1 /* Native-dependent code for NetBSD/hppa.
3 Copyright (C) 2008-2017 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 3 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, see <http://www.gnu.org/licenses/>. */
24 #include <sys/types.h>
25 #include <sys/ptrace.h>
26 #include <machine/reg.h>
28 #include "hppa-tdep.h"
29 #include "inf-ptrace.h"
34 hppanbsd_gregset_supplies_p (int regnum)
36 return ((regnum >= HPPA_R0_REGNUM && regnum <= HPPA_R31_REGNUM) ||
37 (regnum >= HPPA_SAR_REGNUM && regnum <= HPPA_PCSQ_TAIL_REGNUM) ||
38 regnum == HPPA_IPSW_REGNUM ||
39 (regnum >= HPPA_SR4_REGNUM && regnum <= HPPA_SR4_REGNUM + 5));
43 hppanbsd_fpregset_supplies_p (int regnum)
45 return (regnum >= HPPA_FP0_REGNUM && regnum <= HPPA_FP31R_REGNUM);
48 /* Supply the general-purpose registers stored in GREGS to REGCACHE. */
51 hppanbsd_supply_gregset (struct regcache *regcache, const void *gregs)
53 const char *regs = gregs;
57 for (regnum = HPPA_R1_REGNUM; regnum <= HPPA_R31_REGNUM; regnum++)
58 regcache_raw_supply (regcache, regnum, regs + regnum * 4);
60 regcache_raw_supply (regcache, HPPA_SAR_REGNUM, regs + 32 * 4);
61 regcache_raw_supply (regcache, HPPA_PCSQ_HEAD_REGNUM, regs + 33 * 4);
62 regcache_raw_supply (regcache, HPPA_PCSQ_TAIL_REGNUM, regs + 34 * 4);
63 regcache_raw_supply (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 35 * 4);
64 regcache_raw_supply (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 36 * 4);
65 regcache_raw_supply (regcache, HPPA_IPSW_REGNUM, regs);
66 regcache_raw_supply (regcache, HPPA_SR4_REGNUM, regs + 41 * 4);
67 regcache_raw_supply (regcache, HPPA_SR4_REGNUM + 1, regs + 37 * 4);
68 regcache_raw_supply (regcache, HPPA_SR4_REGNUM + 2, regs + 38 * 4);
69 regcache_raw_supply (regcache, HPPA_SR4_REGNUM + 3, regs + 39 * 4);
70 regcache_raw_supply (regcache, HPPA_SR4_REGNUM + 4, regs + 40 * 4);
73 /* Supply the floating-point registers stored in FPREGS to REGCACHE. */
76 hppanbsd_supply_fpregset (struct regcache *regcache, const void *fpregs)
78 const char *regs = fpregs;
81 for (regnum = HPPA_FP0_REGNUM; regnum <= HPPA_FP31R_REGNUM;
82 regnum += 2, regs += 8)
84 regcache_raw_supply (regcache, regnum, regs);
85 regcache_raw_supply (regcache, regnum + 1, regs + 4);
89 /* Collect the general-purpose registers from REGCACHE and store them
93 hppanbsd_collect_gregset (const struct regcache *regcache,
94 void *gregs, int regnum)
100 for (i = HPPA_R1_REGNUM; i <= HPPA_R31_REGNUM; i++)
102 if (regnum == -1 || regnum == i)
103 regcache_raw_collect (regcache, i, regs + i * 4);
106 if (regnum == -1 || regnum == HPPA_IPSW_REGNUM)
107 regcache_raw_collect (regcache, HPPA_IPSW_REGNUM, regs);
108 if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
109 regcache_raw_collect (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 35 * 4);
110 if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
111 regcache_raw_collect (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 36 * 4);
113 if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
114 regcache_raw_collect (regcache, HPPA_SAR_REGNUM, regs + 32 * 4);
115 if (regnum == -1 || regnum == HPPA_PCSQ_HEAD_REGNUM)
116 regcache_raw_collect (regcache, HPPA_PCSQ_HEAD_REGNUM, regs + 33 * 4);
117 if (regnum == -1 || regnum == HPPA_PCSQ_TAIL_REGNUM)
118 regcache_raw_collect (regcache, HPPA_PCSQ_TAIL_REGNUM, regs + 34 * 4);
119 if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
120 regcache_raw_collect (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 35 * 4);
