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54fe9172 MK |
1 | /* Target-dependent code for NetBSD/sh. |
2 | ||
6aba47ca | 3 | Copyright (C) 2002, 2003, 2006, 2007 Free Software Foundation, Inc. |
54fe9172 | 4 | |
13a38d45 JT |
5 | Contributed by Wasabi Systems, Inc. |
6 | ||
7 | This file is part of GDB. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
197e01b6 EZ |
21 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
22 | Boston, MA 02110-1301, USA. */ | |
13a38d45 JT |
23 | |
24 | #include "defs.h" | |
25 | #include "gdbcore.h" | |
26 | #include "regcache.h" | |
27 | #include "value.h" | |
4be87837 | 28 | #include "osabi.h" |
13a38d45 | 29 | |
9964235a JT |
30 | #include "solib-svr4.h" |
31 | ||
ea5bc2a6 | 32 | #include "nbsd-tdep.h" |
ab3b8126 | 33 | #include "sh-tdep.h" |
4015edd1 | 34 | #include "shnbsd-tdep.h" |
13a38d45 JT |
35 | |
36 | /* Convert an r0-r15 register number into an offset into a ptrace | |
37 | register structure. */ | |
38 | static const int regmap[] = | |
39 | { | |
40 | (20 * 4), /* r0 */ | |
41 | (19 * 4), /* r1 */ | |
42 | (18 * 4), /* r2 */ | |
43 | (17 * 4), /* r3 */ | |
44 | (16 * 4), /* r4 */ | |
45 | (15 * 4), /* r5 */ | |
46 | (14 * 4), /* r6 */ | |
47 | (13 * 4), /* r7 */ | |
48 | (12 * 4), /* r8 */ | |
49 | (11 * 4), /* r9 */ | |
50 | (10 * 4), /* r10 */ | |
51 | ( 9 * 4), /* r11 */ | |
52 | ( 8 * 4), /* r12 */ | |
53 | ( 7 * 4), /* r13 */ | |
54 | ( 6 * 4), /* r14 */ | |
55 | ( 5 * 4), /* r15 */ | |
56 | }; | |
57 | ||
58 | #define SIZEOF_STRUCT_REG (21 * 4) | |
59 | ||
60 | void | |
20cb8cda | 61 | shnbsd_supply_reg (char *regs, int regno) |
13a38d45 | 62 | { |
20cb8cda | 63 | int i; |
13a38d45 | 64 | |
20cb8cda | 65 | if (regno == PC_REGNUM || regno == -1) |
23a6d369 | 66 | regcache_raw_supply (current_regcache, PC_REGNUM, regs + (0 * 4)); |
20cb8cda JT |
67 | |
68 | if (regno == SR_REGNUM || regno == -1) | |
23a6d369 | 69 | regcache_raw_supply (current_regcache, SR_REGNUM, regs + (1 * 4)); |
20cb8cda JT |
70 | |
71 | if (regno == PR_REGNUM || regno == -1) | |
23a6d369 | 72 | regcache_raw_supply (current_regcache, PR_REGNUM, regs + (2 * 4)); |
13a38d45 | 73 | |
20cb8cda | 74 | if (regno == MACH_REGNUM || regno == -1) |
23a6d369 | 75 | regcache_raw_supply (current_regcache, MACH_REGNUM, regs + (3 * 4)); |
13a38d45 | 76 | |
20cb8cda | 77 | if (regno == MACL_REGNUM || regno == -1) |
23a6d369 | 78 | regcache_raw_supply (current_regcache, MACL_REGNUM, regs + (4 * 4)); |
13a38d45 | 79 | |
20cb8cda JT |
80 | if ((regno >= R0_REGNUM && regno <= (R0_REGNUM + 15)) || regno == -1) |
81 | { | |
82 | for (i = R0_REGNUM; i <= (R0_REGNUM + 15); i++) | |
83 | if (regno == i || regno == -1) | |
23a6d369 AC |
84 | regcache_raw_supply (current_regcache, i, |
85 | regs + regmap[i - R0_REGNUM]); | |
20cb8cda | 86 | } |
13a38d45 JT |
87 | } |
88 | ||
89 | void | |
20cb8cda | 90 | shnbsd_fill_reg (char *regs, int regno) |
13a38d45 | 91 | { |
20cb8cda | 92 | int i; |
13a38d45 | 93 | |
20cb8cda | 94 | if (regno == PC_REGNUM || regno == -1) |
822c9732 | 95 | regcache_raw_collect (current_regcache, PC_REGNUM, regs + (0 * 4)); |
20cb8cda JT |
96 | |
97 | if (regno == SR_REGNUM || regno == -1) | |
822c9732 | 98 | regcache_raw_collect (current_regcache, SR_REGNUM, regs + (1 * 4)); |
20cb8cda JT |
99 | |
100 | if (regno == PR_REGNUM || regno == -1) | |
822c9732 | 101 | regcache_raw_collect (current_regcache, PR_REGNUM, regs + (2 * 4)); |
