uClibc-toolchain-wrapper.patch

   1 diff -urN uClibc-0.9.29.org/extra/gcc-uClibc/gcc-uClibc.c uClibc-0.9.29/extra/gcc-uClibc/gcc-uClibc.c
   2 --- uClibc-0.9.29.org/extra/gcc-uClibc/gcc-uClibc.c     1970-01-01 01:00:00.000000000 +0100
   3 +++ uClibc-0.9.29/extra/gcc-uClibc/gcc-uClibc.c 2007-06-03 22:10:49.372320596 +0200
   4 @@ -0,0 +1,672 @@
   5 +/* vi: set sw=4 ts=4: */
   6 +/*
   7 + * Copyright (C) 2000 Manuel Novoa III
   8 + * Copyright (C) 2002-2003 Erik Andersen
   9 + *
  10 + * This is a crude wrapper to use uClibc with gcc.
  11 + * It was originally written to work around ./configure for ext2fs-utils.
  12 + * It certainly can be improved, but it works for me in the normal cases.
  13 + *
  14 + * April 7, 2001
  15 + *
  16 + * A bug was fixed in building the gcc command line when dynamic linking.
  17 + * The functions dlopen, etc. now work.  At this time, you must make sure
  18 + * the correct libdl.so is included however.  It is safest to, for example,
  19 + * add /lib/libdl.so.1 if using ld-linux.so.1 rather than adding -ldl to the
  20 + * command line.
  21 + *
  22 + * Note: This is only a problem if devel and target archs are the same.  To
  23 + * avoid the problem, you can use a customized dynamic linker.
  24 + *
  25 + *
  26 + * April 18, 2001
  27 + *
  28 + * The wrapper now works with either installed and uninstalled uClibc versions.
  29 + * If you want to use the uninstalled header files and libs, either include
  30 + * the string "build" in the invocation name such as
  31 + *       'ln -s <ARCH>-uclibc-gcc <ARCH>-uclibc-gcc-build'
  32 + * or include it in the environment variable setting of UCLIBC_ENV.
  33 + * Note: This automatically enables the "rpath" behavior described below.
  34 + *
  35 + * The wrapper will now pass the location of the uClibc shared libs used to
  36 + * the linker with the "-rpath" option if the invocation name includes the
  37 + * string "rpath" or if the environment variable UCLIBC_ENV include it (as
  38 + * with "build" above).  This is primarily intended to be used on devel
  39 + * platforms of the same arch as the target.  A good place to use this feature
  40 + * would be in the uClibc/test directory.
  41 + *
  42 + * The wrapper now displays the command line passed to gcc when '-v' is used.
  43 + *
  44 + * May 31, 2001
  45 + *
  46 + * "rpath" and "build" behavior are now decoupled.  You can of course get
  47 + * the old "build" behavior by setting UCLIBC_ENV="rpath-build".  Order
  48 + * isn't important here, as only the substrings are searched for.
  49 + *
  50 + * Added environment variable check for UCLIBC_GCC_DLOPT to let user specify
  51 + * an alternative dynamic linker at runtime without using command line args.
  52 + * Since this wouldn't commonly be used, I made it easy on myself.  You have
  53 + * to match the option you would have passed to the gcc wrapper.  As an
  54 + * example,
  55 + *
  56 + *   export UCLIBC_GCC_DLOPT="-Wl,--dynamic-linker,/lib/ld-alt-linker.so.3"
  57 + *
  58 + * This is really only useful if target arch == devel arch and DEVEL_PREFIX
  59 + * isn't empty.  It involves a recompile, but you can at least test apps
  60 + * on your devel system if combined with the "rpath" behavor if by using
  61 + * LD_LIBRARY_PATH, etc.
  62 + *
  63 + * Also added check for "-Wl,--dynamic-linker" on the command line.  The
  64 + * use default dynamic linker or the envirnment-specified dynamic linker
  65 + * is disabled in that case.
  66 + *
  67 + * Added options --uclibc-use-build-dir and --uclibc-use-rpath so that those
  68 + * behaviors can be invoked from the command line.
  69 + *
  70 + */
  71 +
  72 +/*
  73 + *
  74 + * TODO:
  75 + * Check/modify gcc-specific environment variables?
