2 * This file is part of cparser.
3 * Copyright (C) 2007-2008 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 "adt/error.h"
75 #include "wrappergen/write_fluffy.h"
76 #include "wrappergen/write_caml.h"
77 #include "wrappergen/write_jna.h"
84 #define PREPROCESSOR "gcc -E -std=c99 -m32 -U__STRICT_ANSI__"
86 #define PREPROCESSOR "cpp -std=c99 -m32 -U__STRICT_ANSI__"
91 #define LINKER "gcc -m32"
96 #define ASSEMBLER "gcc -c -xassembler"
98 #define ASSEMBLER "as --32"
102 /** The current c mode/dialect. */
103 unsigned int c_mode = _C89 | _ANSI | _C99 | _GNUC;
105 /** The 'machine size', 16, 32 or 64 bit, 32bit is the default. */
106 unsigned int machine_size = 32;
108 /** true if the char type is signed. */
109 bool char_is_signed = true;
111 /** true for strict language checking. */
112 bool strict_mode = false;
114 /** use builtins for some libc functions */
115 bool use_builtins = false;
117 /** we have extern function with const attribute. */
118 bool have_const_functions = false;
120 atomic_type_kind_t wchar_atomic_kind = ATOMIC_TYPE_INT;
122 /* to switch on printing of implicit casts */
123 extern bool print_implicit_casts;
125 /* to switch on printing of parenthesis to indicate operator precedence */
126 extern bool print_parenthesis;
129 static struct obstack cppflags_obst, ldflags_obst;
130 static char dep_target[1024];
131 static const char *outname;
133 typedef struct file_list_entry_t file_list_entry_t;
135 typedef enum filetype_t {
138 FILETYPE_PREPROCESSED_C,
140 FILETYPE_PREPROCESSED_CXX,
142 FILETYPE_PREPROCESSED_ASSEMBLER,
147 struct file_list_entry_t {
148 const char *name; /**< filename or NULL for stdin */
150 file_list_entry_t *next;
153 static file_list_entry_t *temp_files;
155 #if defined(_DEBUG) || defined(FIRM_DEBUG)
157 * Debug printf implementation.
159 * @param fmt printf style format parameter
161 void dbg_printf(const char *fmt, ...)
165 if (firm_dump.debug_print) {
171 #endif /* defined(_DEBUG) || defined(FIRM_DEBUG) */
173 static void initialize_firm(void)
177 dump_consts_local(1);
178 dump_keepalive_edges(1);
181 static void get_output_name(char *buf, size_t buflen, const char *inputname,
184 size_t last_dot = 0xffffffff;
187 if (inputname == NULL) {
188 snprintf(buf, buflen, "a%s", newext);
192 for (const char *c = inputname; *c != 0; ++c) {
197 if (last_dot == 0xffffffff)
200 if (last_dot >= buflen)
201 panic("filename too long");
202 memcpy(buf, inputname, last_dot);
204 size_t extlen = strlen(newext) + 1;
205 if (extlen + last_dot >= buflen)
206 panic("filename too long");
207 memcpy(buf+last_dot, newext, extlen);
210 #include "builtins.h"
212 static translation_unit_t *do_parsing(FILE *const in, const char *const input_name)
217 lexer_open_buffer(builtins, sizeof(builtins)-1, "<builtin>");
221 lexer_open_stream(in, input_name);
224 translation_unit_t *unit = finish_parsing();
228 static void lextest(FILE *in, const char *fname)
230 lexer_open_stream(in, fname);
233 lexer_next_preprocessing_token();
234 print_token(stdout, &lexer_token);
236 } while (lexer_token.type != T_EOF);
239 static void add_flag(struct obstack *obst, const char *format, ...)
