1 /* Native-dependent code for OpenBSD/mips64.
3 Copyright 2004 Free Software Foundation, 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. */
27 #include <sys/types.h>
28 #include <sys/ptrace.h>
29 #include <machine/reg.h>
31 #include "mips-tdep.h"
32 #include "inf-ptrace.h"
34 /* Shorthand for some register numbers used below. */
35 #define MIPS_PC_REGNUM MIPS_EMBED_PC_REGNUM
36 #define MIPS_FP0_REGNUM MIPS_EMBED_FP0_REGNUM
37 #define MIPS_FSR_REGNUM MIPS_EMBED_FP0_REGNUM + 32
39 /* Supply the general-purpose registers stored in GREGS to REGCACHE. */
42 mips64obsd_supply_gregset (struct regcache *regcache, const void *gregs)
44 const char *regs = gregs;
47 for (regnum = MIPS_ZERO_REGNUM; regnum <= MIPS_PC_REGNUM; regnum++)
48 regcache_raw_supply (regcache, regnum, regs + regnum * 8);
50 for (regnum = MIPS_FP0_REGNUM; regnum <= MIPS_FSR_REGNUM; regnum++)
51 regcache_raw_supply (regcache, regnum, regs + (regnum + 2) * 8);
54 /* Collect the general-purpose registers from REGCACHE and store them
58 mips64obsd_collect_gregset (const struct regcache *regcache,
59 void *gregs, int regnum)
64 for (i = MIPS_ZERO_REGNUM; i <= MIPS_PC_REGNUM; i++)
66 if (regnum == -1 || regnum == i)
67 regcache_raw_collect (regcache, i, regs + i * 8);
70 for (i = MIPS_FP0_REGNUM; i <= MIPS_FSR_REGNUM; i++)
72 if (regnum == -1 || regnum == i)
73 regcache_raw_collect (regcache, i, regs + (i + 2) * 8);
78 /* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
82 mips64obsd_fetch_inferior_registers (int regnum)
86 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
87 (PTRACE_TYPE_ARG3) ®s, 0) == -1)
88 perror_with_name (_("Couldn't get registers"));
90 mips64obsd_supply_gregset (current_regcache, ®s);
93 /* Store register REGNUM back into the inferior. If REGNUM is -1, do
94 this for all registers. */
97 mips64obsd_store_inferior_registers (int regnum)
101 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
102 (PTRACE_TYPE_ARG3) ®s, 0) == -1)
103 perror_with_name (_("Couldn't get registers"));
105 mips64obsd_collect_gregset (current_regcache, ®s, regnum);
107 if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
108 (PTRACE_TYPE_ARG3) ®s, 0) == -1)
109 perror_with_name (_("Couldn't write registers"));
113 /* Provide a prototype to silence -Wmissing-prototypes. */
114 void _initialize_mips64obsd_nat (void);
117 _initialize_mips64obsd_nat (void)
119 struct target_ops *t;
121 t = inf_ptrace_target ();
122 t->to_fetch_registers = mips64obsd_fetch_inferior_registers;
123 t->to_store_registers = mips64obsd_store_inferior_registers;