1 /* Native-dependent code for SPARC systems running NetBSD.
2 Copyright 2002 Free Software Foundation, Inc.
3 Contributed by Wasabi Systems, Inc.
5 This file is part of GDB.
7 This program 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 2 of the License, or
10 (at your option) any later version.
12 This program 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 this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
26 #include "sparcnbsd-tdep.h"
28 #include <sys/types.h>
29 #include <sys/ptrace.h>
30 #include <machine/reg.h>
32 /* NOTE: We don't bother with any of the deferred_store nonsense; it
33 makes things a lot more complicated than they need to be. */
35 /* Determine if PT_GETREGS fetches this register. */
37 getregs_supplies (int regno
)
39 return (regno
== PS_REGNUM
41 || regno
== NPC_REGNUM
43 || (regno
>= G0_REGNUM
&& regno
<= G7_REGNUM
)
44 || (regno
>= O0_REGNUM
&& regno
<= O7_REGNUM
)
45 /* stack regs (handled by sparcnbsd_supply_reg) */
46 || (regno
>= L0_REGNUM
&& regno
<= I7_REGNUM
));
49 /* Determine if PT_GETFPREGS fetches this register. */
51 getfpregs_supplies (int regno
)
53 return ((regno
>= FP0_REGNUM
&& regno
<= (FP0_REGNUM
+ 31))
54 || regno
== FPS_REGNUM
);
58 fetch_inferior_registers (int regno
)
60 /* We don't use deferred stores. */
62 internal_error (__FILE__
, __LINE__
,
63 "fetch_inferior_registers: deferred stores pending");
65 if (regno
== -1 || getregs_supplies (regno
))
69 if (ptrace (PT_GETREGS
, PIDGET (inferior_ptid
),
70 (PTRACE_ARG3_TYPE
) ®s
, 0) == -1)
71 perror_with_name ("Couldn't get registers");
73 sparcnbsd_supply_reg32 ((char *) ®s
, regno
);
78 if (regno
== -1 || getfpregs_supplies (regno
))
82 if (ptrace (PT_GETFPREGS
, PIDGET (inferior_ptid
),
83 (PTRACE_ARG3_TYPE
) &fpregs
, 0) == -1)
84 perror_with_name ("Couldn't get floating point registers");
86 sparcnbsd_supply_fpreg32 ((char *) &fpregs
, regno
);
93 store_inferior_registers (int regno
)
95 /* We don't use deferred stores. */
97 internal_error (__FILE__
, __LINE__
,
98 "store_inferior_registers: deferred stores pending");
100 if (regno
== -1 || getregs_supplies (regno
))
104 if (ptrace (PT_GETREGS
, PIDGET (inferior_ptid
),
105 (PTRACE_ARG3_TYPE
) ®s
, 0) == -1)
106 perror_with_name ("Couldn't get registers");
108 sparcnbsd_fill_reg32 ((char *) ®s
, regno
);
110 if (ptrace (PT_SETREGS
, PIDGET (inferior_ptid
),
111 (PTRACE_ARG3_TYPE
) ®s
, 0) == -1)
112 perror_with_name ("Couldn't write registers");
114 /* Deal with the stack regs. */
115 if (regno
== -1 || regno
== SP_REGNUM
116 || (regno
>= L0_REGNUM
&& regno
<= I7_REGNUM
))
118 CORE_ADDR sp
= read_register (SP_REGNUM
);
122 for (i
= L0_REGNUM
; i
<= I7_REGNUM
; i
++)
124 if (regno
== -1 || regno
== SP_REGNUM
|| regno
== i
)
126 regcache_collect (i
, buf
);
127 target_write_memory (sp
+ ((i
- L0_REGNUM
) * 4),
137 if (regno
== -1 || getfpregs_supplies (regno
))
141 if (ptrace (PT_GETFPREGS
, PIDGET (inferior_ptid
),
142 (PTRACE_ARG3_TYPE
) &fpregs
, 0) == -1)
143 perror_with_name ("Couldn't get floating point registers");
145 sparcnbsd_fill_fpreg32 ((char *) &fpregs
, regno
);
147 if (ptrace (PT_SETFPREGS
, PIDGET (inferior_ptid
),
148 (PTRACE_ARG3_TYPE
) &fpregs
, 0) == -1)
149 perror_with_name ("Couldn't write floating point registers");
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