20cb8cda JT |
102 | |
103 | if (regno == MACH_REGNUM || regno == -1) | |
822c9732 | 104 | regcache_raw_collect (current_regcache, MACH_REGNUM, regs + (3 * 4)); |
20cb8cda JT |
105 | |
106 | if (regno == MACL_REGNUM || regno == -1) | |
822c9732 | 107 | regcache_raw_collect (current_regcache, MACL_REGNUM, regs + (4 * 4)); |
20cb8cda JT |
108 | |
109 | if ((regno >= R0_REGNUM && regno <= (R0_REGNUM + 15)) || regno == -1) | |
110 | { | |
111 | for (i = R0_REGNUM; i <= (R0_REGNUM + 15); i++) | |
112 | if (regno == i || regno == -1) | |
822c9732 AC |
113 | regcache_raw_collect (current_regcache, i, |
114 | regs + regmap[i - R0_REGNUM]); | |
20cb8cda | 115 | } |
13a38d45 JT |
116 | } |
117 | ||
13a38d45 JT |
118 | static void |
119 | fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, | |
120 | int which, CORE_ADDR ignore) | |
121 | { | |
122 | /* We get everything from the .reg section. */ | |
123 | if (which != 0) | |
124 | return; | |
125 | ||
126 | if (core_reg_size < SIZEOF_STRUCT_REG) | |
127 | { | |
8a3fe4f8 | 128 | warning (_("Wrong size register set in core file.")); |
13a38d45 JT |
129 | return; |
130 | } | |
131 | ||
132 | /* Integer registers. */ | |
20cb8cda | 133 | shnbsd_supply_reg (core_reg_sect, -1); |
13a38d45 JT |
134 | } |
135 | ||
136 | static void | |
137 | fetch_elfcore_registers (char *core_reg_sect, unsigned core_reg_size, | |
138 | int which, CORE_ADDR ignore) | |
139 | { | |
140 | switch (which) | |
141 | { | |
142 | case 0: /* Integer registers. */ | |
143 | if (core_reg_size != SIZEOF_STRUCT_REG) | |
8a3fe4f8 | 144 | warning (_("Wrong size register set in core file.")); |
13a38d45 | 145 | else |
20cb8cda | 146 | shnbsd_supply_reg (core_reg_sect, -1); |
13a38d45 JT |
147 | break; |
148 | ||
149 | default: | |
150 | /* Don't know what kind of register request this is; just ignore it. */ | |
151 | break; | |
152 | } | |
153 | } | |
154 | ||
20cb8cda | 155 | static struct core_fns shnbsd_core_fns = |
13a38d45 JT |
156 | { |
157 | bfd_target_unknown_flavour, /* core_flavour */ | |
158 | default_check_format, /* check_format */ | |
159 | default_core_sniffer, /* core_sniffer */ | |
160 | fetch_core_registers, /* core_read_registers */ | |
161 | NULL /* next */ | |
162 | }; | |
163 | ||
20cb8cda | 164 | static struct core_fns shnbsd_elfcore_fns = |
13a38d45 JT |
165 | { |
166 | bfd_target_elf_flavour, /* core_flavour */ | |
167 | default_check_format, /* check_format */ | |
168 | default_core_sniffer, /* core_sniffer */ | |
169 | fetch_elfcore_registers, /* core_read_registers */ | |
170 | NULL /* next */ | |
171 | }; | |
172 | ||
173 | static void | |
20cb8cda | 174 | shnbsd_init_abi (struct gdbarch_info info, |
13a38d45 JT |
175 | struct gdbarch *gdbarch) |
176 | { | |
177 | set_solib_svr4_fetch_link_map_offsets (gdbarch, | |
ea5bc2a6 | 178 | nbsd_ilp32_solib_svr4_fetch_link_map_offsets); |
13a38d45 JT |
179 | } |
180 | ||
181 | void | |
20cb8cda | 182 | _initialize_shnbsd_tdep (void) |
13a38d45 | 183 | { |
00e32a35 AC |
184 | deprecated_add_core_fns (&shnbsd_core_fns); |
185 | deprecated_add_core_fns (&shnbsd_elfcore_fns); | |
13a38d45 | 186 | |
05816f70 MK |
187 | gdbarch_register_osabi (bfd_arch_sh, 0, GDB_OSABI_NETBSD_ELF, |
188 | shnbsd_init_abi); | |
54fe9172 MK |
189 | gdbarch_register_osabi (bfd_arch_sh, 0, GDB_OSABI_OPENBSD_ELF, |
190 | shnbsd_init_abi); | |
13a38d45 | 191 | } |