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 "write_fluffy.h"
76 #include "write_caml.h"
83 #define PREPROCESSOR "gcc -E -std=c99 -m32 -U__STRICT_ANSI__"
85 #define PREPROCESSOR "cpp -std=c99 -m32 -U__STRICT_ANSI__"
90 #define LINKER "gcc -m32"
95 #define ASSEMBLER "gcc -c -xassembler"
97 #define ASSEMBLER "as --32"
101 /** The current c mode/dialect. */
102 unsigned int c_mode = _C89 | _ANSI | _C99 | _GNUC;
104 /** The 'machine size', 16, 32 or 64 bit, 32bit is the default. */
105 unsigned int machine_size = 32;
107 /** true if the char type is signed. */
108 bool char_is_signed = true;
110 /** true for strict language checking. */
111 bool strict_mode = false;
113 /** use builtins for some libc functions */
114 bool use_builtins = false;
116 /** we have extern function with const attribute. */
117 bool have_const_functions = false;
119 atomic_type_kind_t wchar_atomic_kind = ATOMIC_TYPE_INT;
121 /* to switch on printing of implicit casts */
122 extern bool print_implicit_casts;
124 /* to switch on printing of parenthesis to indicate operator precedence */
125 extern bool print_parenthesis;
128 static struct obstack cppflags_obst, ldflags_obst;
129 static char dep_target[1024];
130 static const char *outname;
132 typedef struct file_list_entry_t file_list_entry_t;
134 typedef enum filetype_t {
137 FILETYPE_PREPROCESSED_C,
139 FILETYPE_PREPROCESSED_CXX,
141 FILETYPE_PREPROCESSED_ASSEMBLER,
146 struct file_list_entry_t {
147 const char *name; /**< filename or NULL for stdin */
149 file_list_entry_t *next;
152 static file_list_entry_t *temp_files;
154 #if defined(_DEBUG) || defined(FIRM_DEBUG)
156 * Debug printf implementation.
158 * @param fmt printf style format parameter
160 void dbg_printf(const char *fmt, ...)
164 if (firm_dump.debug_print) {
170 #endif /* defined(_DEBUG) || defined(FIRM_DEBUG) */
172 static void initialize_firm(void)
176 dump_consts_local(1);
177 dump_keepalive_edges(1);
180 static void get_output_name(char *buf, size_t buflen, const char *inputname,
183 size_t last_dot = 0xffffffff;
186 if (inputname == NULL) {
187 snprintf(buf, buflen, "a%s", newext);
191 for (const char *c = inputname; *c != 0; ++c) {
196 if (last_dot == 0xffffffff)
199 if (last_dot >= buflen)
200 panic("filename too long");
201 memcpy(buf, inputname, last_dot);
203 size_t extlen = strlen(newext) + 1;
204 if (extlen + last_dot >= buflen)
205 panic("filename too long");
206 memcpy(buf+last_dot, newext, extlen);
209 #include "builtins.h"
211 static translation_unit_t *do_parsing(FILE *const in, const char *const input_name)
216 lexer_open_buffer(builtins, sizeof(builtins)-1, "<builtin>");
220 lexer_open_stream(in, input_name);
223 translation_unit_t *unit = finish_parsing();
227 static void lextest(FILE *in, const char *fname)
229 lexer_open_stream(in, fname);
232 lexer_next_preprocessing_token();
233 print_token(stdout, &lexer_token);
235 } while (lexer_token.type != T_EOF);
238 static void add_flag(struct obstack *obst, const char *format, ...)
