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wine/tools/winebuild/main.c
Alexandre Julliard 39f6ab55a9 winebuild: Add support for generating data-only DLLs. 
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
2022-02-16 22:05:33 +01:00

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/*
* Main function
*
* Copyright 1993 Robert J. Amstadt
* Copyright 1995 Martin von Loewis
* Copyright 1995, 1996, 1997 Alexandre Julliard
* Copyright 1997 Eric Youngdale
* Copyright 1999 Ulrich Weigand
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <assert.h>
#include <stdio.h>
#include <signal.h>
#include <errno.h>
#include <string.h>
#include <stdarg.h>
#include <ctype.h>
#include "build.h"
int UsePIC = 0;
int nb_errors = 0;
int display_warnings = 0;
int kill_at = 0;
int verbose = 0;
int link_ext_symbols = 0;
int force_pointer_size = 0;
int unwind_tables = 0;
int use_msvcrt = 0;
int unix_lib = 0;
int safe_seh = 0;
int prefer_native = 0;
int data_only = 0;
struct target target = { 0 };
char *target_alias = NULL;
char *input_file_name = NULL;
char *spec_file_name = NULL;
FILE *output_file = NULL;
const char *output_file_name = NULL;
static int save_temps;
static int fake_module;
static DLLSPEC *main_spec;
static const struct strarray empty_strarray;
struct strarray lib_path = { 0 };
struct strarray tools_path = { 0 };
struct strarray as_command = { 0 };
struct strarray cc_command = { 0 };
struct strarray ld_command = { 0 };
struct strarray nm_command = { 0 };
char *cpu_option = NULL;
char *fpu_option = NULL;
char *arch_option = NULL;
#ifdef __SOFTFP__
const char *float_abi_option = "soft";
#else
const char *float_abi_option = "softfp";
#endif
#ifdef __thumb__
int thumb_mode = 1;
#else
int thumb_mode = 0;
#endif
static struct strarray res_files;
/* execution mode */
enum exec_mode_values
{
MODE_NONE,
MODE_DLL,
MODE_EXE,
MODE_DEF,
MODE_IMPLIB,
MODE_STATICLIB,
MODE_BUILTIN,
MODE_FIXUP_CTORS,
MODE_RESOURCES
};
static enum exec_mode_values exec_mode = MODE_NONE;
/* set the dll file name from the input file name */
static void set_dll_file_name( const char *name, DLLSPEC *spec )
{
char *p;
if (spec->file_name) return;
name = get_basename( name );
spec->file_name = xmalloc( strlen(name) + 5 );
strcpy( spec->file_name, name );
if ((p = strrchr( spec->file_name, '.' )))
{
if (!strcmp( p, ".spec" ) || !strcmp( p, ".def" )) *p = 0;
}
}
/* set the dll name from the file name */
static void init_dll_name( DLLSPEC *spec )
{
if (!spec->file_name && output_file_name)
{
char *p;
spec->file_name = xstrdup( output_file_name );
if ((p = strrchr( spec->file_name, '.' ))) *p = 0;
}
if (!spec->dll_name && spec->file_name) /* set default name from file name */
{
char *p;
spec->dll_name = xstrdup( spec->file_name );
if ((p = strrchr( spec->dll_name, '.' ))) *p = 0;
}
if (spec->dll_name) spec->c_name = make_c_identifier( spec->dll_name );
}
/* set the dll subsystem */
static void set_subsystem( const char *subsystem, DLLSPEC *spec )
{
char *major, *minor, *str = xstrdup( subsystem );
if ((major = strchr( str, ':' ))) *major++ = 0;
if (!strcmp( str, "native" )) spec->subsystem = IMAGE_SUBSYSTEM_NATIVE;
else if (!strcmp( str, "windows" )) spec->subsystem = IMAGE_SUBSYSTEM_WINDOWS_GUI;
