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 "adt/error.h"
76 #include "wrappergen/write_fluffy.h"
77 #include "wrappergen/write_caml.h"
78 #include "wrappergen/write_jna.h"
86 #define PREPROCESSOR "gcc -E -m32 -U__STRICT_ANSI__"
88 #define PREPROCESSOR "cpp -m32 -U__STRICT_ANSI__"
93 #define LINKER "gcc -m32"
98 #define ASSEMBLER "gcc -m32 -c -xassembler"
100 #define ASSEMBLER "as --32"
104 unsigned int c_mode = _C89 | _ANSI | _C99 | _GNUC;
105 unsigned int machine_size = 32;
106 bool byte_order_big_endian = false;
107 bool char_is_signed = true;
108 bool strict_mode = false;
109 bool use_builtins = false;
110 bool have_const_functions = false;
111 atomic_type_kind_t wchar_atomic_kind = ATOMIC_TYPE_INT;
112 unsigned force_long_double_size = 0;
113 bool enable_main_collect2_hack = false;
114 bool freestanding = false;
116 /* to switch on printing of implicit casts */
117 extern bool print_implicit_casts;
119 /* to switch on printing of parenthesis to indicate operator precedence */
120 extern bool print_parenthesis;
122 static const char *target_triple;
124 static struct obstack cppflags_obst, ldflags_obst;
125 static char dep_target[1024];
126 static const char *outname;
128 typedef enum lang_standard_t {
129 STANDARD_DEFAULT, /* gnu99 (for C, GCC does gnu89) or gnu++98 (for C++) */
130 STANDARD_ANSI, /* c89 (for C) or c++98 (for C++) */
131 STANDARD_C89, /* ISO C90 (sic) */
132 STANDARD_C90, /* 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 static lang_standard_t standard;
142 typedef struct file_list_entry_t file_list_entry_t;
144 typedef enum filetype_t {
147 FILETYPE_PREPROCESSED_C,
149 FILETYPE_PREPROCESSED_CXX,
151 FILETYPE_PREPROCESSED_ASSEMBLER,
157 struct file_list_entry_t {
158 const char *name; /**< filename or NULL for stdin */
160 file_list_entry_t *next;
163 static file_list_entry_t *temp_files;
165 static void initialize_firm(void)
170 static void get_output_name(char *buf, size_t buflen, const char *inputname,
173 if (inputname == NULL)
176 char const *const last_slash = strrchr(inputname, '/');
177 char const *const filename =
178 last_slash != NULL ? last_slash + 1 : inputname;
179 char const *const last_dot = strrchr(filename, '.');
180 char const *const name_end =
181 last_dot != NULL ? last_dot : strchr(filename, '\0');
183 int const len = snprintf(buf, buflen, "%.*s%s",
184 (int)(name_end - filename), filename, newext);
186 if (len < 0 || buflen <= (size_t)len)
188 if (buflen <= (size_t)len)
190 panic("filename too long");
193 #include "gen_builtins.h"
195 static translation_unit_t *do_parsing(FILE *const in, const char *const input_name)
200 lexer_open_buffer(builtins, sizeof(builtins)-1, "<builtin>");
204 lexer_open_stream(in, input_name);
207 translation_unit_t *unit = finish_parsing();
211 static void lextest(FILE *in, const char *fname)
213 lexer_open_stream(in, fname);
216 lexer_next_preprocessing_token();
217 print_token(stdout, &lexer_token);
219 } while (lexer_token.type != T_EOF);
222 static void add_flag(struct obstack *obst, const char *format, ...)
227 va_start(ap, format);
231 vsnprintf(buf, sizeof(buf), format, ap);
234 obstack_1grow(obst, ' ');
236 obstack_1grow(obst, '"');
237 obstack_grow(obst, buf, len);
238 obstack_1grow(obst, '"');
240 /* escape stuff... */
241 for (char *c = buf; *c != '\0'; ++c) {
259 obstack_1grow(obst, '\\');
262 obstack_1grow(obst, *c);
269 static const char *type_to_string(type_t *type)
271 assert(type->kind == TYPE_ATOMIC);
272 return get_atomic_kind_name(type->atomic.akind);
275 static FILE *preprocess(const char *fname, filetype_t filetype)
277 static const char *common_flags = NULL;
279 if (common_flags == NULL) {
280 obstack_1grow(&cppflags_obst, '\0');
281 const char *flags = obstack_finish(&cppflags_obst);
283 /* setup default defines */
284 add_flag(&cppflags_obst, "-U__WCHAR_TYPE__");
285 add_flag(&cppflags_obst, "-D__WCHAR_TYPE__=%s", type_to_string(type_wchar_t));
286 add_flag(&cppflags_obst, "-U__SIZE_TYPE__");
287 add_flag(&cppflags_obst, "-D__SIZE_TYPE__=%s", type_to_string(type_size_t));
289 add_flag(&cppflags_obst, "-U__VERSION__");
290 add_flag(&cppflags_obst, "-D__VERSION__=\"%s\"", cparser_REVISION);
292 if (flags[0] != '\0') {
293 size_t len = strlen(flags);
294 obstack_1grow(&cppflags_obst, ' ');
295 obstack_grow(&cppflags_obst, flags, len);
297 obstack_1grow(&cppflags_obst, '\0');
298 common_flags = obstack_finish(&cppflags_obst);
301 assert(obstack_object_size(&cppflags_obst) == 0);
303 const char *preprocessor = getenv("CPARSER_PP");
304 if (preprocessor != NULL) {
305 obstack_printf(&cppflags_obst, "%s ", preprocessor);
307 if (target_triple != NULL)
308 obstack_printf(&cppflags_obst, "%s-", target_triple);
309 obstack_printf(&cppflags_obst, PREPROCESSOR);
314 add_flag(&cppflags_obst, "-std=c99");
317 add_flag(&cppflags_obst, "-std=c++98");
319 case FILETYPE_ASSEMBLER:
320 add_flag(&cppflags_obst, "-x");
321 add_flag(&cppflags_obst, "assembler-with-cpp");
326 obstack_printf(&cppflags_obst, "%s", common_flags);
328 /* handle dependency generation */
329 if (dep_target[0] != '\0') {
330 add_flag(&cppflags_obst, "-MF");
331 add_flag(&cppflags_obst, dep_target);
332 if (outname != NULL) {
333 add_flag(&cppflags_obst, "-MQ");
334 add_flag(&cppflags_obst, outname);
337 add_flag(&cppflags_obst, fname);
339 obstack_1grow(&cppflags_obst, '\0');
