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_timing.h"
74 #include "driver/firm_machine.h"
75 #include "adt/error.h"
76 #include "adt/strutil.h"
77 #include "wrappergen/write_fluffy.h"
78 #include "wrappergen/write_jna.h"
87 #define PREPROCESSOR "gcc -E -U__STRICT_ANSI__"
89 #define PREPROCESSOR "cpp -U__STRICT_ANSI__"
98 #define ASSEMBLER "gcc -c -xassembler"
101 unsigned int c_mode = _C89 | _ANSI | _C99 | _GNUC;
102 bool byte_order_big_endian = false;
103 bool strict_mode = false;
104 bool enable_main_collect2_hack = false;
105 bool freestanding = false;
106 unsigned architecture_modulo_shift = 0;
108 static bool char_is_signed = true;
109 static atomic_type_kind_t wchar_atomic_kind = ATOMIC_TYPE_INT;
111 static machine_triple_t *target_machine;
112 static const char *target_triple;
114 static struct obstack cppflags_obst;
115 static struct obstack ldflags_obst;
116 static struct obstack asflags_obst;
117 static char dep_target[1024];
118 static const char *outname;
119 static bool define_intmax_types;
120 static const char *input_encoding;
122 typedef enum lang_standard_t {
123 STANDARD_DEFAULT, /* gnu99 (for C, GCC does gnu89) or gnu++98 (for C++) */
124 STANDARD_ANSI, /* c89 (for C) or c++98 (for C++) */
125 STANDARD_C89, /* ISO C90 (sic) */
126 STANDARD_C90, /* ISO C90 as modified in amendment 1 */
127 STANDARD_C99, /* ISO C99 */
128 STANDARD_GNU89, /* ISO C90 plus GNU extensions (including some C99) */
129 STANDARD_GNU99, /* ISO C99 plus GNU extensions */
130 STANDARD_CXX98, /* ISO C++ 1998 plus amendments */
131 STANDARD_GNUXX98 /* ISO C++ 1998 plus amendments and GNU extensions */
134 static lang_standard_t standard;
136 typedef struct file_list_entry_t file_list_entry_t;
138 typedef enum filetype_t {
141 FILETYPE_PREPROCESSED_C,
143 FILETYPE_PREPROCESSED_CXX,
145 FILETYPE_PREPROCESSED_ASSEMBLER,
151 struct file_list_entry_t {
152 const char *name; /**< filename or NULL for stdin */
154 file_list_entry_t *next;
157 static file_list_entry_t *temp_files;
159 static void get_output_name(char *buf, size_t buflen, const char *inputname,
162 if (inputname == NULL)
165 char const *const last_slash = strrchr(inputname, '/');
166 char const *const filename =
167 last_slash != NULL ? last_slash + 1 : inputname;
168 char const *const last_dot = strrchr(filename, '.');
169 char const *const name_end =
170 last_dot != NULL ? last_dot : strchr(filename, '\0');
172 int const len = snprintf(buf, buflen, "%.*s%s",
173 (int)(name_end - filename), filename, newext);
175 if (len < 0 || buflen <= (size_t)len)
177 if (buflen <= (size_t)len)
179 panic("filename too long");
182 static translation_unit_t *do_parsing(FILE *const in, const char *const input_name)
186 input_t *input = input_from_stream(in, input_encoding);
187 lexer_switch_input(input, input_name);
189 translation_unit_t *unit = finish_parsing();
195 static void lextest(FILE *in, const char *fname)
197 input_t *input = input_from_stream(in, input_encoding);
198 lexer_switch_input(input, fname);
201 lexer_next_preprocessing_token();
202 print_token(stdout, &lexer_token);
204 } while (lexer_token.kind != T_EOF);
208 static void add_flag(struct obstack *obst, const char *format, ...)
213 va_start(ap, format);
217 vsnprintf(buf, sizeof(buf), format, ap);
220 obstack_1grow(obst, ' ');
222 obstack_1grow(obst, '"');
223 obstack_grow(obst, buf, len);
224 obstack_1grow(obst, '"');
226 /* escape stuff... */
227 for (char *c = buf; *c != '\0'; ++c) {
245 obstack_1grow(obst, '\\');
248 obstack_1grow(obst, *c);
255 static const char *type_to_string(type_t *type)
257 assert(type->kind == TYPE_ATOMIC);
258 return get_atomic_kind_name(type->atomic.akind);
261 static FILE *preprocess(const char *fname, filetype_t filetype)
263 static const char *common_flags = NULL;
265 if (common_flags == NULL) {
266 obstack_1grow(&cppflags_obst, '\0');
267 const char *flags = obstack_finish(&cppflags_obst);
269 /* setup default defines */
270 add_flag(&cppflags_obst, "-U__WCHAR_TYPE__");
271 add_flag(&cppflags_obst, "-D__WCHAR_TYPE__=%s", type_to_string(type_wchar_t));
272 add_flag(&cppflags_obst, "-U__SIZE_TYPE__");
273 add_flag(&cppflags_obst, "-D__SIZE_TYPE__=%s", type_to_string(type_size_t));
275 add_flag(&cppflags_obst, "-U__VERSION__");
276 add_flag(&cppflags_obst, "-D__VERSION__=\"%s\"", cparser_REVISION);
278 if (define_intmax_types) {
279 add_flag(&cppflags_obst, "-U__INTMAX_TYPE__");
280 add_flag(&cppflags_obst, "-D__INTMAX_TYPE__=%s", type_to_string(type_intmax_t));
281 add_flag(&cppflags_obst, "-U__UINTMAX_TYPE__");
282 add_flag(&cppflags_obst, "-D__UINTMAX_TYPE__=%s", type_to_string(type_uintmax_t));
285 if (flags[0] != '\0') {
286 size_t len = strlen(flags);
287 obstack_1grow(&cppflags_obst, ' ');
288 obstack_grow(&cppflags_obst, flags, len);
290 obstack_1grow(&cppflags_obst, '\0');
291 common_flags = obstack_finish(&cppflags_obst);
294 assert(obstack_object_size(&cppflags_obst) == 0);
296 const char *preprocessor = getenv("CPARSER_PP");
297 if (preprocessor != NULL) {
298 obstack_printf(&cppflags_obst, "%s ", preprocessor);
300 if (target_triple != NULL)
301 obstack_printf(&cppflags_obst, "%s-", target_triple);
302 obstack_printf(&cppflags_obst, PREPROCESSOR);
307 add_flag(&cppflags_obst, "-std=c99");
310 add_flag(&cppflags_obst, "-std=c++98");
312 case FILETYPE_ASSEMBLER:
313 add_flag(&cppflags_obst, "-x");
314 add_flag(&cppflags_obst, "assembler-with-cpp");
319 obstack_printf(&cppflags_obst, "%s", common_flags);
321 /* handle dependency generation */
322 if (dep_target[0] != '\0') {
323 add_flag(&cppflags_obst, "-MF");
324 add_flag(&cppflags_obst, dep_target);
325 if (outname != NULL) {
326 add_flag(&cppflags_obst, "-MQ");
327 add_flag(&cppflags_obst, outname);
330 add_flag(&cppflags_obst, fname);
331 obstack_1grow(&cppflags_obst, '\0');
333 char *commandline = obstack_finish(&cppflags_obst);
337 FILE *f = popen(commandline, "r");
339 fprintf(stderr, "invoking preprocessor failed\n");
342 /* we do not really need that anymore */
343 obstack_free(&cppflags_obst, commandline);
348 static void assemble(const char *out, const char *in)
350 obstack_1grow(&asflags_obst, '\0');
351 const char *flags = obstack_finish(&asflags_obst);
353 const char *assembler = getenv("CPARSER_AS");
354 if (assembler != NULL) {
355 obstack_printf(&asflags_obst, "%s", assembler);
357 if (target_triple != NULL)
358 obstack_printf(&asflags_obst, "%s-", target_triple);
359 obstack_printf(&asflags_obst, "%s", ASSEMBLER);
361 if (flags[0] != '\0')
362 obstack_printf(&asflags_obst, " %s", flags);
364 obstack_printf(&asflags_obst, " %s -o %s", in, out);
365 obstack_1grow(&asflags_obst, '\0');
367 char *commandline = obstack_finish(&asflags_obst);
371 int err = system(commandline);
372 if (err != EXIT_SUCCESS) {
373 fprintf(stderr, "assembler reported an error\n");
376 obstack_free(&asflags_obst, commandline);
379 static void print_file_name(const char *file)
381 add_flag(&ldflags_obst, "-print-file-name=%s", file);
383 obstack_1grow(&ldflags_obst, '\0');
384 const char *flags = obstack_finish(&ldflags_obst);
386 /* construct commandline */
387 const char *linker = getenv("CPARSER_LINK");
388 if (linker != NULL) {
389 obstack_printf(&ldflags_obst, "%s ", linker);
391 if (target_triple != NULL)
392 obstack_printf(&ldflags_obst, "%s-", target_triple);
393 obstack_printf(&ldflags_obst, "%s ", LINKER);
395 obstack_printf(&ldflags_obst, "%s ", linker);
396 obstack_printf(&ldflags_obst, "%s", flags);
397 obstack_1grow(&ldflags_obst, '\0');
399 char *commandline = obstack_finish(&ldflags_obst);
403 int err = system(commandline);
404 if (err != EXIT_SUCCESS) {
405 fprintf(stderr, "linker reported an error\n");
408 obstack_free(&ldflags_obst, commandline);
411 static const char *try_dir(const char *dir)
415 if (access(dir, R_OK | W_OK | X_OK) == 0)
420 static const char *get_tempdir(void)
422 static const char *tmpdir = NULL;
428 tmpdir = try_dir(getenv("TMPDIR"));
430 tmpdir = try_dir(getenv("TMP"));
432 tmpdir = try_dir(getenv("TEMP"));
436 tmpdir = try_dir(P_tmpdir);
440 tmpdir = try_dir("/var/tmp");
442 tmpdir = try_dir("/usr/tmp");
444 tmpdir = try_dir("/tmp");
453 /* cheap and nasty mkstemp replacement */
454 static int mkstemp(char *templ)
457 return open(templ, O_RDWR|O_CREAT|O_EXCL|O_BINARY, 0600);
462 * an own version of tmpnam, which: writes in a buffer, emits no warnings
463 * during linking (like glibc/gnu ld do for tmpnam)...
