2 * This file is part of cparser.
3 * Copyright (C) 2007-2009 Matthias Braun <matze@braunis.de>
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
36 /* no eXecute on Win32 */
41 #define O_RDWR _O_RDWR
42 #define O_CREAT _O_CREAT
43 #define O_EXCL _O_EXCL
44 #define O_BINARY _O_BINARY
46 /* remap some names, we are not in the POSIX world */
47 #define access(fname, mode) _access(fname, mode)
48 #define mktemp(tmpl) _mktemp(tmpl)
49 #define open(fname, oflag, mode) _open(fname, oflag, mode)
50 #define fdopen(fd, mode) _fdopen(fd, mode)
51 #define popen(cmd, mode) _popen(cmd, mode)
52 #define pclose(file) _pclose(file)
53 #define unlink(filename) _unlink(filename)
60 #include <libfirm/firm.h>
61 #include <libfirm/be.h>
62 #include <libfirm/statev.h>
64 #include "preprocessor.h"
67 #include "type_hash.h"
71 #include "diagnostic.h"
72 #include "lang_features.h"
73 #include "driver/firm_opt.h"
74 #include "driver/firm_timing.h"
75 #include "driver/firm_machine.h"
76 #include "adt/error.h"
77 #include "adt/strutil.h"
78 #include "adt/array.h"
79 #include "wrappergen/write_fluffy.h"
80 #include "wrappergen/write_jna.h"
81 #include "wrappergen/write_compoundsizes.h"
90 #define PREPROCESSOR "gcc -E -U__STRICT_ANSI__ -U__BLOCKS__"
92 #define PREPROCESSOR "cpp -U__STRICT_ANSI__"
101 #define ASSEMBLER "gcc -c -xassembler"
104 unsigned int c_mode = _C89 | _C99 | _GNUC;
105 bool byte_order_big_endian = false;
106 bool strict_mode = false;
107 bool enable_main_collect2_hack = false;
108 bool freestanding = false;
109 unsigned architecture_modulo_shift = 0;
111 static bool char_is_signed = true;
112 static atomic_type_kind_t wchar_atomic_kind = ATOMIC_TYPE_INT;
113 static unsigned features_on = 0;
114 static unsigned features_off = 0;
115 static const char *dumpfunction = NULL;
116 static struct obstack file_obst;
117 static const char *external_preprocessor = PREPROCESSOR;
119 static machine_triple_t *target_machine;
120 static const char *target_triple;
122 static struct obstack cppflags_obst;
123 static struct obstack ldflags_obst;
124 static struct obstack asflags_obst;
125 static const char *outname;
126 static bool define_intmax_types;
127 static const char *input_encoding;
128 static bool construct_dep_target;
130 typedef enum lang_standard_t {
131 STANDARD_DEFAULT, /* gnu99 (for C, GCC does gnu89) or gnu++98 (for C++) */
132 STANDARD_ANSI, /* ISO C90 (for C) or ISO C++ 1998 (for C++) */
133 STANDARD_C89, /* ISO C90 (sic) */
134 STANDARD_C89AMD1, /* ISO C90 as modified in amendment 1 */
135 STANDARD_C99, /* ISO C99 */
136 STANDARD_C11, /* ISO C11 */
137 STANDARD_GNU89, /* ISO C90 plus GNU extensions (including some C99) */
138 STANDARD_GNU99, /* ISO C99 plus GNU extensions */
139 STANDARD_GNU11, /* ISO C11 plus GNU extensions */
140 STANDARD_CXX98, /* ISO C++ 1998 plus amendments */
141 STANDARD_GNUXX98 /* ISO C++ 1998 plus amendments and GNU extensions */
144 typedef enum compilation_unit_type_t {
145 COMPILATION_UNIT_AUTODETECT,
147 COMPILATION_UNIT_PREPROCESSED_C,
148 COMPILATION_UNIT_CXX,
149 COMPILATION_UNIT_PREPROCESSED_CXX,
150 COMPILATION_UNIT_AST,
151 COMPILATION_UNIT_INTERMEDIATE_REPRESENTATION,
152 COMPILATION_UNIT_ASSEMBLER,
153 COMPILATION_UNIT_PREPROCESSED_ASSEMBLER,
154 COMPILATION_UNIT_OBJECT,
156 COMPILATION_UNIT_UNKNOWN
157 } compilation_unit_type_t;
159 typedef struct compilation_unit_t compilation_unit_t;
160 struct compilation_unit_t {
161 const char *name; /**< filename or "-" for stdin */
162 FILE *input; /**< input (NULL if not opened yet) */
164 compilation_unit_type_t type;
165 lang_standard_t standard;
166 translation_unit_t *ast;
168 compilation_unit_t *next;
171 static char **temp_files;
173 static void get_output_name(char *buf, size_t buflen, const char *inputname,
176 if (inputname == NULL)
179 char const *const last_slash = strrchr(inputname, '/');
180 char const *const filename =
181 last_slash != NULL ? last_slash + 1 : inputname;
182 char const *const last_dot = strrchr(filename, '.');
183 char const *const name_end =
184 last_dot != NULL ? last_dot : strchr(filename, '\0');
186 int const len = snprintf(buf, buflen, "%.*s%s",
187 (int)(name_end - filename), filename, newext);
189 if (len < 0 || buflen <= (size_t)len)
191 if (buflen <= (size_t)len)
193 panic("filename too long");
196 static bool close_input(compilation_unit_t *unit)
200 if (unit->input == stdin) {
202 } else if (unit->input_is_pipe) {
203 res = pclose(unit->input) == EXIT_SUCCESS;
213 static void print_error_summary(void)
215 if (error_count > 0) {
216 /* parsing failed because of errors */
217 fprintf(stderr, "%u error(s), %u warning(s)\n", error_count,
219 } else if (warning_count > 0) {
220 fprintf(stderr, "%u warning(s)\n", warning_count);
224 static void do_parsing(compilation_unit_t *unit)
226 ir_timer_t *t_parsing = ir_timer_new();
227 timer_register(t_parsing, "Frontend: Parsing");
228 timer_start(t_parsing);
232 switch_pp_input(unit->input, unit->name, NULL, false);
234 unit->ast = finish_parsing();
235 check_unclosed_conditionals();
237 bool res = close_input(unit);
239 print_error_summary();
241 unit->type = COMPILATION_UNIT_AST;
242 unit->parse_errors = error_count > 0 || !res;
243 timer_stop(t_parsing);
244 if (stat_ev_enabled) {
245 stat_ev_dbl("time_parsing", ir_timer_elapsed_sec(t_parsing));
249 static void add_flag(struct obstack *obst, const char *format, ...)
254 va_start(ap, format);
258 vsnprintf(buf, sizeof(buf), format, ap);
261 obstack_1grow(obst, ' ');
263 obstack_1grow(obst, '"');
264 obstack_grow(obst, buf, len);
265 obstack_1grow(obst, '"');
267 /* escape stuff... */
268 for (char *c = buf; *c != '\0'; ++c) {
286 obstack_1grow(obst, '\\');
289 obstack_1grow(obst, *c);
296 static const char *type_to_string(type_t *type)
298 assert(type->kind == TYPE_ATOMIC);
299 return get_atomic_kind_name(type->atomic.akind);
302 static char const* str_lang_standard(lang_standard_t const standard)
305 case STANDARD_C89: return "c89";
306 case STANDARD_C89AMD1: return "iso9899:199409";
307 case STANDARD_C99: return "c99";
308 case STANDARD_C11: return "c11";
309 case STANDARD_GNU89: return "gnu89";
310 case STANDARD_GNU99: return "gnu99";
311 case STANDARD_GNU11: return "gnu11";
312 case STANDARD_CXX98: return "c++98";
313 case STANDARD_GNUXX98: return "gnu++98";
314 case STANDARD_ANSI: break;
315 case STANDARD_DEFAULT: break;
317 panic("invalid standard");
320 static bool run_external_preprocessor(compilation_unit_t *unit)
322 obstack_1grow(&cppflags_obst, '\0');
323 const char *flags = obstack_finish(&cppflags_obst);
325 const char *preprocessor = getenv("CPARSER_PP");
326 if (preprocessor != NULL) {
327 obstack_printf(&cppflags_obst, "%s ", preprocessor);
329 if (target_triple != NULL)
330 obstack_printf(&cppflags_obst, "%s-", target_triple);
331 obstack_printf(&cppflags_obst, "%s", external_preprocessor);
335 switch (unit->type) {
336 case COMPILATION_UNIT_C: lang = "c"; break;
337 case COMPILATION_UNIT_CXX: lang = "c++"; break;
338 case COMPILATION_UNIT_ASSEMBLER: lang = "assembler-with-cpp"; break;
339 default: lang = NULL; break;
342 add_flag(&cppflags_obst, "-x%s", lang);
344 if (unit->type == COMPILATION_UNIT_C
345 || unit->type == COMPILATION_UNIT_CXX) {
346 add_flag(&cppflags_obst, "-std=%s", str_lang_standard(unit->standard));
348 /* setup default defines */
349 add_flag(&cppflags_obst, "-U__WCHAR_TYPE__");
350 add_flag(&cppflags_obst, "-D__WCHAR_TYPE__=%s", type_to_string(type_wchar_t));
351 add_flag(&cppflags_obst, "-U__SIZE_TYPE__");
352 add_flag(&cppflags_obst, "-D__SIZE_TYPE__=%s", type_to_string(type_size_t));
354 add_flag(&cppflags_obst, "-U__VERSION__");
355 add_flag(&cppflags_obst, "-D__VERSION__=\"%s\"", cparser_REVISION);
357 if (define_intmax_types) {
