From 2d2959e85259dd49a2be7c708e845df36432aa3b Mon Sep 17 00:00:00 2001
From: Jeff Law <law@redhat.com>
Date: Fri, 12 May 1995 01:10:28 +0000
Subject: 	* Support debugging using native MACH primitives on
 hppa*-*-osf*. 	* configure.in: hppa*-*-osf* != hppa*-*-bsd* anymore. 	*
 config/pa/hppaosf.mh: New file. 	* config/pa/nm-hppao.h: Likewise. 
 * hppam3-nat.c: Likewise. 	* config/pa/tm-hppao.h (PSW_SS): Define for
 single-stepping. 	(MACHINE_CPROC_*_OFFSET): Define. 	(TRACE_*):
 Define. 	(START_INFERIOR_TRAPS_EXPECTED): Delete definition.

---
 gdb/hppam3-nat.c | 141 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 141 insertions(+)
 create mode 100644 gdb/hppam3-nat.c

(limited to 'gdb/hppam3-nat.c')

diff --git a/gdb/hppam3-nat.c b/gdb/hppam3-nat.c
new file mode 100644
index 0000000..2377822
--- /dev/null
+++ b/gdb/hppam3-nat.c
@@ -0,0 +1,141 @@
+/* Low level interface to HP800 running mach 4.0.
+   Copyright (C) 1995 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 "inferior.h"
+#include "floatformat.h"
+
+#include <stdio.h>
+
+#include <mach.h>
+#include <mach/message.h>
+#include <mach/exception.h>
+#include <mach_error.h>
+
+#include <target.h>
+
+/*
+ * Fetch inferiors registers for gdb.
+ * REGNO specifies which (as gdb views it) register, -1 for all.
+ */
+
+void
+fetch_inferior_registers (regno)
+     int regno;
+{
+  kern_return_t ret;
+  thread_state_data_t state;
+  unsigned int stateCnt = HP800_THREAD_STATE_COUNT;
+  int index;
+  
+  if (! MACH_PORT_VALID (current_thread))
+    error ("fetch inferior registers: Invalid thread");
+
+  if (must_suspend_thread)
+    setup_thread (current_thread, 1);
+
+  ret = thread_get_state (current_thread,
+			  HP800_THREAD_STATE,
+			  state,
+			  &stateCnt);
+
+  if (ret != KERN_SUCCESS)
+    warning ("fetch_inferior_registers: %s ",
+	     mach_error_string (ret));
+  else
+    {
+      for (index = 0; index < NUM_REGS; index++) 
+	supply_register (index,&state[index]);
+    }
+
+  if (must_suspend_thread)
+    setup_thread (current_thread, 0);
+}
+
+/* Store our register values back into the inferior.
+ * If REGNO is -1, do this for all registers.
+ * Otherwise, REGNO specifies which register
+ *
+ * On mach3 all registers are always saved in one call.
+ */
+void
+store_inferior_registers (regno)
+     int regno;
+{
+  kern_return_t ret;
+  thread_state_data_t state;
+  unsigned int stateCnt = HP800_THREAD_STATE_COUNT;
+  register int index;
+
+  if (! MACH_PORT_VALID (current_thread))
+    error ("store inferior registers: Invalid thread");
+
+  if (must_suspend_thread)
+    setup_thread (current_thread, 1);
+
+  /* Fetch the state of the current thread */
+  ret = thread_get_state (current_thread,
+			  HP800_THREAD_STATE,
+			  state,
+			  &stateCnt);
+
+   if (ret != KERN_SUCCESS) 
+    {
+      warning ("store_inferior_registers (get): %s",
+	       mach_error_string (ret));
+      if (must_suspend_thread)
+	setup_thread (current_thread, 0);
+      return;
+    }
+
+
+  /* move gdb's registers to thread's state
+   *
+   * Since we save all registers anyway, save the ones
+   * that gdb thinks are valid (e.g. ignore the regno
+   * parameter)
+   */
+  if (regno > 0 && regno < NUM_REGS ) 
+    {
+      memcpy(&state[regno], &registers[REGISTER_BYTE (regno)], 
+	     REGISTER_RAW_SIZE(regno));
+    }
+  else
+    {
+      for (index = 0; index < NUM_REGS; index++) 
+	memcpy(&state[index], &registers[REGISTER_BYTE (index)], 
+	       REGISTER_RAW_SIZE(index));
+/* 	state[index] = registers[REGISTER_BYTE (index)];*/
+
+    }
+  
+  /* Write gdb's current view of register to the thread
+   */
+  ret = thread_set_state (current_thread,
+			  HP800_THREAD_STATE,
+			  state,
+			  HP800_THREAD_STATE_COUNT);
+  
+  if (ret != KERN_SUCCESS)
+    warning ("store_inferior_registers (set): %s",
+	     mach_error_string (ret));
+
+  if (must_suspend_thread)
+    setup_thread (current_thread, 0);
+}
-- 
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