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/* 68k-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 "target.h"
#include "gdbcore.h"
#include "command.h"
#include "symtab.h"
#include "symfile.h"
#include "regcache.h"
#include "gdb_string.h"
#include <errno.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>
#ifdef _AIX
#undef malloc
#endif
#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;
/* 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 (int regno)
{
char mc68k_greg_packet[MC68K_GREG_PLEN];
char mc68k_fpreg_packet[MC68K_FPREG_PLEN];
/* Get general-purpose registers. */
net_read_registers (mc68k_greg_packet, MC68K_GREG_PLEN, PTRACE_GETREGS);
memcpy (deprecated_registers,
&mc68k_greg_packet[MC68K_R_D0]
16 * MC68K_GREG_SIZE);
memcpy (&deprecated_registers[DEPRECATED_REGISTER_BYTE (PS_REGNUM)],
&mc68k_greg_packet[MC68K_R_SR],
MC68K_GREG_SIZE);
memcpy (&deprecated_registers[DEPRECATED_REGISTER_BYTE (PC_REGNUM)],
&mc68k_greg_packet[MC68K_R_PC],
MC68K_GREG_SIZE);
/* Get floating-point registers, if the target system has them.
Otherwise, zero them. */
if (target_has_fp)
{
net_read_registers (mc68k_fpreg_packet, MC68K_FPREG_PLEN,
PTRACE_GETFPREGS);
memcpy (&deprecated_registers[DEPRECATED_REGISTER_BYTE (FP0_REGNUM)],
&mc68k_fpreg_packet[MC68K_R_FP0],
MC68K_FPREG_SIZE * 8);
memcpy (&deprecated_registers[DEPRECATED_REGISTER_BYTE (FPC_REGNUM)],
&mc68k_fpreg_packet[MC68K_R_FPCR],
MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8));
}
else
{
memset (&deprecated_registers[DEPRECATED_REGISTER_BYTE (FP0_REGNUM)],
0, MC68K_FPREG_SIZE * 8);
memset (&deprecated_registers[DEPRECATED_REGISTER_BYTE (FPC_REGNUM)],
0, MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8));
}
/* Mark the register cache valid. */
deprecated_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 (int regno)
{
char mc68k_greg_packet[MC68K_GREG_PLEN];
char mc68k_fpreg_packet[MC68K_FPREG_PLEN];
/* Store general-purpose registers. */
memcpy (&mc68k_greg_packet[MC68K_R_D0], deprecated_registers,
16 * MC68K_GREG_SIZE);
memcpy (&mc68k_greg_packet[MC68K_R_SR],
&deprecated_registers[DEPRECATED_REGISTER_BYTE (PS_REGNUM)],
MC68K_GREG_SIZE);
memcpy (&mc68k_greg_packet[MC68K_R_PC],
&deprecated_registers[DEPRECATED_REGISTER_BYTE (PC_REGNUM)],
MC68K_GREG_SIZE);
net_write_registers (mc68k_greg_packet, MC68K_GREG_PLEN, PTRACE_SETREGS);
/* Store floating point registers if the target has them. */
if (target_has_fp)
{
memcpy (&mc68k_fpreg_packet[MC68K_R_FP0],
&deprecated_registers[DEPRECATED_REGISTER_BYTE (FP0_REGNUM)],
MC68K_FPREG_SIZE * 8);
memcpy (&mc68k_fpreg_packet[MC68K_R_FPCR],
&deprecated_registers[DEPRECATED_REGISTER_BYTE (FPC_REGNUM)],
MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8));
net_write_registers (mc68k_fpreg_packet, MC68K_FPREG_PLEN,
PTRACE_SETFPREGS);
}
}
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