1 /* Native-dependent code for OpenBSD/hppa.
3 Copyright (C) 2004-2018 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/>. */
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 pid_t pid
= ptid_get_pid (regcache_get_ptid (regcache
));
194 if (regnum
== -1 || hppaobsd_gregset_supplies_p (regnum
))
198 if (ptrace (PT_GETREGS
, pid
, (PTRACE_TYPE_ARG3
) ®s
, 0) == -1)
199 perror_with_name (_("Couldn't get registers"));
201 hppaobsd_supply_gregset (regcache
, ®s
);
204 if (regnum
== -1 || hppaobsd_fpregset_supplies_p (regnum
))
208 if (ptrace (PT_GETFPREGS
, pid
, (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
, pid
, (PTRACE_TYPE_ARG3
) ®s
, 0) == -1)
227 perror_with_name (_("Couldn't get registers"));
229 hppaobsd_collect_gregset (regcache
, ®s
, regnum
);
231 if (ptrace (PT_SETREGS
, pid
, (PTRACE_TYPE_ARG3
) ®s
, 0) == -1)
232 perror_with_name (_("Couldn't write registers"));
235 if (regnum
== -1 || hppaobsd_fpregset_supplies_p (regnum
))
239 if (ptrace (PT_GETFPREGS
, pid
, (PTRACE_TYPE_ARG3
) &fpregs
, 0) == -1)
240 perror_with_name (_("Couldn't get floating point status"));
242 hppaobsd_collect_fpregset (regcache
, &fpregs
, regnum
);
244 if (ptrace (PT_SETFPREGS
, pid
, (PTRACE_TYPE_ARG3
) &fpregs
, 0) == -1)
245 perror_with_name (_("Couldn't write floating point status"));
250 _initialize_hppaobsd_nat (void)
252 struct target_ops
*t
;
254 t
= inf_ptrace_target ();
255 t
->to_fetch_registers
= hppaobsd_fetch_registers
;
256 t
->to_store_registers
= hppaobsd_store_registers
;
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