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"
85 #define PREPROCESSOR "gcc -E -m32 -U__STRICT_ANSI__"
87 #define PREPROCESSOR "cpp -m32 -U__STRICT_ANSI__"
92 #define LINKER "gcc -m32"
97 #define ASSEMBLER "gcc -c -xassembler"
99 #define ASSEMBLER "as --32"
103 /** The current c mode/dialect. */
104 unsigned int c_mode = _C89 | _ANSI | _C99 | _GNUC;
106 /** The 'machine size', 16, 32 or 64 bit, 32bit is the default. */
107 unsigned int machine_size = 32;
109 /** true if the char type is signed. */
110 bool char_is_signed = true;
112 /** true for strict language checking. */
113 bool strict_mode = false;
115 /** use builtins for some libc functions */
116 bool use_builtins = false;
118 /** we have extern function with const attribute. */
119 bool have_const_functions = false;
121 atomic_type_kind_t wchar_atomic_kind = ATOMIC_TYPE_INT;
123 /* to switch on printing of implicit casts */
124 extern bool print_implicit_casts;
126 /* to switch on printing of parenthesis to indicate operator precedence */
127 extern bool print_parenthesis;
130 static struct obstack cppflags_obst, ldflags_obst;
131 static char dep_target[1024];
132 static const char *outname;
134 typedef enum lang_standard_t {
135 STANDARD_DEFAULT, /* gnu99 (for C, GCC does gnu89) or gnu++98 (for C++) */
136 STANDARD_ANSI, /* c89 (for C) or c++98 (for C++) */
137 STANDARD_C89, /* ISO C90 (sic) */
138 STANDARD_C90, /* ISO C90 as modified in amendment 1 */
139 STANDARD_C99, /* ISO C99 */
140 STANDARD_GNU89, /* ISO C90 plus GNU extensions (including some C99) */
141 STANDARD_GNU99, /* ISO C99 plus GNU extensions */
142 STANDARD_CXX98, /* ISO C++ 1998 plus amendments */
143 STANDARD_GNUXX98 /* ISO C++ 1998 plus amendments and GNU extensions */
146 static lang_standard_t standard;
148 typedef struct file_list_entry_t file_list_entry_t;
150 typedef enum filetype_t {
153 FILETYPE_PREPROCESSED_C,
155 FILETYPE_PREPROCESSED_CXX,
157 FILETYPE_PREPROCESSED_ASSEMBLER,
163 struct file_list_entry_t {
164 const char *name; /**< filename or NULL for stdin */
166 file_list_entry_t *next;
169 static file_list_entry_t *temp_files;
171 #if defined(_DEBUG) || defined(FIRM_DEBUG)
173 * Debug printf implementation.
175 * @param fmt printf style format parameter
177 void dbg_printf(const char *fmt, ...)
181 if (firm_dump.debug_print) {
187 #endif /* defined(_DEBUG) || defined(FIRM_DEBUG) */
189 static void initialize_firm(void)
193 dump_consts_local(1);
194 dump_keepalive_edges(1);
197 static void get_output_name(char *buf, size_t buflen, const char *inputname,
200 if (inputname == NULL)
203 char const *const last_slash = strrchr(inputname, '/');
204 char const *const filename =
205 last_slash != NULL ? last_slash + 1 : inputname;
206 char const *const last_dot = strrchr(filename, '.');
207 char const *const name_end =
208 last_dot != NULL ? last_dot : strchr(filename, '\0');
210 int const len = snprintf(buf, buflen, "%.*s%s",
211 (int)(name_end - filename), filename, newext);
213 if (len < 0 || buflen <= (size_t)len)
215 if (buflen <= (size_t)len)
217 panic("filename too long");
220 #include "builtins.h"
222 static translation_unit_t *do_parsing(FILE *const in, const char *const input_name)
227 lexer_open_buffer(builtins, sizeof(builtins)-1, "<builtin>");
231 lexer_open_stream(in, input_name);
234 translation_unit_t *unit = finish_parsing();
238 static void lextest(FILE *in, const char *fname)
240 lexer_open_stream(in, fname);
243 lexer_next_preprocessing_token();
244 print_token(stdout, &lexer_token);
246 } while (lexer_token.type != T_EOF);
249 static void add_flag(struct obstack *obst, const char *format, ...)
