164 lines
5.0 KiB
C
164 lines
5.0 KiB
C
/* i80960-dependent portions of the RPC protocol
|
|
used with a VxWorks target
|
|
|
|
Contributed by Wind River Systems.
|
|
|
|
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 <stdio.h>
|
|
#include "defs.h"
|
|
|
|
#include "vx-share/regPacket.h"
|
|
#include "frame.h"
|
|
#include "inferior.h"
|
|
#include "wait.h"
|
|
#include "target.h"
|
|
#include "gdbcore.h"
|
|
#include "command.h"
|
|
#include "symtab.h"
|
|
#include "symfile.h" /* for struct complaint */
|
|
|
|
#include "gdb_string.h"
|
|
#include <errno.h>
|
|
#include <signal.h>
|
|
#include <fcntl.h>
|
|
#include <sys/types.h>
|
|
#include <sys/time.h>
|
|
#include <sys/socket.h>
|
|
|
|
#ifdef _AIX /* IBM claims "void *malloc()" not char * */
|
|
#define malloc bogon_malloc
|
|
#endif
|
|
|
|
#include <rpc/rpc.h>
|
|
#include <sys/time.h> /* UTek's <rpc/rpc.h> doesn't #incl this */
|
|
#include <netdb.h>
|
|
#include "vx-share/ptrace.h"
|
|
#include "vx-share/xdr_ptrace.h"
|
|
#include "vx-share/xdr_ld.h"
|
|
#include "vx-share/xdr_rdb.h"
|
|
#include "vx-share/dbgRpcLib.h"
|
|
|
|
/* get rid of value.h if possible */
|
|
#include <value.h>
|
|
#include <symtab.h>
|
|
|
|
/* Flag set if target has fpu */
|
|
|
|
extern int target_has_fp;
|
|
|
|
/* 960 floating point format descriptor, from "i960-tdep.c." */
|
|
|
|
extern struct ext_format ext_format_i960;
|
|
|
|
/* Generic register read/write routines in remote-vx.c. */
|
|
|
|
extern void net_read_registers ();
|
|
extern void net_write_registers ();
|
|
|
|
/* Read a register or registers from the VxWorks target.
|
|
REGNO is the register to read, or -1 for all; currently,
|
|
it is ignored. FIXME look at regno to improve efficiency. */
|
|
|
|
void
|
|
vx_read_register (regno)
|
|
int regno;
|
|
{
|
|
char i960_greg_packet[I960_GREG_PLEN];
|
|
char i960_fpreg_packet[I960_FPREG_PLEN];
|
|
|
|
/* Get general-purpose registers. When copying values into
|
|
registers [], don't assume that a location in registers []
|
|
is properly aligned for the target data type. */
|
|
|
|
net_read_registers (i960_greg_packet, I960_GREG_PLEN, PTRACE_GETREGS);
|
|
|
|
bcopy (&i960_greg_packet[I960_R_R0],
|
|
®isters[REGISTER_BYTE (R0_REGNUM)], 16 * I960_GREG_SIZE);
|
|
bcopy (&i960_greg_packet[I960_R_G0],
|
|
®isters[REGISTER_BYTE (G0_REGNUM)], 16 * I960_GREG_SIZE);
|
|
bcopy (&i960_greg_packet[I960_R_PCW],
|
|
®isters[REGISTER_BYTE (PCW_REGNUM)], sizeof (int));
|
|
bcopy (&i960_greg_packet[I960_R_ACW],
|
|
®isters[REGISTER_BYTE (ACW_REGNUM)], sizeof (int));
|
|
bcopy (&i960_greg_packet[I960_R_TCW],
|
|
®isters[REGISTER_BYTE (TCW_REGNUM)], sizeof (int));
|
|
|
|
/* If the target has floating point registers, fetch them.
|
|
Otherwise, zero the floating point register values in
|
|
registers[] for good measure, even though we might not
|
|
need to. */
|
|
|
|
if (target_has_fp)
|
|
{
|
|
net_read_registers (i960_fpreg_packet, I960_FPREG_PLEN,
|
|
PTRACE_GETFPREGS);
|
|
bcopy (&i960_fpreg_packet[I960_R_FP0],
|
|
®isters[REGISTER_BYTE (FP0_REGNUM)],
|
|
REGISTER_RAW_SIZE (FP0_REGNUM) * 4);
|
|
}
|
|
else
|
|
bzero (®isters[REGISTER_BYTE (FP0_REGNUM)],
|
|
REGISTER_RAW_SIZE (FP0_REGNUM) * 4);
|
|
|
|
/* Mark the register cache valid. */
|
|
|
|
registers_fetched ();
|
|
}
|
|
|
|
/* Store a register or registers into the VxWorks target.
|
|
REGNO is the register to store, or -1 for all; currently,
|
|
it is ignored. FIXME look at regno to improve efficiency. */
|
|
|
|
void
|
|
vx_write_register (regno)
|
|
int regno;
|
|
{
|
|
char i960_greg_packet[I960_GREG_PLEN];
|
|
char i960_fpreg_packet[I960_FPREG_PLEN];
|
|
|
|
/* Store floating-point registers. When copying values from
|
|
registers [], don't assume that a location in registers []
|
|
is properly aligned for the target data type. */
|
|
|
|
bcopy (®isters[REGISTER_BYTE (R0_REGNUM)],
|
|
&i960_greg_packet[I960_R_R0], 16 * I960_GREG_SIZE);
|
|
bcopy (®isters[REGISTER_BYTE (G0_REGNUM)],
|
|
&i960_greg_packet[I960_R_G0], 16 * I960_GREG_SIZE);
|
|
bcopy (®isters[REGISTER_BYTE (PCW_REGNUM)],
|
|
&i960_greg_packet[I960_R_PCW], sizeof (int));
|
|
bcopy (®isters[REGISTER_BYTE (ACW_REGNUM)],
|
|
&i960_greg_packet[I960_R_ACW], sizeof (int));
|
|
bcopy (®isters[REGISTER_BYTE (TCW_REGNUM)],
|
|
&i960_greg_packet[I960_R_TCW], sizeof (int));
|
|
|
|
net_write_registers (i960_greg_packet, I960_GREG_PLEN, PTRACE_SETREGS);
|
|
|
|
/* Store floating point registers if the target has them. */
|
|
|
|
if (target_has_fp)
|
|
{
|
|
bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)],
|
|
&i960_fpreg_packet[I960_R_FP0],
|
|
REGISTER_RAW_SIZE (FP0_REGNUM) * 4);
|
|
|
|
net_write_registers (i960_fpreg_packet, I960_FPREG_PLEN,
|
|
PTRACE_SETFPREGS);
|
|
}
|
|
}
|
|
|