Commit | Line | Data |
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66e810cd | 1 | /* Target-specific functions for ARM running under NetBSD. |
527ca6bb MK |
2 | |
3 | Copyright 2002, 2003, 2004 Free Software Foundation, Inc. | |
66e810cd RE |
4 | |
5 | This file is part of GDB. | |
6 | ||
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 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
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. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
21 | ||
22 | #include "defs.h" | |
4be87837 | 23 | #include "osabi.h" |
66e810cd | 24 | |
527ca6bb MK |
25 | #include "gdb_string.h" |
26 | ||
66e810cd | 27 | #include "arm-tdep.h" |
9eeef8ef JT |
28 | #include "nbsd-tdep.h" |
29 | #include "solib-svr4.h" | |
66e810cd | 30 | |
9df628e0 | 31 | /* Description of the longjmp buffer. */ |
625602f2 | 32 | #define ARM_NBSD_JB_PC 24 |
7a5ea0d4 | 33 | #define ARM_NBSD_JB_ELEMENT_SIZE INT_REGISTER_SIZE |
9df628e0 | 34 | |
66e810cd RE |
35 | /* For compatibility with previous implemenations of GDB on arm/NetBSD, |
36 | override the default little-endian breakpoint. */ | |
37 | static const char arm_nbsd_arm_le_breakpoint[] = {0x11, 0x00, 0x00, 0xe6}; | |
38 | ||
41d39a95 RE |
39 | static int |
40 | arm_netbsd_aout_in_solib_call_trampoline (CORE_ADDR pc, char *name) | |
41 | { | |
42 | if (strcmp (name, "_PROCEDURE_LINKAGE_TABLE_") == 0) | |
43 | return 1; | |
44 | ||
45 | return 0; | |
46 | } | |
47 | ||
66e810cd RE |
48 | static void |
49 | arm_netbsd_init_abi_common (struct gdbarch_info info, | |
50 | struct gdbarch *gdbarch) | |
51 | { | |
52 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
53 | ||
54 | tdep->lowest_pc = 0x8000; | |
55 | tdep->arm_breakpoint = arm_nbsd_arm_le_breakpoint; | |
56 | tdep->arm_breakpoint_size = sizeof (arm_nbsd_arm_le_breakpoint); | |
9df628e0 | 57 | |
625602f2 RE |
58 | tdep->jb_pc = ARM_NBSD_JB_PC; |
59 | tdep->jb_elt_size = ARM_NBSD_JB_ELEMENT_SIZE; | |
66e810cd RE |
60 | } |
61 | ||
62 | static void | |
63 | arm_netbsd_aout_init_abi (struct gdbarch_info info, | |
64 | struct gdbarch *gdbarch) | |
65 | { | |
08216dd7 RE |
66 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
67 | ||
66e810cd | 68 | arm_netbsd_init_abi_common (info, gdbarch); |
41d39a95 RE |
69 | |
70 | set_gdbarch_in_solib_call_trampoline | |
71 | (gdbarch, arm_netbsd_aout_in_solib_call_trampoline); | |
17c0759e | 72 | tdep->fp_model = ARM_FLOAT_SOFT_FPA; |
66e810cd RE |
73 | } |
74 | ||
75 | static void | |
76 | arm_netbsd_elf_init_abi (struct gdbarch_info info, | |
77 | struct gdbarch *gdbarch) | |
78 | { | |
08216dd7 RE |
79 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
80 | ||
66e810cd | 81 | arm_netbsd_init_abi_common (info, gdbarch); |
08216dd7 | 82 | |
9eeef8ef JT |
83 | set_solib_svr4_fetch_link_map_offsets (gdbarch, |
84 | nbsd_ilp32_solib_svr4_fetch_link_map_offsets); | |
85 | ||
08216dd7 | 86 | tdep->fp_model = ARM_FLOAT_SOFT_VFP; |
66e810cd RE |
87 | } |
88 | ||
70f80edf JT |
89 | static enum gdb_osabi |
90 | arm_netbsd_aout_osabi_sniffer (bfd *abfd) | |
91 | { | |
92 | if (strcmp (bfd_get_target (abfd), "a.out-arm-netbsd") == 0) | |
93 | return GDB_OSABI_NETBSD_AOUT; | |
94 | ||
95 | return GDB_OSABI_UNKNOWN; | |
96 | } | |
97 | ||
66e810cd RE |
98 | void |
99 | _initialize_arm_netbsd_tdep (void) | |
100 | { | |
70f80edf JT |
101 | gdbarch_register_osabi_sniffer (bfd_arch_arm, bfd_target_aout_flavour, |
102 | arm_netbsd_aout_osabi_sniffer); | |
103 | ||
05816f70 | 104 | gdbarch_register_osabi (bfd_arch_arm, 0, GDB_OSABI_NETBSD_AOUT, |
70f80edf | 105 | arm_netbsd_aout_init_abi); |
05816f70 | 106 | gdbarch_register_osabi (bfd_arch_arm, 0, GDB_OSABI_NETBSD_ELF, |
70f80edf | 107 | arm_netbsd_elf_init_abi); |
66e810cd | 108 | } |