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 unit->ast = finish_parsing();
231 check_unclosed_conditionals();
233 bool res = close_input(unit);
235 print_error_summary();
237 unit->type = COMPILATION_UNIT_AST;
238 unit->parse_errors = error_count > 0 || !res;
239 timer_pop(t_parsing);
242 static void add_flag(struct obstack *obst, const char *format, ...)
247 va_start(ap, format);
251 vsnprintf(buf, sizeof(buf), format, ap);
254 obstack_1grow(obst, ' ');
256 obstack_1grow(obst, '"');
257 obstack_grow(obst, buf, len);
258 obstack_1grow(obst, '"');
260 /* escape stuff... */
261 for (char *c = buf; *c != '\0'; ++c) {
279 obstack_1grow(obst, '\\');
282 obstack_1grow(obst, *c);
289 static const char *type_to_string(type_t *type)
291 assert(type->kind == TYPE_ATOMIC);
292 return get_atomic_kind_name(type->atomic.akind);
295 static char const* str_lang_standard(lang_standard_t const standard)
298 case STANDARD_C89: return "c89";
299 case STANDARD_C89AMD1: return "iso9899:199409";
300 case STANDARD_C99: return "c99";
301 case STANDARD_GNU89: return "gnu89";
302 case STANDARD_GNU99: return "gnu99";
303 case STANDARD_CXX98: return "c++98";
304 case STANDARD_GNUXX98: return "gnu++98";
305 case STANDARD_ANSI: break;
306 case STANDARD_DEFAULT: break;
308 panic("invalid standard");
311 static bool run_external_preprocessor(compilation_unit_t *unit)
313 static const char *common_flags = NULL;
315 if (common_flags == NULL) {
316 obstack_1grow(&cppflags_obst, '\0');
317 const char *flags = obstack_finish(&cppflags_obst);
319 /* setup default defines */
320 add_flag(&cppflags_obst, "-U__WCHAR_TYPE__");
321 add_flag(&cppflags_obst, "-D__WCHAR_TYPE__=%s", type_to_string(type_wchar_t));
322 add_flag(&cppflags_obst, "-U__SIZE_TYPE__");
323 add_flag(&cppflags_obst, "-D__SIZE_TYPE__=%s", type_to_string(type_size_t));
325 add_flag(&cppflags_obst, "-U__VERSION__");
326 add_flag(&cppflags_obst, "-D__VERSION__=\"%s\"", cparser_REVISION);
328 if (define_intmax_types) {
329 add_flag(&cppflags_obst, "-U__INTMAX_TYPE__");
330 add_flag(&cppflags_obst, "-D__INTMAX_TYPE__=%s", type_to_string(type_intmax_t));
331 add_flag(&cppflags_obst, "-U__UINTMAX_TYPE__");
332 add_flag(&cppflags_obst, "-D__UINTMAX_TYPE__=%s", type_to_string(type_uintmax_t));
335 if (flags[0] != '\0') {
336 size_t len = strlen(flags);
337 obstack_1grow(&cppflags_obst, ' ');
338 obstack_grow(&cppflags_obst, flags, len);
340 obstack_1grow(&cppflags_obst, '\0');
341 common_flags = obstack_finish(&cppflags_obst);
344 assert(obstack_object_size(&cppflags_obst) == 0);
346 const char *preprocessor = getenv("CPARSER_PP");
347 if (preprocessor != NULL) {
348 obstack_printf(&cppflags_obst, "%s ", preprocessor);
350 if (target_triple != NULL)
351 obstack_printf(&cppflags_obst, "%s-", target_triple);
352 obstack_printf(&cppflags_obst, "%s", external_preprocessor);
356 switch (unit->type) {
357 case COMPILATION_UNIT_C: lang = "c"; break;
358 case COMPILATION_UNIT_CXX: lang = "c++"; break;
359 case COMPILATION_UNIT_ASSEMBLER: lang = "assembler-with-cpp"; break;
360 default: lang = NULL; break;
363 add_flag(&cppflags_obst, "-x%s", lang);
365 add_flag(&cppflags_obst, "-std=%s", str_lang_standard(unit->standard));
367 obstack_printf(&cppflags_obst, "%s", common_flags);
369 /* handle dependency generation */
370 if (dep_target[0] != '\0') {
371 add_flag(&cppflags_obst, "-MF");
372 add_flag(&cppflags_obst, dep_target);
373 if (outname != NULL) {
374 add_flag(&cppflags_obst, "-MQ");
375 add_flag(&cppflags_obst, outname);
378 assert(unit->input == NULL);
379 add_flag(&cppflags_obst, unit->name);
380 obstack_1grow(&cppflags_obst, '\0');
382 char *commandline = obstack_finish(&cppflags_obst);
386 FILE *f = popen(commandline, "r");
388 fprintf(stderr, "invoking preprocessor failed\n");
391 /* we do not really need that anymore */
392 obstack_free(&cppflags_obst, commandline);
395 unit->input_is_pipe = true;
396 switch (unit->type) {
397 case COMPILATION_UNIT_ASSEMBLER:
398 unit->type = COMPILATION_UNIT_PREPROCESSED_ASSEMBLER;
400 case COMPILATION_UNIT_C:
401 unit->type = COMPILATION_UNIT_PREPROCESSED_C;
403 case COMPILATION_UNIT_CXX:
404 unit->type = COMPILATION_UNIT_PREPROCESSED_CXX;
407 unit->type = COMPILATION_UNIT_UNKNOWN;
414 static void assemble(const char *out, const char *in)
416 obstack_1grow(&asflags_obst, '\0');
417 const char *flags = obstack_finish(&asflags_obst);
419 const char *assembler = getenv("CPARSER_AS");
420 if (assembler != NULL) {
421 obstack_printf(&asflags_obst, "%s", assembler);
423 if (target_triple != NULL)
424 obstack_printf(&asflags_obst, "%s-", target_triple);
425 obstack_printf(&asflags_obst, "%s", ASSEMBLER);
427 if (flags[0] != '\0')
428 obstack_printf(&asflags_obst, " %s", flags);
430 obstack_printf(&asflags_obst, " %s -o %s", in, out);
431 obstack_1grow(&asflags_obst, '\0');
433 char *commandline = obstack_finish(&asflags_obst);
437 int err = system(commandline);
438 if (err != EXIT_SUCCESS) {
439 fprintf(stderr, "assembler reported an error\n");
442 obstack_free(&asflags_obst, commandline);
445 static void print_file_name(const char *file)
447 add_flag(&ldflags_obst, "-print-file-name=%s", file);
449 obstack_1grow(&ldflags_obst, '\0');
450 const char *flags = obstack_finish(&ldflags_obst);
452 /* construct commandline */
453 const char *linker = getenv("CPARSER_LINK");
454 if (linker != NULL) {
455 obstack_printf(&ldflags_obst, "%s ", linker);
457 if (target_triple != NULL)
458 obstack_printf(&ldflags_obst, "%s-", target_triple);
459 obstack_printf(&ldflags_obst, "%s ", LINKER);
461 obstack_printf(&ldflags_obst, "%s ", linker);
462 obstack_printf(&ldflags_obst, "%s", flags);
463 obstack_1grow(&ldflags_obst, '\0');
465 char *commandline = obstack_finish(&ldflags_obst);
469 int err = system(commandline);
470 if (err != EXIT_SUCCESS) {
471 fprintf(stderr, "linker reported an error\n");
474 obstack_free(&ldflags_obst, commandline);
477 static const char *try_dir(const char *dir)
481 if (access(dir, R_OK | W_OK | X_OK) == 0)
486 static const char *get_tempdir(void)
488 static const char *tmpdir = NULL;
494 tmpdir = try_dir(getenv("TMPDIR"));
496 tmpdir = try_dir(getenv("TMP"));
498 tmpdir = try_dir(getenv("TEMP"));
502 tmpdir = try_dir(P_tmpdir);
506 tmpdir = try_dir("/var/tmp");
508 tmpdir = try_dir("/usr/tmp");
510 tmpdir = try_dir("/tmp");
519 /* cheap and nasty mkstemp replacement */
520 static int mkstemp(char *templ)
523 return open(templ, O_RDWR|O_CREAT|O_EXCL|O_BINARY, 0600);
528 * custom version of tmpnam, which: writes to an obstack, emits no warnings
529 * during linking (like glibc/gnu ld do for tmpnam)...
