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"
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) /* OpenBSD 5.1 and earlier. */
35 #define HPPANBSD_SIZEOF_GREGS (46 * 4) /* NetBSD and OpenBSD 5.2 and later. */
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 gdb_byte zero[4] = { 0 };
50 const gdb_byte *regs = gregs;
54 gdb_assert (len >= HPPAOBSD_SIZEOF_GREGS);
56 if (regnum == -1 || regnum == HPPA_R0_REGNUM)
57 regcache_raw_supply (regcache, HPPA_R0_REGNUM, &zero);
58 for (i = HPPA_R1_REGNUM, offset = 4; i <= HPPA_R31_REGNUM; i++, offset += 4)
60 if (regnum == -1 || regnum == i)
61 regcache_raw_supply (regcache, i, regs + offset);
64 if (len >= HPPANBSD_SIZEOF_GREGS)
66 if (regnum == -1 || regnum == HPPA_IPSW_REGNUM)
67 regcache_raw_supply (regcache, HPPA_IPSW_REGNUM, regs);
68 if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
69 regcache_raw_supply (regcache, HPPA_SAR_REGNUM, regs + 32 * 4);
70 if (regnum == -1 || regnum == HPPA_PCSQ_HEAD_REGNUM)
71 regcache_raw_supply (regcache, HPPA_PCSQ_HEAD_REGNUM, regs + 33 * 4);
72 if (regnum == -1 || regnum == HPPA_PCSQ_TAIL_REGNUM)
73 regcache_raw_supply (regcache, HPPA_PCSQ_TAIL_REGNUM, regs + 34 * 4);
74 if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
75 regcache_raw_supply (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 35 * 4);
76 if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
77 regcache_raw_supply (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 36 * 4);
78 if (regnum == -1 || regnum == HPPA_SR0_REGNUM)
79 regcache_raw_supply (regcache, HPPA_SR0_REGNUM, regs + 37 * 4);
80 if (regnum == -1 || regnum == HPPA_SR1_REGNUM)
81 regcache_raw_supply (regcache, HPPA_SR1_REGNUM, regs + 38 * 4);
82 if (regnum == -1 || regnum == HPPA_SR2_REGNUM)
83 regcache_raw_supply (regcache, HPPA_SR2_REGNUM, regs + 39 * 4);
84 if (regnum == -1 || regnum == HPPA_SR3_REGNUM)
85 regcache_raw_supply (regcache, HPPA_SR3_REGNUM, regs + 40 * 4);
86 if (regnum == -1 || regnum == HPPA_SR4_REGNUM)
87 regcache_raw_supply (regcache, HPPA_SR4_REGNUM, regs + 41 * 4);
88 if (regnum == -1 || regnum == HPPA_SR5_REGNUM)
89 regcache_raw_supply (regcache, HPPA_SR5_REGNUM, regs + 42 * 4);
90 if (regnum == -1 || regnum == HPPA_SR6_REGNUM)
91 regcache_raw_supply (regcache, HPPA_SR6_REGNUM, regs + 43 * 4);
92 if (regnum == -1 || regnum == HPPA_SR7_REGNUM)
93 regcache_raw_supply (regcache, HPPA_SR7_REGNUM, regs + 44 * 4);
94 if (regnum == -1 || regnum == HPPA_CR26_REGNUM)
95 regcache_raw_supply (regcache, HPPA_CR26_REGNUM, regs + 45 * 4);
96 if (regnum == -1 || regnum == HPPA_CR27_REGNUM)
97 regcache_raw_supply (regcache, HPPA_CR27_REGNUM, regs + 46 * 4);
101 if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
102 regcache_raw_supply (regcache, HPPA_SAR_REGNUM, regs);
103 if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
104 regcache_raw_supply (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 32 * 4);
105 if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
106 regcache_raw_supply (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 33 * 4);
110 /* Supply register REGNUM from the buffer specified by FPREGS and LEN
111 in the floating-point register set REGSET to register cache
112 REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
115 hppaobsd_supply_fpregset (const struct regset *regset,
116 struct regcache *regcache,
117 int regnum, const void *fpregs, size_t len)
119 struct gdbarch *gdbarch = get_regcache_arch (regcache);
120 const gdb_byte *regs = fpregs;
123 gdb_assert (len >= HPPAOBSD_SIZEOF_FPREGS);
125 for (i = HPPA_FP0_REGNUM; i <= HPPA_FP31R_REGNUM; i++)
127 if (regnum == i || regnum == -1)
128 regcache_raw_supply (regcache, i, regs + (i - HPPA_FP0_REGNUM) * 4);
132 /* OpenBSD/hppa register sets. */
134 static struct regset hppaobsd_gregset =
137 hppaobsd_supply_gregset
140 static struct regset hppaobsd_fpregset =
143 hppaobsd_supply_fpregset
146 /* Return the appropriate register set for the core section identified
147 by SECT_NAME and SECT_SIZE. */
149 static const struct regset *
150 hppaobsd_regset_from_core_section (struct gdbarch *gdbarch,
151 const char *sect_name, size_t sect_size)
153 if (strcmp (sect_name, ".reg") == 0 && sect_size >= HPPAOBSD_SIZEOF_GREGS)
154 return &hppaobsd_gregset;
156 if (strcmp (sect_name, ".reg2") == 0 && sect_size >= HPPAOBSD_SIZEOF_FPREGS)
157 return &hppaobsd_fpregset;
164 hppaobsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
166 /* Obviously OpenBSD is BSD-based. */
167 hppabsd_init_abi (info, gdbarch);
169 /* Core file support. */
170 set_gdbarch_regset_from_core_section
171 (gdbarch, hppaobsd_regset_from_core_section);
175 /* OpenBSD uses uses the traditional NetBSD core file format, even for
176 ports that use ELF. */
177 #define GDB_OSABI_NETBSD_CORE GDB_OSABI_OPENBSD_ELF
179 static enum gdb_osabi
180 hppaobsd_core_osabi_sniffer (bfd *abfd)
182 if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
183 return GDB_OSABI_NETBSD_CORE;
185 return GDB_OSABI_UNKNOWN;
189 /* Provide a prototype to silence -Wmissing-prototypes. */
190 void _initialize_hppabsd_tdep (void);
193 _initialize_hppabsd_tdep (void)
195 /* BFD doesn't set a flavour for NetBSD style a.out core files. */
196 gdbarch_register_osabi_sniffer (bfd_arch_hppa, bfd_target_unknown_flavour,
197 hppaobsd_core_osabi_sniffer);
199 gdbarch_register_osabi (bfd_arch_hppa, 0, GDB_OSABI_OPENBSD_ELF,