2 * This file is part of cparser.
3 * Copyright (C) 2007-2009 Matthias Braun <matze@braunis.de>
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
36 /* no eXecute on Win32 */
41 #define O_RDWR _O_RDWR
42 #define O_CREAT _O_CREAT
43 #define O_EXCL _O_EXCL
44 #define O_BINARY _O_BINARY
46 /* remap some names, we are not in the POSIX world */
47 #define access(fname, mode) _access(fname, mode)
48 #define mktemp(tmpl) _mktemp(tmpl)
49 #define open(fname, oflag, mode) _open(fname, oflag, mode)
50 #define fdopen(fd, mode) _fdopen(fd, mode)
51 #define popen(cmd, mode) _popen(cmd, mode)
52 #define pclose(file) _pclose(file)
53 #define unlink(filename) _unlink(filename)
60 #include <libfirm/firm.h>
61 #include <libfirm/be.h>
66 #include "type_hash.h"
70 #include "diagnostic.h"
71 #include "lang_features.h"
72 #include "driver/firm_opt.h"
73 #include "driver/firm_cmdline.h"
74 #include "driver/firm_timing.h"
75 #include "adt/error.h"
76 #include "wrappergen/write_fluffy.h"
77 #include "wrappergen/write_caml.h"
78 #include "wrappergen/write_jna.h"
86 #define PREPROCESSOR "gcc -E -m32 -U__STRICT_ANSI__"
88 #define PREPROCESSOR "cpp -m32 -U__STRICT_ANSI__"
93 #define LINKER "gcc -m32"
98 #define ASSEMBLER "gcc -m32 -c -xassembler"
100 #define ASSEMBLER "as --32"
104 /** The current c mode/dialect. */
105 unsigned int c_mode = _C89 | _ANSI | _C99 | _GNUC;
107 /** The 'machine size', 16, 32 or 64 bit, 32bit is the default. */
108 unsigned int machine_size = 32;
110 /** true if the char type is signed. */
111 bool char_is_signed = true;
113 /** true for strict language checking. */
114 bool strict_mode = false;
116 /** use builtins for some libc functions */
117 bool use_builtins = false;
119 /** we have extern function with const attribute. */
120 bool have_const_functions = false;
122 atomic_type_kind_t wchar_atomic_kind = ATOMIC_TYPE_INT;
124 /* to switch on printing of implicit casts */
125 extern bool print_implicit_casts;
127 /* to switch on printing of parenthesis to indicate operator precedence */
128 extern bool print_parenthesis;
131 static struct obstack cppflags_obst, ldflags_obst;
132 static char dep_target[1024];
133 static const char *outname;
135 typedef enum lang_standard_t {
136 STANDARD_DEFAULT, /* gnu99 (for C, GCC does gnu89) or gnu++98 (for C++) */
137 STANDARD_ANSI, /* c89 (for C) or c++98 (for C++) */
138 STANDARD_C89, /* ISO C90 (sic) */
139 STANDARD_C90, /* ISO C90 as modified in amendment 1 */
140 STANDARD_C99, /* ISO C99 */
141 STANDARD_GNU89, /* ISO C90 plus GNU extensions (including some C99) */
142 STANDARD_GNU99, /* ISO C99 plus GNU extensions */
143 STANDARD_CXX98, /* ISO C++ 1998 plus amendments */
144 STANDARD_GNUXX98 /* ISO C++ 1998 plus amendments and GNU extensions */
147 static lang_standard_t standard;
149 typedef struct file_list_entry_t file_list_entry_t;
151 typedef enum filetype_t {
154 FILETYPE_PREPROCESSED_C,
156 FILETYPE_PREPROCESSED_CXX,
158 FILETYPE_PREPROCESSED_ASSEMBLER,
164 struct file_list_entry_t {
165 const char *name; /**< filename or NULL for stdin */
167 file_list_entry_t *next;
170 static file_list_entry_t *temp_files;
172 #if defined(_DEBUG) || defined(FIRM_DEBUG)
174 * Debug printf implementation.
176 * @param fmt printf style format parameter
178 void dbg_printf(const char *fmt, ...)
182 if (firm_dump.debug_print) {
188 #endif /* defined(_DEBUG) || defined(FIRM_DEBUG) */
190 static void initialize_firm(void)
194 dump_consts_local(1);
195 dump_keepalive_edges(1);
198 static void get_output_name(char *buf, size_t buflen, const char *inputname,
201 if (inputname == NULL)
204 char const *const last_slash = strrchr(inputname, '/');
205 char const *const filename =
206 last_slash != NULL ? last_slash + 1 : inputname;
207 char const *const last_dot = strrchr(filename, '.');
208 char const *const name_end =
209 last_dot != NULL ? last_dot : strchr(filename, '\0');
211 int const len = snprintf(buf, buflen, "%.*s%s",
212 (int)(name_end - filename), filename, newext);
214 if (len < 0 || buflen <= (size_t)len)
216 if (buflen <= (size_t)len)
218 panic("filename too long");
221 #include "builtins.h"
223 static translation_unit_t *do_parsing(FILE *const in, const char *const input_name)
228 lexer_open_buffer(builtins, sizeof(builtins)-1, "<builtin>");
232 lexer_open_stream(in, input_name);
235 translation_unit_t *unit = finish_parsing();
239 static void lextest(FILE *in, const char *fname)
241 lexer_open_stream(in, fname);
244 lexer_next_preprocessing_token();
245 print_token(stdout, &lexer_token);
247 } while (lexer_token.type != T_EOF);
250 static void add_flag(struct obstack *obst, const char *format, ...)
