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bb2a67773c
This changes target_section_table to wrap a std::vector. This simplifies some code, and also enables the simplifications coming in the subsequent patches. Note that for solib, I chose to have it use a pointer to a target_section_table. This is more convoluted than would be ideal, but I didn't want to convert solib to new/delete as a prerequisite for this series. gdb/ChangeLog 2020-10-12 Tom Tromey <tom@tromey.com> * target.c (target_section_by_addr, memory_xfer_partial_1): Update. * target-section.h (struct target_section_table): Use std::vector. * symfile.h (build_section_addr_info_from_section_table): Take a target_section_table. * symfile.c (build_section_addr_info_from_section_table): Take a target_section_table. * solist.h (struct so_list) <sections>: Change type. <sections_end>: Remove. * solib.c (solib_map_sections, clear_so, solib_read_symbols) (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_start, record_full_core_end): Remove. (record_full_core_sections): New global. (record_full_core_open_1, record_full_core_target::xfer_partial): Update. * exec.h (build_section_table, section_table_xfer_memory_partial) (add_target_sections): Take a target_section_table. * exec.c (exec_file_attach, clear_section_table): Update. (resize_section_table): Remove. (build_section_table, add_target_sections): Take a target_section_table. (add_target_sections_of_objfile, remove_target_sections) (exec_on_vfork): Update. (section_table_available_memory): Take a target_section_table. (section_table_read_available_memory): Update. (section_table_xfer_memory_partial): Take a target_section_table. (print_section_info, set_section_command) (exec_set_section_address, exec_target::has_memory): Update. * corelow.c (class core_target) <m_core_section_table, m_core_file_mappings>: Remove braces. <~core_target>: Remove. (core_target::core_target): Update. (core_target::~core_target): Remove. (core_target::build_file_mappings) (core_target::xfer_memory_via_mappings) (core_target::xfer_partial, core_target::info_proc_mappings): Update. * bfd-target.c (target_bfd::xfer_partial): Update. (target_bfd::target_bfd): Update. (target_bfd::~target_bfd): Remove.
108 lines
2.6 KiB
C
108 lines
2.6 KiB
C
/* Very simple "bfd" target, for GDB, the GNU debugger.
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Copyright (C) 2003-2020 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "target.h"
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#include "bfd-target.h"
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#include "exec.h"
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#include "gdb_bfd.h"
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/* A target that wraps a BFD. */
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static const target_info target_bfd_target_info = {
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"bfd",
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N_("BFD backed target"),
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N_("You should never see this")
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};
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class target_bfd : public target_ops
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{
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public:
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explicit target_bfd (struct bfd *bfd);
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const target_info &info () const override
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{ return target_bfd_target_info; }
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strata stratum () const override { return file_stratum; }
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void close () override;
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target_xfer_status
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xfer_partial (target_object object,
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const char *annex, gdb_byte *readbuf,
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const gdb_byte *writebuf,
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ULONGEST offset, ULONGEST len,
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ULONGEST *xfered_len) override;
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target_section_table *get_section_table () override;
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private:
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/* The BFD we're wrapping. */
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gdb_bfd_ref_ptr m_bfd;
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/* The section table build from the ALLOC sections in BFD. Note
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that we can't rely on extracting the BFD from a random section in
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the table, since the table can be legitimately empty. */
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struct target_section_table m_table;
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};
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target_xfer_status
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target_bfd::xfer_partial (target_object object,
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const char *annex, gdb_byte *readbuf,
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const gdb_byte *writebuf,
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ULONGEST offset, ULONGEST len,
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ULONGEST *xfered_len)
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{
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switch (object)
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{
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case TARGET_OBJECT_MEMORY:
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{
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return section_table_xfer_memory_partial (readbuf, writebuf,
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offset, len, xfered_len,
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m_table);
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}
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default:
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return TARGET_XFER_E_IO;
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}
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}
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target_section_table *
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target_bfd::get_section_table ()
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{
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return &m_table;
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}
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target_bfd::target_bfd (struct bfd *abfd)
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: m_bfd (gdb_bfd_ref_ptr::new_reference (abfd))
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{
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build_section_table (abfd, &m_table);
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}
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target_ops *
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target_bfd_reopen (struct bfd *abfd)
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{
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return new target_bfd (abfd);
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}
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void
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target_bfd::close ()
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{
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delete this;
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}
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