254 va_start(ap, format);
258 vsnprintf(buf, sizeof(buf), format, ap);
261 obstack_1grow(obst, ' ');
263 obstack_1grow(obst, '"');
264 obstack_grow(obst, buf, len);
265 obstack_1grow(obst, '"');
267 /* escape stuff... */
268 for (char *c = buf; *c != '\0'; ++c) {
286 obstack_1grow(obst, '\\');
289 obstack_1grow(obst, *c);
296 static const char *type_to_string(type_t *type)
298 assert(type->kind == TYPE_ATOMIC);
299 return get_atomic_kind_name(type->atomic.akind);
302 static FILE *preprocess(const char *fname, filetype_t filetype)
304 static const char *common_flags = NULL;
306 if (common_flags == NULL) {
307 obstack_1grow(&cppflags_obst, '\0');
308 const char *flags = obstack_finish(&cppflags_obst);
310 /* setup default defines */
311 add_flag(&cppflags_obst, "-U__WCHAR_TYPE__");
312 add_flag(&cppflags_obst, "-D__WCHAR_TYPE__=%s", type_to_string(type_wchar_t));
313 add_flag(&cppflags_obst, "-U__SIZE_TYPE__");
314 add_flag(&cppflags_obst, "-D__SIZE_TYPE__=%s", type_to_string(type_size_t));
316 add_flag(&cppflags_obst, "-U__VERSION__");
317 add_flag(&cppflags_obst, "-D__VERSION__=\"%s\"", cparser_REVISION);
320 add_flag(&cppflags_obst, "-D__builtin_abort=abort");
321 add_flag(&cppflags_obst, "-D__builtin_abs=abs");
322 add_flag(&cppflags_obst, "-D__builtin_exit=exit");
323 add_flag(&cppflags_obst, "-D__builtin_malloc=malloc");
324 add_flag(&cppflags_obst, "-D__builtin_memcmp=memcmp");
325 add_flag(&cppflags_obst, "-D__builtin_memcpy=memcpy");
326 add_flag(&cppflags_obst, "-D__builtin_memset=memset");
327 add_flag(&cppflags_obst, "-D__builtin_strlen=strlen");
328 add_flag(&cppflags_obst, "-D__builtin_strcmp=strcmp");
329 add_flag(&cppflags_obst, "-D__builtin_strcpy=strcpy");
331 if (flags[0] != '\0') {
332 size_t len = strlen(flags);
333 obstack_1grow(&cppflags_obst, ' ');
334 obstack_grow(&cppflags_obst, flags, len);
336 obstack_1grow(&cppflags_obst, '\0');
337 common_flags = obstack_finish(&cppflags_obst);
340 assert(obstack_object_size(&cppflags_obst) == 0);
341 obstack_printf(&cppflags_obst, "%s ", PREPROCESSOR);
344 add_flag(&cppflags_obst, "-std=c99");
347 add_flag(&cppflags_obst, "-std=c++98");
349 case FILETYPE_ASSEMBLER:
350 add_flag(&cppflags_obst, "-x");
351 add_flag(&cppflags_obst, "assembler-with-cpp");
356 obstack_printf(&cppflags_obst, "%s", common_flags);
358 /* handle dependency generation */
359 if (dep_target[0] != '\0') {
360 add_flag(&cppflags_obst, "-MF");
361 add_flag(&cppflags_obst, dep_target);
362 if (outname != NULL) {
363 add_flag(&cppflags_obst, "-MQ");
364 add_flag(&cppflags_obst, outname);
367 add_flag(&cppflags_obst, fname);
369 obstack_1grow(&cppflags_obst, '\0');
370 char *buf = obstack_finish(&cppflags_obst);
375 FILE *f = popen(buf, "r");
377 fprintf(stderr, "invoking preprocessor failed\n");
381 /* we don't really need that anymore */
382 obstack_free(&cppflags_obst, buf);
387 static void assemble(const char *out, const char *in)
391 snprintf(buf, sizeof(buf), "%s %s -o %s", ASSEMBLER, in, out);
396 int err = system(buf);
398 fprintf(stderr, "assembler reported an error\n");
403 static void print_file_name(const char *file)
405 add_flag(&ldflags_obst, "-print-file-name=%s", file);
407 obstack_1grow(&ldflags_obst, '\0');
408 const char *flags = obstack_finish(&ldflags_obst);
410 /* construct commandline */
411 obstack_printf(&ldflags_obst, "%s ", LINKER);
412 obstack_printf(&ldflags_obst, "%s", flags);
413 obstack_1grow(&ldflags_obst, '\0');
415 char *commandline = obstack_finish(&ldflags_obst);
420 int err = system(commandline);
421 if (err != EXIT_SUCCESS) {
422 fprintf(stderr, "linker reported an error\n");
427 static const char *try_dir(const char *dir)
431 if (access(dir, R_OK | W_OK | X_OK) == 0)
436 static const char *get_tempdir(void)
438 static const char *tmpdir = NULL;
444 tmpdir = try_dir(getenv("TMPDIR"));
446 tmpdir = try_dir(getenv("TMP"));
448 tmpdir = try_dir(getenv("TEMP"));
452 tmpdir = try_dir(P_tmpdir);
456 tmpdir = try_dir("/var/tmp");
458 tmpdir = try_dir("/usr/tmp");
460 tmpdir = try_dir("/tmp");
469 /* cheap and nasty mkstemp replacement */
470 static int mkstemp(char *templ)
473 return open(templ, O_RDWR|O_CREAT|O_EXCL|O_BINARY, 0600);
478 * an own version of tmpnam, which: writes in a buffer, emits no warnings
479 * during linking (like glibc/gnu ld do for tmpnam)...