255 va_start(ap, format);
259 vsnprintf(buf, sizeof(buf), format, ap);
262 obstack_1grow(obst, ' ');
264 obstack_1grow(obst, '"');
265 obstack_grow(obst, buf, len);
266 obstack_1grow(obst, '"');
268 /* escape stuff... */
269 for (char *c = buf; *c != '\0'; ++c) {
287 obstack_1grow(obst, '\\');
290 obstack_1grow(obst, *c);
297 static const char *type_to_string(type_t *type)
299 assert(type->kind == TYPE_ATOMIC);
300 return get_atomic_kind_name(type->atomic.akind);
303 static FILE *preprocess(const char *fname, filetype_t filetype)
305 static const char *common_flags = NULL;
307 if (common_flags == NULL) {
308 obstack_1grow(&cppflags_obst, '\0');
309 const char *flags = obstack_finish(&cppflags_obst);
311 /* setup default defines */
312 add_flag(&cppflags_obst, "-U__WCHAR_TYPE__");
313 add_flag(&cppflags_obst, "-D__WCHAR_TYPE__=%s", type_to_string(type_wchar_t));
314 add_flag(&cppflags_obst, "-U__SIZE_TYPE__");
315 add_flag(&cppflags_obst, "-D__SIZE_TYPE__=%s", type_to_string(type_size_t));
317 add_flag(&cppflags_obst, "-U__VERSION__");
318 add_flag(&cppflags_obst, "-D__VERSION__=\"%s\"", cparser_REVISION);
321 add_flag(&cppflags_obst, "-D__builtin_abort=abort");
322 add_flag(&cppflags_obst, "-D__builtin_abs=abs");
323 add_flag(&cppflags_obst, "-D__builtin_exit=exit");
324 add_flag(&cppflags_obst, "-D__builtin_malloc=malloc");
325 add_flag(&cppflags_obst, "-D__builtin_memcmp=memcmp");
326 add_flag(&cppflags_obst, "-D__builtin_memcpy=memcpy");
327 add_flag(&cppflags_obst, "-D__builtin_memset=memset");
328 add_flag(&cppflags_obst, "-D__builtin_strlen=strlen");
329 add_flag(&cppflags_obst, "-D__builtin_strcmp=strcmp");
330 add_flag(&cppflags_obst, "-D__builtin_strcpy=strcpy");
332 if (flags[0] != '\0') {
333 size_t len = strlen(flags);
334 obstack_1grow(&cppflags_obst, ' ');
335 obstack_grow(&cppflags_obst, flags, len);
337 obstack_1grow(&cppflags_obst, '\0');
338 common_flags = obstack_finish(&cppflags_obst);
341 assert(obstack_object_size(&cppflags_obst) == 0);
343 const char *preprocessor = getenv("CPARSER_PP");
344 if (preprocessor == NULL)
345 preprocessor = PREPROCESSOR;
347 obstack_printf(&cppflags_obst, "%s ", preprocessor);
350 add_flag(&cppflags_obst, "-std=c99");
353 add_flag(&cppflags_obst, "-std=c++98");
355 case FILETYPE_ASSEMBLER:
356 add_flag(&cppflags_obst, "-x");
357 add_flag(&cppflags_obst, "assembler-with-cpp");
362 obstack_printf(&cppflags_obst, "%s", common_flags);
364 /* handle dependency generation */
365 if (dep_target[0] != '\0') {
366 add_flag(&cppflags_obst, "-MF");
367 add_flag(&cppflags_obst, dep_target);
368 if (outname != NULL) {
369 add_flag(&cppflags_obst, "-MQ");
370 add_flag(&cppflags_obst, outname);
373 add_flag(&cppflags_obst, fname);
375 obstack_1grow(&cppflags_obst, '\0');
376 char *buf = obstack_finish(&cppflags_obst);
381 FILE *f = popen(buf, "r");
383 fprintf(stderr, "invoking preprocessor failed\n");
387 /* we don't really need that anymore */
388 obstack_free(&cppflags_obst, buf);
393 static void assemble(const char *out, const char *in)
397 const char *assembler = getenv("CPARSER_AS");
398 if (assembler == NULL)
399 assembler = ASSEMBLER;
401 snprintf(buf, sizeof(buf), "%s %s -o %s", assembler, in, out);
406 int err = system(buf);
408 fprintf(stderr, "assembler reported an error\n");
413 static void print_file_name(const char *file)
415 add_flag(&ldflags_obst, "-print-file-name=%s", file);
417 obstack_1grow(&ldflags_obst, '\0');
418 const char *flags = obstack_finish(&ldflags_obst);
420 /* construct commandline */
421 const char *linker = getenv("CPARSER_LINK");
424 obstack_printf(&ldflags_obst, "%s ", linker);
425 obstack_printf(&ldflags_obst, "%s", flags);
426 obstack_1grow(&ldflags_obst, '\0');
428 char *commandline = obstack_finish(&ldflags_obst);
433 int err = system(commandline);
434 if (err != EXIT_SUCCESS) {
435 fprintf(stderr, "linker reported an error\n");
440 static const char *try_dir(const char *dir)
444 if (access(dir, R_OK | W_OK | X_OK) == 0)
449 static const char *get_tempdir(void)
451 static const char *tmpdir = NULL;
457 tmpdir = try_dir(getenv("TMPDIR"));
459 tmpdir = try_dir(getenv("TMP"));
461 tmpdir = try_dir(getenv("TEMP"));
465 tmpdir = try_dir(P_tmpdir);
469 tmpdir = try_dir("/var/tmp");
471 tmpdir = try_dir("/usr/tmp");
473 tmpdir = try_dir("/tmp");
482 /* cheap and nasty mkstemp replacement */
483 static int mkstemp(char *templ)
486 return open(templ, O_RDWR|O_CREAT|O_EXCL|O_BINARY, 0600);
491 * an own version of tmpnam, which: writes in a buffer, emits no warnings
492 * during linking (like glibc/gnu ld do for tmpnam)...