340 char *buf = obstack_finish(&cppflags_obst);
345 FILE *f = popen(buf, "r");
347 fprintf(stderr, "invoking preprocessor failed\n");
351 /* we don't really need that anymore */
352 obstack_free(&cppflags_obst, buf);
357 static void assemble(const char *out, const char *in)
359 struct obstack asflags_obst;
362 obstack_init(&asflags_obst);
364 const char *assembler = getenv("CPARSER_AS");
365 if (assembler != NULL) {
366 obstack_printf(&asflags_obst, "%s ", assembler);
368 if (target_triple != NULL)
369 obstack_printf(&asflags_obst, "%s-", target_triple);
370 obstack_printf(&asflags_obst, "%s ", ASSEMBLER);
373 obstack_printf(&asflags_obst, "%s -o %s", in, out);
374 obstack_1grow(&asflags_obst, '\0');
375 buf = obstack_finish(&asflags_obst);
381 int err = system(buf);
383 fprintf(stderr, "assembler reported an error\n");
387 obstack_free(&asflags_obst, NULL);
390 static void print_file_name(const char *file)
392 add_flag(&ldflags_obst, "-print-file-name=%s", file);
394 obstack_1grow(&ldflags_obst, '\0');
395 const char *flags = obstack_finish(&ldflags_obst);
397 /* construct commandline */
398 const char *linker = getenv("CPARSER_LINK");
399 if (linker != NULL) {
400 obstack_printf(&ldflags_obst, "%s ", linker);
402 if (target_triple != NULL)
403 obstack_printf(&ldflags_obst, "%s-", target_triple);
404 obstack_printf(&ldflags_obst, "%s ", LINKER);
406 obstack_printf(&ldflags_obst, "%s ", linker);
407 obstack_printf(&ldflags_obst, "%s", flags);
408 obstack_1grow(&ldflags_obst, '\0');
410 char *commandline = obstack_finish(&ldflags_obst);
415 int err = system(commandline);
416 if (err != EXIT_SUCCESS) {
417 fprintf(stderr, "linker reported an error\n");
422 static const char *try_dir(const char *dir)
426 if (access(dir, R_OK | W_OK | X_OK) == 0)
431 static const char *get_tempdir(void)
433 static const char *tmpdir = NULL;
439 tmpdir = try_dir(getenv("TMPDIR"));
441 tmpdir = try_dir(getenv("TMP"));
443 tmpdir = try_dir(getenv("TEMP"));
447 tmpdir = try_dir(P_tmpdir);
451 tmpdir = try_dir("/var/tmp");
453 tmpdir = try_dir("/usr/tmp");
455 tmpdir = try_dir("/tmp");
464 /* cheap and nasty mkstemp replacement */
465 static int mkstemp(char *templ)
468 return open(templ, O_RDWR|O_CREAT|O_EXCL|O_BINARY, 0600);
473 * an own version of tmpnam, which: writes in a buffer, emits no warnings
474 * during linking (like glibc/gnu ld do for tmpnam)...
476 static FILE *make_temp_file(char *buffer, size_t buflen, const char *prefix)
478 const char *tempdir = get_tempdir();
480 snprintf(buffer, buflen, "%s/%sXXXXXX", tempdir, prefix);
482 int fd = mkstemp(buffer);
484 fprintf(stderr, "couldn't create temporary file: %s\n",
488 FILE *out = fdopen(fd, "w");
490 fprintf(stderr, "couldn't create temporary file FILE*\n");
494 file_list_entry_t *entry = xmalloc(sizeof(*entry));
495 memset(entry, 0, sizeof(*entry));
497 size_t name_len = strlen(buffer) + 1;
498 char *name = malloc(name_len);
499 memcpy(name, buffer, name_len);
502 entry->next = temp_files;
508 static void free_temp_files(void)
510 file_list_entry_t *entry = temp_files;
511 file_list_entry_t *next;
512 for ( ; entry != NULL; entry = next) {
516 free((char*) entry->name);
522 typedef enum compile_mode_t {
538 static void usage(const char *argv0)
540 fprintf(stderr, "Usage %s [options] input [-o output]\n", argv0);
543 static void print_cparser_version(void)
545 printf("cparser (%s) using libFirm (%u.%u",
546 cparser_REVISION, ir_get_version_major(),
547 ir_get_version_minor());
549 const char *revision = ir_get_version_revision();
550 if (revision[0] != 0) {
552 fputs(revision, stdout);
555 const char *build = ir_get_version_build();
558 fputs(build, stdout);
561 puts("This is free software; see the source for copying conditions. There is NO\n"
562 "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n");
565 static void print_help(const char *argv0)
569 puts("\t-fhelp Display help about firm optimisation options");
570 puts("\t-bhelp Display help about firm backend options");
571 puts("A big number of gcc flags is also supported");
574 static void set_be_option(const char *arg)
576 int res = be_parse_arg(arg);
581 static void set_option(const char *arg)
583 int res = firm_option(arg);
588 static void copy_file(FILE *dest, FILE *input)
592 while (!feof(input) && !ferror(dest)) {
593 size_t read = fread(buf, 1, sizeof(buf), input);
594 if (fwrite(buf, 1, read, dest) != read) {
595 perror("couldn't write output");
600 static inline bool streq(char const* a, char const* b)
602 return strcmp(a, b) == 0;
605 static inline bool strstart(char const* str, char const* start)
610 } while (*str++ == *start++);
614 static FILE *open_file(const char *filename)
616 if (streq(filename, "-")) {
620 FILE *in = fopen(filename, "r");
622 fprintf(stderr, "Couldn't open '%s': %s\n", filename,
630 static filetype_t get_filetype_from_string(const char *string)
632 if (streq(string, "c") || streq(string, "c-header"))
634 if (streq(string, "c++") || streq(string, "c++-header"))
636 if (streq(string, "assembler"))
637 return FILETYPE_PREPROCESSED_ASSEMBLER;
638 if (streq(string, "assembler-with-cpp"))
639 return FILETYPE_ASSEMBLER;
640 if (streq(string, "none"))
641 return FILETYPE_AUTODETECT;
643 return FILETYPE_UNKNOWN;
647 * Initialize firm codegeneration for a specific operating system.