465 static FILE *make_temp_file(char *buffer, size_t buflen, const char *prefix)
467 const char *tempdir = get_tempdir();
469 snprintf(buffer, buflen, "%s/%sXXXXXX", tempdir, prefix);
471 int fd = mkstemp(buffer);
473 fprintf(stderr, "could not create temporary file: %s\n",
477 FILE *out = fdopen(fd, "w");
479 fprintf(stderr, "could not create temporary file FILE*\n");
483 file_list_entry_t *entry = xmalloc(sizeof(*entry));
484 memset(entry, 0, sizeof(*entry));
486 size_t name_len = strlen(buffer) + 1;
487 char *name = malloc(name_len);
488 memcpy(name, buffer, name_len);
491 entry->next = temp_files;
497 static void free_temp_files(void)
499 file_list_entry_t *entry = temp_files;
500 file_list_entry_t *next;
501 for ( ; entry != NULL; entry = next) {
505 free((char*) entry->name);
511 typedef enum compile_mode_t {
526 static void usage(const char *argv0)
528 fprintf(stderr, "Usage %s [options] input [-o output]\n", argv0);
531 static void print_cparser_version(void)
533 printf("cparser (%s) using libFirm (%u.%u",
534 cparser_REVISION, ir_get_version_major(),
535 ir_get_version_minor());
537 const char *revision = ir_get_version_revision();
538 if (revision[0] != 0) {
540 fputs(revision, stdout);
543 const char *build = ir_get_version_build();
546 fputs(build, stdout);
549 puts("This is free software; see the source for copying conditions. There is NO\n"
550 "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n");
553 static void print_cparser_version_short(void)
555 puts(cparser_REVISION);
558 static void print_help_basic(const char *argv0)
562 put_help("--help", "Display this information");
563 put_help("--version", "Display compiler version");
564 put_help("--help-parser", "Display information about parser options");
565 put_help("--help-warnings", "Display information about warning options");
566 put_help("--help-codegen", "Display information about code-generation options");
567 put_help("--help-optimization", "Display information about optimization options");
568 put_help("--help-linker", "Display information about linker options");
569 put_help("--help-language-tools", "Display information about language tools options");
570 put_help("--help-debug", "Display information about compiler debugging options");
571 put_help("--help-firm", "Display information about direct firm options");
572 put_help("--help-all", "Display information about all options");
573 put_help("-c", "Compile and assemble but do not link");
574 put_help("-E", "Preprocess only");
575 put_help("-S", "Compile but do not assembler or link");
576 put_help("-o", "Specify output file");
577 put_help("-v", "Verbose output (show invocation of sub-processes)");
578 put_help("-x", "Force input language:");
579 put_choice("c", "C");
580 put_choice("c++", "C++");
581 put_choice("assembler", "Assembler (no preprocessing)");
582 put_choice("assembler-with-cpp", "Assembler with preprocessing");
583 put_choice("none", "Autodetection");
584 put_help("-pipe", "Ignored (gcc compatibility)");
587 static void print_help_preprocessor(void)
589 put_help("-nostdinc", "Do not search standard system include directories");
590 put_help("-trigraphs", "Support ISO C trigraphs");
591 put_help("-isystem", "");
592 put_help("-include", "");
593 put_help("-I PATH", "");
594 put_help("-D SYMBOL[=value]", "");
595 put_help("-U SYMBOL", "");
596 put_help("-Wp,OPTION", "Pass option directly to preprocessor");
599 put_help("-MMD", "");
607 static void print_help_parser(void)
609 put_help("-finput-charset=CHARSET", "Select encoding of input files");
610 put_help("-fmessage-length=LEN", "Ignored (gcc compatibility)");
611 put_help("-fshort-wchar", "Type \"wchar_t\" is unsigned short instead of int");
612 put_help("-fshow-column", "Show the column number in diagnostic messages");
613 put_help("-fsigned-char", "Type \"char\" is a signed type");
614 put_help("-funsigned-char", "Type \"char\" is an unsigned type");
615 put_help("--ms", "Enable msvc extensions");
616 put_help("--no-ms", "Disable msvc extensions");
617 put_help("--gcc", "Enable gcc extensions");
618 put_help("--no-gcc", "Disable gcc extensions");
619 put_help("-std=STANDARD", "Specify language standard:");
620 put_choice("c99", "ISO C99 standard");
621 put_choice("c89", "ISO C89 standard");
622 put_choice("c9x", "Deprecated");
623 put_choice("c++", "ISO C++ 98");
624 put_choice("c++98", "ISO C++ 98");
625 put_choice("gnu99", "ISO C99 + GNU extensions (default)");
626 put_choice("gnu89", "ISO C89 + GNU extensions");
627 put_choice("gnu9x", "Deprecated");
628 put_choice("iso9899:1990", "ISO C89");
629 put_choice("iso9899:199409", "ISO C90");
630 put_choice("iso9899:1999", "ISO C99");
631 put_choice("iso9899:199x", "Deprecated");
632 put_help("-pedantic", "Ignored (gcc compatibility)");
633 put_help("-ansi", "Ignored (gcc compatibility)");
634 put_help("--strict", "Enable strict conformance checking");
637 static void print_help_warnings(void)
639 put_help("-f[no-]diagnostics-show-option", "Show the switch, which controls a warning, after each warning");
640 put_help("-w", "Disable all warnings");
641 put_help("-Wno-trigraphs", "Warn if input contains trigraphs");
642 put_help("-Wundef", "Warn if an undefined macro is used in an #if");
643 put_help("-Wmissing-include-dirs", "Warn about missing user-specified include directories");
644 put_help("-Wendif-labels", "Warn about stray text after #elif and #endif");
645 put_help("-Winit-self", "Ignored (gcc compatibility)");
646 put_help("-Wformat-y2k", "Ignored (gcc compatibility)");
647 put_help("-Wformat-security", "Ignored (gcc compatibility)");
648 put_help("-Wold-style-declaration", "Ignored (gcc compatibility)");
649 put_help("-Wtype-limits", "Ignored (gcc compatibility)");
650 print_warning_opt_help();
653 static void print_help_optimization(void)
655 put_help("-O LEVEL", "Select optimization level (0-4)");
656 firm_option_help(put_help);
657 put_help("-fexpensive-optimizations","Ignored (gcc compatibility)");
660 static void print_help_codegeneration(void)
662 put_help("-g", "Generate debug information");
663 put_help("-pg", "Instrument code for gnu gprof");
664 put_help("-fomit-frame-pointer", "Produce code without frame pointer where possible");
665 put_help("-ffreestanding", "Compile in freestanding mode (see ISO C standard)");
666 put_help("-fhosted", "Compile in hosted (not freestanding) mode");
667 put_help("-fprofile-generate", "Generate instrumented code to collect profile information");
