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"
33 #include "symfile.h" /* for struct complaint */
35 #include "gdb_string.h"
38 #include <sys/types.h>
40 #include <sys/socket.h>
42 #ifdef _AIX /* IBM claims "void *malloc()" not char * */
43 #define malloc bogon_malloc
52 #include <sys/time.h> /* UTek's <rpc/rpc.h> doesn't #incl this */
54 #include "vx-share/ptrace.h"
55 #include "vx-share/xdr_ptrace.h"
56 #include "vx-share/xdr_ld.h"
57 #include "vx-share/xdr_rdb.h"
58 #include "vx-share/dbgRpcLib.h"
60 /* get rid of value.h if possible */
64 /* Flag set if target has fpu */
66 extern int target_has_fp;
68 /* Generic register read/write routines in remote-vx.c. */
70 extern void net_read_registers ();
71 extern void net_write_registers ();
73 /* Read a register or registers from the VxWorks target.
74 REGNO is the register to read, or -1 for all; currently,
75 it is ignored. FIXME look at regno to improve efficiency. */
78 vx_read_register (int regno)
80 char mc68k_greg_packet[MC68K_GREG_PLEN];
81 char mc68k_fpreg_packet[MC68K_FPREG_PLEN];
83 /* Get general-purpose registers. */
85 net_read_registers (mc68k_greg_packet, MC68K_GREG_PLEN, PTRACE_GETREGS);
87 bcopy (&mc68k_greg_packet[MC68K_R_D0], registers, 16 * MC68K_GREG_SIZE);
88 bcopy (&mc68k_greg_packet[MC68K_R_SR], ®isters[REGISTER_BYTE (PS_REGNUM)],
90 bcopy (&mc68k_greg_packet[MC68K_R_PC], ®isters[REGISTER_BYTE (PC_REGNUM)],
93 /* Get floating-point registers, if the target system has them.
94 Otherwise, zero them. */
98 net_read_registers (mc68k_fpreg_packet, MC68K_FPREG_PLEN,
101 bcopy (&mc68k_fpreg_packet[MC68K_R_FP0],
102 ®isters[REGISTER_BYTE (FP0_REGNUM)],
103 MC68K_FPREG_SIZE * 8);
104 bcopy (&mc68k_fpreg_packet[MC68K_R_FPCR],
105 ®isters[REGISTER_BYTE (FPC_REGNUM)],
106 MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8));
110 bzero (®isters[REGISTER_BYTE (FP0_REGNUM)],
111 MC68K_FPREG_SIZE * 8);
112 bzero (®isters[REGISTER_BYTE (FPC_REGNUM)],
113 MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8));
116 /* Mark the register cache valid. */
118 registers_fetched ();
121 /* Store a register or registers into the VxWorks target.
122 REGNO is the register to store, or -1 for all; currently,
123 it is ignored. FIXME look at regno to improve efficiency. */
126 vx_write_register (int regno)
128 char mc68k_greg_packet[MC68K_GREG_PLEN];
129 char mc68k_fpreg_packet[MC68K_FPREG_PLEN];
131 /* Store general-purpose registers. */
133 bcopy (registers, &mc68k_greg_packet[MC68K_R_D0], 16 * MC68K_GREG_SIZE);
134 bcopy (®isters[REGISTER_BYTE (PS_REGNUM)],
135 &mc68k_greg_packet[MC68K_R_SR], MC68K_GREG_SIZE);
136 bcopy (®isters[REGISTER_BYTE (PC_REGNUM)],
137 &mc68k_greg_packet[MC68K_R_PC], MC68K_GREG_SIZE);
139 net_write_registers (mc68k_greg_packet, MC68K_GREG_PLEN, PTRACE_SETREGS);
141 /* Store floating point registers if the target has them. */
145 bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)],
146 &mc68k_fpreg_packet[MC68K_R_FP0],
147 MC68K_FPREG_SIZE * 8);
148 bcopy (®isters[REGISTER_BYTE (FPC_REGNUM)],
149 &mc68k_fpreg_packet[MC68K_R_FPCR],
150 MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8));
152 net_write_registers (mc68k_fpreg_packet, MC68K_FPREG_PLEN,