2 * Small utility functions for winebuild
4 * Copyright 2000 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 #include "wine/port.h"
38 #define MAX_TMP_FILES 8
39 static const char *tmp_files[MAX_TMP_FILES];
40 static unsigned int nb_tmp_files;
53 { "x86_64", CPU_x86_64 },
54 { "sparc", CPU_SPARC },
55 { "alpha", CPU_ALPHA },
56 { "powerpc", CPU_POWERPC }
59 /* atexit handler to clean tmp files */
60 static void cleanup_tmp_files(void)
63 for (i = 0; i < MAX_TMP_FILES; i++) if (tmp_files[i]) unlink( tmp_files[i] );
67 void *xmalloc (size_t size)
71 res = malloc (size ? size : 1);
74 fprintf (stderr, "Virtual memory exhausted.\n");
80 void *xrealloc (void *ptr, size_t size)
82 void *res = realloc (ptr, size);
83 if (size && res == NULL)
85 fprintf (stderr, "Virtual memory exhausted.\n");
91 char *xstrdup( const char *str )
93 char *res = strdup( str );
96 fprintf (stderr, "Virtual memory exhausted.\n");
102 char *strupper(char *s)
105 for (p = s; *p; p++) *p = toupper(*p);
109 int strendswith(const char* str, const char* end)
113 return l >= m && strcmp(str + l - m, end) == 0;
116 void fatal_error( const char *msg, ... )
119 va_start( valist, msg );
122 fprintf( stderr, "%s:", input_file_name );
124 fprintf( stderr, "%d:", current_line );
125 fputc( ' ', stderr );
127 else fprintf( stderr, "winebuild: " );
128 vfprintf( stderr, msg, valist );
133 void fatal_perror( const char *msg, ... )
136 va_start( valist, msg );
139 fprintf( stderr, "%s:", input_file_name );
141 fprintf( stderr, "%d:", current_line );
142 fputc( ' ', stderr );
144 vfprintf( stderr, msg, valist );
150 void error( const char *msg, ... )
153 va_start( valist, msg );
156 fprintf( stderr, "%s:", input_file_name );
158 fprintf( stderr, "%d:", current_line );
159 fputc( ' ', stderr );
161 vfprintf( stderr, msg, valist );
166 void warning( const char *msg, ... )
170 if (!display_warnings) return;
171 va_start( valist, msg );
174 fprintf( stderr, "%s:", input_file_name );
176 fprintf( stderr, "%d:", current_line );
177 fputc( ' ', stderr );
179 fprintf( stderr, "warning: " );
180 vfprintf( stderr, msg, valist );
184 int output( const char *format, ... )
189 va_start( valist, format );
190 ret = vfprintf( output_file, format, valist );
192 if (ret < 0) fatal_perror( "Output error" );
196 const char *get_as_command(void)
202 as_command = xmalloc( strlen(target_alias) + sizeof("-as") );
203 strcpy( as_command, target_alias );
204 strcat( as_command, "-as" );
208 as_command = xstrdup( "as" );
214 const char *get_ld_command(void)
220 ld_command = xmalloc( strlen(target_alias) + sizeof("-ld") );
221 strcpy( ld_command, target_alias );
222 strcat( ld_command, "-ld" );
226 ld_command = xstrdup( "ld" );
232 const char *get_nm_command(void)
238 nm_command = xmalloc( strlen(target_alias) + sizeof("-nm") );
239 strcpy( nm_command, target_alias );
240 strcat( nm_command, "-nm" );
244 nm_command = xstrdup( "nm" );
250 /* get a name for a temp file, automatically cleaned up on exit */
251 char *get_temp_file_name( const char *prefix, const char *suffix )
257 assert( nb_tmp_files < MAX_TMP_FILES );
258 if (!nb_tmp_files && !save_temps) atexit( cleanup_tmp_files );
260 if (!prefix || !prefix[0]) prefix = "winebuild";
261 if (!suffix) suffix = "";
262 if (!(ext = strchr( prefix, '.' ))) ext = prefix + strlen(prefix);
263 name = xmalloc( sizeof("/tmp/") + (ext - prefix) + sizeof(".XXXXXX") + strlen(suffix) );
264 strcpy( name, "/tmp/" );
265 memcpy( name + 5, prefix, ext - prefix );
266 strcpy( name + 5 + (ext - prefix), ".XXXXXX" );
267 strcat( name, suffix );
269 /* first try without the /tmp/ prefix */
270 if ((fd = mkstemps( name + 5, strlen(suffix) )) != -1)
272 else if ((fd = mkstemps( name, strlen(suffix) )) == -1)
273 fatal_error( "could not generate a temp file\n" );
276 tmp_files[nb_tmp_files++] = name;
280 /* output a standard header for generated files */
281 void output_standard_file_header(void)
284 output( "/* File generated automatically from %s; do not edit! */\n", spec_file_name );
286 output( "/* File generated automatically; do not edit! */\n" );
287 output( "/* This file can be copied, modified and distributed without restriction. */\n\n" );
290 /* dump a byte stream into the assembly code */
291 void dump_bytes( const void *buffer, unsigned int size )
294 const unsigned char *ptr = buffer;
297 output( "\t.byte " );
298 for (i = 0; i < size - 1; i++, ptr++)
300 if ((i % 16) == 15) output( "0x%02x\n\t.byte ", *ptr );
301 else output( "0x%02x,", *ptr );
303 output( "0x%02x\n", *ptr );
307 /*******************************************************************
310 * Open a file in the given srcdir and set the input_file_name global variable.
