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>
63 #include "preprocessor.h"
66 #include "type_hash.h"
70 #include "diagnostic.h"
71 #include "lang_features.h"
72 #include "driver/firm_opt.h"
73 #include "driver/firm_timing.h"
74 #include "driver/firm_machine.h"
75 #include "adt/error.h"
76 #include "adt/strutil.h"
77 #include "adt/array.h"
78 #include "wrappergen/write_fluffy.h"
79 #include "wrappergen/write_jna.h"
88 #define PREPROCESSOR "gcc -E -U__STRICT_ANSI__"
90 #define PREPROCESSOR "cpp -U__STRICT_ANSI__"
99 #define ASSEMBLER "gcc -c -xassembler"
102 unsigned int c_mode = _C89 | _C99 | _GNUC;
103 bool byte_order_big_endian = false;
104 bool strict_mode = false;
105 bool enable_main_collect2_hack = false;
106 bool freestanding = false;
107 unsigned architecture_modulo_shift = 0;
109 static bool char_is_signed = true;
110 static atomic_type_kind_t wchar_atomic_kind = ATOMIC_TYPE_INT;
111 static unsigned features_on = 0;
112 static unsigned features_off = 0;
113 static const char *dumpfunction = NULL;
114 static struct obstack file_obst;
115 static const char *external_preprocessor = PREPROCESSOR;
117 static machine_triple_t *target_machine;
118 static const char *target_triple;
120 static struct obstack cppflags_obst;
121 static struct obstack ldflags_obst;
122 static struct obstack asflags_obst;
123 static char dep_target[1024];
124 static const char *outname;
125 static bool define_intmax_types;
126 static const char *input_encoding;
128 typedef enum lang_standard_t {
129 STANDARD_DEFAULT, /* gnu99 (for C, GCC does gnu89) or gnu++98 (for C++) */
130 STANDARD_ANSI, /* ISO C90 (for C) or ISO C++ 1998 (for C++) */
131 STANDARD_C89, /* ISO C90 (sic) */
132 STANDARD_C89AMD1, /* ISO C90 as modified in amendment 1 */
133 STANDARD_C99, /* ISO C99 */
134 STANDARD_GNU89, /* ISO C90 plus GNU extensions (including some C99) */
135 STANDARD_GNU99, /* ISO C99 plus GNU extensions */
136 STANDARD_CXX98, /* ISO C++ 1998 plus amendments */
137 STANDARD_GNUXX98 /* ISO C++ 1998 plus amendments and GNU extensions */
140 typedef enum compilation_unit_type_t {
141 COMPILATION_UNIT_AUTODETECT,
143 COMPILATION_UNIT_PREPROCESSED_C,
144 COMPILATION_UNIT_CXX,
145 COMPILATION_UNIT_PREPROCESSED_CXX,
146 COMPILATION_UNIT_AST,
147 COMPILATION_UNIT_INTERMEDIATE_REPRESENTATION,
148 COMPILATION_UNIT_ASSEMBLER,
149 COMPILATION_UNIT_PREPROCESSED_ASSEMBLER,
150 COMPILATION_UNIT_OBJECT,
152 COMPILATION_UNIT_UNKNOWN
153 } compilation_unit_type_t;
155 typedef struct compilation_unit_t compilation_unit_t;
156 struct compilation_unit_t {
157 const char *name; /**< filename or "-" for stdin */
158 FILE *input; /**< input (NULL if not opened yet) */
160 compilation_unit_type_t type;
161 lang_standard_t standard;
162 translation_unit_t *ast;
164 compilation_unit_t *next;
167 static char **temp_files;
169 static void get_output_name(char *buf, size_t buflen, const char *inputname,
172 if (inputname == NULL)
175 char const *const last_slash = strrchr(inputname, '/');
176 char const *const filename =
177 last_slash != NULL ? last_slash + 1 : inputname;
178 char const *const last_dot = strrchr(filename, '.');
179 char const *const name_end =
180 last_dot != NULL ? last_dot : strchr(filename, '\0');
182 int const len = snprintf(buf, buflen, "%.*s%s",
183 (int)(name_end - filename), filename, newext);
185 if (len < 0 || buflen <= (size_t)len)
187 if (buflen <= (size_t)len)
189 panic("filename too long");
192 static bool close_input(compilation_unit_t *unit)
196 if (unit->input == stdin) {
198 } else if (unit->input_is_pipe) {
199 res = pclose(unit->input) == EXIT_SUCCESS;
209 static void print_error_summary(void)
211 if (error_count > 0) {
212 /* parsing failed because of errors */
213 fprintf(stderr, "%u error(s), %u warning(s)\n", error_count,
215 } else if (warning_count > 0) {
216 fprintf(stderr, "%u warning(s)\n", warning_count);
220 static void do_parsing(compilation_unit_t *unit)
222 ir_timer_t *t_parsing = ir_timer_new();
223 timer_register(t_parsing, "Frontend: Parsing");
224 timer_push(t_parsing);
228 switch_pp_input(unit->input, unit->name);
230 translation_unit_t *ast = finish_parsing();
232 check_unclosed_conditionals();
234 bool res = close_input(unit);
236 print_error_summary();
238 unit->type = COMPILATION_UNIT_AST;
239 unit->parse_errors = error_count > 0 || !res;
240 timer_pop(t_parsing);
243 static void add_flag(struct obstack *obst, const char *format, ...)
248 va_start(ap, format);
252 vsnprintf(buf, sizeof(buf), format, ap);
255 obstack_1grow(obst, ' ');
257 obstack_1grow(obst, '"');
258 obstack_grow(obst, buf, len);
259 obstack_1grow(obst, '"');
261 /* escape stuff... */
262 for (char *c = buf; *c != '\0'; ++c) {
280 obstack_1grow(obst, '\\');
283 obstack_1grow(obst, *c);
290 static const char *type_to_string(type_t *type)
292 assert(type->kind == TYPE_ATOMIC);
293 return get_atomic_kind_name(type->atomic.akind);
296 static char const* str_lang_standard(lang_standard_t const standard)
299 case STANDARD_C89: return "c89";
300 case STANDARD_C89AMD1: return "iso9899:199409";
301 case STANDARD_C99: return "c99";
302 case STANDARD_GNU89: return "gnu89";
303 case STANDARD_GNU99: return "gnu99";
304 case STANDARD_CXX98: return "c++98";
305 case STANDARD_GNUXX98: return "gnu++98";
306 case STANDARD_ANSI: break;
307 case STANDARD_DEFAULT: break;
309 panic("invalid standard");
312 static bool run_external_preprocessor(compilation_unit_t *unit)
314 static const char *common_flags = NULL;
316 if (common_flags == NULL) {
317 obstack_1grow(&cppflags_obst, '\0');
318 const char *flags = obstack_finish(&cppflags_obst);
320 /* setup default defines */
321 add_flag(&cppflags_obst, "-U__WCHAR_TYPE__");
322 add_flag(&cppflags_obst, "-D__WCHAR_TYPE__=%s", type_to_string(type_wchar_t));
323 add_flag(&cppflags_obst, "-U__SIZE_TYPE__");
324 add_flag(&cppflags_obst, "-D__SIZE_TYPE__=%s", type_to_string(type_size_t));
326 add_flag(&cppflags_obst, "-U__VERSION__");
327 add_flag(&cppflags_obst, "-D__VERSION__=\"%s\"", cparser_REVISION);
329 if (define_intmax_types) {
330 add_flag(&cppflags_obst, "-U__INTMAX_TYPE__");
331 add_flag(&cppflags_obst, "-D__INTMAX_TYPE__=%s", type_to_string(type_intmax_t));
332 add_flag(&cppflags_obst, "-U__UINTMAX_TYPE__");
333 add_flag(&cppflags_obst, "-D__UINTMAX_TYPE__=%s", type_to_string(type_uintmax_t));
336 if (flags[0] != '\0') {
337 size_t len = strlen(flags);
338 obstack_1grow(&cppflags_obst, ' ');
339 obstack_grow(&cppflags_obst, flags, len);
341 obstack_1grow(&cppflags_obst, '\0');
342 common_flags = obstack_finish(&cppflags_obst);
345 assert(obstack_object_size(&cppflags_obst) == 0);
347 const char *preprocessor = getenv("CPARSER_PP");
348 if (preprocessor != NULL) {
349 obstack_printf(&cppflags_obst, "%s ", preprocessor);
351 if (target_triple != NULL)
352 obstack_printf(&cppflags_obst, "%s-", target_triple);
353 obstack_printf(&cppflags_obst, "%s", external_preprocessor);
357 switch (unit->type) {
358 case COMPILATION_UNIT_C: lang = "c"; break;
359 case COMPILATION_UNIT_CXX: lang = "c++"; break;
360 case COMPILATION_UNIT_ASSEMBLER: lang = "assembler-with-cpp"; break;
