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>
66 #include "type_hash.h"
70 #include "diagnostic.h"
71 #include "lang_features.h"
72 #include "driver/firm_opt.h"
73 #include "driver/firm_cmdline.h"
74 #include "driver/firm_timing.h"
75 #include "driver/firm_machine.h"
76 #include "adt/error.h"
77 #include "adt/strutil.h"
78 #include "wrappergen/write_fluffy.h"
79 #include "wrappergen/write_jna.h"
87 #define PREPROCESSOR "gcc -E -U__STRICT_ANSI__"
89 #define PREPROCESSOR "cpp -U__STRICT_ANSI__"
98 #define ASSEMBLER "gcc -c -xassembler"
101 unsigned int c_mode = _C89 | _ANSI | _C99 | _GNUC;
102 unsigned int machine_size = 32;
103 bool byte_order_big_endian = false;
104 bool char_is_signed = true;
105 bool strict_mode = false;
106 bool use_builtins = false;
107 atomic_type_kind_t wchar_atomic_kind = ATOMIC_TYPE_INT;
108 unsigned force_long_double_size = 0;
109 bool enable_main_collect2_hack = false;
110 bool freestanding = false;
112 /* to switch on printing of implicit casts */
113 extern bool print_implicit_casts;
115 /* to switch on printing of parenthesis to indicate operator precedence */
116 extern bool print_parenthesis;
118 static machine_triple_t *target_machine;
119 static const char *target_triple;
121 static struct obstack cppflags_obst;
122 static struct obstack ldflags_obst;
123 static struct obstack asflags_obst;
124 static char dep_target[1024];
125 static const char *outname;
127 typedef enum lang_standard_t {
128 STANDARD_DEFAULT, /* gnu99 (for C, GCC does gnu89) or gnu++98 (for C++) */
129 STANDARD_ANSI, /* c89 (for C) or c++98 (for C++) */
130 STANDARD_C89, /* ISO C90 (sic) */
131 STANDARD_C90, /* ISO C90 as modified in amendment 1 */
132 STANDARD_C99, /* ISO C99 */
133 STANDARD_GNU89, /* ISO C90 plus GNU extensions (including some C99) */
134 STANDARD_GNU99, /* ISO C99 plus GNU extensions */
135 STANDARD_CXX98, /* ISO C++ 1998 plus amendments */
136 STANDARD_GNUXX98 /* ISO C++ 1998 plus amendments and GNU extensions */
139 static lang_standard_t standard;
141 typedef struct file_list_entry_t file_list_entry_t;
143 typedef enum filetype_t {
146 FILETYPE_PREPROCESSED_C,
148 FILETYPE_PREPROCESSED_CXX,
150 FILETYPE_PREPROCESSED_ASSEMBLER,
156 struct file_list_entry_t {
157 const char *name; /**< filename or NULL for stdin */
159 file_list_entry_t *next;
162 static file_list_entry_t *temp_files;
164 static void initialize_firm(void)
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 #include "gen_builtins.h"
194 static translation_unit_t *do_parsing(FILE *const in, const char *const input_name)
199 lexer_open_buffer(builtins, sizeof(builtins)-1, "<builtin>");
203 lexer_open_stream(in, input_name);
206 translation_unit_t *unit = finish_parsing();
210 static void lextest(FILE *in, const char *fname)
212 lexer_open_stream(in, fname);
215 lexer_next_preprocessing_token();
216 print_token(stdout, &lexer_token);
218 } while (lexer_token.type != T_EOF);
221 static void add_flag(struct obstack *obst, const char *format, ...)
226 va_start(ap, format);
230 vsnprintf(buf, sizeof(buf), format, ap);
233 obstack_1grow(obst, ' ');
235 obstack_1grow(obst, '"');
236 obstack_grow(obst, buf, len);
237 obstack_1grow(obst, '"');
239 /* escape stuff... */
240 for (char *c = buf; *c != '\0'; ++c) {
258 obstack_1grow(obst, '\\');
261 obstack_1grow(obst, *c);
268 static const char *type_to_string(type_t *type)
270 assert(type->kind == TYPE_ATOMIC);
271 return get_atomic_kind_name(type->atomic.akind);
274 static FILE *preprocess(const char *fname, filetype_t filetype)
276 static const char *common_flags = NULL;
278 if (common_flags == NULL) {
279 obstack_1grow(&cppflags_obst, '\0');
280 const char *flags = obstack_finish(&cppflags_obst);
282 /* setup default defines */
283 add_flag(&cppflags_obst, "-U__WCHAR_TYPE__");
284 add_flag(&cppflags_obst, "-D__WCHAR_TYPE__=%s", type_to_string(type_wchar_t));
285 add_flag(&cppflags_obst, "-U__SIZE_TYPE__");