358 add_flag(&cppflags_obst, "-U__INTMAX_TYPE__");
359 add_flag(&cppflags_obst, "-D__INTMAX_TYPE__=%s", type_to_string(type_intmax_t));
360 add_flag(&cppflags_obst, "-U__UINTMAX_TYPE__");
361 add_flag(&cppflags_obst, "-D__UINTMAX_TYPE__=%s", type_to_string(type_uintmax_t));
364 if (flags[0] != '\0') {
365 size_t len = strlen(flags);
366 obstack_1grow(&cppflags_obst, ' ');
367 obstack_grow(&cppflags_obst, flags, len);
370 /* handle dependency generation */
371 if (construct_dep_target) {
372 static char dep_target[4096];
374 size_t len = strlen(outname);
375 if (len > sizeof(dep_target)-4) /* leave room for .d extension */
376 len = sizeof(dep_target)-4;
377 memcpy(dep_target, outname, len);
378 /* replace extension with .d if found */
379 char *dot = &dep_target[len-1];
380 for ( ; dot >= dep_target && *dot != '/'; --dot) {
383 len = (dot-dep_target)+2;
387 dep_target[len] = '\0';
389 get_output_name(dep_target, sizeof(dep_target), unit->name, ".d");
392 add_flag(&cppflags_obst, "-MF");
393 add_flag(&cppflags_obst, dep_target);
395 assert(unit->input == NULL);
396 add_flag(&cppflags_obst, unit->name);
397 obstack_1grow(&cppflags_obst, '\0');
399 char *commandline = obstack_finish(&cppflags_obst);
403 FILE *f = popen(commandline, "r");
405 source_position_t const pos = { unit->name, 0, 0, 0 };
406 errorf(&pos, "invoking preprocessor failed");
409 /* we do not really need that anymore */
410 obstack_free(&cppflags_obst, commandline);
413 unit->input_is_pipe = true;
414 switch (unit->type) {
415 case COMPILATION_UNIT_ASSEMBLER:
416 unit->type = COMPILATION_UNIT_PREPROCESSED_ASSEMBLER;
418 case COMPILATION_UNIT_C:
419 unit->type = COMPILATION_UNIT_PREPROCESSED_C;
421 case COMPILATION_UNIT_CXX:
422 unit->type = COMPILATION_UNIT_PREPROCESSED_CXX;
425 unit->type = COMPILATION_UNIT_UNKNOWN;
432 static void assemble(const char *out, const char *in)
434 obstack_1grow(&asflags_obst, '\0');
435 const char *flags = obstack_finish(&asflags_obst);
437 const char *assembler = getenv("CPARSER_AS");
438 if (assembler != NULL) {
439 obstack_printf(&asflags_obst, "%s", assembler);
441 if (target_triple != NULL)
442 obstack_printf(&asflags_obst, "%s-", target_triple);
443 obstack_printf(&asflags_obst, "%s", ASSEMBLER);
445 if (flags[0] != '\0')
446 obstack_printf(&asflags_obst, " %s", flags);
448 obstack_printf(&asflags_obst, " %s -o %s", in, out);
449 obstack_1grow(&asflags_obst, '\0');
451 char *commandline = obstack_finish(&asflags_obst);
455 int err = system(commandline);
456 if (err != EXIT_SUCCESS) {
457 source_position_t const pos = { in, 0, 0, 0 };
458 errorf(&pos, "assembler reported an error");
461 obstack_free(&asflags_obst, commandline);
464 static void print_file_name(const char *file)
466 add_flag(&ldflags_obst, "-print-file-name=%s", file);
468 obstack_1grow(&ldflags_obst, '\0');
469 const char *flags = obstack_finish(&ldflags_obst);
471 /* construct commandline */
472 const char *linker = getenv("CPARSER_LINK");
473 if (linker != NULL) {
474 obstack_printf(&ldflags_obst, "%s ", linker);
476 if (target_triple != NULL)
477 obstack_printf(&ldflags_obst, "%s-", target_triple);
478 obstack_printf(&ldflags_obst, "%s ", LINKER);
480 obstack_printf(&ldflags_obst, "%s ", linker);
481 obstack_printf(&ldflags_obst, "%s", flags);
482 obstack_1grow(&ldflags_obst, '\0');
484 char *commandline = obstack_finish(&ldflags_obst);
488 int err = system(commandline);
489 if (err != EXIT_SUCCESS) {
490 source_position_t const pos = { file, 0, 0, 0 };
491 errorf(&pos, "linker reported an error");
494 obstack_free(&ldflags_obst, commandline);
497 static const char *try_dir(const char *dir)
501 if (access(dir, R_OK | W_OK | X_OK) == 0)
506 static const char *get_tempdir(void)
508 static const char *tmpdir = NULL;
514 tmpdir = try_dir(getenv("TMPDIR"));
516 tmpdir = try_dir(getenv("TMP"));
518 tmpdir = try_dir(getenv("TEMP"));
522 tmpdir = try_dir(P_tmpdir);
526 tmpdir = try_dir("/var/tmp");
528 tmpdir = try_dir("/usr/tmp");
530 tmpdir = try_dir("/tmp");
539 /* cheap and nasty mkstemp replacement */
540 static int mkstemp(char *templ)
543 return open(templ, O_RDWR|O_CREAT|O_EXCL|O_BINARY, 0600);
548 * custom version of tmpnam, which: writes to an obstack, emits no warnings
549 * during linking (like glibc/gnu ld do for tmpnam)...
551 static FILE *make_temp_file(const char *prefix, const char **name_result)
553 const char *tempdir = get_tempdir();
554 assert(obstack_object_size(&file_obst) == 0);
555 obstack_printf(&file_obst, "%s/%sXXXXXX", tempdir, prefix);
556 obstack_1grow(&file_obst, '\0');
558 char *name = obstack_finish(&file_obst);
559 int fd = mkstemp(name);
561 source_position_t const pos = { name, 0, 0, 0 };
562 errorf(&pos, "could not create temporary file: %s", strerror(errno));
565 FILE *out = fdopen(fd, "w");
567 source_position_t const pos = { name, 0, 0, 0 };
568 errorf(&pos, "could not open temporary file as FILE*");
572 ARR_APP1(char*, temp_files, name);
577 static void free_temp_files(void)
579 if (temp_files == NULL)
582 size_t n_temp_files = ARR_LEN(temp_files);
584 for (i = 0; i < n_temp_files; ++i) {
585 char *file = temp_files[i];
588 DEL_ARR_F(temp_files);
592 typedef enum compile_mode_t {
607 static void usage(const char *argv0)
609 fprintf(stderr, "Usage %s [options] input [-o output]\n", argv0);
612 static void print_cparser_version(void)
614 printf("cparser (%s) using libFirm (%u.%u",
615 cparser_REVISION, ir_get_version_major(),
616 ir_get_version_minor());
618 const char *revision = ir_get_version_revision();
619 if (revision[0] != 0) {
621 fputs(revision, stdout);
624 const char *build = ir_get_version_build();
627 fputs(build, stdout);
630 puts("This is free software; see the source for copying conditions. There is NO\n"
631 "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n");
634 static void print_cparser_version_short(void)
636 puts(cparser_REVISION);
639 static void print_help_basic(const char *argv0)
643 put_help("--help", "Display this information");
644 put_help("--version", "Display compiler version");
645 put_help("--help-parser", "Display information about parser options");
646 put_help("--help-warnings", "Display information about warning options");
647 put_help("--help-codegen", "Display information about code-generation options");
648 put_help("--help-optimization", "Display information about optimization options");
649 put_help("--help-linker", "Display information about linker options");
650 put_help("--help-language-tools", "Display information about language tools options");
651 put_help("--help-debug", "Display information about compiler debugging options");
652 put_help("--help-firm", "Display information about direct firm options");
653 put_help("--help-all", "Display information about all options");
654 put_help("-c", "Compile and assemble but do not link");
655 put_help("-E", "Preprocess only");
656 put_help("-S", "Compile but do not assembler or link");
657 put_help("-o", "Specify output file");
658 put_help("-v", "Verbose output (show invocation of sub-processes)");
659 put_help("-x", "Force input language:");
660 put_choice("c", "C");
661 put_choice("c++", "C++");
662 put_choice("assembler", "Assembler (no preprocessing)");
663 put_choice("assembler-with-cpp", "Assembler with preprocessing");
664 put_choice("none", "Autodetection");
665 put_help("-pipe", "Ignored (gcc compatibility)");
668 static void print_help_preprocessor(void)
670 put_help("-nostdinc", "Do not search standard system include directories");
671 put_help("-trigraphs", "Support ISO C trigraphs");
672 put_help("-isystem", "");
673 put_help("-include", "");
674 put_help("-I PATH", "");
675 put_help("-D SYMBOL[=value]", "");
676 put_help("-U SYMBOL", "");
