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authorJim Kingdon <jkingdon@engr.sgi.com>1993-10-07 20:13:08 +0000
committerJim Kingdon <jkingdon@engr.sgi.com>1993-10-07 20:13:08 +0000
commitc2d751d5e51893b95c86ada0899d8ed74f4ba9a7 (patch)
treef169f2c664d75b3c75a6d7e1a42f780a3f574c49 /gdb/ns32km3-nat.c
parent44a19d2c5b5d1c971ec61c966cd7cebb34996d68 (diff)
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New Mach stuff:
* config/i386/i386mach.c: Explain this is for the old (probably non-functional and/or obsolete) Mach stuff. * m3-nat.c, config/nm-m3.h, i386m3-nat.c, mipsm3-nat.c, ns32km3-nat.c, config/i386/{i386m3.mh,i386m3.mt,tm-i386m3.h,xm-i386m3.h}, config/i386/{i386mk.mh,i386mk.mt,tm-i386mk.h,xm-i386mk.h}, config/mips/{mipsm3.mh,mipsm3.mt,tm-mipsm3.h,xm-mipsm3.h}, config/ns32k/{ns32km3.mh,ns32km3.mt,tm-ns32km3.h,xm-ns32km3.h}: New files.
Diffstat (limited to 'gdb/ns32km3-nat.c')
-rw-r--r--gdb/ns32km3-nat.c193
1 files changed, 193 insertions, 0 deletions
diff --git a/gdb/ns32km3-nat.c b/gdb/ns32km3-nat.c
index e69de29..087bb72 100644
--- a/gdb/ns32km3-nat.c
+++ b/gdb/ns32km3-nat.c
@@ -0,0 +1,193 @@
+/* Low level interface to ns532 running mach 3.0.
+ Copyright (C) 1992 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 <stdio.h>
+
+#include <mach.h>
+#include <mach/message.h>
+#include <mach/exception.h>
+#include <mach_error.h>
+
+#define private static
+
+
+/* Find offsets to thread states at compile time.
+ * If your compiler does not grok this, calculate offsets
+ * offsets yourself and use them (or get a compatible compiler :-)
+ */
+
+#define REG_N_OFFSET(reg) (int)(&((struct ns532_combined_state *)0)->ts.reg)
+#define REG_F_OFFSET(reg) (int)(&((struct ns532_combined_state *)0)->fs.reg)
+
+/* at reg_offset[i] is the offset to the ns532_combined_state
+ * location where the gdb registers[i] is stored.
+ */
+
+static int reg_offset[] =
+{
+ REG_N_OFFSET(r0), REG_N_OFFSET(r1), REG_N_OFFSET(r2), REG_N_OFFSET(r3),
+ REG_N_OFFSET(r4), REG_N_OFFSET(r5), REG_N_OFFSET(r6), REG_N_OFFSET(r7),
+ REG_F_OFFSET(l0a), REG_F_OFFSET(l1a),REG_F_OFFSET(l2a),REG_F_OFFSET(l3a),
+ REG_F_OFFSET(l4a), REG_F_OFFSET(l5a),REG_F_OFFSET(l6a),REG_F_OFFSET(l7a),
+ REG_N_OFFSET(sp), REG_N_OFFSET(fp), REG_N_OFFSET(pc), REG_N_OFFSET(psr),
+ REG_F_OFFSET(fsr),
+ REG_F_OFFSET(l0a), REG_F_OFFSET(l2a),REG_F_OFFSET(l4a),REG_F_OFFSET(l6a)
+ /* @@@ 532 has more double length floating point regs, not accessed currently */
+};
+
+/* Fetch COUNT contiguous registers from thread STATE starting from REGNUM
+ * Caller knows that the regs handled in one transaction are of same size.
+ */
+#define FETCH_REGS(state, regnum, count) \
+ bcopy ((char *)state+reg_offset[ regnum ], \
+ &registers[REGISTER_BYTE (regnum)], \
+ count*sizeof (REGISTER_TYPE))
+
+/* Store COUNT contiguous registers to thread STATE starting from REGNUM */
+#define STORE_REGS(state, regnum, count) \
+ bcopy (&registers[REGISTER_BYTE (regnum)], \
+ (char *)state+reg_offset[ regnum ], \
+ count*sizeof (REGISTER_TYPE))
+
+/* 4.4 bfd support function */
+/* jtv@hut.fi: UNIMPLEMENTED!!!!! */
+
+void
+fetch_core_registers (core_regs, core_reg_size, which)
+ char *core_regs;
+ unsigned int core_reg_size;
+ int which;
+{
+ error ("Unimplemented routine fetch_core_registers called");
+}
+
+/*
+ * 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 = NS532_COMBINED_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,
+ NS532_COMBINED_STATE,
+ state,
+ &stateCnt);
+
+ if (ret != KERN_SUCCESS)
+ message ("fetch_inferior_registers: %s ",
+ mach_error_string (ret));
+#if 0
+ /* It may be more effective to store validate all of them,
+ * since we fetched them all anyway
+ */
+ else if (regno != -1)
+ supply_register (regno, (char *)state+reg_offset[regno]);
+#endif
+ else
+ {
+ for (index = 0; index < NUM_REGS; index++)
+ supply_register (index, (char *)state+reg_offset[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 = NS532_COMBINED_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,
+ NS532_COMBINED_STATE,
+ state,
+ &stateCnt);
+
+ if (ret != KERN_SUCCESS)
+ {
+ message ("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 0
+ if (regno != -1)
+ STORE_REGS (state, regno, 1);
+ else
+#endif
+ {
+ for (index = 0; index < NUM_REGS; index++)
+ STORE_REGS (state, index, 1);
+ }
+
+ /* Write gdb's current view of register to the thread
+ */
+ ret = thread_set_state (current_thread,
+ NS532_COMBINED_STATE,
+ state,
+ NS532_COMBINED_STATE_COUNT);
+
+ if (ret != KERN_SUCCESS)
+ message ("store_inferior_registers (set): %s",
+ mach_error_string (ret));
+
+ if (must_suspend_thread)
+ setup_thread (current_thread, 0);
+}