244 va_start(ap, format);
248 vsnprintf(buf, sizeof(buf), format, ap);
251 obstack_1grow(obst, ' ');
253 obstack_1grow(obst, '"');
254 obstack_grow(obst, buf, len);
255 obstack_1grow(obst, '"');
257 /* escape stuff... */
258 for (char *c = buf; *c != '\0'; ++c) {
276 obstack_1grow(obst, '\\');
279 obstack_1grow(obst, *c);
286 static const char *type_to_string(type_t *type)
288 assert(type->kind == TYPE_ATOMIC);
289 return get_atomic_kind_name(type->atomic.akind);
292 static FILE *preprocess(const char *fname)
294 obstack_1grow(&cppflags_obst, '\0');
295 const char *flags = obstack_finish(&cppflags_obst);
297 obstack_printf(&cppflags_obst, "%s", PREPROCESSOR);
299 /* setup default defines */
300 add_flag(&cppflags_obst, "-U__WCHAR_TYPE__");
301 add_flag(&cppflags_obst, "-D__WCHAR_TYPE__=%s", type_to_string(type_wchar_t));
302 add_flag(&cppflags_obst, "-U__SIZE_TYPE__");
303 add_flag(&cppflags_obst, "-D__SIZE_TYPE__=%s", type_to_string(type_size_t));
306 add_flag(&cppflags_obst, "-D__builtin_abort=abort");
307 add_flag(&cppflags_obst, "-D__builtin_abs=abs");
308 add_flag(&cppflags_obst, "-D__builtin_exit=exit");
309 add_flag(&cppflags_obst, "-D__builtin_malloc=malloc");
310 add_flag(&cppflags_obst, "-D__builtin_memcmp=memcmp");
311 add_flag(&cppflags_obst, "-D__builtin_memcpy=memcpy");
312 add_flag(&cppflags_obst, "-D__builtin_memset=memset");
313 add_flag(&cppflags_obst, "-D__builtin_strlen=strlen");
314 add_flag(&cppflags_obst, "-D__builtin_strcmp=strcmp");
315 add_flag(&cppflags_obst, "-D__builtin_strcpy=strcpy");
317 /* handle dependency generation */
318 if (dep_target[0] != '\0') {
319 add_flag(&cppflags_obst, "-MF");
320 add_flag(&cppflags_obst, dep_target);
321 if (outname != NULL) {
322 add_flag(&cppflags_obst, "-MQ");
323 add_flag(&cppflags_obst, outname);
326 if (flags[0] != '\0') {
327 obstack_printf(&cppflags_obst, " %s", flags);
329 add_flag(&cppflags_obst, fname);
331 obstack_1grow(&cppflags_obst, '\0');
332 const char *buf = obstack_finish(&cppflags_obst);
337 FILE *f = popen(buf, "r");
339 fprintf(stderr, "invoking preprocessor failed\n");
346 static void assemble(const char *out, const char *in)
350 snprintf(buf, sizeof(buf), "%s %s -o %s", ASSEMBLER, in, out);
355 int err = system(buf);
357 fprintf(stderr, "assembler reported an error\n");
362 static void print_file_name(const char *file)
364 add_flag(&ldflags_obst, "-print-file-name=%s", file);
366 obstack_1grow(&ldflags_obst, '\0');
367 const char *flags = obstack_finish(&ldflags_obst);
369 /* construct commandline */
370 obstack_printf(&ldflags_obst, "%s ", LINKER);
371 obstack_printf(&ldflags_obst, "%s", flags);
372 obstack_1grow(&ldflags_obst, '\0');
374 char *commandline = obstack_finish(&ldflags_obst);
379 int err = system(commandline);
380 if (err != EXIT_SUCCESS) {
381 fprintf(stderr, "linker reported an error\n");
386 static const char *try_dir(const char *dir)
390 if (access(dir, R_OK | W_OK | X_OK) == 0)
395 static const char *get_tempdir(void)
397 static const char *tmpdir = NULL;
403 tmpdir = try_dir(getenv("TMPDIR"));
405 tmpdir = try_dir(getenv("TMP"));
407 tmpdir = try_dir(getenv("TEMP"));
411 tmpdir = try_dir(P_tmpdir);
415 tmpdir = try_dir("/var/tmp");
417 tmpdir = try_dir("/usr/tmp");
419 tmpdir = try_dir("/tmp");
428 /* cheap and nasty mkstemp replacement */
429 static int mkstemp(char *templ)
432 return open(templ, O_RDWR|O_CREAT|O_EXCL|O_BINARY, 0600);
437 * an own version of tmpnam, which: writes in a buffer, emits no warnings
438 * during linking (like glibc/gnu ld do for tmpnam)...
440 static FILE *make_temp_file(char *buffer, size_t buflen, const char *prefix)
442 const char *tempdir = get_tempdir();
444 snprintf(buffer, buflen, "%s/%sXXXXXX", tempdir, prefix);
446 int fd = mkstemp(buffer);
448 fprintf(stderr, "couldn't create temporary file: %s\n",
452 FILE *out = fdopen(fd, "w");
454 fprintf(stderr, "couldn't create temporary file FILE*\n");
458 file_list_entry_t *entry = xmalloc(sizeof(*entry));
459 memset(entry, 0, sizeof(*entry));
461 size_t name_len = strlen(buffer) + 1;
462 char *name = malloc(name_len);
463 memcpy(name, buffer, name_len);
466 entry->next = temp_files;
472 static void free_temp_files(void)
474 file_list_entry_t *entry = temp_files;
475 file_list_entry_t *next;
476 for ( ; entry != NULL; entry = next) {
480 free((char*) entry->name);
487 * Do the necessary lowering for compound parameters.
