diff options
author | obrien <obrien@FreeBSD.org> | 2003-06-27 03:59:46 +0000 |
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committer | obrien <obrien@FreeBSD.org> | 2003-06-27 03:59:46 +0000 |
commit | d436927cebd1ffbeb77b5359e2d50e6ef72bda83 (patch) | |
tree | f1838af78604bcac8b1d8ee905b456b9d6b3794a /usr.bin/strip/strip.c | |
parent | ce928641b590cf8e5d360a6a028820295caf9acc (diff) | |
download | FreeBSD-src-d436927cebd1ffbeb77b5359e2d50e6ef72bda83.zip FreeBSD-src-d436927cebd1ffbeb77b5359e2d50e6ef72bda83.tar.gz |
Finish the deorbital burn of the i386-only a.out toolchain.
Diffstat (limited to 'usr.bin/strip/strip.c')
-rw-r--r-- | usr.bin/strip/strip.c | 266 |
1 files changed, 0 insertions, 266 deletions
diff --git a/usr.bin/strip/strip.c b/usr.bin/strip/strip.c deleted file mode 100644 index 0169aa8..0000000 --- a/usr.bin/strip/strip.c +++ /dev/null @@ -1,266 +0,0 @@ -/* - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef lint -static const char copyright[] = -"@(#) Copyright (c) 1988, 1993\n\ - The Regents of the University of California. All rights reserved.\n"; -#endif /* not lint */ - -#ifndef lint -#if 0 -static char sccsid[] = "@(#)strip.c 8.1 (Berkeley) 6/6/93"; -#endif -static const char rcsid[] = - "$FreeBSD$"; -#endif /* not lint */ - -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/mman.h> - -#include <a.out.h> -#include <err.h> -#include <errno.h> -#include <fcntl.h> -#include <limits.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -typedef struct exec EXEC; -typedef struct nlist NLIST; - -#define strx n_un.n_strx - -void s_stab(const char *, int, EXEC *); -void s_sym(const char *, int, EXEC *); -static void usage(void); - -int xflag = 0; -int err_val = 0; - -int -main(argc, argv) - int argc; - char *argv[]; -{ - register int fd, nb; - EXEC head; - void (*sfcn)(const char *, int, EXEC *); - int ch; - char *fn; - - sfcn = s_sym; - while ((ch = getopt(argc, argv, "dx")) != -1) - switch(ch) { - case 'x': - xflag = 1; - /*FALLTHROUGH*/ - case 'd': - sfcn = s_stab; - break; - case '?': - default: - usage(); - } - argc -= optind; - argv += optind; - - while ((fn = *argv++) != NULL) { - if ((fd = open(fn, O_RDWR)) < 0 || - (nb = read(fd, &head, sizeof(EXEC))) == -1) { - warn("%s", fn); - err_val = 1; - if (fd >= 0 && close(fd)) { - warn("%s", fn); - err_val = 1; - } - continue; - } - if (nb != sizeof(EXEC) || N_BADMAG(head)) { - warnx("%s: %s", fn, strerror(EFTYPE)); - err_val = 1; - if (close(fd)) { - warn("%s", fn); - err_val = 1; - } - continue; - } - sfcn(fn, fd, &head); - if (close(fd)) { - warn("%s", fn); - err_val = 1; - } - } - exit(err_val); -} - -void -s_sym(fn, fd, ep) - const char *fn; - int fd; - register EXEC *ep; -{ - register off_t fsize; - - /* If no symbols or data/text relocation info, quit. */ - if (!ep->a_syms && !ep->a_trsize && !ep->a_drsize) - return; - - /* - * New file size is the header plus text and data segments. - */ - fsize = N_DATOFF(*ep) + ep->a_data; - - /* Set symbol size and relocation info values to 0. */ - ep->a_syms = ep->a_trsize = ep->a_drsize = 0; - - /* Rewrite the header and truncate the file. */ - if (lseek(fd, (off_t)0, SEEK_SET) == -1 || - write(fd, ep, sizeof(EXEC)) != sizeof(EXEC) || - ftruncate(fd, fsize)) { - warn("%s", fn); - err_val = 1; - } -} - -void -s_stab(fn, fd, ep) - const char *fn; - int fd; - EXEC *ep; -{ - register int cnt, len; - register char *nstr, *nstrbase, *p, *strbase; - register NLIST *sym, *nsym; - struct stat sb; - NLIST *symbase; - - /* Quit if no symbols. */ - if (ep->a_syms == 0) - return; - - /* Stat the file. */ - if (fstat(fd, &sb) < 0) { - warn("%s", fn); - err_val = 1; - return; - } - - /* Check size. */ - if (sb.st_size > SIZE_T_MAX) { - warnx("%s: %s", fn, strerror(EFBIG)); - err_val = 1; - return; - } - - /* Map the file. */ - if ((ep = (EXEC *)mmap(NULL, (size_t)sb.st_size, - PROT_READ | PROT_WRITE, MAP_SHARED, fd, (off_t)0)) == (EXEC *)MAP_FAILED) { - warn("%s", fn); - err_val = 1; - return; - } - - /* - * Initialize old and new symbol pointers. They both point to the - * beginning of the symbol table in memory, since we're deleting - * entries. - */ - sym = nsym = symbase = (NLIST *)((char *)ep + N_SYMOFF(*ep)); - - /* - * Allocate space for the new string table, initialize old and - * new string pointers. Handle the extra long at the beginning - * of the string table. - */ - strbase = (char *)ep + N_STROFF(*ep); - if ((nstrbase = malloc((size_t)*(u_long *)strbase)) == NULL) { - warn(NULL); - err_val = 1; - munmap((caddr_t)ep, sb.st_size); - return; - } - nstr = nstrbase + sizeof(u_long); - - /* - * Read through the symbol table. For each non-debugging symbol, - * copy it and save its string in the new string table. Keep - * track of the number of symbols. - */ - for (cnt = ep->a_syms / sizeof(NLIST); cnt--; ++sym) - if (!(sym->n_type & N_STAB) && sym->strx) { - *nsym = *sym; - nsym->strx = nstr - nstrbase; - p = strbase + sym->strx; - if (xflag && - (!(sym->n_type & N_EXT) || - (sym->n_type & ~N_EXT) == N_FN || - strcmp(p, "gcc_compiled.") == 0 || - strcmp(p, "gcc2_compiled.") == 0 || - strcmp(p, "___gnu_compiled_c") == 0)) - continue; - len = strlen(p) + 1; - bcopy(p, nstr, len); - nstr += len; - ++nsym; - } - - /* Fill in new symbol table size. */ - ep->a_syms = (nsym - symbase) * sizeof(NLIST); - - /* Fill in the new size of the string table. */ - *(u_long *)nstrbase = len = nstr - nstrbase; - - /* - * Copy the new string table into place. Nsym should be pointing - * at the address past the last symbol entry. - */ - bcopy(nstrbase, (void *)nsym, len); - - /* Truncate to the current length. */ - if (ftruncate(fd, (char *)nsym + len - (char *)ep)) { - warn("%s", fn); - err_val = 1; - } - munmap((caddr_t)ep, (size_t)sb.st_size); -} - -static void -usage() -{ - (void)fprintf(stderr, "usage: strip [-dx] file ...\n"); - exit(1); -} |