121 if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
122 regcache_raw_collect (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 36 * 4);
123 if (regnum == -1 || regnum == HPPA_IPSW_REGNUM)
124 regcache_raw_collect (regcache, HPPA_IPSW_REGNUM, regs);
125 if (regnum == -1 || regnum == HPPA_SR4_REGNUM)
126 regcache_raw_collect (regcache, HPPA_SR4_REGNUM, regs + 41 * 4);
127 if (regnum == -1 || regnum == HPPA_SR4_REGNUM + 1)
128 regcache_raw_collect (regcache, HPPA_SR4_REGNUM + 1, regs + 37 * 4);
129 if (regnum == -1 || regnum == HPPA_SR4_REGNUM + 2)
130 regcache_raw_collect (regcache, HPPA_SR4_REGNUM + 2, regs + 38 * 4);
131 if (regnum == -1 || regnum == HPPA_SR4_REGNUM + 3)
132 regcache_raw_collect (regcache, HPPA_SR4_REGNUM + 3, regs + 39 * 4);
133 if (regnum == -1 || regnum == HPPA_SR4_REGNUM + 4)
134 regcache_raw_collect (regcache, HPPA_SR4_REGNUM + 4, regs + 40 * 4);
137 /* Collect the floating-point registers from REGCACHE and store them
141 hppanbsd_collect_fpregset (struct regcache *regcache,
142 void *fpregs, int regnum)
147 for (i = HPPA_FP0_REGNUM; i <= HPPA_FP31R_REGNUM; i += 2, regs += 8)
149 if (regnum == -1 || regnum == i || regnum == i + 1)
151 regcache_raw_collect (regcache, i, regs);
152 regcache_raw_collect (regcache, i + 1, regs + 4);
158 /* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
159 for all registers (including the floating-point registers). */
162 hppanbsd_fetch_registers (struct target_ops *ops,
163 struct regcache *regcache, int regnum)
166 pid_t pid = ptid_get_pid (regcache_get_ptid (regcache));
168 if (regnum == -1 || hppanbsd_gregset_supplies_p (regnum))
172 if (ptrace (PT_GETREGS, pid, (PTRACE_TYPE_ARG3) ®s, 0) == -1)
173 perror_with_name (_("Couldn't get registers"));
175 hppanbsd_supply_gregset (regcache, ®s);
178 if (regnum == -1 || hppanbsd_fpregset_supplies_p (regnum))
182 if (ptrace (PT_GETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
183 perror_with_name (_("Couldn't get floating point status"));
185 hppanbsd_supply_fpregset (regcache, &fpregs);
189 /* Store register REGNUM back into the inferior. If REGNUM is -1, do
190 this for all registers (including the floating-point registers). */
193 hppanbsd_store_registers (struct target_ops *ops,
194 struct regcache *regcache, int regnum)
196 pid_t pid = ptid_get_pid (regcache_get_ptid (regcache));
198 if (regnum == -1 || hppanbsd_gregset_supplies_p (regnum))
202 if (ptrace (PT_GETREGS, pid, (PTRACE_TYPE_ARG3) ®s, 0) == -1)
203 perror_with_name (_("Couldn't get registers"));
205 hppanbsd_collect_gregset (regcache, ®s, regnum);
207 if (ptrace (PT_SETREGS, pid, (PTRACE_TYPE_ARG3) ®s, 0) == -1)
208 perror_with_name (_("Couldn't write registers"));
211 if (regnum == -1 || hppanbsd_fpregset_supplies_p (regnum))
215 if (ptrace (PT_GETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
216 perror_with_name (_("Couldn't get floating point status"));
218 hppanbsd_collect_fpregset (regcache, &fpregs, regnum);
220 if (ptrace (PT_SETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
221 perror_with_name (_("Couldn't write floating point status"));
226 /* Provide a prototype to silence -Wmissing-prototypes. */
227 void _initialize_hppanbsd_nat (void);
230 _initialize_hppanbsd_nat (void)
232 struct target_ops *t;
234 /* Add some extra features to the ptrace target. */
235 t = inf_ptrace_target ();
237 t->to_fetch_registers = hppanbsd_fetch_registers;
238 t->to_store_registers = hppanbsd_store_registers;
240 t->to_pid_to_exec_file = nbsd_pid_to_exec_file;