Delegate opcodes to select disassembler in GDB
[deliverable/binutils-gdb.git] / gdb / gdbarch.c
index 821ad5ed454e6b3538442aa3f5ebd5ca916acc55..257c39fd1e720216b323f84e1e035dfc9ce3737e 100644 (file)
@@ -3,7 +3,7 @@
 
 /* Dynamic architecture support for GDB, the GNU debugger.
 
-   Copyright (C) 1998-2015 Free Software Foundation, Inc.
+   Copyright (C) 1998-2017 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
    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/>.  */
 
@@ -47,6 +47,7 @@
 #include "observer.h"
 #include "regcache.h"
 #include "objfiles.h"
+#include "auxv.h"
 
 /* Static function declarations */
 
@@ -83,10 +84,18 @@ pstring (const char *string)
   return string;
 }
 
+static const char *
+pstring_ptr (char **string)
+{
+  if (string == NULL || *string == NULL)
+    return "(null)";
+  return *string;
+}
+
 /* Helper function to print a list of strings, represented as "const
    char *const *".  The list is printed comma-separated.  */
 
-static char *
+static const char *
 pstring_list (const char *const *list)
 {
   static char ret[100];
@@ -175,6 +184,9 @@ struct gdbarch
   const struct floatformat ** double_format;
   int long_double_bit;
   const struct floatformat ** long_double_format;
+  int wchar_bit;
+  int wchar_signed;
+  gdbarch_floatformat_for_type_ftype *floatformat_for_type;
   int ptr_bit;
   int addr_bit;
   int dwarf2_addr_size;
@@ -189,6 +201,7 @@ struct gdbarch
   int num_pseudo_regs;
   gdbarch_ax_pseudo_register_collect_ftype *ax_pseudo_register_collect;
   gdbarch_ax_pseudo_register_push_stack_ftype *ax_pseudo_register_push_stack;
+  gdbarch_handle_segmentation_fault_ftype *handle_segmentation_fault;
   int sp_regnum;
   int pc_regnum;
   int ps_regnum;
@@ -204,6 +217,7 @@ struct gdbarch
   gdbarch_push_dummy_call_ftype *push_dummy_call;
   int call_dummy_location;
   gdbarch_push_dummy_code_ftype *push_dummy_code;
+  gdbarch_code_of_frame_writable_ftype *code_of_frame_writable;
   gdbarch_print_registers_info_ftype *print_registers_info;
   gdbarch_print_float_info_ftype *print_float_info;
   gdbarch_print_vector_info_ftype *print_vector_info;
@@ -226,7 +240,9 @@ struct gdbarch
   gdbarch_skip_entrypoint_ftype *skip_entrypoint;
   gdbarch_inner_than_ftype *inner_than;
   gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc;
-  gdbarch_remote_breakpoint_from_pc_ftype *remote_breakpoint_from_pc;
+  gdbarch_breakpoint_kind_from_pc_ftype *breakpoint_kind_from_pc;
+  gdbarch_sw_breakpoint_from_kind_ftype *sw_breakpoint_from_kind;
+  gdbarch_breakpoint_kind_from_current_state_ftype *breakpoint_kind_from_current_state;
   gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address;
   gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint;
   gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint;
@@ -259,6 +275,7 @@ struct gdbarch
   int have_nonsteppable_watchpoint;
   gdbarch_address_class_type_flags_ftype *address_class_type_flags;
   gdbarch_address_class_type_flags_to_name_ftype *address_class_type_flags_to_name;
+  gdbarch_execute_dwarf_cfa_vendor_op_ftype *execute_dwarf_cfa_vendor_op;
   gdbarch_address_class_name_to_type_flags_ftype *address_class_name_to_type_flags;
   gdbarch_register_reggroup_p_ftype *register_reggroup_p;
   gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument;
@@ -269,6 +286,7 @@ struct gdbarch
   gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries;
   gdbarch_core_xfer_shared_libraries_aix_ftype *core_xfer_shared_libraries_aix;
   gdbarch_core_pid_to_str_ftype *core_pid_to_str;
+  gdbarch_core_thread_name_ftype *core_thread_name;
   const char * gcore_bfd_target;
   int vtable_function_descriptors;
   int vbit_in_delta;
@@ -311,6 +329,7 @@ struct gdbarch
   int has_global_breakpoints;
   gdbarch_has_shared_address_space_ftype *has_shared_address_space;
   gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at;
+  gdbarch_guess_tracepoint_registers_ftype *guess_tracepoint_registers;
   gdbarch_auto_charset_ftype *auto_charset;
   gdbarch_auto_wide_charset_ftype *auto_wide_charset;
   const char * solib_symbols_extension;
@@ -324,10 +343,15 @@ struct gdbarch
   gdbarch_insn_is_ret_ftype *insn_is_ret;
   gdbarch_insn_is_jump_ftype *insn_is_jump;
   gdbarch_auxv_parse_ftype *auxv_parse;
+  gdbarch_print_auxv_entry_ftype *print_auxv_entry;
   gdbarch_vsyscall_range_ftype *vsyscall_range;
   gdbarch_infcall_mmap_ftype *infcall_mmap;
+  gdbarch_infcall_munmap_ftype *infcall_munmap;
   gdbarch_gcc_target_options_ftype *gcc_target_options;
   gdbarch_gnu_triplet_regexp_ftype *gnu_triplet_regexp;
+  gdbarch_addressable_memory_unit_size_ftype *addressable_memory_unit_size;
+  char ** disassembler_options;
+  const disasm_options_t * valid_disassembler_options;
 };
 