531 static FILE *make_temp_file(const char *prefix, const char **name_result)
533 const char *tempdir = get_tempdir();
534 assert(obstack_object_size(&file_obst) == 0);
535 obstack_printf(&file_obst, "%s/%sXXXXXX", tempdir, prefix);
536 obstack_1grow(&file_obst, '\0');
538 char *name = obstack_finish(&file_obst);
539 int fd = mkstemp(name);
541 fprintf(stderr, "could not create temporary file: %s\n",
545 FILE *out = fdopen(fd, "w");
547 fprintf(stderr, "could not open temporary file as FILE*\n");
551 ARR_APP1(char*, temp_files, name);
556 static void free_temp_files(void)
558 size_t n_temp_files = ARR_LEN(temp_files);
560 for (i = 0; i < n_temp_files; ++i) {
561 char *file = temp_files[i];
564 DEL_ARR_F(temp_files);
568 typedef enum compile_mode_t {
582 static void usage(const char *argv0)
584 fprintf(stderr, "Usage %s [options] input [-o output]\n", argv0);
587 static void print_cparser_version(void)
589 printf("cparser (%s) using libFirm (%u.%u",
590 cparser_REVISION, ir_get_version_major(),
591 ir_get_version_minor());
593 const char *revision = ir_get_version_revision();
594 if (revision[0] != 0) {
596 fputs(revision, stdout);
599 const char *build = ir_get_version_build();
602 fputs(build, stdout);
605 puts("This is free software; see the source for copying conditions. There is NO\n"
606 "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n");
609 static void print_cparser_version_short(void)
611 puts(cparser_REVISION);
614 static void print_help_basic(const char *argv0)
618 put_help("--help", "Display this information");
619 put_help("--version", "Display compiler version");
620 put_help("--help-parser", "Display information about parser options");
621 put_help("--help-warnings", "Display information about warning options");
622 put_help("--help-codegen", "Display information about code-generation options");
623 put_help("--help-optimization", "Display information about optimization options");
624 put_help("--help-linker", "Display information about linker options");
625 put_help("--help-language-tools", "Display information about language tools options");
626 put_help("--help-debug", "Display information about compiler debugging options");
627 put_help("--help-firm", "Display information about direct firm options");
628 put_help("--help-all", "Display information about all options");
629 put_help("-c", "Compile and assemble but do not link");
630 put_help("-E", "Preprocess only");
631 put_help("-S", "Compile but do not assembler or link");
632 put_help("-o", "Specify output file");
633 put_help("-v", "Verbose output (show invocation of sub-processes)");
634 put_help("-x", "Force input language:");
635 put_choice("c", "C");
636 put_choice("c++", "C++");
637 put_choice("assembler", "Assembler (no preprocessing)");
638 put_choice("assembler-with-cpp", "Assembler with preprocessing");
639 put_choice("none", "Autodetection");
640 put_help("-pipe", "Ignored (gcc compatibility)");
643 static void print_help_preprocessor(void)
645 put_help("-nostdinc", "Do not search standard system include directories");
646 put_help("-trigraphs", "Support ISO C trigraphs");
647 put_help("-isystem", "");
648 put_help("-include", "");
649 put_help("-I PATH", "");
650 put_help("-D SYMBOL[=value]", "");
651 put_help("-U SYMBOL", "");
652 put_help("-Wp,OPTION", "Pass option directly to preprocessor");
655 put_help("-MMD", "");
663 static void print_help_parser(void)
665 put_help("-finput-charset=CHARSET", "Select encoding of input files");
666 put_help("-fmessage-length=LEN", "Ignored (gcc compatibility)");
667 put_help("-fshort-wchar", "Type \"wchar_t\" is unsigned short instead of int");
668 put_help("-fshow-column", "Show the column number in diagnostic messages");
669 put_help("-fsigned-char", "Type \"char\" is a signed type");
670 put_help("-funsigned-char", "Type \"char\" is an unsigned type");
671 put_help("--ms", "Enable msvc extensions");
672 put_help("--no-ms", "Disable msvc extensions");
673 put_help("--gcc", "Enable gcc extensions");
674 put_help("--no-gcc", "Disable gcc extensions");
675 put_help("-std=STANDARD", "Specify language standard:");
676 put_choice("c99", "ISO C99 standard");
677 put_choice("c89", "ISO C89 standard");
678 put_choice("c90", "Same as -std=c89");
679 put_choice("c9x", "Deprecated");
680 put_choice("c++", "ISO C++ 98");
681 put_choice("c++98", "ISO C++ 98");
682 put_choice("gnu99", "ISO C99 + GNU extensions (default)");
683 put_choice("gnu89", "ISO C89 + GNU extensions");
684 put_choice("gnu9x", "Deprecated");
685 put_choice("iso9899:1990", "ISO C89");
686 put_choice("iso9899:199409", "ISO C90");
687 put_choice("iso9899:1999", "ISO C99");
688 put_choice("iso9899:199x", "Deprecated");
689 put_help("-pedantic", "Ignored (gcc compatibility)");
690 put_help("-ansi", "-std=c90 (for C) or -std=c++98 (for C++)");
691 put_help("--strict", "Enable strict conformance checking");
694 static void print_help_warnings(void)
696 put_help("-f[no-]diagnostics-show-option", "Show the switch, which controls a warning, after each warning");
697 put_help("-w", "Disable all warnings");
698 put_help("-Wno-trigraphs", "Warn if input contains trigraphs");
699 put_help("-Wundef", "Warn if an undefined macro is used in an #if");
700 put_help("-Wmissing-include-dirs", "Warn about missing user-specified include directories");
701 put_help("-Wendif-labels", "Warn about stray text after #elif and #endif");
702 put_help("-Winit-self", "Ignored (gcc compatibility)");
703 put_help("-Wformat-y2k", "Ignored (gcc compatibility)");
704 put_help("-Wformat-security", "Ignored (gcc compatibility)");
705 put_help("-Wold-style-declaration", "Ignored (gcc compatibility)");
706 put_help("-Wtype-limits", "Ignored (gcc compatibility)");
707 print_warning_opt_help();
710 static void print_help_optimization(void)
712 put_help("-O LEVEL", "Select optimization level (0-4)");
713 firm_option_help(put_help);
714 put_help("-fexpensive-optimizations","Ignored (gcc compatibility)");
717 static void print_help_codegeneration(void)
719 put_help("-g", "Generate debug information");
720 put_help("-pg", "Instrument code for gnu gprof");
721 put_help("-fomit-frame-pointer", "Produce code without frame pointer where possible");
722 put_help("-ffreestanding", "Compile in freestanding mode (see ISO C standard)");
723 put_help("-fhosted", "Compile in hosted (not freestanding) mode");
724 put_help("-fprofile-generate", "Generate instrumented code to collect profile information");
725 put_help("-fprofile-use", "Use profile information generated by instrumented binaries");