489 void lower_compound_params(void)
491 lower_params_t params;
493 params.def_ptr_alignment = 4;
494 params.flags = LF_COMPOUND_RETURN | LF_RETURN_HIDDEN;
495 params.hidden_params = ADD_HIDDEN_ALWAYS_IN_FRONT;
496 params.find_pointer_type = NULL;
497 params.ret_compound_in_regs = NULL;
498 lower_calls_with_compounds(¶ms);
501 typedef enum compile_mode_t {
516 static void usage(const char *argv0)
518 fprintf(stderr, "Usage %s input [-o output] [-c]\n", argv0);
521 static void print_cparser_version(void) {
522 printf("cparser (%s) using libFirm (%u.%u",
523 cparser_REVISION, ir_get_version_major(),
524 ir_get_version_minor());
526 const char *revision = ir_get_version_revision();
527 if (revision[0] != 0) {
529 fputs(revision, stdout);
532 const char *build = ir_get_version_build();
535 fputs(build, stdout);
540 static void set_be_option(const char *arg)
542 int res = firm_be_option(arg);
547 static void set_option(const char *arg)
549 int res = firm_option(arg);
554 static void copy_file(FILE *dest, FILE *input)
558 while (!feof(input) && !ferror(dest)) {
559 size_t read = fread(buf, 1, sizeof(buf), input);
560 if (fwrite(buf, 1, read, dest) != read) {
561 perror("couldn't write output");
566 static inline bool streq(char const* a, char const* b)
568 return strcmp(a, b) == 0;
571 static inline bool strstart(char const* str, char const* start)
576 } while (*str++ == *start++);
580 static FILE *open_file(const char *filename)
582 if (streq(filename, "-")) {
586 FILE *in = fopen(filename, "r");
588 fprintf(stderr, "Couldn't open '%s': %s\n", filename,
596 static filetype_t get_filetype_from_string(const char *string)
598 if (streq(string, "c") || streq(string, "c-header"))
600 if (streq(string, "c++") || streq(string, "c++-header"))
602 if (streq(string, "assembler"))
603 return FILETYPE_PREPROCESSED_ASSEMBLER;
604 if (streq(string, "assembler-with-cpp"))
605 return FILETYPE_ASSEMBLER;
606 if (streq(string, "none"))
607 return FILETYPE_AUTODETECT;
609 return FILETYPE_UNKNOWN;
612 static void init_os_support(void)
614 /* OS option must be set to the backend */
615 switch (firm_opt.os_support) {
616 case OS_SUPPORT_MINGW:
617 set_be_option("ia32-gasmode=mingw");
618 wchar_atomic_kind = ATOMIC_TYPE_USHORT;
620 case OS_SUPPORT_LINUX:
621 set_be_option("ia32-gasmode=elf");
623 case OS_SUPPORT_MACHO:
624 set_be_option("ia32-gasmode=macho");
625 set_be_option("ia32-stackalign=4");
626 set_be_option("pic");
631 typedef enum lang_standard_t {
632 STANDARD_DEFAULT, /* gnu99 (for C, GCC does gnu89) or gnu++98 (for C++) */
633 STANDARD_ANSI, /* c89 (for C) or c++98 (for C++) */
634 STANDARD_C89, /* ISO C90 (sic) */
635 STANDARD_C90, /* ISO C90 as modified in amendment 1 */
636 STANDARD_C99, /* ISO C99 */
637 STANDARD_GNU89, /* ISO C90 plus GNU extensions (including some C99) */
638 STANDARD_GNU99, /* ISO C99 plus GNU extensions */
639 STANDARD_CXX98, /* ISO C++ 1998 plus amendments */
640 STANDARD_GNUXX98 /* ISO C++ 1998 plus amendments and GNU extensions */
643 int main(int argc, char **argv)
647 const char *dumpfunction = NULL;
648 const char *print_file_name_file = NULL;
649 compile_mode_t mode = CompileAssembleLink;
651 int result = EXIT_SUCCESS;
652 char cpu_arch[16] = "ia32";
653 file_list_entry_t *files = NULL;
654 file_list_entry_t *last_file = NULL;
655 bool construct_dep_target = false;
656 struct obstack file_obst;
658 atexit(free_temp_files);
660 /* hack for now... */
661 if (strstr(argv[0], "pptest") != NULL) {
662 extern int pptest_main(int argc, char **argv);
663 return pptest_main(argc, argv);
666 obstack_init(&cppflags_obst);
667 obstack_init(&ldflags_obst);
668 obstack_init(&file_obst);
670 #define GET_ARG_AFTER(def, args) \
671 def = &arg[sizeof(args)-1]; \
672 if (def[0] == '\0') { \
675 fprintf(stderr, "error: expected argument after '" args "'\n"); \
676 argument_errors = true; \
680 if (def[0] == '-' && def[1] != '\0') { \