481 static FILE *make_temp_file(char *buffer, size_t buflen, const char *prefix)
483 const char *tempdir = get_tempdir();
485 snprintf(buffer, buflen, "%s/%sXXXXXX", tempdir, prefix);
487 int fd = mkstemp(buffer);
489 fprintf(stderr, "couldn't create temporary file: %s\n",
493 FILE *out = fdopen(fd, "w");
495 fprintf(stderr, "couldn't create temporary file FILE*\n");
499 file_list_entry_t *entry = xmalloc(sizeof(*entry));
500 memset(entry, 0, sizeof(*entry));
502 size_t name_len = strlen(buffer) + 1;
503 char *name = malloc(name_len);
504 memcpy(name, buffer, name_len);
507 entry->next = temp_files;
513 static void free_temp_files(void)
515 file_list_entry_t *entry = temp_files;
516 file_list_entry_t *next;
517 for ( ; entry != NULL; entry = next) {
521 free((char*) entry->name);
528 * Do the necessary lowering for compound parameters.
530 void lower_compound_params(void)
532 lower_params_t params;
534 params.def_ptr_alignment = 4;
535 params.flags = LF_COMPOUND_RETURN | LF_RETURN_HIDDEN;
536 params.hidden_params = ADD_HIDDEN_ALWAYS_IN_FRONT;
537 params.find_pointer_type = NULL;
538 params.ret_compound_in_regs = NULL;
539 lower_calls_with_compounds(¶ms);
542 typedef enum compile_mode_t {
558 static void usage(const char *argv0)
560 fprintf(stderr, "Usage %s input [-o output] [-c]\n", argv0);
563 static void print_cparser_version(void)
565 printf("cparser (%s) using libFirm (%u.%u",
566 cparser_REVISION, ir_get_version_major(),
567 ir_get_version_minor());
569 const char *revision = ir_get_version_revision();
570 if (revision[0] != 0) {
572 fputs(revision, stdout);
575 const char *build = ir_get_version_build();
578 fputs(build, stdout);
581 puts("This is free software; see the source for copying conditions. There is NO\n"
582 "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n");
585 static void set_be_option(const char *arg)
587 int res = firm_be_option(arg);
592 static void set_option(const char *arg)
594 int res = firm_option(arg);
599 static void copy_file(FILE *dest, FILE *input)
603 while (!feof(input) && !ferror(dest)) {
604 size_t read = fread(buf, 1, sizeof(buf), input);
605 if (fwrite(buf, 1, read, dest) != read) {
606 perror("couldn't write output");
611 static inline bool streq(char const* a, char const* b)
613 return strcmp(a, b) == 0;
616 static inline bool strstart(char const* str, char const* start)
621 } while (*str++ == *start++);
625 static FILE *open_file(const char *filename)
627 if (streq(filename, "-")) {
631 FILE *in = fopen(filename, "r");
633 fprintf(stderr, "Couldn't open '%s': %s\n", filename,
641 static filetype_t get_filetype_from_string(const char *string)
643 if (streq(string, "c") || streq(string, "c-header"))
645 if (streq(string, "c++") || streq(string, "c++-header"))
647 if (streq(string, "assembler"))
648 return FILETYPE_PREPROCESSED_ASSEMBLER;
649 if (streq(string, "assembler-with-cpp"))
650 return FILETYPE_ASSEMBLER;
651 if (streq(string, "none"))
652 return FILETYPE_AUTODETECT;
654 return FILETYPE_UNKNOWN;
657 static void init_os_support(void)
659 /* OS option must be set to the backend */
660 switch (firm_opt.os_support) {
661 case OS_SUPPORT_MINGW:
662 set_be_option("ia32-gasmode=mingw");
663 wchar_atomic_kind = ATOMIC_TYPE_USHORT;
665 case OS_SUPPORT_LINUX:
666 set_be_option("ia32-gasmode=elf");
668 case OS_SUPPORT_MACHO:
669 set_be_option("ia32-gasmode=macho");
670 set_be_option("ia32-stackalign=4");
671 set_be_option("pic");
676 int main(int argc, char **argv)
680 const char *dumpfunction = NULL;
681 const char *print_file_name_file = NULL;
682 compile_mode_t mode = CompileAssembleLink;
684 int result = EXIT_SUCCESS;
685 char cpu_arch[16] = "ia32";
686 file_list_entry_t *files = NULL;
687 file_list_entry_t *last_file = NULL;
688 bool construct_dep_target = false;
689 bool do_timing = false;
690 struct obstack file_obst;
692 atexit(free_temp_files);
694 /* hack for now... */
695 if (strstr(argv[0], "pptest") != NULL) {
696 extern int pptest_main(int argc, char **argv);
697 return pptest_main(argc, argv);
700 obstack_init(&cppflags_obst);
701 obstack_init(&ldflags_obst);