726 put_help("-ffp-precise", "Precise floating point model");
727 put_help("-ffp-fast", "Imprecise floating point model");
728 put_help("-ffp-strict", "Strict floating point model");
729 put_help("-pthread", "Use pthread threading library");
730 put_help("-mtarget=TARGET", "Specify target architecture as CPU-manufacturer-OS triple");
731 put_help("-mtriple=TARGET", "Alias for -mtarget (clang compatibility)");
732 put_help("-march=ARCH", "");
733 put_help("-mtune=ARCH", "");
734 put_help("-mcpu=CPU", "");
735 put_help("-mfpmath=", "");
736 put_help("-mpreferred-stack-boundary=", "");
737 put_help("-mrtd", "");
738 put_help("-mregparm=", "Not supported yet");
739 put_help("-msoft-float", "Not supported yet");
740 put_help("-m32", "Generate 32bit code");
741 put_help("-m64", "Generate 64bit code");
742 put_help("-fverbose-asm", "Ignored (gcc compatibility)");
743 put_help("-fjump-tables", "Ignored (gcc compatibility)");
744 put_help("-fcommon", "Ignored (gcc compatibility)");
745 put_help("-foptimize-sibling-calls", "Ignored (gcc compatibility)");
746 put_help("-falign-loops", "Ignored (gcc compatibility)");
747 put_help("-falign-jumps", "Ignored (gcc compatibility)");
748 put_help("-falign-functions", "Ignored (gcc compatibility)");
749 put_help("-fPIC", "Ignored (gcc compatibility)");
750 put_help("-ffast-math", "Same as -ffp-fast (gcc compatibility)");
752 puts("\tMost of these options can be used with a no- prefix to disable them");
753 puts("\te.g. -fno-omit-frame-pointer");
756 static void print_help_linker(void)
758 put_help("-l LIBRARY", "");
759 put_help("-L PATH", "");
760 put_help("-s", "Do not produce symbol table and relocation information");
761 put_help("-shared", "Produce a shared library");
762 put_help("-static", "Produce statically linked binary");
763 put_help("-Wl,OPTION", "Pass option directly to linker");
766 static void print_help_debug(void)
768 put_help("--print-ast", "Preprocess, parse and print AST");
769 put_help("--print-implicit-cast", "");
770 put_help("--print-parenthesis", "");
771 put_help("--benchmark", "Preprocess and parse, produces no output");
772 put_help("--time", "Measure time of compiler passes");
773 put_help("--dump-function func", "Preprocess, parse and output vcg graph of func");
774 put_help("--export-ir", "Preprocess, parse and output compiler intermediate representation");
777 static void print_help_language_tools(void)
779 put_help("--print-fluffy", "Preprocess, parse and generate declarations for the fluffy language");
780 put_help("--print-jna", "Preprocess, parse and generate declarations for JNA");
781 put_help("--jna-limit filename", "");
782 put_help("--jna-libname name", "");
785 static void print_help_firm(void)
787 put_help("-bOPTION", "Directly pass option to libFirm backend");
788 int res = be_parse_arg("help");
796 HELP_PREPROCESSOR = 1 << 1,
797 HELP_PARSER = 1 << 2,
798 HELP_WARNINGS = 1 << 3,
799 HELP_OPTIMIZATION = 1 << 4,
800 HELP_CODEGEN = 1 << 5,
801 HELP_LINKER = 1 << 6,
802 HELP_LANGUAGETOOLS = 1 << 7,
809 static void print_help(const char *argv0, help_sections_t sections)
811 if (sections & HELP_BASIC) print_help_basic(argv0);
812 if (sections & HELP_PREPROCESSOR) print_help_preprocessor();
813 if (sections & HELP_PARSER) print_help_parser();
814 if (sections & HELP_WARNINGS) print_help_warnings();
815 if (sections & HELP_OPTIMIZATION) print_help_optimization();
816 if (sections & HELP_CODEGEN) print_help_codegeneration();
817 if (sections & HELP_LINKER) print_help_linker();
818 if (sections & HELP_LANGUAGETOOLS) print_help_language_tools();
819 if (sections & HELP_DEBUG) print_help_debug();
820 if (sections & HELP_FIRM) print_help_firm();
823 static void set_be_option(const char *arg)
825 int res = be_parse_arg(arg);
830 static compilation_unit_type_t get_unit_type_from_string(const char *string)
832 if (streq(string, "c") || streq(string, "c-header"))
833 return COMPILATION_UNIT_C;
834 if (streq(string, "c++") || streq(string, "c++-header"))
835 return COMPILATION_UNIT_CXX;
836 if (streq(string, "assembler"))
837 return COMPILATION_UNIT_PREPROCESSED_ASSEMBLER;
838 if (streq(string, "assembler-with-cpp"))
839 return COMPILATION_UNIT_ASSEMBLER;
840 if (streq(string, "none"))
841 return COMPILATION_UNIT_AUTODETECT;
843 return COMPILATION_UNIT_UNKNOWN;
846 static bool init_os_support(void)
848 wchar_atomic_kind = ATOMIC_TYPE_INT;
849 enable_main_collect2_hack = false;
850 define_intmax_types = false;
852 if (firm_is_unixish_os(target_machine)) {
853 set_create_ld_ident(create_name_linux_elf);
854 } else if (firm_is_darwin_os(target_machine)) {
855 set_create_ld_ident(create_name_macho);
856 define_intmax_types = true;
857 } else if (firm_is_windows_os(target_machine)) {
858 wchar_atomic_kind = ATOMIC_TYPE_USHORT;
859 enable_main_collect2_hack = true;
860 set_create_ld_ident(create_name_win32);
868 static bool parse_target_triple(const char *arg)
870 machine_triple_t *triple = firm_parse_machine_triple(arg);
871 if (triple == NULL) {
872 fprintf(stderr, "Target-triple is not in the form 'cpu_type-manufacturer-operating_system'\n");
875 target_machine = triple;
879 static unsigned decide_modulo_shift(unsigned type_size)
881 if (architecture_modulo_shift == 0)
883 if (type_size < architecture_modulo_shift)
884 return architecture_modulo_shift;
888 static bool is_ia32_cpu(const char *architecture)
890 return streq(architecture, "i386")
891 || streq(architecture, "i486")
892 || streq(architecture, "i586")
893 || streq(architecture, "i686")
894 || streq(architecture, "i786");
897 static const char *setup_isa_from_tripel(const machine_triple_t *machine)
899 const char *cpu = machine->cpu_type;
901 if (is_ia32_cpu(cpu)) {
903 } else if (streq(cpu, "x86_64")) {
905 } else if (streq(cpu, "sparc")) {
907 } else if (streq(cpu, "arm")) {
910 fprintf(stderr, "Unknown cpu '%s' in target-triple\n", cpu);
915 static const char *setup_target_machine(void)
917 if (!setup_firm_for_machine(target_machine))
920 const char *isa = setup_isa_from_tripel(target_machine);
931 * initialize cparser type properties based on a firm type
933 static void set_typeprops_type(atomic_type_properties_t* props, ir_type *type)
935 props->size = get_type_size_bytes(type);
936 props->alignment = get_type_alignment_bytes(type);
937 props->struct_alignment = props->alignment;
941 * Copy atomic type properties except the integer conversion rank
943 static void copy_typeprops(atomic_type_properties_t *dest,
944 const atomic_type_properties_t *src)
946 dest->size = src->size;
947 dest->alignment = src->alignment;
948 dest->struct_alignment = src->struct_alignment;