494 static FILE *make_temp_file(char *buffer, size_t buflen, const char *prefix)
496 const char *tempdir = get_tempdir();
498 snprintf(buffer, buflen, "%s/%sXXXXXX", tempdir, prefix);
500 int fd = mkstemp(buffer);
502 fprintf(stderr, "couldn't create temporary file: %s\n",
506 FILE *out = fdopen(fd, "w");
508 fprintf(stderr, "couldn't create temporary file FILE*\n");
512 file_list_entry_t *entry = xmalloc(sizeof(*entry));
513 memset(entry, 0, sizeof(*entry));
515 size_t name_len = strlen(buffer) + 1;
516 char *name = malloc(name_len);
517 memcpy(name, buffer, name_len);
520 entry->next = temp_files;
526 static void free_temp_files(void)
528 file_list_entry_t *entry = temp_files;
529 file_list_entry_t *next;
530 for ( ; entry != NULL; entry = next) {
534 free((char*) entry->name);
541 * Do the necessary lowering for compound parameters.
543 void lower_compound_params(void)
545 lower_params_t params;
547 params.def_ptr_alignment = 4;
548 params.flags = LF_COMPOUND_RETURN | LF_RETURN_HIDDEN;
549 params.hidden_params = ADD_HIDDEN_ALWAYS_IN_FRONT;
550 params.find_pointer_type = NULL;
551 params.ret_compound_in_regs = NULL;
552 lower_calls_with_compounds(¶ms);
555 typedef enum compile_mode_t {
571 static void usage(const char *argv0)
573 fprintf(stderr, "Usage %s input [-o output] [-c]\n", argv0);
576 static void print_cparser_version(void)
578 printf("cparser (%s) using libFirm (%u.%u",
579 cparser_REVISION, ir_get_version_major(),
580 ir_get_version_minor());
582 const char *revision = ir_get_version_revision();
583 if (revision[0] != 0) {
585 fputs(revision, stdout);
588 const char *build = ir_get_version_build();
591 fputs(build, stdout);
594 puts("This is free software; see the source for copying conditions. There is NO\n"
595 "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n");
598 static void set_be_option(const char *arg)
600 int res = firm_be_option(arg);
605 static void set_option(const char *arg)
607 int res = firm_option(arg);
612 static void copy_file(FILE *dest, FILE *input)
616 while (!feof(input) && !ferror(dest)) {
617 size_t read = fread(buf, 1, sizeof(buf), input);
618 if (fwrite(buf, 1, read, dest) != read) {
619 perror("couldn't write output");
624 static inline bool streq(char const* a, char const* b)
626 return strcmp(a, b) == 0;
629 static inline bool strstart(char const* str, char const* start)
634 } while (*str++ == *start++);
638 static FILE *open_file(const char *filename)
640 if (streq(filename, "-")) {
644 FILE *in = fopen(filename, "r");
646 fprintf(stderr, "Couldn't open '%s': %s\n", filename,
654 static filetype_t get_filetype_from_string(const char *string)
656 if (streq(string, "c") || streq(string, "c-header"))
658 if (streq(string, "c++") || streq(string, "c++-header"))
660 if (streq(string, "assembler"))
661 return FILETYPE_PREPROCESSED_ASSEMBLER;
662 if (streq(string, "assembler-with-cpp"))
663 return FILETYPE_ASSEMBLER;
664 if (streq(string, "none"))
665 return FILETYPE_AUTODETECT;
667 return FILETYPE_UNKNOWN;
670 static void init_os_support(void)
672 /* OS option must be set to the backend */
673 switch (firm_opt.os_support) {
674 case OS_SUPPORT_MINGW:
675 set_be_option("ia32-gasmode=mingw");
676 wchar_atomic_kind = ATOMIC_TYPE_USHORT;
678 case OS_SUPPORT_LINUX:
679 set_be_option("ia32-gasmode=elf");
681 case OS_SUPPORT_MACHO:
682 set_be_option("ia32-gasmode=macho");
683 set_be_option("ia32-stackalign=4");
684 set_be_option("pic");
689 int main(int argc, char **argv)
693 const char *dumpfunction = NULL;
694 const char *print_file_name_file = NULL;
695 compile_mode_t mode = CompileAssembleLink;
697 int result = EXIT_SUCCESS;
698 char cpu_arch[16] = "ia32";
699 file_list_entry_t *files = NULL;
700 file_list_entry_t *last_file = NULL;
701 bool construct_dep_target = false;
702 bool do_timing = false;
703 struct obstack file_obst;
705 atexit(free_temp_files);
707 /* hack for now... */
708 if (strstr(argv[0], "pptest") != NULL) {
709 extern int pptest_main(int argc, char **argv);
710 return pptest_main(argc, argv);
713 obstack_init(&cppflags_obst);
714 obstack_init(&ldflags_obst);
715 obstack_init(&file_obst);
