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"
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
54 #include <sys/time.h> /* UTek's <rpc/rpc.h> doesn't #incl this */
56 #include "vx-share/ptrace.h"
57 #include "vx-share/xdr_ptrace.h"
58 #include "vx-share/xdr_ld.h"
59 #include "vx-share/xdr_rdb.h"
60 #include "vx-share/dbgRpcLib.h"
62 /* get rid of value.h if possible */
66 /* Flag set if target has fpu */
68 extern int target_has_fp
;
70 /* Generic register read/write routines in remote-vx.c. */
72 extern void net_read_registers ();
73 extern void net_write_registers ();
75 /* Read a register or registers from the VxWorks target.
76 REGNO is the register to read, or -1 for all; currently,
77 it is ignored. FIXME look at regno to improve efficiency. */
80 vx_read_register (int regno
)
82 char mc68k_greg_packet
[MC68K_GREG_PLEN
];
83 char mc68k_fpreg_packet
[MC68K_FPREG_PLEN
];
85 /* Get general-purpose registers. */
87 net_read_registers (mc68k_greg_packet
, MC68K_GREG_PLEN
, PTRACE_GETREGS
);
89 bcopy (&mc68k_greg_packet
[MC68K_R_D0
], registers
, 16 * MC68K_GREG_SIZE
);
90 bcopy (&mc68k_greg_packet
[MC68K_R_SR
], ®isters
[REGISTER_BYTE (PS_REGNUM
)],
92 bcopy (&mc68k_greg_packet
[MC68K_R_PC
], ®isters
[REGISTER_BYTE (PC_REGNUM
)],
95 /* Get floating-point registers, if the target system has them.
96 Otherwise, zero them. */
100 net_read_registers (mc68k_fpreg_packet
, MC68K_FPREG_PLEN
,
103 bcopy (&mc68k_fpreg_packet
[MC68K_R_FP0
],
104 ®isters
[REGISTER_BYTE (FP0_REGNUM
)],
105 MC68K_FPREG_SIZE
* 8);
106 bcopy (&mc68k_fpreg_packet
[MC68K_R_FPCR
],
107 ®isters
[REGISTER_BYTE (FPC_REGNUM
)],
108 MC68K_FPREG_PLEN
- (MC68K_FPREG_SIZE
* 8));
112 bzero (®isters
[REGISTER_BYTE (FP0_REGNUM
)],
113 MC68K_FPREG_SIZE
* 8);
114 bzero (®isters
[REGISTER_BYTE (FPC_REGNUM
)],
115 MC68K_FPREG_PLEN
- (MC68K_FPREG_SIZE
* 8));
118 /* Mark the register cache valid. */
120 registers_fetched ();
123 /* Store a register or registers into the VxWorks target.
124 REGNO is the register to store, or -1 for all; currently,
125 it is ignored. FIXME look at regno to improve efficiency. */
128 vx_write_register (int regno
)
130 char mc68k_greg_packet
[MC68K_GREG_PLEN
];
131 char mc68k_fpreg_packet
[MC68K_FPREG_PLEN
];
133 /* Store general-purpose registers. */
135 bcopy (registers
, &mc68k_greg_packet
[MC68K_R_D0
], 16 * MC68K_GREG_SIZE
);
136 bcopy (®isters
[REGISTER_BYTE (PS_REGNUM
)],
137 &mc68k_greg_packet
[MC68K_R_SR
], MC68K_GREG_SIZE
);
138 bcopy (®isters
[REGISTER_BYTE (PC_REGNUM
)],
139 &mc68k_greg_packet
[MC68K_R_PC
], MC68K_GREG_SIZE
);
141 net_write_registers (mc68k_greg_packet
, MC68K_GREG_PLEN
, PTRACE_SETREGS
);
143 /* Store floating point registers if the target has them. */
147 bcopy (®isters
[REGISTER_BYTE (FP0_REGNUM
)],
148 &mc68k_fpreg_packet
[MC68K_R_FP0
],
149 MC68K_FPREG_SIZE
* 8);
150 bcopy (®isters
[REGISTER_BYTE (FPC_REGNUM
)],
151 &mc68k_fpreg_packet
[MC68K_R_FPCR
],
152 MC68K_FPREG_PLEN
- (MC68K_FPREG_SIZE
* 8));
154 net_write_registers (mc68k_fpreg_packet
, MC68K_FPREG_PLEN
,
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