/* * TCC - Tiny C Compiler * * Copyright (c) 2001-2004 Fabrice Bellard * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #if defined NOTALLINONE || defined TCC_USE_LIBTCC #include "tcc.h" #else #include "libtcc.c" #endif static char **files; static int nb_files, nb_libraries; static int multiple_files; static int print_search_dirs; static int output_type; static int reloc_output; static const char *outfile; static int do_bench = 0; static int gen_deps; static const char *deps_outfile; #define TCC_OPTION_HAS_ARG 0x0001 #define TCC_OPTION_NOSEP 0x0002 /* cannot have space before option and arg */ static void help(void) { printf("tcc version " TCC_VERSION " - Tiny C Compiler - Copyright (C) 2001-2006 Fabrice Bellard\n" "Usage: tcc [options...] [-o outfile] [-c] infile(s)...\n" " tcc [options...] -run infile [arguments...]\n" "General options:\n" " -v display current version, increase verbosity\n" " -c compile only - generate an object file\n" " -o outfile set output filename\n" " -Bdir set tcc internal library path\n" " -bench output compilation statistics\n" " -run run compiled source\n" " -fflag set or reset (with 'no-' prefix) 'flag' (see man page)\n" " -Wwarning set or reset (with 'no-' prefix) 'warning' (see man page)\n" " -w disable all warnings\n" "Preprocessor options:\n" " -E preprocess only\n" " -Idir add include path 'dir'\n" " -Dsym[=val] define 'sym' with value 'val'\n" " -Usym undefine 'sym'\n" "Linker options:\n" " -Ldir add library path 'dir'\n" " -llib link with dynamic or static library 'lib'\n" " -pthread link with -lpthread and -D_REENTRANT (POSIX Linux)\n" " -shared generate a shared library\n" " -soname set name for shared library to be used at runtime\n" " -static static linking\n" " -rdynamic export all global symbols to dynamic linker\n" " -r generate (relocatable) object file\n" "Debugger options:\n" " -g generate runtime debug info\n" #ifdef CONFIG_TCC_BCHECK " -b compile with built-in memory and bounds checker (implies -g)\n" #endif #ifdef CONFIG_TCC_BACKTRACE " -bt N show N callers in stack traces\n" #endif "Misc options:\n" " -MD generate target dependencies for make\n" " -MF depfile put generated dependencies here\n" ); } typedef struct TCCOption { const char *name; uint16_t index; uint16_t flags; } TCCOption; enum { TCC_OPTION_HELP, TCC_OPTION_I, TCC_OPTION_D, TCC_OPTION_U, TCC_OPTION_L, TCC_OPTION_B, TCC_OPTION_l, TCC_OPTION_bench, TCC_OPTION_bt, TCC_OPTION_b, TCC_OPTION_g, TCC_OPTION_c, TCC_OPTION_static, TCC_OPTION_shared, TCC_OPTION_soname, TCC_OPTION_o, TCC_OPTION_r, TCC_OPTION_s, TCC_OPTION_Wl, TCC_OPTION_W, TCC_OPTION_O, TCC_OPTION_m, TCC_OPTION_f, TCC_OPTION_nostdinc, TCC_OPTION_nostdlib, TCC_OPTION_print_search_dirs, TCC_OPTION_rdynamic, TCC_OPTION_pthread, TCC_OPTION_run, TCC_OPTION_v, TCC_OPTION_w, TCC_OPTION_pipe, TCC_OPTION_E, TCC_OPTION_MD, TCC_OPTION_MF, TCC_OPTION_x, }; static const TCCOption tcc_options[] = { { "h", TCC_OPTION_HELP, 0 }, { "-help", TCC_OPTION_HELP, 0 }, { "?", TCC_OPTION_HELP, 0 }, { "I", TCC_OPTION_I, TCC_OPTION_HAS_ARG }, { "D", TCC_OPTION_D, TCC_OPTION_HAS_ARG }, { "U", TCC_OPTION_U, TCC_OPTION_HAS_ARG }, { "L", TCC_OPTION_L, TCC_OPTION_HAS_ARG }, { "B", TCC_OPTION_B, TCC_OPTION_HAS_ARG }, { "l", TCC_OPTION_l, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, { "bench", TCC_OPTION_bench, 0 }, #ifdef CONFIG_TCC_BACKTRACE { "bt", TCC_OPTION_bt, TCC_OPTION_HAS_ARG }, #endif #ifdef CONFIG_TCC_BCHECK { "b", TCC_OPTION_b, 0 }, #endif { "g", TCC_OPTION_g, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, { "c", TCC_OPTION_c, 0 }, { "static", TCC_OPTION_static, 0 }, { "shared", TCC_OPTION_shared, 0 }, { "soname", TCC_OPTION_soname, TCC_OPTION_HAS_ARG }, { "o", TCC_OPTION_o, TCC_OPTION_HAS_ARG }, { "pthread", TCC_OPTION_pthread, 0}, { "run", TCC_OPTION_run, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, { "rdynamic", TCC_OPTION_rdynamic, 