361 default: lang = NULL; break;
364 add_flag(&cppflags_obst, "-x%s", lang);
366 add_flag(&cppflags_obst, "-std=%s", str_lang_standard(unit->standard));
368 obstack_printf(&cppflags_obst, "%s", common_flags);
370 /* handle dependency generation */
371 if (dep_target[0] != '\0') {
372 add_flag(&cppflags_obst, "-MF");
373 add_flag(&cppflags_obst, dep_target);
374 if (outname != NULL) {
375 add_flag(&cppflags_obst, "-MQ");
376 add_flag(&cppflags_obst, outname);
379 assert(unit->input == NULL);
380 add_flag(&cppflags_obst, unit->name);
381 obstack_1grow(&cppflags_obst, '\0');
383 char *commandline = obstack_finish(&cppflags_obst);
387 FILE *f = popen(commandline, "r");
389 fprintf(stderr, "invoking preprocessor failed\n");
392 /* we do not really need that anymore */
393 obstack_free(&cppflags_obst, commandline);
396 unit->input_is_pipe = true;
397 switch (unit->type) {
398 case COMPILATION_UNIT_ASSEMBLER:
399 unit->type = COMPILATION_UNIT_PREPROCESSED_ASSEMBLER;
401 case COMPILATION_UNIT_C:
402 unit->type = COMPILATION_UNIT_PREPROCESSED_C;
404 case COMPILATION_UNIT_CXX:
405 unit->type = COMPILATION_UNIT_PREPROCESSED_CXX;
408 unit->type = COMPILATION_UNIT_UNKNOWN;
415 static void assemble(const char *out, const char *in)
417 obstack_1grow(&asflags_obst, '\0');
418 const char *flags = obstack_finish(&asflags_obst);
420 const char *assembler = getenv("CPARSER_AS");
421 if (assembler != NULL) {
422 obstack_printf(&asflags_obst, "%s", assembler);
424 if (target_triple != NULL)
425 obstack_printf(&asflags_obst, "%s-", target_triple);
426 obstack_printf(&asflags_obst, "%s", ASSEMBLER);
428 if (flags[0] != '\0')
429 obstack_printf(&asflags_obst, " %s", flags);
431 obstack_printf(&asflags_obst, " %s -o %s", in, out);
432 obstack_1grow(&asflags_obst, '\0');
434 char *commandline = obstack_finish(&asflags_obst);
438 int err = system(commandline);
439 if (err != EXIT_SUCCESS) {
440 fprintf(stderr, "assembler reported an error\n");
443 obstack_free(&asflags_obst, commandline);
446 static void print_file_name(const char *file)
448 add_flag(&ldflags_obst, "-print-file-name=%s", file);
450 obstack_1grow(&ldflags_obst, '\0');
451 const char *flags = obstack_finish(&ldflags_obst);
453 /* construct commandline */
454 const char *linker = getenv("CPARSER_LINK");
455 if (linker != NULL) {
456 obstack_printf(&ldflags_obst, "%s ", linker);
458 if (target_triple != NULL)
459 obstack_printf(&ldflags_obst, "%s-", target_triple);
460 obstack_printf(&ldflags_obst, "%s ", LINKER);
462 obstack_printf(&ldflags_obst, "%s ", linker);
463 obstack_printf(&ldflags_obst, "%s", flags);
464 obstack_1grow(&ldflags_obst, '\0');
466 char *commandline = obstack_finish(&ldflags_obst);
470 int err = system(commandline);
471 if (err != EXIT_SUCCESS) {
472 fprintf(stderr, "linker reported an error\n");
475 obstack_free(&ldflags_obst, commandline);
478 static const char *try_dir(const char *dir)
482 if (access(dir, R_OK | W_OK | X_OK) == 0)
487 static const char *get_tempdir(void)
489 static const char *tmpdir = NULL;
495 tmpdir = try_dir(getenv("TMPDIR"));
497 tmpdir = try_dir(getenv("TMP"));
499 tmpdir = try_dir(getenv("TEMP"));
503 tmpdir = try_dir(P_tmpdir);
507 tmpdir = try_dir("/var/tmp");
509 tmpdir = try_dir("/usr/tmp");
511 tmpdir = try_dir("/tmp");
520 /* cheap and nasty mkstemp replacement */
521 static int mkstemp(char *templ)
524 return open(templ, O_RDWR|O_CREAT|O_EXCL|O_BINARY, 0600);
529 * custom version of tmpnam, which: writes to an obstack, emits no warnings
530 * during linking (like glibc/gnu ld do for tmpnam)...
532 static FILE *make_temp_file(const char *prefix, const char **name_result)
534 const char *tempdir = get_tempdir();
535 assert(obstack_object_size(&file_obst) == 0);
536 obstack_printf(&file_obst, "%s/%sXXXXXX", tempdir, prefix);
537 obstack_1grow(&file_obst, '\0');
539 char *name = obstack_finish(&file_obst);
540 int fd = mkstemp(name);
542 fprintf(stderr, "could not create temporary file: %s\n",
546 FILE *out = fdopen(fd, "w");
548 fprintf(stderr, "could not open temporary file as FILE*\n");
552 ARR_APP1(char*, temp_files, name);
557 static void free_temp_files(void)
559 size_t n_temp_files = ARR_LEN(temp_files);
561 for (i = 0; i < n_temp_files; ++i) {
562 char *file = temp_files[i];
565 DEL_ARR_F(temp_files);
569 typedef enum compile_mode_t {
583 static void usage(const char *argv0)
585 fprintf(stderr, "Usage %s [options] input [-o output]\n", argv0);
588 static void print_cparser_version(void)
590 printf("cparser (%s) using libFirm (%u.%u",
591 cparser_REVISION, ir_get_version_major(),
592 ir_get_version_minor());
594 const char *revision = ir_get_version_revision();
595 if (revision[0] != 0) {
597 fputs(revision, stdout);
600 const char *build = ir_get_version_build();
603 fputs(build, stdout);
606 puts("This is free software; see the source for copying conditions. There is NO\n"
607 "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n");
610 static void print_cparser_version_short(void)
612 puts(cparser_REVISION);
615 static void print_help_basic(const char *argv0)
619 put_help("--help", "Display this information");
620 put_help("--version", "Display compiler version");
621 put_help("--help-parser", "Display information about parser options");
622 put_help("--help-warnings", "Display information about warning options");
623 put_help("--help-codegen", "Display information about code-generation options");
624 put_help("--help-optimization", "Display information about optimization options");
625 put_help("--help-linker", "Display information about linker options");
626 put_help("--help-language-tools", "Display information about language tools options");
627 put_help("--help-debug", "Display information about compiler debugging options");
628 put_help("--help-firm", "Display information about direct firm options");
629 put_help("--help-all", "Display information about all options");
630 put_help("-c", "Compile and assemble but do not link");
631 put_help("-E", "Preprocess only");
632 put_help("-S", "Compile but do not assembler or link");
633 put_help("-o", "Specify output file");
634 put_help("-v", "Verbose output (show invocation of sub-processes)");
635 put_help("-x", "Force input language:");
636 put_choice("c", "C");
637 put_choice("c++", "C++");
638 put_choice("assembler", "Assembler (no preprocessing)");
639 put_choice("assembler-with-cpp", "Assembler with preprocessing");
640 put_choice("none", "Autodetection");
641 put_help("-pipe", "Ignored (gcc compatibility)");
644 static void print_help_preprocessor(void)
646 put_help("-nostdinc", "Do not search standard system include directories");
647 put_help("-trigraphs", "Support ISO C trigraphs");
648 put_help("-isystem", "");
649 put_help("-include", "");
650 put_help("-I PATH", "");
651 put_help("-D SYMBOL[=value]", "");
652 put_help("-U SYMBOL", "");
653 put_help("-Wp,OPTION", "Pass option directly to preprocessor");
656 put_help("-MMD", "");
664 static void print_help_parser(void)
666 put_help("-finput-charset=CHARSET", "Select encoding of input files");
