1 /* 68k-dependent portions of the RPC protocol
2 used with a VxWorks target
4 Contributed by Wind River Systems.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
25 #include "vx-share/regPacket.h"
33 #include "symfile.h" /* for struct complaint */
35 #include "gdb_string.h"
39 #include <sys/types.h>
41 #include <sys/socket.h>
43 #ifdef _AIX /* IBM claims "void *malloc()" not char * */
44 #define malloc bogon_malloc
53 #include <sys/time.h> /* UTek's <rpc/rpc.h> doesn't #incl this */
55 #include "vx-share/ptrace.h"
56 #include "vx-share/xdr_ptrace.h"
57 #include "vx-share/xdr_ld.h"
58 #include "vx-share/xdr_rdb.h"
59 #include "vx-share/dbgRpcLib.h"
61 /* get rid of value.h if possible */
65 /* Flag set if target has fpu */
67 extern int target_has_fp;
69 /* Generic register read/write routines in remote-vx.c. */
71 extern void net_read_registers ();
72 extern void net_write_registers ();
74 /* Read a register or registers from the VxWorks target.
75 REGNO is the register to read, or -1 for all; currently,
76 it is ignored. FIXME look at regno to improve efficiency. */
79 vx_read_register (regno)
82 char mc68k_greg_packet[MC68K_GREG_PLEN];
83 char mc68k_fpreg_packet[MC68K_FPREG_PLEN];
85 /* Get general-purpose registers. */
87 net_read_registers (mc68k_greg_packet, MC68K_GREG_PLEN, PTRACE_GETREGS);
89 bcopy (&mc68k_greg_packet[MC68K_R_D0], registers, 16 * MC68K_GREG_SIZE);
90 bcopy (&mc68k_greg_packet[MC68K_R_SR], ®isters[REGISTER_BYTE (PS_REGNUM)],
92 bcopy (&mc68k_greg_packet[MC68K_R_PC], ®isters[REGISTER_BYTE (PC_REGNUM)],
95 /* Get floating-point registers, if the target system has them.
96 Otherwise, zero them. */
100 net_read_registers (mc68k_fpreg_packet, MC68K_FPREG_PLEN,
103 bcopy (&mc68k_fpreg_packet[MC68K_R_FP0],
104 ®isters[REGISTER_BYTE (FP0_REGNUM)],
105 MC68K_FPREG_SIZE * 8);
106 bcopy (&mc68k_fpreg_packet[MC68K_R_FPCR],
107 ®isters[REGISTER_BYTE (FPC_REGNUM)],
108 MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8));
112 bzero (®isters[REGISTER_BYTE (FP0_REGNUM)],
113 MC68K_FPREG_SIZE * 8);
114 bzero (®isters[REGISTER_BYTE (FPC_REGNUM)],
115 MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8));
118 /* Mark the register cache valid. */
120 registers_fetched ();
123 /* Store a register or registers into the VxWorks target.
124 REGNO is the register to store, or -1 for all; currently,
125 it is ignored. FIXME look at regno to improve efficiency. */
128 vx_write_register (regno)
131 char mc68k_greg_packet[MC68K_GREG_PLEN];
132 char mc68k_fpreg_packet[MC68K_FPREG_PLEN];
134 /* Store general-purpose registers. */
136 bcopy (registers, &mc68k_greg_packet[MC68K_R_D0], 16 * MC68K_GREG_SIZE);
137 bcopy (®isters[REGISTER_BYTE (PS_REGNUM)],
138 &mc68k_greg_packet[MC68K_R_SR], MC68K_GREG_SIZE);
139 bcopy (®isters[REGISTER_BYTE (PC_REGNUM)],
140 &mc68k_greg_packet[MC68K_R_PC], MC68K_GREG_SIZE);
142 net_write_registers (mc68k_greg_packet, MC68K_GREG_PLEN, PTRACE_SETREGS);
144 /* Store floating point registers if the target has them. */
148 bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)],
149 &mc68k_fpreg_packet[MC68K_R_FP0],
150 MC68K_FPREG_SIZE * 8);
151 bcopy (®isters[REGISTER_BYTE (FPC_REGNUM)],
152 &mc68k_fpreg_packet[MC68K_R_FPCR],
153 MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8));
155 net_write_registers (mc68k_fpreg_packet, MC68K_FPREG_PLEN,