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authorJeff Law <law@redhat.com>1995-05-12 01:10:28 +0000
committerJeff Law <law@redhat.com>1995-05-12 01:10:28 +0000
commit2d2959e85259dd49a2be7c708e845df36432aa3b (patch)
treedee25a1b990617a5c05c40c1cf7ecc2ea9771a85 /gdb/hppam3-nat.c
parent511cd41cc182c50d1afa7793ca3fee2d20366b8f (diff)
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* 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.
Diffstat (limited to 'gdb/hppam3-nat.c')
-rw-r--r--gdb/hppam3-nat.c141
1 files changed, 141 insertions, 0 deletions
diff --git a/gdb/hppam3-nat.c b/gdb/hppam3-nat.c
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+/* 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);
+}