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");