668 put_help("-fprofile-use", "Use profile information generated by instrumented binaries");
669 put_help("-ffp-precise", "Precise floating point model");
670 put_help("-ffp-fast", "Imprecise floating point model");
671 put_help("-ffp-strict", "Strict floating point model");
672 put_help("-pthread", "Use pthread threading library");
673 put_help("-mtarget=TARGET", "Specify target architecture as CPU-manufacturer-OS triple");
674 put_help("-mtriple=TARGET", "Alias for -mtarget (clang compatibility)");
675 put_help("-march=ARCH", "");
676 put_help("-mtune=ARCH", "");
677 put_help("-mcpu=CPU", "");
678 put_help("-mfpmath=", "");
679 put_help("-mpreferred-stack-boundary=", "");
680 put_help("-mrtd", "");
681 put_help("-mregparm=", "Not supported yet");
682 put_help("-msoft-float", "Not supported yet");
683 put_help("-m32", "Generate 32bit code");
684 put_help("-m64", "Generate 64bit code");
685 put_help("-fverbose-asm", "Ignored (gcc compatibility)");
686 put_help("-fjump-tables", "Ignored (gcc compatibility)");
687 put_help("-fcommon", "Ignored (gcc compatibility)");
688 put_help("-foptimize-sibling-calls", "Ignored (gcc compatibility)");
689 put_help("-falign-loops", "Ignored (gcc compatibility)");
690 put_help("-falign-jumps", "Ignored (gcc compatibility)");
691 put_help("-falign-functions", "Ignored (gcc compatibility)");
692 put_help("-fPIC", "Ignored (gcc compatibility)");
693 put_help("-ffast-math", "Same as -ffp-fast (gcc compatibility)");
695 puts("\tMost of these options can be used with a no- prefix to disable them");
696 puts("\te.g. -fno-omit-frame-pointer");
699 static void print_help_linker(void)
701 put_help("-l LIBRARY", "");
702 put_help("-L PATH", "");
703 put_help("-s", "Do not produce symbol table and relocation information");
704 put_help("-shared", "Produce a shared library");
705 put_help("-static", "Produce statically linked binary");
706 put_help("-Wl,OPTION", "Pass option directly to linker");
709 static void print_help_debug(void)
711 put_help("--lextest", "Preprocess and tokenize only");
712 put_help("--print-ast", "Preprocess, parse and print AST");
713 put_help("--print-implicit-cast", "");
714 put_help("--print-parenthesis", "");
715 put_help("--benchmark", "Preprocess and parse, produces no output");
716 put_help("--time", "Measure time of compiler passes");
717 put_help("--dump-function func", "Preprocess, parse and output vcg graph of func");
718 put_help("--export-ir", "Preprocess, parse and output compiler intermediate representation");
721 static void print_help_language_tools(void)
723 put_help("--print-fluffy", "Preprocess, parse and generate declarations for the fluffy language");
724 put_help("--print-jna", "Preprocess, parse and generate declarations for JNA");
725 put_help("--jna-limit filename", "");
726 put_help("--jna-libname name", "");
729 static void print_help_firm(void)
731 put_help("-bOPTION", "Directly pass option to libFirm backend");
732 int res = be_parse_arg("help");
740 HELP_PREPROCESSOR = 1 << 1,
741 HELP_PARSER = 1 << 2,
742 HELP_WARNINGS = 1 << 3,
743 HELP_OPTIMIZATION = 1 << 4,
744 HELP_CODEGEN = 1 << 5,
745 HELP_LINKER = 1 << 6,
746 HELP_LANGUAGETOOLS = 1 << 7,
753 static void print_help(const char *argv0, help_sections_t sections)
755 if (sections & HELP_BASIC) print_help_basic(argv0);
756 if (sections & HELP_PREPROCESSOR) print_help_preprocessor();
757 if (sections & HELP_PARSER) print_help_parser();
758 if (sections & HELP_WARNINGS) print_help_warnings();
759 if (sections & HELP_OPTIMIZATION) print_help_optimization();
760 if (sections & HELP_CODEGEN) print_help_codegeneration();
761 if (sections & HELP_LINKER) print_help_linker();
762 if (sections & HELP_LANGUAGETOOLS) print_help_language_tools();
763 if (sections & HELP_DEBUG) print_help_debug();
764 if (sections & HELP_FIRM) print_help_firm();
767 static void set_be_option(const char *arg)
769 int res = be_parse_arg(arg);
774 static void copy_file(FILE *dest, FILE *input)
778 while (!feof(input) && !ferror(dest)) {
779 size_t read = fread(buf, 1, sizeof(buf), input);
780 if (fwrite(buf, 1, read, dest) != read) {
781 perror("could not write output");
786 static FILE *open_file(const char *filename)
788 if (streq(filename, "-")) {
792 FILE *in = fopen(filename, "r");
794 fprintf(stderr, "Could not open '%s': %s\n", filename,
802 static filetype_t get_filetype_from_string(const char *string)
804 if (streq(string, "c") || streq(string, "c-header"))
806 if (streq(string, "c++") || streq(string, "c++-header"))
808 if (streq(string, "assembler"))
809 return FILETYPE_PREPROCESSED_ASSEMBLER;
810 if (streq(string, "assembler-with-cpp"))
811 return FILETYPE_ASSEMBLER;
812 if (streq(string, "none"))
813 return FILETYPE_AUTODETECT;
815 return FILETYPE_UNKNOWN;
818 static bool init_os_support(void)
820 wchar_atomic_kind = ATOMIC_TYPE_INT;
821 enable_main_collect2_hack = false;
822 define_intmax_types = false;
824 if (firm_is_unixish_os(target_machine)) {
825 set_create_ld_ident(create_name_linux_elf);
826 } else if (firm_is_darwin_os(target_machine)) {
827 set_create_ld_ident(create_name_macho);
828 define_intmax_types = true;
829 } else if (firm_is_windows_os(target_machine)) {
830 wchar_atomic_kind = ATOMIC_TYPE_USHORT;
831 enable_main_collect2_hack = true;
832 set_create_ld_ident(create_name_win32);
840 static bool parse_target_triple(const char *arg)
842 machine_triple_t *triple = firm_parse_machine_triple(arg);
843 if (triple == NULL) {
844 fprintf(stderr, "Target-triple is not in the form 'cpu_type-manufacturer-operating_system'\n");
847 target_machine = triple;
851 static unsigned decide_modulo_shift(unsigned type_size)
853 if (architecture_modulo_shift == 0)
855 if (type_size < architecture_modulo_shift)
856 return architecture_modulo_shift;
860 static bool is_ia32_cpu(const char *architecture)
862 return streq(architecture, "i386")
863 || streq(architecture, "i486")
864 || streq(architecture, "i586")
865 || streq(architecture, "i686")
866 || streq(architecture, "i786");
869 static const char *setup_isa_from_tripel(const machine_triple_t *machine)
871 const char *cpu = machine->cpu_type;
873 if (is_ia32_cpu(cpu)) {
875 } else if (streq(cpu, "x86_64")) {
877 } else if (streq(cpu, "sparc")) {
879 } else if (streq(cpu, "arm")) {
882 fprintf(stderr, "Unknown cpu '%s' in target-triple\n", cpu);
887 static const char *setup_target_machine(void)
889 if (!setup_firm_for_machine(target_machine))