648 * The argument is the operating system part of a target-triple */
649 static bool set_os_support(const char *os)
651 wchar_atomic_kind = ATOMIC_TYPE_INT;
652 force_long_double_size = 0;
653 enable_main_collect2_hack = false;
655 if (strstr(os, "linux") != NULL || strstr(os, "bsd") != NULL
656 || streq(os, "solaris")) {
657 set_be_option("ia32-gasmode=elf");
658 set_create_ld_ident(create_name_linux_elf);
659 } else if (streq(os, "darwin")) {
660 force_long_double_size = 16;
661 set_be_option("ia32-gasmode=macho");
662 set_be_option("ia32-stackalign=4");
663 set_be_option("pic=true");
664 set_create_ld_ident(create_name_macho);
665 } else if (strstr(os, "mingw") != NULL || streq(os, "win32")) {
666 wchar_atomic_kind = ATOMIC_TYPE_USHORT;
667 enable_main_collect2_hack = true;
668 set_be_option("ia32-gasmode=mingw");
669 set_create_ld_ident(create_name_win32);
677 static bool parse_target_triple(const char *arg)
679 const char *manufacturer = strchr(arg, '-');
680 if (manufacturer == NULL) {
681 fprintf(stderr, "Target-triple is not in the form 'cpu_type-manufacturer-operating_system'\n");
686 const char *os = strchr(manufacturer, '-');
688 fprintf(stderr, "Target-triple is not in the form 'cpu_type-manufacturer-operating_system'\n");
693 /* Note: Triples are more or less defined by what the config.guess and
694 * config.sub scripts from GNU autoconf emit. We have to lookup there what
695 * triples are possible */
697 /* process cpu type */
698 if (strstart(arg, "i386-")) {
699 be_parse_arg("isa=ia32");
700 be_parse_arg("ia32-arch=i386");
701 } else if (strstart(arg, "i486-")) {
702 be_parse_arg("isa=ia32");
703 be_parse_arg("ia32-arch=i486");
704 } else if (strstart(arg, "i586-")) {
705 be_parse_arg("isa=ia32");
706 be_parse_arg("ia32-arch=i586");
707 } else if (strstart(arg, "i686-")) {
708 be_parse_arg("isa=ia32");
709 be_parse_arg("ia32-arch=i686");
710 } else if (strstart(arg, "i786-")) {
711 be_parse_arg("isa=ia32");
712 be_parse_arg("ia32-arch=pentium4");
713 } else if (strstart(arg, "x86_64")) {
714 be_parse_arg("isa=amd64");
715 } else if (strstart(arg, "sparc-")) {
716 be_parse_arg("isa=sparc");
717 } else if (strstart(arg, "arm-")) {
718 be_parse_arg("isa=arm");
720 fprintf(stderr, "Unknown cpu in triple '%s'\n", arg);
724 /* process manufacturer, alot of people incorrectly leave out the
725 * manufacturer instead of using unknown- */
726 if (strstart(manufacturer, "linux")) {
728 manufacturer = "unknown-";
731 /* process operating system */
732 if (!set_os_support(os)) {
733 fprintf(stderr, "Unknown operating system '%s' in triple '%s'\n", os, arg);
741 int main(int argc, char **argv)
745 const char *dumpfunction = NULL;
746 const char *print_file_name_file = NULL;
747 compile_mode_t mode = CompileAssembleLink;
749 int result = EXIT_SUCCESS;
750 char cpu_arch[16] = "ia32";
751 file_list_entry_t *files = NULL;
752 file_list_entry_t *last_file = NULL;
753 bool construct_dep_target = false;
754 bool do_timing = false;
755 struct obstack file_obst;
757 atexit(free_temp_files);
759 /* hack for now... */
760 if (strstr(argv[0], "pptest") != NULL) {
761 extern int pptest_main(int argc, char **argv);
762 return pptest_main(argc, argv);
765 obstack_init(&cppflags_obst);
766 obstack_init(&ldflags_obst);
767 obstack_init(&file_obst);
769 #define GET_ARG_AFTER(def, args) \
770 def = &arg[sizeof(args)-1]; \
771 if (def[0] == '\0') { \
774 fprintf(stderr, "error: expected argument after '" args "'\n"); \
775 argument_errors = true; \
779 if (def[0] == '-' && def[1] != '\0') { \
780 fprintf(stderr, "error: expected argument after '" args "'\n"); \
781 argument_errors = true; \
786 #define SINGLE_OPTION(ch) (option[0] == (ch) && option[1] == '\0')
788 /* early options parsing (find out optimisation level and OS) */
789 for (int i = 1; i < argc; ++i) {
790 const char *arg = argv[i];
794 const char *option = &arg[1];
795 if (option[0] == 'O') {
796 sscanf(&option[1], "%d", &opt_level);
801 #if defined(_WIN32) || defined(__CYGWIN__)
802 set_os_support("win32");
803 #elif defined(__APPLE__)
804 set_os_support("darwin");
806 set_os_support("linux");
809 /* apply optimisation level */
812 set_option("no-opt");
815 set_option("no-inline");
819 /* use_builtins = true; */
822 set_option("thread-jumps");
823 set_option("if-conversion");
826 set_option("strict-aliasing");
827 set_option("inline");
828 set_option("deconv");
829 set_be_option("omitfp");
833 const char *target = getenv("TARGET");
