/* *  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 */ #ifndef ONE_SOURCE# define ONE_SOURCE 1#endif #include "tcc.h"#if ONE_SOURCE# include "libtcc.c"#endif#include "tcctools.c" static const char help[] =    "Tiny C Compiler "TCC_VERSION" - Copyright (C) 2001-2006 Fabrice Bellard\n"    "Usage: tcc [options...] [-o outfile] [-c] infile(s)...\n"    "       tcc [options...] -run infile (or --) [arguments...]\n"    "General options:\n"    "  -c           compile only - generate an object file\n"    "  -o outfile   set output filename\n"    "  -run         run compiled source\n"    "  -fflag       set or reset (with 'no-' prefix) 'flag' (see tcc -hh)\n"    "  -Wwarning    set or reset (with 'no-' prefix) 'warning' (see tcc -hh)\n"    "  -w           disable all warnings\n"    "  -v --version show version\n"    "  -vv          show search paths or loaded files\n"    "  -h -hh       show this, show more help\n"    "  -bench       show compilation statistics\n"    "  -            use stdin pipe as infile\n"    "  @listfile    read arguments from listfile\n"    "Preprocessor options:\n"    "  -Idir        add include path 'dir'\n"    "  -Dsym[=val]  define 'sym' with value 'val'\n"    "  -Usym        undefine 'sym'\n"    "  -E           preprocess only\n"    "  -nostdinc    do not use standard system include paths\n"    "Linker options:\n"    "  -Ldir        add library path 'dir'\n"    "  -llib        link with dynamic or static library 'lib'\n"    "  -nostdlib    do not link with standard crt and libraries\n"    "  -r           generate (relocatable) object file\n"    "  -rdynamic    export all global symbols to dynamic linker\n"    "  -shared      generate a shared library/dll\n"    "  -soname      set name for shared library to be used at runtime\n"    "  -Wl,-opt[=val]  set linker option (see tcc -hh)\n"    "Debugger options:\n"    "  -g           generate stab runtime debug info\n"    "  -gdwarf[-x]  generate dwarf runtime debug info\n"#ifdef TCC_TARGET_PE    "  -g.pdb       create .pdb debug database\n"#endif#ifdef CONFIG_TCC_BCHECK    "  -b           compile with built-in memory and bounds checker (implies -g)\n"#endif#ifdef CONFIG_TCC_BACKTRACE    "  -bt[N]       link with backtrace (stack dump) support [show max N callers]\n"#endif    "Misc. options:\n"    "  -std=version define __STDC_VERSION__ according to version (c11/gnu11)\n"    "  -x[c|a|b|n]  specify type of the next infile (C,ASM,BIN,NONE)\n"    "  -Bdir        set tcc's private include/library dir\n"    "  -M[M]D       generate make dependency file [ignore system files]\n"    "  -M[M]        as above but no other output\n"    "  -MF file     specify dependency file name\n"#if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64)    "  -m32/64      defer to i386/x86_64 cross compiler\n"#endif    "Tools:\n"    "  create library  : tcc -ar [crstvx] lib [files]\n"#ifdef TCC_TARGET_PE    "  create def file : tcc -impdef lib.dll [-v] [-o lib.def]\n"#endif    "Discussion & bug reports:\n"    "  https://lists.nongnu.org/mailman/listinfo/tinycc-devel\n"    ; static const char help2[] =    "Tiny C Compiler "TCC_VERSION" - More Options\n"    "Special options:\n"    "  -P -P1                        with -E: no/alternative #line output\n"    "  -dD -dM                       with -E: output #define directives\n"    "  -pthread                      same as -D_REENTRANT and -lpthread\n"    "  -On                           same as -D__OPTIMIZE__ for n > 0\n"    "  -Wp,-opt                      same as -opt\n"    "  -include file                 include 'file' above each input file\n"    "  -nostdlib                     do not link with standard crt/libs\n"    "  -isystem dir                  add 'dir' to system include path\n"    "  -static                       link to static libraries (not recommended)\n"    "  -dumpversion                  print version\n"    "  -print-search-dirs            print search paths\n"    "  -rstdin file                  with -run: use 'file' as custom stdin\n"    "  -dt                           with -run/-E: auto-define 'test_...' macros\n"    "Ignored options:\n"    "  -arch -C --param -pedantic -pipe -s -traditional\n"    "-W[no-]... warnings:\n"    "  all                           turn on some (*) warnings\n"    "  error[=warning]               stop after warning (any or specified)\n"    "  write-strings                 strings are const\n"    "  unsupported                   warn about ignored options, pragmas, etc.