  76 + */
  77 +
  78 +#include <stdio.h>
  79 +#include <stdlib.h>
  80 +#include <stdarg.h>
  81 +#include <string.h>
  82 +#include <unistd.h>
  83 +#include <errno.h>
  84 +#include <sys/stat.h>
  85 +#include <sys/wait.h>
  86 +
  87 +#include "gcc-uClibc.h"
  88 +
  89 +static char *our_usr_lib_path = "-L"UCLIBC_DEVEL_PREFIX"/lib";
  90 +
  91 +static char static_linking[] = "-static";
  92 +static char nostdinc[] = "-nostdinc";
  93 +static char nostartfiles[] = "-nostartfiles";
  94 +static char nodefaultlibs[] = "-nodefaultlibs";
  95 +static char nostdlib[] = "-nostdlib";
  96 +#ifdef __UCLIBC_CTOR_DTOR__
  97 +static char nostdinc_plus[] = "-nostdinc++";
  98 +#endif
  99 +
 100 +/* Include a local implementation of basename, since this
 101 + * uses the host system's C lib, and CYGWIN apparently
 102 + * doesn't provide an implementation of basename(). */
 103 +char *basename(const char *path)
 104 +{
 105 +       register const char *s;
 106 +       register const char *p;
 107 +       p = s = path;
 108 +       while (*s) {
 109 +               if (*s++ == '/') {
 110 +                       p = s;
 111 +               }
 112 +       }
 113 +       return (char *) p;
 114 +}
 115 +
 116 +char *dirname(char *path)
 117 +{
 118 +       static const char null_or_empty_or_noslash[] = ".";
 119 +       register char *s;
 120 +       register char *last;
 121 +       char *first;
 122 +
 123 +       last = s = path;
 124 +
 125 +       if (s != NULL) {
 126 +
 127 +LOOP:
 128 +               while (*s && (*s != '/')) ++s;
 129 +               first = s;
 130 +               while (*s == '/') ++s;
 131 +               if (*s) {
 132 +                       last = first;
 133 +                       goto LOOP;
 134 +               }
 135 +
 136 +               if (last == path) {
 137 +                       if (*last != '/') {
 138 +                               goto DOT;
 139 +                       }
 140 +                       if ((*++last == '/') && (last[1] == 0)) {
 141 +                               ++last;
 142 +                       }
 143 +               }
 144 +               *last = 0;
 145 +               return path;
 146 +       }
 147 +DOT:
 148 +       return (char *) null_or_empty_or_noslash;
 149 +}
 150 +
 151 +
 152 +extern void *xmalloc(size_t size)
 153 +{
 154 +       void *ptr = malloc(size);
 155 +
 156 +       if (!ptr) {
 157 +               fprintf(stderr, "memory exhausted");
 158 +               exit(EXIT_FAILURE);
 159 +       }
 160 +       return ptr;
 161 +}
 162 +
 163 +void xstrcat(char **string, ...)
 164 +{
 165 +       const char *c;
 166 +       va_list p;
 167 +       /* Don't bother to calculate how big exerything
 168 +        * will be, just be careful to not overflow...  */
 169 +       va_start(p, string);
 170 +       *string = xmalloc(BUFSIZ);
 171 +       **string = '\0';
 172 +       while(1) {
 173 +               if (!(c = va_arg(p, const char *)))
 174 +                       break;
 175 +               strcat(*string, c);
 176 +       }
 177 +       va_end(p);
 178 +}
 179 +
 180 +int main(int argc, char **argv)
 181 +{
 182 +       int use_build_dir = 0, linking = 1, use_static_linking = 0;
 183 +       int use_stdinc = 1, use_start = 1, use_stdlib = 1, use_pic = 0;
 184 +       int source_count = 0, use_rpath = 0, verbose = 0;
 185 +       int i, j, k, l, m, n;
 186 +       char ** gcc_argv;
 187 +       char ** gcc_argument;
 188 +       char ** libraries;
 189 +       char ** libpath;
 190 +       char *dlstr;
 191 +       char *incstr;
 192 +       char *devprefix;
 193 +   char *runprefix;
 194 +       char *builddir;
 195 +       char *libstr;
 196 +       char *build_dlstr = 0;
 197 +       char *cc;
 198 +       char *ep;
 199 +       char *rpath_link[2];
 200 +       char *rpath[2];
 201 +       char *uClibc_inc[2];
 202 +       char *our_lib_path[2];
 203 +       char *crt0_path[2];
 204 +       char *crtbegin_path[2];
 205 +       char *crtend_path[2];
 206 +       const char *application_name;
 207 +#ifdef __UCLIBC_CTOR_DTOR__
 208 +       char *crti_path[2];
 209 +       char *crtn_path[2];
 210 +       int len;
 211 +       int ctor_dtor = 1, cplusplus = 0, use_nostdinc_plus = 0;
 212 +       int findlibgcc = 1;
 213 +       char *cpp = NULL;
 214 +#endif
 215 +#ifdef __UCLIBC_PROFILING__
 216 +       int profile = 0;
 217 +       char *gcrt1_path[2];
 218 +#endif
 219 +
 220 +       cc     = getenv("UCLIBC_CC");
 221 +       if (cc==NULL) {
 222 +               cc = GCC_BIN;
 223 +#ifdef __UCLIBC_CTOR_DTOR__
 224 +               findlibgcc = 0;
 225 +#endif
 226 +       }
 227 +
 228 +       application_name = basename(argv[0]);
 229 +       if (application_name[0] == '-')
 230 +               application_name++;
 231 +
 232 +#ifdef __UCLIBC_CTOR_DTOR__
 233 +       /* We must use strstr since g++ might be named like a
 234 +        * cross compiler (i.e. arm-linux-g++).   We must also
 235 +        * search carefully, in case we are searching something
 236 +        * like /opt/c++/gcc-3.1/bin/arm-linux-g++ or some similar
 237 +        * perversion...  */
 238 +       len = strlen(application_name);
 239 +       if ((strcmp(application_name+len-3, "g++")==0) ||
 240 +                       (strcmp(application_name+len-3, "c++")==0)) {
