159 lines
4.4 KiB
C
159 lines
4.4 KiB
C
/* 68k-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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 "gdb_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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#ifdef _AIX
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#undef malloc
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#endif
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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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/* 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 mc68k_greg_packet[MC68K_GREG_PLEN];
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char mc68k_fpreg_packet[MC68K_FPREG_PLEN];
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/* Get general-purpose registers. */
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net_read_registers (mc68k_greg_packet, MC68K_GREG_PLEN, PTRACE_GETREGS);
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bcopy (&mc68k_greg_packet[MC68K_R_D0], registers, 16 * MC68K_GREG_SIZE);
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bcopy (&mc68k_greg_packet[MC68K_R_SR], ®isters[REGISTER_BYTE (PS_REGNUM)],
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MC68K_GREG_SIZE);
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bcopy (&mc68k_greg_packet[MC68K_R_PC], ®isters[REGISTER_BYTE (PC_REGNUM)],
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MC68K_GREG_SIZE);
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/* Get floating-point registers, if the target system has them.
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Otherwise, zero them. */
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if (target_has_fp)
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{
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net_read_registers (mc68k_fpreg_packet, MC68K_FPREG_PLEN,
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PTRACE_GETFPREGS);
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bcopy (&mc68k_fpreg_packet[MC68K_R_FP0],
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®isters[REGISTER_BYTE (FP0_REGNUM)],
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MC68K_FPREG_SIZE * 8);
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bcopy (&mc68k_fpreg_packet[MC68K_R_FPCR],
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®isters[REGISTER_BYTE (FPC_REGNUM)],
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MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8));
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}
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else
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{
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bzero (®isters[REGISTER_BYTE (FP0_REGNUM)],
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MC68K_FPREG_SIZE * 8);
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bzero (®isters[REGISTER_BYTE (FPC_REGNUM)],
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MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8));
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}
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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 mc68k_greg_packet[MC68K_GREG_PLEN];
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char mc68k_fpreg_packet[MC68K_FPREG_PLEN];
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/* Store general-purpose registers. */
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bcopy (registers, &mc68k_greg_packet[MC68K_R_D0], 16 * MC68K_GREG_SIZE);
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bcopy (®isters[REGISTER_BYTE (PS_REGNUM)],
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&mc68k_greg_packet[MC68K_R_SR], MC68K_GREG_SIZE);
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bcopy (®isters[REGISTER_BYTE (PC_REGNUM)],
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&mc68k_greg_packet[MC68K_R_PC], MC68K_GREG_SIZE);
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net_write_registers (mc68k_greg_packet, MC68K_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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&mc68k_fpreg_packet[MC68K_R_FP0],
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MC68K_FPREG_SIZE * 8);
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bcopy (®isters[REGISTER_BYTE (FPC_REGNUM)],
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&mc68k_fpreg_packet[MC68K_R_FPCR],
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MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8));
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net_write_registers (mc68k_fpreg_packet, MC68K_FPREG_PLEN,
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PTRACE_SETFPREGS);
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}
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}
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