diff options
| -rw-r--r-- | sys/lib/libsa/exec_som.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/sys/lib/libsa/exec_som.c b/sys/lib/libsa/exec_som.c new file mode 100644 index 00000000000..c2ac9793132 --- /dev/null +++ b/sys/lib/libsa/exec_som.c @@ -0,0 +1,86 @@ +/* $OpenBSD: exec_som.c,v 1.3 1998/07/14 17:17:54 mickey Exp $ */ + +/* + * Copyright (c) 1998 Michael Shalayeff + * 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 Michael Shalayeff. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. + */ + +#include <sys/param.h> +#include "libsa.h" +#include <machine/exec.h> +#include <lib/libsa/exec.h> + +int +som_probe(fd, hdr) + int fd; + union x_header *hdr; +{ + return !SOM_BADMAGIC(&hdr->x_som); +} + + +int +som_load(fd, xp) + int fd; + register struct x_param *xp; +{ + register struct som_filehdr *xf = &xp->xp_hdr->x_som; + struct som_exec_auxhdr x; + + if (lseek(fd, xf->aux_header_location, SEEK_SET) < 0 || + read (fd, &x, sizeof(x)) != sizeof(x)) { + if (!errno) + errno = EIO; + return -1; + } + + xp->xp_entry = x.exec_entry; + + xp->text.size = hppa_round_page(x.exec_tsize); + xp->data.size = hppa_round_page(x.exec_dsize); + xp->bss.size = x.exec_bsize; + xp->sym.size = xf->symbol_total * + sizeof(struct som_symbol_dictionary_record); + xp->str.size = xf->symbol_strings_size; + + xp->text.foff = x.exec_tfile; + xp->data.foff = x.exec_dfile; + xp->bss.foff = 0; + if (xf->symbol_total) { + xp->sym.foff = xf->symbol_location; + xp->str.foff = xf->symbol_strings_location; + } + + xp->text.addr = x.exec_tmem; + xp->data.addr = x.exec_dmem; + xp->bss.addr = xp->data.addr + x.exec_dsize; + xp->sym.addr = xp->bss.addr + xp->bss.size; + xp->str.addr = xp->sym.addr + xp->sym.size; + + return 0; +} |