else if (!strcmp( str, "console" )) spec->subsystem = IMAGE_SUBSYSTEM_WINDOWS_CUI;
else if (!strcmp( str, "wince" )) spec->subsystem = IMAGE_SUBSYSTEM_WINDOWS_CE_GUI;
else if (!strcmp( str, "win16" )) spec->type = SPEC_WIN16;
else fatal_error( "Invalid subsystem name '%s'\n", subsystem );
if (major)
{
if ((minor = strchr( major, '.' )))
{
*minor++ = 0;
spec->subsystem_minor = atoi( minor );
}
spec->subsystem_major = atoi( major );
}
free( str );
}
/* set the syscall table id */
static void set_syscall_table( const char *id, DLLSPEC *spec )
{
int val = atoi( id );
if (val < 0 || val > 3) fatal_error( "Invalid syscall table id '%s', must be 0-3\n", id );
spec->syscall_table = val;
}
/* set the target CPU and platform */
static void set_target( const char *name )
{
target_alias = xstrdup( name );
if (!parse_target( name, &target )) fatal_error( "Unrecognized target '%s'\n", name );
if (target.cpu == CPU_ARM && is_pe()) thumb_mode = 1;
}
/* cleanup on program exit */
static void cleanup(void)
{
if (output_file_name) unlink( output_file_name );
}
/* clean things up when aborting on a signal */
static void exit_on_signal( int sig )
{
exit(1); /* this will call atexit functions */
}
/*******************************************************************
* command-line option handling
*/
static const char usage_str[] =
"Usage: winebuild [OPTIONS] [FILES]\n\n"
"Options:\n"
" --as-cmd=AS Command to use for assembling (default: as)\n"
" -b, --target=TARGET Specify target CPU and platform for cross-compiling\n"
" -B PREFIX Look for build tools in the PREFIX directory\n"
" --cc-cmd=CC C compiler to use for assembling (default: fall back to --as-cmd)\n"
" --data-only Generate a data-only dll (i.e. without any executable code)\n"
" -d, --delay-lib=LIB Import the specified library in delayed mode\n"
" -D SYM Ignored for C flags compatibility\n"
" -e, --entry=FUNC Set the DLL entry point function (default: DllMain)\n"
" -E, --export=FILE Export the symbols defined in the .spec or .def file\n"
" --external-symbols Allow linking to external symbols\n"
" -f FLAGS Compiler flags (-fPIC and -fasynchronous-unwind-tables are supported)\n"
" -F, --filename=DLLFILE Set the DLL filename (default: from input file name)\n"
" --fake-module Create a fake binary module\n"
" -h, --help Display this help message\n"
" -H, --heap=SIZE Set the heap size for a Win16 dll\n"
" -I DIR Ignored for C flags compatibility\n"
" -k, --kill-at Kill stdcall decorations in generated .def files\n"
" -K, FLAGS Compiler flags (only -KPIC is supported)\n"
" --large-address-aware Support an address space larger than 2Gb\n"
" --ld-cmd=LD Command to use for linking (default: ld)\n"
" -l, --library=LIB Import the specified library\n"
" -L, --library-path=DIR Look for imports libraries in DIR\n"
" -m16, -m32, -m64 Force building 16-bit, 32-bit resp. 64-bit code\n"
" -M, --main-module=MODULE Set the name of the main module for a Win16 dll\n"
" --nm-cmd=NM Command to use to get undefined symbols (default: nm)\n"
" --nxcompat=y|n Set the NX compatibility flag (default: yes)\n"
" -N, --dll-name=DLLNAME Set the DLL name (default: from input file name)\n"