702 obstack_init(&file_obst);
704 #define GET_ARG_AFTER(def, args) \
705 def = &arg[sizeof(args)-1]; \
706 if (def[0] == '\0') { \
709 fprintf(stderr, "error: expected argument after '" args "'\n"); \
710 argument_errors = true; \
714 if (def[0] == '-' && def[1] != '\0') { \
715 fprintf(stderr, "error: expected argument after '" args "'\n"); \
716 argument_errors = true; \
721 #define SINGLE_OPTION(ch) (option[0] == (ch) && option[1] == '\0')
723 /* early options parsing (find out optimisation level and OS) */
724 for (int i = 1; i < argc; ++i) {
725 const char *arg = argv[i];
729 const char *option = &arg[1];
730 if (option[0] == 'O') {
731 sscanf(&option[1], "%d", &opt_level);
733 if (strcmp(arg, "-fwin32") == 0) {
734 firm_opt.os_support = OS_SUPPORT_MINGW;
735 } else if (strcmp(arg, "-fmac") == 0) {
736 firm_opt.os_support = OS_SUPPORT_MACHO;
737 } else if (strcmp(arg, "-flinux") == 0) {
738 firm_opt.os_support = OS_SUPPORT_LINUX;
742 /* set target/os specific stuff */
745 /* apply optimisation level */
748 set_option("no-opt");
751 set_option("no-inline");
755 /* use_builtins = true; */
758 set_option("thread-jumps");
759 set_option("if-conv");
762 set_option("strict-aliasing");
763 set_option("inline");
764 set_option("deconv");
765 set_be_option("omitfp");
769 /* parse rest of options */
770 standard = STANDARD_DEFAULT;
771 unsigned features_on = 0;
772 unsigned features_off = 0;
773 filetype_t forced_filetype = FILETYPE_AUTODETECT;
774 bool help_displayed = false;
775 bool argument_errors = false;
776 for (int i = 1; i < argc; ++i) {
777 const char *arg = argv[i];
778 if (arg[0] == '-' && arg[1] != '\0') {
780 const char *option = &arg[1];
781 if (option[0] == 'o') {
782 GET_ARG_AFTER(outname, "-o");
783 } else if (option[0] == 'g') {
784 set_be_option("debuginfo=stabs");
785 set_be_option("omitfp=no");
786 set_be_option("ia32-nooptcc=yes");
787 } else if (SINGLE_OPTION('c')) {
788 mode = CompileAssemble;
789 } else if (SINGLE_OPTION('E')) {
790 mode = PreprocessOnly;
791 } else if (SINGLE_OPTION('S')) {
793 } else if (option[0] == 'O') {
795 } else if (option[0] == 'I') {
797 GET_ARG_AFTER(opt, "-I");
798 add_flag(&cppflags_obst, "-I%s", opt);
799 } else if (option[0] == 'D') {
801 GET_ARG_AFTER(opt, "-D");
802 add_flag(&cppflags_obst, "-D%s", opt);
803 } else if (option[0] == 'U') {
805 GET_ARG_AFTER(opt, "-U");
806 add_flag(&cppflags_obst, "-U%s", opt);
807 } else if (option[0] == 'l') {
809 GET_ARG_AFTER(opt, "-l");
810 add_flag(&ldflags_obst, "-l%s", opt);
811 } else if (option[0] == 'L') {
813 GET_ARG_AFTER(opt, "-L");
814 add_flag(&ldflags_obst, "-L%s", opt);
815 } else if (SINGLE_OPTION('v')) {
817 } else if (SINGLE_OPTION('w')) {
818 memset(&warning, 0, sizeof(warning));
819 } else if (option[0] == 'x') {
821 GET_ARG_AFTER(opt, "-x");
822 forced_filetype = get_filetype_from_string(opt);
823 if (forced_filetype == FILETYPE_UNKNOWN) {
824 fprintf(stderr, "Unknown language '%s'\n", opt);
825 argument_errors = true;
827 } else if (streq(option, "M")) {
828 mode = PreprocessOnly;
829 add_flag(&cppflags_obst, "-M");
830 } else if (streq(option, "MMD") ||
831 streq(option, "MD")) {
832 construct_dep_target = true;
833 add_flag(&cppflags_obst, "-%s", option);
834 } else if (streq(option, "MM") ||
835 streq(option, "MP")) {
836 add_flag(&cppflags_obst, "-%s", option);
837 } else if (streq(option, "MT") ||
838 streq(option, "MQ") ||
839 streq(option, "MF")) {
841 GET_ARG_AFTER(opt, "-MT");
842 add_flag(&cppflags_obst, "-%s", option);
843 add_flag(&cppflags_obst, "%s", opt);
844 } else if (streq(option, "include")) {
846 GET_ARG_AFTER(opt, "-include");
847 add_flag(&cppflags_obst, "-include");
848 add_flag(&cppflags_obst, "%s", opt);
849 } else if (streq(option, "isystem")) {
851 GET_ARG_AFTER(opt, "-isystem");
852 add_flag(&cppflags_obst, "-isystem");
853 add_flag(&cppflags_obst, "%s", opt);
854 } else if (streq(option, "nostdinc")
855 || streq(option, "trigraphs")) {
856 /* pass these through to the preprocessor */
857 add_flag(&cppflags_obst, "%s", arg);
858 } else if (streq(option, "pipe")) {