835 parse_target_triple(target);
837 /* parse rest of options */
838 standard = STANDARD_DEFAULT;
839 unsigned features_on = 0;
840 unsigned features_off = 0;
841 filetype_t forced_filetype = FILETYPE_AUTODETECT;
842 bool help_displayed = false;
843 bool argument_errors = false;
844 for (int i = 1; i < argc; ++i) {
845 const char *arg = argv[i];
846 if (arg[0] == '-' && arg[1] != '\0') {
848 const char *option = &arg[1];
849 if (option[0] == 'o') {
850 GET_ARG_AFTER(outname, "-o");
851 } else if (option[0] == 'g') {
852 set_be_option("debuginfo=stabs");
853 set_be_option("omitfp=no");
854 set_be_option("ia32-nooptcc=yes");
855 } else if (SINGLE_OPTION('c')) {
856 mode = CompileAssemble;
857 } else if (SINGLE_OPTION('E')) {
858 mode = PreprocessOnly;
859 } else if (SINGLE_OPTION('S')) {
861 } else if (option[0] == 'O') {
863 } else if (option[0] == 'I') {
865 GET_ARG_AFTER(opt, "-I");
866 add_flag(&cppflags_obst, "-I%s", opt);
867 } else if (option[0] == 'D') {
869 GET_ARG_AFTER(opt, "-D");
870 add_flag(&cppflags_obst, "-D%s", opt);
871 } else if (option[0] == 'U') {
873 GET_ARG_AFTER(opt, "-U");
874 add_flag(&cppflags_obst, "-U%s", opt);
875 } else if (option[0] == 'l') {
877 GET_ARG_AFTER(opt, "-l");
878 add_flag(&ldflags_obst, "-l%s", opt);
879 } else if (option[0] == 'L') {
881 GET_ARG_AFTER(opt, "-L");
882 add_flag(&ldflags_obst, "-L%s", opt);
883 } else if (SINGLE_OPTION('v')) {
885 } else if (SINGLE_OPTION('w')) {
886 memset(&warning, 0, sizeof(warning));
887 } else if (option[0] == 'x') {
889 GET_ARG_AFTER(opt, "-x");
890 forced_filetype = get_filetype_from_string(opt);
891 if (forced_filetype == FILETYPE_UNKNOWN) {
892 fprintf(stderr, "Unknown language '%s'\n", opt);
893 argument_errors = true;
895 } else if (streq(option, "M")) {
896 mode = PreprocessOnly;
897 add_flag(&cppflags_obst, "-M");
898 } else if (streq(option, "MMD") ||
899 streq(option, "MD")) {
900 construct_dep_target = true;
901 add_flag(&cppflags_obst, "-%s", option);
902 } else if (streq(option, "MM") ||
903 streq(option, "MP")) {
904 add_flag(&cppflags_obst, "-%s", option);
905 } else if (streq(option, "MT") ||
906 streq(option, "MQ") ||
907 streq(option, "MF")) {
909 GET_ARG_AFTER(opt, "-MT");
910 add_flag(&cppflags_obst, "-%s", option);
911 add_flag(&cppflags_obst, "%s", opt);
912 } else if (streq(option, "include")) {
914 GET_ARG_AFTER(opt, "-include");
915 add_flag(&cppflags_obst, "-include");
916 add_flag(&cppflags_obst, "%s", opt);
917 } else if (streq(option, "isystem")) {
919 GET_ARG_AFTER(opt, "-isystem");
920 add_flag(&cppflags_obst, "-isystem");
921 add_flag(&cppflags_obst, "%s", opt);
922 #if defined(linux) || defined(__linux) || defined(__linux__) || defined(__CYGWIN__)
923 } else if (streq(option, "pthread")) {
924 /* set flags for the preprocessor */
925 add_flag(&cppflags_obst, "-D_REENTRANT");
926 /* set flags for the linker */
927 add_flag(&ldflags_obst, "-lpthread");
929 } else if (streq(option, "nostdinc")
930 || streq(option, "trigraphs")) {
931 /* pass these through to the preprocessor */
932 add_flag(&cppflags_obst, "%s", arg);
933 } else if (streq(option, "pipe")) {
934 /* here for gcc compatibility */
935 } else if (streq(option, "static")) {
936 add_flag(&ldflags_obst, "-static");
937 } else if (streq(option, "shared")) {
938 add_flag(&ldflags_obst, "-shared");
939 } else if (option[0] == 'f') {
940 char const *orig_opt;
941 GET_ARG_AFTER(orig_opt, "-f");
943 if (strstart(orig_opt, "input-charset=")) {
944 char const* const encoding = strchr(orig_opt, '=') + 1;
945 select_input_encoding(encoding);
946 } else if (streq(orig_opt, "verbose-asm")) {
947 /* ignore: we always print verbose assembler */
949 char const *opt = orig_opt;
950 bool truth_value = true;
951 if (opt[0] == 'n' && opt[1] == 'o' && opt[2] == '-') {
956 if (streq(opt, "builtins")) {
957 use_builtins = truth_value;
958 } else if (streq(opt, "dollars-in-identifiers")) {
959 allow_dollar_in_symbol = truth_value;
960 } else if (streq(opt, "omit-frame-pointer")) {
961 set_be_option(truth_value ? "omitfp" : "omitfp=no");
962 } else if (streq(opt, "short-wchar")) {
963 wchar_atomic_kind = truth_value ? ATOMIC_TYPE_USHORT
965 } else if (streq(opt, "signed-char")) {
966 char_is_signed = truth_value;
967 } else if (streq(opt, "strength-reduce")) {
968 firm_option(truth_value ? "strength-red" : "no-strength-red");
969 } else if (streq(opt, "syntax-only")) {
970 mode = truth_value ? ParseOnly : CompileAssembleLink;
971 } else if (streq(opt, "unsigned-char")) {
