1 /* Native-dependent code for HP PA-RISC BSD's.
3 Copyright (C) 2004, 2005, 2007 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., 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA. */
27 #include <sys/types.h>
28 #include <sys/ptrace.h>
29 #include <machine/reg.h>
31 #include "hppa-tdep.h"
32 #include "inf-ptrace.h"
35 hppabsd_gregset_supplies_p (int regnum)
37 return (regnum >= HPPA_R0_REGNUM && regnum <= HPPA_PCOQ_TAIL_REGNUM);
41 hppabsd_fpregset_supplies_p (int regnum)
43 return (regnum >= HPPA_FP0_REGNUM && regnum <= HPPA_FP31R_REGNUM);
46 /* Supply the general-purpose registers stored in GREGS to REGCACHE. */
49 hppabsd_supply_gregset (struct regcache *regcache, const void *gregs)
51 const char *regs = gregs;
54 for (regnum = HPPA_R1_REGNUM; regnum <= HPPA_R31_REGNUM; regnum++)
55 regcache_raw_supply (regcache, regnum, regs + regnum * 4);
57 regcache_raw_supply (regcache, HPPA_SAR_REGNUM, regs);
58 regcache_raw_supply (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 32 * 4);
59 regcache_raw_supply (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 33 * 4);
62 /* Supply the floating-point registers stored in FPREGS to REGCACHE. */
65 hppabsd_supply_fpregset (struct regcache *regcache, const void *fpregs)
67 const char *regs = fpregs;
70 for (regnum = HPPA_FP0_REGNUM; regnum <= HPPA_FP31R_REGNUM;
71 regnum += 2, regs += 8)
73 regcache_raw_supply (regcache, regnum, regs);
74 regcache_raw_supply (regcache, regnum + 1, regs + 4);
78 /* Collect the general-purpose registers from REGCACHE and store them
82 hppabsd_collect_gregset (const struct regcache *regcache,
83 void *gregs, int regnum)
88 for (i = HPPA_R1_REGNUM; i <= HPPA_R31_REGNUM; i++)
90 if (regnum == -1 || regnum == i)
91 regcache_raw_collect (regcache, i, regs + i * 4);
94 if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
95 regcache_raw_collect (regcache, HPPA_SAR_REGNUM, regs);
96 if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
97 regcache_raw_collect (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 32 * 4);
98 if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
99 regcache_raw_collect (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 33 * 4);
102 /* Collect the floating-point registers from REGCACHE and store them
106 hppabsd_collect_fpregset (struct regcache *regcache,
107 void *fpregs, int regnum)
112 for (i = HPPA_FP0_REGNUM; i <= HPPA_FP31R_REGNUM; i += 2, regs += 8)
114 if (regnum == -1 || regnum == i || regnum == i + 1)
116 regcache_raw_collect (regcache, i, regs);
117 regcache_raw_collect (regcache, i + 1, regs + 4);
123 /* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
124 for all registers (including the floating-point registers). */
127 hppabsd_fetch_registers (struct regcache *regcache, int regnum)
129 if (regnum == -1 || hppabsd_gregset_supplies_p (regnum))
133 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
134 (PTRACE_TYPE_ARG3) ®s, 0) == -1)
135 perror_with_name (_("Couldn't get registers"));
137 hppabsd_supply_gregset (regcache, ®s);
140 if (regnum == -1 || hppabsd_fpregset_supplies_p (regnum))
144 if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
145 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
146 perror_with_name (_("Couldn't get floating point status"));
148 hppabsd_supply_fpregset (regcache, &fpregs);
152 /* Store register REGNUM back into the inferior. If REGNUM is -1, do
153 this for all registers (including the floating-point registers). */
156 hppabsd_store_registers (struct regcache *regcache, int regnum)
158 if (regnum == -1 || hppabsd_gregset_supplies_p (regnum))
162 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
163 (PTRACE_TYPE_ARG3) ®s, 0) == -1)
164 perror_with_name (_("Couldn't get registers"));
166 hppabsd_collect_gregset (regcache, ®s, regnum);
168 if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
169 (PTRACE_TYPE_ARG3) ®s, 0) == -1)
170 perror_with_name (_("Couldn't write registers"));
173 if (regnum == -1 || hppabsd_fpregset_supplies_p (regnum))
177 if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
178 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
179 perror_with_name (_("Couldn't get floating point status"));
181 hppabsd_collect_fpregset (regcache, &fpregs, regnum);
183 if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
184 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
185 perror_with_name (_("Couldn't write floating point status"));
189 /* Provide a prototype to silence -Wmissing-prototypes. */
190 void _initialize_hppabsd_nat (void);
193 _initialize_hppabsd_nat (void)
195 struct target_ops *t;
197 /* Add in local overrides. */
198 t = inf_ptrace_target ();
199 t->to_fetch_registers = hppabsd_fetch_registers;
200 t->to_store_registers = hppabsd_store_registers;