0 }, { "r", TCC_OPTION_r, 0 }, { "s", TCC_OPTION_s, 0 }, { "Wl,", TCC_OPTION_Wl, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, { "W", TCC_OPTION_W, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, { "O", TCC_OPTION_O, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, { "m", TCC_OPTION_m, TCC_OPTION_HAS_ARG }, { "f", TCC_OPTION_f, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, { "nostdinc", TCC_OPTION_nostdinc, 0 }, { "nostdlib", TCC_OPTION_nostdlib, 0 }, { "print-search-dirs", TCC_OPTION_print_search_dirs, 0 }, { "v", TCC_OPTION_v, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, { "w", TCC_OPTION_w, 0 }, { "pipe", TCC_OPTION_pipe, 0}, { "E", TCC_OPTION_E, 0}, { "MD", TCC_OPTION_MD, 0}, { "MF", TCC_OPTION_MF, TCC_OPTION_HAS_ARG }, { "x", TCC_OPTION_x, TCC_OPTION_HAS_ARG }, { NULL }, }; static int64_t getclock_us(void) { #ifdef _WIN32 struct _timeb tb; _ftime(&tb); return (tb.time * 1000LL + tb.millitm) * 1000LL; #else struct timeval tv; gettimeofday(&tv, NULL); return tv.tv_sec * 1000000LL + tv.tv_usec; #endif } /* convert 'str' into an array of space separated strings */ static int expand_args(char ***pargv, const char *str) { const char *s1; char **argv, *arg; int argc, len; argc = 0; argv = NULL; for(;;) { while (is_space(*str)) str++; if (*str == '\0') break; s1 = str; while (*str != '\0' && !is_space(*str)) str++; len = str - s1; arg = tcc_malloc(len + 1); memcpy(arg, s1, len); arg[len] = '\0'; dynarray_add((void ***)&argv, &argc, arg); } *pargv = argv; return argc; } static int parse_args(TCCState *s, int argc, char **argv) { int optind; const TCCOption *popt; const char *optarg, *p1, *r1; char *r; optind = 0; while (optind < argc) { r = argv[optind++]; if (r[0] != '-' || r[1] == '\0') { /* add a new file */ dynarray_add((void ***)&files, &nb_files, r); if (!multiple_files) { optind--; /* argv[0] will be this file */ break; } } else { /* find option in table (match only the first chars */ popt = tcc_options; for(;;) { p1 = popt->name; if (p1 == NULL) error("invalid option -- '%s'", r); r1 = r + 1; for(;;) { if (*p1 == '\0') goto option_found; if (*r1 != *p1) break; p1++; r1++; } popt++; } option_found: if (popt->flags & TCC_OPTION_HAS_ARG) { if (*r1 != '\0' || (popt->flags & TCC_OPTION_NOSEP)) { optarg = r1; } else { if (optind >= argc) error("argument to '%s' is missing", r); optarg = argv[optind++]; } } else { if (*r1 != '\0') return 0; optarg = NULL; } switch(popt->index) { case TCC_OPTION_HELP: return 0; case TCC_OPTION_I: if (tcc_add_include_path(s, optarg) < 0) error("too many include paths"); break; case TCC_OPTION_D: { char *sym, *value; sym = (char *)optarg; value = strchr(sym, '='); if (value) { *value = '\0'; value++; } tcc_define_symbol(s, sym, value); } break; case TCC_OPTION_U: tcc_undefine_symbol(s, optarg); break; case TCC_OPTION_L: tcc_add_library_path(s, optarg); break; case TCC_OPTION_B: /* set tcc utilities path (mainly for tcc development) */ tcc_set_lib_path(s, optarg); break; case TCC_OPTION_l: dynarray_add((void ***)&files, &nb_files, r); nb_libraries++; break; case TCC_OPTION_pthread: /* fixme: these options could be different on your platform */ if(output_type != TCC_OUTPUT_OBJ){ dynarray_add((void ***)&files, &nb_files, "-lpthread"); nb_libraries++; } tcc_define_symbol(s, "_REENTRANT", "1"); break; case TCC_OPTION_bench: do_bench = 1; break; #ifdef CONFIG_TCC_BACKTRACE case TCC_OPTION_bt: set_num_callers(atoi(optarg)); break; #endif #ifdef CONFIG_TCC_BCHECK case TCC_OPTION_b: s->do_bounds_check = 1; s->do_debug = 1; break; #endif case TCC_OPTION_g: s->do_debug = 1; break; case TCC_OPTION_c: multiple_files = 1; output_type = TCC_OUTPUT_OBJ; break; case TCC_OPTION_static: s->static_link = 1; break; case TCC_OPTION_shared: output_type = TCC_OUTPUT_DLL; break; case