diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/lib/libsa/exec_ecoff.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/sys/lib/libsa/exec_ecoff.c b/sys/lib/libsa/exec_ecoff.c new file mode 100644 index 00000000000..fe08151dc59 --- /dev/null +++ b/sys/lib/libsa/exec_ecoff.c @@ -0,0 +1,83 @@ +/* $OpenBSD: exec_ecoff.c,v 1.1 1998/07/14 15:08:27 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 "libsa.h" +#include <lib/libsa/exec.h> + +int +ecoff_probe(fd, hdr) + int fd; + union x_header *hdr; +{ + return !ECOFF_BADMAG(&(hdr->x_ecoff)); +} + + +int +ecoff_load(fd, xp) + int fd; + register struct x_param *xp; +{ + register struct ecoff_exechdr *x = &xp->xp_hdr->x_ecoff; + +#ifdef EXEC_DEBUG + printf("\nstruct ecoff_exechdr { f.{%x, %x, %x, %lx, %x, %x, %x}\n" + "\ta.{%x, %lx, %lx, %lx, %lx, %lx, %lx, %lx} }\n", + x->f.f_magic, x->f.f_nscns, x->f.f_timdat, x->f.f_symptr, + x->f.f_nsyms, x->f.f_opthdr, x->f.f_flags, + x->a.magic, x->a.tsize, x->a.dsize, x->a.bsize, + x->a.entry, x->a.text_start, x->a.data_start, x->a.bss_start); +#endif + xp->xp_entry = x->a.entry; + + xp->text.size = x->a.tsize; + xp->data.size = x->a.dsize; + xp->bss.size = x->a.bsize; + xp->sym.size = x->f.f_nsyms * sizeof (struct ecoff_extsym); + xp->str.size = 0; /* will be hacked later in exec() */ + + xp->text.foff = ECOFF_TXTOFF(x); + xp->data.foff = xp->text.foff + x->a.tsize; + xp->bss.foff = 0; + if (x->f.f_symptr) { + xp->sym.foff = xp->data.foff + x->a.dsize; + xp->str.foff = xp->sym.foff + xp->sym.size; + } + + xp->text.addr = x->a.text_start; + xp->data.addr = x->a.data_start; + xp->bss.addr = x->a.bss_start; + xp->sym.addr = x->f.f_symptr; + xp->str.addr = xp->sym.addr + xp->sym.size; + + return 0; +} |