972 char_is_signed = !truth_value;
973 } else if (streq(opt, "freestanding")) {
975 } else if (streq(opt, "hosted")) {
976 freestanding = false;
977 } else if (truth_value == false &&
978 streq(opt, "asynchronous-unwind-tables")) {
979 /* nothing todo, a gcc feature which we don't support
980 * anyway was deactivated */
981 } else if (strstart(orig_opt, "align-loops=") ||
982 strstart(orig_opt, "align-jumps=") ||
983 strstart(orig_opt, "align-functions=")) {
984 fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
985 } else if (strstart(orig_opt, "message-length=")) {
986 /* ignore: would only affect error message format */
987 } else if (streq(opt, "fast-math") ||
988 streq(opt, "jump-tables") ||
989 streq(opt, "expensive-optimizations") ||
990 streq(opt, "common") ||
991 streq(opt, "optimize-sibling-calls") ||
992 streq(opt, "align-loops") ||
993 streq(opt, "align-jumps") ||
994 streq(opt, "align-functions") ||
996 fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
998 int res = firm_option(orig_opt);
1000 fprintf(stderr, "error: unknown Firm option '-f%s'\n",
1002 argument_errors = true;
1004 } else if (res == -1) {
1005 help_displayed = true;
1009 } else if (option[0] == 'b') {
1011 GET_ARG_AFTER(opt, "-b");
1012 int res = be_parse_arg(opt);
1014 fprintf(stderr, "error: unknown Firm backend option '-b %s'\n",
1016 argument_errors = true;
1017 } else if (res == -1) {
1018 help_displayed = true;
1019 } else if (strstart(opt, "isa=")) {
1020 strncpy(cpu_arch, opt, sizeof(cpu_arch));
1022 } else if (option[0] == 'W') {
1023 if (option[1] == '\0') {
1024 /* ignore -W, our defaults are already quite verbose */
1025 } else if (strstart(option + 1, "p,")) {
1026 // pass options directly to the preprocessor
1028 GET_ARG_AFTER(opt, "-Wp,");
1029 add_flag(&cppflags_obst, "-Wp,%s", opt);
1030 } else if (strstart(option + 1, "l,")) {
1031 // pass options directly to the linker
1033 GET_ARG_AFTER(opt, "-Wl,");
1034 add_flag(&ldflags_obst, "-Wl,%s", opt);
1035 } else if (streq(option + 1, "no-trigraphs")
1036 || streq(option + 1, "undef")) {
1037 add_flag(&cppflags_obst, "%s", arg);
1039 set_warning_opt(&option[1]);
1041 } else if (option[0] == 'm') {
1046 GET_ARG_AFTER(opt, "-m");
1047 if (strstart(opt, "target=")) {
1048 GET_ARG_AFTER(opt, "-mtarget=");
1049 if (!parse_target_triple(opt))
1050 argument_errors = true;
1051 } else if (strstart(opt, "triple=")) {
1052 GET_ARG_AFTER(opt, "-mtriple=");
1053 if (!parse_target_triple(opt))
1054 argument_errors = true;
1055 } else if (strstart(opt, "arch=")) {
1056 GET_ARG_AFTER(opt, "-march=");
1057 snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
1058 int res = be_parse_arg(arch_opt);
1060 fprintf(stderr, "Unknown architecture '%s'\n", arch_opt);
1061 argument_errors = true;
1063 snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
1064 int res = be_parse_arg(arch_opt);
1066 argument_errors = true;
1068 } else if (strstart(opt, "tune=")) {
1069 GET_ARG_AFTER(opt, "-mtune=");
1070 snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
1071 int res = be_parse_arg(arch_opt);
1073 argument_errors = true;
1074 } else if (strstart(opt, "cpu=")) {
1075 GET_ARG_AFTER(opt, "-mcpu=");
1076 snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
1077 int res = be_parse_arg(arch_opt);
1079 argument_errors = true;
1080 } else if (strstart(opt, "fpmath=")) {
1081 GET_ARG_AFTER(opt, "-mfpmath=");
1082 if (streq(opt, "387"))
1084 else if (streq(opt, "sse"))
1087 fprintf(stderr, "error: option -mfpumath supports only 387 or sse\n");
1088 argument_errors = true;
1090 if (!argument_errors) {
1091 snprintf(arch_opt, sizeof(arch_opt), "%s-fpunit=%s", cpu_arch, opt);
1092 int res = be_parse_arg(arch_opt);
1094 argument_errors = true;
1096 } else if (strstart(opt, "preferred-stack-boundary=")) {
1097 GET_ARG_AFTER(opt, "-mpreferred-stack-boundary=");
1098 snprintf(arch_opt, sizeof(arch_opt), "%s-stackalign=%s", cpu_arch, opt);
1099 int res = be_parse_arg(arch_opt);
1101 argument_errors = true;
1102 } else if (streq(opt, "omit-leaf-frame-pointer")) {
1103 set_be_option("omitleaffp=1");
1104 } else if (streq(opt, "no-omit-leaf-frame-pointer")) {
1105 set_be_option("omitleaffp=0");
1106 } else if (streq(opt, "rtd")) {
1107 default_calling_convention = CC_STDCALL;
1108 } else if (strstart(opt, "regparm=")) {
1109 fprintf(stderr, "error: regparm convention not supported yet\n");
1110 argument_errors = true;
1111 } else if (streq(opt, "soft-float")) {
