1 /* Target-specific functions for ARM running under NetBSD.
3 Copyright 2002, 2003, 2004 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 2 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, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
25 #include "gdb_string.h"
28 #include "nbsd-tdep.h"
29 #include "solib-svr4.h"
31 /* Description of the longjmp buffer. */
32 #define ARM_NBSD_JB_PC 24
33 #define ARM_NBSD_JB_ELEMENT_SIZE INT_REGISTER_SIZE
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 static const char arm_nbsd_arm_be_breakpoint
[] = {0xe6, 0x00, 0x00, 0x11};
39 static const char arm_nbsd_thumb_le_breakpoint
[] = {0xfe, 0xde};
40 static const char arm_nbsd_thumb_be_breakpoint
[] = {0xde, 0xfe};
43 arm_netbsd_aout_in_solib_call_trampoline (CORE_ADDR pc
, char *name
)
45 if (strcmp (name
, "_PROCEDURE_LINKAGE_TABLE_") == 0)
52 arm_netbsd_init_abi_common (struct gdbarch_info info
,
53 struct gdbarch
*gdbarch
)
55 struct gdbarch_tdep
*tdep
= gdbarch_tdep (gdbarch
);
57 tdep
->lowest_pc
= 0x8000;
58 switch (info
.byte_order
)
60 case BFD_ENDIAN_LITTLE
:
61 tdep
->arm_breakpoint
= arm_nbsd_arm_le_breakpoint
;
62 tdep
->thumb_breakpoint
= arm_nbsd_thumb_le_breakpoint
;
63 tdep
->arm_breakpoint_size
= sizeof (arm_nbsd_arm_le_breakpoint
);
64 tdep
->thumb_breakpoint_size
= sizeof (arm_nbsd_thumb_le_breakpoint
);
68 tdep
->arm_breakpoint
= arm_nbsd_arm_be_breakpoint
;
69 tdep
->thumb_breakpoint
= arm_nbsd_thumb_be_breakpoint
;
70 tdep
->arm_breakpoint_size
= sizeof (arm_nbsd_arm_be_breakpoint
);
71 tdep
->thumb_breakpoint_size
= sizeof (arm_nbsd_thumb_be_breakpoint
);
75 internal_error (__FILE__
, __LINE__
,
76 "arm_gdbarch_init: bad byte order for float format");
79 tdep
->jb_pc
= ARM_NBSD_JB_PC
;
80 tdep
->jb_elt_size
= ARM_NBSD_JB_ELEMENT_SIZE
;
84 arm_netbsd_aout_init_abi (struct gdbarch_info info
,
85 struct gdbarch
*gdbarch
)
87 struct gdbarch_tdep
*tdep
= gdbarch_tdep (gdbarch
);
89 arm_netbsd_init_abi_common (info
, gdbarch
);
91 set_gdbarch_in_solib_call_trampoline
92 (gdbarch
, arm_netbsd_aout_in_solib_call_trampoline
);
93 tdep
->fp_model
= ARM_FLOAT_SOFT_FPA
;
97 arm_netbsd_elf_init_abi (struct gdbarch_info info
,
98 struct gdbarch
*gdbarch
)
100 struct gdbarch_tdep
*tdep
= gdbarch_tdep (gdbarch
);
102 arm_netbsd_init_abi_common (info
, gdbarch
);
104 set_solib_svr4_fetch_link_map_offsets (gdbarch
,
105 nbsd_ilp32_solib_svr4_fetch_link_map_offsets
);
107 tdep
->fp_model
= ARM_FLOAT_SOFT_VFP
;
110 static enum gdb_osabi
111 arm_netbsd_aout_osabi_sniffer (bfd
*abfd
)
113 if (strcmp (bfd_get_target (abfd
), "a.out-arm-netbsd") == 0)
114 return GDB_OSABI_NETBSD_AOUT
;
116 return GDB_OSABI_UNKNOWN
;
120 _initialize_arm_netbsd_tdep (void)
122 gdbarch_register_osabi_sniffer (bfd_arch_arm
, bfd_target_aout_flavour
,
123 arm_netbsd_aout_osabi_sniffer
);
125 gdbarch_register_osabi (bfd_arch_arm
, 0, GDB_OSABI_NETBSD_AOUT
,
126 arm_netbsd_aout_init_abi
);
127 gdbarch_register_osabi (bfd_arch_arm
, 0, GDB_OSABI_NETBSD_ELF
,
128 arm_netbsd_elf_init_abi
);