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 */
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
47 #include <sys/time.h> /* UTek's <rpc/rpc.h> doesn't #incl this */
49 #include "vx-share/ptrace.h"
50 #include "vx-share/xdr_ptrace.h"
51 #include "vx-share/xdr_ld.h"
52 #include "vx-share/xdr_rdb.h"
53 #include "vx-share/dbgRpcLib.h"
55 /* get rid of value.h if possible */
59 /* Flag set if target has fpu */
61 extern int target_has_fp
;
63 /* 960 floating point format descriptor, from "i960-tdep.c." */
65 extern struct ext_format ext_format_i960
;
67 /* Generic register read/write routines in remote-vx.c. */
69 extern void net_read_registers ();
70 extern void net_write_registers ();
72 /* Read a register or registers from the VxWorks target.
73 REGNO is the register to read, or -1 for all; currently,
74 it is ignored. FIXME look at regno to improve efficiency. */
77 vx_read_register (int regno
)
79 char i960_greg_packet
[I960_GREG_PLEN
];
80 char i960_fpreg_packet
[I960_FPREG_PLEN
];
82 /* Get general-purpose registers. When copying values into
83 registers [], don't assume that a location in registers []
84 is properly aligned for the target data type. */
86 net_read_registers (i960_greg_packet
, I960_GREG_PLEN
, PTRACE_GETREGS
);
88 bcopy (&i960_greg_packet
[I960_R_R0
],
89 ®isters
[REGISTER_BYTE (R0_REGNUM
)], 16 * I960_GREG_SIZE
);
90 bcopy (&i960_greg_packet
[I960_R_G0
],
91 ®isters
[REGISTER_BYTE (G0_REGNUM
)], 16 * I960_GREG_SIZE
);
92 bcopy (&i960_greg_packet
[I960_R_PCW
],
93 ®isters
[REGISTER_BYTE (PCW_REGNUM
)], sizeof (int));
94 bcopy (&i960_greg_packet
[I960_R_ACW
],
95 ®isters
[REGISTER_BYTE (ACW_REGNUM
)], sizeof (int));
96 bcopy (&i960_greg_packet
[I960_R_TCW
],
97 ®isters
[REGISTER_BYTE (TCW_REGNUM
)], sizeof (int));
99 /* If the target has floating point registers, fetch them.
100 Otherwise, zero the floating point register values in
101 registers[] for good measure, even though we might not
106 net_read_registers (i960_fpreg_packet
, I960_FPREG_PLEN
,
108 bcopy (&i960_fpreg_packet
[I960_R_FP0
],
109 ®isters
[REGISTER_BYTE (FP0_REGNUM
)],
110 REGISTER_RAW_SIZE (FP0_REGNUM
) * 4);
113 bzero (®isters
[REGISTER_BYTE (FP0_REGNUM
)],
114 REGISTER_RAW_SIZE (FP0_REGNUM
) * 4);
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 i960_greg_packet
[I960_GREG_PLEN
];
129 char i960_fpreg_packet
[I960_FPREG_PLEN
];
131 /* Store floating-point registers. When copying values from
132 registers [], don't assume that a location in registers []
133 is properly aligned for the target data type. */
135 bcopy (®isters
[REGISTER_BYTE (R0_REGNUM
)],
136 &i960_greg_packet
[I960_R_R0
], 16 * I960_GREG_SIZE
);
137 bcopy (®isters
[REGISTER_BYTE (G0_REGNUM
)],
138 &i960_greg_packet
[I960_R_G0
], 16 * I960_GREG_SIZE
);
139 bcopy (®isters
[REGISTER_BYTE (PCW_REGNUM
)],
140 &i960_greg_packet
[I960_R_PCW
], sizeof (int));
141 bcopy (®isters
[REGISTER_BYTE (ACW_REGNUM
)],
142 &i960_greg_packet
[I960_R_ACW
], sizeof (int));
143 bcopy (®isters
[REGISTER_BYTE (TCW_REGNUM
)],
144 &i960_greg_packet
[I960_R_TCW
], sizeof (int));
146 net_write_registers (i960_greg_packet
, I960_GREG_PLEN
, PTRACE_SETREGS
);
148 /* Store floating point registers if the target has them. */
152 bcopy (®isters
[REGISTER_BYTE (FP0_REGNUM
)],
153 &i960_fpreg_packet
[I960_R_FP0
],
154 REGISTER_RAW_SIZE (FP0_REGNUM
) * 4);
156 net_write_registers (i960_fpreg_packet
, I960_FPREG_PLEN
,