1 /* Native-dependent code for OpenBSD/hppa.
3 Copyright (C) 2004-2017 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/>. */
25 #include <sys/types.h>
26 #include <sys/ptrace.h>
27 #include <machine/reg.h>
29 #include "hppa-tdep.h"
30 #include "inf-ptrace.h"
35 hppaobsd_gregset_supplies_p (int regnum)
37 return (regnum >= HPPA_R0_REGNUM && regnum <= HPPA_CR27_REGNUM);
41 hppaobsd_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 hppaobsd_supply_gregset (struct regcache *regcache, const void *gregs)
51 gdb_byte zero[4] = { 0 };
52 const char *regs = gregs;
55 regcache_raw_supply (regcache, HPPA_R0_REGNUM, &zero);
56 for (regnum = HPPA_R1_REGNUM; regnum <= HPPA_R31_REGNUM; regnum++)
57 regcache_raw_supply (regcache, regnum, regs + regnum * 4);
59 if (sizeof(struct reg) >= 46 * 4)
61 regcache_raw_supply (regcache, HPPA_IPSW_REGNUM, regs);
62 regcache_raw_supply (regcache, HPPA_SAR_REGNUM, regs + 32 * 4);
63 regcache_raw_supply (regcache, HPPA_PCSQ_HEAD_REGNUM, regs + 33 * 4);
64 regcache_raw_supply (regcache, HPPA_PCSQ_TAIL_REGNUM, regs + 34 * 4);
65 regcache_raw_supply (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 35 * 4);
66 regcache_raw_supply (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 36 * 4);
67 regcache_raw_supply (regcache, HPPA_SR0_REGNUM, regs + 37 * 4);
68 regcache_raw_supply (regcache, HPPA_SR1_REGNUM, regs + 38 * 4);
69 regcache_raw_supply (regcache, HPPA_SR2_REGNUM, regs + 39 * 4);
70 regcache_raw_supply (regcache, HPPA_SR3_REGNUM, regs + 40 * 4);
71 regcache_raw_supply (regcache, HPPA_SR4_REGNUM, regs + 41 * 4);
72 regcache_raw_supply (regcache, HPPA_SR5_REGNUM, regs + 42 * 4);
73 regcache_raw_supply (regcache, HPPA_SR6_REGNUM, regs + 43 * 4);
74 regcache_raw_supply (regcache, HPPA_SR7_REGNUM, regs + 44 * 4);
75 regcache_raw_supply (regcache, HPPA_CR26_REGNUM, regs + 45 * 4);
76 regcache_raw_supply (regcache, HPPA_CR27_REGNUM, regs + 46 * 4);
80 regcache_raw_supply (regcache, HPPA_SAR_REGNUM, regs);
81 regcache_raw_supply (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 32 * 4);
82 regcache_raw_supply (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 33 * 4);
86 /* Supply the floating-point registers stored in FPREGS to REGCACHE. */
89 hppaobsd_supply_fpregset (struct regcache *regcache, const void *fpregs)
91 const char *regs = fpregs;
94 for (regnum = HPPA_FP0_REGNUM; regnum <= HPPA_FP31R_REGNUM;
95 regnum += 2, regs += 8)
97 regcache_raw_supply (regcache, regnum, regs);
98 regcache_raw_supply (regcache, regnum + 1, regs + 4);
102 /* Collect the general-purpose registers from REGCACHE and store them
106 hppaobsd_collect_gregset (const struct regcache *regcache,
107 void *gregs, int regnum)
112 for (i = HPPA_R1_REGNUM; i <= HPPA_R31_REGNUM; i++)
114 if (regnum == -1 || regnum == i)
115 regcache_raw_collect (regcache, i, regs + i * 4);
118 if (sizeof(struct reg) >= 46 * 4)
120 if (regnum == -1 || regnum == HPPA_IPSW_REGNUM)
121 regcache_raw_collect (regcache, HPPA_IPSW_REGNUM, regs);
122 if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
123 regcache_raw_collect (regcache, HPPA_SAR_REGNUM, regs + 32 * 4);
124 if (regnum == -1 || regnum == HPPA_PCSQ_HEAD_REGNUM)
125 regcache_raw_collect (regcache, HPPA_PCSQ_HEAD_REGNUM, regs + 33 * 4);
126 if (regnum == -1 || regnum == HPPA_PCSQ_TAIL_REGNUM)
127 regcache_raw_collect (regcache, HPPA_PCSQ_TAIL_REGNUM, regs + 34 * 4);
128 if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
129 regcache_raw_collect (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 35 * 4);
130 if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
131 regcache_raw_collect (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 36 * 4);
132 if (regnum == -1 || regnum == HPPA_SR0_REGNUM)
133 regcache_raw_collect (regcache, HPPA_SR0_REGNUM, regs + 37 * 4);
134 if (regnum == -1 || regnum == HPPA_SR1_REGNUM)
135 regcache_raw_collect (regcache, HPPA_SR1_REGNUM, regs + 38 * 4);
136 if (regnum == -1 || regnum == HPPA_SR2_REGNUM)