240 obstack_1grow(obst, ' ');
242 obstack_1grow(obst, '"');
243 obstack_vprintf(obst, format, ap);
244 obstack_1grow(obst, '"');
248 va_start(ap, format);
249 vsnprintf(buf, sizeof(buf), format, ap);
252 /* escape stuff... */
253 for (char *c = buf; *c != '\0'; ++c) {
266 obstack_1grow(obst, '\\');
269 obstack_1grow(obst, *c);
276 static const char *type_to_string(type_t *type)
278 assert(type->kind == TYPE_ATOMIC);
279 return get_atomic_kind_name(type->atomic.akind);
282 static FILE *preprocess(const char *fname)
284 obstack_1grow(&cppflags_obst, '\0');
285 const char *flags = obstack_finish(&cppflags_obst);
287 obstack_printf(&cppflags_obst, "%s", PREPROCESSOR);
289 /* setup default defines */
290 add_flag(&cppflags_obst, "-U__WCHAR_TYPE__");
291 add_flag(&cppflags_obst, "-D__WCHAR_TYPE__=%s", type_to_string(type_wchar_t));
292 add_flag(&cppflags_obst, "-U__SIZE_TYPE__");
293 add_flag(&cppflags_obst, "-D__SIZE_TYPE__=%s", type_to_string(type_size_t));
295 /* handle dependency generation */
296 if (dep_target[0] != '\0') {
297 add_flag(&cppflags_obst, "-MF");
298 add_flag(&cppflags_obst, dep_target);
299 if (outname != NULL) {
300 add_flag(&cppflags_obst, "-MQ");
301 add_flag(&cppflags_obst, outname);
304 if (flags[0] != '\0') {
305 obstack_printf(&cppflags_obst, " %s", flags);
307 add_flag(&cppflags_obst, fname);
309 obstack_1grow(&cppflags_obst, '\0');
310 const char *buf = obstack_finish(&cppflags_obst);
315 FILE *f = popen(buf, "r");
317 fprintf(stderr, "invoking preprocessor failed\n");
324 static void assemble(const char *out, const char *in)
328 snprintf(buf, sizeof(buf), "%s %s -o %s", ASSEMBLER, in, out);
333 int err = system(buf);
335 fprintf(stderr, "assembler reported an error\n");
340 static const char *try_dir(const char *dir)
344 if (access(dir, R_OK | W_OK | X_OK) == 0)
349 static const char *get_tempdir(void)
351 static const char *tmpdir = NULL;
357 tmpdir = try_dir(getenv("TMPDIR"));
359 tmpdir = try_dir(getenv("TMP"));
361 tmpdir = try_dir(getenv("TEMP"));
365 tmpdir = try_dir(P_tmpdir);
369 tmpdir = try_dir("/var/tmp");
371 tmpdir = try_dir("/usr/tmp");
373 tmpdir = try_dir("/tmp");
382 /* cheap and nasty mkstemp replacement */
383 static int mkstemp(char *templ)
386 return open(templ, O_RDWR|O_CREAT|O_EXCL|O_BINARY, 0600);
391 * an own version of tmpnam, which: writes in a buffer, emits no warnings
392 * during linking (like glibc/gnu ld do for tmpnam)...
394 static FILE *make_temp_file(char *buffer, size_t buflen, const char *prefix)
396 const char *tempdir = get_tempdir();
398 snprintf(buffer, buflen, "%s/%sXXXXXX", tempdir, prefix);
400 int fd = mkstemp(buffer);
402 fprintf(stderr, "couldn't create temporary file: %s\n",
406 FILE *out = fdopen(fd, "w");
408 fprintf(stderr, "couldn't create temporary file FILE*\n");
412 file_list_entry_t *entry = xmalloc(sizeof(*entry));
413 memset(entry, 0, sizeof(*entry));
415 size_t name_len = strlen(buffer) + 1;
416 char *name = malloc(name_len);
417 memcpy(name, buffer, name_len);
420 entry->next = temp_files;
426 static void free_temp_files(void)
428 file_list_entry_t *entry = temp_files;
429 file_list_entry_t *next;
430 for ( ; entry != NULL; entry = next) {
434 free((char*) entry->name);
441 * Do the necessary lowering for compound parameters.
