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This commit is contained in:
Stan Shebs 1999-04-16 01:35:26 +00:00
parent cd946cff9e
commit c906108c21
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163
gdb/remote-vx960.c Normal file
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/* 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],
&registers[REGISTER_BYTE (R0_REGNUM)], 16 * I960_GREG_SIZE);
bcopy (&i960_greg_packet[I960_R_G0],
&registers[REGISTER_BYTE (G0_REGNUM)], 16 * I960_GREG_SIZE);
bcopy (&i960_greg_packet[I960_R_PCW],
&registers[REGISTER_BYTE (PCW_REGNUM)], sizeof (int));
bcopy (&i960_greg_packet[I960_R_ACW],
&registers[REGISTER_BYTE (ACW_REGNUM)], sizeof (int));
bcopy (&i960_greg_packet[I960_R_TCW],
&registers[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],
&registers[REGISTER_BYTE (FP0_REGNUM)],
REGISTER_RAW_SIZE (FP0_REGNUM) * 4);
}
else
bzero (&registers[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 (&registers[REGISTER_BYTE (R0_REGNUM)],
&i960_greg_packet[I960_R_R0], 16 * I960_GREG_SIZE);
bcopy (&registers[REGISTER_BYTE (G0_REGNUM)],
&i960_greg_packet[I960_R_G0], 16 * I960_GREG_SIZE);
bcopy (&registers[REGISTER_BYTE (PCW_REGNUM)],
&i960_greg_packet[I960_R_PCW], sizeof (int));
bcopy (&registers[REGISTER_BYTE (ACW_REGNUM)],
&i960_greg_packet[I960_R_ACW], sizeof (int));
bcopy (&registers[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 (&registers[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);
}
}