1 /* Target-dependent code for OpenBSD/hppa
3 Copyright (C) 2004, 2005, 2006, 2008, 2009, 2010
4 Free Software Foundation, Inc.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
26 #include "gdb_assert.h"
27 #include "gdb_string.h"
29 #include "hppa-tdep.h"
30 #include "hppabsd-tdep.h"
32 /* Core file support. */
34 /* Sizeof `struct reg' in <machine/reg.h>. */
35 #define HPPAOBSD_SIZEOF_GREGS (34 * 4)
37 /* Sizeof `struct fpreg' in <machine/reg.h>. */
38 #define HPPAOBSD_SIZEOF_FPREGS (32 * 8)
40 /* Supply register REGNUM from the buffer specified by GREGS and LEN
41 in the general-purpose register set REGSET to register cache
42 REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
45 hppaobsd_supply_gregset (const struct regset *regset,
46 struct regcache *regcache,
47 int regnum, const void *gregs, size_t len)
49 const gdb_byte *regs = gregs;
53 gdb_assert (len >= HPPAOBSD_SIZEOF_GREGS);
55 for (i = HPPA_R1_REGNUM, offset = 4; i <= HPPA_R31_REGNUM; i++, offset += 4)
57 if (regnum == -1 || regnum == i)
58 regcache_raw_supply (regcache, i, regs + offset);
61 if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
62 regcache_raw_supply (regcache, HPPA_SAR_REGNUM, regs);
63 if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
64 regcache_raw_supply (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 32 * 4);
65 if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
66 regcache_raw_supply (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 33 * 4);
69 /* Supply register REGNUM from the buffer specified by FPREGS and LEN
70 in the floating-point register set REGSET to register cache
71 REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
74 hppaobsd_supply_fpregset (const struct regset *regset,
75 struct regcache *regcache,
76 int regnum, const void *fpregs, size_t len)
78 struct gdbarch *gdbarch = get_regcache_arch (regcache);
79 const gdb_byte *regs = fpregs;
82 gdb_assert (len >= HPPAOBSD_SIZEOF_FPREGS);
84 for (i = HPPA_FP0_REGNUM; i <= HPPA_FP31R_REGNUM; i++)
86 if (regnum == i || regnum == -1)
87 regcache_raw_supply (regcache, i, regs + (i - HPPA_FP0_REGNUM) * 4);
91 /* OpenBSD/hppa register sets. */
93 static struct regset hppaobsd_gregset =
96 hppaobsd_supply_gregset
99 static struct regset hppaobsd_fpregset =
102 hppaobsd_supply_fpregset
105 /* Return the appropriate register set for the core section identified
106 by SECT_NAME and SECT_SIZE. */
108 static const struct regset *
109 hppaobsd_regset_from_core_section (struct gdbarch *gdbarch,
110 const char *sect_name, size_t sect_size)
112 if (strcmp (sect_name, ".reg") == 0 && sect_size >= HPPAOBSD_SIZEOF_GREGS)
113 return &hppaobsd_gregset;
115 if (strcmp (sect_name, ".reg2") == 0 && sect_size >= HPPAOBSD_SIZEOF_FPREGS)
116 return &hppaobsd_fpregset;
123 hppaobsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
125 /* Obviously OpenBSD is BSD-based. */
126 hppabsd_init_abi (info, gdbarch);
128 /* Core file support. */
129 set_gdbarch_regset_from_core_section
130 (gdbarch, hppaobsd_regset_from_core_section);
134 /* OpenBSD uses uses the traditional NetBSD core file format, even for
135 ports that use ELF. */
136 #define GDB_OSABI_NETBSD_CORE GDB_OSABI_OPENBSD_ELF
138 static enum gdb_osabi
139 hppaobsd_core_osabi_sniffer (bfd *abfd)
141 if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
142 return GDB_OSABI_NETBSD_CORE;
144 return GDB_OSABI_UNKNOWN;
148 /* Provide a prototype to silence -Wmissing-prototypes. */
149 void _initialize_hppabsd_tdep (void);
152 _initialize_hppabsd_tdep (void)
154 /* BFD doesn't set a flavour for NetBSD style a.out core files. */
155 gdbarch_register_osabi_sniffer (bfd_arch_hppa, bfd_target_unknown_flavour,
156 hppaobsd_core_osabi_sniffer);
158 gdbarch_register_osabi (bfd_arch_hppa, 0, GDB_OSABI_OPENBSD_ELF,