443 void lower_compound_params(void)
445 lower_params_t params;
447 params.def_ptr_alignment = 4;
448 params.flags = LF_COMPOUND_RETURN | LF_RETURN_HIDDEN;
449 params.hidden_params = ADD_HIDDEN_ALWAYS_IN_FRONT;
450 params.find_pointer_type = NULL;
451 params.ret_compound_in_regs = NULL;
452 lower_calls_with_compounds(¶ms);
455 typedef enum compile_mode_t {
469 static void usage(const char *argv0)
471 fprintf(stderr, "Usage %s input [-o output] [-c]\n", argv0);
474 static void print_cparser_version(void) {
476 firm_get_version(&ver);
478 printf("cparser (%s) using libFirm (%u.%u",
479 cparser_REVISION, ver.major, ver.minor);
480 if (ver.revision[0] != 0) {
482 fputs(ver.revision, stdout);
484 if (ver.build[0] != 0) {
486 fputs(ver.build, stdout);
491 static void set_be_option(const char *arg)
493 int res = firm_be_option(arg);
498 static void set_option(const char *arg)
500 int res = firm_option(arg);
505 static void copy_file(FILE *dest, FILE *input)
509 while (!feof(input) && !ferror(dest)) {
510 size_t read = fread(buf, 1, sizeof(buf), input);
511 if (fwrite(buf, 1, read, dest) != read) {
512 perror("couldn't write output");
517 static inline bool streq(char const* a, char const* b)
519 return strcmp(a, b) == 0;
522 static inline bool strstart(char const* str, char const* start)
527 } while (*str++ == *start++);
531 static FILE *open_file(const char *filename)
533 if (streq(filename, "-")) {
537 FILE *in = fopen(filename, "r");
539 fprintf(stderr, "Couldn't open '%s': %s\n", filename,
547 static filetype_t get_filetype_from_string(const char *string)
549 if (streq(string, "c") || streq(string, "c-header"))
551 if (streq(string, "c++") || streq(string, "c++-header"))
553 if (streq(string, "assembler"))
554 return FILETYPE_PREPROCESSED_ASSEMBLER;
555 if (streq(string, "assembler-with-cpp"))
556 return FILETYPE_ASSEMBLER;
557 if (streq(string, "none"))
558 return FILETYPE_AUTODETECT;
560 return FILETYPE_UNKNOWN;
563 static void init_os_support(void)
565 /* OS option must be set to the backend */
566 switch (firm_opt.os_support) {
567 case OS_SUPPORT_MINGW:
568 set_be_option("ia32-gasmode=mingw");
569 wchar_atomic_kind = ATOMIC_TYPE_USHORT;
571 case OS_SUPPORT_LINUX:
572 set_be_option("ia32-gasmode=elf");
574 case OS_SUPPORT_MACHO:
575 set_be_option("ia32-gasmode=macho");
576 set_be_option("ia32-stackalign=4");
577 set_be_option("pic");
582 typedef enum lang_standard_t {
583 STANDARD_DEFAULT, /* gnu99 (for C, GCC does gnu89) or gnu++98 (for C++) */
584 STANDARD_ANSI, /* c89 (for C) or c++98 (for C++) */
585 STANDARD_C89, /* ISO C90 (sic) */
586 STANDARD_C90, /* ISO C90 as modified in amendment 1 */
587 STANDARD_C99, /* ISO C99 */
588 STANDARD_GNU89, /* ISO C90 plus GNU extensions (including some C99) */
589 STANDARD_GNU99, /* ISO C99 plus GNU extensions */
590 STANDARD_CXX98, /* ISO C++ 1998 plus amendments */
591 STANDARD_GNUXX98 /* ISO C++ 1998 plus amendments and GNU extensions */
594 int main(int argc, char **argv)
598 const char *dumpfunction = NULL;
599 compile_mode_t mode = CompileAssembleLink;
601 int result = EXIT_SUCCESS;
602 char cpu_arch[16] = "ia32";
603 file_list_entry_t *files = NULL;
604 file_list_entry_t *last_file = NULL;
605 bool construct_dep_target = false;
606 struct obstack file_obst;
608 atexit(free_temp_files);
610 /* hack for now... */
611 if (strstr(argv[0], "pptest") != NULL) {
612 extern int pptest_main(int argc, char **argv);
613 return pptest_main(argc, argv);
616 obstack_init(&cppflags_obst);
617 obstack_init(&ldflags_obst);
618 obstack_init(&file_obst);
620 #define GET_ARG_AFTER(def, args) \