949 dest->flags = src->flags;
952 static void init_types_and_adjust(void)
954 const backend_params *be_params = be_get_backend_param();
955 unsigned machine_size = be_params->machine_size;
956 init_types(machine_size);
958 atomic_type_properties_t *props = atomic_type_properties;
960 /* adjust types as requested by target architecture */
961 ir_type *type_long_double = be_params->type_long_double;
962 if (type_long_double != NULL) {
963 set_typeprops_type(&props[ATOMIC_TYPE_LONG_DOUBLE], type_long_double);
964 atomic_modes[ATOMIC_TYPE_LONG_DOUBLE] = get_type_mode(type_long_double);
967 ir_type *type_long_long = be_params->type_long_long;
968 if (type_long_long != NULL)
969 set_typeprops_type(&props[ATOMIC_TYPE_LONGLONG], type_long_long);
971 ir_type *type_unsigned_long_long = be_params->type_unsigned_long_long;
972 if (type_unsigned_long_long != NULL)
973 set_typeprops_type(&props[ATOMIC_TYPE_ULONGLONG], type_unsigned_long_long);
975 /* operating system ABI specifics */
976 if (firm_is_darwin_os(target_machine)) {
977 if (machine_size == 32) {
978 props[ATOMIC_TYPE_LONGLONG].struct_alignment = 4;
979 props[ATOMIC_TYPE_ULONGLONG].struct_alignment = 4;
980 props[ATOMIC_TYPE_DOUBLE].struct_alignment = 4;
981 props[ATOMIC_TYPE_LONG_DOUBLE].size = 16;
982 props[ATOMIC_TYPE_LONG_DOUBLE].alignment = 16;
983 props[ATOMIC_TYPE_LONG_DOUBLE].struct_alignment = 16;
985 } else if (firm_is_windows_os(target_machine)) {
986 if (machine_size == 64) {
987 /* to ease porting of old c-code microsoft decided to use 32bits
989 props[ATOMIC_TYPE_LONG] = props[ATOMIC_TYPE_INT];
990 props[ATOMIC_TYPE_ULONG] = props[ATOMIC_TYPE_UINT];
993 /* on windows long double is not supported */
994 props[ATOMIC_TYPE_LONG_DOUBLE] = props[ATOMIC_TYPE_DOUBLE];
995 } else if (firm_is_unixish_os(target_machine)) {
996 if (is_ia32_cpu(target_machine->cpu_type)) {
997 /* System V has a broken alignment for double so we have to add
999 props[ATOMIC_TYPE_DOUBLE].struct_alignment = 4;
1000 props[ATOMIC_TYPE_LONGLONG].struct_alignment = 4;
1001 props[ATOMIC_TYPE_ULONGLONG].struct_alignment = 4;
1005 /* stuff decided after processing operating system specifics and
1006 * commandline flags */
1007 if (char_is_signed) {
1008 props[ATOMIC_TYPE_CHAR].flags |= ATOMIC_TYPE_FLAG_SIGNED;
1010 props[ATOMIC_TYPE_CHAR].flags &= ~ATOMIC_TYPE_FLAG_SIGNED;
1012 /* copy over wchar_t properties (including rank) */
1013 props[ATOMIC_TYPE_WCHAR_T] = props[wchar_atomic_kind];
1015 /* initialize defaults for unsupported types */
1016 if (type_long_long == NULL) {
1017 copy_typeprops(&props[ATOMIC_TYPE_LONGLONG], &props[ATOMIC_TYPE_LONG]);
1019 if (type_unsigned_long_long == NULL) {
1020 copy_typeprops(&props[ATOMIC_TYPE_ULONGLONG],
1021 &props[ATOMIC_TYPE_ULONG]);
1023 if (type_long_double == NULL) {
1024 copy_typeprops(&props[ATOMIC_TYPE_LONG_DOUBLE],
1025 &props[ATOMIC_TYPE_DOUBLE]);
1028 /* initialize firm pointer modes */
1030 unsigned bit_size = machine_size;
1031 unsigned modulo_shift = decide_modulo_shift(bit_size);
1033 snprintf(name, sizeof(name), "p%u", machine_size);
1034 ir_mode *ptr_mode = new_reference_mode(name, irma_twos_complement, bit_size, modulo_shift);
1036 if (machine_size == 16) {
1037 set_reference_mode_signed_eq(ptr_mode, mode_Hs);
1038 set_reference_mode_unsigned_eq(ptr_mode, mode_Hu);
1039 } else if (machine_size == 32) {
1040 set_reference_mode_signed_eq(ptr_mode, mode_Is);
1041 set_reference_mode_unsigned_eq(ptr_mode, mode_Iu);
1042 } else if (machine_size == 64) {
1043 set_reference_mode_signed_eq(ptr_mode, mode_Ls);
1044 set_reference_mode_unsigned_eq(ptr_mode, mode_Lu);
1046 panic("strange machine_size when determining pointer modes");
1049 /* Hmm, pointers should be machine size */
1050 set_modeP_data(ptr_mode);
1051 set_modeP_code(ptr_mode);
1053 byte_order_big_endian = be_params->byte_order_big_endian;
1054 if (be_params->modulo_shift_efficient) {
1055 architecture_modulo_shift = machine_size;
1057 architecture_modulo_shift = 0;
1061 static void setup_cmode(const compilation_unit_t *unit)
1063 compilation_unit_type_t type = unit->type;
1064 lang_standard_t standard = unit->standard;
1065 if (type == COMPILATION_UNIT_PREPROCESSED_C || type == COMPILATION_UNIT_C) {
1067 case STANDARD_C89: c_mode = _C89; break;
1068 /* TODO determine difference between these two */
1069 case STANDARD_C89AMD1: c_mode = _C89; break;
1070 case STANDARD_C99: c_mode = _C89 | _C99; break;
1071 case STANDARD_GNU89: c_mode = _C89 | _GNUC; break;
1074 case STANDARD_CXX98:
1075 case STANDARD_GNUXX98:
1076 case STANDARD_DEFAULT:
1077 fprintf(stderr, "warning: command line option \"-std=%s\" is not valid for C\n", str_lang_standard(standard));
1079 case STANDARD_GNU99: c_mode = _C89 | _C99 | _GNUC; break;
1081 } else if (type == COMPILATION_UNIT_PREPROCESSED_CXX
1082 || type == COMPILATION_UNIT_CXX) {
1084 case STANDARD_CXX98: c_mode = _CXX; break;
1088 case STANDARD_C89AMD1:
1090 case STANDARD_GNU89:
1091 case STANDARD_GNU99:
1092 case STANDARD_DEFAULT:
1093 fprintf(stderr, "warning: command line option \"-std=%s\" is not valid for C++\n", str_lang_standard(standard));
1095 case STANDARD_GNUXX98: c_mode = _CXX | _GNUC; break;
1099 c_mode |= features_on;
1100 c_mode &= ~features_off;
1103 static void determine_unit_standard(compilation_unit_t *unit,
1104 lang_standard_t standard)
1106 unit->standard = standard;
1109 switch (unit->type) {
1110 case COMPILATION_UNIT_C:
1111 case COMPILATION_UNIT_PREPROCESSED_C:
1112 unit->standard = STANDARD_C89;
1114 case COMPILATION_UNIT_CXX:
1115 case COMPILATION_UNIT_PREPROCESSED_CXX:
1116 unit->standard = STANDARD_CXX98;
1123 case STANDARD_DEFAULT:
1124 switch (unit->type) {
1125 case COMPILATION_UNIT_C:
1126 case COMPILATION_UNIT_PREPROCESSED_C:
1127 unit->standard = STANDARD_GNU99;
1129 case COMPILATION_UNIT_CXX:
1130 case COMPILATION_UNIT_PREPROCESSED_CXX:
1131 unit->standard = STANDARD_GNUXX98;
1143 static bool output_preprocessor_tokens(compilation_unit_t *unit, FILE *out)
1145 /* just here for gcc compatibility */
1146 fprintf(out, "# 1 \"%s\"\n", unit->name);
1147 fprintf(out, "# 1 \"<built-in>\"\n");
1148 fprintf(out, "# 1 \"<command-line>\"\n");
1150 set_preprocessor_output(out);
1151 switch_pp_input(unit->input, unit->name);
1154 next_preprocessing_token();
1155 if (pp_token.kind == T_EOF)
1161 check_unclosed_conditionals();
1163 print_error_summary();
1164 set_preprocessor_output(NULL);
1166 if (unit->type == COMPILATION_UNIT_C) {
1167 unit->type = COMPILATION_UNIT_PREPROCESSED_C;
1168 } else if (unit->type == COMPILATION_UNIT_CXX) {
1169 unit->type = COMPILATION_UNIT_PREPROCESSED_CXX;