 241 +               len = strlen(cc);
 242 +               if (strcmp(cc+len-3, "gcc")==0) {
 243 +                       cpp = strdup(cc);
 244 +                       cpp[len-1]='+';
 245 +                       cpp[len-2]='+';
 246 +               }
 247 +               cplusplus = 1;
 248 +               use_nostdinc_plus = 1;
 249 +       }
 250 +#endif
 251 +
 252 +       devprefix = getenv("UCLIBC_DEVEL_PREFIX");
 253 +       if (!devprefix) {
 254 +               devprefix = UCLIBC_DEVEL_PREFIX;
 255 +       }
 256 +
 257 +       runprefix = getenv("UCLIBC_RUNTIME_PREFIX");
 258 +       if (!runprefix) {
 259 +               runprefix = UCLIBC_RUNTIME_PREFIX;
 260 +       }
 261 +
 262 +       builddir = getenv("UCLIBC_BUILD_DIR");
 263 +       if (!builddir) {
 264 +               builddir = UCLIBC_BUILD_DIR;
 265 +       }
 266 +
 267 +       incstr = getenv("UCLIBC_GCC_INC");
 268 +       libstr = getenv("UCLIBC_GCC_LIB");
 269 +
 270 +       ep     = getenv("UCLIBC_ENV");
 271 +       if (!ep) {
 272 +               ep = "";
 273 +       }
 274 +
 275 +       if (strstr(ep,"build") != 0) {
 276 +               use_build_dir = 1;
 277 +       }
 278 +
 279 +       if (strstr(ep,"rpath") != 0) {
 280 +               use_rpath = 1;
 281 +       }
 282 +
 283 +
 284 +       xstrcat(&(rpath_link[0]), "-Wl,-rpath-link,", devprefix, "/lib:", runprefix, "/lib", NULL);
 285 +       xstrcat(&(rpath_link[1]), "-Wl,-rpath-link,", builddir, "/lib", NULL);
 286 +
 287 +       xstrcat(&(rpath[0]), "-Wl,-rpath,", devprefix, "/lib:", runprefix, "/lib", NULL);
 288 +       xstrcat(&(rpath[1]), "-Wl,-rpath,", builddir, "/lib", NULL);
 289 +
 290 +       xstrcat(&(uClibc_inc[0]), devprefix, "/include/", NULL);
 291 +       xstrcat(&(uClibc_inc[1]), builddir, "/include/", NULL);
 292 +
 293 +#ifdef __UCLIBC_CTOR_DTOR__
 294 +       xstrcat(&(crt0_path[0]), devprefix, "/lib/crt1.o", NULL);
 295 +       xstrcat(&(crt0_path[1]), builddir, "/lib/crt1.o", NULL);
 296 +       xstrcat(&(crti_path[0]), devprefix, "/lib/crti.o", NULL);
 297 +       xstrcat(&(crti_path[1]), builddir, "/lib/crti.o", NULL);
 298 +       xstrcat(&(crtn_path[0]), devprefix, "/lib/crtn.o", NULL);
 299 +       xstrcat(&(crtn_path[1]), builddir, "/lib/crtn.o", NULL);
 300 +#else
 301 +       xstrcat(&(crt0_path[0]), devprefix, "/lib/crt0.o", NULL);
 302 +       xstrcat(&(crt0_path[1]), builddir, "/lib/crt0.o", NULL);
 303 +#endif
 304 +#ifdef __UCLIBC_PROFILING__
 305 +       xstrcat(&(gcrt1_path[0]), devprefix, "/lib/gcrt1.o", NULL);
 306 +       xstrcat(&(gcrt1_path[1]), builddir, "/lib/gcrt1.o", NULL);
 307 +#endif
 308 +
 309 +       xstrcat(&(our_lib_path[0]), "-L", devprefix, "/lib", NULL);
 310 +       xstrcat(&(our_lib_path[1]), "-L", builddir, "/lib", NULL);
 311 +
 312 +#ifdef __UCLIBC_HAS_SHARED__
 313 +       build_dlstr = "-Wl,--dynamic-linker," BUILD_DYNAMIC_LINKER;
 314 +       dlstr = getenv("UCLIBC_GCC_DLOPT");
 315 +       if (!dlstr) {
 316 +               dlstr = "-Wl,--dynamic-linker," DYNAMIC_LINKER;
 317 +       }
 318 +#endif
 319 +
 320 +       m = 0;
 321 +       libraries = __builtin_alloca(sizeof(char*) * (argc));
 322 +       libraries[m] = '\0';
 323 +
 324 +       n = 0;
 325 +       libpath = __builtin_alloca(sizeof(char*) * (argc));
 326 +       libpath[n] = '\0';
 327 +
 328 +       for ( i = 1 ; i < argc ; i++ ) {
 329 +               if (argv[i][0] == '-') { /* option */
 330 +                       switch (argv[i][1]) {
 331 +                               case 'c':               /* compile or assemble */
 332 +                               case 'S':               /* generate assembler code */
 333 +                               case 'E':               /* preprocess only */
 334 +                               case 'M':           /* generate dependencies */
 335 +                                       linking = 0;
 336 +                                       break;
 337 +                               case 'L':               /* library */
 338 +                                       libpath[n++] = argv[i];
 339 +                                       libpath[n] = '\0';
 340 +                                       if (argv[i][2] == 0) {
 341 +                                               argv[i] = '\0';
 342 +                                               libpath[n++] = argv[++i];
 343 +                                               libpath[n] = '\0';
 344 +                                       }
 345 +                                       argv[i] = '\0';
 346 +                                       break;
 347 +                               case 'l':               /* library */
 348 +                                       libraries[m++] = argv[i];
 349 +                                       libraries[m] = '\0';
 350 +                                       argv[i] = '\0';
 351 +                                       break;
 352 +                               case 'v':               /* verbose */
 353 +                                       if (argv[i][2] == 0) verbose = 1;
 354 +                                       printf("Invoked as %s\n", argv[0]);
 355 +                                       break;
 356 +                               case 'n':