667 put_help("-fmessage-length=LEN", "Ignored (gcc compatibility)");
668 put_help("-fshort-wchar", "Type \"wchar_t\" is unsigned short instead of int");
669 put_help("-fshow-column", "Show the column number in diagnostic messages");
670 put_help("-fsigned-char", "Type \"char\" is a signed type");
671 put_help("-funsigned-char", "Type \"char\" is an unsigned type");
672 put_help("--ms", "Enable msvc extensions");
673 put_help("--no-ms", "Disable msvc extensions");
674 put_help("--gcc", "Enable gcc extensions");
675 put_help("--no-gcc", "Disable gcc extensions");
676 put_help("-std=STANDARD", "Specify language standard:");
677 put_choice("c99", "ISO C99 standard");
678 put_choice("c89", "ISO C89 standard");
679 put_choice("c90", "Same as -std=c89");
680 put_choice("c9x", "Deprecated");
681 put_choice("c++", "ISO C++ 98");
682 put_choice("c++98", "ISO C++ 98");
683 put_choice("gnu99", "ISO C99 + GNU extensions (default)");
684 put_choice("gnu89", "ISO C89 + GNU extensions");
685 put_choice("gnu9x", "Deprecated");
686 put_choice("iso9899:1990", "ISO C89");
687 put_choice("iso9899:199409", "ISO C90");
688 put_choice("iso9899:1999", "ISO C99");
689 put_choice("iso9899:199x", "Deprecated");
690 put_help("-pedantic", "Ignored (gcc compatibility)");
691 put_help("-ansi", "-std=c90 (for C) or -std=c++98 (for C++)");
692 put_help("--strict", "Enable strict conformance checking");
695 static void print_help_warnings(void)
697 put_help("-f[no-]diagnostics-show-option", "Show the switch, which controls a warning, after each warning");
698 put_help("-w", "Disable all warnings");
699 put_help("-Wno-trigraphs", "Warn if input contains trigraphs");
700 put_help("-Wundef", "Warn if an undefined macro is used in an #if");
701 put_help("-Wmissing-include-dirs", "Warn about missing user-specified include directories");
702 put_help("-Wendif-labels", "Warn about stray text after #elif and #endif");
703 put_help("-Winit-self", "Ignored (gcc compatibility)");
704 put_help("-Wformat-y2k", "Ignored (gcc compatibility)");
705 put_help("-Wformat-security", "Ignored (gcc compatibility)");
706 put_help("-Wold-style-declaration", "Ignored (gcc compatibility)");
707 put_help("-Wtype-limits", "Ignored (gcc compatibility)");
708 print_warning_opt_help();
711 static void print_help_optimization(void)
713 put_help("-O LEVEL", "Select optimization level (0-4)");
714 firm_option_help(put_help);
715 put_help("-fexpensive-optimizations","Ignored (gcc compatibility)");
718 static void print_help_codegeneration(void)
720 put_help("-g", "Generate debug information");
721 put_help("-pg", "Instrument code for gnu gprof");
722 put_help("-fomit-frame-pointer", "Produce code without frame pointer where possible");
723 put_help("-ffreestanding", "Compile in freestanding mode (see ISO C standard)");
724 put_help("-fhosted", "Compile in hosted (not freestanding) mode");
725 put_help("-fprofile-generate", "Generate instrumented code to collect profile information");
726 put_help("-fprofile-use", "Use profile information generated by instrumented binaries");
727 put_help("-ffp-precise", "Precise floating point model");
728 put_help("-ffp-fast", "Imprecise floating point model");
729 put_help("-ffp-strict", "Strict floating point model");
730 put_help("-pthread", "Use pthread threading library");
731 put_help("-mtarget=TARGET", "Specify target architecture as CPU-manufacturer-OS triple");
732 put_help("-mtriple=TARGET", "Alias for -mtarget (clang compatibility)");
733 put_help("-march=ARCH", "");
734 put_help("-mtune=ARCH", "");
735 put_help("-mcpu=CPU", "");
736 put_help("-mfpmath=", "");
737 put_help("-mpreferred-stack-boundary=", "");
738 put_help("-mrtd", "");
739 put_help("-mregparm=", "Not supported yet");
740 put_help("-msoft-float", "Not supported yet");
741 put_help("-m32", "Generate 32bit code");
742 put_help("-m64", "Generate 64bit code");
743 put_help("-fverbose-asm", "Ignored (gcc compatibility)");
744 put_help("-fjump-tables", "Ignored (gcc compatibility)");
745 put_help("-fcommon", "Ignored (gcc compatibility)");
746 put_help("-foptimize-sibling-calls", "Ignored (gcc compatibility)");
747 put_help("-falign-loops", "Ignored (gcc compatibility)");
748 put_help("-falign-jumps", "Ignored (gcc compatibility)");
749 put_help("-falign-functions", "Ignored (gcc compatibility)");
750 put_help("-fPIC", "Ignored (gcc compatibility)");
751 put_help("-ffast-math", "Same as -ffp-fast (gcc compatibility)");
753 puts("\tMost of these options can be used with a no- prefix to disable them");
754 puts("\te.g. -fno-omit-frame-pointer");
757 static void print_help_linker(void)
759 put_help("-l LIBRARY", "");
760 put_help("-L PATH", "");
761 put_help("-s", "Do not produce symbol table and relocation information");
762 put_help("-shared", "Produce a shared library");
763 put_help("-static", "Produce statically linked binary");
764 put_help("-Wl,OPTION", "Pass option directly to linker");
767 static void print_help_debug(void)
769 put_help("--print-ast", "Preprocess, parse and print AST");
770 put_help("--print-implicit-cast", "");
771 put_help("--print-parenthesis", "");
772 put_help("--benchmark", "Preprocess and parse, produces no output");
773 put_help("--time", "Measure time of compiler passes");
774 put_help("--dump-function func", "Preprocess, parse and output vcg graph of func");
775 put_help("--export-ir", "Preprocess, parse and output compiler intermediate representation");
778 static void print_help_language_tools(void)
780 put_help("--print-fluffy", "Preprocess, parse and generate declarations for the fluffy language");
781 put_help("--print-jna", "Preprocess, parse and generate declarations for JNA");
782 put_help("--jna-limit filename", "");
783 put_help("--jna-libname name", "");
786 static void print_help_firm(void)
788 put_help("-bOPTION", "Directly pass option to libFirm backend");
789 int res = be_parse_arg("help");
797 HELP_PREPROCESSOR = 1 << 1,
798 HELP_PARSER = 1 << 2,
799 HELP_WARNINGS = 1 << 3,
800 HELP_OPTIMIZATION = 1 << 4,
801 HELP_CODEGEN = 1 << 5,
802 HELP_LINKER = 1 << 6,
803 HELP_LANGUAGETOOLS = 1 << 7,
810 static void print_help(const char *argv0, help_sections_t sections)
812 if (sections & HELP_BASIC) print_help_basic(argv0);
813 if (sections & HELP_PREPROCESSOR) print_help_preprocessor();
814 if (sections & HELP_PARSER) print_help_parser();
815 if (sections & HELP_WARNINGS) print_help_warnings();
816 if (sections & HELP_OPTIMIZATION) print_help_optimization();
817 if (sections & HELP_CODEGEN) print_help_codegeneration();
818 if (sections & HELP_LINKER) print_help_linker();
819 if (sections & HELP_LANGUAGETOOLS) print_help_language_tools();
820 if (sections & HELP_DEBUG) print_help_debug();
821 if (sections & HELP_FIRM) print_help_firm();
824 static void set_be_option(const char *arg)
826 int res = be_parse_arg(arg);
831 static compilation_unit_type_t get_unit_type_from_string(const char *string)
833 if (streq(string, "c") || streq(string, "c-header"))
834 return COMPILATION_UNIT_C;
835 if (streq(string, "c++") || streq(string, "c++-header"))
836 return COMPILATION_UNIT_CXX;
837 if (streq(string, "assembler"))