681 fprintf(stderr, "error: expected argument after '" args "'\n"); \
682 argument_errors = true; \
687 #define SINGLE_OPTION(ch) (option[0] == (ch) && option[1] == '\0')
689 /* early options parsing (find out optimisation level and OS) */
690 for (int i = 1; i < argc; ++i) {
691 const char *arg = argv[i];
695 const char *option = &arg[1];
696 if (option[0] == 'O') {
697 sscanf(&option[1], "%d", &opt_level);
699 if (strcmp(arg, "-fwin32") == 0) {
700 firm_opt.os_support = OS_SUPPORT_MINGW;
701 } else if (strcmp(arg, "-fmac") == 0) {
702 firm_opt.os_support = OS_SUPPORT_MACHO;
703 } else if (strcmp(arg, "-flinux") == 0) {
704 firm_opt.os_support = OS_SUPPORT_LINUX;
708 /* set target/os specific stuff */
711 /* apply optimisation level */
714 set_option("no-opt");
717 set_option("no-inline");
721 set_option("strict-aliasing");
722 /* use_builtins = true; */
725 set_option("cond-eval");
726 set_option("if-conv");
729 set_option("inline");
730 set_option("deconv");
731 set_be_option("omitfp");
735 /* parse rest of options */
736 lang_standard_t standard = STANDARD_DEFAULT;
737 unsigned features_on = 0;
738 unsigned features_off = 0;
739 filetype_t forced_filetype = FILETYPE_AUTODETECT;
740 bool help_displayed = false;
741 bool argument_errors = false;
742 for (int i = 1; i < argc; ++i) {
743 const char *arg = argv[i];
744 if (arg[0] == '-' && arg[1] != '\0') {
746 const char *option = &arg[1];
747 if (option[0] == 'o') {
748 GET_ARG_AFTER(outname, "-o");
749 } else if (option[0] == 'g') {
750 set_be_option("debuginfo=stabs");
751 set_be_option("omitfp=no");
752 set_be_option("ia32-nooptcc=yes");
753 } else if (SINGLE_OPTION('c')) {
754 mode = CompileAssemble;
755 } else if (SINGLE_OPTION('E')) {
756 mode = PreprocessOnly;
757 } else if (SINGLE_OPTION('S')) {
759 } else if (option[0] == 'O') {
761 } else if (option[0] == 'I') {
763 GET_ARG_AFTER(opt, "-I");
764 add_flag(&cppflags_obst, "-I%s", opt);
765 } else if (option[0] == 'D') {
767 GET_ARG_AFTER(opt, "-D");
768 add_flag(&cppflags_obst, "-D%s", opt);
769 } else if (option[0] == 'U') {
771 GET_ARG_AFTER(opt, "-U");
772 add_flag(&cppflags_obst, "-U%s", opt);
773 } else if (option[0] == 'l') {
775 GET_ARG_AFTER(opt, "-l");
776 add_flag(&ldflags_obst, "-l%s", opt);
777 } else if (option[0] == 'L') {
779 GET_ARG_AFTER(opt, "-L");
780 add_flag(&ldflags_obst, "-L%s", opt);
781 } else if (SINGLE_OPTION('v')) {
783 } else if (SINGLE_OPTION('w')) {
784 memset(&warning, 0, sizeof(warning));
785 } else if (option[0] == 'x') {
787 GET_ARG_AFTER(opt, "-x");
788 forced_filetype = get_filetype_from_string(opt);
789 if (forced_filetype == FILETYPE_UNKNOWN) {
790 fprintf(stderr, "Unknown language '%s'\n", opt);
791 argument_errors = true;
793 } else if (streq(option, "M")) {
794 mode = PreprocessOnly;
795 add_flag(&cppflags_obst, "-M");
796 } else if (streq(option, "MMD") ||
797 streq(option, "MD")) {
798 construct_dep_target = true;
799 add_flag(&cppflags_obst, "-%s", option);
800 } else if (streq(option, "MM") ||
801 streq(option, "MP")) {
802 add_flag(&cppflags_obst, "-%s", option);
803 } else if (streq(option, "MT") ||
804 streq(option, "MQ") ||
805 streq(option, "MF")) {
807 GET_ARG_AFTER(opt, "-MT");
808 add_flag(&cppflags_obst, "-%s", option);
809 add_flag(&cppflags_obst, "%s", opt);
810 } else if (streq(option, "include")) {
812 GET_ARG_AFTER(opt, "-include");
813 add_flag(&cppflags_obst, "-include");
814 add_flag(&cppflags_obst, "%s", opt);
815 } else if (streq(option, "isystem")) {
817 GET_ARG_AFTER(opt, "-isystem");
818 add_flag(&cppflags_obst, "-isystem");
819 add_flag(&cppflags_obst, "%s", opt);
820 } else if (streq(option, "nostdinc")
821 || streq(option, "trigraphs")) {
822 /* pass these through to the preprocessor */
823 add_flag(&cppflags_obst, "%s", arg);
824 } else if (streq(option, "pipe")) {
825 /* here for gcc compatibility */
826 } else if (option[0] == 'f') {