" -o, --output=NAME Set the output file name (default: stdout)\n"
" --prefer-native Set the flag to prefer loading native at run time\n"
" -r, --res=RSRC.RES Load resources from RSRC.RES\n"
" --safeseh Mark object files as SEH compatible\n"
" --save-temps Do not delete the generated intermediate files\n"
" --subsystem=SUBSYS Set the subsystem (one of native, windows, console, wince)\n"
" --syscall-table=ID Set the syscall table id (between 0 and 3)\n"
" -u, --undefined=SYMBOL Add an undefined reference to SYMBOL when linking\n"
" -v, --verbose Display the programs invoked\n"
" --version Print the version and exit\n"
" -w, --warnings Turn on warnings\n"
"\nMode options:\n"
" --dll Build a library from a .spec file and object files\n"
" --def Build a .def file from a .spec file\n"
" --exe Build an executable from object files\n"
" --implib Build an import library\n"
" --staticlib Build a static library\n"
" --resources Build a .o or .res file for the resource files\n\n"
" --builtin Mark a library as a Wine builtin\n"
" --fixup-ctors Fixup the constructors data after the module has been built\n"
"The mode options are mutually exclusive; you must specify one and only one.\n\n";
enum long_options_values
{
LONG_OPT_DLL = 1,
LONG_OPT_DEF,
LONG_OPT_EXE,
LONG_OPT_IMPLIB,
LONG_OPT_BUILTIN,
LONG_OPT_ASCMD,
LONG_OPT_CCCMD,
LONG_OPT_DATA_ONLY,
LONG_OPT_EXTERNAL_SYMS,
LONG_OPT_FAKE_MODULE,
LONG_OPT_FIXUP_CTORS,
LONG_OPT_LARGE_ADDRESS_AWARE,
LONG_OPT_LDCMD,
LONG_OPT_NMCMD,
LONG_OPT_NXCOMPAT,
LONG_OPT_PREFER_NATIVE,
LONG_OPT_RESOURCES,
LONG_OPT_SAFE_SEH,
LONG_OPT_SAVE_TEMPS,
LONG_OPT_STATICLIB,
LONG_OPT_SUBSYSTEM,
LONG_OPT_SYSCALL_TABLE,
LONG_OPT_VERSION
};
static const char short_options[] = "B:C:D:E:F:H:I:K:L:M:N:b:d:e:f:hkl:m:o:r:u:vw";
static const struct long_option long_options[] =
{
/* mode options */
{ "dll", 0, LONG_OPT_DLL },
{ "def", 0, LONG_OPT_DEF },
{ "exe", 0, LONG_OPT_EXE },
{ "implib", 0, LONG_OPT_IMPLIB },
{ "staticlib", 0, LONG_OPT_STATICLIB },
{ "builtin", 0, LONG_OPT_BUILTIN },
{ "resources", 0, LONG_OPT_RESOURCES },
{ "fixup-ctors", 0, LONG_OPT_FIXUP_CTORS },
/* other long options */
{ "as-cmd", 1, LONG_OPT_ASCMD },
{ "cc-cmd", 1, LONG_OPT_CCCMD },
{ "data-only", 0, LONG_OPT_DATA_ONLY },
{ "external-symbols", 0, LONG_OPT_EXTERNAL_SYMS },
{ "fake-module", 0, LONG_OPT_FAKE_MODULE },
{ "large-address-aware", 0, LONG_OPT_LARGE_ADDRESS_AWARE },
{ "ld-cmd", 1, LONG_OPT_LDCMD },
{ "nm-cmd", 1, LONG_OPT_NMCMD },
{ "nxcompat", 1, LONG_OPT_NXCOMPAT },
{ "prefer-native", 0, LONG_OPT_PREFER_NATIVE },
{ "safeseh", 0, LONG_OPT_SAFE_SEH },
{ "save-temps", 0, LONG_OPT_SAVE_TEMPS },
{ "subsystem", 1, LONG_OPT_SUBSYSTEM },
{ "syscall-table", 1, LONG_OPT_SYSCALL_TABLE },
{ "version", 0, LONG_OPT_VERSION },
/* aliases for short options */
{ "target", 1, 'b' },
{ "delay-lib", 1, 'd' },
{ "export", 1, 'E' },
{ "entry", 1, 'e' },
{ "filename", 1, 'F' },
{ "help", 0, 'h' },
{ "heap", 1, 'H' },
{ "kill-at", 0, 'k' },
{ "library", 1, 'l' },
{ "library-path", 1, 'L' },
{ "main-module", 1, 'M' },
{ "dll-name", 1, 'N' },
{ "output", 1, 'o' },
{ "res", 1, 'r' },
{ "undefined", 1, 'u' },
{ "verbose", 0, 'v' },
{ "warnings", 0, 'w' },
{ NULL }