1112 fprintf(stderr, "error: software floatingpoint not supported yet\n");
1113 argument_errors = true;
1115 long int value = strtol(opt, NULL, 10);
1117 fprintf(stderr, "error: wrong option '-m %s'\n", opt);
1118 argument_errors = true;
1119 } else if (value != 16 && value != 32 && value != 64) {
1120 fprintf(stderr, "error: option -m supports only 16, 32 or 64\n");
1121 argument_errors = true;
1123 machine_size = (unsigned int)value;
1126 } else if (streq(option, "pg")) {
1127 set_be_option("gprof");
1128 add_flag(&ldflags_obst, "-pg");
1129 } else if (streq(option, "pedantic") ||
1130 streq(option, "ansi")) {
1131 fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg);
1132 } else if (streq(option, "shared")) {
1133 add_flag(&ldflags_obst, "-shared");
1134 } else if (strstart(option, "std=")) {
1135 const char *const o = &option[4];
1137 streq(o, "c++") ? STANDARD_CXX98 :
1138 streq(o, "c++98") ? STANDARD_CXX98 :
1139 streq(o, "c89") ? STANDARD_C89 :
1140 streq(o, "c99") ? STANDARD_C99 :
1141 streq(o, "c9x") ? STANDARD_C99 : // deprecated
1142 streq(o, "gnu++98") ? STANDARD_GNUXX98 :
1143 streq(o, "gnu89") ? STANDARD_GNU89 :
1144 streq(o, "gnu99") ? STANDARD_GNU99 :
1145 streq(o, "gnu9x") ? STANDARD_GNU99 : // deprecated
1146 streq(o, "iso9899:1990") ? STANDARD_C89 :
1147 streq(o, "iso9899:199409") ? STANDARD_C90 :
1148 streq(o, "iso9899:1999") ? STANDARD_C99 :
1149 streq(o, "iso9899:199x") ? STANDARD_C99 : // deprecated
1150 (fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg), standard);
1151 } else if (streq(option, "version")) {
1152 print_cparser_version();
1153 } else if (strstart(option, "print-file-name=")) {
1154 GET_ARG_AFTER(print_file_name_file, "-print-file-name=");
1155 } else if (option[0] == '-') {
1156 /* double dash option */
1158 if (streq(option, "gcc")) {
1159 features_on |= _GNUC;
1160 features_off &= ~_GNUC;
1161 } else if (streq(option, "no-gcc")) {
1162 features_on &= ~_GNUC;
1163 features_off |= _GNUC;
1164 } else if (streq(option, "ms")) {
1166 features_off &= ~_MS;
1167 } else if (streq(option, "no-ms")) {
1168 features_on &= ~_MS;
1169 features_off |= _MS;
1170 } else if (streq(option, "strict")) {
1172 } else if (streq(option, "lextest")) {
1174 } else if (streq(option, "benchmark")) {
1175 mode = BenchmarkParser;
1176 } else if (streq(option, "print-ast")) {
1178 } else if (streq(option, "print-implicit-cast")) {
1179 print_implicit_casts = true;
1180 } else if (streq(option, "print-parenthesis")) {
1181 print_parenthesis = true;
1182 } else if (streq(option, "print-fluffy")) {
1184 } else if (streq(option, "print-caml")) {
1186 } else if (streq(option, "print-jna")) {
1188 } else if (streq(option, "jna-limit")) {
1191 fprintf(stderr, "error: "
1192 "expected argument after '--jna-limit'\n");
1193 argument_errors = true;
1196 jna_limit_output(argv[i]);
1197 } else if (streq(option, "jna-libname")) {
1200 fprintf(stderr, "error: "
1201 "expected argument after '--jna-libname'\n");
1202 argument_errors = true;
1205 jna_set_libname(argv[i]);
1206 } else if (streq(option, "time")) {
1208 } else if (streq(option, "version")) {
1209 print_cparser_version();
1210 return EXIT_SUCCESS;
1211 } else if (streq(option, "help")) {
1212 print_help(argv[0]);
1213 help_displayed = true;
1214 } else if (streq(option, "dump-function")) {
1217 fprintf(stderr, "error: "
1218 "expected argument after '--dump-function'\n");
1219 argument_errors = true;
1222 dumpfunction = argv[i];
1224 } else if (streq(option, "export-ir")) {
1225 mode = CompileExportIR;
1227 fprintf(stderr, "error: unknown argument '%s'\n", arg);
1228 argument_errors = true;
1231 fprintf(stderr, "error: unknown argument '%s'\n", arg);
1232 argument_errors = true;
1235 filetype_t type = forced_filetype;
1236 if (type == FILETYPE_AUTODETECT) {
1237 if (streq(arg, "-")) {
1238 /* - implicitly means C source file */
1241 const char *suffix = strrchr(arg, '.');
1242 /* Ensure there is at least one char before the suffix */
1243 if (suffix != NULL && suffix != arg) {
1246 streq(suffix, "S") ? FILETYPE_ASSEMBLER :
1247 streq(suffix, "a") ? FILETYPE_OBJECT :
1248 streq(suffix, "c") ? FILETYPE_C :
1249 streq(suffix, "C") ? FILETYPE_CXX :
1250 streq(suffix, "cc") ? FILETYPE_CXX :
1251 streq(suffix, "cp") ? FILETYPE_CXX :
1252 streq(suffix, "cpp") ? FILETYPE_CXX :
1253 streq(suffix, "CPP") ? FILETYPE_CXX :
1254 streq(suffix, "cxx") ? FILETYPE_CXX :
1255 streq(suffix, "c++") ? FILETYPE_CXX :
1256 streq(suffix, "ii") ? FILETYPE_CXX :