\n"    "  implicit-function-declaration warn for missing prototype (*)\n"    "  discarded-qualifiers          warn when const is dropped (*)\n"    "-f[no-]... flags:\n"    "  unsigned-char                 default char is unsigned\n"    "  signed-char                   default char is signed\n"    "  common                        use common section instead of bss\n"    "  leading-underscore            decorate extern symbols\n"    "  ms-extensions                 allow anonymous struct in struct\n"    "  dollars-in-identifiers        allow '$' in C symbols\n"    "  reverse-funcargs              evaluate function arguments right to left\n"    "  gnu89-inline                  'extern inline' is like 'static inline'\n"    "  asynchronous-unwind-tables    create eh_frame section [on]\n"    "  test-coverage                 create code coverage code\n"    "-m... target specific options:\n"    "  ms-bitfields                  use MSVC bitfield layout\n"#ifdef TCC_TARGET_ARM    "  float-abi                     hard/softfp on arm\n"#endif#ifdef TCC_TARGET_X86_64    "  no-sse                        disable floats on x86_64\n"#endif    "-Wl,... linker options:\n"    "  -nostdlib                     do not search standard library paths\n"    "  -[no-]whole-archive           load lib(s) fully/only as needed\n"    "  -export-all-symbols           same as -rdynamic\n"    "  -export-dynamic               same as -rdynamic\n"    "  -image-base= -Ttext=          set base address of executable\n"    "  -section-alignment=           set section alignment in executable\n"#ifdef TCC_TARGET_PE    "  -file-alignment=              set PE file alignment\n"    "  -stack=                       set PE stack reserve\n"    "  -large-address-aware          set related PE option\n"    "  -subsystem=[console/windows]  set PE subsystem\n"    "  -oformat=[pe-* binary]        set executable output format\n"    "Predefined macros:\n"    "  tcc -E -dM - < nul\n"#else    "  -rpath=                       set dynamic library search path\n"    "  -enable-new-dtags             set DT_RUNPATH instead of DT_RPATH\n"    "  -soname=                      set DT_SONAME elf tag\n"#if defined(TCC_TARGET_MACHO)    "  -install_name=                set DT_SONAME elf tag (soname macOS alias)\n"#else    "  -Ipath, -dynamic-linker=path  set ELF interpreter to path\n"#endif    "  -Bsymbolic                    set DT_SYMBOLIC elf tag\n"    "  -oformat=[elf32/64-* binary]  set executable output format\n"    "  -init= -fini= -Map= -as-needed -O -z= (ignored)\n"    "Predefined macros:\n"    "  tcc -E -dM - < /dev/null\n"#endif    "See also the manual for more details.\n"    ; static const char version[] =    "tcc version "TCC_VERSION#ifdef TCC_GITHASH    " "TCC_GITHASH#endif    " ("#ifdef TCC_TARGET_I386        "i386"#elif defined TCC_TARGET_X86_64        "x86_64"#elif defined TCC_TARGET_C67        "C67"#elif defined TCC_TARGET_ARM        "ARM"# ifdef TCC_ARM_EABI        " eabi"#  ifdef TCC_ARM_HARDFLOAT        "hf"#  endif# endif#elif defined TCC_TARGET_ARM64        "AArch64"#elif defined TCC_TARGET_RISCV64        "riscv64"#endif#ifdef TCC_TARGET_PE        " Windows"#elif defined(TCC_TARGET_MACHO)        " Darwin"#elif TARGETOS_FreeBSD || TARGETOS_FreeBSD_kernel        " FreeBSD"#elif TARGETOS_OpenBSD        " OpenBSD"#elif TARGETOS_NetBSD        " NetBSD"#else        " Linux"#endif    ")\n"    ; static void print_dirs(const char *msg, char **paths, int nb_paths){    int i;    printf("%s:\n%s", msg, nb_paths ? "" : "  -\n");    for(i = 0; i < nb_paths; i++)        printf("  %s\n", paths[i]);} static void print_search_dirs(TCCState *s){    printf("install: %s\n", s->tcc_lib_path);    /* print_dirs("programs", NULL, 0); */    print_dirs("include", s->sysinclude_paths, s->nb_sysinclude_paths);    print_dirs("libraries", s->library_paths, s->nb_library_paths);    printf("libtcc1:\n  %s/%s\n", s->library_paths[0], CONFIG_TCC_CROSSPREFIX TCC_LIBTCC1);#ifdef TCC_TARGET_UNIX    print_dirs("crt", s->crt_paths, s->nb_crt_paths);    printf("elfinterp:\n  %s\n",  s->elfint);#endif} static void set_environment(TCCState *s){    char * path;     path = getenv("C_INCLUDE_PATH");    if(path != NULL) {        tcc_add_sysinclude_path(s, path);    }    path = getenv("CPATH");    if(path != NULL) {        tcc_add_include_path(s, path);    }    path = getenv("LIBRARY_PATH");    if(path != NULL) {        tcc_add_library_path(s, path);    }} static char *default_outputfile(TCCState *s, const char *first_file){    char buf[1024];    char *ext;    const char *name = "a";     if (first_file && strcmp(first_file, "-"))        name = tcc_basename(first_file);    if (strlen(name) + 4 >= sizeof buf)        name = "a";    strcpy(buf, name);    ext = tcc_fileextension(buf);#ifdef