OpenCores
URL https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk

Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.1/] [gdb/] [armnbsd-tdep.c] - Blame information for rev 227

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 227 jeremybenn
/* Target-dependent code for NetBSD/arm.
2
 
3
   Copyright (C) 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010
4
   Free Software Foundation, Inc.
5
 
6
   This file is part of GDB.
7
 
8
   This program is free software; you can redistribute it and/or modify
9
   it under the terms of the GNU General Public License as published by
10
   the Free Software Foundation; either version 3 of the License, or
11
   (at your option) any later version.
12
 
13
   This program is distributed in the hope that it will be useful,
14
   but WITHOUT ANY WARRANTY; without even the implied warranty of
15
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16
   GNU General Public License for more details.
17
 
18
   You should have received a copy of the GNU General Public License
19
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
20
 
21
#include "defs.h"
22
#include "osabi.h"
23
 
24
#include "gdb_string.h"
25
 
26
#include "arm-tdep.h"
27
#include "solib-svr4.h"
28
 
29
/* Description of the longjmp buffer.  */
30
#define ARM_NBSD_JB_PC 24
31
#define ARM_NBSD_JB_ELEMENT_SIZE INT_REGISTER_SIZE
32
 
33
/* For compatibility with previous implemenations of GDB on arm/NetBSD,
34
   override the default little-endian breakpoint.  */
35
static const char arm_nbsd_arm_le_breakpoint[] = {0x11, 0x00, 0x00, 0xe6};
36
static const char arm_nbsd_arm_be_breakpoint[] = {0xe6, 0x00, 0x00, 0x11};
37
static const char arm_nbsd_thumb_le_breakpoint[] = {0xfe, 0xde};
38
static const char arm_nbsd_thumb_be_breakpoint[] = {0xde, 0xfe};
39
 
40
static void
41
arm_netbsd_init_abi_common (struct gdbarch_info info,
42
                            struct gdbarch *gdbarch)
43
{
44
  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
45
 
46
  tdep->lowest_pc = 0x8000;
47
  switch (info.byte_order)
48
    {
49
    case BFD_ENDIAN_LITTLE:
50
      tdep->arm_breakpoint = arm_nbsd_arm_le_breakpoint;
51
      tdep->thumb_breakpoint = arm_nbsd_thumb_le_breakpoint;
52
      tdep->arm_breakpoint_size = sizeof (arm_nbsd_arm_le_breakpoint);
53
      tdep->thumb_breakpoint_size = sizeof (arm_nbsd_thumb_le_breakpoint);
54
      break;
55
 
56
    case BFD_ENDIAN_BIG:
57
      tdep->arm_breakpoint = arm_nbsd_arm_be_breakpoint;
58
      tdep->thumb_breakpoint = arm_nbsd_thumb_be_breakpoint;
59
      tdep->arm_breakpoint_size = sizeof (arm_nbsd_arm_be_breakpoint);
60
      tdep->thumb_breakpoint_size = sizeof (arm_nbsd_thumb_be_breakpoint);
61
      break;
62
 
63
    default:
64
      internal_error (__FILE__, __LINE__,
65
                      _("arm_gdbarch_init: bad byte order for float format"));
66
    }
67
 
68
  tdep->jb_pc = ARM_NBSD_JB_PC;
69
  tdep->jb_elt_size = ARM_NBSD_JB_ELEMENT_SIZE;
70
 
71
  /* Single stepping.  */
72
  set_gdbarch_software_single_step (gdbarch, arm_software_single_step);
73
}
74
 
75
static void
76
arm_netbsd_aout_init_abi (struct gdbarch_info info,
77
                          struct gdbarch *gdbarch)
78
{
79
  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
80
 
81
  arm_netbsd_init_abi_common (info, gdbarch);
82
  if (tdep->fp_model == ARM_FLOAT_AUTO)
83
    tdep->fp_model = ARM_FLOAT_SOFT_FPA;
84
}
85
 
86
static void
87
arm_netbsd_elf_init_abi (struct gdbarch_info info,
88
                         struct gdbarch *gdbarch)
89
{
90
  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
91
 
92
  arm_netbsd_init_abi_common (info, gdbarch);
93
  if (tdep->fp_model == ARM_FLOAT_AUTO)
94
    tdep->fp_model = ARM_FLOAT_SOFT_VFP;
95
 
96
  /* NetBSD ELF uses SVR4-style shared libraries.  */
97
  set_solib_svr4_fetch_link_map_offsets
98
    (gdbarch, svr4_ilp32_fetch_link_map_offsets);
99
}
100
 
101
static enum gdb_osabi
102
arm_netbsd_aout_osabi_sniffer (bfd *abfd)
103
{
104
  if (strcmp (bfd_get_target (abfd), "a.out-arm-netbsd") == 0)
105
    return GDB_OSABI_NETBSD_AOUT;
106
 
107
  return GDB_OSABI_UNKNOWN;
108
}
109
 
110
/* Provide a prototype to silence -Wmissing-prototypes.  */
111
extern initialize_file_ftype _initialize_arm_netbsd_tdep;
112
 
113
void
114
_initialize_arm_netbsd_tdep (void)
115
{
116
  gdbarch_register_osabi_sniffer (bfd_arch_arm, bfd_target_aout_flavour,
117
                                  arm_netbsd_aout_osabi_sniffer);
118
 
119
  gdbarch_register_osabi (bfd_arch_arm, 0, GDB_OSABI_NETBSD_AOUT,
120
                          arm_netbsd_aout_init_abi);
121
  gdbarch_register_osabi (bfd_arch_arm, 0, GDB_OSABI_NETBSD_ELF,
122
                          arm_netbsd_elf_init_abi);
123
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.