892 const char *isa = setup_isa_from_tripel(target_machine);
903 * initialize cparser type properties based on a firm type
905 static void set_typeprops_type(atomic_type_properties_t* props, ir_type *type)
907 props->size = get_type_size_bytes(type);
908 props->alignment = get_type_alignment_bytes(type);
909 props->struct_alignment = props->alignment;
913 * Copy atomic type properties except the integer conversion rank
915 static void copy_typeprops(atomic_type_properties_t *dest,
916 const atomic_type_properties_t *src)
918 dest->size = src->size;
919 dest->alignment = src->alignment;
920 dest->struct_alignment = src->struct_alignment;
921 dest->flags = src->flags;
924 static void init_types_and_adjust(void)
926 const backend_params *be_params = be_get_backend_param();
927 unsigned machine_size = be_params->machine_size;
928 init_types(machine_size);
930 atomic_type_properties_t *props = atomic_type_properties;
932 /* adjust types as requested by target architecture */
933 ir_type *type_long_double = be_params->type_long_double;
934 if (type_long_double != NULL) {
935 set_typeprops_type(&props[ATOMIC_TYPE_LONG_DOUBLE], type_long_double);
936 atomic_modes[ATOMIC_TYPE_LONG_DOUBLE] = get_type_mode(type_long_double);
939 ir_type *type_long_long = be_params->type_long_long;
940 if (type_long_long != NULL)
941 set_typeprops_type(&props[ATOMIC_TYPE_LONGLONG], type_long_long);
943 ir_type *type_unsigned_long_long = be_params->type_unsigned_long_long;
944 if (type_unsigned_long_long != NULL)
945 set_typeprops_type(&props[ATOMIC_TYPE_ULONGLONG], type_unsigned_long_long);
947 /* operating system ABI specifics */
948 if (firm_is_darwin_os(target_machine)) {
949 if (machine_size == 32) {
950 props[ATOMIC_TYPE_LONGLONG].struct_alignment = 4;
951 props[ATOMIC_TYPE_ULONGLONG].struct_alignment = 4;
952 props[ATOMIC_TYPE_DOUBLE].struct_alignment = 4;
953 props[ATOMIC_TYPE_LONG_DOUBLE].size = 16;
954 props[ATOMIC_TYPE_LONG_DOUBLE].alignment = 16;
955 props[ATOMIC_TYPE_LONG_DOUBLE].struct_alignment = 16;
957 } else if (firm_is_windows_os(target_machine)) {
958 if (machine_size == 64) {
959 /* to ease porting of old c-code microsoft decided to use 32bits
961 props[ATOMIC_TYPE_LONG] = props[ATOMIC_TYPE_INT];
962 props[ATOMIC_TYPE_ULONG] = props[ATOMIC_TYPE_UINT];
965 /* on windows long double is not supported */
966 props[ATOMIC_TYPE_LONG_DOUBLE] = props[ATOMIC_TYPE_DOUBLE];
967 } else if (firm_is_unixish_os(target_machine)) {
968 if (is_ia32_cpu(target_machine->cpu_type)) {
969 /* System V has a broken alignment for double so we have to add
971 props[ATOMIC_TYPE_DOUBLE].struct_alignment = 4;
972 props[ATOMIC_TYPE_LONGLONG].struct_alignment = 4;
973 props[ATOMIC_TYPE_ULONGLONG].struct_alignment = 4;
977 /* stuff decided after processing operating system specifics and
978 * commandline flags */
979 if (char_is_signed) {
980 props[ATOMIC_TYPE_CHAR].flags |= ATOMIC_TYPE_FLAG_SIGNED;
982 props[ATOMIC_TYPE_CHAR].flags &= ~ATOMIC_TYPE_FLAG_SIGNED;
984 /* copy over wchar_t properties (including rank) */
985 props[ATOMIC_TYPE_WCHAR_T] = props[wchar_atomic_kind];
987 /* initialize defaults for unsupported types */
988 if (type_long_long == NULL) {
989 copy_typeprops(&props[ATOMIC_TYPE_LONGLONG], &props[ATOMIC_TYPE_LONG]);
991 if (type_unsigned_long_long == NULL) {
992 copy_typeprops(&props[ATOMIC_TYPE_ULONGLONG],
993 &props[ATOMIC_TYPE_ULONG]);
995 if (type_long_double == NULL) {
996 copy_typeprops(&props[ATOMIC_TYPE_LONG_DOUBLE],
997 &props[ATOMIC_TYPE_DOUBLE]);
1000 /* initialize firm pointer modes */
1002 unsigned bit_size = machine_size;
1003 unsigned modulo_shift = decide_modulo_shift(bit_size);
1005 snprintf(name, sizeof(name), "p%u", machine_size);
1006 ir_mode *ptr_mode = new_reference_mode(name, irma_twos_complement, bit_size, modulo_shift);
1008 if (machine_size == 16) {
1009 set_reference_mode_signed_eq(ptr_mode, mode_Hs);
1010 set_reference_mode_unsigned_eq(ptr_mode, mode_Hu);
1011 } else if (machine_size == 32) {
1012 set_reference_mode_signed_eq(ptr_mode, mode_Is);
1013 set_reference_mode_unsigned_eq(ptr_mode, mode_Iu);
1014 } else if (machine_size == 64) {
1015 set_reference_mode_signed_eq(ptr_mode, mode_Ls);
1016 set_reference_mode_unsigned_eq(ptr_mode, mode_Lu);
1018 panic("strange machine_size when determining pointer modes");
1021 /* Hmm, pointers should be machine size */
1022 set_modeP_data(ptr_mode);
1023 set_modeP_code(ptr_mode);
1025 byte_order_big_endian = be_params->byte_order_big_endian;
1026 if (be_params->modulo_shift_efficient) {
1027 architecture_modulo_shift = machine_size;
1029 architecture_modulo_shift = 0;
1033 int main(int argc, char **argv)
1035 const char *dumpfunction = NULL;
1036 const char *print_file_name_file = NULL;
1037 compile_mode_t mode = CompileAssembleLink;
1039 int result = EXIT_SUCCESS;
1040 char cpu_arch[16] = "ia32";
1041 file_list_entry_t *files = NULL;
1042 file_list_entry_t *last_file = NULL;
1043 bool construct_dep_target = false;
1044 bool do_timing = false;
1045 bool profile_generate = false;
1046 bool profile_use = false;
1047 struct obstack file_obst;
1049 atexit(free_temp_files);
1051 /* hack for now... */
1052 if (strstr(argv[0], "pptest") != NULL) {
1053 extern int pptest_main(int argc, char **argv);
1054 return pptest_main(argc, argv);
1057 obstack_init(&cppflags_obst);
1058 obstack_init(&ldflags_obst);
1059 obstack_init(&asflags_obst);
1060 obstack_init(&file_obst);
1062 #define GET_ARG_AFTER(def, args) \
1064 def = &arg[sizeof(args)-1]; \
1065 if (def[0] == '\0') { \
1068 fprintf(stderr, "error: expected argument after '" args "'\n"); \
1069 argument_errors = true; \
1073 if (def[0] == '-' && def[1] != '\0') { \
1074 fprintf(stderr, "error: expected argument after '" args "'\n"); \
1075 argument_errors = true; \
1081 #define SINGLE_OPTION(ch) (option[0] == (ch) && option[1] == '\0')
1083 /* initialize this early because it has to parse options */
1086 /* early options parsing (find out optimization level and OS) */
1087 for (int i = 1; i < argc; ++i) {
1088 const char *arg = argv[i];
1092 const char *option = &arg[1];
1093 if (option[0] == 'O') {
1094 sscanf(&option[1], "%d", &opt_level);
1098 if (target_machine == NULL) {
1099 target_machine = firm_get_host_machine();
1101 choose_optimization_pack(opt_level);
1102 setup_target_machine();
1104 /* parse rest of options */
1105 standard = STANDARD_DEFAULT;
1106 unsigned features_on = 0;
1107 unsigned features_off = 0;
1108 filetype_t forced_filetype = FILETYPE_AUTODETECT;
