1 /* Native-dependent code for NetBSD/hppa.
3 Copyright (C) 2008-2018 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"
33 class hppa_nbsd_nat_target final : public nbsd_nat_target
35 void fetch_registers (struct regcache *, int) override;
36 void store_registers (struct regcache *, int) override;
39 static hppa_nbsd_nat_target the_hppa_nbsd_nat_target;
42 hppanbsd_gregset_supplies_p (int regnum)
44 return ((regnum >= HPPA_R0_REGNUM && regnum <= HPPA_R31_REGNUM) ||
45 (regnum >= HPPA_SAR_REGNUM && regnum <= HPPA_PCSQ_TAIL_REGNUM) ||
46 regnum == HPPA_IPSW_REGNUM ||
47 (regnum >= HPPA_SR4_REGNUM && regnum <= HPPA_SR4_REGNUM + 5));
51 hppanbsd_fpregset_supplies_p (int regnum)
53 return (regnum >= HPPA_FP0_REGNUM && regnum <= HPPA_FP31R_REGNUM);
56 /* Supply the general-purpose registers stored in GREGS to REGCACHE. */
59 hppanbsd_supply_gregset (struct regcache *regcache, const void *gregs)
61 const char *regs = gregs;
65 for (regnum = HPPA_R1_REGNUM; regnum <= HPPA_R31_REGNUM; regnum++)
66 regcache->raw_supply (regnum, regs + regnum * 4);
68 regcache->raw_supply (HPPA_SAR_REGNUM, regs + 32 * 4);
69 regcache->raw_supply (HPPA_PCSQ_HEAD_REGNUM, regs + 33 * 4);
70 regcache->raw_supply (HPPA_PCSQ_TAIL_REGNUM, regs + 34 * 4);
71 regcache->raw_supply (HPPA_PCOQ_HEAD_REGNUM, regs + 35 * 4);
72 regcache->raw_supply (HPPA_PCOQ_TAIL_REGNUM, regs + 36 * 4);
73 regcache->raw_supply (HPPA_IPSW_REGNUM, regs);
74 regcache->raw_supply (HPPA_SR4_REGNUM, regs + 41 * 4);
75 regcache->raw_supply (HPPA_SR4_REGNUM + 1, regs + 37 * 4);
76 regcache->raw_supply (HPPA_SR4_REGNUM + 2, regs + 38 * 4);
77 regcache->raw_supply (HPPA_SR4_REGNUM + 3, regs + 39 * 4);
78 regcache->raw_supply (HPPA_SR4_REGNUM + 4, regs + 40 * 4);
81 /* Supply the floating-point registers stored in FPREGS to REGCACHE. */
84 hppanbsd_supply_fpregset (struct regcache *regcache, const void *fpregs)
86 const char *regs = fpregs;
89 for (regnum = HPPA_FP0_REGNUM; regnum <= HPPA_FP31R_REGNUM;
90 regnum += 2, regs += 8)
92 regcache->raw_supply (regnum, regs);
93 regcache->raw_supply (regnum + 1, regs + 4);
97 /* Collect the general-purpose registers from REGCACHE and store them
101 hppanbsd_collect_gregset (const struct regcache *regcache,
102 void *gregs, int regnum)
108 for (i = HPPA_R1_REGNUM; i <= HPPA_R31_REGNUM; i++)
110 if (regnum == -1 || regnum == i)
111 regcache_raw_collect (regcache, i, regs + i * 4);
114 if (regnum == -1 || regnum == HPPA_IPSW_REGNUM)
115 regcache_raw_collect (regcache, HPPA_IPSW_REGNUM, regs);
116 if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
117 regcache_raw_collect (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 35 * 4);
118 if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
119 regcache_raw_collect (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 36 * 4);
121 if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
122 regcache_raw_collect (regcache, HPPA_SAR_REGNUM, regs + 32 * 4);
123 if (regnum == -1 || regnum == HPPA_PCSQ_HEAD_REGNUM)
124 regcache_raw_collect (regcache, HPPA_PCSQ_HEAD_REGNUM, regs + 33 * 4);
125 if (regnum == -1 || regnum == HPPA_PCSQ_TAIL_REGNUM)
126 regcache_raw_collect (regcache, HPPA_PCSQ_TAIL_REGNUM, regs + 34 * 4);
127 if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