286 add_flag(&cppflags_obst, "-D__SIZE_TYPE__=%s", type_to_string(type_size_t));
288 add_flag(&cppflags_obst, "-U__VERSION__");
289 add_flag(&cppflags_obst, "-D__VERSION__=\"%s\"", cparser_REVISION);
291 if (flags[0] != '\0') {
292 size_t len = strlen(flags);
293 obstack_1grow(&cppflags_obst, ' ');
294 obstack_grow(&cppflags_obst, flags, len);
296 obstack_1grow(&cppflags_obst, '\0');
297 common_flags = obstack_finish(&cppflags_obst);
300 assert(obstack_object_size(&cppflags_obst) == 0);
302 const char *preprocessor = getenv("CPARSER_PP");
303 if (preprocessor != NULL) {
304 obstack_printf(&cppflags_obst, "%s ", preprocessor);
306 if (target_triple != NULL)
307 obstack_printf(&cppflags_obst, "%s-", target_triple);
308 obstack_printf(&cppflags_obst, PREPROCESSOR);
313 add_flag(&cppflags_obst, "-std=c99");
316 add_flag(&cppflags_obst, "-std=c++98");
318 case FILETYPE_ASSEMBLER:
319 add_flag(&cppflags_obst, "-x");
320 add_flag(&cppflags_obst, "assembler-with-cpp");
325 obstack_printf(&cppflags_obst, "%s", common_flags);
327 /* handle dependency generation */
328 if (dep_target[0] != '\0') {
329 add_flag(&cppflags_obst, "-MF");
330 add_flag(&cppflags_obst, dep_target);
331 if (outname != NULL) {
332 add_flag(&cppflags_obst, "-MQ");
333 add_flag(&cppflags_obst, outname);
336 add_flag(&cppflags_obst, fname);
337 obstack_1grow(&cppflags_obst, '\0');
339 char *commandline = obstack_finish(&cppflags_obst);
343 FILE *f = popen(commandline, "r");
345 fprintf(stderr, "invoking preprocessor failed\n");
348 /* we don't really need that anymore */
349 obstack_free(&cppflags_obst, commandline);
354 static void assemble(const char *out, const char *in)
356 obstack_1grow(&asflags_obst, '\0');
357 const char *flags = obstack_finish(&asflags_obst);
359 const char *assembler = getenv("CPARSER_AS");
360 if (assembler != NULL) {
361 obstack_printf(&asflags_obst, "%s", assembler);
363 if (target_triple != NULL)
364 obstack_printf(&asflags_obst, "%s-", target_triple);
365 obstack_printf(&asflags_obst, "%s", ASSEMBLER);
367 if (flags[0] != '\0')
368 obstack_printf(&asflags_obst, " %s", flags);
370 obstack_printf(&asflags_obst, " %s -o %s", in, out);
371 obstack_1grow(&asflags_obst, '\0');
373 char *commandline = obstack_finish(&asflags_obst);
377 int err = system(commandline);
378 if (err != EXIT_SUCCESS) {
379 fprintf(stderr, "assembler reported an error\n");
382 obstack_free(&asflags_obst, commandline);
385 static void print_file_name(const char *file)
387 add_flag(&ldflags_obst, "-print-file-name=%s", file);
389 obstack_1grow(&ldflags_obst, '\0');
390 const char *flags = obstack_finish(&ldflags_obst);
392 /* construct commandline */
393 const char *linker = getenv("CPARSER_LINK");
394 if (linker != NULL) {
395 obstack_printf(&ldflags_obst, "%s ", linker);
397 if (target_triple != NULL)
398 obstack_printf(&ldflags_obst, "%s-", target_triple);
399 obstack_printf(&ldflags_obst, "%s ", LINKER);
401 obstack_printf(&ldflags_obst, "%s ", linker);
402 obstack_printf(&ldflags_obst, "%s", flags);
403 obstack_1grow(&ldflags_obst, '\0');
405 char *commandline = obstack_finish(&ldflags_obst);
409 int err = system(commandline);
410 if (err != EXIT_SUCCESS) {
411 fprintf(stderr, "linker reported an error\n");
414 obstack_free(&ldflags_obst, commandline);
417 static const char *try_dir(const char *dir)
421 if (access(dir, R_OK | W_OK | X_OK) == 0)
426 static const char *get_tempdir(void)
428 static const char *tmpdir = NULL;
434 tmpdir = try_dir(getenv("TMPDIR"));
436 tmpdir = try_dir(getenv("TMP"));
438 tmpdir = try_dir(getenv("TEMP"));
442 tmpdir = try_dir(P_tmpdir);
446 tmpdir = try_dir("/var/tmp");
448 tmpdir = try_dir("/usr/tmp");
450 tmpdir = try_dir("/tmp");
459 /* cheap and nasty mkstemp replacement */
460 static int mkstemp(char *templ)
463 return open(templ, O_RDWR|O_CREAT|O_EXCL|O_BINARY, 0600);
468 * an own version of tmpnam, which: writes in a buffer, emits no warnings
469 * during linking (like glibc/gnu ld do for tmpnam)...