};
static void usage( int exit_code )
{
fprintf( stderr, "%s", usage_str );
exit( exit_code );
}
static void set_exec_mode( enum exec_mode_values mode )
{
if (exec_mode != MODE_NONE) usage(1);
exec_mode = mode;
}
/* get the default entry point for a given spec file */
static const char *get_default_entry_point( const DLLSPEC *spec )
{
if (spec->characteristics & IMAGE_FILE_DLL) return "DllMain";
if (spec->subsystem == IMAGE_SUBSYSTEM_NATIVE) return "DriverEntry";
if (spec->type == SPEC_WIN16)
{
add_spec_extra_ld_symbol("WinMain16");
return "__wine_spec_exe16_entry";
}
else if (spec->unicode_app)
{
/* __wine_spec_exe_wentry always calls wmain */
add_spec_extra_ld_symbol("wmain");
if (spec->subsystem == IMAGE_SUBSYSTEM_WINDOWS_GUI)
add_spec_extra_ld_symbol("wWinMain");
return "__wine_spec_exe_wentry";
}
else
{
/* __wine_spec_exe_entry always calls main */
add_spec_extra_ld_symbol("main");
if (spec->subsystem == IMAGE_SUBSYSTEM_WINDOWS_GUI)
add_spec_extra_ld_symbol("WinMain");
return "__wine_spec_exe_entry";
}
}
static void option_callback( int optc, char *optarg )
{
char *p;
switch (optc)
{
case 'B':
strarray_add( &tools_path, xstrdup( optarg ));
break;
case 'D':
/* ignored */
break;
case 'E':
spec_file_name = xstrdup( optarg );
set_dll_file_name( optarg, main_spec );
break;
case 'F':
main_spec->file_name = xstrdup( optarg );
break;
case 'H':
if (!isdigit(optarg[0]))
fatal_error( "Expected number argument with -H option instead of '%s'\n", optarg );
main_spec->heap_size = atoi(optarg);
if (main_spec->heap_size > 65535)
fatal_error( "Invalid heap size %d, maximum is 65535\n", main_spec->heap_size );
break;
case 'I':
/* ignored */
break;
case 'K':
/* ignored, because cc generates correct code. */
break;
case 'L':
strarray_add( &lib_path, xstrdup( optarg ));
break;
case 'm':
if (!strcmp( optarg, "16" )) main_spec->type = SPEC_WIN16;
else if (!strcmp( optarg, "32" )) force_pointer_size = 4;
else if (!strcmp( optarg, "64" )) force_pointer_size = 8;
else if (!strcmp( optarg, "arm" )) thumb_mode = 0;
else if (!strcmp( optarg, "thumb" )) thumb_mode = 1;
else if (!strcmp( optarg, "no-cygwin" )) use_msvcrt = 1;
else if (!strcmp( optarg, "unix" )) unix_lib = 1;
else if (!strcmp( optarg, "unicode" )) main_spec->unicode_app = 1;
else if (!strncmp( optarg, "cpu=", 4 )) cpu_option = xstrdup( optarg + 4 );
else if (!strncmp( optarg, "fpu=", 4 )) fpu_option = xstrdup( optarg + 4 );
else if (!strncmp( optarg, "arch=", 5 )) arch_option = xstrdup( optarg + 5 );
else if (!strncmp( optarg, "float-abi=", 10 )) float_abi_option = xstrdup( optarg + 10 );
else fatal_error( "Unknown -m option '%s'\n", optarg );
break;
case 'M':
main_spec->main_module = xstrdup( optarg );
break;
case 'N':
main_spec->dll_name = xstrdup( optarg );
break;
case 'b':
set_target( optarg );
break;
case 'd':
add_delayed_import( optarg );
break;
case 'e':
main_spec->init_func = xstrdup( optarg );
if ((p = strchr( main_spec->init_func, '@' ))) *p = 0; /* kill stdcall decoration */
break;
case 'f':
if (!strcmp( optarg, "PIC") || !strcmp( optarg, "pic")) UsePIC = 1;
else if (!strcmp( optarg, "asynchronous-unwind-tables")) unwind_tables = 1;