677 put_help("-Wp,OPTION", "Pass option directly to preprocessor");
680 put_help("-MMD", "");
688 static void print_help_parser(void)
690 put_help("-finput-charset=CHARSET", "Select encoding of input files");
691 put_help("-fmessage-length=LEN", "Ignored (gcc compatibility)");
692 put_help("-fshort-wchar", "Type \"wchar_t\" is unsigned short instead of int");
693 put_help("-fshow-column", "Show the column number in diagnostic messages");
694 put_help("-fsigned-char", "Type \"char\" is a signed type");
695 put_help("-funsigned-char", "Type \"char\" is an unsigned type");
696 put_help("--ms", "Enable msvc extensions");
697 put_help("--no-ms", "Disable msvc extensions");
698 put_help("--gcc", "Enable gcc extensions");
699 put_help("--no-gcc", "Disable gcc extensions");
700 put_help("-std=STANDARD", "Specify language standard:");
701 put_choice("c99", "ISO C99 standard");
702 put_choice("c89", "ISO C89 standard");
703 put_choice("c90", "Same as -std=c89");
704 put_choice("c11", "ISO C11 standard");
705 put_choice("c9x", "Deprecated");
706 put_choice("c++", "ISO C++ 98");
707 put_choice("c++98", "ISO C++ 98");
708 put_choice("gnu99", "ISO C99 + GNU extensions (default)");
709 put_choice("gnu89", "ISO C89 + GNU extensions");
710 put_choice("gnu11", "ISO C11 + GNU extensions");
711 put_choice("gnu9x", "Deprecated");
712 put_choice("iso9899:1990", "ISO C89");
713 put_choice("iso9899:199409", "ISO C90");
714 put_choice("iso9899:1999", "ISO C99");
715 put_choice("iso9899:199x", "Deprecated");
716 put_help("-pedantic", "Ignored (gcc compatibility)");
717 put_help("-ansi", "-std=c90 (for C) or -std=c++98 (for C++)");
718 put_help("--strict", "Enable strict conformance checking");
721 static void print_help_warnings(void)
723 put_help("-f[no-]diagnostics-show-option", "Show the switch, which controls a warning, after each warning");
724 put_help("-w", "Disable all warnings");
725 put_help("-Wno-trigraphs", "Warn if input contains trigraphs");
726 put_help("-Wundef", "Warn if an undefined macro is used in an #if");
727 put_help("-Wmissing-include-dirs", "Warn about missing user-specified include directories");
728 put_help("-Wendif-labels", "Warn about stray text after #elif and #endif");
729 put_help("-Winit-self", "Ignored (gcc compatibility)");
730 put_help("-Wformat-y2k", "Ignored (gcc compatibility)");
731 put_help("-Wformat-security", "Ignored (gcc compatibility)");
732 put_help("-Wold-style-declaration", "Ignored (gcc compatibility)");
733 put_help("-Wtype-limits", "Ignored (gcc compatibility)");
734 print_warning_opt_help();
737 static void print_help_optimization(void)
739 put_help("-O LEVEL", "Select optimization level (0-4)");
740 firm_option_help(put_help);
741 put_help("-fexpensive-optimizations","Ignored (gcc compatibility)");
744 static void print_help_codegeneration(void)
746 put_help("-g", "Generate debug information");
747 put_help("-pg", "Instrument code for gnu gprof");
748 put_help("-fomit-frame-pointer", "Produce code without frame pointer where possible");
749 put_help("-ffreestanding", "Compile in freestanding mode (see ISO C standard)");
750 put_help("-fhosted", "Compile in hosted (not freestanding) mode");
751 put_help("-fprofile-generate", "Generate instrumented code to collect profile information");
752 put_help("-fprofile-use", "Use profile information generated by instrumented binaries");
753 put_help("-ffp-precise", "Precise floating point model");
754 put_help("-ffp-fast", "Imprecise floating point model");
755 put_help("-ffp-strict", "Strict floating point model");
756 put_help("-pthread", "Use pthread threading library");
757 put_help("-mtarget=TARGET", "Specify target architecture as CPU-manufacturer-OS triple");
758 put_help("-mtriple=TARGET", "Alias for -mtarget (clang compatibility)");
759 put_help("-march=ARCH", "");
760 put_help("-mtune=ARCH", "");
761 put_help("-mcpu=CPU", "");
762 put_help("-mfpmath=", "");
763 put_help("-mpreferred-stack-boundary=", "");
764 put_help("-mrtd", "");
765 put_help("-mregparm=", "Not supported yet");
766 put_help("-msoft-float", "Not supported yet");
767 put_help("-m32", "Generate 32bit code");
768 put_help("-m64", "Generate 64bit code");
769 put_help("-fverbose-asm", "Ignored (gcc compatibility)");
770 put_help("-fjump-tables", "Ignored (gcc compatibility)");
771 put_help("-fcommon", "Ignored (gcc compatibility)");
772 put_help("-foptimize-sibling-calls", "Ignored (gcc compatibility)");
773 put_help("-falign-loops", "Ignored (gcc compatibility)");
774 put_help("-falign-jumps", "Ignored (gcc compatibility)");
775 put_help("-falign-functions", "Ignored (gcc compatibility)");
776 put_help("-fPIC", "Ignored (gcc compatibility)");
777 put_help("-ffast-math", "Same as -ffp-fast (gcc compatibility)");
779 puts("\tMost of these options can be used with a no- prefix to disable them");
780 puts("\te.g. -fno-omit-frame-pointer");
783 static void print_help_linker(void)
785 put_help("-l LIBRARY", "");
786 put_help("-L PATH", "");
787 put_help("-s", "Do not produce symbol table and relocation information");
788 put_help("-shared", "Produce a shared library");
789 put_help("-static", "Produce statically linked binary");
790 put_help("-Wl,OPTION", "Pass option directly to linker");
793 static void print_help_debug(void)
795 put_help("--print-ast", "Preprocess, parse and print AST");
796 put_help("--print-implicit-cast", "");
797 put_help("--print-parenthesis", "");
798 put_help("--benchmark", "Preprocess and parse, produces no output");
799 put_help("--time", "Measure time of compiler passes");
800 put_help("--statev", "Produce statev output");
801 put_help("--filtev=filter", "Set statev filter regex");
802 put_help("--dump-function func", "Preprocess, parse and output vcg graph of func");
803 put_help("--export-ir", "Preprocess, parse and output compiler intermediate representation");
806 static void print_help_language_tools(void)
808 put_help("--print-fluffy", "Preprocess, parse and generate declarations for the fluffy language");
809 put_help("--print-jna", "Preprocess, parse and generate declarations for JNA");
810 put_help("--jna-limit filename", "");
811 put_help("--jna-libname name", "");
814 static void print_help_firm(void)
816 put_help("-bOPTION", "Directly pass option to libFirm backend");
817 int res = be_parse_arg("help");
825 HELP_PREPROCESSOR = 1 << 1,
826 HELP_PARSER = 1 << 2,
827 HELP_WARNINGS = 1 << 3,
828 HELP_OPTIMIZATION = 1 << 4,
829 HELP_CODEGEN = 1 << 5,
830 HELP_LINKER = 1 << 6,
831 HELP_LANGUAGETOOLS = 1 << 7,
838 static void print_help(const char *argv0, help_sections_t sections)
840 if (sections & HELP_BASIC) print_help_basic(argv0);
841 if (sections & HELP_PREPROCESSOR) print_help_preprocessor();
842 if (sections & HELP_PARSER) print_help_parser();
843 if (sections & HELP_WARNINGS) print_help_warnings();
844 if (sections & HELP_OPTIMIZATION) print_help_optimization();
845 if (sections & HELP_CODEGEN) print_help_codegeneration();
846 if (sections & HELP_LINKER) print_help_linker();
847 if (sections & HELP_LANGUAGETOOLS) print_help_language_tools();
848 if (sections & HELP_DEBUG) print_help_debug();
849 if (sections & HELP_FIRM) print_help_firm();
852 static void set_be_option(const char *arg)
854 int res = be_parse_arg(arg);
859 static compilation_unit_type_t get_unit_type_from_string(const char *string)
861 if (streq(string, "c") || streq(string, "c-header"))
862 return COMPILATION_UNIT_C;
863 if (streq(string, "c++") || streq(string, "c++-header"))
864 return COMPILATION_UNIT_CXX;
865 if (streq(string, "assembler"))
866 return COMPILATION_UNIT_PREPROCESSED_ASSEMBLER;
867 if (streq(string, "assembler-with-cpp"))
868 return COMPILATION_UNIT_ASSEMBLER;
869 if (streq(string, "none"))
870 return COMPILATION_UNIT_AUTODETECT;