1109 help_sections_t help = HELP_NONE;
1110 bool argument_errors = false;
1111 for (int i = 1; i < argc; ++i) {
1112 const char *arg = argv[i];
1113 if (arg[0] == '-' && arg[1] != '\0') {
1115 const char *option = &arg[1];
1116 if (option[0] == 'o') {
1117 GET_ARG_AFTER(outname, "-o");
1118 } else if (option[0] == 'g') {
1119 /* TODO: parse -gX with 0<=x<=3... */
1120 set_be_option("debug=frameinfo");
1121 set_be_option("ia32-nooptcc=yes");
1122 } else if (SINGLE_OPTION('c')) {
1123 mode = CompileAssemble;
1124 } else if (SINGLE_OPTION('E')) {
1125 mode = PreprocessOnly;
1126 } else if (SINGLE_OPTION('s')) {
1127 add_flag(&ldflags_obst, "-s");
1128 } else if (SINGLE_OPTION('S')) {
1130 } else if (option[0] == 'O') {
1132 } else if (option[0] == 'I') {
1134 GET_ARG_AFTER(opt, "-I");
1135 add_flag(&cppflags_obst, "-I%s", opt);
1136 } else if (option[0] == 'D') {
1138 GET_ARG_AFTER(opt, "-D");
1139 add_flag(&cppflags_obst, "-D%s", opt);
1140 } else if (option[0] == 'U') {
1142 GET_ARG_AFTER(opt, "-U");
1143 add_flag(&cppflags_obst, "-U%s", opt);
1144 } else if (option[0] == 'l') {
1146 GET_ARG_AFTER(opt, "-l");
1147 add_flag(&ldflags_obst, "-l%s", opt);
1148 } else if (option[0] == 'L') {
1150 GET_ARG_AFTER(opt, "-L");
1151 add_flag(&ldflags_obst, "-L%s", opt);
1152 } else if (SINGLE_OPTION('v')) {
1154 } else if (SINGLE_OPTION('w')) {
1155 add_flag(&cppflags_obst, "-w");
1156 disable_all_warnings();
1157 } else if (option[0] == 'x') {
1159 GET_ARG_AFTER(opt, "-x");
1160 forced_filetype = get_filetype_from_string(opt);
1161 if (forced_filetype == FILETYPE_UNKNOWN) {
1162 fprintf(stderr, "Unknown language '%s'\n", opt);
1163 argument_errors = true;
1165 } else if (streq(option, "M")) {
1166 mode = PreprocessOnly;
1167 add_flag(&cppflags_obst, "-M");
1168 } else if (streq(option, "MMD") ||
1169 streq(option, "MD")) {
1170 construct_dep_target = true;
1171 add_flag(&cppflags_obst, "-%s", option);
1172 } else if (streq(option, "MM") ||
1173 streq(option, "MP")) {
1174 add_flag(&cppflags_obst, "-%s", option);
1175 } else if (streq(option, "MT") ||
1176 streq(option, "MQ") ||
1177 streq(option, "MF")) {
1179 GET_ARG_AFTER(opt, "-MT");
1180 add_flag(&cppflags_obst, "-%s", option);
1181 add_flag(&cppflags_obst, "%s", opt);
1182 } else if (streq(option, "include")) {
1184 GET_ARG_AFTER(opt, "-include");
1185 add_flag(&cppflags_obst, "-include");
1186 add_flag(&cppflags_obst, "%s", opt);
1187 } else if (streq(option, "isystem")) {
1189 GET_ARG_AFTER(opt, "-isystem");
1190 add_flag(&cppflags_obst, "-isystem");
1191 add_flag(&cppflags_obst, "%s", opt);
1192 #if defined(linux) || defined(__linux) || defined(__linux__) || defined(__CYGWIN__)
1193 } else if (streq(option, "pthread")) {
1194 /* set flags for the preprocessor */
1195 add_flag(&cppflags_obst, "-D_REENTRANT");
1196 /* set flags for the linker */
1197 add_flag(&ldflags_obst, "-lpthread");
1199 } else if (streq(option, "nostdinc")
1200 || streq(option, "trigraphs")) {
1201 /* pass these through to the preprocessor */
1202 add_flag(&cppflags_obst, "%s", arg);
1203 } else if (streq(option, "pipe")) {
1204 /* here for gcc compatibility */
1205 } else if (streq(option, "static")) {
1206 add_flag(&ldflags_obst, "-static");
1207 } else if (streq(option, "shared")) {
1208 add_flag(&ldflags_obst, "-shared");
1209 } else if (option[0] == 'f') {
1210 char const *orig_opt;
1211 GET_ARG_AFTER(orig_opt, "-f");
1213 if (strstart(orig_opt, "input-charset=")) {
1214 char const* const encoding = strchr(orig_opt, '=') + 1;
1215 input_encoding = encoding;
1216 } else if (strstart(orig_opt, "align-loops=") ||
1217 strstart(orig_opt, "align-jumps=") ||
1218 strstart(orig_opt, "align-functions=")) {
1219 fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
1220 } else if (strstart(orig_opt, "visibility=")) {
1221 const char *val = strchr(orig_opt, '=')+1;
1222 elf_visibility_tag_t visibility
1223 = get_elf_visibility_from_string(val);
1224 if (visibility == ELF_VISIBILITY_ERROR) {
1225 fprintf(stderr, "invalid visibility '%s' specified\n",
1227 argument_errors = true;
1229 set_default_visibility(visibility);
1231 } else if (strstart(orig_opt, "message-length=")) {
1232 /* ignore: would only affect error message format */
1233 } else if (streq(orig_opt, "fast-math") ||
1234 streq(orig_opt, "fp-fast")) {
1235 firm_fp_model = fp_model_fast;
1236 } else if (streq(orig_opt, "fp-precise")) {
1237 firm_fp_model = fp_model_precise;
1238 } else if (streq(orig_opt, "fp-strict")) {
1239 firm_fp_model = fp_model_strict;
1240 } else if (streq(orig_opt, "help")) {
1241 fprintf(stderr, "warning: -fhelp is deprecated\n");
1242 help |= HELP_OPTIMIZATION;
1244 /* -f options which have an -fno- variant */
1245 char const *opt = orig_opt;
1246 bool truth_value = true;
1247 if (opt[0] == 'n' && opt[1] == 'o' && opt[2] == '-') {
1248 truth_value = false;
1252 if (streq(opt, "diagnostics-show-option")) {
1253 diagnostics_show_option = truth_value;
1254 } else if (streq(opt, "dollars-in-identifiers")) {
1255 allow_dollar_in_symbol = truth_value;
1256 } else if (streq(opt, "omit-frame-pointer")) {
1257 set_be_option(truth_value ? "omitfp" : "omitfp=no");
1258 } else if (streq(opt, "short-wchar")) {
1259 wchar_atomic_kind = truth_value ? ATOMIC_TYPE_USHORT
1261 } else if (streq(opt, "show-column")) {
1262 show_column = truth_value;
1263 } else if (streq(opt, "signed-char")) {
1264 char_is_signed = truth_value;
1265 } else if (streq(opt, "strength-reduce")) {
1266 /* does nothing, for gcc compatibility (even gcc does
1267 * nothing for this switch anymore) */
1268 } else if (streq(opt, "syntax-only")) {
1269 mode = truth_value ? ParseOnly : CompileAssembleLink;
1270 } else if (streq(opt, "unsigned-char")) {
1271 char_is_signed = !truth_value;
1272 } else if (streq(opt, "freestanding")) {
1273 freestanding = truth_value;
1274 } else if (streq(opt, "hosted")) {
1275 freestanding = !truth_value;
1276 } else if (streq(opt, "profile-generate")) {
1277 profile_generate = truth_value;
1278 } else if (streq(opt, "profile-use")) {
1279 profile_use = truth_value;
1280 } else if (!truth_value &&
1281 streq(opt, "asynchronous-unwind-tables")) {
1282 /* nothing todo, a gcc feature which we do not support
1283 * anyway was deactivated */
1284 } else if (streq(opt, "verbose-asm")) {
1285 /* ignore: we always print verbose assembler */
1286 } else if (streq(opt, "jump-tables") ||
1287 streq(opt, "expensive-optimizations") ||
