1 /* Very simple "bfd" target, for GDB, the GNU debugger.
3 Copyright (C) 2003, 2005, 2007, 2008 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 3 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, see <http://www.gnu.org/licenses/>. */
22 #include "bfd-target.h"
23 #include "gdb_assert.h"
24 #include "gdb_string.h"
26 /* Locate all mappable sections of a BFD file, filling in a target
29 struct section_closure
31 struct section_table
*end
;
35 add_to_section_table (struct bfd
*abfd
, struct bfd_section
*asect
,
38 struct section_closure
*pp
= closure
;
41 /* NOTE: cagney/2003-10-22: Is this pruning useful? */
42 aflag
= bfd_get_section_flags (abfd
, asect
);
43 if (!(aflag
& SEC_ALLOC
))
45 if (bfd_section_size (abfd
, asect
) == 0)
48 pp
->end
->the_bfd_section
= asect
;
49 pp
->end
->addr
= bfd_section_vma (abfd
, asect
);
50 pp
->end
->endaddr
= pp
->end
->addr
+ bfd_section_size (abfd
, asect
);
55 build_target_sections_from_bfd (struct target_ops
*targ
, struct bfd
*abfd
)
58 struct section_table
*start
;
59 struct section_closure cl
;
61 count
= bfd_count_sections (abfd
);
62 target_resize_to_sections (targ
, count
);
63 start
= targ
->to_sections
;
64 cl
.end
= targ
->to_sections
;
65 bfd_map_over_sections (abfd
, add_to_section_table
, &cl
);
66 gdb_assert (cl
.end
- start
<= count
);
70 target_bfd_xfer_partial (struct target_ops
*ops
,
71 enum target_object object
,
72 const char *annex
, gdb_byte
*readbuf
,
73 const gdb_byte
*writebuf
,
74 ULONGEST offset
, LONGEST len
)
78 case TARGET_OBJECT_MEMORY
:
80 struct section_table
*s
= target_section_by_addr (ops
, offset
);
83 /* If the length extends beyond the section, truncate it. Be
84 careful to not suffer from overflow (wish S contained a
86 if ((offset
- s
->addr
+ len
) > (s
->endaddr
- s
->addr
))
87 len
= (s
->endaddr
- s
->addr
) - (offset
- s
->addr
);
89 && !bfd_get_section_contents (s
->bfd
, s
->the_bfd_section
,
90 readbuf
, offset
- s
->addr
, len
))
96 /* FIXME: cagney/2003-10-31: The BFD interface doesn't yet
97 take a const buffer. */
99 && !bfd_set_section_contents (s
->bfd
, s
->the_bfd_section
,
100 writebuf
, offset
- s
->addr
, len
))
111 target_bfd_xclose (struct target_ops
*t
, int quitting
)
113 bfd_close (t
->to_data
);
114 xfree (t
->to_sections
);
119 target_bfd_reopen (struct bfd
*bfd
)
121 struct target_ops
*t
= XZALLOC (struct target_ops
);
122 t
->to_shortname
= "bfd";
123 t
->to_longname
= _("BFD backed target");
124 t
->to_doc
= _("You should never see this");
125 t
->to_xfer_partial
= target_bfd_xfer_partial
;
126 t
->to_xclose
= target_bfd_xclose
;
128 build_target_sections_from_bfd (t
, bfd
);
This page took 0.031846 seconds and 4 git commands to generate.