 /* Create a new ``struct gdbarch'' based on information provided by
@@ -343,7 +367,7 @@ gdbarch_alloc (const struct gdbarch_info *info,
      then use that to allocate the architecture vector.  */
   struct obstack *obstack = XNEW (struct obstack);
   obstack_init (obstack);
-  gdbarch = obstack_alloc (obstack, sizeof (*gdbarch));
+  gdbarch = XOBNEW (obstack, struct gdbarch);
   memset (gdbarch, 0, sizeof (*gdbarch));
   gdbarch->obstack = obstack;
 
@@ -368,6 +392,9 @@ gdbarch_alloc (const struct gdbarch_info *info,
   gdbarch->float_bit = 4*TARGET_CHAR_BIT;
   gdbarch->double_bit = 8*TARGET_CHAR_BIT;
   gdbarch->long_double_bit = 8*TARGET_CHAR_BIT;
+  gdbarch->wchar_bit = 4*TARGET_CHAR_BIT;
+  gdbarch->wchar_signed = -1;
+  gdbarch->floatformat_for_type = default_floatformat_for_type;
   gdbarch->ptr_bit = gdbarch->int_bit;
   gdbarch->char_signed = -1;
   gdbarch->virtual_frame_pointer = legacy_virtual_frame_pointer;
@@ -382,6 +409,7 @@ gdbarch_alloc (const struct gdbarch_info *info,
   gdbarch->dwarf2_reg_to_regnum = no_op_reg_to_regnum;
   gdbarch->deprecated_fp_regnum = -1;
   gdbarch->call_dummy_location = AT_ENTRY_POINT;
+  gdbarch->code_of_frame_writable = default_code_of_frame_writable;
   gdbarch->print_registers_info = default_print_registers_info;
   gdbarch->print_float_info = default_print_float_info;
   gdbarch->register_sim_regno = legacy_register_sim_regno;
@@ -392,13 +420,16 @@ gdbarch_alloc (const struct gdbarch_info *info,
   gdbarch->pointer_to_address = unsigned_pointer_to_address;
   gdbarch->address_to_pointer = unsigned_address_to_pointer;
   gdbarch->return_in_first_hidden_param_p = default_return_in_first_hidden_param_p;
-  gdbarch->remote_breakpoint_from_pc = default_remote_breakpoint_from_pc;
+  gdbarch->breakpoint_from_pc = default_breakpoint_from_pc;
+  gdbarch->sw_breakpoint_from_kind = NULL;
+  gdbarch->breakpoint_kind_from_current_state = default_breakpoint_kind_from_current_state;
   gdbarch->memory_insert_breakpoint = default_memory_insert_breakpoint;
   gdbarch->memory_remove_breakpoint = default_memory_remove_breakpoint;
   gdbarch->remote_register_number = default_remote_register_number;
   gdbarch->stabs_argument_has_addr = default_stabs_argument_has_addr;
   gdbarch->convert_from_func_ptr_addr = convert_from_func_ptr_addr_identity;
   gdbarch->addr_bits_remove = core_addr_identity;
+  gdbarch->print_insn = default_print_insn;
   gdbarch->skip_trampoline_code = generic_skip_trampoline_code;