 357 +                                       if (strcmp(nostdinc,argv[i]) == 0) {
 358 +                                               use_stdinc = 0;
 359 +                                       } else if (strcmp(nostartfiles,argv[i]) == 0) {
 360 +#ifdef __UCLIBC_CTOR_DTOR__
 361 +                                               ctor_dtor = 0;
 362 +#endif
 363 +                                               use_start = 0;
 364 +                                       } else if (strcmp(nodefaultlibs,argv[i]) == 0) {
 365 +                                               use_stdlib = 0;
 366 +                                               argv[i] = '\0';
 367 +                                       } else if (strcmp(nostdlib,argv[i]) == 0) {
 368 +#ifdef __UCLIBC_CTOR_DTOR__
 369 +                                               ctor_dtor = 0;
 370 +#endif
 371 +                                               use_start = 0;
 372 +                                               use_stdlib = 0;
 373 +                                       }
 374 +#ifdef __UCLIBC_CTOR_DTOR__
 375 +                                       else if (strcmp(nostdinc_plus,argv[i]) == 0) {
 376 +                                               if (cplusplus==1) {
 377 +                                                       use_nostdinc_plus = 0;
 378 +                                               }
 379 +                                       }
 380 +#endif
 381 +                                       break;
 382 +                               case 's':
 383 +                                       if (strstr(argv[i],static_linking) != NULL) {
 384 +                                               use_static_linking = 1;
 385 +                                       }
 386 +                                       if (strcmp("-shared",argv[i]) == 0) {
 387 +                                               use_start = 0;
 388 +                                               use_pic = 1;
 389 +                                       }
 390 +                                       break;
 391 +                               case 'W':               /* -static could be passed directly to ld */
 392 +                                       if (strncmp("-Wl,",argv[i],4) == 0) {
 393 +                                               if (strstr(argv[i],static_linking) != 0) {
 394 +                                                       use_static_linking = 1;
 395 +                                               }
 396 +                                               if (strstr(argv[i],"--dynamic-linker") != 0) {
 397 +                                                       dlstr = 0;
 398 +                                               }
 399 +                                               if ((strstr(argv[i],"-z,combreloc") != 0) ||
 400 +                                                               (strstr(argv[i],"-z,relro") != 0)) {
 401 +                                                       argv[i] = '\0';
 402 +                                               }
 403 +                                       }
 404 +                                       break;
 405 +#ifdef __UCLIBC_PROFILING__
 406 +                               case 'p':
 407 +                                       if (strcmp("-pg",argv[i]) == 0) {
 408 +                                               profile = 1;
 409 +                                       }
 410 +                                       break;
 411 +#endif
 412 +                               case 'f':
 413 +                                       /* Check if we are doing PIC */
 414 +                                       if (strcmp("-fPIC",argv[i]) == 0) {
 415 +                                               use_pic = 1;
 416 +                                       } else if (strcmp("-fpic",argv[i]) == 0) {
 417 +                                               use_pic = 1;
 418 +                                       }
 419 +#ifdef __UCLIBC_PROFILING__
 420 +                                       else if (strcmp("-fprofile-arcs",argv[i]) == 0) {
 421 +                                               profile = 1;
 422 +                                       }
 423 +#endif
 424 +                                       break;
 425 +
 426 +                               case '-':
 427 +                                       if (strstr(argv[i]+1,static_linking) != NULL) {
 428 +                                               use_static_linking = 1;
 429 +                                               argv[i]='\0';
 430 +                                       } else if (strcmp("--uclibc-use-build-dir",argv[i]) == 0) {
 431 +                                               use_build_dir = 1;
 432 +                                               argv[i]='\0';
 433 +                                       } else if (strcmp("--uclibc-use-rpath",argv[i]) == 0) {
 434 +                                               use_rpath = 1;
 435 +                                               argv[i]='\0';
 436 +                                       } else if (strcmp ("--uclibc-cc", argv[i]) == 0 && argv[i + 1]) {
 437 +                                               cc = argv[i + 1];
 438 +                                               argv[i] = 0;
