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Diffstat (limited to 'usr.sbin/kgzip/kgzld.c')
-rw-r--r-- | usr.sbin/kgzip/kgzld.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/usr.sbin/kgzip/kgzld.c b/usr.sbin/kgzip/kgzld.c new file mode 100644 index 0000000..11a20a5 --- /dev/null +++ b/usr.sbin/kgzip/kgzld.c @@ -0,0 +1,101 @@ +/* + * Copyright (c) 1999 Global Technology Associates, Inc. + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. + * + * $FreeBSD$ + */ + +#include <sys/types.h> +#include <sys/endian.h> +#include <sys/wait.h> + +#include <err.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "aouthdr.h" +#include "elfhdr.h" +#include "kgzip.h" + +#define align(x, y) (((x) + (y) - 1) & ~((y) - 1)) + +/* + * Link KGZ file and loader. + */ +void +kgzld(struct kgz_hdr * kh, const char *f1, const char *f2) +{ + char addr[16]; + struct iodesc idi; + pid_t pid; + size_t n; + int status; + + if (strcmp(kh->ident, "KGZ")) { + if ((idi.fd = open(idi.fname = f1, O_RDONLY)) == -1) + err(1, "%s", idi.fname); + if (!format) { + union { + struct exec ex; + Elf32_Ehdr ee; + } hdr; + n = xread(&idi, &hdr, sizeof(hdr), 0); + if (n >= sizeof(hdr.ee) && IS_ELF(hdr.ee)) + format = F_ELF; + else if (n >= sizeof(hdr.ex) && + N_GETMAGIC(hdr.ex) == OMAGIC) + format = F_AOUT; + if (!format) + errx(1, "%s: Format not supported", idi.fname); + } + n = xread(&idi, kh, sizeof(*kh), + format == F_AOUT ? sizeof(struct kgz_aouthdr0) + : sizeof(struct kgz_elfhdr)); + xclose(&idi); + if (n != sizeof(*kh) || strcmp(kh->ident, "KGZ")) + errx(1, "%s: Invalid format", idi.fname); + } + sprintf(addr, "%#x", align(kh->dload + kh->dsize, 0x1000)); + switch (pid = fork()) { + case -1: + err(1, NULL); + case 0: + if (format == F_AOUT) + execlp("ld", "ld", "-aout", "-Z", "-T", addr, "-o", f2, + loader, f1, (char *)NULL); + else + execlp("ld", "ld", "-Ttext", addr, "-o", f2, loader, f1, + (char *)NULL); + warn(NULL); + _exit(1); + default: + if ((pid = waitpid(pid, &status, 0)) == -1) + err(1, NULL); + if (WIFSIGNALED(status) || WEXITSTATUS(status)) + exit(1); + } +} |