717 #define GET_ARG_AFTER(def, args) \
718 def = &arg[sizeof(args)-1]; \
719 if (def[0] == '\0') { \
722 fprintf(stderr, "error: expected argument after '" args "'\n"); \
723 argument_errors = true; \
727 if (def[0] == '-' && def[1] != '\0') { \
728 fprintf(stderr, "error: expected argument after '" args "'\n"); \
729 argument_errors = true; \
734 #define SINGLE_OPTION(ch) (option[0] == (ch) && option[1] == '\0')
736 /* early options parsing (find out optimisation level and OS) */
737 for (int i = 1; i < argc; ++i) {
738 const char *arg = argv[i];
742 const char *option = &arg[1];
743 if (option[0] == 'O') {
744 sscanf(&option[1], "%d", &opt_level);
746 if (strcmp(arg, "-fwin32") == 0) {
747 firm_opt.os_support = OS_SUPPORT_MINGW;
748 } else if (strcmp(arg, "-fmac") == 0) {
749 firm_opt.os_support = OS_SUPPORT_MACHO;
750 } else if (strcmp(arg, "-flinux") == 0) {
751 firm_opt.os_support = OS_SUPPORT_LINUX;
755 /* set target/os specific stuff */
758 /* apply optimisation level */
761 set_option("no-opt");
764 set_option("no-inline");
768 /* use_builtins = true; */
771 set_option("thread-jumps");
772 set_option("if-conversion");
775 set_option("strict-aliasing");
776 set_option("inline");
777 set_option("deconv");
778 set_be_option("omitfp");
782 /* parse rest of options */
783 standard = STANDARD_DEFAULT;
784 unsigned features_on = 0;
785 unsigned features_off = 0;
786 filetype_t forced_filetype = FILETYPE_AUTODETECT;
787 bool help_displayed = false;
788 bool argument_errors = false;
789 for (int i = 1; i < argc; ++i) {
790 const char *arg = argv[i];
791 if (arg[0] == '-' && arg[1] != '\0') {
793 const char *option = &arg[1];
794 if (option[0] == 'o') {
795 GET_ARG_AFTER(outname, "-o");
796 } else if (option[0] == 'g') {
797 set_be_option("debuginfo=stabs");
798 set_be_option("omitfp=no");
799 set_be_option("ia32-nooptcc=yes");
800 } else if (SINGLE_OPTION('c')) {
801 mode = CompileAssemble;
802 } else if (SINGLE_OPTION('E')) {
803 mode = PreprocessOnly;
804 } else if (SINGLE_OPTION('S')) {
806 } else if (option[0] == 'O') {
808 } else if (option[0] == 'I') {
810 GET_ARG_AFTER(opt, "-I");
811 add_flag(&cppflags_obst, "-I%s", opt);
812 } else if (option[0] == 'D') {
814 GET_ARG_AFTER(opt, "-D");
815 add_flag(&cppflags_obst, "-D%s", opt);
816 } else if (option[0] == 'U') {
818 GET_ARG_AFTER(opt, "-U");
819 add_flag(&cppflags_obst, "-U%s", opt);
820 } else if (option[0] == 'l') {
822 GET_ARG_AFTER(opt, "-l");
823 add_flag(&ldflags_obst, "-l%s", opt);
824 } else if (option[0] == 'L') {
826 GET_ARG_AFTER(opt, "-L");
827 add_flag(&ldflags_obst, "-L%s", opt);
828 } else if (SINGLE_OPTION('v')) {
830 } else if (SINGLE_OPTION('w')) {
831 memset(&warning, 0, sizeof(warning));
832 } else if (option[0] == 'x') {
834 GET_ARG_AFTER(opt, "-x");
835 forced_filetype = get_filetype_from_string(opt);
836 if (forced_filetype == FILETYPE_UNKNOWN) {
837 fprintf(stderr, "Unknown language '%s'\n", opt);
838 argument_errors = true;
840 } else if (streq(option, "M")) {
841 mode = PreprocessOnly;
842 add_flag(&cppflags_obst, "-M");
843 } else if (streq(option, "MMD") ||
844 streq(option, "MD")) {
845 construct_dep_target = true;
846 add_flag(&cppflags_obst, "-%s", option);
847 } else if (streq(option, "MM") ||
848 streq(option, "MP")) {
849 add_flag(&cppflags_obst, "-%s", option);
850 } else if (streq(option, "MT") ||
851 streq(option, "MQ") ||
852 streq(option, "MF")) {
854 GET_ARG_AFTER(opt, "-MT");
855 add_flag(&cppflags_obst, "-%s", option);
856 add_flag(&cppflags_obst, "%s", opt);
857 } else if (streq(option, "include")) {
859 GET_ARG_AFTER(opt, "-include");
860 add_flag(&cppflags_obst, "-include");
861 add_flag(&cppflags_obst, "%s", opt);
862 } else if (streq(option, "isystem")) {
864 GET_ARG_AFTER(opt, "-isystem");
865 add_flag(&cppflags_obst, "-isystem");
866 add_flag(&cppflags_obst, "%s", opt);
867 } else if (streq(option, "nostdinc")
868 || streq(option, "trigraphs")) {
869 /* pass these through to the preprocessor */
870 add_flag(&cppflags_obst, "%s", arg);
871 } else if (streq(option, "pipe")) {
872 /* here for gcc compatibility */
873 } else if (option[0] == 'f') {
874 char const *orig_opt;