1288 streq(opt, "common") ||
1289 streq(opt, "optimize-sibling-calls") ||
1290 streq(opt, "align-loops") ||
1291 streq(opt, "align-jumps") ||
1292 streq(opt, "align-functions") ||
1293 streq(opt, "unroll-loops") ||
1294 streq(opt, "PIC") ||
1295 streq(opt, "stack-protector") ||
1296 streq(opt, "stack-protector-all")) {
1297 fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
1299 int res = firm_option(orig_opt);
1301 fprintf(stderr, "error: unknown Firm option '-f%s'\n",
1303 argument_errors = true;
1308 } else if (option[0] == 'b') {
1310 GET_ARG_AFTER(opt, "-b");
1312 if (streq(opt, "help")) {
1313 fprintf(stderr, "warning: -bhelp is deprecated (use --help-firm)\n");
1316 int res = be_parse_arg(opt);
1318 fprintf(stderr, "error: unknown Firm backend option '-b %s'\n",
1320 argument_errors = true;
1321 } else if (strstart(opt, "isa=")) {
1322 strncpy(cpu_arch, opt, sizeof(cpu_arch));
1325 } else if (option[0] == 'W') {
1326 if (strstart(option + 1, "p,")) {
1327 // pass options directly to the preprocessor
1329 GET_ARG_AFTER(opt, "-Wp,");
1330 add_flag(&cppflags_obst, "-Wp,%s", opt);
1331 } else if (strstart(option + 1, "l,")) {
1332 // pass options directly to the linker
1334 GET_ARG_AFTER(opt, "-Wl,");
1335 add_flag(&ldflags_obst, "-Wl,%s", opt);
1336 } else if (streq(option + 1, "no-trigraphs")
1337 || streq(option + 1, "undef")
1338 || streq(option + 1, "missing-include-dirs")
1339 || streq(option + 1, "endif-labels")) {
1340 add_flag(&cppflags_obst, "%s", arg);
1341 } else if (streq(option+1, "init-self")) {
1342 /* ignored (same as gcc does) */
1343 } else if (streq(option+1, "format-y2k")
1344 || streq(option+1, "format-security")
1345 || streq(option+1, "old-style-declaration")
1346 || streq(option+1, "type-limits")) {
1347 /* ignore (gcc compatibility) */
1349 set_warning_opt(&option[1]);
1351 } else if (option[0] == 'm') {
1356 GET_ARG_AFTER(opt, "-m");
1357 if (strstart(opt, "target=")) {
1358 GET_ARG_AFTER(opt, "-mtarget=");
1359 if (!parse_target_triple(opt)) {
1360 argument_errors = true;
1362 const char *isa = setup_target_machine();
1363 strncpy(cpu_arch, isa, sizeof(cpu_arch));
1364 target_triple = opt;
1366 } else if (strstart(opt, "triple=")) {
1367 GET_ARG_AFTER(opt, "-mtriple=");
1368 if (!parse_target_triple(opt)) {
1369 argument_errors = true;
1371 const char *isa = setup_target_machine();
1372 strncpy(cpu_arch, isa, sizeof(cpu_arch));
1373 target_triple = opt;
1375 } else if (strstart(opt, "arch=")) {
1376 GET_ARG_AFTER(opt, "-march=");
1377 snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
1378 int res = be_parse_arg(arch_opt);
1379 snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
1380 res &= be_parse_arg(arch_opt);
1383 fprintf(stderr, "Unknown architecture '%s'\n", arch_opt);
1384 argument_errors = true;
1386 } else if (strstart(opt, "tune=")) {
1387 GET_ARG_AFTER(opt, "-mtune=");
1388 snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
1389 int res = be_parse_arg(arch_opt);
1391 argument_errors = true;
1392 } else if (strstart(opt, "cpu=")) {
1393 GET_ARG_AFTER(opt, "-mcpu=");
1394 snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
1395 int res = be_parse_arg(arch_opt);
1397 argument_errors = true;
1398 } else if (strstart(opt, "fpmath=")) {
1399 GET_ARG_AFTER(opt, "-mfpmath=");
1400 if (streq(opt, "387"))
1402 else if (streq(opt, "sse"))
1405 fprintf(stderr, "error: option -mfpmath supports only 387 or sse\n");
1406 argument_errors = true;
1408 if (!argument_errors) {
1409 snprintf(arch_opt, sizeof(arch_opt), "%s-fpunit=%s", cpu_arch, opt);
1410 int res = be_parse_arg(arch_opt);
1412 argument_errors = true;
1414 } else if (strstart(opt, "preferred-stack-boundary=")) {
1415 GET_ARG_AFTER(opt, "-mpreferred-stack-boundary=");
1416 snprintf(arch_opt, sizeof(arch_opt), "%s-stackalign=%s", cpu_arch, opt);
1417 int res = be_parse_arg(arch_opt);
1419 argument_errors = true;
1420 } else if (streq(opt, "rtd")) {
1421 default_calling_convention = CC_STDCALL;
1422 } else if (strstart(opt, "regparm=")) {
1423 fprintf(stderr, "error: regparm convention not supported yet\n");
1424 argument_errors = true;
1425 } else if (streq(opt, "soft-float")) {
1426 add_flag(&ldflags_obst, "-msoft-float");
1427 snprintf(arch_opt, sizeof(arch_opt), "%s-fpunit=softfloat", cpu_arch);
1428 int res = be_parse_arg(arch_opt);
1430 argument_errors = true;
1431 } else if (streq(opt, "sse2")) {
1432 /* ignore for now, our x86 backend always uses sse when
1433 * sse is requested */
1435 long int value = strtol(opt, NULL, 10);
1437 fprintf(stderr, "error: wrong option '-m %s'\n", opt);
1438 argument_errors = true;
1439 } else if (value != 16 && value != 32 && value != 64) {
1440 fprintf(stderr, "error: option -m supports only 16, 32 or 64\n");
1441 argument_errors = true;
1443 unsigned machine_size = (unsigned)value;
1444 /* TODO: choose/change backend based on this */
1445 add_flag(&cppflags_obst, "-m%u", machine_size);
1446 add_flag(&asflags_obst, "-m%u", machine_size);
1447 add_flag(&ldflags_obst, "-m%u", machine_size);
1450 } else if (streq(option, "pg")) {
1451 set_be_option("gprof");
1452 add_flag(&ldflags_obst, "-pg");
1453 } else if (streq(option, "ansi")) {
1454 add_flag(&cppflags_obst, "-ansi");
1455 } else if (streq(option, "pedantic")) {
1456 fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg);
1457 } else if (strstart(option, "std=")) {
1458 const char *const o = &option[4];
1460 streq(o, "c++") ? STANDARD_CXX98 :
1461 streq(o, "c++98") ? STANDARD_CXX98 :
1462 streq(o, "c89") ? STANDARD_C89 :
1463 streq(o, "c99") ? STANDARD_C99 :
1464 streq(o, "c9x") ? STANDARD_C99 : // deprecated
1465 streq(o, "gnu++98") ? STANDARD_GNUXX98 :
1466 streq(o, "gnu89") ? STANDARD_GNU89 :
1467 streq(o, "gnu99") ? STANDARD_GNU99 :
1468 streq(o, "gnu9x") ? STANDARD_GNU99 : // deprecated
1469 streq(o, "iso9899:1990") ? STANDARD_C89 :
1470 streq(o, "iso9899:199409") ? STANDARD_C90 :
1471 streq(o, "iso9899:1999") ? STANDARD_C99 :
1472 streq(o, "iso9899:199x") ? STANDARD_C99 : // deprecated
1473 (fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg), standard);
1474 } else if (streq(option, "version")) {
1475 print_cparser_version();
1476 return EXIT_SUCCESS;
1477 } else if (streq(option, "dumpversion")) {
1478 /* gcc compatibility option */
1479 print_cparser_version_short();
1480 return EXIT_SUCCESS;
1481 } else if (strstart(option, "print-file-name=")) {
1482 GET_ARG_AFTER(print_file_name_file, "-print-file-name=");