else if (!strcmp( optarg, "no-asynchronous-unwind-tables")) unwind_tables = 0;
/* ignore all other flags */
break;
case 'h':
usage(0);
break;
case 'k':
kill_at = 1;
break;
case 'l':
add_import_dll( optarg, NULL );
break;
case 'o':
if (unlink( optarg ) == -1 && errno != ENOENT)
fatal_error( "Unable to create output file '%s'\n", optarg );
output_file_name = xstrdup( optarg );
break;
case 'r':
strarray_add( &res_files, xstrdup( optarg ));
break;
case 'u':
add_extra_ld_symbol( optarg );
break;
case 'v':
verbose++;
break;
case 'w':
display_warnings = 1;
break;
case LONG_OPT_DLL:
set_exec_mode( MODE_DLL );
break;
case LONG_OPT_DEF:
set_exec_mode( MODE_DEF );
break;
case LONG_OPT_EXE:
set_exec_mode( MODE_EXE );
if (!main_spec->subsystem) main_spec->subsystem = IMAGE_SUBSYSTEM_WINDOWS_GUI;
break;
case LONG_OPT_IMPLIB:
set_exec_mode( MODE_IMPLIB );
break;
case LONG_OPT_STATICLIB:
set_exec_mode( MODE_STATICLIB );
break;
case LONG_OPT_BUILTIN:
set_exec_mode( MODE_BUILTIN );
break;
case LONG_OPT_FIXUP_CTORS:
set_exec_mode( MODE_FIXUP_CTORS );
break;
case LONG_OPT_ASCMD:
as_command = strarray_fromstring( optarg, " " );
break;
case LONG_OPT_CCCMD:
cc_command = strarray_fromstring( optarg, " " );
break;
case LONG_OPT_DATA_ONLY:
data_only = 1;
break;
case LONG_OPT_FAKE_MODULE:
fake_module = 1;
break;
case LONG_OPT_EXTERNAL_SYMS:
link_ext_symbols = 1;
break;
case LONG_OPT_LARGE_ADDRESS_AWARE:
main_spec->characteristics |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
break;
case LONG_OPT_LDCMD:
ld_command = strarray_fromstring( optarg, " " );
break;
case LONG_OPT_NMCMD:
nm_command = strarray_fromstring( optarg, " " );
break;
case LONG_OPT_NXCOMPAT:
if (optarg[0] == 'n' || optarg[0] == 'N')
main_spec->dll_characteristics &= ~IMAGE_DLLCHARACTERISTICS_NX_COMPAT;
break;
case LONG_OPT_SAFE_SEH:
safe_seh = 1;
break;
case LONG_OPT_PREFER_NATIVE:
prefer_native = 1;
main_spec->dll_characteristics |= IMAGE_DLLCHARACTERISTICS_PREFER_NATIVE;
break;
case LONG_OPT_RESOURCES:
set_exec_mode( MODE_RESOURCES );
break;
case LONG_OPT_SAVE_TEMPS:
save_temps = 1;
break;
case LONG_OPT_SUBSYSTEM:
set_subsystem( optarg, main_spec );
break;
case LONG_OPT_SYSCALL_TABLE:
set_syscall_table( optarg, main_spec );
break;
case LONG_OPT_VERSION:
printf( "winebuild version " PACKAGE_VERSION "\n" );
exit(0);
case '?':
fprintf( stderr, "winebuild: %s\n\n", optarg );
usage(1);
break;
}
}
/* load all specified resource files */
static struct strarray load_resources( struct strarray files, DLLSPEC *spec )
{
struct strarray ret = empty_strarray;
int i;
switch (spec->type)
{
case SPEC_WIN16:
for (i = 0; i < res_files.count; i++) load_res16_file( res_files.str[i], spec );
return files;
case SPEC_WIN32:
for (i = 0; i < res_files.count; i++)
{
if (!load_res32_file( res_files.str[i], spec ))
fatal_error( "%s is not a valid Win32 resource file\n", res_files.str[i] );
}
/* load any resource file found in the remaining arguments */
for (i = 0; i < files.count; i++)
{
if (!load_res32_file( files.str[i], spec ))
strarray_add( &ret, files.str[i] ); /* not a resource file, keep it in the list */
}
break;
}
return ret;
}
/* add input files that look like import libs to the import list */
static struct strarray load_import_libs( struct strarray files )
