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66e810cd RE |
1 | /* Target-specific functions for ARM running under NetBSD. |
2 | Copyright 2002 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GDB. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | #include "defs.h" | |
22 | ||
23 | #include "arm-tdep.h" | |
24 | ||
9df628e0 RE |
25 | /* Description of the longjmp buffer. */ |
26 | #define JB_PC 24 | |
27 | #define JB_ELEMENT_SIZE INT_REGISTER_RAW_SIZE | |
28 | ||
66e810cd RE |
29 | /* For compatibility with previous implemenations of GDB on arm/NetBSD, |
30 | override the default little-endian breakpoint. */ | |
31 | static const char arm_nbsd_arm_le_breakpoint[] = {0x11, 0x00, 0x00, 0xe6}; | |
32 | ||
33 | static void | |
34 | arm_netbsd_init_abi_common (struct gdbarch_info info, | |
35 | struct gdbarch *gdbarch) | |
36 | { | |
37 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
38 | ||
39 | tdep->lowest_pc = 0x8000; | |
40 | tdep->arm_breakpoint = arm_nbsd_arm_le_breakpoint; | |
41 | tdep->arm_breakpoint_size = sizeof (arm_nbsd_arm_le_breakpoint); | |
9df628e0 RE |
42 | |
43 | tdep->jb_pc = JB_PC; | |
44 | tdep->jb_elt_size = JB_ELEMENT_SIZE; | |
66e810cd RE |
45 | } |
46 | ||
47 | static void | |
48 | arm_netbsd_aout_init_abi (struct gdbarch_info info, | |
49 | struct gdbarch *gdbarch) | |
50 | { | |
51 | arm_netbsd_init_abi_common (info, gdbarch); | |
52 | } | |
53 | ||
54 | static void | |
55 | arm_netbsd_elf_init_abi (struct gdbarch_info info, | |
56 | struct gdbarch *gdbarch) | |
57 | { | |
58 | arm_netbsd_init_abi_common (info, gdbarch); | |
59 | } | |
60 | ||
61 | void | |
62 | _initialize_arm_netbsd_tdep (void) | |
63 | { | |
64 | arm_gdbarch_register_os_abi (ARM_ABI_NETBSD_AOUT, arm_netbsd_aout_init_abi); | |
65 | arm_gdbarch_register_os_abi (ARM_ABI_NETBSD_ELF, arm_netbsd_elf_init_abi); | |
66 | } |