1171 bool res = close_input(unit);
1172 return res && error_count == 0;
1175 static bool open_input(compilation_unit_t *unit)
1177 /* input already available as FILE? */
1178 if (unit->input != NULL)
1181 const char *const inputname = unit->name;
1182 unit->input_is_pipe = false;
1183 if (streq(inputname, "-")) {
1184 unit->input = stdin;
1186 unit->input = fopen(inputname, "r");
1187 if (unit->input == NULL) {
1188 fprintf(stderr, "Could not open '%s': %s\n", inputname,
1196 static int compilation_loop(compile_mode_t mode, compilation_unit_t *units,
1197 lang_standard_t standard, FILE *out)
1199 int result = EXIT_SUCCESS;
1200 bool already_constructed_firm = false;
1201 for (compilation_unit_t *unit = units; unit != NULL; unit = unit->next) {
1202 const char *const inputname = unit->name;
1204 determine_unit_standard(unit, standard);
1208 switch (unit->type) {
1209 case COMPILATION_UNIT_IR: {
1210 bool res = open_input(unit);
1212 result = EXIT_FAILURE;
1215 res = !ir_import_file(unit->input, unit->name);
1217 fprintf(stderr, "Import of firm graph from '%s' failed\n",
1219 result = EXIT_FAILURE;
1222 unit->type = COMPILATION_UNIT_INTERMEDIATE_REPRESENTATION;
1225 case COMPILATION_UNIT_ASSEMBLER:
1226 panic("TODO: preprocess for assembler");
1227 case COMPILATION_UNIT_C:
1228 case COMPILATION_UNIT_CXX:
1229 if (external_preprocessor != NULL) {
1230 bool res = run_external_preprocessor(unit);
1232 result = EXIT_FAILURE;
1239 case COMPILATION_UNIT_PREPROCESSED_C:
1240 case COMPILATION_UNIT_PREPROCESSED_CXX: {
1241 bool res = open_input(unit);
1243 result = EXIT_FAILURE;
1248 if (mode == PreprocessOnly) {
1249 bool res = output_preprocessor_tokens(unit, out);
1251 result = EXIT_FAILURE;
1257 /* do the actual parsing */
1261 case COMPILATION_UNIT_AST:
1262 /* prints the AST even if errors occurred */
1263 if (mode == PrintAst) {
1265 print_ast(unit->ast);
1267 if (unit->parse_errors) {
1268 result = EXIT_FAILURE;
1272 if (mode == BenchmarkParser) {
1274 } else if (mode == PrintFluffy) {
1275 write_fluffy_decls(out, unit->ast);
1277 } else if (mode == PrintJna) {
1278 write_jna_decls(out, unit->ast);
1282 /* build the firm graph */
1283 ir_timer_t *t_construct = ir_timer_new();
1284 timer_register(t_construct, "Frontend: Graph construction");
1285 timer_push(t_construct);
1286 if (already_constructed_firm) {
1287 panic("compiling multiple files/translation units not possible");
1289 init_implicit_optimizations();
1290 translation_unit_to_firm(unit->ast);
1291 already_constructed_firm = true;
1292 timer_pop(t_construct);
1293 unit->type = COMPILATION_UNIT_INTERMEDIATE_REPRESENTATION;
1296 case COMPILATION_UNIT_INTERMEDIATE_REPRESENTATION:
1297 if (mode == CompileDump) {
1299 ident *id = new_id_from_str(dumpfunction);
1300 ir_graph *irg = NULL;
1301 int n_irgs = get_irp_n_irgs();
1302 for (int i = 0; i < n_irgs; ++i) {
1303 ir_graph *tirg = get_irp_irg(i);
1304 ident *irg_id = get_entity_ident(get_irg_entity(tirg));
1312 fprintf(stderr, "No graph for function '%s' found\n",
1314 return EXIT_FAILURE;
1317 dump_ir_graph_file(out, irg);
1319 return EXIT_SUCCESS;
1322 if (mode == CompileExportIR) {
1323 ir_export_file(out);
1324 if (ferror(out) != 0) {
1325 fprintf(stderr, "Error while writing to output\n");
1326 return EXIT_FAILURE;
1328 return EXIT_SUCCESS;
1332 if (mode == Compile) {
1335 asm_out = make_temp_file("ccs", &unit->name);
1337 generate_code(asm_out, inputname);
1338 if (asm_out != out) {
1341 unit->type = COMPILATION_UNIT_PREPROCESSED_ASSEMBLER;
1343 case COMPILATION_UNIT_PREPROCESSED_ASSEMBLER:
1344 if (mode != CompileAssemble && mode != CompileAssembleLink)
1348 const char *input = unit->name;
1349 if (mode == CompileAssemble) {
1351 unit->name = outname;
1353 FILE *tempf = make_temp_file("cco", &unit->name);
1358 assemble(unit->name, input);
1360 unit->type = COMPILATION_UNIT_OBJECT;
1362 case COMPILATION_UNIT_UNKNOWN:
1363 case COMPILATION_UNIT_AUTODETECT:
1364 case COMPILATION_UNIT_OBJECT:
1371 static int link_program(compilation_unit_t *units)
1373 obstack_1grow(&ldflags_obst, '\0');
1374 const char *flags = obstack_finish(&ldflags_obst);
1376 /* construct commandline */
1377 const char *linker = getenv("CPARSER_LINK");
1378 if (linker != NULL) {
1379 obstack_printf(&file_obst, "%s ", linker);
1381 if (target_triple != NULL)
1382 obstack_printf(&file_obst, "%s-", target_triple);
1383 obstack_printf(&file_obst, "%s ", LINKER);
1386 for (compilation_unit_t *unit = units; unit != NULL; unit = unit->next) {
1387 if (unit->type != COMPILATION_UNIT_OBJECT)
1390 add_flag(&file_obst, "%s", unit->name);
1393 add_flag(&file_obst, "-o");
1394 add_flag(&file_obst, outname);
1395 obstack_printf(&file_obst, "%s", flags);
1396 obstack_1grow(&file_obst, '\0');
1398 char *commandline = obstack_finish(&file_obst);
1403 int err = system(commandline);
1404 if (err != EXIT_SUCCESS) {
1405 fprintf(stderr, "linker reported an error\n");
1406 return EXIT_FAILURE;
1408 return EXIT_SUCCESS;
1411 int main(int argc, char **argv)
1413 const char *print_file_name_file = NULL;
1414 compile_mode_t mode = CompileAssembleLink;
1416 char cpu_arch[16] = "ia32";
1417 compilation_unit_t *units = NULL;
1418 compilation_unit_t *last_unit = NULL;
1419 bool construct_dep_target = false;
1420 bool do_timing = false;
1421 bool profile_generate = false;
1422 bool profile_use = false;
1424 /* hack for now... */
1425 if (strstr(argv[0], "pptest") != NULL) {
1426 extern int pptest_main(int argc, char **argv);
1427 return pptest_main(argc, argv);
1430 temp_files = NEW_ARR_F(char*, 0);
1431 atexit(free_temp_files);
1433 obstack_init(&cppflags_obst);
1434 obstack_init(&ldflags_obst);
1435 obstack_init(&asflags_obst);
1436 obstack_init(&file_obst);
1438 #define GET_ARG_AFTER(def, args) \
1440 def = &arg[sizeof(args)-1]; \
1441 if (def[0] == '\0') { \
1444 fprintf(stderr, "error: expected argument after '" args "'\n"); \
1445 argument_errors = true; \
1449 if (def[0] == '-' && def[1] != '\0') { \
1450 fprintf(stderr, "error: expected argument after '" args "'\n"); \
1451 argument_errors = true; \
1457 #define SINGLE_OPTION(ch) (option[0] == (ch) && option[1] == '\0')
1459 /* initialize this early because it has to parse options */
1462 /* early options parsing (find out optimization level and OS) */
1463 for (int i = 1; i < argc; ++i) {
1464 const char *arg = argv[i];
1468 const char *option = &arg[1];
1469 if (option[0] == 'O') {
1470 sscanf(&option[1], "%d", &opt_level);
1474 if (target_machine == NULL) {
1475 target_machine = firm_get_host_machine();
