2 * TCC - Tiny C Compiler
4 * Copyright (c) 2001-2004 Fabrice Bellard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 static void help(void)
29 printf("tcc version " TCC_VERSION " - Tiny C Compiler - Copyright (C) 2001-2006 Fabrice Bellard\n"
30 "Usage: tcc [options...] [-o outfile] [-c] infile(s)...\n"
31 " tcc [options...] -run infile [arguments...]\n"
33 " -c compile only - generate an object file\n"
34 " -o outfile set output filename\n"
35 " -run run compiled source\n"
36 " -fflag set or reset (with 'no-' prefix) 'flag' (see man page)\n"
37 " -Wwarning set or reset (with 'no-' prefix) 'warning' (see man page)\n"
38 " -w disable all warnings\n"
40 " -vv show included files (as sole argument: show search paths)\n"
42 " -bench show compilation statistics\n"
43 "Preprocessor options:\n"
44 " -E preprocess only\n"
45 " -Idir add include path 'dir'\n"
46 " -Dsym[=val] define 'sym' with value 'val'\n"
47 " -Usym undefine 'sym'\n"
49 " -Ldir add library path 'dir'\n"
50 " -llib link with dynamic or static library 'lib'\n"
51 " -pthread link with -lpthread and -D_REENTRANT (POSIX Linux)\n"
52 " -r generate (relocatable) object file\n"
53 " -rdynamic export all global symbols to dynamic linker\n"
54 " -shared generate a shared library\n"
55 " -soname set name for shared library to be used at runtime\n"
56 " -static static linking\n"
57 " -Wl,-opt[=val] set linker option (see manual)\n"
59 " -g generate runtime debug info\n"
60 #ifdef CONFIG_TCC_BCHECK
61 " -b compile with built-in memory and bounds checker (implies -g)\n"
63 #ifdef CONFIG_TCC_BACKTRACE
64 " -bt N show N callers in stack traces\n"
67 " -nostdinc do not use standard system include paths\n"
68 " -nostdlib do not link with standard crt and libraries\n"
69 " -Bdir use 'dir' as tcc internal library and include path\n"
70 " -MD generate target dependencies for make\n"
71 " -MF depfile put generated dependencies here\n"
72 " -norunsrc Do not compile the file which is the first argument after -run.\n"
76 /* re-execute the i386/x86_64 cross-compilers with tcc -m32/-m64: */
77 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
80 static int execvp_win32(const char *prog, char **argv)
82 int ret = spawnvp(P_NOWAIT, prog, (char const*const*)argv);
85 cwait(&ret, ret, WAIT_CHILD);
88 #define execvp execvp_win32
90 static void exec_other_tcc(TCCState *s, char **argv, const char *optarg)
92 char child_path[4096], *child_name; const char *target;
93 switch (atoi(optarg)) {
94 #ifdef TCC_TARGET_I386
96 case 64: target = "x86_64";
99 case 32: target = "i386";
101 pstrcpy(child_path, sizeof child_path - 40, argv[0]);
102 child_name = tcc_basename(child_path);
103 strcpy(child_name, target);
105 strcat(child_name, "-win32");
107 strcat(child_name, "-tcc");
108 if (strcmp(argv[0], child_path)) {
110 printf("tcc: using '%s'\n", child_name), fflush(stdout);
111 execvp(argv[0] = child_path, argv);
113 tcc_error("'%s' not found", child_name);
114 case 0: /* ignore -march etc. */
117 tcc_warning("unsupported option \"-m%s\"", optarg);
121 #define exec_other_tcc(s, argv, optarg)
124 static void gen_makedeps(TCCState *s, const char *target, const char *filename)
127 char buf[1024], *ext;
131 /* compute filename automatically
132 * dir/file.o -> dir/file.d */
133 pstrcpy(buf, sizeof(buf), target);
134 ext = tcc_fileextension(buf);
135 pstrcpy(ext, sizeof(buf) - (ext-buf), ".d");
140 printf("<- %s\n", filename);
142 /* XXX return err codes instead of error() ? */
143 depout = fopen(filename, "w");
145 tcc_error("could not open '%s'", filename);
147 fprintf(depout, "%s : \\\n", target);