471 static FILE *make_temp_file(char *buffer, size_t buflen, const char *prefix)
473 const char *tempdir = get_tempdir();
475 snprintf(buffer, buflen, "%s/%sXXXXXX", tempdir, prefix);
477 int fd = mkstemp(buffer);
479 fprintf(stderr, "couldn't create temporary file: %s\n",
483 FILE *out = fdopen(fd, "w");
485 fprintf(stderr, "couldn't create temporary file FILE*\n");
489 file_list_entry_t *entry = xmalloc(sizeof(*entry));
490 memset(entry, 0, sizeof(*entry));
492 size_t name_len = strlen(buffer) + 1;
493 char *name = malloc(name_len);
494 memcpy(name, buffer, name_len);
497 entry->next = temp_files;
503 static void free_temp_files(void)
505 file_list_entry_t *entry = temp_files;
506 file_list_entry_t *next;
507 for ( ; entry != NULL; entry = next) {
511 free((char*) entry->name);
517 typedef enum compile_mode_t {
532 static void usage(const char *argv0)
534 fprintf(stderr, "Usage %s [options] input [-o output]\n", argv0);
537 static void print_cparser_version(void)
539 printf("cparser (%s) using libFirm (%u.%u",
540 cparser_REVISION, ir_get_version_major(),
541 ir_get_version_minor());
543 const char *revision = ir_get_version_revision();
544 if (revision[0] != 0) {
546 fputs(revision, stdout);
549 const char *build = ir_get_version_build();
552 fputs(build, stdout);
555 puts("This is free software; see the source for copying conditions. There is NO\n"
556 "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n");
559 static void print_help(const char *argv0)
563 puts("\t-fhelp Display help about firm optimisation options");
564 puts("\t-bhelp Display help about firm backend options");
565 puts("A big number of gcc flags is also supported");
568 static void set_be_option(const char *arg)
570 int res = be_parse_arg(arg);
575 static void copy_file(FILE *dest, FILE *input)
579 while (!feof(input) && !ferror(dest)) {
580 size_t read = fread(buf, 1, sizeof(buf), input);
581 if (fwrite(buf, 1, read, dest) != read) {
582 perror("couldn't write output");
587 static FILE *open_file(const char *filename)
589 if (streq(filename, "-")) {
593 FILE *in = fopen(filename, "r");
595 fprintf(stderr, "Couldn't open '%s': %s\n", filename,
603 static filetype_t get_filetype_from_string(const char *string)
605 if (streq(string, "c") || streq(string, "c-header"))
607 if (streq(string, "c++") || streq(string, "c++-header"))
609 if (streq(string, "assembler"))
610 return FILETYPE_PREPROCESSED_ASSEMBLER;
611 if (streq(string, "assembler-with-cpp"))
612 return FILETYPE_ASSEMBLER;
613 if (streq(string, "none"))
614 return FILETYPE_AUTODETECT;
616 return FILETYPE_UNKNOWN;
619 static bool init_os_support(void)
621 const char *os = target_machine->operating_system;
622 wchar_atomic_kind = ATOMIC_TYPE_INT;
623 force_long_double_size = 0;
624 enable_main_collect2_hack = false;
626 if (strstr(os, "linux") != NULL || strstr(os, "bsd") != NULL
627 || streq(os, "solaris")) {
628 set_create_ld_ident(create_name_linux_elf);
629 } else if (streq(os, "darwin")) {
630 force_long_double_size = 16;
631 set_create_ld_ident(create_name_macho);
632 } else if (strstr(os, "mingw") != NULL || streq(os, "win32")) {
633 wchar_atomic_kind = ATOMIC_TYPE_USHORT;
634 enable_main_collect2_hack = true;
635 set_create_ld_ident(create_name_win32);
643 static bool parse_target_triple(const char *arg)
645 machine_triple_t *triple = firm_parse_machine_triple(arg);
646 if (triple == NULL) {
647 fprintf(stderr, "Target-triple is not in the form 'cpu_type-manufacturer-operating_system'\n");
653 int main(int argc, char **argv)
657 const char *dumpfunction = NULL;
658 const char *print_file_name_file = NULL;
659 compile_mode_t mode = CompileAssembleLink;
661 int result = EXIT_SUCCESS;
662 char cpu_arch[16] = "ia32";
663 file_list_entry_t *files = NULL;
664 file_list_entry_t *last_file = NULL;
665 bool construct_dep_target = false;
666 bool do_timing = false;
667 struct obstack file_obst;
669 atexit(free_temp_files);
671 /* hack for now... */
672 if (strstr(argv[0], "pptest") != NULL) {
673 extern int pptest_main(int argc, char **argv);
674 return pptest_main(argc, argv);
677 obstack_init(&cppflags_obst);
678 obstack_init(&ldflags_obst);
679 obstack_init(&asflags_obst);
680 obstack_init(&file_obst);
682 #define GET_ARG_AFTER(def, args) \
683 def = &arg[sizeof(args)-1]; \
684 if (def[0] == '\0') { \
687 fprintf(stderr, "error: expected argument after '" args "'\n"); \
688 argument_errors = true; \
692 if (def[0] == '-' && def[1] != '\0') { \
693 fprintf(stderr, "error: expected argument after '" args "'\n"); \
694 argument_errors = true; \
