%s\n", asm_globl(name) );
output_cfi( ".cfi_startproc" );
switch (target_cpu)
{
case CPU_x86:
if (UsePIC)
{
output( "\tcall %s\n", asm_name("__wine_spec_get_pc_thunk_eax") );
output( "1:\tmovl %s-1b(%%eax),%%edx\n", asm_name("__wine_syscall_dispatcher") );
output( "\tmovl $%u,%%eax\n", i );
needs_get_pc_thunk = 1;
}
else
{
output( "\tmovl $%u,%%eax\n", i );
output( "\tmovl $%s,%%edx\n", asm_name("__wine_syscall") );
}
output( "\tcall *%%edx\n" );
output( "\tret $%u\n", get_args_size( odp ));
break;
case CPU_x86_64:
/* Chromium depends on syscall thunks having the same form as on
* Windows. For 64-bit systems the only viable form we can emulate is
* having an int $0x2e fallback. Since actually using an interrupt is
* expensive, and since for some reason Chromium doesn't actually
* validate that instruction, we can just put a jmp there instead. */
output( "\t.byte 0x4c,0x8b,0xd1\n" ); /* movq %rcx,%r10 */
output( "\t.byte 0xb8\n" ); /* movl $i,%eax */
output( "\t.long %u\n", i );
output( "\t.byte 0xf6,0x04,0x25,0x08,0x03,0xfe,0x7f,0x01\n" ); /* testb $1,0x7ffe0308 */
output( "\t.byte 0x75,0x03\n" ); /* jne 1f */
output( "\t.byte 0x0f,0x05\n" ); /* syscall */
output( "\t.byte 0xc3\n" ); /* ret */
output( "\tjmp 1f\n" );
output( "\t.byte 0xc3\n" ); /* ret */
if (target_platform == PLATFORM_WINDOWS)
{
output( "1:\t.byte 0xff,0x14,0x25\n" ); /* 2: callq *(__wine_syscall_dispatcher) */
output( "\t.long __wine_syscall_dispatcher\n" );
}
else
{
output( "\tnop\n" );
output( "1:\tcallq *%s(%%rip)\n", asm_name("__wine_syscall_dispatcher") );
}
output( "\tret\n" );
break;
case CPU_ARM:
output( "\tpush {r0-r1}\n" );
output( "\tldr r0, 3f\n");
output( "\tldr r1, 2f\n");
output( "\tadd r1, pc\n");
output( "\tldr ip, [r1]\n");
output( "1:\tbx ip\n");
output( "2:\t.long %s-1b\n", asm_name("__wine_syscall_dispatcher") );
output( "3:\t.long %u\n", i );
break;
case CPU_ARM64:
output( "\tmov x8, #%u\n", i );
output( "\tadrp x16, %s\n", asm_name("__wine_syscall_dispatcher") );
output( "\tldr x16, [x16, #:lo12:%s]\n", asm_name("__wine_syscall_dispatcher") );
output( "\tbr x16\n");
break;
default:
assert(0);
}
output_cfi( ".cfi_endproc" );
output_function_size( name );
}
if (target_cpu == CPU_x86 && !UsePIC)
{
output( "\t.align %d\n", get_alignment(16) );
output( "\t%s\n", func_declaration("__wine_syscall") );
output( "%s:\n", asm_name("__wine_syscall") );
output( "\tjmp *(%s)\n", asm_name("__wine_syscall_dispatcher") );
output_function_size( "__wine_syscall" );
}
output( "\t.data\n" );
output( "\t.align %d\n", get_alignment( get_ptr_size() ) );
output( "%s\n", asm_globl("__wine_syscall_dispatcher") );
output( "\t%s 0\n", get_asm_ptr_keyword() );
}
/* output the import and delayed import tables of a Win32 module */
void output_imports( DLLSPEC *spec )
{
if (target_platform == PLATFORM_WINDOWS) 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, NULL );
}
/* 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 = get_temp_file_name( prefix, ".o" );
assemble_file( as_files.str[i], obj );
as_files.str[i] = obj;
}
}
/* build a library from the current asm files and any additional object files in argv */
static void build_library( const char *output_name, char **argv, int create )
{
struct strarray args = find_tool( "ar", NULL );
struct strarray ranlib = find_tool( "ranlib", NULL );
strarray_add( &args, create ? "rc" : "r", output_name, NULL );
strarray_addall( &args, as_files );
strarray_addv( &args, argv );
if (create) unlink( output_name );
spawn( args );
strarray_add( &ranlib, output_name, NULL );
spawn( ranlib );
}
/* create a Windows-style import library */
static void build_windows_import_lib( DLLSPEC *spec )
{
struct strarray args;
char *def_file;
const char *as_flags, *m_flag;
def_file = open_temp_output_file( ".def" );
output_def_file( spec, 1 );
fclose( output_file );
args = find_tool( "dlltool", NULL );
switch (target_cpu)
{
case CPU_x86:
m_flag = "i386";
as_flags = "--as-flags=--32";
break;
case CPU_x86_64:
m_flag = "i386:x86-64";
as_flags = "--as-flags=--64";
break;
default:
m_flag = NULL;
break;
}
strarray_add( &args, "-k", strendswith( output_file_name, ".delay.a" ) ? "-y" : "-l",
output_file_name, "-d", def_file, NULL );
if (m_flag)
strarray_add( &args, "-m", m_flag, as_flags, NULL );
spawn( args );
}
/* create a Unix-style import library */
static void build_unix_import_lib( DLLSPEC *spec )
{
static const char valid_chars[] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789._@";
int i, total;
const char *name, *prefix;
char *dll_name = xstrdup( spec->file_name );
if (strendswith( dll_name, ".dll" )) dll_name[strlen(dll_name) - 4] = 0;
if (strspn( dll_name, valid_chars ) < strlen( dll_name ))
fatal_error( "%s contains invalid characters\n", 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( "\t.text\n" );
output( "\n\t.align %d\n", get_alignment( get_ptr_size() ));
output( "\t%s\n", func_declaration( name ) );
output( "%s\n", asm_globl( name ) );
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 an import library for a Win32 module and additional object files */
void output_static_lib( DLLSPEC *spec, char **argv )
{
if (target_platform == PLATFORM_WINDOWS)
{
if (spec) build_windows_import_lib( spec );
if (argv[0] || !spec) build_library( output_file_name, argv, !spec );
}
else
{
if (spec) build_unix_import_lib( spec );
build_library( output_file_name, argv, 1 );
}
}