1 /* Native-dependent code for HP PA-RISC BSD's.
3 Copyright (C) 2004-2005, 2007-2012 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"
33 hppabsd_gregset_supplies_p (int regnum
)
35 return (regnum
>= HPPA_R0_REGNUM
&& regnum
<= HPPA_PCOQ_TAIL_REGNUM
);
39 hppabsd_fpregset_supplies_p (int regnum
)
41 return (regnum
>= HPPA_FP0_REGNUM
&& regnum
<= HPPA_FP31R_REGNUM
);
44 /* Supply the general-purpose registers stored in GREGS to REGCACHE. */
47 hppabsd_supply_gregset (struct regcache
*regcache
, const void *gregs
)
49 const char *regs
= gregs
;
52 for (regnum
= HPPA_R1_REGNUM
; regnum
<= HPPA_R31_REGNUM
; regnum
++)
53 regcache_raw_supply (regcache
, regnum
, regs
+ regnum
* 4);
55 regcache_raw_supply (regcache
, HPPA_SAR_REGNUM
, regs
);
56 regcache_raw_supply (regcache
, HPPA_PCOQ_HEAD_REGNUM
, regs
+ 32 * 4);
57 regcache_raw_supply (regcache
, HPPA_PCOQ_TAIL_REGNUM
, regs
+ 33 * 4);
60 /* Supply the floating-point registers stored in FPREGS to REGCACHE. */
63 hppabsd_supply_fpregset (struct regcache
*regcache
, const void *fpregs
)
65 const char *regs
= fpregs
;
68 for (regnum
= HPPA_FP0_REGNUM
; regnum
<= HPPA_FP31R_REGNUM
;
69 regnum
+= 2, regs
+= 8)
71 regcache_raw_supply (regcache
, regnum
, regs
);
72 regcache_raw_supply (regcache
, regnum
+ 1, regs
+ 4);
76 /* Collect the general-purpose registers from REGCACHE and store them
80 hppabsd_collect_gregset (const struct regcache
*regcache
,
81 void *gregs
, int regnum
)
86 for (i
= HPPA_R1_REGNUM
; i
<= HPPA_R31_REGNUM
; i
++)
88 if (regnum
== -1 || regnum
== i
)
89 regcache_raw_collect (regcache
, i
, regs
+ i
* 4);
92 if (regnum
== -1 || regnum
== HPPA_SAR_REGNUM
)
93 regcache_raw_collect (regcache
, HPPA_SAR_REGNUM
, regs
);
94 if (regnum
== -1 || regnum
== HPPA_PCOQ_HEAD_REGNUM
)
95 regcache_raw_collect (regcache
, HPPA_PCOQ_HEAD_REGNUM
, regs
+ 32 * 4);
96 if (regnum
== -1 || regnum
== HPPA_PCOQ_TAIL_REGNUM
)
97 regcache_raw_collect (regcache
, HPPA_PCOQ_TAIL_REGNUM
, regs
+ 33 * 4);
100 /* Collect the floating-point registers from REGCACHE and store them
104 hppabsd_collect_fpregset (struct regcache
*regcache
,
105 void *fpregs
, int regnum
)
110 for (i
= HPPA_FP0_REGNUM
; i
<= HPPA_FP31R_REGNUM
; i
+= 2, regs
+= 8)
112 if (regnum
== -1 || regnum
== i
|| regnum
== i
+ 1)
114 regcache_raw_collect (regcache
, i
, regs
);
115 regcache_raw_collect (regcache
, i
+ 1, regs
+ 4);
121 /* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
122 for all registers (including the floating-point registers). */
125 hppabsd_fetch_registers (struct target_ops
*ops
,
126 struct regcache
*regcache
, int regnum
)
128 if (regnum
== -1 || hppabsd_gregset_supplies_p (regnum
))
132 if (ptrace (PT_GETREGS
, PIDGET (inferior_ptid
),
133 (PTRACE_TYPE_ARG3
) ®s
, 0) == -1)
134 perror_with_name (_("Couldn't get registers"));
136 hppabsd_supply_gregset (regcache
, ®s
);
139 if (regnum
== -1 || hppabsd_fpregset_supplies_p (regnum
))
143 if (ptrace (PT_GETFPREGS
, PIDGET (inferior_ptid
),
144 (PTRACE_TYPE_ARG3
) &fpregs
, 0) == -1)
145 perror_with_name (_("Couldn't get floating point status"));
147 hppabsd_supply_fpregset (regcache
, &fpregs
);
151 /* Store register REGNUM back into the inferior. If REGNUM is -1, do
152 this for all registers (including the floating-point registers). */
155 hppabsd_store_registers (struct target_ops
*ops
,
156 struct regcache
*regcache
, int regnum
)
158 if (regnum
== -1 || hppabsd_gregset_supplies_p (regnum
))
162 if (ptrace (PT_GETREGS
, PIDGET (inferior_ptid
),
163 (PTRACE_TYPE_ARG3
) ®s
, 0) == -1)
164 perror_with_name (_("Couldn't get registers"));
166 hppabsd_collect_gregset (regcache
, ®s
, regnum
);
168 if (ptrace (PT_SETREGS
, PIDGET (inferior_ptid
),
169 (PTRACE_TYPE_ARG3
) ®s
, 0) == -1)
170 perror_with_name (_("Couldn't write registers"));
173 if (regnum
== -1 || hppabsd_fpregset_supplies_p (regnum
))
177 if (ptrace (PT_GETFPREGS
, PIDGET (inferior_ptid
),
178 (PTRACE_TYPE_ARG3
) &fpregs
, 0) == -1)
179 perror_with_name (_("Couldn't get floating point status"));
181 hppabsd_collect_fpregset (regcache
, &fpregs
, regnum
);
183 if (ptrace (PT_SETFPREGS
, PIDGET (inferior_ptid
),
184 (PTRACE_TYPE_ARG3
) &fpregs
, 0) == -1)
185 perror_with_name (_("Couldn't write floating point status"));
189 /* Provide a prototype to silence -Wmissing-prototypes. */
190 void _initialize_hppabsd_nat (void);
193 _initialize_hppabsd_nat (void)
195 struct target_ops
*t
;
197 /* Add in local overrides. */
198 t
= inf_ptrace_target ();
199 t
->to_fetch_registers
= hppabsd_fetch_registers
;
200 t
->to_store_registers
= hppabsd_store_registers
;
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