699 #define SINGLE_OPTION(ch) (option[0] == (ch) && option[1] == '\0')
701 /* early options parsing (find out optimisation level and OS) */
702 for (int i = 1; i < argc; ++i) {
703 const char *arg = argv[i];
707 const char *option = &arg[1];
708 if (option[0] == 'O') {
709 sscanf(&option[1], "%d", &opt_level);
713 const char *target = getenv("TARGET");
715 parse_target_triple(target);
716 if (target_machine == NULL) {
717 target_machine = firm_get_host_machine();
719 choose_optimization_pack(opt_level);
720 setup_firm_for_machine(target_machine);
723 /* parse rest of options */
724 standard = STANDARD_DEFAULT;
725 unsigned features_on = 0;
726 unsigned features_off = 0;
727 filetype_t forced_filetype = FILETYPE_AUTODETECT;
728 bool help_displayed = false;
729 bool argument_errors = false;
730 for (int i = 1; i < argc; ++i) {
731 const char *arg = argv[i];
732 if (arg[0] == '-' && arg[1] != '\0') {
734 const char *option = &arg[1];
735 if (option[0] == 'o') {
736 GET_ARG_AFTER(outname, "-o");
737 } else if (option[0] == 'g') {
738 set_be_option("debuginfo=stabs");
739 set_be_option("omitfp=no");
740 set_be_option("ia32-nooptcc=yes");
741 } else if (SINGLE_OPTION('c')) {
742 mode = CompileAssemble;
743 } else if (SINGLE_OPTION('E')) {
744 mode = PreprocessOnly;
745 } else if (SINGLE_OPTION('S')) {
747 } else if (option[0] == 'O') {
749 } else if (option[0] == 'I') {
751 GET_ARG_AFTER(opt, "-I");
752 add_flag(&cppflags_obst, "-I%s", opt);
753 } else if (option[0] == 'D') {
755 GET_ARG_AFTER(opt, "-D");
756 add_flag(&cppflags_obst, "-D%s", opt);
757 } else if (option[0] == 'U') {
759 GET_ARG_AFTER(opt, "-U");
760 add_flag(&cppflags_obst, "-U%s", opt);
761 } else if (option[0] == 'l') {
763 GET_ARG_AFTER(opt, "-l");
764 add_flag(&ldflags_obst, "-l%s", opt);
765 } else if (option[0] == 'L') {
767 GET_ARG_AFTER(opt, "-L");
768 add_flag(&ldflags_obst, "-L%s", opt);
769 } else if (SINGLE_OPTION('v')) {
771 } else if (SINGLE_OPTION('w')) {
772 memset(&warning, 0, sizeof(warning));
773 } else if (option[0] == 'x') {
775 GET_ARG_AFTER(opt, "-x");
776 forced_filetype = get_filetype_from_string(opt);
777 if (forced_filetype == FILETYPE_UNKNOWN) {
778 fprintf(stderr, "Unknown language '%s'\n", opt);
779 argument_errors = true;
781 } else if (streq(option, "M")) {
782 mode = PreprocessOnly;
783 add_flag(&cppflags_obst, "-M");
784 } else if (streq(option, "MMD") ||
785 streq(option, "MD")) {
786 construct_dep_target = true;
787 add_flag(&cppflags_obst, "-%s", option);
788 } else if (streq(option, "MM") ||
789 streq(option, "MP")) {
790 add_flag(&cppflags_obst, "-%s", option);
791 } else if (streq(option, "MT") ||
792 streq(option, "MQ") ||
793 streq(option, "MF")) {
795 GET_ARG_AFTER(opt, "-MT");
796 add_flag(&cppflags_obst, "-%s", option);
797 add_flag(&cppflags_obst, "%s", opt);
798 } else if (streq(option, "include")) {
800 GET_ARG_AFTER(opt, "-include");
801 add_flag(&cppflags_obst, "-include");
802 add_flag(&cppflags_obst, "%s", opt);
803 } else if (streq(option, "isystem")) {
805 GET_ARG_AFTER(opt, "-isystem");
806 add_flag(&cppflags_obst, "-isystem");
807 add_flag(&cppflags_obst, "%s", opt);
808 #if defined(linux) || defined(__linux) || defined(__linux__) || defined(__CYGWIN__)
809 } else if (streq(option, "pthread")) {
810 /* set flags for the preprocessor */
811 add_flag(&cppflags_obst, "-D_REENTRANT");
812 /* set flags for the linker */
813 add_flag(&ldflags_obst, "-lpthread");
815 } else if (streq(option, "nostdinc")
816 || streq(option, "trigraphs")) {
817 /* pass these through to the preprocessor */
818 add_flag(&cppflags_obst, "%s", arg);
819 } else if (streq(option, "pipe")) {
820 /* here for gcc compatibility */
821 } else if (streq(option, "static")) {
822 add_flag(&ldflags_obst, "-static");
823 } else if (streq(option, "shared")) {
824 add_flag(&ldflags_obst, "-shared");
825 } else if (option[0] == 'f') {
826 char const *orig_opt;
827 GET_ARG_AFTER(orig_opt, "-f");
829 if (strstart(orig_opt, "input-charset=")) {
830 char const* const encoding = strchr(orig_opt, '=') + 1;
831 select_input_encoding(encoding);
832 } else if (streq(orig_opt, "verbose-asm")) {
833 /* ignore: we always print verbose assembler */
835 char const *opt = orig_opt;
836 bool truth_value = true;
837 if (opt[0] == 'n' && opt[1] == 'o' && opt[2] == '-') {
842 if (streq(opt, "builtins")) {
843 use_builtins = truth_value;
844 } else if (streq(opt, "dollars-in-identifiers")) {
845 allow_dollar_in_symbol = truth_value;
846 } else if (streq(opt, "omit-frame-pointer")) {
847 set_be_option(truth_value ? "omitfp" : "omitfp=no");