827 char const *orig_opt;
828 GET_ARG_AFTER(orig_opt, "-f");
830 if (strstart(orig_opt, "align-loops=") ||
831 strstart(orig_opt, "align-jumps=") ||
832 strstart(orig_opt, "align-functions=")) {
833 fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
834 } else if (strstart(orig_opt, "input-charset=")) {
835 char const* const encoding = strchr(orig_opt, '=') + 1;
836 select_input_encoding(encoding);
837 } else if (streq(orig_opt, "verbose-asm")) {
838 /* ignore: we always print verbose assembler */
840 char const *opt = orig_opt;
841 bool truth_value = true;
842 if (opt[0] == 'n' && opt[1] == 'o' && opt[2] == '-') {
847 if (streq(opt, "dollars-in-identifiers")) {
848 allow_dollar_in_symbol = truth_value;
849 } if (streq(opt, "builtins")) {
850 use_builtins = truth_value;
851 } else if (streq(opt, "short-wchar")) {
852 wchar_atomic_kind = truth_value ? ATOMIC_TYPE_USHORT
854 } else if (streq(opt, "syntax-only")) {
855 mode = truth_value ? ParseOnly : CompileAssembleLink;
856 } else if (streq(opt, "omit-frame-pointer")) {
857 set_be_option(truth_value ? "omitfp" : "omitfp=no");
858 } else if (streq(opt, "strength-reduce")) {
859 firm_option(truth_value ? "strength-red" : "no-strength-red");
860 } else if (streq(opt, "fast-math") ||
861 streq(opt, "jump-tables") ||
862 streq(opt, "unroll-loops") ||
863 streq(opt, "expensive-optimizations") ||
864 streq(opt, "common") ||
866 streq(opt, "align-loops") ||
867 streq(opt, "align-jumps") ||
868 streq(opt, "align-functions")) {
869 fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
871 int res = firm_option(orig_opt);
873 fprintf(stderr, "error: unknown Firm option '-f%s'\n",
875 argument_errors = true;
877 } else if (res == -1) {
878 help_displayed = true;
882 } else if (option[0] == 'b') {
884 GET_ARG_AFTER(opt, "-b");
885 int res = firm_be_option(opt);
887 fprintf(stderr, "error: unknown Firm backend option '-b %s'\n",
889 argument_errors = true;
890 } else if (res == -1) {
891 help_displayed = true;
892 } else if (strstart(opt, "isa=")) {
893 strncpy(cpu_arch, opt, sizeof(cpu_arch));
895 } else if (option[0] == 'W') {
896 if (strstart(option + 1, "p,")) {
897 // pass options directly to the preprocessor
899 GET_ARG_AFTER(opt, "-Wp,");
900 add_flag(&cppflags_obst, "-Wp,%s", opt);
901 } else if (strstart(option + 1, "l,")) {
902 // pass options directly to the linker
904 GET_ARG_AFTER(opt, "-Wl,");
905 add_flag(&ldflags_obst, "-Wl,%s", opt);
906 } else if (streq(option + 1, "no-trigraphs")
907 || streq(option + 1, "undef")) {
908 add_flag(&cppflags_obst, "%s", arg);
910 set_warning_opt(&option[1]);
912 } else if (option[0] == 'm') {
917 GET_ARG_AFTER(opt, "-m");
918 if (strstart(opt, "arch=")) {
919 GET_ARG_AFTER(opt, "-march=");
920 snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
921 int res = firm_be_option(arch_opt);
923 argument_errors = true;
925 snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
926 int res = firm_be_option(arch_opt);
928 argument_errors = true;
930 } else if (strstart(opt, "tune=")) {
931 GET_ARG_AFTER(opt, "-mtune=");
932 snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
933 int res = firm_be_option(arch_opt);
935 argument_errors = true;
936 } else if (strstart(opt, "cpu=")) {
937 GET_ARG_AFTER(opt, "-mcpu=");
938 snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
939 int res = firm_be_option(arch_opt);
941 argument_errors = true;
942 } else if (strstart(opt, "fpmath=")) {
943 GET_ARG_AFTER(opt, "-mfpmath=");
944 if (streq(opt, "387"))
946 else if (streq(opt, "sse"))
949 fprintf(stderr, "error: option -mfpumath supports only 387 or sse\n");
950 argument_errors = true;
952 if (!argument_errors) {
953 snprintf(arch_opt, sizeof(arch_opt), "%s-fpunit=%s", cpu_arch, opt);
954 int res = firm_be_option(arch_opt);
956 argument_errors = true;
958 } else if (strstart(opt, "preferred-stack-boundary=")) {
