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 const char help
[] =
28 "Tiny C Compiler "TCC_VERSION
" - Copyright (C) 2001-2006 Fabrice Bellard\n"
29 "Usage: tcc [options...] [-o outfile] [-c] infile(s)...\n"
30 " tcc [options...] -run infile [arguments...]\n"
32 " -c compile only - generate an object file\n"
33 " -o outfile set output filename\n"
34 " -run run compiled source\n"
35 " -fflag set or reset (with 'no-' prefix) 'flag' (see tcc -hh)\n"
36 " -std=c99 Conform to the ISO 1999 C standard (default).\n"
37 " -std=c11 Conform to the ISO 2011 C standard.\n"
38 " -Wwarning set or reset (with 'no-' prefix) 'warning' (see tcc -hh)\n"
39 " -w disable all warnings\n"
40 " --version -v show version\n"
41 " -vv show search paths or loaded files\n"
42 " -h -hh show this, show more help\n"
43 " -bench show compilation statistics\n"
44 " - use stdin pipe as infile\n"
45 " @listfile read arguments from listfile\n"
46 "Preprocessor options:\n"
47 " -Idir add include path 'dir'\n"
48 " -Dsym[=val] define 'sym' with value 'val'\n"
49 " -Usym undefine 'sym'\n"
50 " -E preprocess only\n"
51 " -C keep comments (not yet implemented)\n"
53 " -Ldir add library path 'dir'\n"
54 " -llib link with dynamic or static library 'lib'\n"
55 " -r generate (relocatable) object file\n"
56 " -shared generate a shared library/dll\n"
57 " -rdynamic export all global symbols to dynamic linker\n"
58 " -soname set name for shared library to be used at runtime\n"
59 " -Wl,-opt[=val] set linker option (see tcc -hh)\n"
61 " -g generate runtime debug info\n"
62 #ifdef CONFIG_TCC_BCHECK
63 " -b compile with built-in memory and bounds checker (implies -g)\n"
65 #ifdef CONFIG_TCC_BACKTRACE
66 " -bt[N] link with backtrace (stack dump) support [show max N callers]\n"
69 " -x[c|a|b|n] specify type of the next infile (C,ASM,BIN,NONE)\n"
70 " -nostdinc do not use standard system include paths\n"
71 " -nostdlib do not link with standard crt and libraries\n"
72 " -Bdir set tcc's private include/library dir\n"
73 " -MD generate dependency file for make\n"
74 " -MF file specify dependency file name\n"
75 #if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64)
76 " -m32/64 defer to i386/x86_64 cross compiler\n"
79 " create library : tcc -ar [rcsv] lib.a files\n"
81 " create def file : tcc -impdef lib.dll [-v] [-o lib.def]\n"
85 static const char help2
[] =
86 "Tiny C Compiler "TCC_VERSION
" - More Options\n"
88 " -P -P1 with -E: no/alternative #line output\n"
89 " -dD -dM with -E: output #define directives\n"
90 " -pthread same as -D_REENTRANT and -lpthread\n"
91 " -On same as -D__OPTIMIZE__ for n > 0\n"
92 " -Wp,-opt same as -opt\n"
93 " -include file include 'file' above each input file\n"
94 " -isystem dir add 'dir' to system include path\n"
95 " -static link to static libraries (not recommended)\n"
96 " -dumpversion print version\n"
97 " -print-search-dirs print search paths\n"
98 " -dt with -run/-E: auto-define 'test_...' macros\n"
100 " --param -pedantic -pipe -s -traditional\n"
102 " all turn on some (*) warnings\n"
103 " error stop after first warning\n"
104 " unsupported warn about ignored options, pragmas, etc.\n"