848 } else if (streq(opt, "short-wchar")) {
849 wchar_atomic_kind = truth_value ? ATOMIC_TYPE_USHORT
851 } else if (streq(opt, "signed-char")) {
852 char_is_signed = truth_value;
853 } else if (streq(opt, "strength-reduce")) {
854 firm_option(truth_value ? "strength-red" : "no-strength-red");
855 } else if (streq(opt, "syntax-only")) {
856 mode = truth_value ? ParseOnly : CompileAssembleLink;
857 } else if (streq(opt, "unsigned-char")) {
858 char_is_signed = !truth_value;
859 } else if (streq(opt, "freestanding")) {
861 } else if (streq(opt, "hosted")) {
862 freestanding = false;
863 } else if (truth_value == false &&
864 streq(opt, "asynchronous-unwind-tables")) {
865 /* nothing todo, a gcc feature which we don't support
866 * anyway was deactivated */
867 } else if (strstart(orig_opt, "align-loops=") ||
868 strstart(orig_opt, "align-jumps=") ||
869 strstart(orig_opt, "align-functions=")) {
870 fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
871 } else if (strstart(orig_opt, "message-length=")) {
872 /* ignore: would only affect error message format */
873 } else if (streq(opt, "fast-math") ||
874 streq(opt, "jump-tables") ||
875 streq(opt, "expensive-optimizations") ||
876 streq(opt, "common") ||
877 streq(opt, "optimize-sibling-calls") ||
878 streq(opt, "align-loops") ||
879 streq(opt, "align-jumps") ||
880 streq(opt, "align-functions") ||
882 fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
884 int res = firm_option(orig_opt);
886 fprintf(stderr, "error: unknown Firm option '-f%s'\n",
888 argument_errors = true;
890 } else if (res == -1) {
891 help_displayed = true;
895 } else if (option[0] == 'b') {
897 GET_ARG_AFTER(opt, "-b");
898 int res = be_parse_arg(opt);
900 fprintf(stderr, "error: unknown Firm backend option '-b %s'\n",
902 argument_errors = true;
903 } else if (res == -1) {
904 help_displayed = true;
905 } else if (strstart(opt, "isa=")) {
906 strncpy(cpu_arch, opt, sizeof(cpu_arch));
908 } else if (option[0] == 'W') {
909 if (option[1] == '\0') {
910 /* ignore -W, our defaults are already quite verbose */
911 } else if (strstart(option + 1, "p,")) {
912 // pass options directly to the preprocessor
914 GET_ARG_AFTER(opt, "-Wp,");
915 add_flag(&cppflags_obst, "-Wp,%s", opt);
916 } else if (strstart(option + 1, "l,")) {
917 // pass options directly to the linker
919 GET_ARG_AFTER(opt, "-Wl,");
920 add_flag(&ldflags_obst, "-Wl,%s", opt);
921 } else if (streq(option + 1, "no-trigraphs")
922 || streq(option + 1, "undef")) {
923 add_flag(&cppflags_obst, "%s", arg);
925 set_warning_opt(&option[1]);
927 } else if (option[0] == 'm') {
932 GET_ARG_AFTER(opt, "-m");
933 if (strstart(opt, "target=")) {
934 GET_ARG_AFTER(opt, "-mtarget=");
935 if (!parse_target_triple(opt)) {
936 argument_errors = true;
938 setup_firm_for_machine(target_machine);
941 } else if (strstart(opt, "triple=")) {
942 GET_ARG_AFTER(opt, "-mtriple=");
943 if (!parse_target_triple(opt)) {
944 argument_errors = true;
946 setup_firm_for_machine(target_machine);
949 } else if (strstart(opt, "arch=")) {
950 GET_ARG_AFTER(opt, "-march=");
951 snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
952 int res = be_parse_arg(arch_opt);
954 fprintf(stderr, "Unknown architecture '%s'\n", arch_opt);
955 argument_errors = true;
957 snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
958 int res = be_parse_arg(arch_opt);
960 argument_errors = true;
962 } else if (strstart(opt, "tune=")) {
963 GET_ARG_AFTER(opt, "-mtune=");
964 snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
965 int res = be_parse_arg(arch_opt);
967 argument_errors = true;
968 } else if (strstart(opt, "cpu=")) {
969 GET_ARG_AFTER(opt, "-mcpu=");
970 snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
971 int res = be_parse_arg(arch_opt);
973 argument_errors = true;
974 } else if (strstart(opt, "fpmath=")) {
975 GET_ARG_AFTER(opt, "-mfpmath=");
976 if (streq(opt, "387"))
978 else if (streq(opt, "sse"))
981 fprintf(stderr, "error: option -mfpumath supports only 387 or sse\n");
982 argument_errors = true;
984 if (!argument_errors) {
985 snprintf(arch_opt, sizeof(arch_opt), "%s-fpunit=%s", cpu_arch, opt);
986 int res = be_parse_arg(arch_opt);
988 argument_errors = true;
990 } else if (strstart(opt, "preferred-stack-boundary=")) {
991 GET_ARG_AFTER(opt, "-mpreferred-stack-boundary=");
992 snprintf(arch_opt, sizeof(arch_opt), "%s-stackalign=%s", cpu_arch, opt);
993 int res = be_parse_arg(arch_opt);
995 argument_errors = true;
996 } else if (streq(opt, "omit-leaf-frame-pointer")) {
997 set_be_option("omitleaffp=1");
998 } else if (streq(opt, "no-omit-leaf-frame-pointer")) {