621 def = &arg[sizeof(args)-1]; \
622 if (def[0] == '\0') { \
625 fprintf(stderr, "error: expected argument after '" args "'\n"); \
626 argument_errors = true; \
630 if (def[0] == '-' && def[1] != '\0') { \
631 fprintf(stderr, "error: expected argument after '" args "'\n"); \
632 argument_errors = true; \
637 #define SINGLE_OPTION(ch) (option[0] == (ch) && option[1] == '\0')
639 /* early options parsing (find out optimisation level and OS) */
640 for (int i = 1; i < argc; ++i) {
641 const char *arg = argv[i];
645 const char *option = &arg[1];
646 if (option[0] == 'O') {
647 sscanf(&option[1], "%d", &opt_level);
649 if (strcmp(arg, "-fwin32") == 0) {
650 firm_opt.os_support = OS_SUPPORT_MINGW;
651 } else if (strcmp(arg, "-fmac") == 0) {
652 firm_opt.os_support = OS_SUPPORT_MACHO;
653 } else if (strcmp(arg, "-flinux") == 0) {
654 firm_opt.os_support = OS_SUPPORT_LINUX;
658 /* set target/os specific stuff */
661 /* apply optimisation level */
664 set_option("no-opt");
667 set_option("no-inline");
671 set_option("strict-aliasing");
672 /* use_builtins = true; */
675 set_option("cond-eval");
676 set_option("if-conv");
679 set_option("inline");
680 set_option("deconv");
681 set_be_option("omitfp");
685 /* parse rest of options */
686 lang_standard_t standard = STANDARD_DEFAULT;
687 unsigned features_on = 0;
688 unsigned features_off = 0;
689 filetype_t forced_filetype = FILETYPE_AUTODETECT;
690 bool help_displayed = false;
691 bool argument_errors = false;
692 for (int i = 1; i < argc; ++i) {
693 const char *arg = argv[i];
694 if (arg[0] == '-' && arg[1] != '\0') {
696 const char *option = &arg[1];
697 if (option[0] == 'o') {
698 GET_ARG_AFTER(outname, "-o");
699 } else if (option[0] == 'g') {
700 set_be_option("debuginfo=stabs");
701 set_be_option("omitfp=no");
702 set_be_option("ia32-nooptcc=yes");
703 } else if (SINGLE_OPTION('c')) {
704 mode = CompileAssemble;
705 } else if (SINGLE_OPTION('E')) {
706 mode = PreprocessOnly;
707 } else if (SINGLE_OPTION('S')) {
709 } else if (option[0] == 'O') {
711 } else if (option[0] == 'I') {
713 GET_ARG_AFTER(opt, "-I");
714 add_flag(&cppflags_obst, "-I%s", opt);
715 } else if (option[0] == 'D') {
717 GET_ARG_AFTER(opt, "-D");
718 add_flag(&cppflags_obst, "-D%s", opt);
719 } else if (option[0] == 'U') {
721 GET_ARG_AFTER(opt, "-U");
722 add_flag(&cppflags_obst, "-U%s", opt);
723 } else if (option[0] == 'l') {
725 GET_ARG_AFTER(opt, "-l");
726 add_flag(&ldflags_obst, "-l%s", opt);
727 } else if (option[0] == 'L') {
729 GET_ARG_AFTER(opt, "-L");
730 add_flag(&ldflags_obst, "-L%s", opt);
731 } else if (SINGLE_OPTION('v')) {
733 } else if (SINGLE_OPTION('w')) {
734 memset(&warning, 0, sizeof(warning));
735 } else if (option[0] == 'x') {
737 GET_ARG_AFTER(opt, "-x");
738 forced_filetype = get_filetype_from_string(opt);
739 if (forced_filetype == FILETYPE_UNKNOWN) {
740 fprintf(stderr, "Unknown language '%s'\n", opt);
741 argument_errors = true;
743 } else if (streq(option, "M")) {
744 mode = PreprocessOnly;
745 add_flag(&cppflags_obst, "-M");
746 } else if (streq(option, "MMD") ||
747 streq(option, "MD")) {
748 construct_dep_target = true;
749 add_flag(&cppflags_obst, "-%s", option);
750 } else if (streq(option, "MM") ||
751 streq(option, "MP")) {
752 add_flag(&cppflags_obst, "-%s", option);
753 } else if (streq(option, "MT") ||
754 streq(option, "MQ") ||
755 streq(option, "MF")) {
757 GET_ARG_AFTER(opt, "-MT");
758 add_flag(&cppflags_obst, "-%s", option);
759 add_flag(&cppflags_obst, "%s", opt);
760 } else if (streq(option, "pipe")) {
761 /* here for gcc compatibility */
762 } else if (option[0] == 'f') {