1477 choose_optimization_pack(opt_level);
1478 setup_target_machine();
1480 /* parse rest of options */
1481 lang_standard_t standard = STANDARD_DEFAULT;
1482 compilation_unit_type_t forced_unittype = COMPILATION_UNIT_AUTODETECT;
1483 help_sections_t help = HELP_NONE;
1484 bool argument_errors = false;
1485 for (int i = 1; i < argc; ++i) {
1486 const char *arg = argv[i];
1487 if (arg[0] == '-' && arg[1] != '\0') {
1489 const char *option = &arg[1];
1490 if (option[0] == 'o') {
1491 GET_ARG_AFTER(outname, "-o");
1492 } else if (option[0] == 'g') {
1493 /* TODO: parse -gX with 0<=x<=3... */
1494 set_be_option("debug=frameinfo");
1495 set_be_option("ia32-nooptcc=yes");
1496 } else if (SINGLE_OPTION('c')) {
1497 mode = CompileAssemble;
1498 } else if (SINGLE_OPTION('E')) {
1499 mode = PreprocessOnly;
1500 } else if (SINGLE_OPTION('s')) {
1501 add_flag(&ldflags_obst, "-s");
1502 } else if (SINGLE_OPTION('S')) {
1504 } else if (option[0] == 'O') {
1506 } else if (option[0] == 'I') {
1508 GET_ARG_AFTER(opt, "-I");
1509 add_flag(&cppflags_obst, "-I%s", opt);
1510 } else if (option[0] == 'D') {
1512 GET_ARG_AFTER(opt, "-D");
1513 add_flag(&cppflags_obst, "-D%s", opt);
1514 } else if (option[0] == 'U') {
1516 GET_ARG_AFTER(opt, "-U");
1517 add_flag(&cppflags_obst, "-U%s", opt);
1518 } else if (option[0] == 'l') {
1520 GET_ARG_AFTER(opt, "-l");
1521 add_flag(&ldflags_obst, "-l%s", opt);
1522 } else if (option[0] == 'L') {
1524 GET_ARG_AFTER(opt, "-L");
1525 add_flag(&ldflags_obst, "-L%s", opt);
1526 } else if (SINGLE_OPTION('v')) {
1528 } else if (SINGLE_OPTION('w')) {
1529 add_flag(&cppflags_obst, "-w");
1530 disable_all_warnings();
1531 } else if (option[0] == 'x') {
1533 GET_ARG_AFTER(opt, "-x");
1534 forced_unittype = get_unit_type_from_string(opt);
1535 if (forced_unittype == COMPILATION_UNIT_UNKNOWN) {
1536 fprintf(stderr, "Unknown language '%s'\n", opt);
1537 argument_errors = true;
1539 } else if (streq(option, "M")) {
1540 mode = PreprocessOnly;
1541 add_flag(&cppflags_obst, "-M");
1542 } else if (streq(option, "MMD") ||
1543 streq(option, "MD")) {
1544 construct_dep_target = true;
1545 add_flag(&cppflags_obst, "-%s", option);
1546 } else if (streq(option, "MM") ||
1547 streq(option, "MP")) {
1548 add_flag(&cppflags_obst, "-%s", option);
1549 } else if (streq(option, "MT") ||
1550 streq(option, "MQ") ||
1551 streq(option, "MF")) {
1553 GET_ARG_AFTER(opt, "-MT");
1554 add_flag(&cppflags_obst, "-%s", option);
1555 add_flag(&cppflags_obst, "%s", opt);
1556 } else if (streq(option, "include")) {
1558 GET_ARG_AFTER(opt, "-include");
1559 add_flag(&cppflags_obst, "-include");
1560 add_flag(&cppflags_obst, "%s", opt);
1561 } else if (streq(option, "isystem")) {
1563 GET_ARG_AFTER(opt, "-isystem");
1564 add_flag(&cppflags_obst, "-isystem");
1565 add_flag(&cppflags_obst, "%s", opt);
1566 } else if (streq(option, "pthread")) {
1567 /* set flags for the preprocessor */
1568 add_flag(&cppflags_obst, "-D_REENTRANT");
1569 /* set flags for the linker */
1570 add_flag(&ldflags_obst, "-lpthread");
1571 } else if (streq(option, "nostdinc")
1572 || streq(option, "trigraphs")) {
1573 /* pass these through to the preprocessor */
1574 add_flag(&cppflags_obst, "%s", arg);
1575 } else if (streq(option, "pipe")) {
1576 /* here for gcc compatibility */
1577 } else if (streq(option, "static")) {
1578 add_flag(&ldflags_obst, "-static");
1579 } else if (streq(option, "shared")) {
1580 add_flag(&ldflags_obst, "-shared");
1581 } else if (option[0] == 'f') {
1582 char const *orig_opt;
1583 GET_ARG_AFTER(orig_opt, "-f");
1585 if (strstart(orig_opt, "input-charset=")) {
1586 char const* const encoding = strchr(orig_opt, '=') + 1;
1587 input_encoding = encoding;
1588 } else if (strstart(orig_opt, "align-loops=") ||
1589 strstart(orig_opt, "align-jumps=") ||
1590 strstart(orig_opt, "align-functions=")) {
1591 fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
1592 } else if (strstart(orig_opt, "visibility=")) {
1593 const char *val = strchr(orig_opt, '=')+1;
1594 elf_visibility_tag_t visibility
1595 = get_elf_visibility_from_string(val);
1596 if (visibility == ELF_VISIBILITY_ERROR) {
1597 fprintf(stderr, "invalid visibility '%s' specified\n",
1599 argument_errors = true;
1601 set_default_visibility(visibility);
1603 } else if (strstart(orig_opt, "message-length=")) {
1604 /* ignore: would only affect error message format */
1605 } else if (streq(orig_opt, "fast-math") ||
1606 streq(orig_opt, "fp-fast")) {
1607 firm_fp_model = fp_model_fast;
1608 } else if (streq(orig_opt, "fp-precise")) {
1609 firm_fp_model = fp_model_precise;
1610 } else if (streq(orig_opt, "fp-strict")) {
1611 firm_fp_model = fp_model_strict;
1612 } else if (streq(orig_opt, "help")) {
1613 fprintf(stderr, "warning: -fhelp is deprecated\n");
1614 help |= HELP_OPTIMIZATION;
1616 /* -f options which have an -fno- variant */
1617 char const *opt = orig_opt;
1618 bool truth_value = true;
1619 if (opt[0] == 'n' && opt[1] == 'o' && opt[2] == '-') {
1620 truth_value = false;
1624 if (streq(opt, "diagnostics-show-option")) {
1625 diagnostics_show_option = truth_value;
1626 } else if (streq(opt, "dollars-in-identifiers")) {
1627 allow_dollar_in_symbol = truth_value;
1628 } else if (streq(opt, "omit-frame-pointer")) {
1629 set_be_option(truth_value ? "omitfp" : "omitfp=no");
1630 } else if (streq(opt, "short-wchar")) {
1631 wchar_atomic_kind = truth_value ? ATOMIC_TYPE_USHORT
1633 } else if (streq(opt, "show-column")) {
1634 show_column = truth_value;
1635 } else if (streq(opt, "signed-char")) {
1636 char_is_signed = truth_value;
1637 } else if (streq(opt, "strength-reduce")) {
1638 /* does nothing, for gcc compatibility (even gcc does
1639 * nothing for this switch anymore) */
1640 } else if (streq(opt, "syntax-only")) {
1641 mode = truth_value ? ParseOnly : CompileAssembleLink;
1642 } else if (streq(opt, "unsigned-char")) {
1643 char_is_signed = !truth_value;
1644 } else if (streq(opt, "freestanding")) {
1645 freestanding = truth_value;
1646 } else if (streq(opt, "hosted")) {
1647 freestanding = !truth_value;
1648 } else if (streq(opt, "profile-generate")) {
1649 profile_generate = truth_value;
1650 } else if (streq(opt, "profile-use")) {
1651 profile_use = truth_value;
1652 } else if (!truth_value &&
1653 streq(opt, "asynchronous-unwind-tables")) {
1654 /* nothing todo, a gcc feature which we do not support
1655 * anyway was deactivated */
1656 } else if (streq(opt, "verbose-asm")) {
1657 /* ignore: we always print verbose assembler */
1658 } else if (streq(opt, "jump-tables") ||
1659 streq(opt, "expensive-optimizations") ||
1660 streq(opt, "common") ||
