| /* Very simple "bfd" target, for GDB, the GNU debugger. |
| |
| Copyright (C) 2003-2021 Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| |
| #include "defs.h" |
| #include "target.h" |
| #include "bfd-target.h" |
| #include "exec.h" |
| #include "gdb_bfd.h" |
| |
| /* A target that wraps a BFD. */ |
| |
| static const target_info target_bfd_target_info = { |
| "bfd", |
| N_("BFD backed target"), |
| N_("You should never see this") |
| }; |
| |
| class target_bfd : public target_ops |
| { |
| public: |
| explicit target_bfd (const gdb_bfd_ref_ptr &bfd); |
| |
| const target_info &info () const override |
| { return target_bfd_target_info; } |
| |
| strata stratum () const override { return file_stratum; } |
| |
| void close () override; |
| |
| target_xfer_status |
| xfer_partial (target_object object, |
| const char *annex, gdb_byte *readbuf, |
| const gdb_byte *writebuf, |
| ULONGEST offset, ULONGEST len, |
| ULONGEST *xfered_len) override; |
| |
| const target_section_table *get_section_table () override; |
| |
| private: |
| /* The BFD we're wrapping. */ |
| gdb_bfd_ref_ptr m_bfd; |
| |
| /* The section table build from the ALLOC sections in BFD. Note |
| that we can't rely on extracting the BFD from a random section in |
| the table, since the table can be legitimately empty. */ |
| target_section_table m_table; |
| }; |
| |
| target_xfer_status |
| target_bfd::xfer_partial (target_object object, |
| const char *annex, gdb_byte *readbuf, |
| const gdb_byte *writebuf, |
| ULONGEST offset, ULONGEST len, |
| ULONGEST *xfered_len) |
| { |
| switch (object) |
| { |
| case TARGET_OBJECT_MEMORY: |
| { |
| return section_table_xfer_memory_partial (readbuf, writebuf, |
| offset, len, xfered_len, |
| m_table); |
| } |
| default: |
| return TARGET_XFER_E_IO; |
| } |
| } |
| |
| const target_section_table * |
| target_bfd::get_section_table () |
| { |
| return &m_table; |
| } |
| |
| target_bfd::target_bfd (const gdb_bfd_ref_ptr &abfd) |
| : m_bfd (abfd), |
| m_table (build_section_table (abfd.get ())) |
| { |
| } |
| |
| target_ops * |
| target_bfd_reopen (const gdb_bfd_ref_ptr &abfd) |
| { |
| return new target_bfd (abfd); |
| } |
| |
| void |
| target_bfd::close () |
| { |
| delete this; |
| } |