959 GET_ARG_AFTER(opt, "-mpreferred-stack-boundary=");
960 snprintf(arch_opt, sizeof(arch_opt), "%s-stackalign=%s", cpu_arch, opt);
961 int res = firm_be_option(arch_opt);
963 argument_errors = true;
964 } else if (streq(opt, "omit-leaf-frame-pointer")) {
965 set_be_option("omitleaffp=1");
966 } else if (streq(opt, "no-omit-leaf-frame-pointer")) {
967 set_be_option("omitleaffp=0");
970 long int value = strtol(opt, &endptr, 10);
971 if (*endptr != '\0') {
972 fprintf(stderr, "error: wrong option '-m %s'\n", opt);
973 argument_errors = true;
975 if (value != 16 && value != 32 && value != 64) {
976 fprintf(stderr, "error: option -m supports only 16, 32 or 64\n");
977 argument_errors = true;
979 machine_size = (unsigned int)value;
982 } else if (streq(option, "pg")) {
983 set_be_option("gprof");
984 add_flag(&ldflags_obst, "-pg");
985 } else if (streq(option, "pedantic") ||
986 streq(option, "ansi")) {
987 fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg);
988 } else if (streq(option, "shared")) {
989 add_flag(&ldflags_obst, "-shared");
990 } else if (strstart(option, "std=")) {
991 const char *const o = &option[4];
993 streq(o, "c++") ? STANDARD_CXX98 :
994 streq(o, "c++98") ? STANDARD_CXX98 :
995 streq(o, "c89") ? STANDARD_C89 :
996 streq(o, "c99") ? STANDARD_C99 :
997 streq(o, "c9x") ? STANDARD_C99 : // deprecated
998 streq(o, "gnu++98") ? STANDARD_GNUXX98 :
999 streq(o, "gnu89") ? STANDARD_GNU89 :
1000 streq(o, "gnu99") ? STANDARD_GNU99 :
1001 streq(o, "gnu9x") ? STANDARD_GNU99 : // deprecated
1002 streq(o, "iso9899:1990") ? STANDARD_C89 :
1003 streq(o, "iso9899:199409") ? STANDARD_C90 :
1004 streq(o, "iso9899:1999") ? STANDARD_C99 :
1005 streq(o, "iso9899:199x") ? STANDARD_C99 : // deprecated
1006 (fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg), standard);
1007 } else if (streq(option, "version")) {
1008 print_cparser_version();
1009 } else if (strstart(option, "print-file-name=")) {
1010 GET_ARG_AFTER(print_file_name_file, "-print-file-name=");
1011 } else if (option[0] == '-') {
1012 /* double dash option */
1014 if (streq(option, "gcc")) {
1015 features_on |= _GNUC;
1016 features_off &= ~_GNUC;
1017 } else if (streq(option, "no-gcc")) {
1018 features_on &= ~_GNUC;
1019 features_off |= _GNUC;
1020 } else if (streq(option, "ms")) {
1022 features_off &= ~_MS;
1023 } else if (streq(option, "no-ms")) {
1024 features_on &= ~_MS;
1025 features_off |= _MS;
1026 } else if (streq(option, "signed-chars")) {
1027 char_is_signed = true;
1028 } else if (streq(option, "unsigned-chars")) {
1029 char_is_signed = false;
1030 } else if (streq(option, "strict")) {
1032 } else if (streq(option, "lextest")) {
1034 } else if (streq(option, "benchmark")) {
1035 mode = BenchmarkParser;
1036 } else if (streq(option, "print-ast")) {
1038 } else if (streq(option, "print-implicit-cast")) {
1039 print_implicit_casts = true;
1040 } else if (streq(option, "print-parenthesis")) {
1041 print_parenthesis = true;
1042 } else if (streq(option, "print-fluffy")) {
1044 } else if (streq(option, "print-caml")) {
1046 } else if (streq(option, "print-jna")) {
1048 } else if (streq(option, "version")) {
1049 print_cparser_version();
1051 } else if (streq(option, "dump-function")) {
1054 fprintf(stderr, "error: "
1055 "expected argument after '--dump-function'\n");
1056 argument_errors = true;
1059 dumpfunction = argv[i];
1062 fprintf(stderr, "error: unknown argument '%s'\n", arg);
1063 argument_errors = true;
1066 fprintf(stderr, "error: unknown argument '%s'\n", arg);
1067 argument_errors = true;
1070 filetype_t type = forced_filetype;
1071 if (type == FILETYPE_AUTODETECT) {
1072 if (streq(arg, "-")) {
1073 /* - implicitly means C source file */
1076 const char *suffix = strrchr(arg, '.');
1077 /* Ensure there is at least one char before the suffix */
1078 if (suffix != NULL && suffix != arg) {
1081 streq(suffix, "S") ? FILETYPE_ASSEMBLER :