TCC_TARGET_PE    if (s->output_type == TCC_OUTPUT_DLL)        strcpy(ext, ".dll");    else    if (s->output_type == TCC_OUTPUT_EXE)        strcpy(ext, ".exe");    else#endif    if ((s->just_deps || s->output_type == TCC_OUTPUT_OBJ) && !s->option_r && *ext)        strcpy(ext, ".o");    else        strcpy(buf, "a.out");    return tcc_strdup(buf);} static unsigned getclock_ms(void){#ifdef _WIN32    return GetTickCount();#else    struct timeval tv;    gettimeofday(&tv, NULL);    return tv.tv_sec*1000 + (tv.tv_usec+500)/1000;#endif} int main(int argc, char **argv){    TCCState *s, *s1;    int ret, opt, n = 0, t = 0, done;    unsigned start_time = 0, end_time = 0;    const char *first_file;    int argc0 = argc;    char **argv0 = argv;    FILE *ppfp = NULL; redo:    argc = argc0, argv = argv0;    s = s1 = tcc_new();    opt = tcc_parse_args(s, &argc, &argv);     if (n == 0) {        ret = 0;        if (opt == OPT_HELP) {            fputs(help, stdout);            if (s->verbose)                goto help2;        } else if (opt == OPT_HELP2) {            help2: fputs(help2, stdout);        } else if (opt == OPT_M32 || opt == OPT_M64) {            ret = tcc_tool_cross(argv, opt);        } else if (s->verbose)            printf("%s", version);         if (opt == OPT_AR)            ret = tcc_tool_ar(argc, argv);#ifdef TCC_TARGET_PE        if (opt == OPT_IMPDEF)            ret = tcc_tool_impdef(argc, argv);#endif        if (opt == OPT_PRINT_DIRS) {            /* initialize search dirs */            set_environment(s);            tcc_set_output_type(s, TCC_OUTPUT_MEMORY);            print_search_dirs(s);        }        if (opt) {            if (opt < 0) err:                ret = 1;            tcc_delete(s);            return ret;        }        if (s->nb_files == 0) {            tcc_error_noabort("no input files");        } else if (s->output_type == TCC_OUTPUT_PREPROCESS) {            if (s->outfile && 0!=strcmp("-",s->outfile)) {                ppfp = tcc_fopen(s->outfile, "wb");                if (!ppfp)                    tcc_error_noabort("could not write '%s'", s->outfile);            }        } else if (s->output_type == TCC_OUTPUT_OBJ && !s->option_r) {            if (s->nb_libraries)                tcc_error_noabort("cannot specify libraries with -c");            else if (s->nb_files > 1 && s->outfile)                tcc_error_noabort("cannot specify output file with -c many files");        }        if (s->nb_errors)            goto err;        if (s->do_bench)            start_time = getclock_ms();    }     set_environment(s);    if (s->output_type == 0)        s->output_type = TCC_OUTPUT_EXE;    ret = tcc_set_output_type(s, s->output_type);    if (ppfp)        s->ppfp = ppfp;     if ((s->output_type == TCC_OUTPUT_MEMORY      || s->output_type == TCC_OUTPUT_PREPROCESS)        && (s->dflag & 16)) { /* -dt option */        if (t)            s->dflag |= 32;        s->run_test = ++t;        if (n)            --n;    }     /* compile or add each files or library */    first_file = NULL;    while (0 == ret) {        struct filespec *f = s->files[n];        s->filetype = f->type;        if (f->type & AFF_TYPE_LIB) {            ret = tcc_add_library(s, f->name);        } else {            if (1 == s->verbose)                printf("-> %s\n", f->name);            if (!first_file)                first_file = f->name;            ret = tcc_add_file(s, f->name);        }        if (++n == s->nb_files)            break;        if (s->output_type == TCC_OUTPUT_OBJ && !s->option_r)            break;    }     if (s->do_bench)        end_time = getclock_ms();     if (s->run_test) {        t = 0;    } else if (s->output_type == TCC_OUTPUT_PREPROCESS) {        ;    } else if (0 == ret) {        if (s->output_type == TCC_OUTPUT_MEMORY) {#ifdef TCC_IS_NATIVE            ret = tcc_run(s, argc, argv);#endif        } else {            if (!s->outfile)                s->outfile = default_outputfile(s, first_file);            if (!s->just_deps)                ret = tcc_output_file(s, s->outfile);            if (!ret && s->gen_deps)                gen_makedeps(s, s->outfile, s->deps_outfile);        }    }     done = 1;    if (t)        done = 0; /* run more tests with -dt -run */    else if (ret) {        if (s->nb_errors)            ret = 1;        /* else keep the original exit code from tcc_run() */    } else if (n < s->nb_files)        done = 0; /* compile more files with -c */    else if (s->do_bench)        tcc_print_stats(s, end_time - start_time);     tcc_delete(s);    if (!done)        goto redo;    if (ppfp)        tcc_fclose(ppfp);    return ret;}