859 /* here for gcc compatibility */
860 } else if (option[0] == 'f') {
861 char const *orig_opt;
862 GET_ARG_AFTER(orig_opt, "-f");
864 if (strstart(orig_opt, "align-loops=") ||
865 strstart(orig_opt, "align-jumps=") ||
866 strstart(orig_opt, "align-functions=")) {
867 fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
868 } else if (strstart(orig_opt, "input-charset=")) {
869 char const* const encoding = strchr(orig_opt, '=') + 1;
870 select_input_encoding(encoding);
871 } else if (streq(orig_opt, "verbose-asm")) {
872 /* ignore: we always print verbose assembler */
874 char const *opt = orig_opt;
875 bool truth_value = true;
876 if (opt[0] == 'n' && opt[1] == 'o' && opt[2] == '-') {
881 if (streq(opt, "builtins")) {
882 use_builtins = truth_value;
883 } else if (streq(opt, "dollars-in-identifiers")) {
884 allow_dollar_in_symbol = truth_value;
885 } else if (streq(opt, "omit-frame-pointer")) {
886 set_be_option(truth_value ? "omitfp" : "omitfp=no");
887 } else if (streq(opt, "short-wchar")) {
888 wchar_atomic_kind = truth_value ? ATOMIC_TYPE_USHORT
890 } else if (streq(opt, "signed-char")) {
891 char_is_signed = truth_value;
892 } else if (streq(opt, "strength-reduce")) {
893 firm_option(truth_value ? "strength-red" : "no-strength-red");
894 } else if (streq(opt, "syntax-only")) {
895 mode = truth_value ? ParseOnly : CompileAssembleLink;
896 } else if (streq(opt, "unsigned-char")) {
897 char_is_signed = !truth_value;
898 } else if (streq(opt, "fast-math") ||
899 streq(opt, "jump-tables") ||
900 streq(opt, "unroll-loops") ||
901 streq(opt, "expensive-optimizations") ||
902 streq(opt, "common") ||
904 streq(opt, "align-loops") ||
905 streq(opt, "align-jumps") ||
906 streq(opt, "align-functions")) {
907 fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
909 int res = firm_option(orig_opt);
911 fprintf(stderr, "error: unknown Firm option '-f%s'\n",
913 argument_errors = true;
915 } else if (res == -1) {
916 help_displayed = true;
920 } else if (option[0] == 'b') {
922 GET_ARG_AFTER(opt, "-b");
923 int res = firm_be_option(opt);
925 fprintf(stderr, "error: unknown Firm backend option '-b %s'\n",
927 argument_errors = true;
928 } else if (res == -1) {
929 help_displayed = true;
930 } else if (strstart(opt, "isa=")) {
931 strncpy(cpu_arch, opt, sizeof(cpu_arch));
933 } else if (option[0] == 'W') {
934 if (strstart(option + 1, "p,")) {
935 // pass options directly to the preprocessor
937 GET_ARG_AFTER(opt, "-Wp,");
938 add_flag(&cppflags_obst, "-Wp,%s", opt);
939 } else if (strstart(option + 1, "l,")) {
940 // pass options directly to the linker
942 GET_ARG_AFTER(opt, "-Wl,");
943 add_flag(&ldflags_obst, "-Wl,%s", opt);
944 } else if (streq(option + 1, "no-trigraphs")
945 || streq(option + 1, "undef")) {
946 add_flag(&cppflags_obst, "%s", arg);
948 set_warning_opt(&option[1]);
950 } else if (option[0] == 'm') {
955 GET_ARG_AFTER(opt, "-m");
956 if (strstart(opt, "arch=")) {
957 GET_ARG_AFTER(opt, "-march=");
958 snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
959 int res = firm_be_option(arch_opt);
961 fprintf(stderr, "Unknown architecture '%s'\n", arch_opt);
962 argument_errors = true;
964 snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
965 int res = firm_be_option(arch_opt);
967 argument_errors = true;
969 } else if (strstart(opt, "tune=")) {
970 GET_ARG_AFTER(opt, "-mtune=");
971 snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
972 int res = firm_be_option(arch_opt);
974 argument_errors = true;
975 } else if (strstart(opt, "cpu=")) {
976 GET_ARG_AFTER(opt, "-mcpu=");
977 snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
978 int res = firm_be_option(arch_opt);
980 argument_errors = true;
981 } else if (strstart(opt, "fpmath=")) {
982 GET_ARG_AFTER(opt, "-mfpmath=");
983 if (streq(opt, "387"))
985 else if (streq(opt, "sse"))
988 fprintf(stderr, "error: option -mfpumath supports only 387 or sse\n");
989 argument_errors = true;
991 if (!argument_errors) {
992 snprintf(arch_opt, sizeof(arch_opt), "%s-fpunit=%s", cpu_arch, opt);
993 int res = firm_be_option(arch_opt);
995 argument_errors = true;
