1 /* Low level MIPS interface to ptrace, for GDB when running under Unix.
2 Copyright (C) 1988, 1989, 1991 Free Software Foundation, Inc.
3 Contributed by Alessandro Forin(af@cs.cmu.edu) at CMU
4 and by Per Bothner(bothner@cs.wisc.edu) at U.Wisconsin.
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
26 #include <mips/inst.h>
36 #include <sys/types.h>
39 #include <sys/param.h>
42 #include <sys/ioctl.h>
43 /* #include <fcntl.h> Can we live without this? */
47 #include <sys/user.h> /* After a.out.h */
51 /* For now we stub this out; sgi format is super-hairy (and completely
52 different in the new release) */
56 fetch_core_registers ()
62 fetch_inferior_registers ()
67 store_inferior_registers (regno
)
76 /* Get all registers from the inferior */
79 fetch_inferior_registers ()
82 register unsigned int regaddr
;
83 char buf
[MAX_REGISTER_RAW_SIZE
];
88 for (regno
= 1; regno
< NUM_REGS
; regno
++)
90 regaddr
= register_addr (regno
, 1);
91 for (i
= 0; i
< REGISTER_RAW_SIZE (regno
); i
+= sizeof (int))
93 *(int *) &buf
[i
] = ptrace (3, inferior_pid
, regaddr
, 0);
94 regaddr
+= sizeof (int);
96 supply_register (regno
, buf
);
100 /* Store our register values back into the inferior.
101 If REGNO is -1, do this for all registers.
102 Otherwise, REGNO specifies which register (so we can save time). */
105 store_inferior_registers (regno
)
108 register unsigned int regaddr
;
116 regaddr
= register_addr (regno
, 1);
118 ptrace (6, inferior_pid
, regaddr
, read_register (regno
));
121 sprintf (buf
, "writing register number %d", regno
);
122 perror_with_name (buf
);
127 for (regno
= 1; regno
< NUM_REGS
; regno
++)
129 if (regno
== 32 || regno
== 35 || regno
== 36
130 || regno
== 71 || regno
== FP_REGNUM
)
132 regaddr
= register_addr (regno
, 1);
134 ptrace (6, inferior_pid
, regaddr
, read_register (regno
));
137 sprintf (buf
, "writing all regs, number %d", regno
);
138 perror_with_name (buf
);
148 fetch_core_registers ()
153 for (regno
= 1; regno
< NUM_REGS
; regno
++) {
154 char buf
[MAX_REGISTER_RAW_SIZE
];
156 val
= bfd_seek (core_bfd
, register_addr (regno
, 0));
157 if (val
< 0 || (val
= bfd_read (core_bfd
, buf
, sizeof buf
)) < 0) {
159 strcpy (buffer
, "Reading register ");
160 strcat (buffer
, reg_names
[regno
]);
162 perror_with_name (buffer
);
164 supply_register (regno
, buf
);
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