1661 streq(opt, "optimize-sibling-calls") ||
1662 streq(opt, "align-loops") ||
1663 streq(opt, "align-jumps") ||
1664 streq(opt, "align-functions") ||
1665 streq(opt, "unroll-loops") ||
1666 streq(opt, "PIC") ||
1667 streq(opt, "stack-protector") ||
1668 streq(opt, "stack-protector-all")) {
1669 fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
1671 int res = firm_option(orig_opt);
1673 fprintf(stderr, "error: unknown Firm option '-f%s'\n",
1675 argument_errors = true;
1680 } else if (option[0] == 'b') {
1682 GET_ARG_AFTER(opt, "-b");
1684 if (streq(opt, "help")) {
1685 fprintf(stderr, "warning: -bhelp is deprecated (use --help-firm)\n");
1688 int res = be_parse_arg(opt);
1690 fprintf(stderr, "error: unknown Firm backend option '-b %s'\n",
1692 argument_errors = true;
1693 } else if (strstart(opt, "isa=")) {
1694 strncpy(cpu_arch, opt, sizeof(cpu_arch));
1697 } else if (option[0] == 'W') {
1698 if (strstart(option + 1, "p,")) {
1699 // pass options directly to the preprocessor
1701 GET_ARG_AFTER(opt, "-Wp,");
1702 add_flag(&cppflags_obst, "-Wp,%s", opt);
1703 } else if (strstart(option + 1, "l,")) {
1704 // pass options directly to the linker
1706 GET_ARG_AFTER(opt, "-Wl,");
1707 add_flag(&ldflags_obst, "-Wl,%s", opt);
1708 } else if (streq(option + 1, "no-trigraphs")
1709 || streq(option + 1, "undef")
1710 || streq(option + 1, "missing-include-dirs")
1711 || streq(option + 1, "endif-labels")) {
1712 add_flag(&cppflags_obst, "%s", arg);
1713 } else if (streq(option+1, "init-self")) {
1714 /* ignored (same as gcc does) */
1715 } else if (streq(option+1, "format-y2k")
1716 || streq(option+1, "format-security")
1717 || streq(option+1, "old-style-declaration")
1718 || streq(option+1, "type-limits")) {
1719 /* ignore (gcc compatibility) */
1721 set_warning_opt(&option[1]);
1723 } else if (option[0] == 'm') {
1728 GET_ARG_AFTER(opt, "-m");
1729 if (strstart(opt, "target=")) {
1730 GET_ARG_AFTER(opt, "-mtarget=");
1731 if (!parse_target_triple(opt)) {
1732 argument_errors = true;
1734 const char *isa = setup_target_machine();
1735 strncpy(cpu_arch, isa, sizeof(cpu_arch));
1736 target_triple = opt;
1738 } else if (strstart(opt, "triple=")) {
1739 GET_ARG_AFTER(opt, "-mtriple=");
1740 if (!parse_target_triple(opt)) {
1741 argument_errors = true;
1743 const char *isa = setup_target_machine();
1744 strncpy(cpu_arch, isa, sizeof(cpu_arch));
1745 target_triple = opt;
1747 } else if (strstart(opt, "arch=")) {
1748 GET_ARG_AFTER(opt, "-march=");
1749 snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
1750 int res = be_parse_arg(arch_opt);
1751 snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
1752 res &= be_parse_arg(arch_opt);
1755 fprintf(stderr, "Unknown architecture '%s'\n", arch_opt);
1756 argument_errors = true;
1758 } else if (strstart(opt, "tune=")) {
1759 GET_ARG_AFTER(opt, "-mtune=");
1760 snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
1761 int res = be_parse_arg(arch_opt);
1763 argument_errors = true;
1764 } else if (strstart(opt, "cpu=")) {
1765 GET_ARG_AFTER(opt, "-mcpu=");
1766 snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
1767 int res = be_parse_arg(arch_opt);
1769 argument_errors = true;
1770 } else if (strstart(opt, "fpmath=")) {
1771 GET_ARG_AFTER(opt, "-mfpmath=");
1772 if (streq(opt, "387"))
1774 else if (streq(opt, "sse"))
1777 fprintf(stderr, "error: option -mfpmath supports only 387 or sse\n");
1778 argument_errors = true;
1780 if (!argument_errors) {
1781 snprintf(arch_opt, sizeof(arch_opt), "%s-fpunit=%s", cpu_arch, opt);
1782 int res = be_parse_arg(arch_opt);
1784 argument_errors = true;
1786 } else if (strstart(opt, "preferred-stack-boundary=")) {
1787 GET_ARG_AFTER(opt, "-mpreferred-stack-boundary=");
1788 snprintf(arch_opt, sizeof(arch_opt), "%s-stackalign=%s", cpu_arch, opt);
1789 int res = be_parse_arg(arch_opt);
1791 argument_errors = true;
1792 } else if (streq(opt, "rtd")) {
1793 default_calling_convention = CC_STDCALL;
1794 } else if (strstart(opt, "regparm=")) {
1795 fprintf(stderr, "error: regparm convention not supported yet\n");
1796 argument_errors = true;
1797 } else if (streq(opt, "soft-float")) {
1798 add_flag(&ldflags_obst, "-msoft-float");
1799 snprintf(arch_opt, sizeof(arch_opt), "%s-fpunit=softfloat", cpu_arch);
1800 int res = be_parse_arg(arch_opt);
1802 argument_errors = true;
1803 } else if (streq(opt, "sse2")) {
1804 /* ignore for now, our x86 backend always uses sse when
1805 * sse is requested */
1807 long int value = strtol(opt, NULL, 10);
1809 fprintf(stderr, "error: wrong option '-m %s'\n", opt);
1810 argument_errors = true;
1811 } else if (value != 16 && value != 32 && value != 64) {
1812 fprintf(stderr, "error: option -m supports only 16, 32 or 64\n");
1813 argument_errors = true;
1815 unsigned machine_size = (unsigned)value;
1816 /* TODO: choose/change backend based on this */
1817 add_flag(&cppflags_obst, "-m%u", machine_size);
1818 add_flag(&asflags_obst, "-m%u", machine_size);
1819 add_flag(&ldflags_obst, "-m%u", machine_size);
1822 } else if (streq(option, "pg")) {
1823 set_be_option("gprof");
1824 add_flag(&ldflags_obst, "-pg");
1825 } else if (streq(option, "ansi")) {
1826 standard = STANDARD_ANSI;
1827 } else if (streq(option, "pedantic")) {
1828 fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg);
1829 } else if (strstart(option, "std=")) {
1830 const char *const o = &option[4];
1832 streq(o, "c++") ? STANDARD_CXX98 :
1833 streq(o, "c++98") ? STANDARD_CXX98 :
1834 streq(o, "c89") ? STANDARD_C89 :
1835 streq(o, "c90") ? STANDARD_C89 :
1836 streq(o, "c99") ? STANDARD_C99 :
1837 streq(o, "c9x") ? STANDARD_C99 : // deprecated
1838 streq(o, "gnu++98") ? STANDARD_GNUXX98 :
1839 streq(o, "gnu89") ? STANDARD_GNU89 :
1840 streq(o, "gnu99") ? STANDARD_GNU99 :
1841 streq(o, "gnu9x") ? STANDARD_GNU99 : // deprecated
1842 streq(o, "iso9899:1990") ? STANDARD_C89 :
1843 streq(o, "iso9899:199409") ? STANDARD_C89AMD1 :
1844 streq(o, "iso9899:1999") ? STANDARD_C99 :
1845 streq(o, "iso9899:199x") ? STANDARD_C99 : // deprecated
1846 (fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg), standard);
1847 } else if (streq(option, "version")) {
1848 print_cparser_version();
1849 return EXIT_SUCCESS;
1850 } else if (streq(option, "dumpversion")) {
1851 /* gcc compatibility option */
1852 print_cparser_version_short();
1853 return EXIT_SUCCESS;
1854 } else if (strstart(option, "print-file-name=")) {
1855 GET_ARG_AFTER(print_file_name_file, "-print-file-name=");
1856 } else if (option[0] == '-') {
1857 /* double dash option */
1859 if (streq(option, "gcc")) {