997 } else if (strstart(opt, "preferred-stack-boundary=")) {
998 GET_ARG_AFTER(opt, "-mpreferred-stack-boundary=");
999 snprintf(arch_opt, sizeof(arch_opt), "%s-stackalign=%s", cpu_arch, opt);
1000 int res = firm_be_option(arch_opt);
1002 argument_errors = true;
1003 } else if (streq(opt, "omit-leaf-frame-pointer")) {
1004 set_be_option("omitleaffp=1");
1005 } else if (streq(opt, "no-omit-leaf-frame-pointer")) {
1006 set_be_option("omitleaffp=0");
1007 } else if (streq(opt, "rtd")) {
1008 default_calling_convention = CC_STDCALL;
1011 long int value = strtol(opt, &endptr, 10);
1012 if (*endptr != '\0') {
1013 fprintf(stderr, "error: wrong option '-m %s'\n", opt);
1014 argument_errors = true;
1016 if (value != 16 && value != 32 && value != 64) {
1017 fprintf(stderr, "error: option -m supports only 16, 32 or 64\n");
1018 argument_errors = true;
1020 machine_size = (unsigned int)value;
1023 } else if (streq(option, "pg")) {
1024 set_be_option("gprof");
1025 add_flag(&ldflags_obst, "-pg");
1026 } else if (streq(option, "pedantic") ||
1027 streq(option, "ansi")) {
1028 fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg);
1029 } else if (streq(option, "shared")) {
1030 add_flag(&ldflags_obst, "-shared");
1031 } else if (strstart(option, "std=")) {
1032 const char *const o = &option[4];
1034 streq(o, "c++") ? STANDARD_CXX98 :
1035 streq(o, "c++98") ? STANDARD_CXX98 :
1036 streq(o, "c89") ? STANDARD_C89 :
1037 streq(o, "c99") ? STANDARD_C99 :
1038 streq(o, "c9x") ? STANDARD_C99 : // deprecated
1039 streq(o, "gnu++98") ? STANDARD_GNUXX98 :
1040 streq(o, "gnu89") ? STANDARD_GNU89 :
1041 streq(o, "gnu99") ? STANDARD_GNU99 :
1042 streq(o, "gnu9x") ? STANDARD_GNU99 : // deprecated
1043 streq(o, "iso9899:1990") ? STANDARD_C89 :
1044 streq(o, "iso9899:199409") ? STANDARD_C90 :
1045 streq(o, "iso9899:1999") ? STANDARD_C99 :
1046 streq(o, "iso9899:199x") ? STANDARD_C99 : // deprecated
1047 (fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg), standard);
1048 } else if (streq(option, "version")) {
1049 print_cparser_version();
1050 } else if (strstart(option, "print-file-name=")) {
1051 GET_ARG_AFTER(print_file_name_file, "-print-file-name=");
1052 } else if (option[0] == '-') {
1053 /* double dash option */
1055 if (streq(option, "gcc")) {
1056 features_on |= _GNUC;
1057 features_off &= ~_GNUC;
1058 } else if (streq(option, "no-gcc")) {
1059 features_on &= ~_GNUC;
1060 features_off |= _GNUC;
1061 } else if (streq(option, "ms")) {
1063 features_off &= ~_MS;
1064 } else if (streq(option, "no-ms")) {
1065 features_on &= ~_MS;
1066 features_off |= _MS;
1067 } else if (streq(option, "strict")) {
1069 } else if (streq(option, "lextest")) {
1071 } else if (streq(option, "benchmark")) {
1072 mode = BenchmarkParser;
1073 } else if (streq(option, "print-ast")) {
1075 } else if (streq(option, "print-implicit-cast")) {
1076 print_implicit_casts = true;
1077 } else if (streq(option, "print-parenthesis")) {
1078 print_parenthesis = true;
1079 } else if (streq(option, "print-fluffy")) {
1081 } else if (streq(option, "print-caml")) {
1083 } else if (streq(option, "print-jna")) {
1085 } else if (streq(option, "time")) {
1087 } else if (streq(option, "version")) {
1088 print_cparser_version();
1090 } else if (streq(option, "dump-function")) {
1093 fprintf(stderr, "error: "
1094 "expected argument after '--dump-function'\n");
1095 argument_errors = true;
1098 dumpfunction = argv[i];
1100 } else if (streq(option, "export-ir")) {
1101 mode = CompileExportIR;
1103 fprintf(stderr, "error: unknown argument '%s'\n", arg);
1104 argument_errors = true;
1107 fprintf(stderr, "error: unknown argument '%s'\n", arg);
1108 argument_errors = true;
1111 filetype_t type = forced_filetype;
1112 if (type == FILETYPE_AUTODETECT) {
1113 if (streq(arg, "-")) {
1114 /* - implicitly means C source file */
1117 const char *suffix = strrchr(arg, '.');
1118 /* Ensure there is at least one char before the suffix */
1119 if (suffix != NULL && suffix != arg) {
1122 streq(suffix, "S") ? FILETYPE_ASSEMBLER :
1123 streq(suffix, "a") ? FILETYPE_OBJECT :
