1 /* Target-dependent code for OpenBSD/hppa
3 Copyright (C) 2004-2013 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 "gdb_assert.h"
26 #include "gdb_string.h"
28 #include "hppa-tdep.h"
29 #include "hppabsd-tdep.h"
31 /* Core file support. */
33 /* Sizeof `struct reg' in <machine/reg.h>. */
34 #define HPPAOBSD_SIZEOF_GREGS (34 * 4)
36 /* Sizeof `struct fpreg' in <machine/reg.h>. */
37 #define HPPAOBSD_SIZEOF_FPREGS (32 * 8)
39 /* Supply register REGNUM from the buffer specified by GREGS and LEN
40 in the general-purpose register set REGSET to register cache
41 REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
44 hppaobsd_supply_gregset (const struct regset
*regset
,
45 struct regcache
*regcache
,
46 int regnum
, const void *gregs
, size_t len
)
48 const gdb_byte
*regs
= gregs
;
52 gdb_assert (len
>= HPPAOBSD_SIZEOF_GREGS
);
54 for (i
= HPPA_R1_REGNUM
, offset
= 4; i
<= HPPA_R31_REGNUM
; i
++, offset
+= 4)
56 if (regnum
== -1 || regnum
== i
)
57 regcache_raw_supply (regcache
, i
, regs
+ offset
);
60 if (regnum
== -1 || regnum
== HPPA_SAR_REGNUM
)
61 regcache_raw_supply (regcache
, HPPA_SAR_REGNUM
, regs
);
62 if (regnum
== -1 || regnum
== HPPA_PCOQ_HEAD_REGNUM
)
63 regcache_raw_supply (regcache
, HPPA_PCOQ_HEAD_REGNUM
, regs
+ 32 * 4);
64 if (regnum
== -1 || regnum
== HPPA_PCOQ_TAIL_REGNUM
)
65 regcache_raw_supply (regcache
, HPPA_PCOQ_TAIL_REGNUM
, regs
+ 33 * 4);
68 /* Supply register REGNUM from the buffer specified by FPREGS and LEN
69 in the floating-point register set REGSET to register cache
70 REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
73 hppaobsd_supply_fpregset (const struct regset
*regset
,
74 struct regcache
*regcache
,
75 int regnum
, const void *fpregs
, size_t len
)
77 struct gdbarch
*gdbarch
= get_regcache_arch (regcache
);
78 const gdb_byte
*regs
= fpregs
;
81 gdb_assert (len
>= HPPAOBSD_SIZEOF_FPREGS
);
83 for (i
= HPPA_FP0_REGNUM
; i
<= HPPA_FP31R_REGNUM
; i
++)
85 if (regnum
== i
|| regnum
== -1)
86 regcache_raw_supply (regcache
, i
, regs
+ (i
- HPPA_FP0_REGNUM
) * 4);
90 /* OpenBSD/hppa register sets. */
92 static struct regset hppaobsd_gregset
=
95 hppaobsd_supply_gregset
98 static struct regset hppaobsd_fpregset
=
101 hppaobsd_supply_fpregset
104 /* Return the appropriate register set for the core section identified
105 by SECT_NAME and SECT_SIZE. */
107 static const struct regset
*
108 hppaobsd_regset_from_core_section (struct gdbarch
*gdbarch
,
109 const char *sect_name
, size_t sect_size
)
111 if (strcmp (sect_name
, ".reg") == 0 && sect_size
>= HPPAOBSD_SIZEOF_GREGS
)
112 return &hppaobsd_gregset
;
114 if (strcmp (sect_name
, ".reg2") == 0 && sect_size
>= HPPAOBSD_SIZEOF_FPREGS
)
115 return &hppaobsd_fpregset
;
122 hppaobsd_init_abi (struct gdbarch_info info
, struct gdbarch
*gdbarch
)
124 /* Obviously OpenBSD is BSD-based. */
125 hppabsd_init_abi (info
, gdbarch
);
127 /* Core file support. */
128 set_gdbarch_regset_from_core_section
129 (gdbarch
, hppaobsd_regset_from_core_section
);
133 /* OpenBSD uses uses the traditional NetBSD core file format, even for
134 ports that use ELF. */
135 #define GDB_OSABI_NETBSD_CORE GDB_OSABI_OPENBSD_ELF
137 static enum gdb_osabi
138 hppaobsd_core_osabi_sniffer (bfd
*abfd
)
140 if (strcmp (bfd_get_target (abfd
), "netbsd-core") == 0)
141 return GDB_OSABI_NETBSD_CORE
;
143 return GDB_OSABI_UNKNOWN
;
147 /* Provide a prototype to silence -Wmissing-prototypes. */
148 void _initialize_hppabsd_tdep (void);
151 _initialize_hppabsd_tdep (void)
153 /* BFD doesn't set a flavour for NetBSD style a.out core files. */
154 gdbarch_register_osabi_sniffer (bfd_arch_hppa
, bfd_target_unknown_flavour
,
155 hppaobsd_core_osabi_sniffer
);
157 gdbarch_register_osabi (bfd_arch_hppa
, 0, GDB_OSABI_OPENBSD_ELF
,