   gdbarch->skip_solib_resolver = generic_skip_solib_resolver;
   gdbarch->in_solib_return_trampoline = generic_in_solib_return_trampoline;
@@ -407,6 +438,7 @@ gdbarch_alloc (const struct gdbarch_info *info,
   gdbarch->make_symbol_special = default_make_symbol_special;
   gdbarch->adjust_dwarf2_addr = default_adjust_dwarf2_addr;
   gdbarch->adjust_dwarf2_line = default_adjust_dwarf2_line;
+  gdbarch->execute_dwarf_cfa_vendor_op = default_execute_dwarf_cfa_vendor_op;
   gdbarch->register_reggroup_p = default_register_reggroup_p;
   gdbarch->skip_permanent_breakpoint = default_skip_permanent_breakpoint;
   gdbarch->displaced_step_hw_singlestep = default_displaced_step_hw_singlestep;
@@ -416,6 +448,7 @@ gdbarch_alloc (const struct gdbarch_info *info,
   gdbarch->relocate_instruction = NULL;
   gdbarch->has_shared_address_space = default_has_shared_address_space;
   gdbarch->fast_tracepoint_valid_at = default_fast_tracepoint_valid_at;
+  gdbarch->guess_tracepoint_registers = default_guess_tracepoint_registers;
   gdbarch->auto_charset = default_auto_charset;
   gdbarch->auto_wide_charset = default_auto_wide_charset;
   gdbarch->gen_return_address = default_gen_return_address;
@@ -424,10 +457,13 @@ gdbarch_alloc (const struct gdbarch_info *info,
   gdbarch->insn_is_call = default_insn_is_call;
   gdbarch->insn_is_ret = default_insn_is_ret;
   gdbarch->insn_is_jump = default_insn_is_jump;
+  gdbarch->print_auxv_entry = default_print_auxv_entry;
   gdbarch->vsyscall_range = default_vsyscall_range;
   gdbarch->infcall_mmap = default_infcall_mmap;
+  gdbarch->infcall_munmap = default_infcall_munmap;
   gdbarch->gcc_target_options = default_gcc_target_options;
   gdbarch->gnu_triplet_regexp = default_gnu_triplet_regexp;
+  gdbarch->addressable_memory_unit_size = default_addressable_memory_unit_size;
   /* gdbarch_alloc() */
 
   return gdbarch;
@@ -445,6 +481,14 @@ gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
   return data;
 }
 
+/* See gdbarch.h.  */
+
+char *
+gdbarch_obstack_strdup (struct gdbarch *arch, const char *string)
+{
+  return obstack_strdup (arch->obstack, string);
+}
+
 
 /* Free a gdbarch struct.  This should never happen in normal
    operation --- once you've created a gdbarch, you keep it around.
@@ -470,18 +514,13 @@ gdbarch_free (struct gdbarch *arch)
 static void
 verify_gdbarch (struct gdbarch *gdbarch)
 {
-  struct ui_file *log;
-  struct cleanup *cleanups;
-  long length;
-  char *buf;
+  string_file log;
 