105 " write-strings strings are const\n"
106 " implicit-function-declaration warn for missing prototype (*)\n"
107 "-f[no-]... flags:\n"
108 " unsigned-char default char is unsigned\n"
109 " signed-char default char is signed\n"
110 " common use common section instead of bss\n"
111 " leading-underscore decorate extern symbols\n"
112 " ms-extensions allow anonymous struct in struct\n"
113 " dollars-in-identifiers allow '$' in C symbols\n"
114 "-m... target specific options:\n"
115 " ms-bitfields use MSVC bitfield layout\n"
116 #ifdef TCC_TARGET_ARM
117 " float-abi hard/softfp on arm\n"
119 #ifdef TCC_TARGET_X86_64
120 " no-sse disable floats on x86_64\n"
122 "-Wl,... linker options:\n"
123 " -nostdlib do not link with standard crt/libs\n"
124 " -[no-]whole-archive load lib(s) fully/only as needed\n"
125 " -export-all-symbols same as -rdynamic\n"
126 " -export-dynamic same as -rdynamic\n"
127 " -image-base= -Ttext= set base address of executable\n"
128 " -section-alignment= set section alignment in executable\n"
130 " -file-alignment= set PE file alignment\n"
131 " -stack= set PE stack reserve\n"
132 " -large-address-aware set related PE option\n"
133 " -subsystem=[console/windows] set PE subsystem\n"
134 " -oformat=[pe-* binary] set executable output format\n"
135 "Predefined macros:\n"
136 " tcc -E -dM - < nul\n"
138 " -rpath= set dynamic library search path\n"
139 " -enable-new-dtags set DT_RUNPATH instead of DT_RPATH\n"
140 " -soname= set DT_SONAME elf tag\n"
141 " -Bsymbolic set DT_SYMBOLIC elf tag\n"
142 " -oformat=[elf32/64-* binary] set executable output format\n"
143 " -init= -fini= -as-needed -O (ignored)\n"
144 "Predefined macros:\n"
145 " tcc -E -dM - < /dev/null\n"
147 "See also the manual for more details.\n"
150 static const char version
[] =
151 "tcc version "TCC_VERSION
" ("
152 #ifdef TCC_TARGET_I386
154 #elif defined TCC_TARGET_X86_64
156 #elif defined TCC_TARGET_C67
158 #elif defined TCC_TARGET_ARM
160 #elif defined TCC_TARGET_ARM64
162 #elif defined TCC_TARGET_RISCV64
165 #ifdef TCC_ARM_HARDFLOAT
170 #elif defined(TCC_TARGET_MACHO)
172 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
174 #elif defined(__OpenBSD__)
176 #elif defined(__NetBSD__)
184 static void print_dirs(const char *msg
, char **paths
, int nb_paths
)
187 printf("%s:\n%s", msg
, nb_paths
? "" : " -\n");
188 for(i
= 0; i
< nb_paths
; i
++)
189 printf(" %s\n", paths
[i
]);
192 static void print_search_dirs(TCCState
*s
)
194 printf("install: %s\n", s
->tcc_lib_path
);
195 /* print_dirs("programs", NULL, 0); */
196 print_dirs("include", s
->sysinclude_paths
, s
->nb_sysinclude_paths
);
197 print_dirs("libraries", s
->library_paths
, s
->nb_library_paths
);
199 printf("libtcc1:\n %s/lib/"TCC_LIBTCC1
"\n", s
->tcc_lib_path
);
201 printf("libtcc1:\n %s/"TCC_LIBTCC1
"\n", s
->tcc_lib_path
);
202 print_dirs("crt", s
->crt_paths
, s
->nb_crt_paths
);
203 printf("elfinterp:\n %s\n", DEFAULT_ELFINTERP(s
));
207 static void set_environment(TCCState
*s
)
211 path
= getenv("C_INCLUDE_PATH");
213 tcc_add_sysinclude_path(s
, path
);
215 path
= getenv("CPATH");
217 tcc_add_include_path(s
, path
);
219 path
= getenv("LIBRARY_PATH");
221 tcc_add_library_path(s