763 char const *orig_opt;
764 GET_ARG_AFTER(orig_opt, "-f");
766 if (strstart(orig_opt, "align-loops=") ||
767 strstart(orig_opt, "align-jumps=") ||
768 strstart(orig_opt, "align-functions=")) {
769 fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
771 char const *opt = orig_opt;
772 bool truth_value = true;
773 if (opt[0] == 'n' && opt[1] == 'o' && opt[2] == '-') {
778 if (streq(opt, "dollars-in-identifiers")) {
779 allow_dollar_in_symbol = truth_value;
780 } if (streq(opt, "builtins")) {
781 use_builtins = truth_value;
782 } else if (streq(opt, "short-wchar")) {
783 wchar_atomic_kind = truth_value ? ATOMIC_TYPE_USHORT
785 } else if (streq(opt, "syntax-only")) {
786 mode = truth_value ? ParseOnly : CompileAssembleLink;
787 } else if (streq(opt, "omit-frame-pointer")) {
788 set_be_option(truth_value ? "omitfp" : "omitfp=no");
789 } else if (streq(opt, "strength-reduce")) {
790 firm_option(truth_value ? "strength-red" : "no-strength-red");
791 } else if (streq(opt, "fast-math") ||
792 streq(opt, "jump-tables") ||
793 streq(opt, "unroll-loops") ||
794 streq(opt, "expensive-optimizations") ||
795 streq(opt, "common") ||
797 streq(opt, "align-loops") ||
798 streq(opt, "align-jumps") ||
799 streq(opt, "align-functions")) {
800 fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
802 int res = firm_option(orig_opt);
804 fprintf(stderr, "error: unknown Firm option '-f%s'\n",
806 argument_errors = true;
808 } else if (res == -1) {
809 help_displayed = true;
813 } else if (option[0] == 'b') {
815 GET_ARG_AFTER(opt, "-b");
816 int res = firm_be_option(opt);
818 fprintf(stderr, "error: unknown Firm backend option '-b %s'\n",
820 argument_errors = true;
821 } else if (res == -1) {
822 help_displayed = true;
823 } else if (strstart(opt, "isa=")) {
824 strncpy(cpu_arch, opt, sizeof(cpu_arch));
826 } else if (option[0] == 'W') {
827 if (strstart(option + 1, "l,")) // a gcc-style linker option
830 GET_ARG_AFTER(opt, "-Wl,");
831 add_flag(&ldflags_obst, "-Wl,%s", opt);
833 else set_warning_opt(&option[1]);
834 } else if (option[0] == 'm') {
839 GET_ARG_AFTER(opt, "-m");
840 if (strstart(opt, "arch=")) {
841 GET_ARG_AFTER(opt, "-march=");
842 snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
843 int res = firm_be_option(arch_opt);
845 argument_errors = true;
847 snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
848 int res = firm_be_option(arch_opt);
850 argument_errors = true;
852 } else if (strstart(opt, "tune=")) {
853 GET_ARG_AFTER(opt, "-mtune=");
854 snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
855 int res = firm_be_option(arch_opt);
857 argument_errors = true;
858 } else if (strstart(opt, "cpu=")) {
859 GET_ARG_AFTER(opt, "-mcpu=");
860 snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
861 int res = firm_be_option(arch_opt);
863 argument_errors = true;
864 } else if (strstart(opt, "fpmath=")) {
865 GET_ARG_AFTER(opt, "-mfpmath=");
866 if (streq(opt, "387"))
868 else if (streq(opt, "sse"))
871 fprintf(stderr, "error: option -mfpumath supports only 387 or sse\n");
872 argument_errors = true;
874 if (!argument_errors) {
875 snprintf(arch_opt, sizeof(arch_opt), "%s-fpunit=%s", cpu_arch, opt);
876 int res = firm_be_option(arch_opt);
878 argument_errors = true;
880 } else if (strstart(opt, "preferred-stack-boundary=")) {
881 GET_ARG_AFTER(opt, "-mpreferred-stack-boundary=");
882 snprintf(arch_opt, sizeof(arch_opt), "%s-stackalign=%s", cpu_arch, opt);
883 int res = firm_be_option(arch_opt);
885 argument_errors = true;
886 } else if (streq(opt, "omit-leaf-frame-pointer")) {
887 set_be_option("omitleaffp=1");