875 GET_ARG_AFTER(orig_opt, "-f");
877 if (strstart(orig_opt, "align-loops=") ||
878 strstart(orig_opt, "align-jumps=") ||
879 strstart(orig_opt, "align-functions=")) {
880 fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
881 } else if (strstart(orig_opt, "input-charset=")) {
882 char const* const encoding = strchr(orig_opt, '=') + 1;
883 select_input_encoding(encoding);
884 } else if (streq(orig_opt, "verbose-asm")) {
885 /* ignore: we always print verbose assembler */
887 char const *opt = orig_opt;
888 bool truth_value = true;
889 if (opt[0] == 'n' && opt[1] == 'o' && opt[2] == '-') {
894 if (streq(opt, "builtins")) {
895 use_builtins = truth_value;
896 } else if (streq(opt, "dollars-in-identifiers")) {
897 allow_dollar_in_symbol = truth_value;
898 } else if (streq(opt, "omit-frame-pointer")) {
899 set_be_option(truth_value ? "omitfp" : "omitfp=no");
900 } else if (streq(opt, "short-wchar")) {
901 wchar_atomic_kind = truth_value ? ATOMIC_TYPE_USHORT
903 } else if (streq(opt, "signed-char")) {
904 char_is_signed = truth_value;
905 } else if (streq(opt, "strength-reduce")) {
906 firm_option(truth_value ? "strength-red" : "no-strength-red");
907 } else if (streq(opt, "syntax-only")) {
908 mode = truth_value ? ParseOnly : CompileAssembleLink;
909 } else if (streq(opt, "unsigned-char")) {
910 char_is_signed = !truth_value;
911 } else if (streq(opt, "fast-math") ||
912 streq(opt, "jump-tables") ||
913 streq(opt, "expensive-optimizations") ||
914 streq(opt, "common") ||
916 streq(opt, "align-loops") ||
917 streq(opt, "align-jumps") ||
918 streq(opt, "align-functions")) {
919 fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
921 int res = firm_option(orig_opt);
923 fprintf(stderr, "error: unknown Firm option '-f%s'\n",
925 argument_errors = true;
927 } else if (res == -1) {
928 help_displayed = true;
932 } else if (option[0] == 'b') {
934 GET_ARG_AFTER(opt, "-b");
935 int res = firm_be_option(opt);
937 fprintf(stderr, "error: unknown Firm backend option '-b %s'\n",
939 argument_errors = true;
940 } else if (res == -1) {
941 help_displayed = true;
942 } else if (strstart(opt, "isa=")) {
943 strncpy(cpu_arch, opt, sizeof(cpu_arch));
945 } else if (option[0] == 'W') {
946 if (strstart(option + 1, "p,")) {
947 // pass options directly to the preprocessor
949 GET_ARG_AFTER(opt, "-Wp,");
950 add_flag(&cppflags_obst, "-Wp,%s", opt);
951 } else if (strstart(option + 1, "l,")) {
952 // pass options directly to the linker
954 GET_ARG_AFTER(opt, "-Wl,");
955 add_flag(&ldflags_obst, "-Wl,%s", opt);
956 } else if (streq(option + 1, "no-trigraphs")
957 || streq(option + 1, "undef")) {
958 add_flag(&cppflags_obst, "%s", arg);
960 set_warning_opt(&option[1]);
962 } else if (option[0] == 'm') {
967 GET_ARG_AFTER(opt, "-m");
968 if (strstart(opt, "arch=")) {
969 GET_ARG_AFTER(opt, "-march=");
970 snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
971 int res = firm_be_option(arch_opt);
973 fprintf(stderr, "Unknown architecture '%s'\n", arch_opt);
974 argument_errors = true;
976 snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
977 int res = firm_be_option(arch_opt);
979 argument_errors = true;
981 } else if (strstart(opt, "tune=")) {
982 GET_ARG_AFTER(opt, "-mtune=");
983 snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
984 int res = firm_be_option(arch_opt);
986 argument_errors = true;
987 } else if (strstart(opt, "cpu=")) {
988 GET_ARG_AFTER(opt, "-mcpu=");
989 snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
990 int res = firm_be_option(arch_opt);
992 argument_errors = true;
993 } else if (strstart(opt, "fpmath=")) {
994 GET_ARG_AFTER(opt, "-mfpmath=");
995 if (streq(opt, "387"))
997 else if (streq(opt, "sse"))
1000 fprintf(stderr, "error: option -mfpumath supports only 387 or sse\n");
1001 argument_errors = true;
1003 if (!argument_errors) {
1004 snprintf(arch_opt, sizeof(arch_opt), "%s-fpunit=%s", cpu_arch, opt);
1005 int res = firm_be_option(arch_opt);
1007 argument_errors = true;
1009 } else if (strstart(opt, "preferred-stack-boundary=")) {
1010 GET_ARG_AFTER(opt, "-mpreferred-stack-boundary=");
1011 snprintf(arch_opt, sizeof(arch_opt), "%s-stackalign=%s", cpu_arch, opt);