-  log = mem_fileopen ();
-  cleanups = make_cleanup_ui_file_delete (log);
   /* fundamental */
   if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
-    fprintf_unfiltered (log, "\n\tbyte-order");
+    log.puts ("\n\tbyte-order");
   if (gdbarch->bfd_arch_info == NULL)
-    fprintf_unfiltered (log, "\n\tbfd_arch_info");
+    log.puts ("\n\tbfd_arch_info");
   /* Check those that need to be defined for the given multi-arch level.  */
   /* Skip verify of bits_big_endian, invalid_p == 0 */
   /* Skip verify of short_bit, invalid_p == 0 */
@@ -501,6 +540,10 @@ verify_gdbarch (struct gdbarch *gdbarch)
   /* Skip verify of long_double_bit, invalid_p == 0 */
   if (gdbarch->long_double_format == 0)
     gdbarch->long_double_format = floatformats_ieee_double;
+  /* Skip verify of wchar_bit, invalid_p == 0 */
+  if (gdbarch->wchar_signed == -1)
+    gdbarch->wchar_signed = 1;
+  /* Skip verify of floatformat_for_type, invalid_p == 0 */
   /* Skip verify of ptr_bit, invalid_p == 0 */
   if (gdbarch->addr_bit == 0)
     gdbarch->addr_bit = gdbarch_ptr_bit (gdbarch);
@@ -515,10 +558,11 @@ verify_gdbarch (struct gdbarch *gdbarch)
   /* Skip verify of pseudo_register_read_value, has predicate.  */
   /* Skip verify of pseudo_register_write, has predicate.  */
   if (gdbarch->num_regs == -1)
-    fprintf_unfiltered (log, "\n\tnum_regs");
+    log.puts ("\n\tnum_regs");
   /* Skip verify of num_pseudo_regs, invalid_p == 0 */
   /* Skip verify of ax_pseudo_register_collect, has predicate.  */
   /* Skip verify of ax_pseudo_register_push_stack, has predicate.  */
+  /* Skip verify of handle_segmentation_fault, has predicate.  */
   /* Skip verify of sp_regnum, invalid_p == 0 */
   /* Skip verify of pc_regnum, invalid_p == 0 */
   /* Skip verify of ps_regnum, invalid_p == 0 */
@@ -528,13 +572,14 @@ verify_gdbarch (struct gdbarch *gdbarch)
   /* Skip verify of sdb_reg_to_regnum, invalid_p == 0 */
   /* Skip verify of dwarf2_reg_to_regnum, invalid_p == 0 */
   if (gdbarch->register_name == 0)
-    fprintf_unfiltered (log, "\n\tregister_name");
+    log.puts ("\n\tregister_name");
   /* Skip verify of register_type, has predicate.  */
   /* Skip verify of dummy_id, has predicate.  */
   /* Skip verify of deprecated_fp_regnum, invalid_p == 0 */
   /* Skip verify of push_dummy_call, has predicate.  */
   /* Skip verify of call_dummy_location, invalid_p == 0 */
   /* Skip verify of push_dummy_code, has predicate.  */
+  /* Skip verify of code_of_frame_writable, invalid_p == 0 */
   /* Skip verify of print_registers_info, invalid_p == 0 */
   /* Skip verify of print_float_info, invalid_p == 0 */
   /* Skip verify of print_vector_info, has predicate.  */
@@ -550,14 +595,16 @@ verify_gdbarch (struct gdbarch *gdbarch)
   /* Skip verify of return_value, has predicate.  */
   /* Skip verify of return_in_first_hidden_param_p, invalid_p == 0 */
   if (gdbarch->skip_prologue == 0)
-    fprintf_unfiltered (log, "\n\tskip_prologue");
+    log.puts ("\n\tskip_prologue");
   /* Skip verify of skip_main_prologue, has predicate.  */
   /* Skip verify of skip_entrypoint, has predicate.  */
   if (gdbarch->inner_than == 0)
-    fprintf_unfiltered (log, "\n\tinner_than");
-  if (gdbarch->breakpoint_from_pc == 0)
-    fprintf_unfiltered (log, "\n\tbreakpoint_from_pc");
-  /* Skip verify of remote_breakpoint_from_pc, invalid_p == 0 */
+    log.puts ("\n\tinner_than");
+  /* Skip verify of breakpoint_from_pc, invalid_p == 0 */
+  if (gdbarch->breakpoint_kind_from_pc == 0)
+    log.puts ("\n\tbreakpoint_kind_from_pc");
+  /* Skip verify of sw_breakpoint_from_kind, invalid_p == 0 */
+  /* Skip verify of breakpoint_kind_from_current_state, invalid_p == 0 */
   /* Skip verify of adjust_breakpoint_address, has predicate.  */
   /* Skip verify of memory_insert_breakpoint, invalid_p == 0 */
   /* Skip verify of memory_remove_breakpoint, invalid_p == 0 */
