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"
33 #include "symfile.h" /* for struct complaint */
36 #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
48 #include <sys/time.h> /* UTek's <rpc/rpc.h> doesn't #incl this */
50 #include "vx-share/ptrace.h"
51 #include "vx-share/xdr_ptrace.h"
52 #include "vx-share/xdr_ld.h"
53 #include "vx-share/xdr_rdb.h"
54 #include "vx-share/dbgRpcLib.h"
56 /* get rid of value.h if possible */
60 /* Flag set if target has fpu */
62 extern int target_has_fp
;
64 /* 960 floating point format descriptor, from "i960-tdep.c." */
66 extern struct ext_format ext_format_i960
;
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 i960_greg_packet
[I960_GREG_PLEN
];
81 char i960_fpreg_packet
[I960_FPREG_PLEN
];
83 /* Get general-purpose registers. When copying values into
84 registers [], don't assume that a location in registers []
85 is properly aligned for the target data type. */
87 net_read_registers (i960_greg_packet
, I960_GREG_PLEN
, PTRACE_GETREGS
);
89 bcopy (&i960_greg_packet
[I960_R_R0
],
90 ®isters
[REGISTER_BYTE (R0_REGNUM
)], 16 * I960_GREG_SIZE
);
91 bcopy (&i960_greg_packet
[I960_R_G0
],
92 ®isters
[REGISTER_BYTE (G0_REGNUM
)], 16 * I960_GREG_SIZE
);
93 bcopy (&i960_greg_packet
[I960_R_PCW
],
94 ®isters
[REGISTER_BYTE (PCW_REGNUM
)], sizeof (int));
95 bcopy (&i960_greg_packet
[I960_R_ACW
],
96 ®isters
[REGISTER_BYTE (ACW_REGNUM
)], sizeof (int));
97 bcopy (&i960_greg_packet
[I960_R_TCW
],
98 ®isters
[REGISTER_BYTE (TCW_REGNUM
)], sizeof (int));
100 /* If the target has floating point registers, fetch them.
101 Otherwise, zero the floating point register values in
102 registers[] for good measure, even though we might not
107 net_read_registers (i960_fpreg_packet
, I960_FPREG_PLEN
,
109 bcopy (&i960_fpreg_packet
[I960_R_FP0
],
110 ®isters
[REGISTER_BYTE (FP0_REGNUM
)],
111 REGISTER_RAW_SIZE (FP0_REGNUM
) * 4);
114 bzero (®isters
[REGISTER_BYTE (FP0_REGNUM
)],
115 REGISTER_RAW_SIZE (FP0_REGNUM
) * 4);
117 /* Mark the register cache valid. */
119 registers_fetched ();
122 /* Store a register or registers into the VxWorks target.
123 REGNO is the register to store, or -1 for all; currently,
124 it is ignored. FIXME look at regno to improve efficiency. */
127 vx_write_register (int regno
)
129 char i960_greg_packet
[I960_GREG_PLEN
];
130 char i960_fpreg_packet
[I960_FPREG_PLEN
];
132 /* Store floating-point registers. When copying values from
133 registers [], don't assume that a location in registers []
134 is properly aligned for the target data type. */
136 bcopy (®isters
[REGISTER_BYTE (R0_REGNUM
)],
137 &i960_greg_packet
[I960_R_R0
], 16 * I960_GREG_SIZE
);
138 bcopy (®isters
[REGISTER_BYTE (G0_REGNUM
)],
139 &i960_greg_packet
[I960_R_G0
], 16 * I960_GREG_SIZE
);
140 bcopy (®isters
[REGISTER_BYTE (PCW_REGNUM
)],
141 &i960_greg_packet
[I960_R_PCW
], sizeof (int));
142 bcopy (®isters
[REGISTER_BYTE (ACW_REGNUM
)],
143 &i960_greg_packet
[I960_R_ACW
], sizeof (int));
144 bcopy (®isters
[REGISTER_BYTE (TCW_REGNUM
)],
145 &i960_greg_packet
[I960_R_TCW
], sizeof (int));
147 net_write_registers (i960_greg_packet
, I960_GREG_PLEN
, PTRACE_SETREGS
);
149 /* Store floating point registers if the target has them. */
153 bcopy (®isters
[REGISTER_BYTE (FP0_REGNUM
)],
154 &i960_fpreg_packet
[I960_R_FP0
],
155 REGISTER_RAW_SIZE (FP0_REGNUM
) * 4);
157 net_write_registers (i960_fpreg_packet
, I960_FPREG_PLEN
,