1082 streq(suffix, "a") ? FILETYPE_OBJECT :
1083 streq(suffix, "c") ? FILETYPE_C :
1084 streq(suffix, "cc") ? FILETYPE_CXX :
1085 streq(suffix, "cpp") ? FILETYPE_CXX :
1086 streq(suffix, "cxx") ? FILETYPE_CXX :
1087 streq(suffix, "h") ? FILETYPE_C :
1088 streq(suffix, "o") ? FILETYPE_OBJECT :
1089 streq(suffix, "s") ? FILETYPE_PREPROCESSED_ASSEMBLER :
1090 streq(suffix, "so") ? FILETYPE_OBJECT :
1091 FILETYPE_AUTODETECT;
1095 if (type == FILETYPE_AUTODETECT) {
1096 fprintf(stderr, "'%s': file format not recognized\n", arg);
1101 file_list_entry_t *entry
1102 = obstack_alloc(&file_obst, sizeof(entry[0]));
1103 memset(entry, 0, sizeof(entry[0]));
1107 if (last_file != NULL) {
1108 last_file->next = entry;
1116 if (print_file_name_file != NULL) {
1117 print_file_name(print_file_name_file);
1121 if (files == NULL) {
1122 fprintf(stderr, "error: no input files specified\n");
1123 argument_errors = true;
1126 if (help_displayed) {
1127 return !argument_errors;
1129 if (argument_errors) {
1134 /* we do the lowering in ast2firm */
1135 firm_opt.lower_bitfields = FALSE;
1138 init_symbol_table();
1148 if (construct_dep_target) {
1149 if (outname != 0 && strlen(outname) >= 2) {
1150 get_output_name(dep_target, sizeof(dep_target), outname, ".d");
1152 get_output_name(dep_target, sizeof(dep_target), files->name, ".d");
1155 dep_target[0] = '\0';
1158 char outnamebuf[4096];
1159 if (outname == NULL) {
1160 const char *filename = files->name;
1163 case BenchmarkParser:
1169 case PreprocessOnly:
1174 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".s");
1175 outname = outnamebuf;
1177 case CompileAssemble:
1178 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".o");
1179 outname = outnamebuf;
1182 get_output_name(outnamebuf, sizeof(outnamebuf), dumpfunction,
1184 outname = outnamebuf;
1186 case CompileAssembleLink:
1196 assert(outname != NULL);
1199 if (streq(outname, "-")) {
1202 out = fopen(outname, "w");
1204 fprintf(stderr, "Couldn't open '%s' for writing: %s\n", outname,
1210 file_list_entry_t *file;
1211 for (file = files; file != NULL; file = file->next) {
1212 char asm_tempfile[1024];
1213 const char *filename = file->name;
1214 filetype_t filetype = file->type;
1216 if (filetype == FILETYPE_OBJECT)
1220 if (mode == LexTest) {
1222 in = open_file(filename);
1223 lextest(in, filename);
1228 FILE *preprocessed_in = NULL;
1231 filetype = FILETYPE_PREPROCESSED_C;
1234 filetype = FILETYPE_PREPROCESSED_CXX;
1236 case FILETYPE_ASSEMBLER:
1237 filetype = FILETYPE_PREPROCESSED_ASSEMBLER;
1238 add_flag(&cppflags_obst, "-x");
1239 add_flag(&cppflags_obst, "assembler-with-cpp");
1242 /* no support for input on FILE* yet */
1244 panic("internal compiler error: in for preprocessor != NULL");
1246 preprocessed_in = preprocess(filename);
1247 if (mode == PreprocessOnly) {
1248 copy_file(out, preprocessed_in);
1249 int result = pclose(preprocessed_in);
1251 /* remove output file in case of error */
1252 if (out != stdout && result != EXIT_SUCCESS) {
1258 in = preprocessed_in;
1266 if (mode == Compile) {
1269 asm_out = make_temp_file(asm_tempfile, sizeof(asm_tempfile), "ccs");
1273 in = open_file(filename);
1275 /* preprocess and compile */
1276 if (filetype == FILETYPE_PREPROCESSED_C) {
1277 char const* invalid_mode;
1280 case STANDARD_C89: c_mode = _C89; break;
1281 /* TODO ^v determine difference between these two */
1282 case STANDARD_C90: c_mode = _C89; break;
1283 case STANDARD_C99: c_mode = _C89 | _C99; break;
1284 case STANDARD_GNU89: c_mode = _C89 | _GNUC; break;
1288 "warning: command line option \"-std=%s\" is not valid for C\n",
1291 case STANDARD_DEFAULT:
1292 case STANDARD_GNU99: c_mode = _C89 | _C99 | _GNUC; break;
1294 case STANDARD_CXX98: invalid_mode = "c++98"; goto default_c_warn;
1295 case STANDARD_GNUXX98: invalid_mode = "gnu98"; goto default_c_warn;
1298 } else if (filetype == FILETYPE_PREPROCESSED_CXX) {
1299 char const* invalid_mode;