872 return COMPILATION_UNIT_UNKNOWN;
875 static bool init_os_support(void)
877 wchar_atomic_kind = ATOMIC_TYPE_INT;
878 enable_main_collect2_hack = false;
879 define_intmax_types = false;
881 if (firm_is_unixish_os(target_machine)) {
882 set_create_ld_ident(create_name_linux_elf);
883 } else if (firm_is_darwin_os(target_machine)) {
884 set_create_ld_ident(create_name_macho);
885 define_intmax_types = true;
886 } else if (firm_is_windows_os(target_machine)) {
887 wchar_atomic_kind = ATOMIC_TYPE_USHORT;
888 enable_main_collect2_hack = true;
889 set_create_ld_ident(create_name_win32);
897 static bool parse_target_triple(const char *arg)
899 machine_triple_t *triple = firm_parse_machine_triple(arg);
900 if (triple == NULL) {
901 errorf(NULL, "target-triple '%s' is not in the form 'cpu_type-manufacturer-operating_system'", arg);
904 target_machine = triple;
908 static unsigned decide_modulo_shift(unsigned type_size)
910 if (architecture_modulo_shift == 0)
912 if (type_size < architecture_modulo_shift)
913 return architecture_modulo_shift;
917 static bool is_ia32_cpu(const char *architecture)
919 return streq(architecture, "i386")
920 || streq(architecture, "i486")
921 || streq(architecture, "i586")
922 || streq(architecture, "i686")
923 || streq(architecture, "i786");
926 static const char *setup_isa_from_tripel(const machine_triple_t *machine)
928 const char *cpu = machine->cpu_type;
930 if (is_ia32_cpu(cpu)) {
932 } else if (streq(cpu, "x86_64")) {
934 } else if (streq(cpu, "sparc")) {
936 } else if (streq(cpu, "arm")) {
939 errorf(NULL, "unknown cpu '%s' in target-triple", cpu);
944 static const char *setup_target_machine(void)
946 if (!setup_firm_for_machine(target_machine))
949 const char *isa = setup_isa_from_tripel(target_machine);
960 * initialize cparser type properties based on a firm type
962 static void set_typeprops_type(atomic_type_properties_t* props, ir_type *type)
964 props->size = get_type_size_bytes(type);
965 props->alignment = get_type_alignment_bytes(type);
966 props->struct_alignment = props->alignment;
970 * Copy atomic type properties except the integer conversion rank
972 static void copy_typeprops(atomic_type_properties_t *dest,
973 const atomic_type_properties_t *src)
975 dest->size = src->size;
976 dest->alignment = src->alignment;
977 dest->struct_alignment = src->struct_alignment;
978 dest->flags = src->flags;
981 static void init_types_and_adjust(void)
983 const backend_params *be_params = be_get_backend_param();
984 unsigned machine_size = be_params->machine_size;
985 init_types(machine_size);
987 atomic_type_properties_t *props = atomic_type_properties;
989 /* adjust types as requested by target architecture */
990 ir_type *type_long_double = be_params->type_long_double;
991 if (type_long_double != NULL) {
992 set_typeprops_type(&props[ATOMIC_TYPE_LONG_DOUBLE], type_long_double);
993 atomic_modes[ATOMIC_TYPE_LONG_DOUBLE] = get_type_mode(type_long_double);
996 ir_type *type_long_long = be_params->type_long_long;
997 if (type_long_long != NULL)
998 set_typeprops_type(&props[ATOMIC_TYPE_LONGLONG], type_long_long);
1000 ir_type *type_unsigned_long_long = be_params->type_unsigned_long_long;
1001 if (type_unsigned_long_long != NULL)
1002 set_typeprops_type(&props[ATOMIC_TYPE_ULONGLONG], type_unsigned_long_long);
1004 /* operating system ABI specifics */
1005 if (firm_is_darwin_os(target_machine)) {
1006 if (is_ia32_cpu(target_machine->cpu_type)) {
1007 props[ATOMIC_TYPE_LONGLONG].struct_alignment = 4;
1008 props[ATOMIC_TYPE_ULONGLONG].struct_alignment = 4;
1009 props[ATOMIC_TYPE_DOUBLE].struct_alignment = 4;
1010 props[ATOMIC_TYPE_LONG_DOUBLE].size = 16;
1011 props[ATOMIC_TYPE_LONG_DOUBLE].alignment = 16;
1012 props[ATOMIC_TYPE_LONG_DOUBLE].struct_alignment = 16;
1014 } else if (firm_is_windows_os(target_machine)) {
1015 if (is_ia32_cpu(target_machine->cpu_type)) {
1016 props[ATOMIC_TYPE_LONGLONG].struct_alignment = 8;
1017 props[ATOMIC_TYPE_ULONGLONG].struct_alignment = 8;
1018 props[ATOMIC_TYPE_DOUBLE].struct_alignment = 8;
1019 } else if (machine_size == 64) {
1020 /* to ease porting of old c-code microsoft decided to use 32bits
1022 props[ATOMIC_TYPE_LONG] = props[ATOMIC_TYPE_INT];
1023 props[ATOMIC_TYPE_ULONG] = props[ATOMIC_TYPE_UINT];
1026 /* on windows long double is not supported */
1027 props[ATOMIC_TYPE_LONG_DOUBLE] = props[ATOMIC_TYPE_DOUBLE];
1028 } else if (firm_is_unixish_os(target_machine)) {
1029 if (is_ia32_cpu(target_machine->cpu_type)) {
1030 props[ATOMIC_TYPE_DOUBLE].struct_alignment = 4;
1031 props[ATOMIC_TYPE_LONGLONG].struct_alignment = 4;
1032 props[ATOMIC_TYPE_ULONGLONG].struct_alignment = 4;
1036 /* stuff decided after processing operating system specifics and
1037 * commandline flags */
1038 if (char_is_signed) {
1039 props[ATOMIC_TYPE_CHAR].flags |= ATOMIC_TYPE_FLAG_SIGNED;
1041 props[ATOMIC_TYPE_CHAR].flags &= ~ATOMIC_TYPE_FLAG_SIGNED;
1043 /* copy over wchar_t properties (including rank) */
1044 props[ATOMIC_TYPE_WCHAR_T] = props[wchar_atomic_kind];
1046 /* initialize defaults for unsupported types */
1047 if (type_long_long == NULL) {
1048 copy_typeprops(&props[ATOMIC_TYPE_LONGLONG], &props[ATOMIC_TYPE_LONG]);
1050 if (type_unsigned_long_long == NULL) {
1051 copy_typeprops(&props[ATOMIC_TYPE_ULONGLONG],
1052 &props[ATOMIC_TYPE_ULONG]);
1054 if (type_long_double == NULL) {
1055 copy_typeprops(&props[ATOMIC_TYPE_LONG_DOUBLE],
1056 &props[ATOMIC_TYPE_DOUBLE]);
1059 /* initialize firm pointer modes */
1061 unsigned bit_size = machine_size;
1062 unsigned modulo_shift = decide_modulo_shift(bit_size);
1064 snprintf(name, sizeof(name), "p%u", machine_size);
1065 ir_mode *ptr_mode = new_reference_mode(name, irma_twos_complement, bit_size, modulo_shift);
1067 if (machine_size == 16) {
1068 set_reference_mode_signed_eq(ptr_mode, mode_Hs);
1069 set_reference_mode_unsigned_eq(ptr_mode, mode_Hu);
1070 } else if (machine_size == 32) {
1071 set_reference_mode_signed_eq(ptr_mode, mode_Is);
1072 set_reference_mode_unsigned_eq(ptr_mode, mode_Iu);
1073 } else if (machine_size == 64) {
1074 set_reference_mode_signed_eq(ptr_mode, mode_Ls);
1075 set_reference_mode_unsigned_eq(ptr_mode, mode_Lu);
1077 panic("strange machine_size when determining pointer modes");
1080 /* Hmm, pointers should be machine size */
1081 set_modeP_data(ptr_mode);
1082 set_modeP_code(ptr_mode);
1084 byte_order_big_endian = be_params->byte_order_big_endian;
1085 if (be_params->modulo_shift_efficient) {
1086 architecture_modulo_shift = machine_size;
1088 architecture_modulo_shift = 0;
1092 static void setup_cmode(const compilation_unit_t *unit)
1094 compilation_unit_type_t type = unit->type;
1095 lang_standard_t standard = unit->standard;
1096 if (type == COMPILATION_UNIT_PREPROCESSED_C || type == COMPILATION_UNIT_C) {
1098 case STANDARD_C89: c_mode = _C89; break;
1099 /* TODO determine difference between these two */
1100 case STANDARD_C89AMD1: c_mode = _C89; break;
1101 case STANDARD_C99: c_mode = _C89 | _C99; break;
1102 case STANDARD_C11: c_mode = _C89 | _C99 | _C11; break;
1103 case STANDARD_GNU89: c_mode = _C89 | _GNUC; break;
1104 case STANDARD_GNU11: c_mode = _C89 | _C99 | _C11 | _GNUC; break;
1107 case STANDARD_CXX98:
1108 case STANDARD_GNUXX98:
1109 case STANDARD_DEFAULT:
1110 fprintf(stderr, "warning: command line option \"-std=%s\" is not valid for C\n", str_lang_standard(standard));
1112 case STANDARD_GNU99: c_mode = _C89 | _C99 | _GNUC; break;
1114 } else if (type == COMPILATION_UNIT_PREPROCESSED_CXX
1115 || type == COMPILATION_UNIT_CXX) {
1117 case STANDARD_CXX98: c_mode = _CXX; break;
1121 case STANDARD_C89AMD1:
1124 case STANDARD_GNU89:
1125 case STANDARD_GNU99:
1126 case STANDARD_GNU11:
1127 case STANDARD_DEFAULT:
1128 fprintf(stderr, "warning: command line option \"-std=%s\" is not valid for C++\n", str_lang_standard(standard));