838 return COMPILATION_UNIT_PREPROCESSED_ASSEMBLER;
839 if (streq(string, "assembler-with-cpp"))
840 return COMPILATION_UNIT_ASSEMBLER;
841 if (streq(string, "none"))
842 return COMPILATION_UNIT_AUTODETECT;
844 return COMPILATION_UNIT_UNKNOWN;
847 static bool init_os_support(void)
849 wchar_atomic_kind = ATOMIC_TYPE_INT;
850 enable_main_collect2_hack = false;
851 define_intmax_types = false;
853 if (firm_is_unixish_os(target_machine)) {
854 set_create_ld_ident(create_name_linux_elf);
855 } else if (firm_is_darwin_os(target_machine)) {
856 set_create_ld_ident(create_name_macho);
857 define_intmax_types = true;
858 } else if (firm_is_windows_os(target_machine)) {
859 wchar_atomic_kind = ATOMIC_TYPE_USHORT;
860 enable_main_collect2_hack = true;
861 set_create_ld_ident(create_name_win32);
869 static bool parse_target_triple(const char *arg)
871 machine_triple_t *triple = firm_parse_machine_triple(arg);
872 if (triple == NULL) {
873 fprintf(stderr, "Target-triple is not in the form 'cpu_type-manufacturer-operating_system'\n");
876 target_machine = triple;
880 static unsigned decide_modulo_shift(unsigned type_size)
882 if (architecture_modulo_shift == 0)
884 if (type_size < architecture_modulo_shift)
885 return architecture_modulo_shift;
889 static bool is_ia32_cpu(const char *architecture)
891 return streq(architecture, "i386")
892 || streq(architecture, "i486")
893 || streq(architecture, "i586")
894 || streq(architecture, "i686")
895 || streq(architecture, "i786");
898 static const char *setup_isa_from_tripel(const machine_triple_t *machine)
900 const char *cpu = machine->cpu_type;
902 if (is_ia32_cpu(cpu)) {
904 } else if (streq(cpu, "x86_64")) {
906 } else if (streq(cpu, "sparc")) {
908 } else if (streq(cpu, "arm")) {
911 fprintf(stderr, "Unknown cpu '%s' in target-triple\n", cpu);
916 static const char *setup_target_machine(void)
918 if (!setup_firm_for_machine(target_machine))
921 const char *isa = setup_isa_from_tripel(target_machine);
932 * initialize cparser type properties based on a firm type
934 static void set_typeprops_type(atomic_type_properties_t* props, ir_type *type)
936 props->size = get_type_size_bytes(type);
937 props->alignment = get_type_alignment_bytes(type);
938 props->struct_alignment = props->alignment;
942 * Copy atomic type properties except the integer conversion rank
944 static void copy_typeprops(atomic_type_properties_t *dest,
945 const atomic_type_properties_t *src)
947 dest->size = src->size;
948 dest->alignment = src->alignment;
949 dest->struct_alignment = src->struct_alignment;
950 dest->flags = src->flags;
953 static void init_types_and_adjust(void)
955 const backend_params *be_params = be_get_backend_param();
956 unsigned machine_size = be_params->machine_size;
957 init_types(machine_size);
959 atomic_type_properties_t *props = atomic_type_properties;
961 /* adjust types as requested by target architecture */
962 ir_type *type_long_double = be_params->type_long_double;
963 if (type_long_double != NULL) {
964 set_typeprops_type(&props[ATOMIC_TYPE_LONG_DOUBLE], type_long_double);
965 atomic_modes[ATOMIC_TYPE_LONG_DOUBLE] = get_type_mode(type_long_double);
968 ir_type *type_long_long = be_params->type_long_long;
969 if (type_long_long != NULL)
970 set_typeprops_type(&props[ATOMIC_TYPE_LONGLONG], type_long_long);
972 ir_type *type_unsigned_long_long = be_params->type_unsigned_long_long;
973 if (type_unsigned_long_long != NULL)
974 set_typeprops_type(&props[ATOMIC_TYPE_ULONGLONG], type_unsigned_long_long);
976 /* operating system ABI specifics */
977 if (firm_is_darwin_os(target_machine)) {
978 if (machine_size == 32) {
979 props[ATOMIC_TYPE_LONGLONG].struct_alignment = 4;
980 props[ATOMIC_TYPE_ULONGLONG].struct_alignment = 4;
981 props[ATOMIC_TYPE_DOUBLE].struct_alignment = 4;
982 props[ATOMIC_TYPE_LONG_DOUBLE].size = 16;
983 props[ATOMIC_TYPE_LONG_DOUBLE].alignment = 16;
984 props[ATOMIC_TYPE_LONG_DOUBLE].struct_alignment = 16;
986 } else if (firm_is_windows_os(target_machine)) {
987 if (machine_size == 64) {
988 /* to ease porting of old c-code microsoft decided to use 32bits
990 props[ATOMIC_TYPE_LONG] = props[ATOMIC_TYPE_INT];
991 props[ATOMIC_TYPE_ULONG] = props[ATOMIC_TYPE_UINT];
994 /* on windows long double is not supported */
995 props[ATOMIC_TYPE_LONG_DOUBLE] = props[ATOMIC_TYPE_DOUBLE];
996 } else if (firm_is_unixish_os(target_machine)) {
997 if (is_ia32_cpu(target_machine->cpu_type)) {
998 /* System V has a broken alignment for double so we have to add
1000 props[ATOMIC_TYPE_DOUBLE].struct_alignment = 4;
1001 props[ATOMIC_TYPE_LONGLONG].struct_alignment = 4;
1002 props[ATOMIC_TYPE_ULONGLONG].struct_alignment = 4;
1006 /* stuff decided after processing operating system specifics and
1007 * commandline flags */
1008 if (char_is_signed) {
1009 props[ATOMIC_TYPE_CHAR].flags |= ATOMIC_TYPE_FLAG_SIGNED;
1011 props[ATOMIC_TYPE_CHAR].flags &= ~ATOMIC_TYPE_FLAG_SIGNED;
1013 /* copy over wchar_t properties (including rank) */
1014 props[ATOMIC_TYPE_WCHAR_T] = props[wchar_atomic_kind];
1016 /* initialize defaults for unsupported types */
1017 if (type_long_long == NULL) {
1018 copy_typeprops(&props[ATOMIC_TYPE_LONGLONG], &props[ATOMIC_TYPE_LONG]);
1020 if (type_unsigned_long_long == NULL) {
1021 copy_typeprops(&props[ATOMIC_TYPE_ULONGLONG],
1022 &props[ATOMIC_TYPE_ULONG]);
1024 if (type_long_double == NULL) {
1025 copy_typeprops(&props[ATOMIC_TYPE_LONG_DOUBLE],
1026 &props[ATOMIC_TYPE_DOUBLE]);
1029 /* initialize firm pointer modes */
1031 unsigned bit_size = machine_size;
1032 unsigned modulo_shift = decide_modulo_shift(bit_size);
1034 snprintf(name, sizeof(name), "p%u", machine_size);
1035 ir_mode *ptr_mode = new_reference_mode(name, irma_twos_complement, bit_size, modulo_shift);
1037 if (machine_size == 16) {
1038 set_reference_mode_signed_eq(ptr_mode, mode_Hs);
1039 set_reference_mode_unsigned_eq(ptr_mode, mode_Hu);
1040 } else if (machine_size == 32) {
1041 set_reference_mode_signed_eq(ptr_mode, mode_Is);
1042 set_reference_mode_unsigned_eq(ptr_mode, mode_Iu);
1043 } else if (machine_size == 64) {
1044 set_reference_mode_signed_eq(ptr_mode, mode_Ls);
1045 set_reference_mode_unsigned_eq(ptr_mode, mode_Lu);
1047 panic("strange machine_size when determining pointer modes");
1050 /* Hmm, pointers should be machine size */
1051 set_modeP_data(ptr_mode);
1052 set_modeP_code(ptr_mode);
1054 byte_order_big_endian = be_params->byte_order_big_endian;
1055 if (be_params->modulo_shift_efficient) {
1056 architecture_modulo_shift = machine_size;
1058 architecture_modulo_shift = 0;
1062 static void setup_cmode(const compilation_unit_t *unit)
1064 compilation_unit_type_t type = unit->type;
1065 lang_standard_t standard = unit->standard;
1066 if (type == COMPILATION_UNIT_PREPROCESSED_C || type == COMPILATION_UNIT_C) {
1068 case STANDARD_C89: c_mode = _C89; break;
1069 /* TODO determine difference between these two */
1070 case STANDARD_C89AMD1: c_mode = _C89; break;
1071 case STANDARD_C99: c_mode = _C89 | _C99; break;
1072 case STANDARD_GNU89: c_mode = _C89 | _GNUC; break;
1075 case STANDARD_CXX98:
1076 case STANDARD_GNUXX98:
1077 case STANDARD_DEFAULT:
1078 fprintf(stderr, "warning: command line option \"-std=%s\" is not valid for C\n", str_lang_standard(standard));
1080 case STANDARD_GNU99: c_mode = _C89 | _C99 | _GNUC; break;
1082 } else if (type == COMPILATION_UNIT_PREPROCESSED_CXX
1083 || type == COMPILATION_UNIT_CXX) {
1085 case STANDARD_CXX98: c_mode = _CXX; break;
1089 case STANDARD_C89AMD1:
1091 case STANDARD_GNU89:
1092 case STANDARD_GNU99:
1093 case STANDARD_DEFAULT:
1094 fprintf(stderr, "warning: command line option \"-std=%s\" is not valid for C++\n", str_lang_standard(standard));
1096 case STANDARD_GNUXX98: c_mode = _CXX | _GNUC; break;
1100 c_mode |= features_on;
1101 c_mode &= ~features_off;
1104 static void determine_unit_standard(compilation_unit_t *unit,
1105 lang_standard_t standard)
1107 unit->standard = standard;
1110 switch (unit->type) {
1111 case COMPILATION_UNIT_C:
1112 case COMPILATION_UNIT_PREPROCESSED_C:
1113 unit->standard = STANDARD_C89;
1115 case COMPILATION_UNIT_CXX:
1116 case COMPILATION_UNIT_PREPROCESSED_CXX:
1117 unit->standard = STANDARD_CXX98;
1124 case STANDARD_DEFAULT:
1125 switch (unit->type) {
1126 case COMPILATION_UNIT_C:
1127 case COMPILATION_UNIT_PREPROCESSED_C:
1128 unit->standard = STANDARD_GNU99;
1130 case COMPILATION_UNIT_CXX:
1131 case COMPILATION_UNIT_PREPROCESSED_CXX:
1132 unit->standard = STANDARD_GNUXX98;
1144 static bool output_preprocessor_tokens(compilation_unit_t *unit, FILE *out)
1146 /* just here for gcc compatibility */
1147 fprintf(out, "# 1 \"%s\"\n", unit->name);
1148 fprintf(out, "# 1 \"<built-in>\"\n");
1149 fprintf(out, "# 1 \"<command-line>\"\n");
1151 set_preprocessor_output(out);
1152 switch_pp_input(unit->input, unit->name);
1155 next_preprocessing_token();
1156 if (pp_token.kind == T_EOF)
1162 check_unclosed_conditionals();
1164 print_error_summary();
1165 set_preprocessor_output(NULL);
1167 if (unit->type == COMPILATION_UNIT_C) {
1168 unit->type = COMPILATION_UNIT_PREPROCESSED_C;
1169 } else if (unit->type == COMPILATION_UNIT_CXX) {
1170 unit->type = COMPILATION_UNIT_PREPROCESSED_CXX;
1172 bool res = close_input(unit);
1173 return res && error_count == 0;
1176 static bool open_input(compilation_unit_t *unit)
1178 /* input already available as FILE? */
1179 if (unit->input != NULL)
1182 const char *const inputname = unit->name;
1183 unit->input_is_pipe = false;
1184 if (streq(inputname, "-")) {
1185 unit->input = stdin;
1187 unit->input = fopen(inputname, "r");
1188 if (unit->input == NULL) {
1189 fprintf(stderr, "Could not open '%s': %s\n", inputname,
1197 static int compilation_loop(compile_mode_t mode, compilation_unit_t *units,
1198 lang_standard_t standard, FILE *out)
1200 int result = EXIT_SUCCESS;
1201 bool already_constructed_firm = false;
1202 for (compilation_unit_t *unit = units; unit != NULL; unit = unit->next) {
1203 const char *const inputname = unit->name;
1205 determine_unit_standard(unit, standard);
1209 switch (unit->type) {
1210 case COMPILATION_UNIT_IR: {
1211 bool res = open_input(unit);
1213 result = EXIT_FAILURE;
1216 res = !ir_import_file(unit->input, unit->name);
1218 fprintf(stderr, "Import of firm graph from '%s' failed\n",
1220 result = EXIT_FAILURE;
1223 unit->type = COMPILATION_UNIT_INTERMEDIATE_REPRESENTATION;
1226 case COMPILATION_UNIT_ASSEMBLER:
1227 panic("TODO: preprocess for assembler");
1228 case COMPILATION_UNIT_C:
1229 case COMPILATION_UNIT_CXX:
1230 if (external_preprocessor != NULL) {
1231 bool res = run_external_preprocessor(unit);
1233 result = EXIT_FAILURE;
1240 case COMPILATION_UNIT_PREPROCESSED_C:
1241 case COMPILATION_UNIT_PREPROCESSED_CXX: {
1242 bool res = open_input(unit);
1244 result = EXIT_FAILURE;
1249 if (mode == PreprocessOnly) {
1250 bool res = output_preprocessor_tokens(unit, out);
1252 result = EXIT_FAILURE;
1258 /* do the actual parsing */
1262 case COMPILATION_UNIT_AST:
1263 /* prints the AST even if errors occurred */
1264 if (mode == PrintAst) {
1266 print_ast(unit->ast);
1268 if (unit->parse_errors) {
1269 result = EXIT_FAILURE;
1273 if (mode == BenchmarkParser) {
1275 } else if (mode == PrintFluffy) {
1276 write_fluffy_decls(out, unit->ast);
1278 } else if (mode == PrintJna) {
1279 write_jna_decls(out, unit->ast);
1283 /* build the firm graph */
1284 ir_timer_t *t_construct = ir_timer_new();
1285 timer_register(t_construct, "Frontend: Graph construction");
1286 timer_push(t_construct);
1287 if (already_constructed_firm) {
1288 panic("compiling multiple files/translation units not possible");
1290 init_implicit_optimizations();
1291 translation_unit_to_firm(unit->ast);
1292 already_constructed_firm = true;
1293 timer_pop(t_construct);
1294 unit->type = COMPILATION_UNIT_INTERMEDIATE_REPRESENTATION;
1297 case COMPILATION_UNIT_INTERMEDIATE_REPRESENTATION:
1298 if (mode == CompileDump) {
1300 ident *id = new_id_from_str(dumpfunction);
1301 ir_graph *irg = NULL;
1302 int n_irgs = get_irp_n_irgs();
1303 for (int i = 0; i < n_irgs; ++i) {
1304 ir_graph *tirg = get_irp_irg(i);
1305 ident *irg_id = get_entity_ident(get_irg_entity(tirg));
1313 fprintf(stderr, "No graph for function '%s' found\n",
1315 return EXIT_FAILURE;
1318 dump_ir_graph_file(out, irg);
1320 return EXIT_SUCCESS;
1323 if (mode == CompileExportIR) {
1324 ir_export_file(out);
1325 if (ferror(out) != 0) {
1326 fprintf(stderr, "Error while writing to output\n");
1327 return EXIT_FAILURE;
1329 return EXIT_SUCCESS;
1333 if (mode == Compile) {
1336 asm_out = make_temp_file("ccs", &unit->name);
1338 generate_code(asm_out, inputname);
1339 if (asm_out != out) {
1342 unit->type = COMPILATION_UNIT_PREPROCESSED_ASSEMBLER;
1344 case COMPILATION_UNIT_PREPROCESSED_ASSEMBLER:
1345 if (mode != CompileAssemble && mode != CompileAssembleLink)
1349 const char *input = unit->name;
1350 if (mode == CompileAssemble) {
1352 unit->name = outname;
1354 FILE *tempf = make_temp_file("cco", &unit->name);
1359 assemble(unit->name, input);
1361 unit->type = COMPILATION_UNIT_OBJECT;
1363 case COMPILATION_UNIT_UNKNOWN:
1364 case COMPILATION_UNIT_AUTODETECT:
1365 case COMPILATION_UNIT_OBJECT:
1372 static int link_program(compilation_unit_t *units)
1374 obstack_1grow(&ldflags_obst, '\0');
1375 const char *flags = obstack_finish(&ldflags_obst);
1377 /* construct commandline */
1378 const char *linker = getenv("CPARSER_LINK");
1379 if (linker != NULL) {
1380 obstack_printf(&file_obst, "%s ", linker);
1382 if (target_triple != NULL)
1383 obstack_printf(&file_obst, "%s-", target_triple);
1384 obstack_printf(&file_obst, "%s ", LINKER);
1387 for (compilation_unit_t *unit = units; unit != NULL; unit = unit->next) {
1388 if (unit->type != COMPILATION_UNIT_OBJECT)
1391 add_flag(&file_obst, "%s", unit->name);
1394 add_flag(&file_obst, "-o");
1395 add_flag(&file_obst, outname);
1396 obstack_printf(&file_obst, "%s", flags);
1397 obstack_1grow(&file_obst, '\0');
1399 char *commandline = obstack_finish(&file_obst);
1404 int err = system(commandline);
1405 if (err != EXIT_SUCCESS) {
1406 fprintf(stderr, "linker reported an error\n");
1407 return EXIT_FAILURE;
1409 return EXIT_SUCCESS;
1412 int main(int argc, char **argv)