888 } else if (streq(opt, "no-omit-leaf-frame-pointer")) {
889 set_be_option("omitleaffp=0");
892 long int value = strtol(opt, &endptr, 10);
893 if (*endptr != '\0') {
894 fprintf(stderr, "error: wrong option '-m %s'\n", opt);
895 argument_errors = true;
897 if (value != 16 && value != 32 && value != 64) {
898 fprintf(stderr, "error: option -m supports only 16, 32 or 64\n");
899 argument_errors = true;
901 machine_size = (unsigned int)value;
904 } else if (streq(option, "pg")) {
905 set_be_option("gprof");
906 add_flag(&ldflags_obst, "-pg");
907 } else if (streq(option, "pedantic") ||
908 streq(option, "ansi")) {
909 fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg);
910 } else if (streq(option, "shared")) {
911 add_flag(&ldflags_obst, "-shared");
912 } else if (strstart(option, "std=")) {
913 const char *const o = &option[4];
915 streq(o, "c++") ? STANDARD_CXX98 :
916 streq(o, "c++98") ? STANDARD_CXX98 :
917 streq(o, "c89") ? STANDARD_C89 :
918 streq(o, "c99") ? STANDARD_C99 :
919 streq(o, "c9x") ? STANDARD_C99 : // deprecated
920 streq(o, "gnu++98") ? STANDARD_GNUXX98 :
921 streq(o, "gnu89") ? STANDARD_GNU89 :
922 streq(o, "gnu99") ? STANDARD_GNU99 :
923 streq(o, "gnu9x") ? STANDARD_GNU99 : // deprecated
924 streq(o, "iso9899:1990") ? STANDARD_C89 :
925 streq(o, "iso9899:199409") ? STANDARD_C90 :
926 streq(o, "iso9899:1999") ? STANDARD_C99 :
927 streq(o, "iso9899:199x") ? STANDARD_C99 : // deprecated
928 (fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg), standard);
929 } else if (streq(option, "version")) {
930 print_cparser_version();
931 } else if (option[0] == '-') {
932 /* double dash option */
934 if (streq(option, "gcc")) {
935 features_on |= _GNUC;
936 features_off &= ~_GNUC;
937 } else if (streq(option, "no-gcc")) {
938 features_on &= ~_GNUC;
939 features_off |= _GNUC;
940 } else if (streq(option, "ms")) {
942 features_off &= ~_MS;
943 } else if (streq(option, "no-ms")) {
946 } else if (streq(option, "signed-chars")) {
947 char_is_signed = true;
948 } else if (streq(option, "unsigned-chars")) {
949 char_is_signed = false;
950 } else if (streq(option, "strict")) {
952 } else if (streq(option, "lextest")) {
954 } else if (streq(option, "benchmark")) {
955 mode = BenchmarkParser;
956 } else if (streq(option, "print-ast")) {
958 } else if (streq(option, "print-implicit-cast")) {
959 print_implicit_casts = true;
960 } else if (streq(option, "print-parenthesis")) {
961 print_parenthesis = true;
962 } else if (streq(option, "print-fluffy")) {
964 } else if (streq(option, "print-caml")) {
966 } else if (streq(option, "version")) {
967 print_cparser_version();
969 } else if (streq(option, "dump-function")) {
972 fprintf(stderr, "error: "
973 "expected argument after '--dump-function'\n");
974 argument_errors = true;
977 dumpfunction = argv[i];
980 fprintf(stderr, "error: unknown argument '%s'\n", arg);
981 argument_errors = true;
984 fprintf(stderr, "error: unknown argument '%s'\n", arg);
985 argument_errors = true;
988 filetype_t type = forced_filetype;
989 if (type == FILETYPE_AUTODETECT) {
990 if (streq(arg, "-")) {
991 /* - implicitly means C source file */
994 const char *suffix = strrchr(arg, '.');
995 /* Ensure there is at least one char before the suffix */
996 if (suffix != NULL && suffix != arg) {
999 streq(suffix, "S") ? FILETYPE_ASSEMBLER :
1000 streq(suffix, "a") ? FILETYPE_OBJECT :
1001 streq(suffix, "c") ? FILETYPE_C :
1002 streq(suffix, "cc") ? FILETYPE_CXX :
1003 streq(suffix, "cpp") ? FILETYPE_CXX :
1004 streq(suffix, "cxx") ? FILETYPE_CXX :
1005 streq(suffix, "h") ? FILETYPE_C :