1130 case STANDARD_GNUXX98: c_mode = _CXX | _GNUC; break;
1134 c_mode |= features_on;
1135 c_mode &= ~features_off;
1138 static void determine_unit_standard(compilation_unit_t *unit,
1139 lang_standard_t standard)
1141 unit->standard = standard;
1144 switch (unit->type) {
1145 case COMPILATION_UNIT_C:
1146 case COMPILATION_UNIT_PREPROCESSED_C:
1147 unit->standard = STANDARD_C89;
1149 case COMPILATION_UNIT_CXX:
1150 case COMPILATION_UNIT_PREPROCESSED_CXX:
1151 unit->standard = STANDARD_CXX98;
1158 case STANDARD_DEFAULT:
1159 switch (unit->type) {
1160 case COMPILATION_UNIT_C:
1161 case COMPILATION_UNIT_PREPROCESSED_C:
1162 unit->standard = STANDARD_GNU99;
1164 case COMPILATION_UNIT_CXX:
1165 case COMPILATION_UNIT_PREPROCESSED_CXX:
1166 unit->standard = STANDARD_GNUXX98;
1178 static bool output_preprocessor_tokens(compilation_unit_t *unit, FILE *out)
1180 /* just here for gcc compatibility */
1181 fprintf(out, "# 1 \"%s\"\n", unit->name);
1182 fprintf(out, "# 1 \"<built-in>\"\n");
1183 fprintf(out, "# 1 \"<command-line>\"\n");
1185 set_preprocessor_output(out);
1186 switch_pp_input(unit->input, unit->name, NULL, false);
1189 next_preprocessing_token();
1190 if (pp_token.kind == T_EOF)
1196 check_unclosed_conditionals();
1198 print_error_summary();
1199 set_preprocessor_output(NULL);
1201 if (unit->type == COMPILATION_UNIT_C) {
1202 unit->type = COMPILATION_UNIT_PREPROCESSED_C;
1203 } else if (unit->type == COMPILATION_UNIT_CXX) {
1204 unit->type = COMPILATION_UNIT_PREPROCESSED_CXX;
1206 bool res = close_input(unit);
1207 return res && error_count == 0;
1210 static void copy_file(FILE *dest, FILE *input)
1214 while (!feof(input) && !ferror(dest)) {
1215 size_t read = fread(buf, 1, sizeof(buf), input);
1216 if (fwrite(buf, 1, read, dest) != read) {
1217 perror("could not write output");
1222 static bool open_input(compilation_unit_t *unit)
1224 /* input already available as FILE? */
1225 if (unit->input != NULL)
1228 const char *const inputname = unit->name;
1229 unit->input_is_pipe = false;
1230 if (streq(inputname, "-")) {
1231 unit->input = stdin;
1233 unit->input = fopen(inputname, "r");
1234 if (unit->input == NULL) {
1235 source_position_t const pos = { inputname, 0, 0, 0 };
1236 errorf(&pos, "could not open: %s", strerror(errno));
1243 static void node_counter(ir_node *node, void *env)
1246 unsigned long long *count = (unsigned long long*)env;
1250 static unsigned long long count_firm_nodes(void)
1252 unsigned long long count = 0;
1254 int n_irgs = get_irp_n_irgs();
1255 for (int i = 0; i < n_irgs; ++i) {
1256 ir_graph *irg = get_irp_irg(i);
1257 irg_walk_graph(irg, node_counter, NULL, &count);
1262 static int compilation_loop(compile_mode_t mode, compilation_unit_t *units,
1263 lang_standard_t standard, FILE *out)
1265 int result = EXIT_SUCCESS;
1266 bool already_constructed_firm = false;
1267 for (compilation_unit_t *unit = units; unit != NULL; unit = unit->next) {
1268 const char *const inputname = unit->name;
1270 determine_unit_standard(unit, standard);
1273 stat_ev_ctx_push_str("compilation_unit", inputname);
1276 switch (unit->type) {
1277 case COMPILATION_UNIT_IR: {
1278 bool res = open_input(unit);
1280 result = EXIT_FAILURE;
1283 res = !ir_import_file(unit->input, unit->name);
1285 source_position_t const pos = { inputname, 0, 0, 0 };
1286 errorf(&pos, "import of firm graph failed");
1287 result = EXIT_FAILURE;
1290 unit->type = COMPILATION_UNIT_INTERMEDIATE_REPRESENTATION;
1293 case COMPILATION_UNIT_ASSEMBLER: {
1294 if (external_preprocessor == NULL) {
1295 panic("preprocessed assembler not possible with internal preprocessor yet");
1297 bool res = run_external_preprocessor(unit);
1299 result = EXIT_FAILURE;
1302 /* write file to output... */
1304 if (mode == PreprocessOnly) {
1307 asm_out = make_temp_file("ccs", &unit->name);
1309 assert(unit->input != NULL);
1310 assert(unit->input_is_pipe);
1311 copy_file(asm_out, unit->input);
1314 unit->type = COMPILATION_UNIT_PREPROCESSED_ASSEMBLER;
1317 case COMPILATION_UNIT_C:
1318 case COMPILATION_UNIT_CXX:
1319 if (external_preprocessor != NULL) {
1320 bool res = run_external_preprocessor(unit);
1322 result = EXIT_FAILURE;
1329 case COMPILATION_UNIT_PREPROCESSED_C:
1330 case COMPILATION_UNIT_PREPROCESSED_CXX: {
1331 bool res = open_input(unit);
1333 result = EXIT_FAILURE;
1338 if (mode == PreprocessOnly) {
1339 bool res = output_preprocessor_tokens(unit, out);
1341 result = EXIT_FAILURE;
1347 /* do the actual parsing */
1351 case COMPILATION_UNIT_AST:
1352 /* prints the AST even if errors occurred */
1353 if (mode == PrintAst) {
1355 print_ast(unit->ast);
1357 if (unit->parse_errors) {
1358 result = EXIT_FAILURE;
1362 if (mode == BenchmarkParser) {
1364 } else if (mode == PrintFluffy) {
1365 write_fluffy_decls(out, unit->ast);
1367 } else if (mode == PrintJna) {
1368 write_jna_decls(out, unit->ast);
1370 } else if (mode == PrintCompoundSizes) {
1371 write_compoundsizes(out, unit->ast);
1375 /* build the firm graph */
1376 ir_timer_t *t_construct = ir_timer_new();
1377 timer_register(t_construct, "Frontend: Graph construction");
1378 timer_start(t_construct);
1379 if (already_constructed_firm) {
1380 panic("compiling multiple files/translation units not possible");
1382 init_implicit_optimizations();
1383 translation_unit_to_firm(unit->ast);
1384 already_constructed_firm = true;
1385 timer_stop(t_construct);
1386 if (stat_ev_enabled) {
1387 stat_ev_dbl("time_graph_construction", ir_timer_elapsed_sec(t_construct));
1388 stat_ev_int("size_graph_construction", count_firm_nodes());
1390 unit->type = COMPILATION_UNIT_INTERMEDIATE_REPRESENTATION;
1393 case COMPILATION_UNIT_INTERMEDIATE_REPRESENTATION:
1394 if (mode == ParseOnly)
1397 if (mode == CompileDump) {
1399 ident *id = new_id_from_str(dumpfunction);
1400 ir_graph *irg = NULL;
1401 int n_irgs = get_irp_n_irgs();
1402 for (int i = 0; i < n_irgs; ++i) {
1403 ir_graph *tirg = get_irp_irg(i);
1404 ident *irg_id = get_entity_ident(get_irg_entity(tirg));
1412 errorf(NULL, "no graph for function '%s' found", dumpfunction);
1413 return EXIT_FAILURE;
1416 dump_ir_graph_file(out, irg);
1418 return EXIT_SUCCESS;
1421 if (mode == CompileExportIR) {
1422 ir_export_file(out);
1423 if (ferror(out) != 0) {
1424 errorf(NULL, "writing to output failed");
1425 return EXIT_FAILURE;
1427 return EXIT_SUCCESS;
1431 if (mode == Compile) {
1434 asm_out = make_temp_file("ccs", &unit->name);
1436 ir_timer_t *t_opt_codegen = ir_timer_new();
1437 timer_register(t_opt_codegen, "Optimization and Codegeneration");
1438 timer_start(t_opt_codegen);
1439 generate_code(asm_out, inputname);
1440 timer_stop(t_opt_codegen);
1441 if (stat_ev_enabled) {
1442 stat_ev_dbl("time_opt_codegen", ir_timer_elapsed_sec(t_opt_codegen));
1444 if (asm_out != out) {
1447 unit->type = COMPILATION_UNIT_PREPROCESSED_ASSEMBLER;
1449 case COMPILATION_UNIT_PREPROCESSED_ASSEMBLER:
1450 if (mode != CompileAssemble && mode != CompileAssembleLink)
1454 const char *input = unit->name;
1455 if (mode == CompileAssemble) {
1457 unit->name = outname;
1459 FILE *tempf = make_temp_file("cco", &unit->name);
1464 assemble(unit->name, input);
1466 unit->type = COMPILATION_UNIT_OBJECT;
1468 case COMPILATION_UNIT_UNKNOWN:
1469 case COMPILATION_UNIT_AUTODETECT:
1470 case COMPILATION_UNIT_OBJECT:
1474 stat_ev_ctx_pop("compilation_unit");
1479 static int link_program(compilation_unit_t *units)
1481 obstack_1grow(&ldflags_obst, '\0');
1482 const char *flags = obstack_finish(&ldflags_obst);
1484 /* construct commandline */
1485 const char *linker = getenv("CPARSER_LINK");
1486 if (linker != NULL) {
1487 obstack_printf(&file_obst, "%s ", linker);
1489 if (target_triple != NULL)
