Import tcc_0.9.27.orig.tar.bz2

[dgit import orig tcc_0.9.27.orig.tar.bz2]

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diff --git a/tcc.c b/tcc.c
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+/*
+ *  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 "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 [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 -vv      show version, 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"
+    "Linker options:\n"
+    "  -Ldir       add library path 'dir'\n"
+    "  -llib       link with dynamic or static library 'lib'\n"
+    "  -r          generate (relocatable) object file\n"
+    "  -shared     generate a shared library/dll\n"
+    "  -rdynamic   export all global symbols to dynamic linker\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 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"
+    "  -x[c|a|n]   specify type of the next infile\n"
+    "  -nostdinc   do not use standard system include paths\n"
+    "  -nostdlib   do not link with standard crt and libraries\n"
+    "  -Bdir       set tcc's private include/library dir\n"
+    "  -MD         generate dependency file for make\n"
+    "  -MF file    specify dependency file name\n"
+    "  -m32/64     defer to i386/x86_64 cross compiler\n"
+    "Tools:\n"
+    "  create library  : tcc -ar [rcsv] lib.a files\n"
+#ifdef TCC_TARGET_PE
+    "  create def file : tcc -impdef lib.dll [-v] [-o lib.def]\n"
+#endif
+    ;
+
+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"
+    "  -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"
+    "  -dt                           with -run/-E: auto-define 'test_...' macros\n"
+    "Ignored options:\n"
+    "  --param  -pedantic  -pipe  -s  -std  -traditional\n"
+    "-W... warnings:\n"
+    "  all                           turn on some (*) warnings\n"
+    "  error                         stop after first warning\n"
+    "  unsupported                   warn about ignored options, pragmas, etc.\n"
+    "  write-strings                 strings are const\n"
+    "  implicit-function-declaration warn for missing prototype (*)\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"
+    "-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 link with standard crt/libs\n"
+    "  -[no-]whole-archive           load lib(s) fully/only as needed\n"
+    "  -export-all-symbols           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"
+    "  -Bsymbolic                    set DT_SYMBOLIC elf tag\n"
+    "  -oformat=[elf32/64-* binary]  set executable output format\n"
+    "  -init= -fini= -as-needed -O   (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_TARGET_I386
+        "i386"
+#elif defined TCC_TARGET_X86_64
+        "x86_64"
+#elif defined TCC_TARGET_C67
+        "C67"
+#elif defined TCC_TARGET_ARM
+        "ARM"
+#elif defined TCC_TARGET_ARM64
+        "AArch64"
+#endif
+#ifdef TCC_ARM_HARDFLOAT
+        " Hard Float"
+#endif
+#ifdef TCC_TARGET_PE
+        " Windows"
+#elif defined(TCC_TARGET_MACHO)
+        " Darwin"
+#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+        " FreeBSD"
+#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/"TCC_LIBTCC1"\n", s->tcc_lib_path);
+#ifndef TCC_TARGET_PE
+    print_dirs("crt", s->crt_paths, s->nb_crt_paths);
+    printf("elfinterp:\n  %s\n",  DEFAULT_ELFINTERP(s));
+#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);
+    snprintf(buf, sizeof(buf), "%s", 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->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 argc0, char **argv0)
+{
+    TCCState *s;
+    int ret, opt, n = 0, t = 0;
+    unsigned start_time = 0;
+    const char *first_file;
+    int argc; char **argv;
+    FILE *ppfp = stdout;
+
+redo:
+    argc = argc0, argv = argv0;
+    s = tcc_new();
+    opt = tcc_parse_args(s, &argc, &argv, 1);
+
+    if ((n | t) == 0) {
+        if (opt == OPT_HELP)
+            return printf(help), 1;
+        if (opt == OPT_HELP2)
+            return printf(help2), 1;
+        if (opt == OPT_M32 || opt == OPT_M64)
+            tcc_tool_cross(s, argv, opt); /* never returns */
+        if (s->verbose)
+            printf(version);
+        if (opt == OPT_AR)
+            return tcc_tool_ar(s, argc, argv);
+#ifdef TCC_TARGET_PE
+        if (opt == OPT_IMPDEF)
+            return tcc_tool_impdef(s, argc, argv);
+#endif
+        if (opt == OPT_V)
+            return 0;
+        if (opt == OPT_PRINT_DIRS) {
+            /* initialize search dirs */
+            set_environment(s);
+            tcc_set_output_type(s, TCC_OUTPUT_MEMORY);
+            print_search_dirs(s);
+            return 0;
+        }
+
+        n = s->nb_files;
+        if (n == 0)
+            tcc_error("no input files\n");
+
+        if (s->output_type == TCC_OUTPUT_PREPROCESS) {
+            if (s->outfile) {
+                ppfp = fopen(s->outfile, "w");
+                if (!ppfp)
+                    tcc_error("could not write '%s'", s->outfile);
+            }
+        } else if (s->output_type == TCC_OUTPUT_OBJ && !s->option_r) {
+            if (s->nb_libraries)
+                tcc_error("cannot specify libraries with -c");
+            if (n > 1 && s->outfile)
+                tcc_error("cannot specify output file with -c many files");
+        } else {
+            if (s->option_pthread)
+                tcc_set_options(s, "-lpthread");
+        }
+
+        if (s->do_bench)
+            start_time = getclock_ms();
+    }
+
+    set_environment(s);
+    if (s->output_type == 0)
+        s->output_type = TCC_OUTPUT_EXE;
+    tcc_set_output_type(s, s->output_type);
+    s->ppfp = ppfp;
+
+    if ((s->output_type == TCC_OUTPUT_MEMORY
+      || s->output_type == TCC_OUTPUT_PREPROCESS) && (s->dflag & 16))
+        s->dflag |= t ? 32 : 0, s->run_test = ++t, n = s->nb_files;
+
+    /* compile or add each files or library */
+    for (first_file = NULL, ret = 0;;) {
+        struct filespec *f = s->files[s->nb_files - n];
+        s->filetype = f->type;
+        s->alacarte_link = f->alacarte;
+        if (f->type == AFF_TYPE_LIB) {
+            if (tcc_add_library_err(s, f->name) < 0)
+                ret = 1;
+        } else {
+            if (1 == s->verbose)
+                printf("-> %s\n", f->name);
+            if (!first_file)
+                first_file = f->name;
+            if (tcc_add_file(s, f->name) < 0)
+                ret = 1;
+        }
+        s->filetype = 0;
+        s->alacarte_link = 1;
+        if (--n == 0 || ret
+            || (s->output_type == TCC_OUTPUT_OBJ && !s->option_r))
+            break;
+    }
+
+    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 (tcc_output_file(s, s->outfile))
+                ret = 1;
+            else if (s->gen_deps)
+                gen_makedeps(s, s->outfile, s->deps_outfile);
+        }
+    }
+
+    if (s->do_bench && (n | t | ret) == 0)
+        tcc_print_stats(s, getclock_ms() - start_time);
+    tcc_delete(s);
+    if (ret == 0 && n)
+        goto redo; /* compile more files with -c */
+    if (t)
+        goto redo; /* run more tests with -dt -run */
+    if (ppfp && ppfp != stdout)
+        fclose(ppfp);
+    return ret;
+}