1006 streq(suffix, "o") ? FILETYPE_OBJECT :
1007 streq(suffix, "s") ? FILETYPE_PREPROCESSED_ASSEMBLER :
1008 streq(suffix, "so") ? FILETYPE_OBJECT :
1009 FILETYPE_AUTODETECT;
1013 if (type == FILETYPE_AUTODETECT) {
1014 fprintf(stderr, "'%s': file format not recognized\n", arg);
1019 file_list_entry_t *entry
1020 = obstack_alloc(&file_obst, sizeof(entry[0]));
1021 memset(entry, 0, sizeof(entry[0]));
1025 if (last_file != NULL) {
1026 last_file->next = entry;
1034 if (files == NULL) {
1035 fprintf(stderr, "error: no input files specified\n");
1036 argument_errors = true;
1039 if (help_displayed) {
1040 return !argument_errors;
1042 if (argument_errors) {
1047 /* we do the lowering in ast2firm */
1048 firm_opt.lower_bitfields = FALSE;
1051 init_symbol_table();
1061 if (construct_dep_target) {
1062 if (outname != 0 && strlen(outname) >= 2) {
1063 get_output_name(dep_target, sizeof(dep_target), outname, ".d");
1065 get_output_name(dep_target, sizeof(dep_target), files->name, ".d");
1068 dep_target[0] = '\0';
1071 char outnamebuf[4096];
1072 if (outname == NULL) {
1073 const char *filename = files->name;
1076 case BenchmarkParser:
1081 case PreprocessOnly:
1086 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".s");
1087 outname = outnamebuf;
1089 case CompileAssemble:
1090 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".o");
1091 outname = outnamebuf;
1094 get_output_name(outnamebuf, sizeof(outnamebuf), dumpfunction,
1096 outname = outnamebuf;
1098 case CompileAssembleLink:
1108 assert(outname != NULL);
1111 if (streq(outname, "-")) {
1114 out = fopen(outname, "w");
1116 fprintf(stderr, "Couldn't open '%s' for writing: %s\n", outname,
1122 file_list_entry_t *file;
1123 for (file = files; file != NULL; file = file->next) {
1124 char asm_tempfile[1024];
1125 const char *filename = file->name;
1126 filetype_t filetype = file->type;
1128 if (filetype == FILETYPE_OBJECT)
1132 if (mode == LexTest) {
1134 in = open_file(filename);
1135 lextest(in, filename);
1140 FILE *preprocessed_in = NULL;
1142 case FILETYPE_C: filetype = FILETYPE_PREPROCESSED_C; goto preprocess;
1143 case FILETYPE_CXX: filetype = FILETYPE_PREPROCESSED_CXX; goto preprocess;
1144 case FILETYPE_ASSEMBLER: filetype = FILETYPE_PREPROCESSED_ASSEMBLER; goto preprocess;
1146 /* no support for input on FILE* yet */
1148 panic("internal compiler error: in for preprocessor != NULL");
1150 preprocessed_in = preprocess(filename);
1151 if (mode == PreprocessOnly) {
1152 copy_file(out, preprocessed_in);
1153 int result = pclose(preprocessed_in);
1158 in = preprocessed_in;
1166 if (mode == Compile) {
1169 asm_out = make_temp_file(asm_tempfile, sizeof(asm_tempfile), "ccs");
1173 in = open_file(filename);
1175 /* preprocess and compile */
1176 if (filetype == FILETYPE_PREPROCESSED_C) {
1177 char const* invalid_mode;
1180 case STANDARD_C89: c_mode = _C89; break;
1181 /* TODO ^v determine difference between these two */
1182 case STANDARD_C90: c_mode = _C89; break;
1183 case STANDARD_C99: c_mode = _C89 | _C99; break;
1184 case STANDARD_GNU89: c_mode = _C89 | _GNUC; break;
1188 "warning: command line option \"-std=%s\" is not valid for C\n",
1191 case STANDARD_DEFAULT:
1192 case STANDARD_GNU99: c_mode = _C89 | _C99 | _GNUC; break;
1194 case STANDARD_CXX98: invalid_mode = "c++98"; goto default_c_warn;
1195 case STANDARD_GNUXX98: invalid_mode = "gnu98"; goto default_c_warn;
1198 } else if (filetype == FILETYPE_PREPROCESSED_CXX) {
1199 char const* invalid_mode;
1201 case STANDARD_C89: invalid_mode = "c89"; goto default_cxx_warn;
1202 case STANDARD_C90: invalid_mode = "c90"; goto default_cxx_warn;
