mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-21 01:12:32 +08:00
1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
131 lines
4.2 KiB
C
131 lines
4.2 KiB
C
/* Common code for targets with the none ABI (bare-metal), but where the
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BFD library is build with ELF support.
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Copyright (C) 2020-2024 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 "elf-none-tdep.h"
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#include "regset.h"
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#include "elf-bfd.h"
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#include "inferior.h"
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#include "regcache.h"
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#include "gdbarch.h"
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#include "gcore.h"
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#include "gcore-elf.h"
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/* Build the note section for a corefile, and return it in a malloc
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buffer. Currently this just dumps all available registers for each
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thread. */
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static gdb::unique_xmalloc_ptr<char>
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elf_none_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd,
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int *note_size)
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{
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gdb::unique_xmalloc_ptr<char> note_data;
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/* Add note information about the executable and its arguments. */
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std::string fname;
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std::string psargs;
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static const size_t fname_len = 16;
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static const size_t psargs_len = 80;
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if (get_exec_file (0))
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{
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const char *exe = get_exec_file (0);
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fname = lbasename (exe);
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psargs = std::string (exe);
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const std::string &infargs = current_inferior ()->args ();
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if (!infargs.empty ())
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psargs += ' ' + infargs;
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/* All existing targets that handle writing out prpsinfo expect the
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fname and psargs strings to be at least 16 and 80 characters long
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respectively, including a null terminator at the end. Resize to
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the expected length minus one to ensure there is a null within the
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required length. */
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fname.resize (fname_len - 1);
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psargs.resize (psargs_len - 1);
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}
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/* Resize the buffers up to their required lengths. This will fill any
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remaining space with the null character. */
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fname.resize (fname_len);
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psargs.resize (psargs_len);
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/* Now write out the prpsinfo structure. */
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note_data.reset (elfcore_write_prpsinfo (obfd, note_data.release (),
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note_size, fname.c_str (),
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psargs.c_str ()));
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if (note_data == nullptr)
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return nullptr;
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/* Thread register information. */
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try
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{
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update_thread_list ();
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}
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catch (const gdb_exception_error &e)
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{
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exception_print (gdb_stderr, e);
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}
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/* Like the Linux kernel, prefer dumping the signalled thread first.
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"First thread" is what tools use to infer the signalled thread. */
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thread_info *signalled_thr = gcore_find_signalled_thread ();
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/* All threads are reported as having been stopped by the same signal
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that stopped SIGNALLED_THR. */
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gdb_signal stop_signal;
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if (signalled_thr != nullptr)
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stop_signal = signalled_thr->stop_signal ();
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else
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stop_signal = GDB_SIGNAL_0;
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if (signalled_thr != nullptr)
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gcore_elf_build_thread_register_notes (gdbarch, signalled_thr,
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stop_signal, obfd, ¬e_data,
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note_size);
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for (thread_info *thr : current_inferior ()->non_exited_threads ())
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{
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if (thr == signalled_thr)
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continue;
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gcore_elf_build_thread_register_notes (gdbarch, thr, stop_signal, obfd,
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¬e_data, note_size);
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}
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/* Include the target description when possible. Some architectures
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allow for per-thread gdbarch so we should really be emitting a tdesc
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per-thread, however, we don't currently support reading in a
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per-thread tdesc, so just emit the tdesc for the signalled thread. */
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gdbarch = target_thread_architecture (signalled_thr->ptid);
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gcore_elf_make_tdesc_note (gdbarch, obfd, ¬e_data, note_size);
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return note_data;
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}
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/* See none-tdep.h. */
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void
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elf_none_init_abi (struct gdbarch *gdbarch)
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{
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/* Default core file support. */
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set_gdbarch_make_corefile_notes (gdbarch, elf_none_make_corefile_notes);
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}
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