 439 +                                               argv[i + 1] = 0;
 440 +                                       } else if (strncmp ("--uclibc-cc=", argv[i], 12) == 0) {
 441 +                                               cc = argv[i] + 12;
 442 +                                               argv[i] = 0;
 443 +                                       }
 444 +#ifdef __UCLIBC_CTOR_DTOR__
 445 +                                       else if (strcmp("--uclibc-no-ctors",argv[i]) == 0) {
 446 +                                               ctor_dtor = 0;
 447 +                                               argv[i]='\0';
 448 +                                       }
 449 +#endif
 450 +                                       break;
 451 +                       }
 452 +               } else {                                /* assume it is an existing source file */
 453 +                       ++source_count;
 454 +               }
 455 +       }
 456 +
 457 +       gcc_argv = __builtin_alloca(sizeof(char*) * (argc + 64));
 458 +       gcc_argument = __builtin_alloca(sizeof(char*) * (argc + 20));
 459 +
 460 +       i = 0; k = 0;
 461 +#ifdef __UCLIBC_CTOR_DTOR__
 462 +       if (ctor_dtor) {
 463 +               struct stat statbuf;
 464 +               if (findlibgcc==1 || stat(LIBGCC_DIR, &statbuf)!=0 ||
 465 +                               !S_ISDIR(statbuf.st_mode))
 466 +               {
 467 +                       /* Bummer, gcc is hiding from us. This is going
 468 +                        * to really slow things down... bummer.  */
 469 +                       int status, gcc_pipe[2];
 470 +                       pid_t pid, wpid;
 471 +
 472 +                       pipe(gcc_pipe);
 473 +                       if (!(pid = fork())) {
 474 +                               char *argv[4];
 475 +                               close(gcc_pipe[0]);
 476 +                               close(1);
 477 +                               close(2);
 478 +                               dup2(gcc_pipe[1], 1);
 479 +                               dup2(gcc_pipe[1], 2);
 480 +                               argv[0] = cc;
 481 +                               argv[1] = "-print-libgcc-file-name";
 482 +                               argv[2] = NULL;
 483 +                               execvp(cc, argv);
 484 +                               close(gcc_pipe[1]);
 485 +                               _exit(EXIT_FAILURE);
 486 +                       }
 487 +                       wpid=0;
 488 +                       while (wpid != pid) {
 489 +                               wpid = wait(&status);
 490 +                       }
 491 +                       close(gcc_pipe[1]);
 492 +                       if (WIFEXITED(status) && WEXITSTATUS(status)) {
 493 +crash_n_burn:
 494 +                               fprintf(stderr, "Unable to locale crtbegin.o provided by gcc");
 495 +                               exit(EXIT_FAILURE);
 496 +                       }
 497 +                       if (WIFSIGNALED(status)) {
 498 +                               fprintf(stderr, "%s exited because of uncaught signal %d", cc, WTERMSIG(status));
 499 +                               exit(EXIT_FAILURE);
 500 +                       }
 501 +
 502 +                       {
 503 +                               char buf[1024], *dir;
 504 +                               status = read(gcc_pipe[0], buf, sizeof(buf));
 505 +                               close(gcc_pipe[0]);
 506 +                               if (status < 0) {
 507 +                                       goto crash_n_burn;
 508 +                               }
 509 +                               buf[(status == sizeof(buf)) ? status-1 : status] = 0;
 510 +                               dir = dirname(buf);
 511 +                               xstrcat(&(crtbegin_path[0]), dir, "/crtbegin.o", NULL);
 512 +                               xstrcat(&(crtbegin_path[1]), dir, "/crtbeginS.o", NULL);
 513 +                               xstrcat(&(crtend_path[0]), dir, "/crtend.o", NULL);
 514 +                               xstrcat(&(crtend_path[1]), dir, "/crtendS.o", NULL);
 515 +                       }
 516 +
 517 +               } else {
 518 +                       xstrcat(&(crtbegin_path[0]), LIBGCC_DIR, "crtbegin.o", NULL);
 519 +                       xstrcat(&(crtbegin_path[1]), LIBGCC_DIR, "crtbeginS.o", NULL);
 520 +                       xstrcat(&(crtend_path[0]), LIBGCC_DIR, "crtend.o", NULL);
 521 +                       xstrcat(&(crtend_path[1]), LIBGCC_DIR, "crtendS.o", NULL);
 522 +               }
 523 +       }
 524 +
 525 +       if (cplusplus && cpp)
 526 +               gcc_argv[i++] = cpp;
 527 +       else
 528 +#endif
 529 +               gcc_argv[i++] = cc;
 530 +
 531 +       for ( j = 1 ; j < argc ; j++ ) {
 532 +               if (argv[j]=='\0') {
 533 +                       continue;
 534 +               } else {
 535 +                       gcc_argument[k++] = argv[j];
 536 +                       gcc_argument[k] = '\0';
 537 +               }
 538 +       }
 539 +
 540 +       if (linking && source_count) {
 541 +               gcc_argv[i++] = "-Wl,--hash-style=gnu";
 542 +#if defined __HAVE_ELF__ && ! defined __UCLIBC_HAS_MMU__