1483 } else if (option[0] == '-') {
1484 /* double dash option */
1486 if (streq(option, "gcc")) {
1487 features_on |= _GNUC;
1488 features_off &= ~_GNUC;
1489 } else if (streq(option, "no-gcc")) {
1490 features_on &= ~_GNUC;
1491 features_off |= _GNUC;
1492 } else if (streq(option, "ms")) {
1494 features_off &= ~_MS;
1495 } else if (streq(option, "no-ms")) {
1496 features_on &= ~_MS;
1497 features_off |= _MS;
1498 } else if (streq(option, "strict")) {
1500 } else if (streq(option, "lextest")) {
1502 } else if (streq(option, "benchmark")) {
1503 mode = BenchmarkParser;
1504 } else if (streq(option, "print-ast")) {
1506 } else if (streq(option, "print-implicit-cast")) {
1507 print_implicit_casts = true;
1508 } else if (streq(option, "print-parenthesis")) {
1509 print_parenthesis = true;
1510 } else if (streq(option, "print-fluffy")) {
1512 } else if (streq(option, "print-jna")) {
1514 } else if (streq(option, "jna-limit")) {
1517 fprintf(stderr, "error: "
1518 "expected argument after '--jna-limit'\n");
1519 argument_errors = true;
1522 jna_limit_output(argv[i]);
1523 } else if (streq(option, "jna-libname")) {
1526 fprintf(stderr, "error: "
1527 "expected argument after '--jna-libname'\n");
1528 argument_errors = true;
1531 jna_set_libname(argv[i]);
1532 } else if (streq(option, "time")) {
1534 } else if (streq(option, "version")) {
1535 print_cparser_version();
1536 return EXIT_SUCCESS;
1537 } else if (streq(option, "help")) {
1539 } else if (streq(option, "help-parser")) {
1540 help |= HELP_PARSER;
1541 } else if (streq(option, "help-warnings")) {
1542 help |= HELP_WARNINGS;
1543 } else if (streq(option, "help-codegen")) {
1544 help |= HELP_CODEGEN;
1545 } else if (streq(option, "help-linker")) {
1546 help |= HELP_LINKER;
1547 } else if (streq(option, "help-optimization")) {
1548 help |= HELP_OPTIMIZATION;
1549 } else if (streq(option, "help-language-tools")) {
1550 help |= HELP_LANGUAGETOOLS;
1551 } else if (streq(option, "help-debug")) {
1553 } else if (streq(option, "help-firm")) {
1555 } else if (streq(option, "help-all")) {
1557 } else if (streq(option, "dump-function")) {
1560 fprintf(stderr, "error: "
1561 "expected argument after '--dump-function'\n");
1562 argument_errors = true;
1565 dumpfunction = argv[i];
1567 } else if (streq(option, "export-ir")) {
1568 mode = CompileExportIR;
1569 } else if (streq(option, "unroll-loops")) {
1570 /* ignore (gcc compatibility) */
1572 fprintf(stderr, "error: unknown argument '%s'\n", arg);
1573 argument_errors = true;
1576 fprintf(stderr, "error: unknown argument '%s'\n", arg);
1577 argument_errors = true;
1580 filetype_t type = forced_filetype;
1581 if (type == FILETYPE_AUTODETECT) {
1582 if (streq(arg, "-")) {
1583 /* - implicitly means C source file */
1586 const char *suffix = strrchr(arg, '.');
1587 /* Ensure there is at least one char before the suffix */
1588 if (suffix != NULL && suffix != arg) {
1591 streq(suffix, "S") ? FILETYPE_ASSEMBLER :
1592 streq(suffix, "a") ? FILETYPE_OBJECT :
1593 streq(suffix, "c") ? FILETYPE_C :
1594 streq(suffix, "i") ? FILETYPE_PREPROCESSED_C :
1595 streq(suffix, "C") ? FILETYPE_CXX :
1596 streq(suffix, "cc") ? FILETYPE_CXX :
1597 streq(suffix, "cp") ? FILETYPE_CXX :
1598 streq(suffix, "cpp") ? FILETYPE_CXX :
1599 streq(suffix, "CPP") ? FILETYPE_CXX :
1600 streq(suffix, "cxx") ? FILETYPE_CXX :
1601 streq(suffix, "c++") ? FILETYPE_CXX :
1602 streq(suffix, "ii") ? FILETYPE_PREPROCESSED_CXX :
1603 streq(suffix, "h") ? FILETYPE_C :
1604 streq(suffix, "ir") ? FILETYPE_IR :
1605 streq(suffix, "o") ? FILETYPE_OBJECT :
1606 streq(suffix, "s") ? FILETYPE_PREPROCESSED_ASSEMBLER :
1607 streq(suffix, "so") ? FILETYPE_OBJECT :
1608 FILETYPE_OBJECT; /* gcc behavior: unknown file extension means object file */
1613 file_list_entry_t *entry
1614 = obstack_alloc(&file_obst, sizeof(entry[0]));
1615 memset(entry, 0, sizeof(entry[0]));
1619 if (last_file != NULL) {
1620 last_file->next = entry;
1628 if (help != HELP_NONE) {
1629 print_help(argv[0], help);
1630 return !argument_errors;
1633 if (print_file_name_file != NULL) {
1634 print_file_name(print_file_name_file);
1635 return EXIT_SUCCESS;
1637 if (files == NULL) {
1638 fprintf(stderr, "error: no input files specified\n");
1639 argument_errors = true;
1642 if (argument_errors) {
1644 return EXIT_FAILURE;
1647 /* apply some effects from switches */
1648 c_mode |= features_on;
1649 c_mode &= ~features_off;
1650 if (profile_generate) {
1651 add_flag(&ldflags_obst, "-lfirmprof");
1652 set_be_option("profilegenerate");
1655 set_be_option("profileuse");
1658 init_symbol_table();
1659 init_types_and_adjust();
1662 if (wchar_atomic_kind == ATOMIC_TYPE_INT)
1663 init_wchar_types(type_int);
1664 else if (wchar_atomic_kind == ATOMIC_TYPE_USHORT)
1665 init_wchar_types(type_short);
1667 panic("unexpected wchar type");
1677 if (construct_dep_target) {
1678 if (outname != 0 && strlen(outname) >= 2) {
1679 get_output_name(dep_target, sizeof(dep_target), outname, ".d");
1681 get_output_name(dep_target, sizeof(dep_target), files->name, ".d");
1684 dep_target[0] = '\0';
1687 char outnamebuf[4096];
1688 if (outname == NULL) {
1689 const char *filename = files->name;
1692 case BenchmarkParser:
1697 case PreprocessOnly:
1702 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".s");
1703 outname = outnamebuf;
1705 case CompileAssemble:
1706 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".o");
1707 outname = outnamebuf;
1710 get_output_name(outnamebuf, sizeof(outnamebuf), dumpfunction,
1712 outname = outnamebuf;
1714 case CompileExportIR:
1715 get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".ir");
1716 outname = outnamebuf;
1718 case CompileAssembleLink:
1728 assert(outname != NULL);
1731 if (streq(outname, "-")) {
1734 out = fopen(outname, "w");
1736 fprintf(stderr, "Could not open '%s' for writing: %s\n", outname,
1738 return EXIT_FAILURE;
1742 file_list_entry_t *file;
1743 bool already_constructed_firm = false;
1744 for (file = files; file != NULL; file = file->next) {
1745 char asm_tempfile[1024];
1746 const char *filename = file->name;
1747 filetype_t filetype = file->type;
1749 if (filetype == FILETYPE_OBJECT)
1753 if (mode == LexTest) {
1755 in = open_file(filename);
1756 lextest(in, filename);
1758 return EXIT_SUCCESS;
1761 FILE *preprocessed_in = NULL;
1762 filetype_t next_filetype = filetype;
1765 next_filetype = FILETYPE_PREPROCESSED_C;
1768 next_filetype = FILETYPE_PREPROCESSED_CXX;