1012 int res = firm_be_option(arch_opt);
1014 argument_errors = true;
1015 } else if (streq(opt, "omit-leaf-frame-pointer")) {
1016 set_be_option("omitleaffp=1");
1017 } else if (streq(opt, "no-omit-leaf-frame-pointer")) {
1018 set_be_option("omitleaffp=0");
1019 } else if (streq(opt, "rtd")) {
1020 default_calling_convention = CC_STDCALL;
1023 long int value = strtol(opt, &endptr, 10);
1024 if (*endptr != '\0') {
1025 fprintf(stderr, "error: wrong option '-m %s'\n", opt);
1026 argument_errors = true;
1028 if (value != 16 && value != 32 && value != 64) {
1029 fprintf(stderr, "error: option -m supports only 16, 32 or 64\n");
1030 argument_errors = true;
1032 machine_size = (unsigned int)value;
1035 } else if (streq(option, "pg")) {
1036 set_be_option("gprof");
1037 add_flag(&ldflags_obst, "-pg");
1038 } else if (streq(option, "pedantic") ||
1039 streq(option, "ansi")) {
1040 fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg);
1041 } else if (streq(option, "shared")) {
1042 add_flag(&ldflags_obst, "-shared");
1043 } else if (strstart(option, "std=")) {
1044 const char *const o = &option[4];
1046 streq(o, "c++") ? STANDARD_CXX98 :
1047 streq(o, "c++98") ? STANDARD_CXX98 :
1048 streq(o, "c89") ? STANDARD_C89 :
1049 streq(o, "c99") ? STANDARD_C99 :
1050 streq(o, "c9x") ? STANDARD_C99 : // deprecated
1051 streq(o, "gnu++98") ? STANDARD_GNUXX98 :
1052 streq(o, "gnu89") ? STANDARD_GNU89 :
1053 streq(o, "gnu99") ? STANDARD_GNU99 :
1054 streq(o, "gnu9x") ? STANDARD_GNU99 : // deprecated
1055 streq(o, "iso9899:1990") ? STANDARD_C89 :
1056 streq(o, "iso9899:199409") ? STANDARD_C90 :
1057 streq(o, "iso9899:1999") ? STANDARD_C99 :
1058 streq(o, "iso9899:199x") ? STANDARD_C99 : // deprecated
1059 (fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg), standard);
1060 } else if (streq(option, "version")) {
1061 print_cparser_version();
1062 } else if (strstart(option, "print-file-name=")) {
1063 GET_ARG_AFTER(print_file_name_file, "-print-file-name=");
1064 } else if (option[0] == '-') {
1065 /* double dash option */
1067 if (streq(option, "gcc")) {
1068 features_on |= _GNUC;
1069 features_off &= ~_GNUC;
1070 } else if (streq(option, "no-gcc")) {
1071 features_on &= ~_GNUC;
1072 features_off |= _GNUC;
1073 } else if (streq(option, "ms")) {
1075 features_off &= ~_MS;
1076 } else if (streq(option, "no-ms")) {
1077 features_on &= ~_MS;
1078 features_off |= _MS;
1079 } else if (streq(option, "strict")) {
1081 } else if (streq(option, "lextest")) {
1083 } else if (streq(option, "benchmark")) {
1084 mode = BenchmarkParser;
1085 } else if (streq(option, "print-ast")) {
1087 } else if (streq(option, "print-implicit-cast")) {
1088 print_implicit_casts = true;
1089 } else if (streq(option, "print-parenthesis")) {
1090 print_parenthesis = true;
1091 } else if (streq(option, "print-fluffy")) {
1093 } else if (streq(option, "print-caml")) {
1095 } else if (streq(option, "print-jna")) {
1097 } else if (streq(option, "time")) {
1099 } else if (streq(option, "version")) {
1100 print_cparser_version();
1102 } else if (streq(option, "dump-function")) {
1105 fprintf(stderr, "error: "
1106 "expected argument after '--dump-function'\n");
1107 argument_errors = true;
1110 dumpfunction = argv[i];
1112 } else if (streq(option, "export-ir")) {
1113 mode = CompileExportIR;
1115 fprintf(stderr, "error: unknown argument '%s'\n", arg);
1116 argument_errors = true;
1119 fprintf(stderr, "error: unknown argument '%s'\n", arg);
1120 argument_errors = true;
1123 filetype_t type = forced_filetype;
1124 if (type == FILETYPE_AUTODETECT) {
1125 if (streq(arg, "-")) {
1126 /* - implicitly means C source file */
1129 const char *suffix = strrchr(arg, '.');
1130 /* Ensure there is at least one char before the suffix */
1131 if (suffix != NULL && suffix != arg) {
1134 streq(suffix, "S") ? FILETYPE_ASSEMBLER :
1135 streq(suffix, "a") ? FILETYPE_OBJECT :
1136 streq(suffix, "c") ? FILETYPE_C :
1137 streq(suffix, "cc") ? FILETYPE_CXX :
1138 streq(suffix, "cpp") ? FILETYPE_CXX :
1139 streq(suffix, "cxx") ? FILETYPE_CXX :
1140 streq(suffix, "h") ? FILETYPE_C :
1141 streq(suffix, "ir") ? FILETYPE_IR :