137 regcache_raw_collect (regcache, HPPA_SR2_REGNUM, regs + 39 * 4);
138 if (regnum == -1 || regnum == HPPA_SR3_REGNUM)
139 regcache_raw_collect (regcache, HPPA_SR3_REGNUM, regs + 40 * 4);
140 if (regnum == -1 || regnum == HPPA_SR4_REGNUM)
141 regcache_raw_collect (regcache, HPPA_SR4_REGNUM, regs + 41 * 4);
142 if (regnum == -1 || regnum == HPPA_SR5_REGNUM)
143 regcache_raw_collect (regcache, HPPA_SR5_REGNUM, regs + 42 * 4);
144 if (regnum == -1 || regnum == HPPA_SR6_REGNUM)
145 regcache_raw_collect (regcache, HPPA_SR6_REGNUM, regs + 43 * 4);
146 if (regnum == -1 || regnum == HPPA_SR7_REGNUM)
147 regcache_raw_collect (regcache, HPPA_SR7_REGNUM, regs + 44 * 4);
148 if (regnum == -1 || regnum == HPPA_CR26_REGNUM)
149 regcache_raw_collect (regcache, HPPA_CR26_REGNUM, regs + 45 * 4);
150 if (regnum == -1 || regnum == HPPA_CR27_REGNUM)
151 regcache_raw_collect (regcache, HPPA_CR27_REGNUM, regs + 46 * 4);
155 if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
156 regcache_raw_collect (regcache, HPPA_SAR_REGNUM, regs);
157 if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
158 regcache_raw_collect (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 32 * 4);
159 if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
160 regcache_raw_collect (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 33 * 4);
164 /* Collect the floating-point registers from REGCACHE and store them
168 hppaobsd_collect_fpregset (struct regcache *regcache,
169 void *fpregs, int regnum)
174 for (i = HPPA_FP0_REGNUM; i <= HPPA_FP31R_REGNUM; i += 2, regs += 8)
176 if (regnum == -1 || regnum == i || regnum == i + 1)
178 regcache_raw_collect (regcache, i, regs);
179 regcache_raw_collect (regcache, i + 1, regs + 4);
185 /* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
186 for all registers (including the floating-point registers). */
189 hppaobsd_fetch_registers (struct target_ops *ops,
190 struct regcache *regcache, int regnum)
192 if (regnum == -1 || hppaobsd_gregset_supplies_p (regnum))
196 if (ptrace (PT_GETREGS, ptid_get_pid (inferior_ptid),
197 (PTRACE_TYPE_ARG3) ®s, 0) == -1)
198 perror_with_name (_("Couldn't get registers"));
200 hppaobsd_supply_gregset (regcache, ®s);
203 if (regnum == -1 || hppaobsd_fpregset_supplies_p (regnum))
207 if (ptrace (PT_GETFPREGS, ptid_get_pid (inferior_ptid),
208 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
209 perror_with_name (_("Couldn't get floating point status"));
211 hppaobsd_supply_fpregset (regcache, &fpregs);
215 /* Store register REGNUM back into the inferior. If REGNUM is -1, do
216 this for all registers (including the floating-point registers). */
219 hppaobsd_store_registers (struct target_ops *ops,
220 struct regcache *regcache, int regnum)
222 if (regnum == -1 || hppaobsd_gregset_supplies_p (regnum))
226 if (ptrace (PT_GETREGS, ptid_get_pid (inferior_ptid),
227 (PTRACE_TYPE_ARG3) ®s, 0) == -1)
228 perror_with_name (_("Couldn't get registers"));
230 hppaobsd_collect_gregset (regcache, ®s, regnum);
232 if (ptrace (PT_SETREGS, ptid_get_pid (inferior_ptid),
233 (PTRACE_TYPE_ARG3) ®s, 0) == -1)
234 perror_with_name (_("Couldn't write registers"));
237 if (regnum == -1 || hppaobsd_fpregset_supplies_p (regnum))
241 if (ptrace (PT_GETFPREGS, ptid_get_pid (inferior_ptid),
242 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
243 perror_with_name (_("Couldn't get floating point status"));
245 hppaobsd_collect_fpregset (regcache, &fpregs, regnum);
247 if (ptrace (PT_SETFPREGS, ptid_get_pid (inferior_ptid),
248 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
249 perror_with_name (_("Couldn't write floating point status"));
253 /* Provide a prototype to silence -Wmissing-prototypes. */
254 void _initialize_hppaobsd_nat (void);
257 _initialize_hppaobsd_nat (void)
259 struct target_ops *t;
261 t = inf_ptrace_target ();
262 t->to_fetch_registers = hppaobsd_fetch_registers;
263 t->to_store_registers = hppaobsd_store_registers;