From 0e56aeafa8e93c62a52a7b45d90550130285576b Mon Sep 17 00:00:00 2001
From: Mark Kettenis <kettenis@gnu.org>
Date: Sat, 26 Jun 2004 10:06:35 +0000
Subject: Add OpenBSD/hppa support. * NEWS (New native configurations): Mention
 OpenBSD/hppa. * hppabsd-nat.c, hppabsd-tdep.c, config/pa/obsd.mh,
 config/pa/obsd.mt, config/pa/nm-obsd.h, config/pa/tm-bsd.h: New files. *
 Makefile.in (ALLDEPFILES): Add hppabsd-nat.c and hppabsd-tdep.c.
 (hppabsd-nat.o, hppabsd-tdep.c): New dependencies. * configure.host: Add
 hppa*-*-openbsd*. * configure.tgt: Add hppa*-*-openbsd*.

---
 gdb/hppabsd-nat.c | 119 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100644 gdb/hppabsd-nat.c

(limited to 'gdb/hppabsd-nat.c')

diff --git a/gdb/hppabsd-nat.c b/gdb/hppabsd-nat.c
new file mode 100644
index 0000000..1962ded
--- /dev/null
+++ b/gdb/hppabsd-nat.c
@@ -0,0 +1,119 @@
+/* Native-dependent code for HP PA-RISC BSD's.
+
+   Copyright 2004 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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include "defs.h"
+#include "inferior.h"
+#include "regcache.h"
+
+#include <sys/types.h>
+#include <sys/ptrace.h>
+#include <machine/reg.h>
+
+#include "hppa-tdep.h"
+
+static int
+hppabsd_gregset_supplies_p (int regnum)
+{
+  return (regnum >= HPPA_R0_REGNUM && regnum <= HPPA_PCOQ_TAIL_REGNUM);
+}
+
+/* Supply the general-purpose registers stored in GREGS to REGCACHE.  */
+
+static void
+hppabsd_supply_gregset (struct regcache *regcache, const void *gregs)
+{
+  const char *regs = gregs;
+  int regnum;
+
+  for (regnum = HPPA_R1_REGNUM; regnum <= HPPA_R31_REGNUM; regnum++)
+    regcache_raw_supply (regcache, regnum, regs + regnum * 4);
+
+  regcache_raw_supply (regcache, HPPA_SAR_REGNUM, regs);
+  regcache_raw_supply (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 32 * 4);
+  regcache_raw_supply (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 33 * 4);
+}
+
+/* Collect the general-purpose registers from REGCACHE and store them
+   in GREGS.  */
+
+static void
+hppabsd_collect_gregset (const struct regcache *regcache,
+			  void *gregs, int regnum)
+{
+  char *regs = gregs;
+  int i;
+
+  for (i = HPPA_R1_REGNUM; i <= HPPA_R31_REGNUM; i++)
+    {
+      if (regnum == -1 || regnum == i)
+	regcache_raw_collect (regcache, i, regs + i * 4);
+    }
+
+  if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
+    regcache_raw_collect (regcache, HPPA_SAR_REGNUM, regs);
+  if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
+    regcache_raw_collect (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 32 * 4);
+  if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
+    regcache_raw_collect (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 33 * 4);
+}
+
+
+/* Fetch register REGNUM from the inferior.  If REGNUM is -1, do this
+   for all registers (including the floating-point registers).  */
+
+void
+fetch_inferior_registers (int regnum)
+{
+  struct regcache *regcache = current_regcache;
+
+  if (regnum == -1 || hppabsd_gregset_supplies_p (regnum))
+    {
+      struct reg regs;
+
+      if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
+		  (PTRACE_ARG3_TYPE) &regs, 0) == -1)
+	perror_with_name ("Couldn't get registers");
+
+      hppabsd_supply_gregset (regcache, &regs);
+    }
+}
+
+/* Store register REGNUM back into the inferior.  If REGNUM is -1, do
+   this for all registers (including the floating-point registers).  */
+
+void
+store_inferior_registers (int regnum)
+{
+  if (regnum == -1 || hppabsd_gregset_supplies_p (regnum))
+    {
+      struct reg regs;
+
+      if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
+                  (PTRACE_ARG3_TYPE) &regs, 0) == -1)
+        perror_with_name ("Couldn't get registers");
+
+      hppabsd_collect_gregset (current_regcache, &regs, regnum);
+
+      if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
+	          (PTRACE_ARG3_TYPE) &regs, 0) == -1)
+        perror_with_name ("Couldn't write registers");
+    }
+}
-- 
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