mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +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.
94 lines
3.0 KiB
C
94 lines
3.0 KiB
C
/* Copyright (C) 2016-2024 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 "objfiles.h"
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#include "arm-tdep.h"
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#include "osabi.h"
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/* The gdbarch_register_osabi handler for ARM PikeOS; it performs
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the gdbarch initialization for that platform. */
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static void
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arm_pikeos_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
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{
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/* Single stepping. */
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set_gdbarch_software_single_step (gdbarch, arm_software_single_step);
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}
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/* The ARM PikeOS OSABI sniffer (see gdbarch_register_osabi_sniffer).
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Returns GDB_OSABI_PIKEOS if the given BFD is a PikeOS binary,
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GDB_OSABI_UNKNOWN otherwise. */
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static enum gdb_osabi
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arm_pikeos_osabi_sniffer (bfd *abfd)
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{
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long number_of_symbols;
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long i;
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int pikeos_stack_found = 0;
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int pikeos_stack_size_found = 0;
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/* The BFD target of PikeOS is really just standard elf, so we
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cannot use it to detect this variant. The only common thing that
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may be found in PikeOS modules are symbols _vm_stack/__p4_stack and
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_vm_stack_size/__p4_stack_end. They are used to specify the stack
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location and size; and defined by the default linker script.
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OS ABI sniffers are called before the minimal symtabs are
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created. So inspect the symbol table using BFD. */
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long storage_needed = bfd_get_symtab_upper_bound (abfd);
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if (storage_needed <= 0)
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return GDB_OSABI_UNKNOWN;
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gdb::unique_xmalloc_ptr<asymbol *> symbol_table
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((asymbol **) xmalloc (storage_needed));
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number_of_symbols = bfd_canonicalize_symtab (abfd, symbol_table.get ());
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if (number_of_symbols <= 0)
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return GDB_OSABI_UNKNOWN;
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for (i = 0; i < number_of_symbols; i++)
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{
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const char *name = bfd_asymbol_name (symbol_table.get ()[i]);
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if (strcmp (name, "_vm_stack") == 0
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|| strcmp (name, "__p4_stack") == 0)
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pikeos_stack_found = 1;
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if (strcmp (name, "_vm_stack_size") == 0
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|| strcmp (name, "__p4_stack_end") == 0)
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pikeos_stack_size_found = 1;
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}
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if (pikeos_stack_found && pikeos_stack_size_found)
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return GDB_OSABI_PIKEOS;
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else
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return GDB_OSABI_UNKNOWN;
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}
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void _initialize_arm_pikeos_tdep ();
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void
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_initialize_arm_pikeos_tdep ()
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{
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/* Register the sniffer for the PikeOS targets. */
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gdbarch_register_osabi_sniffer (bfd_arch_arm, bfd_target_elf_flavour,
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arm_pikeos_osabi_sniffer);
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gdbarch_register_osabi (bfd_arch_arm, 0, GDB_OSABI_PIKEOS,
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arm_pikeos_init_abi);
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}
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