128 regcache_raw_collect (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 35 * 4);
129 if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
130 regcache_raw_collect (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 36 * 4);
131 if (regnum == -1 || regnum == HPPA_IPSW_REGNUM)
132 regcache_raw_collect (regcache, HPPA_IPSW_REGNUM, regs);
133 if (regnum == -1 || regnum == HPPA_SR4_REGNUM)
134 regcache_raw_collect (regcache, HPPA_SR4_REGNUM, regs + 41 * 4);
135 if (regnum == -1 || regnum == HPPA_SR4_REGNUM + 1)
136 regcache_raw_collect (regcache, HPPA_SR4_REGNUM + 1, regs + 37 * 4);
137 if (regnum == -1 || regnum == HPPA_SR4_REGNUM + 2)
138 regcache_raw_collect (regcache, HPPA_SR4_REGNUM + 2, regs + 38 * 4);
139 if (regnum == -1 || regnum == HPPA_SR4_REGNUM + 3)
140 regcache_raw_collect (regcache, HPPA_SR4_REGNUM + 3, regs + 39 * 4);
141 if (regnum == -1 || regnum == HPPA_SR4_REGNUM + 4)
142 regcache_raw_collect (regcache, HPPA_SR4_REGNUM + 4, regs + 40 * 4);
145 /* Collect the floating-point registers from REGCACHE and store them
149 hppanbsd_collect_fpregset (struct regcache *regcache,
150 void *fpregs, int regnum)
155 for (i = HPPA_FP0_REGNUM; i <= HPPA_FP31R_REGNUM; i += 2, regs += 8)
157 if (regnum == -1 || regnum == i || regnum == i + 1)
159 regcache_raw_collect (regcache, i, regs);
160 regcache_raw_collect (regcache, i + 1, regs + 4);
166 /* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
167 for all registers (including the floating-point registers). */
170 hppa_nbsd_nat_target::fetch_registers (struct regcache *regcache, int regnum)
173 pid_t pid = ptid_get_pid (regcache->ptid ());
175 if (regnum == -1 || hppanbsd_gregset_supplies_p (regnum))
179 if (ptrace (PT_GETREGS, pid, (PTRACE_TYPE_ARG3) ®s, 0) == -1)
180 perror_with_name (_("Couldn't get registers"));
182 hppanbsd_supply_gregset (regcache, ®s);
185 if (regnum == -1 || hppanbsd_fpregset_supplies_p (regnum))
189 if (ptrace (PT_GETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
190 perror_with_name (_("Couldn't get floating point status"));
192 hppanbsd_supply_fpregset (regcache, &fpregs);
196 /* Store register REGNUM back into the inferior. If REGNUM is -1, do
197 this for all registers (including the floating-point registers). */
200 hppa_nbsd_nat_target::store_registers (struct regcache *regcache, int regnum)
202 pid_t pid = ptid_get_pid (regcache->ptid ());
204 if (regnum == -1 || hppanbsd_gregset_supplies_p (regnum))
208 if (ptrace (PT_GETREGS, pid, (PTRACE_TYPE_ARG3) ®s, 0) == -1)
209 perror_with_name (_("Couldn't get registers"));
211 hppanbsd_collect_gregset (regcache, ®s, regnum);
213 if (ptrace (PT_SETREGS, pid, (PTRACE_TYPE_ARG3) ®s, 0) == -1)
214 perror_with_name (_("Couldn't write registers"));
217 if (regnum == -1 || hppanbsd_fpregset_supplies_p (regnum))
221 if (ptrace (PT_GETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
222 perror_with_name (_("Couldn't get floating point status"));
224 hppanbsd_collect_fpregset (regcache, &fpregs, regnum);
226 if (ptrace (PT_SETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
227 perror_with_name (_("Couldn't write floating point status"));
232 _initialize_hppanbsd_nat (void)
234 add_inf_child_target (&the_hppa_nbsd_nat_target);