148 for (i=0; i<s->nb_target_deps; ++i)
149 fprintf(depout, " %s \\\n", s->target_deps[i]);
150 fprintf(depout, "\n");
154 static char *default_outputfile(TCCState *s, const char *first_file)
158 const char *name = "a";
160 if (first_file && strcmp(first_file, "-"))
161 name = tcc_basename(first_file);
162 pstrcpy(buf, sizeof(buf), name);
163 ext = tcc_fileextension(buf);
165 if (s->output_type == TCC_OUTPUT_DLL)
168 if (s->output_type == TCC_OUTPUT_EXE)
172 if (( (s->output_type == TCC_OUTPUT_OBJ && !s->option_r) ||
173 (s->output_type == TCC_OUTPUT_PREPROCESS) )
177 strcpy(buf, "a.out");
179 return tcc_strdup(buf);
182 static void print_paths(const char *msg, char **paths, int nb_paths)
185 printf("%s:\n%s", msg, nb_paths ? "" : " -\n");
186 for(i = 0; i < nb_paths; i++)
187 printf(" %s\n", paths[i]);
190 static void display_info(TCCState *s, int what)
194 printf("tcc version %s ("
195 #ifdef TCC_TARGET_I386
197 # ifdef TCC_TARGET_PE
200 #elif defined TCC_TARGET_X86_64
202 # ifdef TCC_TARGET_PE
205 #elif defined TCC_TARGET_ARM
207 # ifdef TCC_ARM_HARDFLOAT
210 # ifdef TCC_TARGET_PE
214 #ifndef TCC_TARGET_PE
222 printf("install: %s/\n", s->tcc_lib_path);
223 /* print_paths("programs", NULL, 0); */
224 print_paths("crt", s->crt_paths, s->nb_crt_paths);
225 print_paths("libraries", s->library_paths, s->nb_library_paths);
226 print_paths("include", s->sysinclude_paths, s->nb_sysinclude_paths);
227 printf("elfinterp:\n %s\n", CONFIG_TCC_ELFINTERP);
232 static int64_t getclock_us(void)
237 return (tb.time * 1000LL + tb.millitm) * 1000LL;
240 gettimeofday(&tv, NULL);
241 return tv.tv_sec * 1000000LL + tv.tv_usec;
245 int main(int argc, char **argv)
248 int ret, optind, i, bench;
249 int64_t start_time = 0;
250 const char *first_file = NULL;
253 s->output_type = TCC_OUTPUT_EXE;
255 optind = tcc_parse_args(s, argc - 1, argv + 1);
256 tcc_set_environment(s);
264 exec_other_tcc(s, argv, s->option_m);
269 if (s->print_search_dirs || (s->verbose == 2 && optind == 1)) {
270 tcc_set_output_type(s, TCC_OUTPUT_MEMORY);
275 if (s->verbose && optind == 1)
278 if (s->nb_files == 0)
279 tcc_error("no input files\n");
281 /* check -c consistency : only single file handled. XXX: checks file type */
282 if (s->output_type == TCC_OUTPUT_OBJ && !s->option_r) {
283 if (s->nb_libraries != 0)
284 tcc_error("cannot specify libraries with -c");
285 /* accepts only a single input file */
286 if (s->nb_files != 1)
287 tcc_error("cannot specify multiple files with -c");
290 if (s->output_type == TCC_OUTPUT_PREPROCESS) {
294 s->ppfp = fopen(s->outfile, "w");
296 tcc_error("could not write '%s'", s->outfile);
302 start_time = getclock_us();
304 tcc_set_output_type(s, s->output_type);
306 /* compile or add each files or library */
307 for(i = ret = 0; i < s->nb_files && ret == 0; i++) {
308 const char *filename;
310 filename = s->files[i];
311 if (filename[0] == '-' && filename[1] == 'l') {
312 if (tcc_add_library(s, filename + 2) < 0) {
313 tcc_error_noabort("cannot find '%s'", filename);
318 printf("-> %s\n", filename);
319 if (tcc_add_file(s, filename) < 0)
322 first_file = filename;
328 tcc_print_stats(s, getclock_us() - start_time);
330 if (s->output_type == TCC_OUTPUT_MEMORY) {
332 ret = tcc_run(s, argc - 1 - optind, argv + 1 + optind);
334 tcc_error_noabort("-run is not available in a cross compiler");
337 } else if (s->output_type == TCC_OUTPUT_PREPROCESS) {
342 s->outfile = default_outputfile(s, first_file);
343 ret = !!tcc_output_file(s, s->outfile);
344 /* dump collected dependencies */
345 if (s->gen_deps && !ret)
346 gen_makedeps(s, s->outfile, s->deps_outfile);