{
struct strarray ret = empty_strarray;
int i;
for (i = 0; i < files.count; i++)
{
if (strendswith( files.str[i], ".def" ))
add_import_dll( NULL, files.str[i] );
else
strarray_add( &ret, files.str[i] ); /* not an import dll, keep it in the list */
}
return ret;
}
static int parse_input_file( DLLSPEC *spec )
{
FILE *input_file = open_input_file( NULL, spec_file_name );
int result;
spec->src_name = xstrdup( input_file_name );
if (strendswith( spec_file_name, ".def" ))
result = parse_def_file( input_file, spec );
else
result = parse_spec_file( input_file, spec );
close_input_file( input_file );
return result;
}
/*******************************************************************
* main
*/
int main(int argc, char **argv)
{
struct strarray files;
DLLSPEC *spec = main_spec = alloc_dll_spec();
#ifdef SIGHUP
signal( SIGHUP, exit_on_signal );
#endif
signal( SIGTERM, exit_on_signal );
signal( SIGINT, exit_on_signal );
target = init_argv0_target( argv[0] );
if (target.platform == PLATFORM_CYGWIN) target.platform = PLATFORM_MINGW;
files = parse_options( argc, argv, short_options, long_options, 0, option_callback );
atexit( cleanup ); /* make sure we remove the output file on exit */
if (!save_temps) atexit( cleanup_tmp_files );
if (spec->file_name && !strchr( spec->file_name, '.' ))
strcat( spec->file_name, exec_mode == MODE_EXE ? ".exe" : ".dll" );
init_dll_name( spec );
if (force_pointer_size) set_target_ptr_size( &target, force_pointer_size );
switch(exec_mode)
{
case MODE_DLL:
if (spec->subsystem != IMAGE_SUBSYSTEM_NATIVE)
spec->characteristics |= IMAGE_FILE_DLL;
/* fall through */
case MODE_EXE:
files = load_resources( files, spec );
if (spec_file_name && !parse_input_file( spec )) break;
if (!spec->init_func && !unix_lib) spec->init_func = xstrdup( get_default_entry_point( spec ));
if (fake_module)
{
output_fake_module( spec );
break;
}
if (data_only)
{
output_data_module( spec );
break;
}
if (!is_pe())
{
files = load_import_libs( files );
read_undef_symbols( spec, files );
resolve_imports( spec );
}
if (spec->type == SPEC_WIN16) output_spec16_file( spec );
else output_spec32_file( spec );
break;
case MODE_DEF:
if (files.count) fatal_error( "file argument '%s' not allowed in this mode\n", files.str[0] );
if (!spec_file_name) fatal_error( "missing .spec file\n" );
if (!parse_input_file( spec )) break;
open_output_file();
output_def_file( spec, 0 );
close_output_file();
break;
case MODE_IMPLIB:
if (!spec_file_name) fatal_error( "missing .spec file\n" );
if (!parse_input_file( spec )) break;
output_static_lib( spec, files );
break;
case MODE_STATICLIB:
output_static_lib( NULL, files );
break;
case MODE_BUILTIN:
if (!files.count) fatal_error( "missing file argument for --builtin option\n" );
make_builtin_files( files );
break;
case MODE_FIXUP_CTORS:
if (!files.count) fatal_error( "missing file argument for --fixup-ctors option\n" );
fixup_constructors( files );
break;
case MODE_RESOURCES:
files = load_resources( files, spec );
output_res_o_file( spec );
break;
default:
usage(1);
break;
}
if (nb_errors) exit(1);
output_file_name = NULL;
return 0;
}
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