1490 obstack_printf(&file_obst, "%s-", target_triple);
1491 obstack_printf(&file_obst, "%s ", LINKER);
1494 for (compilation_unit_t *unit = units; unit != NULL; unit = unit->next) {
1495 if (unit->type != COMPILATION_UNIT_OBJECT)
1498 add_flag(&file_obst, "%s", unit->name);
1501 add_flag(&file_obst, "-o");
1502 add_flag(&file_obst, outname);
1503 obstack_printf(&file_obst, "%s", flags);
1504 obstack_1grow(&file_obst, '\0');
1506 char *commandline = obstack_finish(&file_obst);
1511 int err = system(commandline);
1512 if (err != EXIT_SUCCESS) {
1513 errorf(NULL, "linker reported an error");
1514 return EXIT_FAILURE;
1516 return EXIT_SUCCESS;
1519 int main(int argc, char **argv)
1521 const char *print_file_name_file = NULL;
1522 compile_mode_t mode = CompileAssembleLink;
1524 char cpu_arch[16] = "ia32";
1525 compilation_unit_t *units = NULL;
1526 compilation_unit_t *last_unit = NULL;
1527 bool produce_statev = false;
1528 const char *filtev = NULL;
1529 bool profile_generate = false;
1530 bool profile_use = false;
1531 bool do_timing = false;
1532 bool print_timing = false;
1534 /* hack for now... */
1535 if (strstr(argv[0], "pptest") != NULL) {
1536 extern int pptest_main(int argc, char **argv);
1537 return pptest_main(argc, argv);
1540 temp_files = NEW_ARR_F(char*, 0);
1541 atexit(free_temp_files);
1543 obstack_init(&cppflags_obst);
1544 obstack_init(&ldflags_obst);
1545 obstack_init(&asflags_obst);
1546 obstack_init(&file_obst);
1547 init_include_paths();
1549 #define GET_ARG_AFTER(def, args) \
1551 def = &arg[sizeof(args)-1]; \
1552 if (def[0] == '\0') { \
1555 errorf(NULL, "expected argument after '" args "'"); \
1556 argument_errors = true; \
1560 if (def[0] == '-' && def[1] != '\0') { \
1561 errorf(NULL, "expected argument after '" args "'"); \
1562 argument_errors = true; \
1568 #define SINGLE_OPTION(ch) (option[0] == (ch) && option[1] == '\0')
1570 /* initialize this early because it has to parse options */
1573 /* early options parsing (find out optimization level and OS) */
1574 for (int i = 1; i < argc; ++i) {
1575 const char *arg = argv[i];
1579 const char *option = &arg[1];
1580 if (option[0] == 'O') {
1581 sscanf(&option[1], "%d", &opt_level);
1585 if (target_machine == NULL) {
1586 target_machine = firm_get_host_machine();
1588 choose_optimization_pack(opt_level);
1589 setup_target_machine();
1591 /* parse rest of options */
1592 lang_standard_t standard = STANDARD_DEFAULT;
1593 compilation_unit_type_t forced_unittype = COMPILATION_UNIT_AUTODETECT;
1594 help_sections_t help = HELP_NONE;
1595 bool argument_errors = false;
1596 for (int i = 1; i < argc; ++i) {
1597 const char *arg = argv[i];
1598 if (arg[0] == '-' && arg[1] != '\0') {
1600 const char *option = &arg[1];
1601 if (option[0] == 'o') {
1602 GET_ARG_AFTER(outname, "-o");
1603 } else if (option[0] == 'g') {
1604 /* TODO: parse -gX with 0<=x<=3... */
1605 set_be_option("debug=frameinfo");
1606 set_be_option("ia32-nooptcc=yes");
1607 } else if (SINGLE_OPTION('c')) {
1608 mode = CompileAssemble;
1609 } else if (SINGLE_OPTION('E')) {
1610 mode = PreprocessOnly;
1611 } else if (SINGLE_OPTION('s')) {
1612 add_flag(&ldflags_obst, "-s");
1613 } else if (SINGLE_OPTION('S')) {
1615 } else if (option[0] == 'O') {
1617 } else if (option[0] == 'I') {
1619 GET_ARG_AFTER(opt, "-I");
1620 add_flag(&cppflags_obst, "-I%s", opt);
1621 append_include_path(&bracket_searchpath, opt);
1622 } else if (option[0] == 'D') {
1624 GET_ARG_AFTER(opt, "-D");
1625 add_flag(&cppflags_obst, "-D%s", opt);
1626 } else if (option[0] == 'U') {
1628 GET_ARG_AFTER(opt, "-U");
1629 add_flag(&cppflags_obst, "-U%s", opt);
1630 } else if (option[0] == 'l') {
1632 GET_ARG_AFTER(opt, "-l");
1633 add_flag(&ldflags_obst, "-l%s", opt);
1634 } else if (option[0] == 'L') {
1636 GET_ARG_AFTER(opt, "-L");
1637 add_flag(&ldflags_obst, "-L%s", opt);
1638 } else if (SINGLE_OPTION('v')) {
1640 } else if (SINGLE_OPTION('w')) {
1641 add_flag(&cppflags_obst, "-w");
1642 disable_all_warnings();
1643 } else if (option[0] == 'x') {
1645 GET_ARG_AFTER(opt, "-x");
1646 forced_unittype = get_unit_type_from_string(opt);
1647 if (forced_unittype == COMPILATION_UNIT_UNKNOWN) {
1648 errorf(NULL, "unknown language '%s'", opt);
1649 argument_errors = true;
1651 } else if (streq(option, "M")) {
1652 mode = PreprocessOnly;
1653 add_flag(&cppflags_obst, "-M");
1654 } else if (streq(option, "MMD") ||
1655 streq(option, "MD")) {
1656 construct_dep_target = true;
1657 add_flag(&cppflags_obst, "-%s", option);
1658 } else if (streq(option, "MM") ||
1659 streq(option, "MP")) {
1660 add_flag(&cppflags_obst, "-%s", option);
1661 } else if (streq(option, "MT") ||
1662 streq(option, "MQ") ||
1663 streq(option, "MF")) {
1665 GET_ARG_AFTER(opt, "-MT");
1666 add_flag(&cppflags_obst, "-%s", option);
1667 add_flag(&cppflags_obst, "%s", opt);
1668 } else if (streq(option, "include")) {
1670 GET_ARG_AFTER(opt, "-include");
1671 add_flag(&cppflags_obst, "-include");
1672 add_flag(&cppflags_obst, "%s", opt);
1673 } else if (streq(option, "idirafter")) {
1675 GET_ARG_AFTER(opt, "-idirafter");
1676 add_flag(&cppflags_obst, "-idirafter");
1677 add_flag(&cppflags_obst, "%s", opt);
1678 append_include_path(&after_searchpath, opt);
1679 } else if (streq(option, "isystem")) {
1681 GET_ARG_AFTER(opt, "-isystem");
1682 add_flag(&cppflags_obst, "-isystem");
1683 add_flag(&cppflags_obst, "%s", opt);
1684 append_include_path(&system_searchpath, opt);
1685 } else if (streq(option, "iquote")) {
1687 GET_ARG_AFTER(opt, "-iquote");
1688 add_flag(&cppflags_obst, "-iquote");
1689 add_flag(&cppflags_obst, "%s", opt);
1690 append_include_path("e_searchpath, opt);
1691 } else if (streq(option, "pthread")) {
1692 /* set flags for the preprocessor */
1693 add_flag(&cppflags_obst, "-D_REENTRANT");
1694 /* set flags for the linker */
1695 add_flag(&ldflags_obst, "-lpthread");
1696 } else if (streq(option, "nostdinc")
1697 || streq(option, "trigraphs")) {
1698 /* pass these through to the preprocessor */
1699 add_flag(&cppflags_obst, "%s", arg);
1700 } else if (streq(option, "pipe")) {
1701 /* here for gcc compatibility */
1702 } else if (streq(option, "static")) {
1703 add_flag(&ldflags_obst, "-static");
1704 } else if (streq(option, "shared")) {
1705 add_flag(&ldflags_obst, "-shared");
1706 } else if (option[0] == 'f') {
1707 char const *orig_opt;
1708 GET_ARG_AFTER(orig_opt, "-f");
1710 if (strstart(orig_opt, "input-charset=")) {
1711 char const* const encoding = strchr(orig_opt, '=') + 1;
1712 input_encoding = encoding;
1713 } else if (strstart(orig_opt, "align-loops=") ||
1714 strstart(orig_opt, "align-jumps=") ||
1715 strstart(orig_opt, "align-functions=")) {
1716 fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
1717 } else if (strstart(orig_opt, "visibility=")) {
1718 const char *val = strchr(orig_opt, '=')+1;
1719 elf_visibility_tag_t visibility
1720 = get_elf_visibility_from_string(val);
1721 if (visibility == ELF_VISIBILITY_ERROR) {
1722 errorf(NULL, "invalid visibility '%s' specified", val);
1723 argument_errors = true;
1725 set_default_visibility(visibility);
1727 } else if (strstart(orig_opt, "message-length=")) {
1728 /* ignore: would only affect error message format */
1729 } else if (streq(orig_opt, "fast-math") ||
1730 streq(orig_opt, "fp-fast")) {
1731 firm_fp_model = fp_model_fast;
1732 } else if (streq(orig_opt, "fp-precise")) {
1733 firm_fp_model = fp_model_precise;
1734 } else if (streq(orig_opt, "fp-strict")) {
1735 firm_fp_model = fp_model_strict;
1736 } else if (streq(orig_opt, "help")) {
1737 fprintf(stderr, "warning: -fhelp is deprecated\n");
1738 help |= HELP_OPTIMIZATION;
1740 /* -f options which have an -fno- variant */
1741 char const *opt = orig_opt;
1742 bool truth_value = true;
1743 if (opt[0] == 'n' && opt[1] == 'o' && opt[2] == '-') {
