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If we loaded an nmagic on a subpage boundary, adjust epp->ep_d{addr,size} so

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that they start on a page boundary.  This is needed so that obreak(2) works
properly.
This commit is contained in:
matt 2000-06-28 00:14:44 +00:00
parent 975751cda2
commit 3c173d4927
1 changed files with 9 additions and 1 deletions
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10
sys/compat/ibcs2/ibcs2_exec.c
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@ -1,4 +1,4 @@
/* $NetBSD: ibcs2_exec.c,v 1.32 2000/06/26 14:38:55 mrg Exp $ */
/* $NetBSD: ibcs2_exec.c,v 1.33 2000/06/28 00:14:44 matt Exp $ */
/*
* Copyright (c) 1994, 1995, 1998 Scott Bartram
@ -498,6 +498,14 @@ exec_ibcs2_coff_prep_nmagic(p, epp, fp, ap)
epp->ep_dsize += ap->a_bsize;
}
DPRINTF(("\n"));
/* The following is to make obreak(2) happy. It expects daddr
* to on a page boundary and will round up dsize to a page
* address.
*/
if (trunc_page(epp->ep_daddr) != epp->ep_daddr) {
epp->ep_dsize += epp->ep_daddr - trunc_page(epp->ep_daddr);
epp->ep_daddr = trunc_page(epp->ep_daddr);
}
return exec_ibcs2_coff_setup_stack(p, epp);
}