 543 +               gcc_argv[i++] = "-Wl,-elf2flt";
 544 +#endif
 545 +               gcc_argv[i++] = nostdlib;
 546 +               if (use_static_linking) {
 547 +                       gcc_argv[i++] = static_linking;
 548 +               }
 549 +               if (!use_static_linking) {
 550 +                       if (dlstr && use_build_dir) {
 551 +                               gcc_argv[i++] = build_dlstr;
 552 +                       } else if (dlstr) {
 553 +                               gcc_argv[i++] = dlstr;
 554 +                       }
 555 +                       if (use_rpath) {
 556 +                               gcc_argv[i++] = rpath[use_build_dir];
 557 +                       }
 558 +               }
 559 +               for ( l = 0 ; l < n ; l++ ) {
 560 +                       if (libpath[l]) gcc_argv[i++] = libpath[l];
 561 +               }
 562 +               gcc_argv[i++] = rpath_link[use_build_dir]; /* just to be safe */
 563 +               if( libstr )
 564 +                       gcc_argv[i++] = libstr;
 565 +               gcc_argv[i++] = our_lib_path[use_build_dir];
 566 +               if (!use_build_dir) {
 567 +                       gcc_argv[i++] = our_usr_lib_path;
 568 +               }
 569 +       }
 570 +       if (use_stdinc && source_count) {
 571 +               gcc_argv[i++] = nostdinc;
 572 +#ifdef __UCLIBC_CTOR_DTOR__
 573 +               if (cplusplus) {
 574 +                       char *cppinc;
 575 +                       if (use_nostdinc_plus) {
 576 +                               gcc_argv[i++] = nostdinc_plus;
 577 +                       }
 578 +                       xstrcat(&cppinc, uClibc_inc[use_build_dir], "g++/", NULL);
 579 +                       gcc_argv[i++] = "-isystem";
 580 +                       gcc_argv[i++] = cppinc;
 581 +                       xstrcat(&cppinc, uClibc_inc[use_build_dir], "g++-v3/", NULL);
 582 +                       gcc_argv[i++] = "-isystem";
 583 +                       gcc_argv[i++] = cppinc;
 584 +               }
 585 +#endif
 586 +               gcc_argv[i++] = "-isystem";
 587 +               gcc_argv[i++] = uClibc_inc[use_build_dir];
 588 +               gcc_argv[i++] = "-iwithprefix";
 589 +               gcc_argv[i++] = "include";
 590 +               if( incstr )
 591 +                       gcc_argv[i++] = incstr;
 592 +       }
 593 +
 594 +       if (linking && source_count) {
 595 +
 596 +#ifdef __UCLIBC_PROFILING__
 597 +               if (profile) {
 598 +                       gcc_argv[i++] = gcrt1_path[use_build_dir];
 599 +               }
 600 +#endif
 601 +#ifdef __UCLIBC_CTOR_DTOR__
 602 +               if (ctor_dtor) {
 603 +                       gcc_argv[i++] = crti_path[use_build_dir];
 604 +                       if (use_pic) {
 605 +                               gcc_argv[i++] = crtbegin_path[1];
 606 +                       } else {
 607 +                               gcc_argv[i++] = crtbegin_path[0];
 608 +                       }
 609 +               }
 610 +#endif
 611 +               if (use_start) {
 612 +#ifdef __UCLIBC_PROFILING__
 613 +                       if (!profile)
 614 +#endif
 615 +                       {
 616 +                               gcc_argv[i++] = crt0_path[use_build_dir];
 617 +                       }
 618 +               }
 619 +               for ( l = 0 ; l < k ; l++ ) {
 620 +                       if (gcc_argument[l]) gcc_argv[i++] = gcc_argument[l];
 621 +               }
 622 +               if (use_stdlib) {
 623 +                       //gcc_argv[i++] = "-Wl,--start-group";
 624 +                       gcc_argv[i++] = "-lgcc";
 625 +               }
 626 +               for ( l = 0 ; l < m ; l++ ) {
 627 +                       if (libraries[l]) gcc_argv[i++] = libraries[l];
 628 +               }
 629 +               if (use_stdlib) {
 630 +#ifdef __UCLIBC_CTOR_DTOR__
 631 +                       if (cplusplus) {
 632 +                               gcc_argv[ i++ ] = "-lstdc++";
 633 +                               gcc_argv[ i++ ] = "-lm";
 634 +                       }
 635 +#endif
 636 +                       gcc_argv[i++] = "-lc";
 637 +                       gcc_argv[i++] = "-lgcc";
 638 +                       //gcc_argv[i++] = "-Wl,--end-group";
 639 +               }
 640 +#ifdef __UCLIBC_CTOR_DTOR__
 641 +               if (ctor_dtor) {
 642 +                       if (use_pic) {
 643 +                               gcc_argv[i++] = crtend_path[1];
 644 +                       } else {
 645 +                               gcc_argv[i++] = crtend_path[0];
 646 +                       }
 647 +
 648 +                       gcc_argv[i++] = crtn_path[use_build_dir];
 649 +               }
 650 +#endif
 651 +       } else {
 652 +               for ( l = 0 ; l < k ; l++ ) {
 653 +                       if (gcc_argument[l]) gcc_argv[i++] = gcc_argument[l];
 654 +               }
 655 +       }
 656 +       gcc_argv[i++] = NULL;
 657 +
 658 +       if (verbose) {
 659 +               for ( j = 0 ; gcc_argv[j] ; j++ ) {
 660 +                       printf("arg[%2i] = %s\n", j, gcc_argv[j]);
 661 +               }
 662 +               fflush(stdout);
 663 +       }
 664 +       //no need to free memory from xstrcat because we never return...