312 FILE *open_input_file( const char *srcdir, const char *name )
315 FILE *file = fopen( name, "r" );
319 fullname = xmalloc( strlen(srcdir) + strlen(name) + 2 );
320 strcpy( fullname, srcdir );
321 strcat( fullname, "/" );
322 strcat( fullname, name );
323 file = fopen( fullname, "r" );
325 else fullname = xstrdup( name );
327 if (!file) fatal_error( "Cannot open file '%s'\n", fullname );
328 input_file_name = fullname;
334 /*******************************************************************
337 * Close the current input file (must have been opened with open_input_file).
339 void close_input_file( FILE *file )
342 free( input_file_name );
343 input_file_name = NULL;
348 /*******************************************************************
349 * remove_stdcall_decoration
351 * Remove a possible @xx suffix from a function name.
352 * Return the numerical value of the suffix, or -1 if none.
354 int remove_stdcall_decoration( char *name )
356 char *p, *end = strrchr( name, '@' );
357 if (!end || !end[1] || end == name) return -1;
358 /* make sure all the rest is digits */
359 for (p = end + 1; *p; p++) if (!isdigit(*p)) return -1;
361 return atoi( end + 1 );
365 /*******************************************************************
368 * Run a file through the assembler.
370 void assemble_file( const char *src_file, const char *obj_file )
372 const char *prog = get_as_command();
376 cmd = xmalloc( strlen(prog) + strlen(obj_file) + strlen(src_file) + 6 );
377 sprintf( cmd, "%s -o %s %s", prog, obj_file, src_file );
378 if (verbose) fprintf( stderr, "%s\n", cmd );
380 if (err) fatal_error( "%s failed with status %d\n", prog, err );
385 /*******************************************************************
388 * Create a new dll spec file descriptor
390 DLLSPEC *alloc_dll_spec(void)
394 spec = xmalloc( sizeof(*spec) );
395 spec->file_name = NULL;
396 spec->dll_name = NULL;
397 spec->init_func = NULL;
398 spec->type = SPEC_WIN32;
399 spec->base = MAX_ORDINALS;
401 spec->stack_size = 0;
403 spec->nb_entry_points = 0;
404 spec->alloc_entry_points = 0;
406 spec->nb_resources = 0;
407 spec->characteristics = IMAGE_FILE_EXECUTABLE_IMAGE;
408 if (get_ptr_size() > 4)
409 spec->characteristics |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
411 spec->characteristics |= IMAGE_FILE_32BIT_MACHINE;
412 spec->dll_characteristics = IMAGE_DLLCHARACTERISTICS_NX_COMPAT;
414 spec->subsystem_major = 4;
415 spec->subsystem_minor = 0;
416 spec->entry_points = NULL;
418 spec->ordinals = NULL;
419 spec->resources = NULL;
424 /*******************************************************************
427 * Free dll spec file descriptor
429 void free_dll_spec( DLLSPEC *spec )
433 for (i = 0; i < spec->nb_entry_points; i++)
435 ORDDEF *odp = &spec->entry_points[i];
437 free( odp->export_name );
438 free( odp->link_name );
440 free( spec->file_name );
441 free( spec->dll_name );
442 free( spec->init_func );
443 free( spec->entry_points );
445 free( spec->ordinals );
446 free( spec->resources );
451 /*******************************************************************
454 * Map a string to a valid C identifier.
456 const char *make_c_identifier( const char *str )
458 static char buffer[256];
461 for (p = buffer; *str && p < buffer+sizeof(buffer)-1; p++, str++)
463 if (isalnum(*str)) *p = *str;
471 /*******************************************************************
474 * Generate an internal name for a stub entry point.
