164 lines
5.0 KiB
C
164 lines
5.0 KiB
C
/* i80960-dependent portions of the RPC protocol
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used with a VxWorks target
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Contributed by Wind River Systems.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <stdio.h>
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#include "defs.h"
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#include "vx-share/regPacket.h"
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#include "frame.h"
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#include "inferior.h"
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#include "wait.h"
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#include "target.h"
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#include "gdbcore.h"
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#include "command.h"
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#include "symtab.h"
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#include "symfile.h" /* for struct complaint */
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#include <string.h>
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#include <errno.h>
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#include <signal.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/socket.h>
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#ifdef _AIX /* IBM claims "void *malloc()" not char * */
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#define malloc bogon_malloc
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#endif
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#include <rpc/rpc.h>
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#include <sys/time.h> /* UTek's <rpc/rpc.h> doesn't #incl this */
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#include <netdb.h>
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#include "vx-share/ptrace.h"
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#include "vx-share/xdr_ptrace.h"
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#include "vx-share/xdr_ld.h"
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#include "vx-share/xdr_rdb.h"
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#include "vx-share/dbgRpcLib.h"
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/* get rid of value.h if possible */
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#include <value.h>
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#include <symtab.h>
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/* Flag set if target has fpu */
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extern int target_has_fp;
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/* 960 floating point format descriptor, from "i960-tdep.c." */
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extern struct ext_format ext_format_i960;
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/* Generic register read/write routines in remote-vx.c. */
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extern void net_read_registers ();
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extern void net_write_registers ();
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/* Read a register or registers from the VxWorks target.
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REGNO is the register to read, or -1 for all; currently,
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it is ignored. FIXME look at regno to improve efficiency. */
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void
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vx_read_register (regno)
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int regno;
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{
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char i960_greg_packet[I960_GREG_PLEN];
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char i960_fpreg_packet[I960_FPREG_PLEN];
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/* Get general-purpose registers. When copying values into
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registers [], don't assume that a location in registers []
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is properly aligned for the target data type. */
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net_read_registers (i960_greg_packet, I960_GREG_PLEN, PTRACE_GETREGS);
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bcopy (&i960_greg_packet[I960_R_R0],
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®isters[REGISTER_BYTE (R0_REGNUM)], 16 * I960_GREG_SIZE);
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bcopy (&i960_greg_packet[I960_R_G0],
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®isters[REGISTER_BYTE (G0_REGNUM)], 16 * I960_GREG_SIZE);
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bcopy (&i960_greg_packet[I960_R_PCW],
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®isters[REGISTER_BYTE (PCW_REGNUM)], sizeof (int));
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bcopy (&i960_greg_packet[I960_R_ACW],
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®isters[REGISTER_BYTE (ACW_REGNUM)], sizeof (int));
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bcopy (&i960_greg_packet[I960_R_TCW],
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®isters[REGISTER_BYTE (TCW_REGNUM)], sizeof (int));
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/* If the target has floating point registers, fetch them.
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Otherwise, zero the floating point register values in
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registers[] for good measure, even though we might not
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need to. */
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if (target_has_fp)
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{
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net_read_registers (i960_fpreg_packet, I960_FPREG_PLEN,
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PTRACE_GETFPREGS);
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bcopy (&i960_fpreg_packet[I960_R_FP0],
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®isters[REGISTER_BYTE (FP0_REGNUM)],
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REGISTER_RAW_SIZE (FP0_REGNUM) * 4);
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}
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else
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bzero (®isters[REGISTER_BYTE (FP0_REGNUM)],
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REGISTER_RAW_SIZE (FP0_REGNUM) * 4);
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/* Mark the register cache valid. */
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registers_fetched ();
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}
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/* Store a register or registers into the VxWorks target.
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REGNO is the register to store, or -1 for all; currently,
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it is ignored. FIXME look at regno to improve efficiency. */
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void
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vx_write_register (regno)
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int regno;
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{
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char i960_greg_packet[I960_GREG_PLEN];
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char i960_fpreg_packet[I960_FPREG_PLEN];
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/* Store floating-point registers. When copying values from
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registers [], don't assume that a location in registers []
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is properly aligned for the target data type. */
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bcopy (®isters[REGISTER_BYTE (R0_REGNUM)],
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&i960_greg_packet[I960_R_R0], 16 * I960_GREG_SIZE);
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bcopy (®isters[REGISTER_BYTE (G0_REGNUM)],
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&i960_greg_packet[I960_R_G0], 16 * I960_GREG_SIZE);
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bcopy (®isters[REGISTER_BYTE (PCW_REGNUM)],
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&i960_greg_packet[I960_R_PCW], sizeof (int));
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bcopy (®isters[REGISTER_BYTE (ACW_REGNUM)],
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&i960_greg_packet[I960_R_ACW], sizeof (int));
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bcopy (®isters[REGISTER_BYTE (TCW_REGNUM)],
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&i960_greg_packet[I960_R_TCW], sizeof (int));
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net_write_registers (i960_greg_packet, I960_GREG_PLEN, PTRACE_SETREGS);
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/* Store floating point registers if the target has them. */
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if (target_has_fp)
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{
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bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)],
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&i960_fpreg_packet[I960_R_FP0],
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REGISTER_RAW_SIZE (FP0_REGNUM) * 4);
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net_write_registers (i960_fpreg_packet, I960_FPREG_PLEN,
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PTRACE_SETFPREGS);
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}
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}
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