gdb: add declaration for _initialize_gdbarch in gdbarch.sh

[deliverable/binutils-gdb.git] / gdb / sol2-tdep.c

/* Target-dependent code for Solaris.

   Copyright (C) 2006-2020 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 "frame.h"
#include "symtab.h"
#include "inferior.h"
#include "objfiles.h"

#include "sol2-tdep.h"

CORE_ADDR
sol2_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc)
{
  struct bound_minimal_symbol msym;

  msym = lookup_minimal_symbol("elf_bndr", NULL, NULL);
  if (msym.minsym && BMSYMBOL_VALUE_ADDRESS (msym) == pc)
    return frame_unwind_caller_pc (get_current_frame ());

  return 0;
}

/* This is how we want PTIDs from Solaris core files to be
   printed.  */

std::string
sol2_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid)
{
  struct inferior *inf;
  int pid;

  /* Check whether we're printing an LWP (gdb thread) or a
     process.  */
  pid = ptid.lwp ();
  if (pid != 0)
    {
      /* A thread.  */
      return string_printf ("LWP %ld", ptid.lwp ());
    }

  /* GDB didn't use to put a NT_PSTATUS note in Solaris cores.  If
     that's missing, then we're dealing with a fake PID corelow.c made
     up.  */
  inf = find_inferior_ptid (current_inferior ()->process_target (), ptid);
  if (inf == NULL || inf->fake_pid_p)
    return "<core>";

  /* Not fake; print as usual.  */
  return normal_pid_to_str (ptid);
}