@@ -575,8 +622,7 @@ verify_gdbarch (struct gdbarch *gdbarch)
   /* Skip verify of addr_bits_remove, invalid_p == 0 */
   /* Skip verify of software_single_step, has predicate.  */
   /* Skip verify of single_step_through_delay, has predicate.  */
-  if (gdbarch->print_insn == 0)
-    fprintf_unfiltered (log, "\n\tprint_insn");
+  /* Skip verify of print_insn, invalid_p == 0 */
   /* Skip verify of skip_trampoline_code, invalid_p == 0 */
   /* Skip verify of skip_solib_resolver, invalid_p == 0 */
   /* Skip verify of in_solib_return_trampoline, invalid_p == 0 */
@@ -590,6 +636,7 @@ verify_gdbarch (struct gdbarch *gdbarch)
   /* Skip verify of have_nonsteppable_watchpoint, invalid_p == 0 */
   /* Skip verify of address_class_type_flags, has predicate.  */
   /* Skip verify of address_class_type_flags_to_name, has predicate.  */
+  /* Skip verify of execute_dwarf_cfa_vendor_op, invalid_p == 0 */
   /* Skip verify of address_class_name_to_type_flags, has predicate.  */
   /* Skip verify of register_reggroup_p, invalid_p == 0 */
   /* Skip verify of fetch_pointer_argument, has predicate.  */
@@ -600,6 +647,7 @@ verify_gdbarch (struct gdbarch *gdbarch)
   /* Skip verify of core_xfer_shared_libraries, has predicate.  */
   /* Skip verify of core_xfer_shared_libraries_aix, has predicate.  */
   /* Skip verify of core_pid_to_str, has predicate.  */
+  /* Skip verify of core_thread_name, has predicate.  */
   /* Skip verify of gcore_bfd_target, has predicate.  */
   /* Skip verify of vtable_function_descriptors, invalid_p == 0 */
   /* Skip verify of vbit_in_delta, invalid_p == 0 */
@@ -609,9 +657,9 @@ verify_gdbarch (struct gdbarch *gdbarch)
   /* Skip verify of displaced_step_hw_singlestep, invalid_p == 0 */
   /* Skip verify of displaced_step_fixup, has predicate.  */
   if ((! gdbarch->displaced_step_free_closure) != (! gdbarch->displaced_step_copy_insn))
-    fprintf_unfiltered (log, "\n\tdisplaced_step_free_closure");
+    log.puts ("\n\tdisplaced_step_free_closure");
   if ((! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn))
-    fprintf_unfiltered (log, "\n\tdisplaced_step_location");
+    log.puts ("\n\tdisplaced_step_location");
   /* Skip verify of relocate_instruction, has predicate.  */
   /* Skip verify of overlay_update, has predicate.  */
   /* Skip verify of core_read_description, has predicate.  */
@@ -644,6 +692,7 @@ verify_gdbarch (struct gdbarch *gdbarch)
   /* Skip verify of has_global_breakpoints, invalid_p == 0 */
   /* Skip verify of has_shared_address_space, invalid_p == 0 */
   /* Skip verify of fast_tracepoint_valid_at, invalid_p == 0 */
+  /* Skip verify of guess_tracepoint_registers, invalid_p == 0 */
   /* Skip verify of auto_charset, invalid_p == 0 */
   /* Skip verify of auto_wide_charset, invalid_p == 0 */
   /* Skip verify of has_dos_based_file_system, invalid_p == 0 */
@@ -656,17 +705,19 @@ verify_gdbarch (struct gdbarch *gdbarch)
   /* Skip verify of insn_is_ret, invalid_p == 0 */
   /* Skip verify of insn_is_jump, invalid_p == 0 */
   /* Skip verify of auxv_parse, has predicate.  */
+  /* Skip verify of print_auxv_entry, invalid_p == 0 */
   /* Skip verify of vsyscall_range, invalid_p == 0 */
   /* Skip verify of infcall_mmap, invalid_p == 0 */
+  /* Skip verify of infcall_munmap, invalid_p == 0 */
   /* Skip verify of gcc_target_options, invalid_p == 0 */
   /* Skip verify of gnu_triplet_regexp, invalid_p == 0 */
-  buf = ui_file_xstrdup (log, &length);
-  make_cleanup (xfree, buf);
-  if (length > 0)
+  /* Skip verify of addressable_memory_unit_size, invalid_p == 0 */
+  /* Skip verify of disassembler_options, invalid_p == 0 */
+  /* Skip verify of valid_disassembler_options, invalid_p == 0 */
+  if (!log.empty ())
     internal_error (__FILE__, __LINE__,
                     _("verify_gdbarch: the following are invalid ...%s"),
-                    buf);
-  do_cleanups (cleanups);
+                    log.c_str ());
 }
 