999 set_be_option("omitleaffp=0");
1000 } else if (streq(opt, "rtd")) {
1001 default_calling_convention = CC_STDCALL;
1002 } else if (strstart(opt, "regparm=")) {
1003 fprintf(stderr, "error: regparm convention not supported yet\n");
1004 argument_errors = true;
1005 } else if (streq(opt, "soft-float")) {
1006 fprintf(stderr, "error: software floatingpoint not supported yet\n");
1007 argument_errors = true;
1009 long int value = strtol(opt, NULL, 10);
1011 fprintf(stderr, "error: wrong option '-m %s'\n", opt);
1012 argument_errors = true;
1013 } else if (value != 16 && value != 32 && value != 64) {
1014 fprintf(stderr, "error: option -m supports only 16, 32 or 64\n");
1015 argument_errors = true;
1017 machine_size = (unsigned int)value;
1018 add_flag(&asflags_obst, "-m%u", machine_size);
1019 add_flag(&ldflags_obst, "-m%u", machine_size);
1022 } else if (streq(option, "pg")) {
1023 set_be_option("gprof");
1024 add_flag(&ldflags_obst, "-pg");
1025 } else if (streq(option, "pedantic") ||
1026 streq(option, "ansi")) {
1027 fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg);
1028 } else if (streq(option, "shared")) {
1029 add_flag(&ldflags_obst, "-shared");
1030 } else if (strstart(option, "std=")) {
1031 const char *const o = &option[4];
1033 streq(o, "c++") ? STANDARD_CXX98 :
1034 streq(o, "c++98") ? STANDARD_CXX98 :
1035 streq(o, "c89") ? STANDARD_C89 :
1036 streq(o, "c99") ? STANDARD_C99 :
1037 streq(o, "c9x") ? STANDARD_C99 : // deprecated
1038 streq(o, "gnu++98") ? STANDARD_GNUXX98 :
1039 streq(o, "gnu89") ? STANDARD_GNU89 :
1040 streq(o, "gnu99") ? STANDARD_GNU99 :
1041 streq(o, "gnu9x") ? STANDARD_GNU99 : // deprecated
1042 streq(o, "iso9899:1990") ? STANDARD_C89 :
1043 streq(o, "iso9899:199409") ? STANDARD_C90 :
1044 streq(o, "iso9899:1999") ? STANDARD_C99 :
1045 streq(o, "iso9899:199x") ? STANDARD_C99 : // deprecated
1046 (fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg), standard);
1047 } else if (streq(option, "version")) {
1048 print_cparser_version();
1049 } else if (strstart(option, "print-file-name=")) {
1050 GET_ARG_AFTER(print_file_name_file, "-print-file-name=");
1051 } else if (option[0] == '-') {
1052 /* double dash option */
1054 if (streq(option, "gcc")) {
1055 features_on |= _GNUC;
1056 features_off &= ~_GNUC;
1057 } else if (streq(option, "no-gcc")) {
1058 features_on &= ~_GNUC;
1059 features_off |= _GNUC;
1060 } else if (streq(option, "ms")) {
1062 features_off &= ~_MS;
1063 } else if (streq(option, "no-ms")) {
1064 features_on &= ~_MS;
1065 features_off |= _MS;
1066 } else if (streq(option, "strict")) {
1068 } else if (streq(option, "lextest")) {
1070 } else if (streq(option, "benchmark")) {
1071 mode = BenchmarkParser;
1072 } else if (streq(option, "print-ast")) {
1074 } else if (streq(option, "print-implicit-cast")) {
1075 print_implicit_casts = true;
1076 } else if (streq(option, "print-parenthesis")) {
1077 print_parenthesis = true;
1078 } else if (streq(option, "print-fluffy")) {
1080 } else if (streq(option, "print-jna")) {
1082 } else if (streq(option, "jna-limit")) {
1085 fprintf(stderr, "error: "
1086 "expected argument after '--jna-limit'\n");
1087 argument_errors = true;
1090 jna_limit_output(argv[i]);
1091 } else if (streq(option, "jna-libname")) {
1094 fprintf(stderr, "error: "
1095 "expected argument after '--jna-libname'\n");
1096 argument_errors = true;
1099 jna_set_libname(argv[i]);
1100 } else if (streq(option, "time")) {
1102 } else if (streq(option, "version")) {
1103 print_cparser_version();
1104 return EXIT_SUCCESS;
1105 } else if (streq(option, "help")) {
1106 print_help(argv[0]);
1107 help_displayed = true;
1108 } else if (streq(option, "dump-function")) {
1111 fprintf(stderr, "error: "
1112 "expected argument after '--dump-function'\n");
1113 argument_errors = true;
1116 dumpfunction = argv[i];
1118 } else if (streq(option, "export-ir")) {
1119 mode = CompileExportIR;
1121 fprintf(stderr, "error: unknown argument '%s'\n", arg);
1122 argument_errors = true;
1125 fprintf(stderr, "error: unknown argument '%s'\n", arg);
1126 argument_errors = true;
1129 filetype_t type = forced_filetype;
1130 if (type == FILETYPE_AUTODETECT) {
1131 if (streq(arg, "-")) {
1132 /* - implicitly means C source file */
1135 const char *suffix = strrchr(arg, '.');
1136 /* Ensure there is at least one char before the suffix */
1137 if (suffix != NULL && suffix != arg) {
1140 streq(suffix, "S") ? FILETYPE_ASSEMBLER :
1141 streq(suffix, "a") ? FILETYPE_OBJECT :
1142 streq(suffix, "c") ? FILETYPE_C :
1143 streq(suffix, "C") ? FILETYPE_CXX :