1414 const char *print_file_name_file = NULL;
1415 compile_mode_t mode = CompileAssembleLink;
1417 char cpu_arch[16] = "ia32";
1418 compilation_unit_t *units = NULL;
1419 compilation_unit_t *last_unit = NULL;
1420 bool construct_dep_target = false;
1421 bool do_timing = false;
1422 bool profile_generate = false;
1423 bool profile_use = false;
1425 /* hack for now... */
1426 if (strstr(argv[0], "pptest") != NULL) {
1427 extern int pptest_main(int argc, char **argv);
1428 return pptest_main(argc, argv);
1431 temp_files = NEW_ARR_F(char*, 0);
1432 atexit(free_temp_files);
1434 obstack_init(&cppflags_obst);
1435 obstack_init(&ldflags_obst);
1436 obstack_init(&asflags_obst);
1437 obstack_init(&file_obst);
1439 #define GET_ARG_AFTER(def, args) \
1441 def = &arg[sizeof(args)-1]; \
1442 if (def[0] == '\0') { \
1445 fprintf(stderr, "error: expected argument after '" args "'\n"); \
1446 argument_errors = true; \
1450 if (def[0] == '-' && def[1] != '\0') { \
1451 fprintf(stderr, "error: expected argument after '" args "'\n"); \
1452 argument_errors = true; \
1458 #define SINGLE_OPTION(ch) (option[0] == (ch) && option[1] == '\0')
1460 /* initialize this early because it has to parse options */
1463 /* early options parsing (find out optimization level and OS) */
1464 for (int i = 1; i < argc; ++i) {
1465 const char *arg = argv[i];
1469 const char *option = &arg[1];
1470 if (option[0] == 'O') {
1471 sscanf(&option[1], "%d", &opt_level);
1475 if (target_machine == NULL) {
1476 target_machine = firm_get_host_machine();
1478 choose_optimization_pack(opt_level);
1479 setup_target_machine();
1481 /* parse rest of options */
1482 lang_standard_t standard = STANDARD_DEFAULT;
1483 compilation_unit_type_t forced_unittype = COMPILATION_UNIT_AUTODETECT;
1484 help_sections_t help = HELP_NONE;
1485 bool argument_errors = false;
1486 for (int i = 1; i < argc; ++i) {
1487 const char *arg = argv[i];
1488 if (arg[0] == '-' && arg[1] != '\0') {
1490 const char *option = &arg[1];
1491 if (option[0] == 'o') {
1492 GET_ARG_AFTER(outname, "-o");
1493 } else if (option[0] == 'g') {
1494 /* TODO: parse -gX with 0<=x<=3... */
1495 set_be_option("debug=frameinfo");
1496 set_be_option("ia32-nooptcc=yes");
1497 } else if (SINGLE_OPTION('c')) {
1498 mode = CompileAssemble;
1499 } else if (SINGLE_OPTION('E')) {
1500 mode = PreprocessOnly;
1501 } else if (SINGLE_OPTION('s')) {
1502 add_flag(&ldflags_obst, "-s");
1503 } else if (SINGLE_OPTION('S')) {
1505 } else if (option[0] == 'O') {
1507 } else if (option[0] == 'I') {
1509 GET_ARG_AFTER(opt, "-I");
1510 add_flag(&cppflags_obst, "-I%s", opt);
1511 } else if (option[0] == 'D') {
1513 GET_ARG_AFTER(opt, "-D");
1514 add_flag(&cppflags_obst, "-D%s", opt);
1515 } else if (option[0] == 'U') {
1517 GET_ARG_AFTER(opt, "-U");
1518 add_flag(&cppflags_obst, "-U%s", opt);
1519 } else if (option[0] == 'l') {
1521 GET_ARG_AFTER(opt, "-l");
1522 add_flag(&ldflags_obst, "-l%s", opt);
1523 } else if (option[0] == 'L') {
1525 GET_ARG_AFTER(opt, "-L");
1526 add_flag(&ldflags_obst, "-L%s", opt);
1527 } else if (SINGLE_OPTION('v')) {
1529 } else if (SINGLE_OPTION('w')) {
1530 add_flag(&cppflags_obst, "-w");
1531 disable_all_warnings();
1532 } else if (option[0] == 'x') {
1534 GET_ARG_AFTER(opt, "-x");
1535 forced_unittype = get_unit_type_from_string(opt);
1536 if (forced_unittype == COMPILATION_UNIT_UNKNOWN) {
1537 fprintf(stderr, "Unknown language '%s'\n", opt);
1538 argument_errors = true;
1540 } else if (streq(option, "M")) {
1541 mode = PreprocessOnly;
1542 add_flag(&cppflags_obst, "-M");
1543 } else if (streq(option, "MMD") ||
1544 streq(option, "MD")) {
1545 construct_dep_target = true;
1546 add_flag(&cppflags_obst, "-%s", option);
1547 } else if (streq(option, "MM") ||
1548 streq(option, "MP")) {
1549 add_flag(&cppflags_obst, "-%s", option);
1550 } else if (streq(option, "MT") ||
1551 streq(option, "MQ") ||
1552 streq(option, "MF")) {
1554 GET_ARG_AFTER(opt, "-MT");
1555 add_flag(&cppflags_obst, "-%s", option);
1556 add_flag(&cppflags_obst, "%s", opt);
1557 } else if (streq(option, "include")) {
1559 GET_ARG_AFTER(opt, "-include");
1560 add_flag(&cppflags_obst, "-include");
1561 add_flag(&cppflags_obst, "%s", opt);
1562 } else if (streq(option, "isystem")) {
1564 GET_ARG_AFTER(opt, "-isystem");
1565 add_flag(&cppflags_obst, "-isystem");
1566 add_flag(&cppflags_obst, "%s", opt);
1567 } else if (streq(option, "pthread")) {
1568 /* set flags for the preprocessor */
1569 add_flag(&cppflags_obst, "-D_REENTRANT");
1570 /* set flags for the linker */
1571 add_flag(&ldflags_obst, "-lpthread");
1572 } else if (streq(option, "nostdinc")
1573 || streq(option, "trigraphs")) {
1574 /* pass these through to the preprocessor */
1575 add_flag(&cppflags_obst, "%s", arg);
1576 } else if (streq(option, "pipe")) {
1577 /* here for gcc compatibility */
1578 } else if (streq(option, "static")) {
1579 add_flag(&ldflags_obst, "-static");
1580 } else if (streq(option, "shared")) {
1581 add_flag(&ldflags_obst, "-shared");
1582 } else if (option[0] == 'f') {
1583 char const *orig_opt;
1584 GET_ARG_AFTER(orig_opt, "-f");
1586 if (strstart(orig_opt, "input-charset=")) {
1587 char const* const encoding = strchr(orig_opt, '=') + 1;
1588 input_encoding = encoding;
1589 } else if (strstart(orig_opt, "align-loops=") ||
1590 strstart(orig_opt, "align-jumps=") ||
1591 strstart(orig_opt, "align-functions=")) {
1592 fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
1593 } else if (strstart(orig_opt, "visibility=")) {
1594 const char *val = strchr(orig_opt, '=')+1;
1595 elf_visibility_tag_t visibility
1596 = get_elf_visibility_from_string(val);
1597 if (visibility == ELF_VISIBILITY_ERROR) {
1598 fprintf(stderr, "invalid visibility '%s' specified\n",
1600 argument_errors = true;
1602 set_default_visibility(visibility);
1604 } else if (strstart(orig_opt, "message-length=")) {
1605 /* ignore: would only affect error message format */
1606 } else if (streq(orig_opt, "fast-math") ||
1607 streq(orig_opt, "fp-fast")) {
1608 firm_fp_model = fp_model_fast;
1609 } else if (streq(orig_opt, "fp-precise")) {
1610 firm_fp_model = fp_model_precise;
1611 } else if (streq(orig_opt, "fp-strict")) {
1612 firm_fp_model = fp_model_strict;
1613 } else if (streq(orig_opt, "help")) {
1614 fprintf(stderr, "warning: -fhelp is deprecated\n");
1615 help |= HELP_OPTIMIZATION;
1617 /* -f options which have an -fno- variant */
1618 char const *opt = orig_opt;
1619 bool truth_value = true;
1620 if (opt[0] == 'n' && opt[1] == 'o' && opt[2] == '-') {
1621 truth_value = false;
1625 if (streq(opt, "diagnostics-show-option")) {
1626 diagnostics_show_option = truth_value;
1627 } else if (streq(opt, "dollars-in-identifiers")) {
1628 allow_dollar_in_symbol = truth_value;
1629 } else if (streq(opt, "omit-frame-pointer")) {
1630 set_be_option(truth_value ? "omitfp" : "omitfp=no");
1631 } else if (streq(opt, "short-wchar")) {
1632 wchar_atomic_kind = truth_value ? ATOMIC_TYPE_USHORT
1634 } else if (streq(opt, "show-column")) {
1635 show_column = truth_value;
1636 } else if (streq(opt, "signed-char")) {
1637 char_is_signed = truth_value;
