1 /* Sun-3 Machine-dependent code which would otherwise be in inflow.c and core.c,
2 for GDB, the GNU debugger.
3 Copyright (C) 1986, 1987, 1989 Free Software Foundation, Inc.
5 This file is part of GDB.
7 GDB is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 1, or (at your option)
12 GDB is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GDB; see the file COPYING. If not, write to
19 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
26 #include <sys/ptrace.h>
27 #define KERNEL /* To get floating point reg definitions */
28 #include <machine/reg.h>
35 fetch_inferior_registers ()
37 struct regs inferior_registers
;
39 struct fp_status inferior_fp_registers
;
41 extern char registers
[];
45 ptrace (PTRACE_GETREGS
, inferior_pid
, &inferior_registers
);
47 ptrace (PTRACE_GETFPREGS
, inferior_pid
, &inferior_fp_registers
);
50 bcopy (&inferior_registers
, registers
, 16 * 4);
52 bcopy (&inferior_fp_registers
, ®isters
[REGISTER_BYTE (FP0_REGNUM
)],
53 sizeof inferior_fp_registers
.fps_regs
);
55 *(int *)®isters
[REGISTER_BYTE (PS_REGNUM
)] = inferior_registers
.r_ps
;
56 *(int *)®isters
[REGISTER_BYTE (PC_REGNUM
)] = inferior_registers
.r_pc
;
58 bcopy (&inferior_fp_registers
.fps_control
,
59 ®isters
[REGISTER_BYTE (FPC_REGNUM
)],
60 sizeof inferior_fp_registers
- sizeof inferior_fp_registers
.fps_regs
);
64 /* Store our register values back into the inferior.
65 If REGNO is -1, do this for all registers.
66 Otherwise, REGNO specifies which register (so we can save time). */
68 store_inferior_registers (regno
)
71 struct regs inferior_registers
;
73 struct fp_status inferior_fp_registers
;
75 extern char registers
[];
77 bcopy (registers
, &inferior_registers
, 16 * 4);
79 bcopy (®isters
[REGISTER_BYTE (FP0_REGNUM
)], &inferior_fp_registers
,
80 sizeof inferior_fp_registers
.fps_regs
);
82 inferior_registers
.r_ps
= *(int *)®isters
[REGISTER_BYTE (PS_REGNUM
)];
83 inferior_registers
.r_pc
= *(int *)®isters
[REGISTER_BYTE (PC_REGNUM
)];
86 bcopy (®isters
[REGISTER_BYTE (FPC_REGNUM
)],
87 &inferior_fp_registers
.fps_control
,
88 sizeof inferior_fp_registers
- sizeof inferior_fp_registers
.fps_regs
);
91 ptrace (PTRACE_SETREGS
, inferior_pid
, &inferior_registers
);
93 ptrace (PTRACE_SETFPREGS
, inferior_pid
, &inferior_fp_registers
);
97 /* Machine-dependent code for pulling registers out of a Sun-3 core file. */
100 fetch_core_registers (core_reg_sect
, core_reg_size
, which
)
102 unsigned core_reg_size
;
105 extern char registers
[];
106 struct regs
*regs
= (struct regs
*) core_reg_sect
;
109 if (core_reg_size
< sizeof (struct regs
))
110 error ("Can't find registers in core file");
112 bcopy ((char *)regs
, registers
, 16 * 4);
113 supply_register (PS_REGNUM
, ®s
->r_ps
);
114 supply_register (PC_REGNUM
, ®s
->r_pc
);
116 } else if (which
== 2) {
118 #define fpustruct ((struct fpu *) core_reg_sect)
120 if (core_reg_size
>= sizeof (struct fpu
))
122 bcopy (fpustruct
->f_fpstatus
.fps_regs
,
123 ®isters
[REGISTER_BYTE (FP0_REGNUM
)],
124 sizeof fpustruct
->f_fpstatus
.fps_regs
);
125 bcopy (&fpustruct
->f_fpstatus
.fps_control
,
126 ®isters
[REGISTER_BYTE (FPC_REGNUM
)],
127 sizeof fpustruct
->f_fpstatus
-
128 sizeof fpustruct
->f_fpstatus
.fps_regs
);
131 fprintf (stderr
, "Couldn't read float regs from core file\n");