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,
21 Boston, MA 02111-1307, USA. */
26 #include "vx-share/regPacket.h"
34 #include "symfile.h" /* for struct complaint */
36 #include "gdb_string.h"
40 #include <sys/types.h>
42 #include <sys/socket.h>
44 #ifdef _AIX /* IBM claims "void *malloc()" not char * */
45 #define malloc bogon_malloc
54 #include <sys/time.h> /* UTek's <rpc/rpc.h> doesn't #incl this */
56 #include "vx-share/ptrace.h"
57 #include "vx-share/xdr_ptrace.h"
58 #include "vx-share/xdr_ld.h"
59 #include "vx-share/xdr_rdb.h"
60 #include "vx-share/dbgRpcLib.h"
62 /* get rid of value.h if possible */
66 /* Flag set if target has fpu */
68 extern int target_has_fp;
70 /* Generic register read/write routines in remote-vx.c. */
72 extern void net_read_registers ();
73 extern void net_write_registers ();
75 /* Read a register or registers from the VxWorks target.
76 REGNO is the register to read, or -1 for all; currently,
77 it is ignored. FIXME look at regno to improve efficiency. */
80 vx_read_register (regno)
83 char mc68k_greg_packet[MC68K_GREG_PLEN];
84 char mc68k_fpreg_packet[MC68K_FPREG_PLEN];
86 /* Get general-purpose registers. */
88 net_read_registers (mc68k_greg_packet, MC68K_GREG_PLEN, PTRACE_GETREGS);
90 bcopy (&mc68k_greg_packet[MC68K_R_D0], registers, 16 * MC68K_GREG_SIZE);
91 bcopy (&mc68k_greg_packet[MC68K_R_SR], ®isters[REGISTER_BYTE (PS_REGNUM)],
93 bcopy (&mc68k_greg_packet[MC68K_R_PC], ®isters[REGISTER_BYTE (PC_REGNUM)],
96 /* Get floating-point registers, if the target system has them.
97 Otherwise, zero them. */
101 net_read_registers (mc68k_fpreg_packet, MC68K_FPREG_PLEN,
104 bcopy (&mc68k_fpreg_packet[MC68K_R_FP0],
105 ®isters[REGISTER_BYTE (FP0_REGNUM)],
106 MC68K_FPREG_SIZE * 8);
107 bcopy (&mc68k_fpreg_packet[MC68K_R_FPCR],
108 ®isters[REGISTER_BYTE (FPC_REGNUM)],
109 MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8));
113 bzero (®isters[REGISTER_BYTE (FP0_REGNUM)],
114 MC68K_FPREG_SIZE * 8);
115 bzero (®isters[REGISTER_BYTE (FPC_REGNUM)],
116 MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8));
119 /* Mark the register cache valid. */
121 registers_fetched ();
124 /* Store a register or registers into the VxWorks target.
125 REGNO is the register to store, or -1 for all; currently,
126 it is ignored. FIXME look at regno to improve efficiency. */
129 vx_write_register (regno)
132 char mc68k_greg_packet[MC68K_GREG_PLEN];
133 char mc68k_fpreg_packet[MC68K_FPREG_PLEN];
135 /* Store general-purpose registers. */
137 bcopy (registers, &mc68k_greg_packet[MC68K_R_D0], 16 * MC68K_GREG_SIZE);
138 bcopy (®isters[REGISTER_BYTE (PS_REGNUM)],
139 &mc68k_greg_packet[MC68K_R_SR], MC68K_GREG_SIZE);
140 bcopy (®isters[REGISTER_BYTE (PC_REGNUM)],
141 &mc68k_greg_packet[MC68K_R_PC], MC68K_GREG_SIZE);
143 net_write_registers (mc68k_greg_packet, MC68K_GREG_PLEN, PTRACE_SETREGS);
145 /* Store floating point registers if the target has them. */
149 bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)],
150 &mc68k_fpreg_packet[MC68K_R_FP0],
151 MC68K_FPREG_SIZE * 8);
152 bcopy (®isters[REGISTER_BYTE (FPC_REGNUM)],
153 &mc68k_fpreg_packet[MC68K_R_FPCR],
154 MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8));
156 net_write_registers (mc68k_fpreg_packet, MC68K_FPREG_PLEN,