1 /* Native-dependent code for SPARC systems running NetBSD.
2 Copyright 2002, 2003 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 "sparc-tdep.h"
27 #include "sparcnbsd-tdep.h"
29 #include <sys/types.h>
30 #include <sys/ptrace.h>
31 #include <machine/reg.h>
33 /* NOTE: We don't bother with any of the deferred_store nonsense; it
34 makes things a lot more complicated than they need to be. */
36 /* Determine if PT_GETREGS fetches this register. */
38 getregs_supplies (int regno)
40 return (regno == PS_REGNUM
42 || regno == NPC_REGNUM
44 || (regno >= G0_REGNUM && regno <= G7_REGNUM)
45 || (regno >= O0_REGNUM && regno <= O7_REGNUM)
46 /* stack regs (handled by sparcnbsd_supply_reg) */
47 || (regno >= L0_REGNUM && regno <= I7_REGNUM));
50 /* Determine if PT_GETFPREGS fetches this register. */
52 getfpregs_supplies (int regno)
54 return ((regno >= FP0_REGNUM && regno <= (FP0_REGNUM + 31))
55 || regno == FPS_REGNUM);
59 fetch_inferior_registers (int regno)
61 /* We don't use deferred stores. */
63 internal_error (__FILE__, __LINE__,
64 "fetch_inferior_registers: deferred stores pending");
66 if (regno == -1 || getregs_supplies (regno))
70 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
71 (PTRACE_ARG3_TYPE) ®s, 0) == -1)
72 perror_with_name ("Couldn't get registers");
74 sparcnbsd_supply_reg32 ((char *) ®s, regno);
79 if (regno == -1 || getfpregs_supplies (regno))
83 if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
84 (PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
85 perror_with_name ("Couldn't get floating point registers");
87 sparcnbsd_supply_fpreg32 ((char *) &fpregs, regno);
94 store_inferior_registers (int regno)
96 /* We don't use deferred stores. */
98 internal_error (__FILE__, __LINE__,
99 "store_inferior_registers: deferred stores pending");
101 if (regno == -1 || getregs_supplies (regno))
105 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
106 (PTRACE_ARG3_TYPE) ®s, 0) == -1)
107 perror_with_name ("Couldn't get registers");
109 sparcnbsd_fill_reg32 ((char *) ®s, regno);
111 if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
112 (PTRACE_ARG3_TYPE) ®s, 0) == -1)
113 perror_with_name ("Couldn't write registers");
115 /* Deal with the stack regs. */
116 if (regno == -1 || regno == SP_REGNUM
117 || (regno >= L0_REGNUM && regno <= I7_REGNUM))
119 CORE_ADDR sp = read_register (SP_REGNUM);
123 for (i = L0_REGNUM; i <= I7_REGNUM; i++)
125 if (regno == -1 || regno == SP_REGNUM || regno == i)
127 regcache_collect (i, buf);
128 target_write_memory (sp + ((i - L0_REGNUM) * 4),
138 if (regno == -1 || getfpregs_supplies (regno))
142 if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
143 (PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
144 perror_with_name ("Couldn't get floating point registers");
146 sparcnbsd_fill_fpreg32 ((char *) &fpregs, regno);
148 if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
149 (PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
150 perror_with_name ("Couldn't write floating point registers");