1142 streq(suffix, "o") ? FILETYPE_OBJECT :
1143 streq(suffix, "s") ? FILETYPE_PREPROCESSED_ASSEMBLER :
1144 streq(suffix, "so") ? FILETYPE_OBJECT :
1145 FILETYPE_AUTODETECT;
1149 if (type == FILETYPE_AUTODETECT) {
1150 fprintf(stderr, "'%s': file format not recognized\n", arg);
1155 file_list_entry_t *entry
1156 = obstack_alloc(&file_obst, sizeof(entry[0]));
1157 memset(entry, 0, sizeof(entry[0]));
1161 if (last_file != NULL) {
1162 last_file->next = entry;
1170 if (print_file_name_file != NULL) {
1171 print_file_name(print_file_name_file);
1175 if (files == NULL) {
1176 fprintf(stderr, "error: no input files specified\n");
1177 argument_errors = true;
1180 if (help_displayed) {
1181 return !argument_errors;
1183 if (argument_errors) {
1188 /* we do the lowering in ast2firm */
1189 firm_opt.lower_bitfields = FALSE;
1191 /* set the c_mode here, types depends on it */
1192 c_mode |= features_on;
1193 c_mode &= ~features_off;
1196 init_symbol_table();
1209 if (construct_dep_target) {
1210 if (outname != 0 && strlen(outname) >= 2) {
1211 get_output_name(dep_target, sizeof(dep_target), outname, ".d");
1213 get_output_name(dep_target, sizeof(dep_target), files->name, ".d");
1216 dep_target[0] = '\0';
1219 char outnamebuf[4096];
1220 if (outname == NULL) {
1221 const char *filename = files->name;
1224 case BenchmarkParser:
1230 case PreprocessOnly:
1235 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".s");
1236 outname = outnamebuf;
1238 case CompileAssemble:
1239 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".o");
1240 outname = outnamebuf;
1243 get_output_name(outnamebuf, sizeof(outnamebuf), dumpfunction,
1245 outname = outnamebuf;
1247 case CompileExportIR:
1248 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".ir");
1249 outname = outnamebuf;
1251 case CompileAssembleLink:
1261 assert(outname != NULL);
1264 if (streq(outname, "-")) {
1267 out = fopen(outname, "w");
1269 fprintf(stderr, "Couldn't open '%s' for writing: %s\n", outname,
1275 file_list_entry_t *file;
1276 for (file = files; file != NULL; file = file->next) {
1277 char asm_tempfile[1024];
1278 const char *filename = file->name;
1279 filetype_t filetype = file->type;
1281 if (filetype == FILETYPE_OBJECT)
1285 if (mode == LexTest) {
1287 in = open_file(filename);
1288 lextest(in, filename);
1293 FILE *preprocessed_in = NULL;
1294 filetype_t next_filetype = filetype;
1297 next_filetype = FILETYPE_PREPROCESSED_C;
1300 next_filetype = FILETYPE_PREPROCESSED_CXX;
1302 case FILETYPE_ASSEMBLER:
1303 next_filetype = FILETYPE_PREPROCESSED_ASSEMBLER;
1306 /* no support for input on FILE* yet */
1308 panic("internal compiler error: in for preprocessor != NULL");
1310 preprocessed_in = preprocess(filename, filetype);
1311 if (mode == PreprocessOnly) {
1312 copy_file(out, preprocessed_in);
1313 int result = pclose(preprocessed_in);
1315 /* remove output file in case of error */
1316 if (out != stdout && result != EXIT_SUCCESS) {
1322 in = preprocessed_in;
1323 filetype = next_filetype;
1331 if (mode == Compile) {
1334 asm_out = make_temp_file(asm_tempfile, sizeof(asm_tempfile), "ccs");
1338 in = open_file(filename);
1340 /* preprocess and compile */
1341 if (filetype == FILETYPE_PREPROCESSED_C) {
1342 char const* invalid_mode;
1345 case STANDARD_C89: c_mode = _C89; break;
1346 /* TODO determine difference between these two */
1347 case STANDARD_C90: c_mode = _C89; break;
1348 case STANDARD_C99: c_mode = _C89 | _C99; break;
1349 case STANDARD_GNU89: c_mode = _C89 | _GNUC; break;
1353 "warning: command line option \"-std=%s\" is not valid for C\n",
1356 case STANDARD_DEFAULT:
1357 case STANDARD_GNU99: c_mode = _C89 | _C99 | _GNUC; break;
1359 case STANDARD_CXX98: invalid_mode = "c++98"; goto default_c_warn;
1360 case STANDARD_GNUXX98: invalid_mode = "gnu98"; goto default_c_warn;
1363 } else if (filetype == FILETYPE_PREPROCESSED_CXX) {
1364 char const* invalid_mode;
1366 case STANDARD_C89: invalid_mode = "c89"; goto default_cxx_warn;
1367 case STANDARD_C90: invalid_mode = "c90"; goto default_cxx_warn;
1368 case STANDARD_C99: invalid_mode = "c99"; goto default_cxx_warn;
