First cut at support for all BSD variants on 386.

* tm-i386bsd.h, xm-i386bsd.h:  New config files.
* i386b-nat.c:  New native support file.
* configure.in:  Add host and target for i[34]86-*-bsd*.
* config/i386bsd.mh, config/i386bsd.mt:  New config files.

1 files changed, 59 insertions, 0 deletions

diff --git a/gdb/i386b-nat.c b/gdb/i386b-nat.c
new file mode 100644
index 0000000..5c1ca07
--- /dev/null
+++ b/gdb/i386b-nat.c
@@ -0,0 +1,59 @@
+/* 386BSD host interface.
+   Copyright (C) 1988, 1989, 1991 Free Software Foundation, Inc.
+
+This file is part of GDB.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#include "defs.h"
+
+#include <machine/reg.h>
+
+
+/* this table must line up with REGISTER_NAMES in tm-i386.h */
+/* symbols like 'tEAX' come from <machine/reg.h> */
+static int tregmap[] = 
+{
+  tEAX, tECX, tEDX, tEBX,
+  tESP, tEBP, tESI, tEDI,
+  tEIP, tEFLAGS, tCS, tSS
+};
+static int sregmap[] = 
+{
+  sEAX, sECX, sEDX, sEBX,
+  sESP, sEBP, sESI, sEDI,
+  sEIP, sEFLAGS, sCS, sSS
+};
+
+/* blockend is the value of u.u_ar0, and points to the
+   place where ES is stored.  */
+
+int
+i386_register_u_addr (blockend, regnum)
+     int blockend;
+     int regnum;
+{
+  /* The following condition is a kludge to get at the proper register map
+     depending upon the state of pcb_flag.
+     The proper condition would be
+     if (u.u_pcb.pcb_flag & FM_TRAP)
+     but that would require a ptrace call here and wouldn't work
+     for corefiles.  */
+
+  if (blockend < 0x1fcc)
+    return (blockend + 4 * tregmap[regnum]);
+  else
+    return (blockend + 4 * sregmap[regnum]);
+}