1744 truth_value = false;
1748 if (streq(opt, "diagnostics-show-option")) {
1749 diagnostics_show_option = truth_value;
1750 } else if (streq(opt, "dollars-in-identifiers")) {
1751 allow_dollar_in_symbol = truth_value;
1752 } else if (streq(opt, "omit-frame-pointer")) {
1753 set_be_option(truth_value ? "omitfp" : "omitfp=no");
1754 } else if (streq(opt, "short-wchar")) {
1755 wchar_atomic_kind = truth_value ? ATOMIC_TYPE_USHORT
1757 } else if (streq(opt, "show-column")) {
1758 show_column = truth_value;
1759 } else if (streq(opt, "signed-char")) {
1760 char_is_signed = truth_value;
1761 } else if (streq(opt, "strength-reduce")) {
1762 /* does nothing, for gcc compatibility (even gcc does
1763 * nothing for this switch anymore) */
1764 } else if (streq(opt, "syntax-only")) {
1765 mode = truth_value ? ParseOnly : CompileAssembleLink;
1766 } else if (streq(opt, "unsigned-char")) {
1767 char_is_signed = !truth_value;
1768 } else if (streq(opt, "freestanding")) {
1769 freestanding = truth_value;
1770 } else if (streq(opt, "hosted")) {
1771 freestanding = !truth_value;
1772 } else if (streq(opt, "profile-generate")) {
1773 profile_generate = truth_value;
1774 } else if (streq(opt, "profile-use")) {
1775 profile_use = truth_value;
1776 } else if (!truth_value &&
1777 streq(opt, "asynchronous-unwind-tables")) {
1778 /* nothing todo, a gcc feature which we do not support
1779 * anyway was deactivated */
1780 } else if (streq(opt, "verbose-asm")) {
1781 /* ignore: we always print verbose assembler */
1782 } else if (streq(opt, "jump-tables") ||
1783 streq(opt, "expensive-optimizations") ||
1784 streq(opt, "common") ||
1785 streq(opt, "optimize-sibling-calls") ||
1786 streq(opt, "align-loops") ||
1787 streq(opt, "align-jumps") ||
1788 streq(opt, "align-functions") ||
1789 streq(opt, "PIC") ||
1790 streq(opt, "stack-protector") ||
1791 streq(opt, "stack-protector-all")) {
1792 fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
1794 int res = firm_option(orig_opt);
1796 errorf(NULL, "unknown Firm option '-f%s'", orig_opt);
1797 argument_errors = true;
1802 } else if (option[0] == 'b') {
1804 GET_ARG_AFTER(opt, "-b");
1806 if (streq(opt, "help")) {
1807 fprintf(stderr, "warning: -bhelp is deprecated (use --help-firm)\n");
1810 int res = be_parse_arg(opt);
1812 errorf(NULL, "unknown Firm backend option '-b %s'", opt);
1813 argument_errors = true;
1814 } else if (strstart(opt, "isa=")) {
1815 strncpy(cpu_arch, opt, sizeof(cpu_arch));
1818 } else if (option[0] == 'W') {
1819 if (strstart(option + 1, "p,")) {
1820 // pass options directly to the preprocessor
1822 GET_ARG_AFTER(opt, "-Wp,");
1823 add_flag(&cppflags_obst, "-Wp,%s", opt);
1824 } else if (strstart(option + 1, "l,")) {
1825 // pass options directly to the linker
1827 GET_ARG_AFTER(opt, "-Wl,");
1828 add_flag(&ldflags_obst, "-Wl,%s", opt);
1829 } else if (streq(option + 1, "no-trigraphs")
1830 || streq(option + 1, "undef")
1831 || streq(option + 1, "missing-include-dirs")
1832 || streq(option + 1, "endif-labels")) {
1833 add_flag(&cppflags_obst, "%s", arg);
1834 } else if (streq(option+1, "init-self")) {
1835 /* ignored (same as gcc does) */
1836 } else if (streq(option+1, "format-y2k")
1837 || streq(option+1, "format-security")
1838 || streq(option+1, "old-style-declaration")
1839 || streq(option+1, "type-limits")) {
1840 /* ignore (gcc compatibility) */
1842 set_warning_opt(&option[1]);
1844 } else if (option[0] == 'm') {
1849 GET_ARG_AFTER(opt, "-m");
1850 if (strstart(opt, "target=")) {
1851 GET_ARG_AFTER(opt, "-mtarget=");
1852 if (!parse_target_triple(opt)) {
1853 argument_errors = true;
1855 const char *isa = setup_target_machine();
1856 strncpy(cpu_arch, isa, sizeof(cpu_arch));
1857 target_triple = opt;
1859 } else if (strstart(opt, "triple=")) {
1860 GET_ARG_AFTER(opt, "-mtriple=");
1861 if (!parse_target_triple(opt)) {
1862 argument_errors = true;
1864 const char *isa = setup_target_machine();
1865 strncpy(cpu_arch, isa, sizeof(cpu_arch));
1866 target_triple = opt;
1868 } else if (strstart(opt, "arch=")) {
1869 GET_ARG_AFTER(opt, "-march=");
1870 snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
1871 int res = be_parse_arg(arch_opt);
1872 snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
1873 res &= be_parse_arg(arch_opt);
1876 errorf(NULL, "unknown architecture '%s'", arch_opt);
1877 argument_errors = true;
1879 } else if (strstart(opt, "tune=")) {
1880 GET_ARG_AFTER(opt, "-mtune=");
1881 snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
1882 int res = be_parse_arg(arch_opt);
1884 argument_errors = true;
1885 } else if (strstart(opt, "cpu=")) {
1886 GET_ARG_AFTER(opt, "-mcpu=");
1887 snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
1888 int res = be_parse_arg(arch_opt);
1890 argument_errors = true;
1891 } else if (strstart(opt, "fpmath=")) {
1892 GET_ARG_AFTER(opt, "-mfpmath=");
1893 if (streq(opt, "387"))
1895 else if (streq(opt, "sse"))
1898 errorf(NULL, "option -mfpmath supports only 387 or sse");
1899 argument_errors = true;
1901 if (!argument_errors) {
1902 snprintf(arch_opt, sizeof(arch_opt), "%s-fpunit=%s", cpu_arch, opt);
1903 int res = be_parse_arg(arch_opt);
1905 argument_errors = true;
1907 } else if (strstart(opt, "preferred-stack-boundary=")) {
1908 GET_ARG_AFTER(opt, "-mpreferred-stack-boundary=");
1909 snprintf(arch_opt, sizeof(arch_opt), "%s-stackalign=%s", cpu_arch, opt);
1910 int res = be_parse_arg(arch_opt);
1912 argument_errors = true;
1913 } else if (streq(opt, "rtd")) {
1914 default_calling_convention = CC_STDCALL;
1915 } else if (strstart(opt, "regparm=")) {
1916 errorf(NULL, "regparm convention not supported yet");
1917 argument_errors = true;
1918 } else if (streq(opt, "soft-float")) {
1919 add_flag(&ldflags_obst, "-msoft-float");
1920 snprintf(arch_opt, sizeof(arch_opt), "%s-fpunit=softfloat", cpu_arch);
1921 int res = be_parse_arg(arch_opt);
1923 argument_errors = true;
1924 } else if (streq(opt, "sse2")) {
1925 /* ignore for now, our x86 backend always uses sse when
1926 * sse is requested */
1928 long int value = strtol(opt, NULL, 10);
1930 errorf(NULL, "wrong option '-m %s'", opt);
1931 argument_errors = true;
1932 } else if (value != 16 && value != 32 && value != 64) {
1933 errorf(NULL, "option -m supports only 16, 32 or 64");
1934 argument_errors = true;
1936 unsigned machine_size = (unsigned)value;
1937 /* TODO: choose/change backend based on this */
1938 add_flag(&cppflags_obst, "-m%u", machine_size);
1939 add_flag(&asflags_obst, "-m%u", machine_size);
1940 add_flag(&ldflags_obst, "-m%u", machine_size);
1943 } else if (streq(option, "pg")) {
1944 set_be_option("gprof");
1945 add_flag(&ldflags_obst, "-pg");
1946 } else if (streq(option, "ansi")) {
1947 standard = STANDARD_ANSI;
1948 } else if (streq(option, "pedantic")) {
1949 fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg);
1950 } else if (strstart(option, "std=")) {
1951 const char *const o = &option[4];
1953 streq(o, "c++") ? STANDARD_CXX98 :
1954 streq(o, "c++98") ? STANDARD_CXX98 :
1955 streq(o, "c11") ? STANDARD_C11 :
1956 streq(o, "c1x") ? STANDARD_C11 : // deprecated
1957 streq(o, "c89") ? STANDARD_C89 :
1958 streq(o, "c90") ? STANDARD_C89 :
1959 streq(o, "c99") ? STANDARD_C99 :
1960 streq(o, "c9x") ? STANDARD_C99 : // deprecated
1961 streq(o, "gnu++98") ? STANDARD_GNUXX98 :
1962 streq(o, "gnu11") ? STANDARD_GNU11 :
1963 streq(o, "gnu1x") ? STANDARD_GNU11 : // deprecated
1964 streq(o, "gnu89") ? STANDARD_GNU89 :
1965 streq(o, "gnu99") ? STANDARD_GNU99 :
1966 streq(o, "gnu9x") ? STANDARD_GNU99 : // deprecated
1967 streq(o, "iso9899:1990") ? STANDARD_C89 :
1968 streq(o, "iso9899:199409") ? STANDARD_C89AMD1 :
1969 streq(o, "iso9899:1999") ? STANDARD_C99 :
