1 /* Native-dependent code for HP PA-RISC BSD's.
3 Copyright (C) 2004, 2005, 2007, 2008, 2009, 2010
4 Free Software Foundation, Inc.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
26 #include <sys/types.h>
27 #include <sys/ptrace.h>
28 #include <machine/reg.h>
30 #include "hppa-tdep.h"
31 #include "inf-ptrace.h"
34 hppabsd_gregset_supplies_p (int regnum)
36 return (regnum >= HPPA_R0_REGNUM && regnum <= HPPA_PCOQ_TAIL_REGNUM);
40 hppabsd_fpregset_supplies_p (int regnum)
42 return (regnum >= HPPA_FP0_REGNUM && regnum <= HPPA_FP31R_REGNUM);
45 /* Supply the general-purpose registers stored in GREGS to REGCACHE. */
48 hppabsd_supply_gregset (struct regcache *regcache, const void *gregs)
50 const char *regs = gregs;
53 for (regnum = HPPA_R1_REGNUM; regnum <= HPPA_R31_REGNUM; regnum++)
54 regcache_raw_supply (regcache, regnum, regs + regnum * 4);
56 regcache_raw_supply (regcache, HPPA_SAR_REGNUM, regs);
57 regcache_raw_supply (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 32 * 4);
58 regcache_raw_supply (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 33 * 4);
61 /* Supply the floating-point registers stored in FPREGS to REGCACHE. */
64 hppabsd_supply_fpregset (struct regcache *regcache, const void *fpregs)
66 const char *regs = fpregs;
69 for (regnum = HPPA_FP0_REGNUM; regnum <= HPPA_FP31R_REGNUM;
70 regnum += 2, regs += 8)
72 regcache_raw_supply (regcache, regnum, regs);
73 regcache_raw_supply (regcache, regnum + 1, regs + 4);
77 /* Collect the general-purpose registers from REGCACHE and store them
81 hppabsd_collect_gregset (const struct regcache *regcache,
82 void *gregs, int regnum)
87 for (i = HPPA_R1_REGNUM; i <= HPPA_R31_REGNUM; i++)
89 if (regnum == -1 || regnum == i)
90 regcache_raw_collect (regcache, i, regs + i * 4);
93 if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
94 regcache_raw_collect (regcache, HPPA_SAR_REGNUM, regs);
95 if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
96 regcache_raw_collect (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 32 * 4);
97 if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
98 regcache_raw_collect (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 33 * 4);
101 /* Collect the floating-point registers from REGCACHE and store them
105 hppabsd_collect_fpregset (struct regcache *regcache,
106 void *fpregs, int regnum)
111 for (i = HPPA_FP0_REGNUM; i <= HPPA_FP31R_REGNUM; i += 2, regs += 8)
113 if (regnum == -1 || regnum == i || regnum == i + 1)
115 regcache_raw_collect (regcache, i, regs);
116 regcache_raw_collect (regcache, i + 1, regs + 4);
122 /* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
123 for all registers (including the floating-point registers). */
126 hppabsd_fetch_registers (struct target_ops *ops,
127 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 target_ops *ops,
157 struct regcache *regcache, int regnum)
159 if (regnum == -1 || hppabsd_gregset_supplies_p (regnum))
163 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
164 (PTRACE_TYPE_ARG3) ®s, 0) == -1)
165 perror_with_name (_("Couldn't get registers"));
167 hppabsd_collect_gregset (regcache, ®s, regnum);
169 if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
170 (PTRACE_TYPE_ARG3) ®s, 0) == -1)
171 perror_with_name (_("Couldn't write registers"));
174 if (regnum == -1 || hppabsd_fpregset_supplies_p (regnum))
178 if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
179 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
180 perror_with_name (_("Couldn't get floating point status"));
182 hppabsd_collect_fpregset (regcache, &fpregs, regnum);
184 if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
185 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
186 perror_with_name (_("Couldn't write floating point status"));
190 /* Provide a prototype to silence -Wmissing-prototypes. */
191 void _initialize_hppabsd_nat (void);
194 _initialize_hppabsd_nat (void)
196 struct target_ops *t;
198 /* Add in local overrides. */
199 t = inf_ptrace_target ();
200 t->to_fetch_registers = hppabsd_fetch_registers;
201 t->to_store_registers = hppabsd_store_registers;