1 /* Target-dependent code for OpenBSD/hppa
3 Copyright (C) 2004-2016 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 "hppa-tdep.h"
26 #include "hppa-bsd-tdep.h"
28 /* Core file support. */
30 /* Sizeof `struct reg' in <machine/reg.h>. */
31 #define HPPAOBSD_SIZEOF_GREGS (34 * 4) /* OpenBSD 5.1 and earlier. */
32 #define HPPANBSD_SIZEOF_GREGS (46 * 4) /* NetBSD and OpenBSD 5.2 and later. */
34 /* Sizeof `struct fpreg' in <machine/reg.h>. */
35 #define HPPAOBSD_SIZEOF_FPREGS (32 * 8)
37 /* Supply register REGNUM from the buffer specified by GREGS and LEN
38 in the general-purpose register set REGSET to register cache
39 REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
42 hppaobsd_supply_gregset (const struct regset *regset,
43 struct regcache *regcache,
44 int regnum, const void *gregs, size_t len)
46 gdb_byte zero[4] = { 0 };
47 const gdb_byte *regs = (const gdb_byte *) gregs;
51 gdb_assert (len >= HPPAOBSD_SIZEOF_GREGS);
53 if (regnum == -1 || regnum == HPPA_R0_REGNUM)
54 regcache_raw_supply (regcache, HPPA_R0_REGNUM, &zero);
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 (len >= HPPANBSD_SIZEOF_GREGS)
63 if (regnum == -1 || regnum == HPPA_IPSW_REGNUM)
64 regcache_raw_supply (regcache, HPPA_IPSW_REGNUM, regs);
65 if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
66 regcache_raw_supply (regcache, HPPA_SAR_REGNUM, regs + 32 * 4);
67 if (regnum == -1 || regnum == HPPA_PCSQ_HEAD_REGNUM)
68 regcache_raw_supply (regcache, HPPA_PCSQ_HEAD_REGNUM, regs + 33 * 4);
69 if (regnum == -1 || regnum == HPPA_PCSQ_TAIL_REGNUM)
70 regcache_raw_supply (regcache, HPPA_PCSQ_TAIL_REGNUM, regs + 34 * 4);
71 if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
72 regcache_raw_supply (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 35 * 4);
73 if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
74 regcache_raw_supply (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 36 * 4);
75 if (regnum == -1 || regnum == HPPA_SR0_REGNUM)
76 regcache_raw_supply (regcache, HPPA_SR0_REGNUM, regs + 37 * 4);
77 if (regnum == -1 || regnum == HPPA_SR1_REGNUM)
78 regcache_raw_supply (regcache, HPPA_SR1_REGNUM, regs + 38 * 4);
79 if (regnum == -1 || regnum == HPPA_SR2_REGNUM)
80 regcache_raw_supply (regcache, HPPA_SR2_REGNUM, regs + 39 * 4);
81 if (regnum == -1 || regnum == HPPA_SR3_REGNUM)
82 regcache_raw_supply (regcache, HPPA_SR3_REGNUM, regs + 40 * 4);
83 if (regnum == -1 || regnum == HPPA_SR4_REGNUM)
84 regcache_raw_supply (regcache, HPPA_SR4_REGNUM, regs + 41 * 4);
85 if (regnum == -1 || regnum == HPPA_SR5_REGNUM)
86 regcache_raw_supply (regcache, HPPA_SR5_REGNUM, regs + 42 * 4);
87 if (regnum == -1 || regnum == HPPA_SR6_REGNUM)
88 regcache_raw_supply (regcache, HPPA_SR6_REGNUM, regs + 43 * 4);
89 if (regnum == -1 || regnum == HPPA_SR7_REGNUM)
90 regcache_raw_supply (regcache, HPPA_SR7_REGNUM, regs + 44 * 4);
91 if (regnum == -1 || regnum == HPPA_CR26_REGNUM)
92 regcache_raw_supply (regcache, HPPA_CR26_REGNUM, regs + 45 * 4);
93 if (regnum == -1 || regnum == HPPA_CR27_REGNUM)
94 regcache_raw_supply (regcache, HPPA_CR27_REGNUM, regs + 46 * 4);
98 if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
99 regcache_raw_supply (regcache, HPPA_SAR_REGNUM, regs);
100 if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
101 regcache_raw_supply (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 32 * 4);
102 if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
103 regcache_raw_supply (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 33 * 4);
107 /* Supply register REGNUM from the buffer specified by FPREGS and LEN
108 in the floating-point register set REGSET to register cache
109 REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
112 hppaobsd_supply_fpregset (const struct regset *regset,
113 struct regcache *regcache,
114 int regnum, const void *fpregs, size_t len)
116 const gdb_byte *regs = (const gdb_byte *) fpregs;
119 gdb_assert (len >= HPPAOBSD_SIZEOF_FPREGS);
121 for (i = HPPA_FP0_REGNUM; i <= HPPA_FP31R_REGNUM; i++)
123 if (regnum == i || regnum == -1)
124 regcache_raw_supply (regcache, i, regs + (i - HPPA_FP0_REGNUM) * 4);
128 /* OpenBSD/hppa register sets. */
130 static const struct regset hppaobsd_gregset =
133 hppaobsd_supply_gregset,
138 static const struct regset hppaobsd_fpregset =
141 hppaobsd_supply_fpregset
144 /* Iterate over supported core file register note sections. */
147 hppaobsd_iterate_over_regset_sections (struct gdbarch *gdbarch,
148 iterate_over_regset_sections_cb *cb,
150 const struct regcache *regcache)
152 cb (".reg", HPPAOBSD_SIZEOF_GREGS, &hppaobsd_gregset, NULL, cb_data);
153 cb (".reg2", HPPAOBSD_SIZEOF_FPREGS, &hppaobsd_fpregset, NULL, cb_data);
158 hppaobsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
160 /* Obviously OpenBSD is BSD-based. */
161 hppabsd_init_abi (info, gdbarch);
163 /* Core file support. */
164 set_gdbarch_iterate_over_regset_sections
165 (gdbarch, hppaobsd_iterate_over_regset_sections);
169 /* Provide a prototype to silence -Wmissing-prototypes. */
170 void _initialize_hppabsd_tdep (void);
173 _initialize_hppabsd_tdep (void)
175 gdbarch_register_osabi (bfd_arch_hppa, 0, GDB_OSABI_OPENBSD,