1369 case STANDARD_GNU89: invalid_mode = "gnu89"; goto default_cxx_warn;
1370 case STANDARD_GNU99: invalid_mode = "gnu99"; goto default_cxx_warn;
1373 case STANDARD_CXX98: c_mode = _CXX; break;
1377 "warning: command line option \"-std=%s\" is not valid for C++\n",
1379 case STANDARD_DEFAULT:
1380 case STANDARD_GNUXX98: c_mode = _CXX | _GNUC; break;
1384 c_mode |= features_on;
1385 c_mode &= ~features_off;
1387 /* do the actual parsing */
1388 ir_timer_t *t_parsing = ir_timer_new();
1389 timer_register(t_parsing, "Frontend: Parsing");
1390 timer_push(t_parsing);
1392 translation_unit_t *const unit = do_parsing(in, filename);
1393 timer_pop(t_parsing);
1395 /* prints the AST even if errors occurred */
1396 if (mode == PrintAst) {
1401 if (error_count > 0) {
1402 /* parsing failed because of errors */
1403 fprintf(stderr, "%u error(s), %u warning(s)\n", error_count,
1405 result = EXIT_FAILURE;
1407 } else if (warning_count > 0) {
1408 fprintf(stderr, "%u warning(s)\n", warning_count);
1411 if (in == preprocessed_in) {
1412 int pp_result = pclose(preprocessed_in);
1413 if (pp_result != EXIT_SUCCESS) {
1414 /* remove output file */
1421 if (mode == BenchmarkParser) {
1423 } else if (mode == PrintFluffy) {
1424 write_fluffy_decls(out, unit);
1426 } else if (mode == PrintCaml) {
1427 write_caml_decls(out, unit);
1429 } else if (mode == PrintJna) {
1430 write_jna_decls(out, unit);
1434 /* build the firm graph */
1435 ir_timer_t *t_construct = ir_timer_new();
1436 timer_register(t_construct, "Frontend: Graph construction");
1437 timer_push(t_construct);
1438 translation_unit_to_firm(unit);
1439 timer_pop(t_construct);
1442 if (mode == ParseOnly) {
1446 if (mode == CompileDump) {
1448 ident *id = new_id_from_str(dumpfunction);
1449 ir_graph *irg = NULL;
1450 int n_irgs = get_irp_n_irgs();
1451 for (int i = 0; i < n_irgs; ++i) {
1452 ir_graph *tirg = get_irp_irg(i);
1453 ident *irg_id = get_entity_ident(get_irg_entity(tirg));
1461 fprintf(stderr, "No graph for function '%s' found\n",
1466 dump_ir_block_graph_file(irg, out);
1471 if (mode == CompileExportIR) {
1477 gen_firm_finish(asm_out, filename, /*c_mode=*/1,
1478 have_const_functions);
1479 if (asm_out != out) {
1482 } else if (filetype == FILETYPE_IR) {
1484 ir_import(filename);
1486 } else if (filetype == FILETYPE_PREPROCESSED_ASSEMBLER) {
1487 copy_file(asm_out, in);
1488 if (in == preprocessed_in) {
1489 int pp_result = pclose(preprocessed_in);
1490 if (pp_result != EXIT_SUCCESS) {
1491 /* remove output in error case */
1497 if (asm_out != out) {
1502 if (mode == Compile)
1505 /* if we're here then we have preprocessed assembly */
1506 filename = asm_tempfile;
1507 filetype = FILETYPE_PREPROCESSED_ASSEMBLER;
1510 if (filetype == FILETYPE_PREPROCESSED_ASSEMBLER) {
1512 const char *filename_o;
1513 if (mode == CompileAssemble) {
1515 filename_o = outname;
1517 FILE *tempf = make_temp_file(temp, sizeof(temp), "cco");
1522 assemble(filename_o, filename);
1524 size_t len = strlen(filename_o) + 1;
1525 filename = obstack_copy(&file_obst, filename_o, len);
1526 filetype = FILETYPE_OBJECT;
1529 /* ok we're done here, process next file */
1530 file->name = filename;
1531 file->type = filetype;
1534 if (result != EXIT_SUCCESS) {
1540 /* link program file */
1541 if (mode == CompileAssembleLink) {
1542 obstack_1grow(&ldflags_obst, '\0');
1543 const char *flags = obstack_finish(&ldflags_obst);
1545 /* construct commandline */
1546 const char *linker = getenv("CPARSER_LINK");
1549 obstack_printf(&file_obst, "%s", linker);
1550 for (file_list_entry_t *entry = files; entry != NULL;
1551 entry = entry->next) {
1552 if (entry->type != FILETYPE_OBJECT)
1555 add_flag(&file_obst, "%s", entry->name);
1558 add_flag(&file_obst, "-o");
1559 add_flag(&file_obst, outname);
1560 obstack_printf(&file_obst, "%s", flags);
1561 obstack_1grow(&file_obst, '\0');
1563 char *commandline = obstack_finish(&file_obst);
1568 int err = system(commandline);
1569 if (err != EXIT_SUCCESS) {
1570 fprintf(stderr, "linker reported an error\n");
1578 obstack_free(&cppflags_obst, NULL);
1579 obstack_free(&ldflags_obst, NULL);
1580 obstack_free(&file_obst, NULL);
1590 exit_symbol_table();