diff options
Diffstat (limited to 'debian/gcc-uClibc/gcc-uClibc.c')
| -rw-r--r-- | debian/gcc-uClibc/gcc-uClibc.c | 668 |
1 files changed, 0 insertions, 668 deletions
diff --git a/debian/gcc-uClibc/gcc-uClibc.c b/debian/gcc-uClibc/gcc-uClibc.c deleted file mode 100644 index e6566a143..000000000 --- a/debian/gcc-uClibc/gcc-uClibc.c +++ /dev/null @@ -1,668 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * Copyright (C) 2000 Manuel Novoa III - * Copyright (C) 2002-2003 Erik Andersen - * - * This is a crude wrapper to use uClibc with gcc. - * It was originally written to work around ./configure for ext2fs-utils. - * It certainly can be improved, but it works for me in the normal cases. - * - * April 7, 2001 - * - * A bug was fixed in building the gcc command line when dynamic linking. - * The functions dlopen, etc. now work. At this time, you must make sure - * the correct libdl.so is included however. It is safest to, for example, - * add /lib/libdl.so.1 if using ld-linux.so.1 rather than adding -ldl to the - * command line. - * - * Note: This is only a problem if devel and target archs are the same. To - * avoid the problem, you can use a customized dynamic linker. - * - * - * April 18, 2001 - * - * The wrapper now works with either installed and uninstalled uClibc versions. - * If you want to use the uninstalled header files and libs, either include - * the string "build" in the invocation name such as - * 'ln -s <ARCH>-uclibc-gcc <ARCH>-uclibc-gcc-build' - * or include it in the environment variable setting of UCLIBC_ENV. - * Note: This automatically enables the "rpath" behavior described below. - * - * The wrapper will now pass the location of the uClibc shared libs used to - * the linker with the "-rpath" option if the invocation name includes the - * string "rpath" or if the environment variable UCLIBC_ENV include it (as - * with "build" above). This is primarily intended to be used on devel - * platforms of the same arch as the target. A good place to use this feature - * would be in the uClibc/test directory. - * - * The wrapper now displays the command line passed to gcc when '-v' is used. - * - * May 31, 2001 - * - * "rpath" and "build" behavior are now decoupled. You can of course get - * the old "build" behavior by setting UCLIBC_ENV="rpath-build". Order - * isn't important here, as only the substrings are searched for. - * - * Added environment variable check for UCLIBC_GCC_DLOPT to let user specify - * an alternative dynamic linker at runtime without using command line args. - * Since this wouldn't commonly be used, I made it easy on myself. You have - * to match the option you would have passed to the gcc wrapper. As an - * example, - * - * export UCLIBC_GCC_DLOPT="-Wl,--dynamic-linker,/lib/ld-alt-linker.so.3" - * - * This is really only useful if target arch == devel arch and DEVEL_PREFIX - * isn't empty. It involves a recompile, but you can at least test apps - * on your devel system if combined with the "rpath" behavor if by using - * LD_LIBRARY_PATH, etc. - * - * Also added check for "-Wl,--dynamic-linker" on the command line. The - * use default dynamic linker or the envirnment-specified dynamic linker - * is disabled in that case. - * - * Added options --uclibc-use-build-dir and --uclibc-use-rpath so that those - * behaviors can be invoked from the command line. - * - */ - -/* - * - * TODO: - * Check/modify gcc-specific environment variables? - */ - -#include <stdio.h> -#include <stdlib.h> -#include <stdarg.h> -#include <string.h> -#include <unistd.h> -#include <errno.h> -#include <sys/stat.h> -#include <sys/wait.h> - -#include "gcc-uClibc.h" - -static char *our_usr_lib_path = "-L"UCLIBC_DEVEL_PREFIX"/lib"; - -static char static_linking[] = "-static"; -static char nostdinc[] = "-nostdinc"; -static char nostartfiles[] = "-nostartfiles"; -static char nodefaultlibs[] = "-nodefaultlibs"; -static char nostdlib[] = "-nostdlib"; -#ifdef __UCLIBC_CTOR_DTOR__ -static char nostdinc_plus[] = "-nostdinc++"; -#endif - -/* Include a local implementation of basename, since this - * uses the host system's C lib, and CYGWIN apparently - * doesn't provide an implementation of basename(). */ -char *basename(const char *path) -{ - register const char *s; - register const char *p; - p = s = path; - while (*s) { - if (*s++ == '/') { - p = s; - } - } - return (char *) p; -} - -char *dirname(char *path) -{ - static const char null_or_empty_or_noslash[] = "."; - register char *s; - register char *last; - char *first; - - last = s = path; - - if (s != NULL) { - -LOOP: - while (*s && (*s != '/')) ++s; - first = s; - while (*s == '/') ++s; - if (*s) { - last = first; - goto LOOP; - } - - if (last == path) { - if (*last != '/') { - goto DOT; - } - if ((*++last == '/') && (last[1] == '\0')) { - ++last; - } - } - *last = '\0'; - return path; - } -DOT: - return (char *) null_or_empty_or_noslash; -} - - -extern void *xmalloc(size_t size) -{ - void *ptr = malloc(size); - - if (!ptr) { - fprintf(stderr, "memory exhausted"); - exit(EXIT_FAILURE); - } - return ptr; -} - -void xstrcat(char **string, ...) -{ - const char *c; - va_list p; - /* Don't bother to calculate how big exerything - * will be, just be careful to not overflow... */ - va_start(p, string); - *string = xmalloc(BUFSIZ); - **string = '\0'; - while ((c = va_arg(p, const char *))) { - strcat(*string, c); - } - va_end(p); -} - -int main(int argc, char **argv) -{ - int use_build_dir = 0, linking = 1, use_static_linking = 0; - int use_stdinc = 1, use_start = 1, use_stdlib = 1, use_pic = 0; - int source_count = 0, use_rpath = 0, verbose = 0; - int minusx = 0; - int i, j, k, l, m, n; - char ** gcc_argv; - char ** gcc_argument; - char ** libraries; - char ** libpath; - char *dlstr; - char *incstr; - char *devprefix; - char *builddir; - char *libstr; - char *build_dlstr = NULL; - char *cc; - char *ep; - char *rpath_link[2]; - char *rpath[2]; - char *uClibc_inc[2]; - char *our_lib_path[2]; - char *crt0_path[2]; - char *crtbegin_path[2]; - char *crtend_path[2]; - const char *application_name; -#ifdef __UCLIBC_CTOR_DTOR__ - char *crti_path[2]; - char *crtn_path[2]; - int len; - int ctor_dtor = 1, cplusplus = 0, use_nostdinc_plus = 0; - int findlibgcc = 1; - char *cpp = NULL; -#endif -#ifdef __UCLIBC_PROFILING__ - int profile = 0; - char *gcrt1_path[2]; -#endif - - cc = getenv("UCLIBC_CC"); - if (cc == NULL) { - cc = GCC_BIN; -#ifdef __UCLIBC_CTOR_DTOR__ - findlibgcc = 0; -#endif - } - - application_name = basename(argv[0]); - if (application_name[0] == '-') - application_name++; - -#ifdef __UCLIBC_CTOR_DTOR__ - /* We must use strstr since g++ might be named like a - * cross compiler (i.e. arm-linux-g++). We must also - * search carefully, in case we are searching something - * like /opt/c++/gcc-3.1/bin/arm-linux-g++ or some similar - * perversion... */ - len = strlen(application_name); - if ((strcmp(application_name+len-3, "g++") == 0) || - (strcmp(application_name+len-3, "c++") == 0)) { - len = strlen(cc); - if (strcmp(cc+len-3, "gcc") == 0) { - cpp = strdup(cc); - cpp[len-1] = '+'; - cpp[len-2] = '+'; - } - cplusplus = 1; - use_nostdinc_plus = 1; - } -#endif - - devprefix = getenv("UCLIBC_DEVEL_PREFIX"); - if (!devprefix) { - devprefix = UCLIBC_DEVEL_PREFIX; - } - - builddir = getenv("UCLIBC_BUILD_DIR"); - if (!builddir) { - builddir = UCLIBC_BUILD_DIR; - } - - incstr = getenv("UCLIBC_GCC_INC"); - libstr = getenv("UCLIBC_GCC_LIB"); - - ep = getenv("UCLIBC_ENV"); - if (!ep) { - ep = ""; - } - - if (strstr(ep,"build") != NULL) { - use_build_dir = 1; - } - - if (strstr(ep,"rpath") != NULL) { - use_rpath = 1; - } - - - xstrcat(&(rpath_link[0]), "-Wl,-rpath-link,", devprefix, "/lib", NULL); - xstrcat(&(rpath_link[1]), "-Wl,-rpath-link,", builddir, "/lib", NULL); - - xstrcat(&(rpath[0]), "-Wl,-rpath,", devprefix, "/lib", NULL); - xstrcat(&(rpath[1]), "-Wl,-rpath,", builddir, "/lib", NULL); - - xstrcat(&(uClibc_inc[0]), devprefix, "/include/", NULL); - xstrcat(&(uClibc_inc[1]), builddir, "/include/", NULL); - -#ifdef __UCLIBC_CTOR_DTOR__ - xstrcat(&(crt0_path[0]), devprefix, "/lib/crt1.o", NULL); - xstrcat(&(crt0_path[1]), builddir, "/lib/crt1.o", NULL); - xstrcat(&(crti_path[0]), devprefix, "/lib/crti.o", NULL); - xstrcat(&(crti_path[1]), builddir, "/lib/crti.o", NULL); - xstrcat(&(crtn_path[0]), devprefix, "/lib/crtn.o", NULL); - xstrcat(&(crtn_path[1]), builddir, "/lib/crtn.o", NULL); -#else - xstrcat(&(crt0_path[0]), devprefix, "/lib/crt0.o", NULL); - xstrcat(&(crt0_path[1]), builddir, "/lib/crt0.o", NULL); -#endif -#ifdef __UCLIBC_PROFILING__ - xstrcat(&(gcrt1_path[0]), devprefix, "/lib/gcrt1.o", NULL); - xstrcat(&(gcrt1_path[1]), builddir, "/lib/gcrt1.o", NULL); -#endif - - xstrcat(&(our_lib_path[0]), "-L", devprefix, "/lib", NULL); - xstrcat(&(our_lib_path[1]), "-L", builddir, "/lib", NULL); - -#ifdef __UCLIBC_HAS_SHARED__ - build_dlstr = "-Wl,--dynamic-linker," BUILD_DYNAMIC_LINKER; - dlstr = getenv("UCLIBC_GCC_DLOPT"); - if (!dlstr) { - dlstr = "-Wl,--dynamic-linker," DYNAMIC_LINKER; - } -#endif - - m = 0; - libraries = __builtin_alloca(sizeof(char*) * (argc)); - libraries[m] = NULL; - - n = 0; - libpath = __builtin_alloca(sizeof(char*) * (argc)); - libpath[n] = NULL; - - for ( i = 1 ; i < argc ; i++ ) { - if (argv[i][0] == '-' && argv[i][1] != '\0') { /* option */ - switch (argv[i][1]) { - case 'c': /* compile or assemble */ - case 'S': /* generate assembler code */ - case 'E': /* preprocess only */ - case 'M': /* generate dependencies */ - linking = 0; - break; - case 'L': /* library */ - libpath[n++] = argv[i]; - libpath[n] = NULL; - if (argv[i][2] == '\0') { - argv[i] = NULL; - libpath[n++] = argv[++i]; - libpath[n] = NULL; - } - argv[i] = NULL; - break; - case 'l': /* library */ - libraries[m++] = argv[i]; - libraries[m] = NULL; - argv[i] = NULL; - break; - case 'x': /* Set target language */ - minusx = 1; - i++; - break; - case 'v': /* verbose */ - if (argv[i][2] == '\0') verbose = 1; - printf("Invoked as %s\n", argv[0]); - break; - case 'n': - if (strcmp(nostdinc, argv[i]) == 0) { - use_stdinc = 0; - } else if (strcmp(nostartfiles, argv[i]) == 0) { -#ifdef __UCLIBC_CTOR_DTOR__ - ctor_dtor = 0; -#endif - use_start = 0; - } else if (strcmp(nodefaultlibs, argv[i]) == 0) { - use_stdlib = 0; - argv[i] = NULL; - } else if (strcmp(nostdlib, argv[i]) == 0) { -#ifdef __UCLIBC_CTOR_DTOR__ - ctor_dtor = 0; -#endif - use_start = 0; - use_stdlib = 0; - } -#ifdef __UCLIBC_CTOR_DTOR__ - else if (strcmp(nostdinc_plus, argv[i]) == 0) { - if (cplusplus) { - use_nostdinc_plus = 0; - } - } -#endif - break; - case 's': - if (strstr(argv[i], static_linking) != NULL) { - use_static_linking = 1; - } - if (strcmp("-shared", argv[i]) == 0) { - use_start = 0; - use_pic = 1; - } - break; - case 'W': /* -static could be passed directly to ld */ - if (strncmp("-Wl,", argv[i], 4) == 0) { - if (strstr(argv[i], static_linking) != NULL) { - use_static_linking = 1; - } - if (strstr(argv[i], "--dynamic-linker") != NULL) { - dlstr = NULL; - } - } - break; -#ifdef __UCLIBC_PROFILING__ - case 'p': - if (strcmp("-pg", argv[i]) == 0) { - profile = 1; - } - break; -#endif - case 'f': - /* Check if we are doing PIC */ - if (strcmp("-fPIC", argv[i]) == 0) { - use_pic = 1; - } else if (strcmp("-fpic", argv[i]) == 0) { - use_pic = 1; - } -#ifdef __UCLIBC_PROFILING__ - else if (strcmp("-fprofile-arcs", argv[i]) == 0) { - profile = 1; - } -#endif - break; - - case '-': - if (strstr(argv[i]+1, static_linking) != NULL) { - use_static_linking = 1; - argv[i] = NULL; - } else if (strcmp("--uclibc-use-build-dir", argv[i]) == 0) { - use_build_dir = 1; - argv[i] = NULL; - } else if (strcmp("--uclibc-use-rpath", argv[i]) == 0) { - use_rpath = 1; - argv[i] = NULL; - } else if (strcmp ("--uclibc-cc", argv[i]) == 0 && argv[i + 1]) { - cc = argv[i + 1]; - argv[i++] = NULL; - argv[i] = NULL; - } else if (strncmp ("--uclibc-cc=", argv[i], 12) == 0) { - cc = argv[i] + 12; - argv[i] = NULL; - } -#ifdef __UCLIBC_CTOR_DTOR__ - else if (strcmp("--uclibc-no-ctors",argv[i]) == 0) { - ctor_dtor = 0; - argv[i] = NULL; - } -#endif - break; - } - } else if (argv[i][0] == '-' && argv[i][1] == '\0') { - /* Reading code from stdin - crazy eh? */ - ++source_count; - } else { /* assume it is an existing source file */ - ++source_count; - } - } - - gcc_argv = __builtin_alloca(sizeof(char*) * (argc + 64)); - gcc_argument = __builtin_alloca(sizeof(char*) * (argc + 20)); - - i = 0; k = 0; -#ifdef __UCLIBC_CTOR_DTOR__ - if (ctor_dtor) { - struct stat statbuf; - if (findlibgcc || stat(LIBGCC_DIR, &statbuf) < 0 || - !S_ISDIR(statbuf.st_mode)) - { - /* Bummer, gcc is hiding from us. This is going - * to really slow things down... bummer. */ - int status, gcc_pipe[2]; - pid_t pid, wpid; - - pipe(gcc_pipe); - if (!(pid = fork())) { - char *argv[4]; - close(gcc_pipe[0]); - close(1); - close(2); - dup2(gcc_pipe[1], 1); - dup2(gcc_pipe[1], 2); - argv[0] = cc; - argv[1] = "-print-libgcc-file-name"; - argv[2] = NULL; - execvp(cc, argv); - close(gcc_pipe[1]); - _exit(EXIT_FAILURE); - } - wpid = 0; - while (wpid != pid) { - wpid = wait(&status); - } - close(gcc_pipe[1]); - if (WIFEXITED(status) && WEXITSTATUS(status)) { -crash_n_burn: - fprintf(stderr, "Unable to locale crtbegin.o provided by gcc"); - exit(EXIT_FAILURE); - } - if (WIFSIGNALED(status)) { - fprintf(stderr, "%s exited because of uncaught signal %d", cc, WTERMSIG(status)); - exit(EXIT_FAILURE); - } - - { - char buf[1024], *dir; - status = read(gcc_pipe[0], buf, sizeof(buf)); - close(gcc_pipe[0]); - if (status < 0) { - goto crash_n_burn; - } - dir = dirname(buf); - xstrcat(&(crtbegin_path[0]), dir, "/crtbegin.o", NULL); - xstrcat(&(crtbegin_path[1]), dir, "/crtbeginS.o", NULL); - xstrcat(&(crtend_path[0]), dir, "/crtend.o", NULL); - xstrcat(&(crtend_path[1]), dir, "/crtendS.o", NULL); - } - - } else { - xstrcat(&(crtbegin_path[0]), LIBGCC_DIR, "crtbegin.o", NULL); - xstrcat(&(crtbegin_path[1]), LIBGCC_DIR, "crtbeginS.o", NULL); - xstrcat(&(crtend_path[0]), LIBGCC_DIR, "crtend.o", NULL); - xstrcat(&(crtend_path[1]), LIBGCC_DIR, "crtendS.o", NULL); - } - } - - if (cplusplus && cpp) - gcc_argv[i++] = cpp; - else -#endif - gcc_argv[i++] = cc; - - for ( j = 1 ; j < argc ; j++ ) { - if (argv[j] != NULL) { - gcc_argument[k++] = argv[j]; - } - } - gcc_argument[k] = NULL; - - if (linking && source_count) { -#if defined __HAVE_ELF__ && ! defined __UCLIBC_HAS_MMU__ - gcc_argv[i++] = "-Wl,-elf2flt"; -#endif - gcc_argv[i++] = nostdlib; - if (use_static_linking) { - gcc_argv[i++] = static_linking; - } - if (!use_static_linking) { - if (dlstr && use_build_dir) { - gcc_argv[i++] = build_dlstr; - } else if (dlstr) { - gcc_argv[i++] = dlstr; - } - if (use_rpath) { - gcc_argv[i++] = rpath[use_build_dir]; - } - } - for ( l = 0 ; l < n ; l++ ) { - if (libpath[l]) gcc_argv[i++] = libpath[l]; - } - gcc_argv[i++] = rpath_link[use_build_dir]; /* just to be safe */ - if (libstr) - gcc_argv[i++] = libstr; - gcc_argv[i++] = our_lib_path[use_build_dir]; - if (!use_build_dir) { - gcc_argv[i++] = our_usr_lib_path; - } - } - if (use_stdinc && source_count) { - gcc_argv[i++] = nostdinc; -#ifdef __UCLIBC_CTOR_DTOR__ - if (cplusplus) { - char *cppinc; - if (use_nostdinc_plus) { - gcc_argv[i++] = nostdinc_plus; - } - xstrcat(&cppinc, uClibc_inc[use_build_dir], "g++/", NULL); - gcc_argv[i++] = "-isystem"; - gcc_argv[i++] = cppinc; - xstrcat(&cppinc, uClibc_inc[use_build_dir], "g++-v3/", NULL); - gcc_argv[i++] = "-isystem"; - gcc_argv[i++] = cppinc; - } -#endif - gcc_argv[i++] = "-isystem"; - gcc_argv[i++] = uClibc_inc[use_build_dir]; - gcc_argv[i++] = "-iwithprefix"; - gcc_argv[i++] = "include"; - if (incstr) - gcc_argv[i++] = incstr; - } - - if (linking && source_count) { - -#ifdef __UCLIBC_PROFILING__ - if (profile) { - gcc_argv[i++] = gcrt1_path[use_build_dir]; - } -#endif -#ifdef __UCLIBC_CTOR_DTOR__ - if (ctor_dtor) { - gcc_argv[i++] = crti_path[use_build_dir]; - if (use_pic) { - gcc_argv[i++] = crtbegin_path[1]; - } else { - gcc_argv[i++] = crtbegin_path[0]; - } - } -#endif - if (use_start) { -#ifdef __UCLIBC_PROFILING__ - if (!profile) -#endif - { - gcc_argv[i++] = crt0_path[use_build_dir]; - } - } - for ( l = 0 ; l < k ; l++ ) { - if (gcc_argument[l]) gcc_argv[i++] = gcc_argument[l]; - } - if (use_stdlib) { - //gcc_argv[i++] = "-Wl,--start-group"; - gcc_argv[i++] = "-lgcc"; - } - for ( l = 0 ; l < m ; l++ ) { - if (libraries[l]) gcc_argv[i++] = libraries[l]; - } - if (use_stdlib) { -#ifdef __UCLIBC_CTOR_DTOR__ - if (cplusplus) { - gcc_argv[i++] = "-lstdc++"; - gcc_argv[i++] = "-lm"; - } -#endif - gcc_argv[i++] = "-lc"; - gcc_argv[i++] = "-lgcc"; - //gcc_argv[i++] = "-Wl,--end-group"; - } -#ifdef __UCLIBC_CTOR_DTOR__ - if (ctor_dtor) { - if (minusx) { - gcc_argv[i++] = "-x"; - gcc_argv[i++] = "none"; - } - if (use_pic) { - gcc_argv[i++] = crtend_path[1]; - } else { - gcc_argv[i++] = crtend_path[0]; - } - - gcc_argv[i++] = crtn_path[use_build_dir]; - } -#endif - } else { - for ( l = 0 ; l < k ; l++ ) { - if (gcc_argument[l]) gcc_argv[i++] = gcc_argument[l]; - } - } - gcc_argv[i++] = NULL; - - if (verbose) { - for ( j = 0 ; gcc_argv[j] ; j++ ) { - printf("arg[%2i] = %s\n", j, gcc_argv[j]); - } - fflush(stdout); - } - //no need to free memory from xstrcat because we never return... -#ifdef __UCLIBC_CTOR_DTOR__ - if (cplusplus && cpp) { - execvp(cpp, gcc_argv); - fprintf(stderr, "%s: %s\n", cpp, strerror(errno)); - } else -#endif - { - execvp(cc, gcc_argv); - fprintf(stderr, "%s: %s\n", cc, strerror(errno)); - } - exit(EXIT_FAILURE); -} |