 665 +#ifdef __UCLIBC_CTOR_DTOR__
 666 +       if (cplusplus && cpp) {
 667 +               execvp(cpp, gcc_argv);
 668 +               fprintf(stderr, "%s: %s\n", cpp, strerror(errno));
 669 +       } else
 670 +#endif
 671 +       {
 672 +               execvp(cc, gcc_argv);
 673 +               fprintf(stderr, "%s: %s\n", cc, strerror(errno));
 674 +       }
 675 +       exit(EXIT_FAILURE);
 676 +}
 677 diff -urN uClibc-0.9.29.org/extra/gcc-uClibc/Makefile uClibc-0.9.29/extra/gcc-uClibc/Makefile
 678 --- uClibc-0.9.29.org/extra/gcc-uClibc/Makefile 1970-01-01 01:00:00.000000000 +0100
 679 +++ uClibc-0.9.29/extra/gcc-uClibc/Makefile     2007-06-03 22:10:14.593807939 +0200
 680 @@ -0,0 +1,93 @@
 681 +# Makefile for building a fake gcc/binutils toolchain
 682 +# that simply spoofs the location of the C library
 683 +#
 684 +# Copyright (C) 2000-2002 Erik Andersen <andersen@uclibc.org>
 685 +#
 686 +
 687 +TOPDIR = ../../
 688 +include $(TOPDIR)Rules.mak
 689 +include $(TOPDIR)/.config
 690 +
 691 +UCLIBC_DIR = $(shell (cd ../.. ; /bin/pwd))
 692 +GCC_BIN = $(shell which $(CC))
 693 +LD_BIN = $(shell which $(LD))
 694 +GCCINCDIR:= ${shell $(CC) -print-search-dirs | sed -ne "s/install: \(.*\)/\1include/gp"}
 695 +
 696 +all: gcc-uClibc ld-uClibc
 697 +
 698 +gcc-uClibc.h: Makefile $(TOPDIR)/.config
 699 +       @echo "/* this file was autogenerated by make */" > gcc-uClibc.h
 700 +       @echo "#define UCLIBC_TARGET_PREFIX " \"$(TARGET_PREFIX)\" >> gcc-uClibc.h
 701 +       @echo "#define UCLIBC_DEVEL_PREFIX " \"$(DEVEL_PREFIX)\" >> gcc-uClibc.h
 702 +       @echo "#define UCLIBC_RUNTIME_PREFIX " \"$(RUNTIME_PREFIX)\" >> gcc-uClibc.h
 703 +       @echo "#define UCLIBC_BUILD_DIR " \"$(UCLIBC_DIR)\" >> gcc-uClibc.h
 704 +       @echo "#define GCC_BIN " \"$(GCC_BIN)\" >> gcc-uClibc.h
 705 +       @echo "#define LIBGCC_DIR " \"$(LIBGCC_DIR)\" >> gcc-uClibc.h
 706 +       @echo "#define TARGET_ARCH " \"$(TARGET_ARCH)\" >> gcc-uClibc.h
 707 +       @echo "#define DYNAMIC_LINKER " \"$(RUNTIME_PREFIX)/lib/$(UCLIBC_LDSO)\" >> gcc-uClibc.h
 708 +       @echo "#define BUILD_DYNAMIC_LINKER " \"$(UCLIBC_DIR)/lib/$(UCLIBC_LDSO)\" >> gcc-uClibc.h
 709 +ifeq ($(strip $(HAVE_SHARED)),y)
 710 +       @echo "#define __UCLIBC_HAS_SHARED__ 1" >> gcc-uClibc.h
 711 +else
 712 +       @echo "#undef __UCLIBC_HAS_SHARED__" >> gcc-uClibc.h
 713 +endif
 714 +ifeq ($(strip $(UCLIBC_HAS_MMU)),y)
 715 +       @echo "#define __UCLIBC_HAS_MMU__ 1" >> gcc-uClibc.h
 716 +else
 717 +       @echo "#undef __UCLIBC_HAS_MMU__" >> gcc-uClibc.h
 718 +endif
 719 +ifeq ($(strip $(HAS_ELF)),y)
 720 +       @echo "#define __HAS_ELF__ 1" >> gcc-uClibc.h
 721 +else
 722 +       @echo "#undef __HAS_ELF__" >> gcc-uClibc.h
 723 +endif
 724 +ifeq ($(strip $(UCLIBC_CTOR_DTOR)),y)
 725 +       @echo "#define __UCLIBC_CTOR_DTOR__ 1" >> gcc-uClibc.h
 726 +ifeq ($(strip $(UCLIBC_PROFILING)),y)
 727 +       @echo "#define __UCLIBC_PROFILING__ 1" >> gcc-uClibc.h
 728 +else
 729 +       @echo "#undef __UCLIBC_PROFILING__" >> gcc-uClibc.h
 730 +endif
 731 +else
 732 +       @echo "#undef __UCLIBC_CTOR_DTOR__" >> gcc-uClibc.h
 733 +endif
 734 +
 735 +gcc-uClibc: gcc-uClibc.h gcc-uClibc.c
 736 +       $(HOSTCC) $(HOSTCFLAGS) -s gcc-uClibc.c -o $(TARGET_ARCH)-uclibc-gcc