1638 } else if (streq(opt, "strength-reduce")) {
1639 /* does nothing, for gcc compatibility (even gcc does
1640 * nothing for this switch anymore) */
1641 } else if (streq(opt, "syntax-only")) {
1642 mode = truth_value ? ParseOnly : CompileAssembleLink;
1643 } else if (streq(opt, "unsigned-char")) {
1644 char_is_signed = !truth_value;
1645 } else if (streq(opt, "freestanding")) {
1646 freestanding = truth_value;
1647 } else if (streq(opt, "hosted")) {
1648 freestanding = !truth_value;
1649 } else if (streq(opt, "profile-generate")) {
1650 profile_generate = truth_value;
1651 } else if (streq(opt, "profile-use")) {
1652 profile_use = truth_value;
1653 } else if (!truth_value &&
1654 streq(opt, "asynchronous-unwind-tables")) {
1655 /* nothing todo, a gcc feature which we do not support
1656 * anyway was deactivated */
1657 } else if (streq(opt, "verbose-asm")) {
1658 /* ignore: we always print verbose assembler */
1659 } else if (streq(opt, "jump-tables") ||
1660 streq(opt, "expensive-optimizations") ||
1661 streq(opt, "common") ||
1662 streq(opt, "optimize-sibling-calls") ||
1663 streq(opt, "align-loops") ||
1664 streq(opt, "align-jumps") ||
1665 streq(opt, "align-functions") ||
1666 streq(opt, "unroll-loops") ||
1667 streq(opt, "PIC") ||
1668 streq(opt, "stack-protector") ||
1669 streq(opt, "stack-protector-all")) {
1670 fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
1672 int res = firm_option(orig_opt);
1674 fprintf(stderr, "error: unknown Firm option '-f%s'\n",
1676 argument_errors = true;
1681 } else if (option[0] == 'b') {
1683 GET_ARG_AFTER(opt, "-b");
1685 if (streq(opt, "help")) {
1686 fprintf(stderr, "warning: -bhelp is deprecated (use --help-firm)\n");
1689 int res = be_parse_arg(opt);
1691 fprintf(stderr, "error: unknown Firm backend option '-b %s'\n",
1693 argument_errors = true;
1694 } else if (strstart(opt, "isa=")) {
1695 strncpy(cpu_arch, opt, sizeof(cpu_arch));
1698 } else if (option[0] == 'W') {
1699 if (strstart(option + 1, "p,")) {
1700 // pass options directly to the preprocessor
1702 GET_ARG_AFTER(opt, "-Wp,");
1703 add_flag(&cppflags_obst, "-Wp,%s", opt);
1704 } else if (strstart(option + 1, "l,")) {
1705 // pass options directly to the linker
1707 GET_ARG_AFTER(opt, "-Wl,");
1708 add_flag(&ldflags_obst, "-Wl,%s", opt);
1709 } else if (streq(option + 1, "no-trigraphs")
1710 || streq(option + 1, "undef")
1711 || streq(option + 1, "missing-include-dirs")
1712 || streq(option + 1, "endif-labels")) {
1713 add_flag(&cppflags_obst, "%s", arg);
1714 } else if (streq(option+1, "init-self")) {
1715 /* ignored (same as gcc does) */
1716 } else if (streq(option+1, "format-y2k")
1717 || streq(option+1, "format-security")
1718 || streq(option+1, "old-style-declaration")
1719 || streq(option+1, "type-limits")) {
1720 /* ignore (gcc compatibility) */
1722 set_warning_opt(&option[1]);
1724 } else if (option[0] == 'm') {
1729 GET_ARG_AFTER(opt, "-m");
1730 if (strstart(opt, "target=")) {
1731 GET_ARG_AFTER(opt, "-mtarget=");
1732 if (!parse_target_triple(opt)) {
1733 argument_errors = true;
1735 const char *isa = setup_target_machine();
1736 strncpy(cpu_arch, isa, sizeof(cpu_arch));
1737 target_triple = opt;
1739 } else if (strstart(opt, "triple=")) {
1740 GET_ARG_AFTER(opt, "-mtriple=");
1741 if (!parse_target_triple(opt)) {
1742 argument_errors = true;
1744 const char *isa = setup_target_machine();
1745 strncpy(cpu_arch, isa, sizeof(cpu_arch));
1746 target_triple = opt;
1748 } else if (strstart(opt, "arch=")) {
1749 GET_ARG_AFTER(opt, "-march=");
1750 snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
1751 int res = be_parse_arg(arch_opt);
1752 snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
1753 res &= be_parse_arg(arch_opt);
1756 fprintf(stderr, "Unknown architecture '%s'\n", arch_opt);
1757 argument_errors = true;
1759 } else if (strstart(opt, "tune=")) {
1760 GET_ARG_AFTER(opt, "-mtune=");
1761 snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
1762 int res = be_parse_arg(arch_opt);
1764 argument_errors = true;
1765 } else if (strstart(opt, "cpu=")) {
1766 GET_ARG_AFTER(opt, "-mcpu=");
1767 snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
1768 int res = be_parse_arg(arch_opt);
1770 argument_errors = true;
1771 } else if (strstart(opt, "fpmath=")) {
1772 GET_ARG_AFTER(opt, "-mfpmath=");
1773 if (streq(opt, "387"))
1775 else if (streq(opt, "sse"))
1778 fprintf(stderr, "error: option -mfpmath supports only 387 or sse\n");
1779 argument_errors = true;
1781 if (!argument_errors) {
1782 snprintf(arch_opt, sizeof(arch_opt), "%s-fpunit=%s", cpu_arch, opt);
1783 int res = be_parse_arg(arch_opt);
1785 argument_errors = true;
1787 } else if (strstart(opt, "preferred-stack-boundary=")) {
1788 GET_ARG_AFTER(opt, "-mpreferred-stack-boundary=");
1789 snprintf(arch_opt, sizeof(arch_opt), "%s-stackalign=%s", cpu_arch, opt);
1790 int res = be_parse_arg(arch_opt);
1792 argument_errors = true;
1793 } else if (streq(opt, "rtd")) {
1794 default_calling_convention = CC_STDCALL;
1795 } else if (strstart(opt, "regparm=")) {
1796 fprintf(stderr, "error: regparm convention not supported yet\n");
1797 argument_errors = true;
1798 } else if (streq(opt, "soft-float")) {
1799 add_flag(&ldflags_obst, "-msoft-float");
1800 snprintf(arch_opt, sizeof(arch_opt), "%s-fpunit=softfloat", cpu_arch);
1801 int res = be_parse_arg(arch_opt);
1803 argument_errors = true;
1804 } else if (streq(opt, "sse2")) {
1805 /* ignore for now, our x86 backend always uses sse when
1806 * sse is requested */
1808 long int value = strtol(opt, NULL, 10);
1810 fprintf(stderr, "error: wrong option '-m %s'\n", opt);
1811 argument_errors = true;
1812 } else if (value != 16 && value != 32 && value != 64) {
1813 fprintf(stderr, "error: option -m supports only 16, 32 or 64\n");
1814 argument_errors = true;
1816 unsigned machine_size = (unsigned)value;
1817 /* TODO: choose/change backend based on this */
1818 add_flag(&cppflags_obst, "-m%u", machine_size);
1819 add_flag(&asflags_obst, "-m%u", machine_size);
1820 add_flag(&ldflags_obst, "-m%u", machine_size);
1823 } else if (streq(option, "pg")) {
1824 set_be_option("gprof");
1825 add_flag(&ldflags_obst, "-pg");
1826 } else if (streq(option, "ansi")) {
1827 standard = STANDARD_ANSI;
1828 } else if (streq(option, "pedantic")) {
1829 fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg);
1830 } else if (strstart(option, "std=")) {
1831 const char *const o = &option[4];
1833 streq(o, "c++") ? STANDARD_CXX98 :
1834 streq(o, "c++98") ? STANDARD_CXX98 :
1835 streq(o, "c89") ? STANDARD_C89 :
1836 streq(o, "c90") ? STANDARD_C89 :
1837 streq(o, "c99") ? STANDARD_C99 :
1838 streq(o, "c9x") ? STANDARD_C99 : // deprecated
1839 streq(o, "gnu++98") ? STANDARD_GNUXX98 :
1840 streq(o, "gnu89") ? STANDARD_GNU89 :
1841 streq(o, "gnu99") ? STANDARD_GNU99 :
1842 streq(o, "gnu9x") ? STANDARD_GNU99 : // deprecated
1843 streq(o, "iso9899:1990") ? STANDARD_C89 :
1844 streq(o, "iso9899:199409") ? STANDARD_C89AMD1 :
1845 streq(o, "iso9899:1999") ? STANDARD_C99 :
1846 streq(o, "iso9899:199x") ? STANDARD_C99 : // deprecated
1847 (fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg), standard);
