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 */
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
53 #include <sys/time.h> /* UTek's <rpc/rpc.h> doesn't #incl this */
55 #include "vx-share/ptrace.h"
56 #include "vx-share/xdr_ptrace.h"
57 #include "vx-share/xdr_ld.h"
58 #include "vx-share/xdr_rdb.h"
59 #include "vx-share/dbgRpcLib.h"
61 /* get rid of value.h if possible */
65 /* Flag set if target has fpu */
67 extern int target_has_fp
;
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 (int regno
)
81 char mc68k_greg_packet
[MC68K_GREG_PLEN
];
82 char mc68k_fpreg_packet
[MC68K_FPREG_PLEN
];
84 /* Get general-purpose registers. */
86 net_read_registers (mc68k_greg_packet
, MC68K_GREG_PLEN
, PTRACE_GETREGS
);
88 bcopy (&mc68k_greg_packet
[MC68K_R_D0
], registers
, 16 * MC68K_GREG_SIZE
);
89 bcopy (&mc68k_greg_packet
[MC68K_R_SR
], ®isters
[REGISTER_BYTE (PS_REGNUM
)],
91 bcopy (&mc68k_greg_packet
[MC68K_R_PC
], ®isters
[REGISTER_BYTE (PC_REGNUM
)],
94 /* Get floating-point registers, if the target system has them.
95 Otherwise, zero them. */
99 net_read_registers (mc68k_fpreg_packet
, MC68K_FPREG_PLEN
,
102 bcopy (&mc68k_fpreg_packet
[MC68K_R_FP0
],
103 ®isters
[REGISTER_BYTE (FP0_REGNUM
)],
104 MC68K_FPREG_SIZE
* 8);
105 bcopy (&mc68k_fpreg_packet
[MC68K_R_FPCR
],
106 ®isters
[REGISTER_BYTE (FPC_REGNUM
)],
107 MC68K_FPREG_PLEN
- (MC68K_FPREG_SIZE
* 8));
111 bzero (®isters
[REGISTER_BYTE (FP0_REGNUM
)],
112 MC68K_FPREG_SIZE
* 8);
113 bzero (®isters
[REGISTER_BYTE (FPC_REGNUM
)],
114 MC68K_FPREG_PLEN
- (MC68K_FPREG_SIZE
* 8));
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 mc68k_greg_packet
[MC68K_GREG_PLEN
];
130 char mc68k_fpreg_packet
[MC68K_FPREG_PLEN
];
132 /* Store general-purpose registers. */
134 bcopy (registers
, &mc68k_greg_packet
[MC68K_R_D0
], 16 * MC68K_GREG_SIZE
);
135 bcopy (®isters
[REGISTER_BYTE (PS_REGNUM
)],
136 &mc68k_greg_packet
[MC68K_R_SR
], MC68K_GREG_SIZE
);
137 bcopy (®isters
[REGISTER_BYTE (PC_REGNUM
)],
138 &mc68k_greg_packet
[MC68K_R_PC
], MC68K_GREG_SIZE
);
140 net_write_registers (mc68k_greg_packet
, MC68K_GREG_PLEN
, PTRACE_SETREGS
);
142 /* Store floating point registers if the target has them. */
146 bcopy (®isters
[REGISTER_BYTE (FP0_REGNUM
)],
147 &mc68k_fpreg_packet
[MC68K_R_FP0
],
148 MC68K_FPREG_SIZE
* 8);
149 bcopy (®isters
[REGISTER_BYTE (FPC_REGNUM
)],
150 &mc68k_fpreg_packet
[MC68K_R_FPCR
],
151 MC68K_FPREG_PLEN
- (MC68K_FPREG_SIZE
* 8));
153 net_write_registers (mc68k_fpreg_packet
, MC68K_FPREG_PLEN
,
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