1860 features_on |= _GNUC;
1861 features_off &= ~_GNUC;
1862 } else if (streq(option, "no-gcc")) {
1863 features_on &= ~_GNUC;
1864 features_off |= _GNUC;
1865 } else if (streq(option, "ms")) {
1867 features_off &= ~_MS;
1868 } else if (streq(option, "no-ms")) {
1869 features_on &= ~_MS;
1870 features_off |= _MS;
1871 } else if (streq(option, "strict")) {
1873 } else if (streq(option, "benchmark")) {
1874 mode = BenchmarkParser;
1875 } else if (streq(option, "print-ast")) {
1877 } else if (streq(option, "print-implicit-cast")) {
1878 print_implicit_casts = true;
1879 } else if (streq(option, "print-parenthesis")) {
1880 print_parenthesis = true;
1881 } else if (streq(option, "print-fluffy")) {
1883 } else if (streq(option, "print-jna")) {
1885 } else if (streq(option, "jna-limit")) {
1888 fprintf(stderr, "error: "
1889 "expected argument after '--jna-limit'\n");
1890 argument_errors = true;
1893 jna_limit_output(argv[i]);
1894 } else if (streq(option, "jna-libname")) {
1897 fprintf(stderr, "error: "
1898 "expected argument after '--jna-libname'\n");
1899 argument_errors = true;
1902 jna_set_libname(argv[i]);
1903 } else if (streq(option, "external-pp")) {
1904 if (i+1 < argc && argv[i+1][0] != '-') {
1906 external_preprocessor = argv[i+1];
1908 external_preprocessor = PREPROCESSOR;
1910 } else if (streq(option, "no-external-pp")) {
1911 external_preprocessor = NULL;
1912 } else if (streq(option, "time")) {
1914 } else if (streq(option, "version")) {
1915 print_cparser_version();
1916 return EXIT_SUCCESS;
1917 } else if (streq(option, "help")) {
1919 } else if (streq(option, "help-parser")) {
1920 help |= HELP_PARSER;
1921 } else if (streq(option, "help-warnings")) {
1922 help |= HELP_WARNINGS;
1923 } else if (streq(option, "help-codegen")) {
1924 help |= HELP_CODEGEN;
1925 } else if (streq(option, "help-linker")) {
1926 help |= HELP_LINKER;
1927 } else if (streq(option, "help-optimization")) {
1928 help |= HELP_OPTIMIZATION;
1929 } else if (streq(option, "help-language-tools")) {
1930 help |= HELP_LANGUAGETOOLS;
1931 } else if (streq(option, "help-debug")) {
1933 } else if (streq(option, "help-firm")) {
1935 } else if (streq(option, "help-all")) {
1937 } else if (streq(option, "dump-function")) {
1940 fprintf(stderr, "error: "
1941 "expected argument after '--dump-function'\n");
1942 argument_errors = true;
1945 dumpfunction = argv[i];
1947 } else if (streq(option, "export-ir")) {
1948 mode = CompileExportIR;
1949 } else if (streq(option, "unroll-loops")) {
1950 /* ignore (gcc compatibility) */
1952 fprintf(stderr, "error: unknown argument '%s'\n", arg);
1953 argument_errors = true;
1956 fprintf(stderr, "error: unknown argument '%s'\n", arg);
1957 argument_errors = true;
1960 compilation_unit_type_t type = forced_unittype;
1961 if (type == COMPILATION_UNIT_AUTODETECT) {
1962 if (streq(arg, "-")) {
1963 /* - implicitly means C source file */
1964 type = COMPILATION_UNIT_C;
1966 const char *suffix = strrchr(arg, '.');
1967 /* Ensure there is at least one char before the suffix */
1968 if (suffix != NULL && suffix != arg) {
1971 streq(suffix, "S") ? COMPILATION_UNIT_ASSEMBLER :
1972 streq(suffix, "a") ? COMPILATION_UNIT_OBJECT :
1973 streq(suffix, "c") ? COMPILATION_UNIT_C :
1974 streq(suffix, "i") ? COMPILATION_UNIT_PREPROCESSED_C :
1975 streq(suffix, "C") ? COMPILATION_UNIT_CXX :
1976 streq(suffix, "cc") ? COMPILATION_UNIT_CXX :
1977 streq(suffix, "cp") ? COMPILATION_UNIT_CXX :
1978 streq(suffix, "cpp") ? COMPILATION_UNIT_CXX :
1979 streq(suffix, "CPP") ? COMPILATION_UNIT_CXX :
1980 streq(suffix, "cxx") ? COMPILATION_UNIT_CXX :
1981 streq(suffix, "c++") ? COMPILATION_UNIT_CXX :
1982 streq(suffix, "ii") ? COMPILATION_UNIT_PREPROCESSED_CXX :
1983 streq(suffix, "h") ? COMPILATION_UNIT_C :
1984 streq(suffix, "ir") ? COMPILATION_UNIT_IR :
1985 streq(suffix, "o") ? COMPILATION_UNIT_OBJECT :
1986 streq(suffix, "s") ? COMPILATION_UNIT_PREPROCESSED_ASSEMBLER :
1987 streq(suffix, "so") ? COMPILATION_UNIT_OBJECT :
1988 COMPILATION_UNIT_OBJECT; /* gcc behavior: unknown file extension means object file */
1993 compilation_unit_t *entry = OALLOCZ(&file_obst, compilation_unit_t);
1997 if (last_unit != NULL) {
1998 last_unit->next = entry;
2006 if (help != HELP_NONE) {
2007 print_help(argv[0], help);
2008 return !argument_errors;
2011 if (print_file_name_file != NULL) {
2012 print_file_name(print_file_name_file);
2013 return EXIT_SUCCESS;
2015 if (units == NULL) {
2016 fprintf(stderr, "error: no input files specified\n");
2017 argument_errors = true;
2020 if (argument_errors) {
2022 return EXIT_FAILURE;
2025 /* apply some effects from switches */
2026 c_mode |= features_on;
2027 c_mode &= ~features_off;
2028 if (profile_generate) {
2029 add_flag(&ldflags_obst, "-lfirmprof");
2030 set_be_option("profilegenerate");
2033 set_be_option("profileuse");
2036 init_symbol_table();
2037 init_types_and_adjust();
2040 if (c_mode & _CXX) {
2041 init_wchar_types(ATOMIC_TYPE_WCHAR_T);
2043 init_wchar_types(wchar_atomic_kind);
2045 init_preprocessor();
2054 if (construct_dep_target) {
2055 if (outname != 0 && strlen(outname) >= 2) {
2056 get_output_name(dep_target, sizeof(dep_target), outname, ".d");
2058 get_output_name(dep_target, sizeof(dep_target), units->name, ".d");
2061 dep_target[0] = '\0';
2064 char outnamebuf[4096];
2065 if (outname == NULL) {
2066 const char *filename = units->name;
2069 case BenchmarkParser:
2073 case PreprocessOnly:
2078 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".s");
2079 outname = outnamebuf;
2081 case CompileAssemble:
2082 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".o");
2083 outname = outnamebuf;
2086 get_output_name(outnamebuf, sizeof(outnamebuf), dumpfunction,
2088 outname = outnamebuf;
2090 case CompileExportIR:
2091 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".ir");
2092 outname = outnamebuf;
2094 case CompileAssembleLink:
2095 if (firm_is_windows_os(target_machine)) {
2104 assert(outname != NULL);
2107 if (streq(outname, "-")) {
2110 out = fopen(outname, "w");
2112 fprintf(stderr, "Could not open '%s' for writing: %s\n", outname,
2114 return EXIT_FAILURE;
2118 int result = compilation_loop(mode, units, standard, out);
2119 if (result != EXIT_SUCCESS) {
2125 /* link program file */
2126 if (mode == CompileAssembleLink) {
2127 int result = link_program(units);
2128 if (result != EXIT_SUCCESS) {
2138 obstack_free(&cppflags_obst, NULL);
2139 obstack_free(&ldflags_obst, NULL);
2140 obstack_free(&asflags_obst, NULL);
2141 obstack_free(&file_obst, NULL);
2148 exit_preprocessor();
2152 exit_symbol_table();
2153 return EXIT_SUCCESS;