1144 streq(suffix, "cc") ? FILETYPE_CXX :
1145 streq(suffix, "cp") ? FILETYPE_CXX :
1146 streq(suffix, "cpp") ? FILETYPE_CXX :
1147 streq(suffix, "CPP") ? FILETYPE_CXX :
1148 streq(suffix, "cxx") ? FILETYPE_CXX :
1149 streq(suffix, "c++") ? FILETYPE_CXX :
1150 streq(suffix, "ii") ? FILETYPE_CXX :
1151 streq(suffix, "h") ? FILETYPE_C :
1152 streq(suffix, "ir") ? FILETYPE_IR :
1153 streq(suffix, "o") ? FILETYPE_OBJECT :
1154 streq(suffix, "s") ? FILETYPE_PREPROCESSED_ASSEMBLER :
1155 streq(suffix, "so") ? FILETYPE_OBJECT :
1156 FILETYPE_OBJECT; /* gcc behavior: unknown file extension means object file */
1161 file_list_entry_t *entry
1162 = obstack_alloc(&file_obst, sizeof(entry[0]));
1163 memset(entry, 0, sizeof(entry[0]));
1167 if (last_file != NULL) {
1168 last_file->next = entry;
1176 if (help_displayed) {
1177 return !argument_errors;
1180 if (print_file_name_file != NULL) {
1181 print_file_name(print_file_name_file);
1182 return EXIT_SUCCESS;
1184 if (files == NULL) {
1185 fprintf(stderr, "error: no input files specified\n");
1186 argument_errors = true;
1189 if (argument_errors) {
1191 return EXIT_FAILURE;
1194 /* set the c_mode here, types depends on it */
1195 c_mode |= features_on;
1196 c_mode &= ~features_off;
1199 byte_order_big_endian = be_get_backend_param()->byte_order_big_endian;
1200 init_symbol_table();
1213 if (construct_dep_target) {
1214 if (outname != 0 && strlen(outname) >= 2) {
1215 get_output_name(dep_target, sizeof(dep_target), outname, ".d");
1217 get_output_name(dep_target, sizeof(dep_target), files->name, ".d");
1220 dep_target[0] = '\0';
1223 char outnamebuf[4096];
1224 if (outname == NULL) {
1225 const char *filename = files->name;
1228 case BenchmarkParser:
1233 case PreprocessOnly:
1238 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".s");
1239 outname = outnamebuf;
1241 case CompileAssemble:
1242 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".o");
1243 outname = outnamebuf;
1246 get_output_name(outnamebuf, sizeof(outnamebuf), dumpfunction,
1248 outname = outnamebuf;
1250 case CompileExportIR:
1251 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".ir");
1252 outname = outnamebuf;
1254 case CompileAssembleLink:
1264 assert(outname != NULL);
1267 if (streq(outname, "-")) {
1270 out = fopen(outname, "w");
1272 fprintf(stderr, "Couldn't open '%s' for writing: %s\n", outname,
1274 return EXIT_FAILURE;
1278 file_list_entry_t *file;
1279 bool already_constructed_firm = false;
1280 for (file = files; file != NULL; file = file->next) {
1281 char asm_tempfile[1024];
1282 const char *filename = file->name;
1283 filetype_t filetype = file->type;
1285 if (filetype == FILETYPE_OBJECT)
1289 if (mode == LexTest) {
1291 in = open_file(filename);
1292 lextest(in, filename);
1294 return EXIT_SUCCESS;
1297 FILE *preprocessed_in = NULL;
1298 filetype_t next_filetype = filetype;
1301 next_filetype = FILETYPE_PREPROCESSED_C;
1304 next_filetype = FILETYPE_PREPROCESSED_CXX;
1306 case FILETYPE_ASSEMBLER:
1307 next_filetype = FILETYPE_PREPROCESSED_ASSEMBLER;
1310 /* no support for input on FILE* yet */
1312 panic("internal compiler error: in for preprocessor != NULL");
1314 preprocessed_in = preprocess(filename, filetype);
1315 if (mode == PreprocessOnly) {
1316 copy_file(out, preprocessed_in);
1317 int result = pclose(preprocessed_in);
1319 /* remove output file in case of error */
1320 if (out != stdout && result != EXIT_SUCCESS) {
1326 in = preprocessed_in;
1327 filetype = next_filetype;
1335 if (mode == Compile) {
1338 asm_out = make_temp_file(asm_tempfile, sizeof(asm_tempfile), "ccs");
1342 in = open_file(filename);
1344 /* preprocess and compile */
1345 if (filetype == FILETYPE_PREPROCESSED_C) {
1346 char const* invalid_mode;
1349 case STANDARD_C89: c_mode = _C89; break;
1350 /* TODO determine difference between these two */
1351 case STANDARD_C90: c_mode = _C89; break;
1352 case STANDARD_C99: c_mode = _C89 | _C99; break;
1353 case STANDARD_GNU89: c_mode = _C89 | _GNUC; break;
1357 "warning: command line option \"-std=%s\" is not valid for C\n",
1360 case STANDARD_DEFAULT:
1361 case STANDARD_GNU99: c_mode = _C89 | _C99 | _GNUC; break;
1363 case STANDARD_CXX98: invalid_mode = "c++98"; goto default_c_warn;
1364 case STANDARD_GNUXX98: invalid_mode = "gnu98"; goto default_c_warn;
1367 } else if (filetype == FILETYPE_PREPROCESSED_CXX) {
1368 char const* invalid_mode;
1370 case STANDARD_C89: invalid_mode = "c89"; goto default_cxx_warn;
1371 case STANDARD_C90: invalid_mode = "c90"; goto default_cxx_warn;
1372 case STANDARD_C99: invalid_mode = "c99"; goto default_cxx_warn;