1124 streq(suffix, "c") ? FILETYPE_C :
1125 streq(suffix, "cc") ? FILETYPE_CXX :
1126 streq(suffix, "cpp") ? FILETYPE_CXX :
1127 streq(suffix, "cxx") ? FILETYPE_CXX :
1128 streq(suffix, "h") ? FILETYPE_C :
1129 streq(suffix, "ir") ? FILETYPE_IR :
1130 streq(suffix, "o") ? FILETYPE_OBJECT :
1131 streq(suffix, "s") ? FILETYPE_PREPROCESSED_ASSEMBLER :
1132 streq(suffix, "so") ? FILETYPE_OBJECT :
1133 FILETYPE_AUTODETECT;
1137 if (type == FILETYPE_AUTODETECT) {
1138 fprintf(stderr, "'%s': file format not recognized\n", arg);
1143 file_list_entry_t *entry
1144 = obstack_alloc(&file_obst, sizeof(entry[0]));
1145 memset(entry, 0, sizeof(entry[0]));
1149 if (last_file != NULL) {
1150 last_file->next = entry;
1158 if (print_file_name_file != NULL) {
1159 print_file_name(print_file_name_file);
1163 if (files == NULL) {
1164 fprintf(stderr, "error: no input files specified\n");
1165 argument_errors = true;
1168 if (help_displayed) {
1169 return !argument_errors;
1171 if (argument_errors) {
1176 /* we do the lowering in ast2firm */
1177 firm_opt.lower_bitfields = FALSE;
1179 /* set the c_mode here, types depends on it */
1180 c_mode |= features_on;
1181 c_mode &= ~features_off;
1184 init_symbol_table();
1197 if (construct_dep_target) {
1198 if (outname != 0 && strlen(outname) >= 2) {
1199 get_output_name(dep_target, sizeof(dep_target), outname, ".d");
1201 get_output_name(dep_target, sizeof(dep_target), files->name, ".d");
1204 dep_target[0] = '\0';
1207 char outnamebuf[4096];
1208 if (outname == NULL) {
1209 const char *filename = files->name;
1212 case BenchmarkParser:
1218 case PreprocessOnly:
1223 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".s");
1224 outname = outnamebuf;
1226 case CompileAssemble:
1227 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".o");
1228 outname = outnamebuf;
1231 get_output_name(outnamebuf, sizeof(outnamebuf), dumpfunction,
1233 outname = outnamebuf;
1235 case CompileExportIR:
1236 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".ir");
1237 outname = outnamebuf;
1239 case CompileAssembleLink:
1249 assert(outname != NULL);
1252 if (streq(outname, "-")) {
1255 out = fopen(outname, "w");
1257 fprintf(stderr, "Couldn't open '%s' for writing: %s\n", outname,
1263 file_list_entry_t *file;
1264 for (file = files; file != NULL; file = file->next) {
1265 char asm_tempfile[1024];
1266 const char *filename = file->name;
1267 filetype_t filetype = file->type;
1269 if (filetype == FILETYPE_OBJECT)
1273 if (mode == LexTest) {
1275 in = open_file(filename);
1276 lextest(in, filename);
1281 FILE *preprocessed_in = NULL;
1282 filetype_t next_filetype = filetype;
1285 next_filetype = FILETYPE_PREPROCESSED_C;
1288 next_filetype = FILETYPE_PREPROCESSED_CXX;
1290 case FILETYPE_ASSEMBLER:
1291 next_filetype = FILETYPE_PREPROCESSED_ASSEMBLER;
1294 /* no support for input on FILE* yet */
1296 panic("internal compiler error: in for preprocessor != NULL");
1298 preprocessed_in = preprocess(filename, filetype);
1299 if (mode == PreprocessOnly) {
1300 copy_file(out, preprocessed_in);
1301 int result = pclose(preprocessed_in);
1303 /* remove output file in case of error */
1304 if (out != stdout && result != EXIT_SUCCESS) {
1310 in = preprocessed_in;
1311 filetype = next_filetype;
1319 if (mode == Compile) {
1322 asm_out = make_temp_file(asm_tempfile, sizeof(asm_tempfile), "ccs");
1326 in = open_file(filename);
1328 /* preprocess and compile */
1329 if (filetype == FILETYPE_PREPROCESSED_C) {
1330 char const* invalid_mode;
1333 case STANDARD_C89: c_mode = _C89; break;
1334 /* TODO determine difference between these two */
1335 case STANDARD_C90: c_mode = _C89; break;
1336 case STANDARD_C99: c_mode = _C89 | _C99; break;
1337 case STANDARD_GNU89: c_mode = _C89 | _GNUC; break;
1341 "warning: command line option \"-std=%s\" is not valid for C\n",
1344 case STANDARD_DEFAULT:
1345 case STANDARD_GNU99: c_mode = _C89 | _C99 | _GNUC; break;
1347 case STANDARD_CXX98: invalid_mode = "c++98"; goto default_c_warn;
1348 case STANDARD_GNUXX98: invalid_mode = "gnu98"; goto default_c_warn;
1351 } else if (filetype == FILETYPE_PREPROCESSED_CXX) {