1301 case STANDARD_C89: invalid_mode = "c89"; goto default_cxx_warn;
1302 case STANDARD_C90: invalid_mode = "c90"; goto default_cxx_warn;
1303 case STANDARD_C99: invalid_mode = "c99"; goto default_cxx_warn;
1304 case STANDARD_GNU89: invalid_mode = "gnu89"; goto default_cxx_warn;
1305 case STANDARD_GNU99: invalid_mode = "gnu99"; goto default_cxx_warn;
1308 case STANDARD_CXX98: c_mode = _CXX; break;
1312 "warning: command line option \"-std=%s\" is not valid for C++\n",
1314 case STANDARD_DEFAULT:
1315 case STANDARD_GNUXX98: c_mode = _CXX | _GNUC; break;
1319 c_mode |= features_on;
1320 c_mode &= ~features_off;
1322 translation_unit_t *const unit = do_parsing(in, filename);
1324 /* prints the AST even if errors occurred */
1325 if (mode == PrintAst) {
1326 type_set_output(out);
1327 ast_set_output(out);
1331 if (error_count > 0) {
1332 /* parsing failed because of errors */
1333 fprintf(stderr, "%u error(s), %u warning(s)\n", error_count,
1335 result = EXIT_FAILURE;
1337 } else if (warning_count > 0) {
1338 fprintf(stderr, "%u warning(s)\n", warning_count);
1341 if (in == preprocessed_in) {
1342 int pp_result = pclose(preprocessed_in);
1343 if (pp_result != EXIT_SUCCESS) {
1344 /* remove output file */
1351 if (mode == BenchmarkParser) {
1353 } else if (mode == PrintFluffy) {
1354 write_fluffy_decls(out, unit);
1356 } else if (mode == PrintCaml) {
1357 write_caml_decls(out, unit);
1359 } else if (mode == PrintJna) {
1360 write_jna_decls(out, unit);
1364 translation_unit_to_firm(unit);
1366 if (mode == ParseOnly) {
1370 if (mode == CompileDump) {
1372 ident *id = new_id_from_str(dumpfunction);
1373 ir_graph *irg = NULL;
1374 int n_irgs = get_irp_n_irgs();
1375 for (int i = 0; i < n_irgs; ++i) {
1376 ir_graph *tirg = get_irp_irg(i);
1377 ident *irg_id = get_entity_ident(get_irg_entity(tirg));
1385 fprintf(stderr, "No graph for function '%s' found\n",
1390 dump_ir_block_graph_file(irg, out);
1395 gen_firm_finish(asm_out, filename, /*c_mode=*/1,
1396 have_const_functions);
1397 if (asm_out != out) {
1400 } else if (filetype == FILETYPE_PREPROCESSED_ASSEMBLER) {
1401 copy_file(asm_out, in);
1402 if (in == preprocessed_in) {
1403 int pp_result = pclose(preprocessed_in);
1404 if (pp_result != EXIT_SUCCESS) {
1405 /* remove output in error case */
1411 if (asm_out != out) {
1416 if (mode == Compile)
1419 /* if we're here then we have preprocessed assembly */
1420 filename = asm_tempfile;
1421 filetype = FILETYPE_PREPROCESSED_ASSEMBLER;
1424 if (filetype == FILETYPE_PREPROCESSED_ASSEMBLER) {
1426 const char *filename_o;
1427 if (mode == CompileAssemble) {
1429 filename_o = outname;
1431 FILE *tempf = make_temp_file(temp, sizeof(temp), "cco");
1436 assemble(filename_o, filename);
1438 size_t len = strlen(filename_o) + 1;
1439 filename = obstack_copy(&file_obst, filename_o, len);
1440 filetype = FILETYPE_OBJECT;
1443 /* ok we're done here, process next file */
1444 file->name = filename;
1445 file->type = filetype;
1448 if (result != EXIT_SUCCESS) {
1454 /* link program file */
1455 if (mode == CompileAssembleLink) {
1456 obstack_1grow(&ldflags_obst, '\0');
1457 const char *flags = obstack_finish(&ldflags_obst);
1459 /* construct commandline */
1460 obstack_printf(&file_obst, "%s", LINKER);
1461 for (file_list_entry_t *entry = files; entry != NULL;
1462 entry = entry->next) {
1463 if (entry->type != FILETYPE_OBJECT)
1466 add_flag(&file_obst, "%s", entry->name);
1469 add_flag(&file_obst, "-o");
1470 add_flag(&file_obst, outname);
1471 obstack_printf(&file_obst, "%s", flags);
1472 obstack_1grow(&file_obst, '\0');
1474 char *commandline = obstack_finish(&file_obst);
1479 int err = system(commandline);
1480 if (err != EXIT_SUCCESS) {
1481 fprintf(stderr, "linker reported an error\n");
1486 obstack_free(&cppflags_obst, NULL);
1487 obstack_free(&ldflags_obst, NULL);
1488 obstack_free(&file_obst, NULL);
1498 exit_symbol_table();