 737 +       touch gcc-uClibc
 738 +
 739 +ld-uClibc:
 740 +       @echo "#!/bin/sh" > $(TARGET_ARCH)-uclibc-ld
 741 +       @echo "# This file was autogenerated by make" >> $(TARGET_ARCH)-uclibc-ld
 742 +       @echo "exec $(LD_BIN) \$$@ -L$(DEVEL_PREFIX)/lib" >> $(TARGET_ARCH)-uclibc-ld
 743 +       chmod a+x $(TARGET_ARCH)-uclibc-ld
 744 +       touch ld-uClibc
 745 +
 746 +install: all
 747 +       install -d $(PREFIX)$(DEVEL_PREFIX)/bin;
 748 +       install -d $(PREFIX)$(RUNTIME_PREFIX)/bin;
 749 +       install -m 755 $(TARGET_ARCH)-uclibc-gcc $(PREFIX)$(RUNTIME_PREFIX)/bin/
 750 +       install -m 755 $(TARGET_ARCH)-uclibc-ld $(PREFIX)$(RUNTIME_PREFIX)/bin/
 751 +       ln -fs $(TARGET_ARCH)-uclibc-gcc $(PREFIX)$(RUNTIME_PREFIX)/bin/$(TARGET_ARCH)-uclibc-cc
 752 +       ln -fs $(RUNTIME_PREFIX)/bin/$(TARGET_ARCH)-uclibc-gcc $(PREFIX)$(DEVEL_PREFIX)/bin/gcc
 753 +       ln -fs $(RUNTIME_PREFIX)/bin/$(TARGET_ARCH)-uclibc-gcc $(PREFIX)$(DEVEL_PREFIX)/bin/cc
 754 +       ln -fs $(RUNTIME_PREFIX)/bin/$(TARGET_ARCH)-uclibc-ld  $(PREFIX)$(DEVEL_PREFIX)/bin/ld
 755 +ifeq ($(strip $(UCLIBC_CTOR_DTOR)),y)
 756 +       ln -fs $(TARGET_ARCH)-uclibc-gcc $(PREFIX)$(RUNTIME_PREFIX)/bin/$(TARGET_ARCH)-uclibc-g++
 757 +       ln -fs $(TARGET_ARCH)-uclibc-gcc $(PREFIX)$(RUNTIME_PREFIX)/bin/$(TARGET_ARCH)-uclibc-c++
 758 +       ln -fs $(RUNTIME_PREFIX)/bin/$(TARGET_ARCH)-uclibc-gcc $(PREFIX)$(DEVEL_PREFIX)/bin/c++
 759 +       ln -fs $(RUNTIME_PREFIX)/bin/$(TARGET_ARCH)-uclibc-gcc $(PREFIX)$(DEVEL_PREFIX)/bin/g++
 760 +endif
 761 +       for app in addr2line ar as cpp nm objcopy \
 762 +           objdump ranlib size strings strip; do \
 763 +         APPNAME=`which $(CROSS)$${app}`; \
 764 +         if [ -x "$$APPNAME" ] ; then \
 765 +         ln -fs "$$APPNAME" $(PREFIX)$(DEVEL_PREFIX)/bin/$${app}; \
 766 +         ln -fs "$$APPNAME" $(PREFIX)$(RUNTIME_PREFIX)/bin/$(TARGET_ARCH)-uclibc-$${app}; \
 767 +         fi; \
 768 +       done
 769 +
 770 +clean:
 771 +       rm -f gcc-uClibc.h *-uclibc-gcc *-uclibc-ld core
 772 +
 773 +
 774 --- uClibc-0.9.32/Makefile.in.orig      2011-06-08 21:35:20.000000000 +0200
 775 +++ uClibc-0.9.32/Makefile.in   2011-06-12 09:20:09.634046086 +0200
 776 @@ -23,7 +23,7 @@
 777
 778  ifeq ($(HAVE_DOT_CONFIG),y)
 779
 780 -all: pregen libs
 781 +all: pregen libs toolchain
 782  libs: pregen
 783
 784  # In this section, we need .config
 785 @@ -192,7 +192,7 @@
 786         HOSTCC="$(HOSTCC)" \
 787         install_dev
 788
 789 -install: install_runtime install_dev
 790 +install: install_runtime install_dev install_toolchain
 791
 792
 793  RUNTIME_PREFIX_LIB_FROM_DEVEL_PREFIX_LIB=$(shell $(top_srcdir)extra/scripts/relative_path.sh $(DEVEL_PREFIX)$(MULTILIB_DIR) $(RUNTIME_PREFIX)$(MULTILIB_DIR))
 794 @@ -405,6 +405,12 @@
 795
 796  endif # ifeq ($(HAVE_DOT_CONFIG),y)
 797
 798 +toolchain:
 799 +       $(MAKE) CROSS="$(CROSS)" CC="$(CC)" -C extra/gcc-uClibc
 800 +
 801 +install_toolchain: toolchain
 802 +       $(MAKE) CROSS="$(CROSS)" CC="$(CC)" -C extra/gcc-uClibc install
 803 +
 804  hostutils: | pregen
 805         $(Q)$(MAKE) CROSS="$(CROSS)" CC="$(CC)" HOSTCC="$(HOSTCC)" DOTHOST=.host -C utils $@
 806