diff options
Diffstat (limited to 'tinyc/tcc.c')
| -rwxr-xr-x | tinyc/tcc.c | 553 |
1 files changed, 553 insertions, 0 deletions
diff --git a/tinyc/tcc.c b/tinyc/tcc.c new file mode 100755 index 000000000..3fce60804 --- /dev/null +++ b/tinyc/tcc.c @@ -0,0 +1,553 @@ +/* + * 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 + */ + +#include "libtcc.c" + +void help(void) +{ + printf("tcc version " TCC_VERSION " - Tiny C Compiler - Copyright (C) 2001-2006 Fabrice Bellard\n" + "usage: tcc [-v] [-c] [-o outfile] [-Bdir] [-bench] [-Idir] [-Dsym[=val]] [-Usym]\n" + " [-Wwarn] [-g] [-b] [-bt N] [-Ldir] [-llib] [-shared] [-soname name]\n" + " [-static] [infile1 infile2...] [-run infile args...]\n" + "\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" + " -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 + ); +} + +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; + +#define TCC_OPTION_HAS_ARG 0x0001 +#define TCC_OPTION_NOSEP 0x0002 /* cannot have space before option and arg */ + +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_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_run, + TCC_OPTION_v, + TCC_OPTION_w, + TCC_OPTION_pipe, + TCC_OPTION_E, +}; + +static const TCCOption tcc_options[] = { + { "h", 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 }, + { "bt", TCC_OPTION_bt, TCC_OPTION_HAS_ARG }, +#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 }, + { "run", TCC_OPTION_run, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, + { "rdynamic", TCC_OPTION_rdynamic, 0 }, + { "r", TCC_OPTION_r, 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}, + { 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 +} + +static int strstart(const char *str, const char *val, const char **ptr) +{ + const char *p, *q; + p = str; + q = val; + while (*q != '\0') { + if (*p != *q) + return 0; + p++; + q++; + } + if (ptr) + *ptr = p; + return 1; +} + +/* 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; +} + +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_bench: + do_bench = 1; + break; +#ifdef CONFIG_TCC_BACKTRACE + case TCC_OPTION_bt: + 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: + { + const char *p; + if (strstart(optarg, "-Ttext,", &p)) { + s->text_addr = strtoul(p, NULL, 16); + s->has_text_addr = 1; + } else if (strstart(optarg, "--oformat,", &p)) { + if (strstart(p, "elf32-", NULL)) { + s->output_format = TCC_OUTPUT_FORMAT_ELF; + } else if (!strcmp(p, "binary")) { + s->output_format = TCC_OUTPUT_FORMAT_BINARY; + } else +#ifdef TCC_TARGET_COFF + if (!strcmp(p, "coff")) { + s->output_format = TCC_OUTPUT_FORMAT_COFF; + } else +#endif + { + error("target %s not found", p); + } + } else { + error("unsupported linker option '%s'", optarg); + } + } + break; + case TCC_OPTION_E: + output_type = TCC_OUTPUT_PREPROCESS; + 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; + char objfilename[1024]; + int64_t start_time = 0; + + s = tcc_new(); +#ifdef _WIN32 + tcc_set_lib_path_w32(s); +#endif + 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); + } + } else if (output_type != TCC_OUTPUT_MEMORY) { + if (!outfile) { + /* compute default outfile name */ + char *ext; + const char *name = + strcmp(files[0], "-") == 0 ? "a" : tcc_basename(files[0]); + pstrcpy(objfilename, sizeof(objfilename), name); + ext = tcc_fileextension(objfilename); +#ifdef TCC_TARGET_PE + if (output_type == TCC_OUTPUT_DLL) + strcpy(ext, ".dll"); + else + if (output_type == TCC_OUTPUT_EXE) + strcpy(ext, ".exe"); + else +#endif + if (output_type == TCC_OUTPUT_OBJ && !reloc_output && *ext) + strcpy(ext, ".o"); + else + pstrcpy(objfilename, sizeof(objfilename), "a.out"); + outfile = objfilename; + } + } + + if (do_bench) { + start_time = getclock_us(); + } + + tcc_set_output_type(s, output_type); + + /* 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]) { + 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 (ret) + goto the_end; + + if (do_bench) + tcc_print_stats(s, getclock_us() - start_time); + + if (s->output_type == TCC_OUTPUT_PREPROCESS) { + if (outfile) + fclose(s->outfile); + } else if (s->output_type == TCC_OUTPUT_MEMORY) { + ret = tcc_run(s, argc - optind, argv + optind); + } else + ret = tcc_output_file(s, outfile) ? 1 : 0; + the_end: + /* XXX: cannot do it with bound checking because of the malloc hooks */ + if (!s->do_bounds_check) + 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; +} + |