1257 streq(suffix, "h") ? FILETYPE_C :
1258 streq(suffix, "ir") ? FILETYPE_IR :
1259 streq(suffix, "o") ? FILETYPE_OBJECT :
1260 streq(suffix, "s") ? FILETYPE_PREPROCESSED_ASSEMBLER :
1261 streq(suffix, "so") ? FILETYPE_OBJECT :
1262 FILETYPE_OBJECT; /* gcc behavior: unknown file extension means object file */
1267 file_list_entry_t *entry
1268 = obstack_alloc(&file_obst, sizeof(entry[0]));
1269 memset(entry, 0, sizeof(entry[0]));
1273 if (last_file != NULL) {
1274 last_file->next = entry;
1282 if (help_displayed) {
1283 return !argument_errors;
1286 if (print_file_name_file != NULL) {
1287 print_file_name(print_file_name_file);
1288 return EXIT_SUCCESS;
1290 if (files == NULL) {
1291 fprintf(stderr, "error: no input files specified\n");
1292 argument_errors = true;
1295 if (argument_errors) {
1297 return EXIT_FAILURE;
1300 /* we do the lowering in ast2firm */
1301 firm_opt.lower_bitfields = FALSE;
1303 /* set the c_mode here, types depends on it */
1304 c_mode |= features_on;
1305 c_mode &= ~features_off;
1308 byte_order_big_endian = be_get_backend_param()->byte_order_big_endian;
1309 init_symbol_table();
1322 if (construct_dep_target) {
1323 if (outname != 0 && strlen(outname) >= 2) {
1324 get_output_name(dep_target, sizeof(dep_target), outname, ".d");
1326 get_output_name(dep_target, sizeof(dep_target), files->name, ".d");
1329 dep_target[0] = '\0';
1332 char outnamebuf[4096];
1333 if (outname == NULL) {
1334 const char *filename = files->name;
1337 case BenchmarkParser:
1343 case PreprocessOnly:
1348 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".s");
1349 outname = outnamebuf;
1351 case CompileAssemble:
1352 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".o");
1353 outname = outnamebuf;
1356 get_output_name(outnamebuf, sizeof(outnamebuf), dumpfunction,
1358 outname = outnamebuf;
1360 case CompileExportIR:
1361 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".ir");
1362 outname = outnamebuf;
1364 case CompileAssembleLink:
1374 assert(outname != NULL);
1377 if (streq(outname, "-")) {
1380 out = fopen(outname, "w");
1382 fprintf(stderr, "Couldn't open '%s' for writing: %s\n", outname,
1384 return EXIT_FAILURE;
1388 file_list_entry_t *file;
1389 bool already_constructed_firm = false;
1390 for (file = files; file != NULL; file = file->next) {
1391 char asm_tempfile[1024];
1392 const char *filename = file->name;
1393 filetype_t filetype = file->type;
1395 if (filetype == FILETYPE_OBJECT)
1399 if (mode == LexTest) {
1401 in = open_file(filename);
1402 lextest(in, filename);
1404 return EXIT_SUCCESS;
1407 FILE *preprocessed_in = NULL;
1408 filetype_t next_filetype = filetype;
1411 next_filetype = FILETYPE_PREPROCESSED_C;
1414 next_filetype = FILETYPE_PREPROCESSED_CXX;
1416 case FILETYPE_ASSEMBLER:
1417 next_filetype = FILETYPE_PREPROCESSED_ASSEMBLER;
1420 /* no support for input on FILE* yet */
1422 panic("internal compiler error: in for preprocessor != NULL");
1424 preprocessed_in = preprocess(filename, filetype);
1425 if (mode == PreprocessOnly) {
1426 copy_file(out, preprocessed_in);
1427 int result = pclose(preprocessed_in);
1429 /* remove output file in case of error */
1430 if (out != stdout && result != EXIT_SUCCESS) {
1436 in = preprocessed_in;
1437 filetype = next_filetype;
1445 if (mode == Compile) {
1448 asm_out = make_temp_file(asm_tempfile, sizeof(asm_tempfile), "ccs");
1452 in = open_file(filename);
1454 /* preprocess and compile */
1455 if (filetype == FILETYPE_PREPROCESSED_C) {
1456 char const* invalid_mode;
1459 case STANDARD_C89: c_mode = _C89; break;
1460 /* TODO determine difference between these two */
1461 case STANDARD_C90: c_mode = _C89; break;
1462 case STANDARD_C99: c_mode = _C89 | _C99; break;
1463 case STANDARD_GNU89: c_mode = _C89 | _GNUC; break;
1467 "warning: command line option \"-std=%s\" is not valid for C\n",
1470 case STANDARD_DEFAULT:
1471 case STANDARD_GNU99: c_mode = _C89 | _C99 | _GNUC; break;
1473 case STANDARD_CXX98: invalid_mode = "c++98"; goto default_c_warn;
1474 case STANDARD_GNUXX98: invalid_mode = "gnu98"; goto default_c_warn;
1477 } else if (filetype == FILETYPE_PREPROCESSED_CXX) {
1478 char const* invalid_mode;
1480 case STANDARD_C89: invalid_mode = "c89"; goto default_cxx_warn;
1481 case STANDARD_C90: invalid_mode = "c90"; goto default_cxx_warn;
1482 case STANDARD_C99: invalid_mode = "c99"; goto default_cxx_warn;
1483 case STANDARD_GNU89: invalid_mode = "gnu89"; goto default_cxx_warn;
1484 case STANDARD_GNU99: invalid_mode = "gnu99"; goto default_cxx_warn;
