1 /* Very simple "bfd" target, for GDB, the GNU debugger.
3 Copyright (C) 2003-2020 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"
26 /* A target that wraps a BFD. */
28 static const target_info target_bfd_target_info
= {
30 N_("BFD backed target"),
31 N_("You should never see this")
34 class target_bfd
: public target_ops
37 explicit target_bfd (struct bfd
*bfd
);
38 ~target_bfd () override
;
40 const target_info
&info () const override
41 { return target_bfd_target_info
; }
43 strata
stratum () const override
{ return file_stratum
; }
45 void close () override
;
48 xfer_partial (target_object object
,
49 const char *annex
, gdb_byte
*readbuf
,
50 const gdb_byte
*writebuf
,
51 ULONGEST offset
, ULONGEST len
,
52 ULONGEST
*xfered_len
) override
;
54 target_section_table
*get_section_table () override
;
57 /* The BFD we're wrapping. */
58 gdb_bfd_ref_ptr m_bfd
;
60 /* The section table build from the ALLOC sections in BFD. Note
61 that we can't rely on extracting the BFD from a random section in
62 the table, since the table can be legitimately empty. */
63 struct target_section_table m_table
;
67 target_bfd::xfer_partial (target_object object
,
68 const char *annex
, gdb_byte
*readbuf
,
69 const gdb_byte
*writebuf
,
70 ULONGEST offset
, ULONGEST len
,
75 case TARGET_OBJECT_MEMORY
:
77 return section_table_xfer_memory_partial (readbuf
, writebuf
,
78 offset
, len
, xfered_len
,
84 return TARGET_XFER_E_IO
;
88 target_section_table
*
89 target_bfd::get_section_table ()
94 target_bfd::target_bfd (struct bfd
*abfd
)
95 : m_bfd (gdb_bfd_ref_ptr::new_reference (abfd
))
97 m_table
.sections
= NULL
;
98 m_table
.sections_end
= NULL
;
99 build_section_table (abfd
, &m_table
.sections
, &m_table
.sections_end
);
102 target_bfd::~target_bfd ()
104 xfree (m_table
.sections
);
108 target_bfd_reopen (struct bfd
*abfd
)
110 return new target_bfd (abfd
);