1848 } else if (streq(option, "version")) {
1849 print_cparser_version();
1850 return EXIT_SUCCESS;
1851 } else if (streq(option, "dumpversion")) {
1852 /* gcc compatibility option */
1853 print_cparser_version_short();
1854 return EXIT_SUCCESS;
1855 } else if (strstart(option, "print-file-name=")) {
1856 GET_ARG_AFTER(print_file_name_file, "-print-file-name=");
1857 } else if (option[0] == '-') {
1858 /* double dash option */
1860 if (streq(option, "gcc")) {
1861 features_on |= _GNUC;
1862 features_off &= ~_GNUC;
1863 } else if (streq(option, "no-gcc")) {
1864 features_on &= ~_GNUC;
1865 features_off |= _GNUC;
1866 } else if (streq(option, "ms")) {
1868 features_off &= ~_MS;
1869 } else if (streq(option, "no-ms")) {
1870 features_on &= ~_MS;
1871 features_off |= _MS;
1872 } else if (streq(option, "strict")) {
1874 } else if (streq(option, "benchmark")) {
1875 mode = BenchmarkParser;
1876 } else if (streq(option, "print-ast")) {
1878 } else if (streq(option, "print-implicit-cast")) {
1879 print_implicit_casts = true;
1880 } else if (streq(option, "print-parenthesis")) {
1881 print_parenthesis = true;
1882 } else if (streq(option, "print-fluffy")) {
1884 } else if (streq(option, "print-jna")) {
1886 } else if (streq(option, "jna-limit")) {
1889 fprintf(stderr, "error: "
1890 "expected argument after '--jna-limit'\n");
1891 argument_errors = true;
1894 jna_limit_output(argv[i]);
1895 } else if (streq(option, "jna-libname")) {
1898 fprintf(stderr, "error: "
1899 "expected argument after '--jna-libname'\n");
1900 argument_errors = true;
1903 jna_set_libname(argv[i]);
1904 } else if (streq(option, "external-pp")) {
1905 if (i+1 < argc && argv[i+1][0] != '-') {
1907 external_preprocessor = argv[i+1];
1909 external_preprocessor = PREPROCESSOR;
1911 } else if (streq(option, "no-external-pp")) {
1912 external_preprocessor = NULL;
1913 } else if (streq(option, "time")) {
1915 } else if (streq(option, "version")) {
1916 print_cparser_version();
1917 return EXIT_SUCCESS;
1918 } else if (streq(option, "help")) {
1920 } else if (streq(option, "help-parser")) {
1921 help |= HELP_PARSER;
1922 } else if (streq(option, "help-warnings")) {
1923 help |= HELP_WARNINGS;
1924 } else if (streq(option, "help-codegen")) {
1925 help |= HELP_CODEGEN;
1926 } else if (streq(option, "help-linker")) {
1927 help |= HELP_LINKER;
1928 } else if (streq(option, "help-optimization")) {
1929 help |= HELP_OPTIMIZATION;
1930 } else if (streq(option, "help-language-tools")) {
1931 help |= HELP_LANGUAGETOOLS;
1932 } else if (streq(option, "help-debug")) {
1934 } else if (streq(option, "help-firm")) {
1936 } else if (streq(option, "help-all")) {
1938 } else if (streq(option, "dump-function")) {
1941 fprintf(stderr, "error: "
1942 "expected argument after '--dump-function'\n");
1943 argument_errors = true;
1946 dumpfunction = argv[i];
1948 } else if (streq(option, "export-ir")) {
1949 mode = CompileExportIR;
1950 } else if (streq(option, "unroll-loops")) {
1951 /* ignore (gcc compatibility) */
1953 fprintf(stderr, "error: unknown argument '%s'\n", arg);
1954 argument_errors = true;
1957 fprintf(stderr, "error: unknown argument '%s'\n", arg);
1958 argument_errors = true;
1961 compilation_unit_type_t type = forced_unittype;
1962 if (type == COMPILATION_UNIT_AUTODETECT) {
1963 if (streq(arg, "-")) {
1964 /* - implicitly means C source file */
1965 type = COMPILATION_UNIT_C;
1967 const char *suffix = strrchr(arg, '.');
1968 /* Ensure there is at least one char before the suffix */
1969 if (suffix != NULL && suffix != arg) {
1972 streq(suffix, "S") ? COMPILATION_UNIT_ASSEMBLER :
1973 streq(suffix, "a") ? COMPILATION_UNIT_OBJECT :
1974 streq(suffix, "c") ? COMPILATION_UNIT_C :
1975 streq(suffix, "i") ? COMPILATION_UNIT_PREPROCESSED_C :
1976 streq(suffix, "C") ? COMPILATION_UNIT_CXX :
1977 streq(suffix, "cc") ? COMPILATION_UNIT_CXX :
1978 streq(suffix, "cp") ? COMPILATION_UNIT_CXX :
1979 streq(suffix, "cpp") ? COMPILATION_UNIT_CXX :
1980 streq(suffix, "CPP") ? COMPILATION_UNIT_CXX :
1981 streq(suffix, "cxx") ? COMPILATION_UNIT_CXX :
1982 streq(suffix, "c++") ? COMPILATION_UNIT_CXX :
1983 streq(suffix, "ii") ? COMPILATION_UNIT_PREPROCESSED_CXX :
1984 streq(suffix, "h") ? COMPILATION_UNIT_C :
1985 streq(suffix, "ir") ? COMPILATION_UNIT_IR :
1986 streq(suffix, "o") ? COMPILATION_UNIT_OBJECT :
1987 streq(suffix, "s") ? COMPILATION_UNIT_PREPROCESSED_ASSEMBLER :
1988 streq(suffix, "so") ? COMPILATION_UNIT_OBJECT :
1989 COMPILATION_UNIT_OBJECT; /* gcc behavior: unknown file extension means object file */
1994 compilation_unit_t *entry = OALLOCZ(&file_obst, compilation_unit_t);
1998 if (last_unit != NULL) {
1999 last_unit->next = entry;
2007 if (help != HELP_NONE) {
2008 print_help(argv[0], help);
2009 return !argument_errors;
2012 if (print_file_name_file != NULL) {
2013 print_file_name(print_file_name_file);
2014 return EXIT_SUCCESS;
2016 if (units == NULL) {
2017 fprintf(stderr, "error: no input files specified\n");
2018 argument_errors = true;
2021 if (argument_errors) {
2023 return EXIT_FAILURE;
2026 /* apply some effects from switches */
2027 c_mode |= features_on;
2028 c_mode &= ~features_off;
2029 if (profile_generate) {
2030 add_flag(&ldflags_obst, "-lfirmprof");
2031 set_be_option("profilegenerate");
2034 set_be_option("profileuse");
2037 init_symbol_table();
2038 init_types_and_adjust();
2041 if (c_mode & _CXX) {
2042 init_wchar_types(ATOMIC_TYPE_WCHAR_T);
2044 init_wchar_types(wchar_atomic_kind);
2046 init_preprocessor();
2055 if (construct_dep_target) {
2056 if (outname != 0 && strlen(outname) >= 2) {
2057 get_output_name(dep_target, sizeof(dep_target), outname, ".d");
2059 get_output_name(dep_target, sizeof(dep_target), units->name, ".d");
2062 dep_target[0] = '\0';
2065 char outnamebuf[4096];
2066 if (outname == NULL) {
2067 const char *filename = units->name;
2070 case BenchmarkParser:
2074 case PreprocessOnly:
2079 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".s");
2080 outname = outnamebuf;
2082 case CompileAssemble:
2083 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".o");
2084 outname = outnamebuf;
2087 get_output_name(outnamebuf, sizeof(outnamebuf), dumpfunction,
2089 outname = outnamebuf;
2091 case CompileExportIR:
2092 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".ir");
2093 outname = outnamebuf;
2095 case CompileAssembleLink:
2096 if (firm_is_windows_os(target_machine)) {
2105 assert(outname != NULL);
2108 if (streq(outname, "-")) {
2111 out = fopen(outname, "w");
2113 fprintf(stderr, "Could not open '%s' for writing: %s\n", outname,
2115 return EXIT_FAILURE;
2119 int result = compilation_loop(mode, units, standard, out);
2120 if (result != EXIT_SUCCESS) {
2126 /* link program file */
2127 if (mode == CompileAssembleLink) {
2128 int result = link_program(units);
2129 if (result != EXIT_SUCCESS) {
2139 obstack_free(&cppflags_obst, NULL);
2140 obstack_free(&ldflags_obst, NULL);
2141 obstack_free(&asflags_obst, NULL);
2142 obstack_free(&file_obst, NULL);
2149 exit_preprocessor();
2153 exit_symbol_table();
2154 return EXIT_SUCCESS;