1 /* Very simple "bfd" target, for GDB, the GNU debugger.
3 Copyright (C) 2003-2019 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);