1970 streq(o, "iso9899:199x") ? STANDARD_C99 : // deprecated
1971 streq(o, "iso9899:2011") ? STANDARD_C11 :
1972 (fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg), standard);
1973 } else if (streq(option, "version")) {
1974 print_cparser_version();
1975 return EXIT_SUCCESS;
1976 } else if (streq(option, "dumpversion")) {
1977 /* gcc compatibility option */
1978 print_cparser_version_short();
1979 return EXIT_SUCCESS;
1980 } else if (strstart(option, "print-file-name=")) {
1981 GET_ARG_AFTER(print_file_name_file, "-print-file-name=");
1982 } else if (option[0] == '-') {
1983 /* double dash option */
1985 if (streq(option, "gcc")) {
1986 features_on |= _GNUC;
1987 features_off &= ~_GNUC;
1988 } else if (streq(option, "no-gcc")) {
1989 features_on &= ~_GNUC;
1990 features_off |= _GNUC;
1991 } else if (streq(option, "ms")) {
1993 features_off &= ~_MS;
1994 } else if (streq(option, "no-ms")) {
1995 features_on &= ~_MS;
1996 features_off |= _MS;
1997 } else if (streq(option, "strict")) {
1999 } else if (streq(option, "benchmark")) {
2000 mode = BenchmarkParser;
2001 } else if (streq(option, "print-ast")) {
2003 } else if (streq(option, "print-implicit-cast")) {
2004 print_implicit_casts = true;
2005 } else if (streq(option, "print-parenthesis")) {
2006 print_parenthesis = true;
2007 } else if (streq(option, "print-fluffy")) {
2009 } else if (streq(option, "print-compound-sizes")) {
2010 mode = PrintCompoundSizes;
2011 } else if (streq(option, "print-jna")) {
2013 } else if (streq(option, "jna-limit")) {
2016 errorf(NULL, "expected argument after '--jna-limit'");
2017 argument_errors = true;
2020 jna_limit_output(argv[i]);
2021 } else if (streq(option, "jna-libname")) {
2024 errorf(NULL, "expected argument after '--jna-libname'");
2025 argument_errors = true;
2028 jna_set_libname(argv[i]);
2029 } else if (streq(option, "external-pp")) {
2030 if (i+1 < argc && argv[i+1][0] != '-') {
2032 external_preprocessor = argv[i+1];
2034 external_preprocessor = PREPROCESSOR;
2036 } else if (streq(option, "no-external-pp")) {
2037 external_preprocessor = NULL;
2038 } else if (streq(option, "time")) {
2040 print_timing = true;
2041 } else if (streq(option, "statev")) {
2043 produce_statev = true;
2044 } else if (strstart(option, "filtev=")) {
2045 GET_ARG_AFTER(filtev, "--filtev=");
2046 } else if (streq(option, "version")) {
2047 print_cparser_version();
2048 return EXIT_SUCCESS;
2049 } else if (streq(option, "help")) {
2051 } else if (streq(option, "help-parser")) {
2052 help |= HELP_PARSER;
2053 } else if (streq(option, "help-warnings")) {
2054 help |= HELP_WARNINGS;
2055 } else if (streq(option, "help-codegen")) {
2056 help |= HELP_CODEGEN;
2057 } else if (streq(option, "help-linker")) {
2058 help |= HELP_LINKER;
2059 } else if (streq(option, "help-optimization")) {
2060 help |= HELP_OPTIMIZATION;
2061 } else if (streq(option, "help-language-tools")) {
2062 help |= HELP_LANGUAGETOOLS;
2063 } else if (streq(option, "help-debug")) {
2065 } else if (streq(option, "help-firm")) {
2067 } else if (streq(option, "help-all")) {
2069 } else if (streq(option, "dump-function")) {
2072 errorf(NULL, "expected argument after '--dump-function'");
2073 argument_errors = true;
2076 dumpfunction = argv[i];
2078 } else if (streq(option, "export-ir")) {
2079 mode = CompileExportIR;
2080 } else if (streq(option, "unroll-loops")) {
2081 /* ignore (gcc compatibility) */
2083 errorf(NULL, "unknown argument '%s'", arg);
2084 argument_errors = true;
2087 errorf(NULL, "unknown argument '%s'", arg);
2088 argument_errors = true;
2091 compilation_unit_type_t type = forced_unittype;
2092 if (type == COMPILATION_UNIT_AUTODETECT) {
2093 if (streq(arg, "-")) {
2094 /* - implicitly means C source file */
2095 type = COMPILATION_UNIT_C;
2097 const char *suffix = strrchr(arg, '.');
2098 /* Ensure there is at least one char before the suffix */
2099 if (suffix != NULL && suffix != arg) {
2102 streq(suffix, "S") ? COMPILATION_UNIT_ASSEMBLER :
2103 streq(suffix, "a") ? COMPILATION_UNIT_OBJECT :
2104 streq(suffix, "c") ? COMPILATION_UNIT_C :
2105 streq(suffix, "i") ? COMPILATION_UNIT_PREPROCESSED_C :
2106 streq(suffix, "C") ? COMPILATION_UNIT_CXX :
2107 streq(suffix, "cc") ? COMPILATION_UNIT_CXX :
2108 streq(suffix, "cp") ? COMPILATION_UNIT_CXX :
2109 streq(suffix, "cpp") ? COMPILATION_UNIT_CXX :
2110 streq(suffix, "CPP") ? COMPILATION_UNIT_CXX :
2111 streq(suffix, "cxx") ? COMPILATION_UNIT_CXX :
2112 streq(suffix, "c++") ? COMPILATION_UNIT_CXX :
2113 streq(suffix, "ii") ? COMPILATION_UNIT_PREPROCESSED_CXX :
2114 streq(suffix, "h") ? COMPILATION_UNIT_C :
2115 streq(suffix, "ir") ? COMPILATION_UNIT_IR :
2116 streq(suffix, "o") ? COMPILATION_UNIT_OBJECT :
2117 streq(suffix, "s") ? COMPILATION_UNIT_PREPROCESSED_ASSEMBLER :
2118 streq(suffix, "so") ? COMPILATION_UNIT_OBJECT :
2119 COMPILATION_UNIT_OBJECT; /* gcc behavior: unknown file extension means object file */
2124 compilation_unit_t *entry = OALLOCZ(&file_obst, compilation_unit_t);
2128 if (last_unit != NULL) {
2129 last_unit->next = entry;
2137 if (help != HELP_NONE) {
2138 print_help(argv[0], help);
2139 return !argument_errors;
2142 if (print_file_name_file != NULL) {
2143 print_file_name(print_file_name_file);
2144 return EXIT_SUCCESS;
2146 if (units == NULL) {
2147 errorf(NULL, "no input files specified");
2148 argument_errors = true;
2151 if (argument_errors) {
2153 return EXIT_FAILURE;
2156 /* apply some effects from switches */
2157 c_mode |= features_on;
2158 c_mode &= ~features_off;
2159 if (profile_generate) {
2160 add_flag(&ldflags_obst, "-lfirmprof");
2161 set_be_option("profilegenerate");
2164 set_be_option("profileuse");
2167 init_symbol_table();
2168 init_types_and_adjust();
2171 if (c_mode & _CXX) {
2172 init_wchar_types(ATOMIC_TYPE_WCHAR_T);
2174 init_wchar_types(wchar_atomic_kind);
2176 init_preprocessor();
2185 char outnamebuf[4096];
2186 if (outname == NULL) {
2187 const char *filename = units->name;
2190 case BenchmarkParser:
2194 case PrintCompoundSizes:
2195 case PreprocessOnly:
2200 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".s");
2201 outname = outnamebuf;
2203 case CompileAssemble:
2204 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".o");
2205 outname = outnamebuf;
2208 get_output_name(outnamebuf, sizeof(outnamebuf), dumpfunction,
2210 outname = outnamebuf;
2212 case CompileExportIR:
2213 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".ir");
2214 outname = outnamebuf;
2216 case CompileAssembleLink:
2217 if (firm_is_windows_os(target_machine)) {
2226 assert(outname != NULL);
2229 if (streq(outname, "-")) {
2232 out = fopen(outname, "w");
2234 source_position_t const pos = { outname, 0, 0, 0 };
2235 errorf(&pos, "could not open for writing: %s", strerror(errno));
2236 return EXIT_FAILURE;
2240 if (produce_statev && units != NULL) {
2241 /* attempt to guess a good name for the file */
2242 const char *first_cup = units->name;
2243 if (first_cup != NULL) {
2244 const char *dot = strrchr(first_cup, '.');
2245 const char *pos = dot ? dot : first_cup + strlen(first_cup);
2246 char buf[pos-first_cup+1];
2247 strncpy(buf, first_cup, pos-first_cup);
2248 buf[pos-first_cup] = '\0';
2250 stat_ev_begin(buf, filtev);
2254 int result = compilation_loop(mode, units, standard, out);
2255 if (stat_ev_enabled) {
2259 if (result != EXIT_SUCCESS) {
2265 /* link program file */
2266 if (mode == CompileAssembleLink) {
2267 int result = link_program(units);
2268 if (result != EXIT_SUCCESS) {
2276 timer_term(print_timing ? stderr : NULL);
2279 obstack_free(&cppflags_obst, NULL);
2280 obstack_free(&ldflags_obst, NULL);
2281 obstack_free(&asflags_obst, NULL);
2282 obstack_free(&file_obst, NULL);
2289 exit_preprocessor();
2293 exit_symbol_table();
2294 return EXIT_SUCCESS;