binutils-gdb/gdb/bfd-target.c
Tom Tromey d7a78e5c41 Change target_section_table to std::vector alias
Because target_section_table only holds a vector, and because it is
used in an "open" way, this patch makes it just be an alias for the
std::vector specialization.  This makes the code less wordy.  If we do
ever want to add more specialized behavior to this type, it's simple
enough to convert it back to a struct with the few needed methods
implied by this change.

gdb/ChangeLog
2020-10-12  Tom Tromey  <tom@tromey.com>

	* target.h (struct target_ops) <get_section_table>: Update.
	(target_get_section_table): Update.
	* target.c (target_get_section_table, target_section_by_addr)
	(memory_xfer_partial_1): Update.
	* target-section.h (target_section_table): Now an alias.
	* target-delegates.c: Rebuild.
	* target-debug.h (target_debug_print_target_section_table_p):
	Rename from target_debug_print_struct_target_section_table_p.
	* symfile.c (build_section_addr_info_from_section_table): Update.
	* solib.c (solib_map_sections, solib_contains_address_p): Update.
	* solib-svr4.c (scan_dyntag): Update.
	* solib-dsbt.c (scan_dyntag): Update.
	* remote.c (remote_target::remote_xfer_live_readonly_partial):
	Update.
	* record-full.c (record_full_core_target::xfer_partial): Update.
	* progspace.h (struct program_space) <target_sections>: Update.
	* exec.h (print_section_info): Update.
	* exec.c (exec_target::close, build_section_table)
	(add_target_sections, add_target_sections_of_objfile)
	(remove_target_sections, exec_on_vfork)
	(section_table_available_memory)
	(section_table_xfer_memory_partial)
	(exec_target::get_section_table, exec_target::xfer_partial)
	(print_section_info, set_section_command)
	(exec_set_section_address, exec_target::has_memory): Update.
	* corelow.c (core_target::build_file_mappings)
	(core_target::xfer_partial, core_target::info_proc_mappings)
	(core_target::info_proc_mappings): Update.
	* bfd-target.c (class target_bfd): Update
2020-10-12 20:18:48 -06:00

108 lines
2.6 KiB
C

/* Very simple "bfd" target, for GDB, the GNU debugger.
Copyright (C) 2003-2020 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 (struct bfd *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;
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;
}
}
target_section_table *
target_bfd::get_section_table ()
{
return &m_table;
}
target_bfd::target_bfd (struct bfd *abfd)
: m_bfd (gdb_bfd_ref_ptr::new_reference (abfd)),
m_table (build_section_table (abfd))
{
}
target_ops *
target_bfd_reopen (struct bfd *abfd)
{
return new target_bfd (abfd);
}
void
target_bfd::close ()
{
delete this;
}