476 const char *get_stub_name( const ORDDEF *odp, const DLLSPEC *spec )
478 static char buffer[256];
479 if (odp->name || odp->export_name)
482 sprintf( buffer, "__wine_stub_%s", odp->name ? odp->name : odp->export_name );
483 /* make sure name is a legal C identifier */
484 for (p = buffer; *p; p++) if (!isalnum(*p) && *p != '_') break;
485 if (!*p) return buffer;
487 sprintf( buffer, "__wine_stub_%s_%d", make_c_identifier(spec->file_name), odp->ordinal );
491 /* parse a cpu name and return the corresponding value */
492 enum target_cpu get_cpu_from_name( const char *name )
496 for (i = 0; i < sizeof(cpu_names)/sizeof(cpu_names[0]); i++)
497 if (!strcmp( cpu_names[i].name, name )) return cpu_names[i].cpu;
501 /*****************************************************************
502 * Function: get_alignment
505 * According to the info page for gas, the .align directive behaves
506 * differently on different systems. On some architectures, the
507 * argument of a .align directive is the number of bytes to pad to, so
508 * to align on an 8-byte boundary you'd say
510 * On other systems, the argument is "the number of low-order zero bits
511 * that the location counter must have after advancement." So to
512 * align on an 8-byte boundary you'd say
515 * The reason gas is written this way is that it's trying to mimick
516 * native assemblers for the various architectures it runs on. gas
517 * provides other directives that work consistently across
518 * architectures, but of course we want to work on all arches with or
519 * without gas. Hence this function.
523 * align -- the number of bytes to align to. Must be a power of 2.
525 unsigned int get_alignment(unsigned int align)
529 assert( !(align & (align - 1)) );
536 if (target_platform != PLATFORM_APPLE) return align;
541 while ((1u << n) != align) n++;
549 /* return the page size for the target CPU */
550 unsigned int get_page_size(void)
554 case CPU_x86: return 4096;
555 case CPU_x86_64: return 4096;
556 case CPU_POWERPC: return 4096;
557 case CPU_SPARC: return 8192;
558 case CPU_ALPHA: return 8192;
565 /* return the size of a pointer on the target CPU */
566 unsigned int get_ptr_size(void)
583 /* return the assembly name for a C symbol */
584 const char *asm_name( const char *sym )
586 static char buffer[256];
588 switch (target_platform)
591 case PLATFORM_WINDOWS:
593 strcpy( buffer + 1, sym );
600 /* return an assembly function declaration for a C function name */
601 const char *func_declaration( const char *func )
603 static char buffer[256];
605 switch (target_platform)
609 case PLATFORM_WINDOWS:
610 sprintf( buffer, ".def _%s; .scl 2; .type 32; .endef", func );
613 sprintf( buffer, ".type %s,@function", func );
619 /* output a size declaration for an assembly function */
620 void output_function_size( const char *name )
622 switch (target_platform)
625 case PLATFORM_WINDOWS:
628 output( "\t.size %s, .-%s\n", name, name );
633 /* output the GNU note for non-exec stack */
634 void output_gnu_stack_note(void)
636 switch (target_platform)
638 case PLATFORM_WINDOWS:
642 output( "\t.section .note.GNU-stack,\"\",@progbits\n" );
647 /* return a global symbol declaration for an assembly symbol */
648 const char *asm_globl( const char *func )
650 static char buffer[256];
652 switch (target_platform)
655 sprintf( buffer, "\t.globl _%s\n\t.private_extern _%s\n_%s:", func, func, func );
657 case PLATFORM_WINDOWS:
658 sprintf( buffer, "\t.globl _%s\n_%s:", func, func );
661 sprintf( buffer, "\t.globl %s\n\t.hidden %s\n%s:", func, func, func );
666 const char *get_asm_ptr_keyword(void)
668 switch(get_ptr_size())
670 case 4: return ".long";
671 case 8: return ".quad";
677 const char *get_asm_string_keyword(void)
679 switch (target_platform)
688 const char *get_asm_short_keyword(void)
690 switch (target_platform)
692 default: return ".short";
696 const char *get_asm_rodata_section(void)
698 switch (target_platform)
700 case PLATFORM_APPLE: return ".const";
701 default: return ".section .rodata";
705 const char *get_asm_string_section(void)
707 switch (target_platform)
709 case PLATFORM_APPLE: return ".cstring";
710 default: return ".section .rodata";