c016a969d1
EFI firmware determines where to load the GRUB EFI at runtime, and so the addresses of debug symbols are not known ahead of time. There is a command defined in the gdb_grub script which will load the debug symbols at the appropriate addresses, if given the application load address for GRUB. So add a command named "gdbinfo" to allow the user to print this GDB command string with the application load address on-demand. For the outputted GDB command to have any effect when entered into a GDB session, GDB should have been started with the script as an argument to the -x option or sourced into an active GDB session before running the outputted command. Documentation for the gdbinfo command is also added. Co-developed-by: Peter Jones <pjones@redhat.com> Signed-off-by: Peter Jones <pjones@redhat.com> Signed-off-by: Glenn Washburn <development@efficientek.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2022 Free Software Foundation, Inc.
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*
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* GRUB 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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*
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* GRUB 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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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* debug.c - aides for debugging the EFI application */
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#include <grub/efi/debug.h>
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#include <grub/command.h>
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#include <grub/i18n.h>
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static grub_err_t
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grub_cmd_gdbinfo (struct grub_command *cmd __attribute__ ((unused)),
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int argc __attribute__ ((unused)),
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char **args __attribute__ ((unused)))
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{
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grub_efi_print_gdb_info ();
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return 0;
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}
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void
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grub_efi_register_debug_commands (void)
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{
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grub_register_command ("gdbinfo", grub_cmd_gdbinfo, 0,
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N_("Print infomation useful for GDB debugging"));
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}
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