1352 char const* invalid_mode;
1354 case STANDARD_C89: invalid_mode = "c89"; goto default_cxx_warn;
1355 case STANDARD_C90: invalid_mode = "c90"; goto default_cxx_warn;
1356 case STANDARD_C99: invalid_mode = "c99"; goto default_cxx_warn;
1357 case STANDARD_GNU89: invalid_mode = "gnu89"; goto default_cxx_warn;
1358 case STANDARD_GNU99: invalid_mode = "gnu99"; goto default_cxx_warn;
1361 case STANDARD_CXX98: c_mode = _CXX; break;
1365 "warning: command line option \"-std=%s\" is not valid for C++\n",
1367 case STANDARD_DEFAULT:
1368 case STANDARD_GNUXX98: c_mode = _CXX | _GNUC; break;
1372 c_mode |= features_on;
1373 c_mode &= ~features_off;
1375 timer_push(TV_PARSING);
1377 translation_unit_t *const unit = do_parsing(in, filename);
1380 /* prints the AST even if errors occurred */
1381 if (mode == PrintAst) {
1382 type_set_output(out);
1383 ast_set_output(out);
1387 if (error_count > 0) {
1388 /* parsing failed because of errors */
1389 fprintf(stderr, "%u error(s), %u warning(s)\n", error_count,
1391 result = EXIT_FAILURE;
1393 } else if (warning_count > 0) {
1394 fprintf(stderr, "%u warning(s)\n", warning_count);
1397 if (in == preprocessed_in) {
1398 int pp_result = pclose(preprocessed_in);
1399 if (pp_result != EXIT_SUCCESS) {
1400 /* remove output file */
1407 if (mode == BenchmarkParser) {
1409 } else if (mode == PrintFluffy) {
1410 write_fluffy_decls(out, unit);
1412 } else if (mode == PrintCaml) {
1413 write_caml_decls(out, unit);
1415 } else if (mode == PrintJna) {
1416 write_jna_decls(out, unit);
1420 timer_push(TV_CONSTRUCT);
1421 translation_unit_to_firm(unit);
1425 if (mode == ParseOnly) {
1429 if (mode == CompileDump) {
1431 ident *id = new_id_from_str(dumpfunction);
1432 ir_graph *irg = NULL;
1433 int n_irgs = get_irp_n_irgs();
1434 for (int i = 0; i < n_irgs; ++i) {
1435 ir_graph *tirg = get_irp_irg(i);
1436 ident *irg_id = get_entity_ident(get_irg_entity(tirg));
1444 fprintf(stderr, "No graph for function '%s' found\n",
1449 dump_ir_block_graph_file(irg, out);
1454 if (mode == CompileExportIR) {
1460 gen_firm_finish(asm_out, filename, /*c_mode=*/1,
1461 have_const_functions);
1462 if (asm_out != out) {
1465 } else if (filetype == FILETYPE_IR) {
1467 ir_import(filename);
1469 } else if (filetype == FILETYPE_PREPROCESSED_ASSEMBLER) {
1470 copy_file(asm_out, in);
1471 if (in == preprocessed_in) {
1472 int pp_result = pclose(preprocessed_in);
1473 if (pp_result != EXIT_SUCCESS) {
1474 /* remove output in error case */
1480 if (asm_out != out) {
1485 if (mode == Compile)
1488 /* if we're here then we have preprocessed assembly */
1489 filename = asm_tempfile;
1490 filetype = FILETYPE_PREPROCESSED_ASSEMBLER;
1493 if (filetype == FILETYPE_PREPROCESSED_ASSEMBLER) {
1495 const char *filename_o;
1496 if (mode == CompileAssemble) {
1498 filename_o = outname;
1500 FILE *tempf = make_temp_file(temp, sizeof(temp), "cco");
1505 assemble(filename_o, filename);
1507 size_t len = strlen(filename_o) + 1;
1508 filename = obstack_copy(&file_obst, filename_o, len);
1509 filetype = FILETYPE_OBJECT;
1512 /* ok we're done here, process next file */
1513 file->name = filename;
1514 file->type = filetype;
1517 if (result != EXIT_SUCCESS) {
1523 /* link program file */
1524 if (mode == CompileAssembleLink) {
1525 obstack_1grow(&ldflags_obst, '\0');
1526 const char *flags = obstack_finish(&ldflags_obst);
1528 /* construct commandline */
1529 obstack_printf(&file_obst, "%s", LINKER);
1530 for (file_list_entry_t *entry = files; entry != NULL;
1531 entry = entry->next) {
1532 if (entry->type != FILETYPE_OBJECT)
1535 add_flag(&file_obst, "%s", entry->name);
1538 add_flag(&file_obst, "-o");
1539 add_flag(&file_obst, outname);
1540 obstack_printf(&file_obst, "%s", flags);
1541 obstack_1grow(&file_obst, '\0');
1543 char *commandline = obstack_finish(&file_obst);
1548 int err = system(commandline);
1549 if (err != EXIT_SUCCESS) {
1550 fprintf(stderr, "linker reported an error\n");
1558 obstack_free(&cppflags_obst, NULL);
1559 obstack_free(&ldflags_obst, NULL);
1560 obstack_free(&file_obst, NULL);
1570 exit_symbol_table();