1373 case STANDARD_GNU89: invalid_mode = "gnu89"; goto default_cxx_warn;
1374 case STANDARD_GNU99: invalid_mode = "gnu99"; goto default_cxx_warn;
1377 case STANDARD_CXX98: c_mode = _CXX; break;
1381 "warning: command line option \"-std=%s\" is not valid for C++\n",
1383 case STANDARD_DEFAULT:
1384 case STANDARD_GNUXX98: c_mode = _CXX | _GNUC; break;
1388 c_mode |= features_on;
1389 c_mode &= ~features_off;
1391 /* do the actual parsing */
1392 ir_timer_t *t_parsing = ir_timer_new();
1393 timer_register(t_parsing, "Frontend: Parsing");
1394 timer_push(t_parsing);
1396 translation_unit_t *const unit = do_parsing(in, filename);
1397 timer_pop(t_parsing);
1399 /* prints the AST even if errors occurred */
1400 if (mode == PrintAst) {
1405 if (error_count > 0) {
1406 /* parsing failed because of errors */
1407 fprintf(stderr, "%u error(s), %u warning(s)\n", error_count,
1409 result = EXIT_FAILURE;
1411 } else if (warning_count > 0) {
1412 fprintf(stderr, "%u warning(s)\n", warning_count);
1415 if (in == preprocessed_in) {
1416 int pp_result = pclose(preprocessed_in);
1417 if (pp_result != EXIT_SUCCESS) {
1418 /* remove output file */
1421 return EXIT_FAILURE;
1425 if (mode == BenchmarkParser) {
1427 } else if (mode == PrintFluffy) {
1428 write_fluffy_decls(out, unit);
1430 } else if (mode == PrintJna) {
1431 write_jna_decls(out, unit);
1435 /* build the firm graph */
1436 ir_timer_t *t_construct = ir_timer_new();
1437 timer_register(t_construct, "Frontend: Graph construction");
1438 timer_push(t_construct);
1439 if (already_constructed_firm) {
1440 panic("compiling multiple files/translation units not possible");
1442 translation_unit_to_firm(unit);
1443 already_constructed_firm = true;
1444 timer_pop(t_construct);
1447 if (mode == ParseOnly) {
1451 if (mode == CompileDump) {
1453 ident *id = new_id_from_str(dumpfunction);
1454 ir_graph *irg = NULL;
1455 int n_irgs = get_irp_n_irgs();
1456 for (int i = 0; i < n_irgs; ++i) {
1457 ir_graph *tirg = get_irp_irg(i);
1458 ident *irg_id = get_entity_ident(get_irg_entity(tirg));
1466 fprintf(stderr, "No graph for function '%s' found\n",
1468 return EXIT_FAILURE;
1471 dump_ir_graph_file(out, irg);
1473 return EXIT_SUCCESS;
1476 if (mode == CompileExportIR) {
1479 return EXIT_SUCCESS;
1482 gen_firm_finish(asm_out, filename);
1483 if (asm_out != out) {
1486 } else if (filetype == FILETYPE_IR) {
1488 ir_import(filename);
1490 } else if (filetype == FILETYPE_PREPROCESSED_ASSEMBLER) {
1491 copy_file(asm_out, in);
1492 if (in == preprocessed_in) {
1493 int pp_result = pclose(preprocessed_in);
1494 if (pp_result != EXIT_SUCCESS) {
1495 /* remove output in error case */
1501 if (asm_out != out) {
1506 if (mode == Compile)
1509 /* if we're here then we have preprocessed assembly */
1510 filename = asm_tempfile;
1511 filetype = FILETYPE_PREPROCESSED_ASSEMBLER;
1514 if (filetype == FILETYPE_PREPROCESSED_ASSEMBLER) {
1516 const char *filename_o;
1517 if (mode == CompileAssemble) {
1519 filename_o = outname;
1521 FILE *tempf = make_temp_file(temp, sizeof(temp), "cco");
1526 assemble(filename_o, filename);
1528 size_t len = strlen(filename_o) + 1;
1529 filename = obstack_copy(&file_obst, filename_o, len);
1530 filetype = FILETYPE_OBJECT;
1533 /* ok we're done here, process next file */
1534 file->name = filename;
1535 file->type = filetype;
1538 if (result != EXIT_SUCCESS) {
1544 /* link program file */
1545 if (mode == CompileAssembleLink) {
1546 obstack_1grow(&ldflags_obst, '\0');
1547 const char *flags = obstack_finish(&ldflags_obst);
1549 /* construct commandline */
1550 const char *linker = getenv("CPARSER_LINK");
1551 if (linker != NULL) {
1552 obstack_printf(&file_obst, "%s ", linker);
1554 if (target_triple != NULL)
1555 obstack_printf(&file_obst, "%s-", target_triple);
1556 obstack_printf(&file_obst, "%s ", LINKER);
1559 for (file_list_entry_t *entry = files; entry != NULL;
1560 entry = entry->next) {
1561 if (entry->type != FILETYPE_OBJECT)
1564 add_flag(&file_obst, "%s", entry->name);
1567 add_flag(&file_obst, "-o");
1568 add_flag(&file_obst, outname);
1569 obstack_printf(&file_obst, "%s", flags);
1570 obstack_1grow(&file_obst, '\0');
1572 char *commandline = obstack_finish(&file_obst);
1577 int err = system(commandline);
1578 if (err != EXIT_SUCCESS) {
1579 fprintf(stderr, "linker reported an error\n");
1580 return EXIT_FAILURE;
1587 obstack_free(&cppflags_obst, NULL);
1588 obstack_free(&ldflags_obst, NULL);
1589 obstack_free(&asflags_obst, NULL);
1590 obstack_free(&file_obst, NULL);
1600 exit_symbol_table();
1601 return EXIT_SUCCESS;