]> git.ipfire.org Git - thirdparty/binutils-gdb.git/blob - gdb/remote-vx68.c
import gdb-1999-07-07 post reformat
[thirdparty/binutils-gdb.git] / gdb / remote-vx68.c
1 /* 68k-dependent portions of the RPC protocol
2 used with a VxWorks target
3
4 Contributed by Wind River Systems.
5
6 This file is part of GDB.
7
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.
12
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.
17
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. */
22
23 #include <stdio.h>
24 #include "defs.h"
25
26 #include "vx-share/regPacket.h"
27 #include "frame.h"
28 #include "inferior.h"
29 #include "wait.h"
30 #include "target.h"
31 #include "gdbcore.h"
32 #include "command.h"
33 #include "symtab.h"
34 #include "symfile.h" /* for struct complaint */
35
36 #include "gdb_string.h"
37 #include <errno.h>
38 #include <signal.h>
39 #include <fcntl.h>
40 #include <sys/types.h>
41 #include <sys/time.h>
42 #include <sys/socket.h>
43
44 #ifdef _AIX /* IBM claims "void *malloc()" not char * */
45 #define malloc bogon_malloc
46 #endif
47
48 #include <rpc/rpc.h>
49
50 #ifdef _AIX
51 #undef malloc
52 #endif
53
54 #include <sys/time.h> /* UTek's <rpc/rpc.h> doesn't #incl this */
55 #include <netdb.h>
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"
61
62 /* get rid of value.h if possible */
63 #include <value.h>
64 #include <symtab.h>
65
66 /* Flag set if target has fpu */
67
68 extern int target_has_fp;
69
70 /* Generic register read/write routines in remote-vx.c. */
71
72 extern void net_read_registers ();
73 extern void net_write_registers ();
74
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. */
78
79 void
80 vx_read_register (regno)
81 int regno;
82 {
83 char mc68k_greg_packet[MC68K_GREG_PLEN];
84 char mc68k_fpreg_packet[MC68K_FPREG_PLEN];
85
86 /* Get general-purpose registers. */
87
88 net_read_registers (mc68k_greg_packet, MC68K_GREG_PLEN, PTRACE_GETREGS);
89
90 bcopy (&mc68k_greg_packet[MC68K_R_D0], registers, 16 * MC68K_GREG_SIZE);
91 bcopy (&mc68k_greg_packet[MC68K_R_SR], &registers[REGISTER_BYTE (PS_REGNUM)],
92 MC68K_GREG_SIZE);
93 bcopy (&mc68k_greg_packet[MC68K_R_PC], &registers[REGISTER_BYTE (PC_REGNUM)],
94 MC68K_GREG_SIZE);
95
96 /* Get floating-point registers, if the target system has them.
97 Otherwise, zero them. */
98
99 if (target_has_fp)
100 {
101 net_read_registers (mc68k_fpreg_packet, MC68K_FPREG_PLEN,
102 PTRACE_GETFPREGS);
103
104 bcopy (&mc68k_fpreg_packet[MC68K_R_FP0],
105 &registers[REGISTER_BYTE (FP0_REGNUM)],
106 MC68K_FPREG_SIZE * 8);
107 bcopy (&mc68k_fpreg_packet[MC68K_R_FPCR],
108 &registers[REGISTER_BYTE (FPC_REGNUM)],
109 MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8));
110 }
111 else
112 {
113 bzero (&registers[REGISTER_BYTE (FP0_REGNUM)],
114 MC68K_FPREG_SIZE * 8);
115 bzero (&registers[REGISTER_BYTE (FPC_REGNUM)],
116 MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8));
117 }
118
119 /* Mark the register cache valid. */
120
121 registers_fetched ();
122 }
123
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. */
127
128 void
129 vx_write_register (regno)
130 int regno;
131 {
132 char mc68k_greg_packet[MC68K_GREG_PLEN];
133 char mc68k_fpreg_packet[MC68K_FPREG_PLEN];
134
135 /* Store general-purpose registers. */
136
137 bcopy (registers, &mc68k_greg_packet[MC68K_R_D0], 16 * MC68K_GREG_SIZE);
138 bcopy (&registers[REGISTER_BYTE (PS_REGNUM)],
139 &mc68k_greg_packet[MC68K_R_SR], MC68K_GREG_SIZE);
140 bcopy (&registers[REGISTER_BYTE (PC_REGNUM)],
141 &mc68k_greg_packet[MC68K_R_PC], MC68K_GREG_SIZE);
142
143 net_write_registers (mc68k_greg_packet, MC68K_GREG_PLEN, PTRACE_SETREGS);
144
145 /* Store floating point registers if the target has them. */
146
147 if (target_has_fp)
148 {
149 bcopy (&registers[REGISTER_BYTE (FP0_REGNUM)],
150 &mc68k_fpreg_packet[MC68K_R_FP0],
151 MC68K_FPREG_SIZE * 8);
152 bcopy (&registers[REGISTER_BYTE (FPC_REGNUM)],
153 &mc68k_fpreg_packet[MC68K_R_FPCR],
154 MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8));
155
156 net_write_registers (mc68k_fpreg_packet, MC68K_FPREG_PLEN,
157 PTRACE_SETFPREGS);
158 }
159 }