160 lines
4.5 KiB
C
160 lines
4.5 KiB
C
/* 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 "gdb_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>
|
|
|
|
#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 (regno)
|
|
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);
|
|
|
|
bcopy (&mc68k_greg_packet[MC68K_R_D0], registers, 16 * MC68K_GREG_SIZE);
|
|
bcopy (&mc68k_greg_packet[MC68K_R_SR], ®isters[REGISTER_BYTE (PS_REGNUM)],
|
|
MC68K_GREG_SIZE);
|
|
bcopy (&mc68k_greg_packet[MC68K_R_PC], ®isters[REGISTER_BYTE (PC_REGNUM)],
|
|
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);
|
|
|
|
bcopy (&mc68k_fpreg_packet[MC68K_R_FP0],
|
|
®isters[REGISTER_BYTE (FP0_REGNUM)],
|
|
MC68K_FPREG_SIZE * 8);
|
|
bcopy (&mc68k_fpreg_packet[MC68K_R_FPCR],
|
|
®isters[REGISTER_BYTE (FPC_REGNUM)],
|
|
MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8));
|
|
}
|
|
else
|
|
{
|
|
bzero (®isters[REGISTER_BYTE (FP0_REGNUM)],
|
|
MC68K_FPREG_SIZE * 8);
|
|
bzero (®isters[REGISTER_BYTE (FPC_REGNUM)],
|
|
MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8));
|
|
}
|
|
|
|
/* 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 mc68k_greg_packet[MC68K_GREG_PLEN];
|
|
char mc68k_fpreg_packet[MC68K_FPREG_PLEN];
|
|
|
|
/* Store general-purpose registers. */
|
|
|
|
bcopy (registers, &mc68k_greg_packet[MC68K_R_D0], 16 * MC68K_GREG_SIZE);
|
|
bcopy (®isters[REGISTER_BYTE (PS_REGNUM)],
|
|
&mc68k_greg_packet[MC68K_R_SR], MC68K_GREG_SIZE);
|
|
bcopy (®isters[REGISTER_BYTE (PC_REGNUM)],
|
|
&mc68k_greg_packet[MC68K_R_PC], 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)
|
|
{
|
|
bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)],
|
|
&mc68k_fpreg_packet[MC68K_R_FP0],
|
|
MC68K_FPREG_SIZE * 8);
|
|
bcopy (®isters[REGISTER_BYTE (FPC_REGNUM)],
|
|
&mc68k_fpreg_packet[MC68K_R_FPCR],
|
|
MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8));
|
|
|
|
net_write_registers (mc68k_fpreg_packet, MC68K_FPREG_PLEN,
|
|
PTRACE_SETFPREGS);
|
|
}
|
|
}
|