TCC_OPTION_soname: s->soname = optarg; break; case TCC_OPTION_o: multiple_files = 1; outfile = optarg; break; case TCC_OPTION_r: /* generate a .o merging several output files */ reloc_output = 1; output_type = TCC_OUTPUT_OBJ; break; case TCC_OPTION_nostdinc: s->nostdinc = 1; break; case TCC_OPTION_nostdlib: s->nostdlib = 1; break; case TCC_OPTION_print_search_dirs: print_search_dirs = 1; break; case TCC_OPTION_run: { int argc1; char **argv1; argc1 = expand_args(&argv1, optarg); if (argc1 > 0) { parse_args(s, argc1, argv1); } multiple_files = 0; output_type = TCC_OUTPUT_MEMORY; } break; case TCC_OPTION_v: do { if (0 == s->verbose++) printf("tcc version %s\n", TCC_VERSION); } while (*optarg++ == 'v'); break; case TCC_OPTION_f: if (tcc_set_flag(s, optarg, 1) < 0 && s->warn_unsupported) goto unsupported_option; break; case TCC_OPTION_W: if (tcc_set_warning(s, optarg, 1) < 0 && s->warn_unsupported) goto unsupported_option; break; case TCC_OPTION_w: s->warn_none = 1; break; case TCC_OPTION_rdynamic: s->rdynamic = 1; break; case TCC_OPTION_Wl: { if ((r = (char *) tcc_set_linker(s, (char *)optarg, TRUE))) error("unsupported linker option '%s'", r); } break; case TCC_OPTION_E: output_type = TCC_OUTPUT_PREPROCESS; break; case TCC_OPTION_MD: gen_deps = 1; break; case TCC_OPTION_MF: deps_outfile = optarg; break; case TCC_OPTION_x: break; default: if (s->warn_unsupported) { unsupported_option: warning("unsupported option '%s'", r); } break; } } } return optind + 1; } int main(int argc, char **argv) { int i; TCCState *s; int nb_objfiles, ret, optind; int64_t start_time = 0; s = tcc_new(); output_type = TCC_OUTPUT_EXE; outfile = NULL; multiple_files = 1; files = NULL; nb_files = 0; nb_libraries = 0; reloc_output = 0; print_search_dirs = 0; ret = 0; optind = parse_args(s, argc - 1, argv + 1); if (print_search_dirs) { /* enough for Linux kernel */ printf("install: %s/\n", s->tcc_lib_path); return 0; } if (optind == 0 || nb_files == 0) { if (optind && s->verbose) return 0; help(); return 1; } nb_objfiles = nb_files - nb_libraries; /* if outfile provided without other options, we output an executable */ if (outfile && output_type == TCC_OUTPUT_MEMORY) output_type = TCC_OUTPUT_EXE; /* check -c consistency : only single file handled. XXX: checks file type */ if (output_type == TCC_OUTPUT_OBJ && !reloc_output) { /* accepts only a single input file */ if (nb_objfiles != 1) error("cannot specify multiple files with -c"); if (nb_libraries != 0) error("cannot specify libraries with -c"); } if (output_type == TCC_OUTPUT_PREPROCESS) { if (!outfile) { s->outfile = stdout; } else { s->outfile = fopen(outfile, "w"); if (!s->outfile) error("could not open '%s'", outfile); } } if (do_bench) { start_time = getclock_us(); } tcc_set_output_type(s, output_type); s->reloc_output = reloc_output; /* compile or add each files or library */ for(i = 0; i < nb_files && ret == 0; i++) { const char *filename; filename = files[i]; if (filename[0] == '-' && filename[1] == 'l') { if (tcc_add_library(s, filename + 2) < 0) { error_noabort("cannot find %s", filename); ret = 1; } } else { if (1 == s->verbose) printf("-> %s\n", filename); if (tcc_add_file(s, filename) < 0) ret = 1; } } /* free all files */ tcc_free(files); if (0 == ret) { if (do_bench) tcc_print_stats(s, getclock_us() - start_time); if (s->output_type == TCC_OUTPUT_MEMORY) ret = tcc_run(s, argc - optind, argv + optind); else { if (s->output_type == TCC_OUTPUT_PREPROCESS) { if (outfile) fclose(s->outfile); } else { ret = tcc_output_file(s, outfile ? outfile : tcc_default_target(s)); ret = ret ? 1 : 0; } /* dump collected dependencies */ if (gen_deps && !ret) tcc_gen_makedeps(s, outfile, deps_outfile); } } tcc_delete(s); #ifdef MEM_DEBUG if (do_bench) { printf("memory: %d bytes, max = %d bytes\n", mem_cur_size, mem_max_size); } #endif return ret; }