1203 case STANDARD_C99: invalid_mode = "c99"; goto default_cxx_warn;
1204 case STANDARD_GNU89: invalid_mode = "gnu89"; goto default_cxx_warn;
1205 case STANDARD_GNU99: invalid_mode = "gnu99"; goto default_cxx_warn;
1208 case STANDARD_CXX98: c_mode = _CXX; break;
1212 "warning: command line option \"-std=%s\" is not valid for C++\n",
1214 case STANDARD_DEFAULT:
1215 case STANDARD_GNUXX98: c_mode = _CXX | _GNUC; break;
1219 c_mode |= features_on;
1220 c_mode &= ~features_off;
1222 translation_unit_t *const unit = do_parsing(in, filename);
1224 /* prints the AST even if errors occurred */
1225 if (mode == PrintAst) {
1226 type_set_output(out);
1227 ast_set_output(out);
1231 if (error_count > 0) {
1232 /* parsing failed because of errors */
1233 fprintf(stderr, "%u error(s), %u warning(s)\n", error_count,
1235 result = EXIT_FAILURE;
1237 } else if (warning_count > 0) {
1238 fprintf(stderr, "%u warning(s)\n", warning_count);
1241 if (in == preprocessed_in) {
1242 int pp_result = pclose(preprocessed_in);
1243 if (pp_result != EXIT_SUCCESS) {
1248 if (mode == BenchmarkParser) {
1250 } else if (mode == PrintFluffy) {
1251 write_fluffy_decls(out, unit);
1253 } else if (mode == PrintCaml) {
1254 write_caml_decls(out, unit);
1258 translation_unit_to_firm(unit);
1260 if (mode == ParseOnly) {
1264 if (mode == CompileDump) {
1266 ident *id = new_id_from_str(dumpfunction);
1267 ir_graph *irg = NULL;
1268 int n_irgs = get_irp_n_irgs();
1269 for (int i = 0; i < n_irgs; ++i) {
1270 ir_graph *tirg = get_irp_irg(i);
1271 ident *irg_id = get_entity_ident(get_irg_entity(tirg));
1279 fprintf(stderr, "No graph for function '%s' found\n",
1284 dump_ir_block_graph_file(irg, out);
1289 gen_firm_finish(asm_out, filename, /*c_mode=*/1,
1290 have_const_functions);
1291 if (asm_out != out) {
1294 } else if (filetype == FILETYPE_PREPROCESSED_ASSEMBLER) {
1295 copy_file(asm_out, in);
1296 if (in == preprocessed_in) {
1297 int pp_result = pclose(preprocessed_in);
1298 if (pp_result != EXIT_SUCCESS) {
1302 if (asm_out != out) {
1307 if (mode == Compile)
1310 /* if we're here then we have preprocessed assembly */
1311 filename = asm_tempfile;
1312 filetype = FILETYPE_PREPROCESSED_ASSEMBLER;
1315 if (filetype == FILETYPE_PREPROCESSED_ASSEMBLER) {
1317 const char *filename_o;
1318 if (mode == CompileAssemble) {
1320 filename_o = outname;
1322 FILE *tempf = make_temp_file(temp, sizeof(temp), "cco");
1327 assemble(filename_o, filename);
1329 size_t len = strlen(filename_o) + 1;
1330 filename = obstack_copy(&file_obst, filename_o, len);
1331 filetype = FILETYPE_OBJECT;
1334 /* ok we're done here, process next file */
1335 file->name = filename;
1336 file->type = filetype;
1339 if (result != EXIT_SUCCESS)
1342 /* link program file */
1343 if (mode == CompileAssembleLink) {
1344 obstack_1grow(&ldflags_obst, '\0');
1345 const char *flags = obstack_finish(&ldflags_obst);
1347 /* construct commandline */
1348 obstack_printf(&file_obst, "%s", LINKER);
1349 for (file_list_entry_t *entry = files; entry != NULL;
1350 entry = entry->next) {
1351 if (entry->type != FILETYPE_OBJECT)
1354 add_flag(&file_obst, "%s", entry->name);
1357 add_flag(&file_obst, "-o");
1358 add_flag(&file_obst, outname);
1359 obstack_printf(&file_obst, "%s", flags);
1360 obstack_1grow(&file_obst, '\0');
1362 char *commandline = obstack_finish(&file_obst);
1367 int err = system(commandline);
1368 if (err != EXIT_SUCCESS) {
1369 fprintf(stderr, "linker reported an error\n");
1374 obstack_free(&cppflags_obst, NULL);
1375 obstack_free(&ldflags_obst, NULL);
1376 obstack_free(&file_obst, NULL);
1386 exit_symbol_table();