, path
);
225 static char *default_outputfile(TCCState
*s
, const char *first_file
)
229 const char *name
= "a";
231 if (first_file
&& strcmp(first_file
, "-"))
232 name
= tcc_basename(first_file
);
233 snprintf(buf
, sizeof(buf
), "%s", name
);
234 ext
= tcc_fileextension(buf
);
236 if (s
->output_type
== TCC_OUTPUT_DLL
)
239 if (s
->output_type
== TCC_OUTPUT_EXE
)
243 if (s
->output_type
== TCC_OUTPUT_OBJ
&& !s
->option_r
&& *ext
)
246 strcpy(buf
, "a.out");
247 return tcc_strdup(buf
);
250 static unsigned getclock_ms(void)
253 return GetTickCount();
256 gettimeofday(&tv
, NULL
);
257 return tv
.tv_sec
*1000 + (tv
.tv_usec
+500)/1000;
261 int main(int argc0
, char **argv0
)
264 int ret
, opt
, n
= 0, t
= 0, done
;
265 unsigned start_time
= 0;
266 const char *first_file
;
267 int argc
; char **argv
;
271 argc
= argc0
, argv
= argv0
;
273 opt
= tcc_parse_args(s
, &argc
, &argv
, 1);
276 if (opt
== OPT_HELP
) {
282 if (opt
== OPT_HELP2
) {
283 fputs(help2
, stdout
);
286 if (opt
== OPT_M32
|| opt
== OPT_M64
)
287 tcc_tool_cross(s
, argv
, opt
); /* never returns */
291 return tcc_tool_ar(s
, argc
, argv
);
293 if (opt
== OPT_IMPDEF
)
294 return tcc_tool_impdef(s
, argc
, argv
);
298 if (opt
== OPT_PRINT_DIRS
) {
299 /* initialize search dirs */
301 tcc_set_output_type(s
, TCC_OUTPUT_MEMORY
);
302 print_search_dirs(s
);
306 if (s
->nb_files
== 0)
307 tcc_error("no input files\n");
309 if (s
->output_type
== TCC_OUTPUT_PREPROCESS
) {
310 if (s
->outfile
&& 0!=strcmp("-",s
->outfile
)) {
311 ppfp
= fopen(s
->outfile
, "w");
313 tcc_error("could not write '%s'", s
->outfile
);
315 } else if (s
->output_type
== TCC_OUTPUT_OBJ
&& !s
->option_r
) {
317 tcc_error("cannot specify libraries with -c");
318 if (s
->nb_files
> 1 && s
->outfile
)
319 tcc_error("cannot specify output file with -c many files");
323 start_time
= getclock_ms();
327 if (s
->output_type
== 0)
328 s
->output_type
= TCC_OUTPUT_EXE
;
329 tcc_set_output_type(s
, s
->output_type
);
332 if ((s
->output_type
== TCC_OUTPUT_MEMORY
333 || s
->output_type
== TCC_OUTPUT_PREPROCESS
)
334 && (s
->dflag
& 16)) { /* -dt option */
342 /* compile or add each files or library */
343 first_file
= NULL
, ret
= 0;
345 struct filespec
*f
= s
->files
[n
];
346 s
->filetype
= f
->type
;
347 if (f
->type
& AFF_TYPE_LIB
) {
348 if (tcc_add_library_err(s
, f
->name
) < 0)
352 printf("-> %s\n", f
->name
);
354 first_file
= f
->name
;
355 if (tcc_add_file(s
, f
->name
) < 0)
358 done
= ret
|| ++n
>= s
->nb_files
;
359 } while (!done
&& (s
->output_type
!= TCC_OUTPUT_OBJ
|| s
->option_r
));
363 } else if (s
->output_type
== TCC_OUTPUT_PREPROCESS
) {
365 } else if (0 == ret
) {
366 if (s
->output_type
== TCC_OUTPUT_MEMORY
) {
368 ret
= tcc_run(s
, argc
, argv
);
372 s
->outfile
= default_outputfile(s
, first_file
);
373 if (tcc_output_file(s
, s
->outfile
))
375 else if (s
->gen_deps
)
376 gen_makedeps(s
, s
->outfile
, s
->deps_outfile
);
380 if (s
->do_bench
&& done
&& !(t
| ret
))
381 tcc_print_stats(s
, getclock_ms() - start_time
);
384 goto redo
; /* compile more files with -c */
386 goto redo
; /* run more tests with -dt -run */
387 if (ppfp
&& ppfp
!= stdout
)