1 /* i80960-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
49 #include <sys/time.h> /* UTek's <rpc/rpc.h> doesn't #incl this */
51 #include "vx-share/ptrace.h"
52 #include "vx-share/xdr_ptrace.h"
53 #include "vx-share/xdr_ld.h"
54 #include "vx-share/xdr_rdb.h"
55 #include "vx-share/dbgRpcLib.h"
57 /* get rid of value.h if possible */
61 /* Flag set if target has fpu */
63 extern int target_has_fp;
65 /* 960 floating point format descriptor, from "i960-tdep.c." */
67 extern struct ext_format ext_format_i960;
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 i960_greg_packet[I960_GREG_PLEN];
83 char i960_fpreg_packet[I960_FPREG_PLEN];
85 /* Get general-purpose registers. When copying values into
86 registers [], don't assume that a location in registers []
87 is properly aligned for the target data type. */
89 net_read_registers (i960_greg_packet, I960_GREG_PLEN, PTRACE_GETREGS);
91 bcopy (&i960_greg_packet[I960_R_R0],
92 ®isters[REGISTER_BYTE (R0_REGNUM)], 16 * I960_GREG_SIZE);
93 bcopy (&i960_greg_packet[I960_R_G0],
94 ®isters[REGISTER_BYTE (G0_REGNUM)], 16 * I960_GREG_SIZE);
95 bcopy (&i960_greg_packet[I960_R_PCW],
96 ®isters[REGISTER_BYTE (PCW_REGNUM)], sizeof (int));
97 bcopy (&i960_greg_packet[I960_R_ACW],
98 ®isters[REGISTER_BYTE (ACW_REGNUM)], sizeof (int));
99 bcopy (&i960_greg_packet[I960_R_TCW],
100 ®isters[REGISTER_BYTE (TCW_REGNUM)], sizeof (int));
102 /* If the target has floating point registers, fetch them.
103 Otherwise, zero the floating point register values in
104 registers[] for good measure, even though we might not
109 net_read_registers (i960_fpreg_packet, I960_FPREG_PLEN,
111 bcopy (&i960_fpreg_packet[I960_R_FP0],
112 ®isters[REGISTER_BYTE (FP0_REGNUM)],
113 REGISTER_RAW_SIZE (FP0_REGNUM) * 4);
116 bzero (®isters[REGISTER_BYTE (FP0_REGNUM)],
117 REGISTER_RAW_SIZE (FP0_REGNUM) * 4);
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 i960_greg_packet[I960_GREG_PLEN];
133 char i960_fpreg_packet[I960_FPREG_PLEN];
135 /* Store floating-point registers. When copying values from
136 registers [], don't assume that a location in registers []
137 is properly aligned for the target data type. */
139 bcopy (®isters[REGISTER_BYTE (R0_REGNUM)],
140 &i960_greg_packet[I960_R_R0], 16 * I960_GREG_SIZE);
141 bcopy (®isters[REGISTER_BYTE (G0_REGNUM)],
142 &i960_greg_packet[I960_R_G0], 16 * I960_GREG_SIZE);
143 bcopy (®isters[REGISTER_BYTE (PCW_REGNUM)],
144 &i960_greg_packet[I960_R_PCW], sizeof (int));
145 bcopy (®isters[REGISTER_BYTE (ACW_REGNUM)],
146 &i960_greg_packet[I960_R_ACW], sizeof (int));
147 bcopy (®isters[REGISTER_BYTE (TCW_REGNUM)],
148 &i960_greg_packet[I960_R_TCW], sizeof (int));
150 net_write_registers (i960_greg_packet, I960_GREG_PLEN, PTRACE_SETREGS);
152 /* Store floating point registers if the target has them. */
156 bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)],
157 &i960_fpreg_packet[I960_R_FP0],
158 REGISTER_RAW_SIZE (FP0_REGNUM) * 4);
160 net_write_registers (i960_fpreg_packet, I960_FPREG_PLEN,