1487 case STANDARD_CXX98: c_mode = _CXX; break;
1491 "warning: command line option \"-std=%s\" is not valid for C++\n",
1493 case STANDARD_DEFAULT:
1494 case STANDARD_GNUXX98: c_mode = _CXX | _GNUC; break;
1498 c_mode |= features_on;
1499 c_mode &= ~features_off;
1501 /* do the actual parsing */
1502 ir_timer_t *t_parsing = ir_timer_new();
1503 timer_register(t_parsing, "Frontend: Parsing");
1504 timer_push(t_parsing);
1506 translation_unit_t *const unit = do_parsing(in, filename);
1507 timer_pop(t_parsing);
1509 /* prints the AST even if errors occurred */
1510 if (mode == PrintAst) {
1515 if (error_count > 0) {
1516 /* parsing failed because of errors */
1517 fprintf(stderr, "%u error(s), %u warning(s)\n", error_count,
1519 result = EXIT_FAILURE;
1521 } else if (warning_count > 0) {
1522 fprintf(stderr, "%u warning(s)\n", warning_count);
1525 if (in == preprocessed_in) {
1526 int pp_result = pclose(preprocessed_in);
1527 if (pp_result != EXIT_SUCCESS) {
1528 /* remove output file */
1531 return EXIT_FAILURE;
1535 if (mode == BenchmarkParser) {
1537 } else if (mode == PrintFluffy) {
1538 write_fluffy_decls(out, unit);
1540 } else if (mode == PrintCaml) {
1541 write_caml_decls(out, unit);
1543 } else if (mode == PrintJna) {
1544 write_jna_decls(out, unit);
1548 /* build the firm graph */
1549 ir_timer_t *t_construct = ir_timer_new();
1550 timer_register(t_construct, "Frontend: Graph construction");
1551 timer_push(t_construct);
1552 if (already_constructed_firm) {
1553 panic("compiling multiple files/translation units not possible");
1555 translation_unit_to_firm(unit);
1556 already_constructed_firm = true;
1557 timer_pop(t_construct);
1560 if (mode == ParseOnly) {
1564 if (mode == CompileDump) {
1566 ident *id = new_id_from_str(dumpfunction);
1567 ir_graph *irg = NULL;
1568 int n_irgs = get_irp_n_irgs();
1569 for (int i = 0; i < n_irgs; ++i) {
1570 ir_graph *tirg = get_irp_irg(i);
1571 ident *irg_id = get_entity_ident(get_irg_entity(tirg));
1579 fprintf(stderr, "No graph for function '%s' found\n",
1581 return EXIT_FAILURE;
1584 dump_ir_graph_file(out, irg);
1586 return EXIT_SUCCESS;
1589 if (mode == CompileExportIR) {
1592 return EXIT_SUCCESS;
1595 gen_firm_finish(asm_out, filename, have_const_functions);
1596 if (asm_out != out) {
1599 } else if (filetype == FILETYPE_IR) {
1601 ir_import(filename);
1603 } else if (filetype == FILETYPE_PREPROCESSED_ASSEMBLER) {
1604 copy_file(asm_out, in);
1605 if (in == preprocessed_in) {
1606 int pp_result = pclose(preprocessed_in);
1607 if (pp_result != EXIT_SUCCESS) {
1608 /* remove output in error case */
1614 if (asm_out != out) {
1619 if (mode == Compile)
1622 /* if we're here then we have preprocessed assembly */
1623 filename = asm_tempfile;
1624 filetype = FILETYPE_PREPROCESSED_ASSEMBLER;
1627 if (filetype == FILETYPE_PREPROCESSED_ASSEMBLER) {
1629 const char *filename_o;
1630 if (mode == CompileAssemble) {
1632 filename_o = outname;
1634 FILE *tempf = make_temp_file(temp, sizeof(temp), "cco");
1639 assemble(filename_o, filename);
1641 size_t len = strlen(filename_o) + 1;
1642 filename = obstack_copy(&file_obst, filename_o, len);
1643 filetype = FILETYPE_OBJECT;
1646 /* ok we're done here, process next file */
1647 file->name = filename;
1648 file->type = filetype;
1651 if (result != EXIT_SUCCESS) {
1657 /* link program file */
1658 if (mode == CompileAssembleLink) {
1659 obstack_1grow(&ldflags_obst, '\0');
1660 const char *flags = obstack_finish(&ldflags_obst);
1662 /* construct commandline */
1663 const char *linker = getenv("CPARSER_LINK");
1664 if (linker != NULL) {
1665 obstack_printf(&file_obst, "%s ", linker);
1667 if (target_triple != NULL)
1668 obstack_printf(&file_obst, "%s-", target_triple);
1669 obstack_printf(&file_obst, "%s ", LINKER);
1672 for (file_list_entry_t *entry = files; entry != NULL;
1673 entry = entry->next) {
1674 if (entry->type != FILETYPE_OBJECT)
1677 add_flag(&file_obst, "%s", entry->name);
1680 add_flag(&file_obst, "-o");
1681 add_flag(&file_obst, outname);
1682 obstack_printf(&file_obst, "%s", flags);
1683 obstack_1grow(&file_obst, '\0');
1685 char *commandline = obstack_finish(&file_obst);
1690 int err = system(commandline);
1691 if (err != EXIT_SUCCESS) {
1692 fprintf(stderr, "linker reported an error\n");
1693 return EXIT_FAILURE;
1700 obstack_free(&cppflags_obst, NULL);
1701 obstack_free(&ldflags_obst, NULL);
1702 obstack_free(&file_obst, NULL);
1712 exit_symbol_table();
1713 return EXIT_SUCCESS;