1770 case FILETYPE_ASSEMBLER:
1771 next_filetype = FILETYPE_PREPROCESSED_ASSEMBLER;
1774 /* no support for input on FILE* yet */
1776 panic("internal compiler error: in for preprocessor != NULL");
1778 preprocessed_in = preprocess(filename, filetype);
1779 if (mode == PreprocessOnly) {
1780 copy_file(out, preprocessed_in);
1781 int pp_result = pclose(preprocessed_in);
1783 /* remove output file in case of error */
1784 if (out != stdout && pp_result != EXIT_SUCCESS) {
1790 in = preprocessed_in;
1791 filetype = next_filetype;
1799 if (mode == Compile) {
1802 asm_out = make_temp_file(asm_tempfile, sizeof(asm_tempfile), "ccs");
1806 in = open_file(filename);
1808 /* preprocess and compile */
1809 if (filetype == FILETYPE_PREPROCESSED_C) {
1810 char const* invalid_mode;
1813 case STANDARD_C89: c_mode = _C89; break;
1814 /* TODO determine difference between these two */
1815 case STANDARD_C90: c_mode = _C89; break;
1816 case STANDARD_C99: c_mode = _C89 | _C99; break;
1817 case STANDARD_GNU89: c_mode = _C89 | _GNUC; break;
1821 "warning: command line option \"-std=%s\" is not valid for C\n",
1824 case STANDARD_DEFAULT:
1825 case STANDARD_GNU99: c_mode = _C89 | _C99 | _GNUC; break;
1827 case STANDARD_CXX98: invalid_mode = "c++98"; goto default_c_warn;
1828 case STANDARD_GNUXX98: invalid_mode = "gnu98"; goto default_c_warn;
1831 } else if (filetype == FILETYPE_PREPROCESSED_CXX) {
1832 char const* invalid_mode;
1834 case STANDARD_C89: invalid_mode = "c89"; goto default_cxx_warn;
1835 case STANDARD_C90: invalid_mode = "c90"; goto default_cxx_warn;
1836 case STANDARD_C99: invalid_mode = "c99"; goto default_cxx_warn;
1837 case STANDARD_GNU89: invalid_mode = "gnu89"; goto default_cxx_warn;
1838 case STANDARD_GNU99: invalid_mode = "gnu99"; goto default_cxx_warn;
1841 case STANDARD_CXX98: c_mode = _CXX; break;
1845 "warning: command line option \"-std=%s\" is not valid for C++\n",
1847 case STANDARD_DEFAULT:
1848 case STANDARD_GNUXX98: c_mode = _CXX | _GNUC; break;
1852 c_mode |= features_on;
1853 c_mode &= ~features_off;
1855 /* do the actual parsing */
1856 ir_timer_t *t_parsing = ir_timer_new();
1857 timer_register(t_parsing, "Frontend: Parsing");
1858 timer_push(t_parsing);
1860 translation_unit_t *const unit = do_parsing(in, filename);
1861 timer_pop(t_parsing);
1863 /* prints the AST even if errors occurred */
1864 if (mode == PrintAst) {
1869 if (error_count > 0) {
1870 /* parsing failed because of errors */
1871 fprintf(stderr, "%u error(s), %u warning(s)\n", error_count,
1873 result = EXIT_FAILURE;
1875 } else if (warning_count > 0) {
1876 fprintf(stderr, "%u warning(s)\n", warning_count);
1879 if (in == preprocessed_in) {
1880 int pp_result = pclose(preprocessed_in);
1881 if (pp_result != EXIT_SUCCESS) {
1882 /* remove output file */
1885 return EXIT_FAILURE;
1889 if (mode == BenchmarkParser) {
1891 } else if (mode == PrintFluffy) {
1892 write_fluffy_decls(out, unit);
1894 } else if (mode == PrintJna) {
1895 write_jna_decls(out, unit);
1899 /* build the firm graph */
1900 ir_timer_t *t_construct = ir_timer_new();
1901 timer_register(t_construct, "Frontend: Graph construction");
1902 timer_push(t_construct);
1903 if (already_constructed_firm) {
1904 panic("compiling multiple files/translation units not possible");
1906 init_implicit_optimizations();
1907 translation_unit_to_firm(unit);
1908 already_constructed_firm = true;
1909 timer_pop(t_construct);
1912 if (mode == ParseOnly) {
1916 if (mode == CompileDump) {
1918 ident *id = new_id_from_str(dumpfunction);
1919 ir_graph *irg = NULL;
1920 int n_irgs = get_irp_n_irgs();
1921 for (int i = 0; i < n_irgs; ++i) {
1922 ir_graph *tirg = get_irp_irg(i);
1923 ident *irg_id = get_entity_ident(get_irg_entity(tirg));
1931 fprintf(stderr, "No graph for function '%s' found\n",
1933 return EXIT_FAILURE;
1936 dump_ir_graph_file(out, irg);
1938 return EXIT_SUCCESS;
1941 if (mode == CompileExportIR) {
1942 ir_export_file(out);
1943 if (ferror(out) != 0) {
1944 fprintf(stderr, "Error while writing to output\n");
1945 return EXIT_FAILURE;
1947 return EXIT_SUCCESS;
1950 generate_code(asm_out, filename);
1951 if (asm_out != out) {
1954 } else if (filetype == FILETYPE_IR) {
1956 int res = ir_import(filename);
1958 fprintf(stderr, "Firm-Program import failed\n");
1959 return EXIT_FAILURE;
1962 } else if (filetype == FILETYPE_PREPROCESSED_ASSEMBLER) {
1963 copy_file(asm_out, in);
1964 if (in == preprocessed_in) {
1965 int pp_result = pclose(preprocessed_in);
1966 if (pp_result != EXIT_SUCCESS) {
1967 /* remove output in error case */
1973 if (asm_out != out) {
1978 if (mode == Compile)
1981 /* if we're here then we have preprocessed assembly */
1982 filename = asm_tempfile;
1983 filetype = FILETYPE_PREPROCESSED_ASSEMBLER;
1986 if (filetype == FILETYPE_PREPROCESSED_ASSEMBLER) {
1988 const char *filename_o;
1989 if (mode == CompileAssemble) {
1991 filename_o = outname;
1993 FILE *tempf = make_temp_file(temp, sizeof(temp), "cco");
1998 assemble(filename_o, filename);
2000 size_t len = strlen(filename_o) + 1;
2001 filename = obstack_copy(&file_obst, filename_o, len);
2002 filetype = FILETYPE_OBJECT;
2005 /* ok we're done here, process next file */
2006 file->name = filename;
2007 file->type = filetype;
2010 if (result != EXIT_SUCCESS) {
2016 /* link program file */
2017 if (mode == CompileAssembleLink) {
2018 obstack_1grow(&ldflags_obst, '\0');
2019 const char *flags = obstack_finish(&ldflags_obst);
2021 /* construct commandline */
2022 const char *linker = getenv("CPARSER_LINK");
2023 if (linker != NULL) {
2024 obstack_printf(&file_obst, "%s ", linker);
2026 if (target_triple != NULL)
2027 obstack_printf(&file_obst, "%s-", target_triple);
2028 obstack_printf(&file_obst, "%s ", LINKER);
2031 for (file_list_entry_t *entry = files; entry != NULL;
2032 entry = entry->next) {
2033 if (entry->type != FILETYPE_OBJECT)
2036 add_flag(&file_obst, "%s", entry->name);
2039 add_flag(&file_obst, "-o");
2040 add_flag(&file_obst, outname);
2041 obstack_printf(&file_obst, "%s", flags);
2042 obstack_1grow(&file_obst, '\0');
2044 char *commandline = obstack_finish(&file_obst);
2049 int err = system(commandline);
2050 if (err != EXIT_SUCCESS) {
2051 fprintf(stderr, "linker reported an error\n");
2052 return EXIT_FAILURE;
2059 obstack_free(&cppflags_obst, NULL);
2060 obstack_free(&ldflags_obst, NULL);
2061 obstack_free(&asflags_obst, NULL);
2062 obstack_free(&file_obst, NULL);
2073 exit_symbol_table();
2074 return EXIT_SUCCESS;