 
@@ -710,6 +761,9 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: address_to_pointer = <%s>\n",
                       host_address_to_string (gdbarch->address_to_pointer));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: addressable_memory_unit_size = <%s>\n",
+                      host_address_to_string (gdbarch->addressable_memory_unit_size));
   fprintf_unfiltered (file,
                       "gdbarch_dump: gdbarch_adjust_breakpoint_address_p() = %d\n",
                       gdbarch_adjust_breakpoint_address_p (gdbarch));
@@ -758,6 +812,12 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: breakpoint_from_pc = <%s>\n",
                       host_address_to_string (gdbarch->breakpoint_from_pc));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: breakpoint_kind_from_current_state = <%s>\n",
+                      host_address_to_string (gdbarch->breakpoint_kind_from_current_state));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: breakpoint_kind_from_pc = <%s>\n",
+                      host_address_to_string (gdbarch->breakpoint_kind_from_pc));
   fprintf_unfiltered (file,
                       "gdbarch_dump: byte_order = %s\n",
                       plongest (gdbarch->byte_order));
@@ -779,6 +839,9 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: char_signed = %s\n",
                       plongest (gdbarch->char_signed));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: code_of_frame_writable = <%s>\n",
+                      host_address_to_string (gdbarch->code_of_frame_writable));
   fprintf_unfiltered (file,
                       "gdbarch_dump: coff_make_msymbol_special = <%s>\n",
                       host_address_to_string (gdbarch->coff_make_msymbol_special));
@@ -806,6 +869,12 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: core_read_description = <%s>\n",
                       host_address_to_string (gdbarch->core_read_description));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: gdbarch_core_thread_name_p() = %d\n",
+                      gdbarch_core_thread_name_p (gdbarch));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: core_thread_name = <%s>\n",
+                      host_address_to_string (gdbarch->core_thread_name));
   fprintf_unfiltered (file,
                       "gdbarch_dump: gdbarch_core_xfer_shared_libraries_p() = %d\n",
                       gdbarch_core_xfer_shared_libraries_p (gdbarch));
@@ -827,6 +896,9 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: deprecated_function_start_offset = %s\n",
                       core_addr_to_string_nz (gdbarch->deprecated_function_start_offset));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: disassembler_options = %s\n",
+                      pstring_ptr (gdbarch->disassembler_options));
   fprintf_unfiltered (file,
                       "gdbarch_dump: gdbarch_displaced_step_copy_insn_p() = %d\n",
                       gdbarch_displaced_step_copy_insn_p (gdbarch));
@@ -905,6 +977,9 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: elfcore_write_linux_prpsinfo = <%s>\n",
                       host_address_to_string (gdbarch->elfcore_write_linux_prpsinfo));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: execute_dwarf_cfa_vendor_op = <%s>\n",
+                      host_address_to_string (gdbarch->execute_dwarf_cfa_vendor_op));
   fprintf_unfiltered (file,
                       "gdbarch_dump: fast_tracepoint_valid_at = <%s>\n",
                       host_address_to_string (gdbarch->fast_tracepoint_valid_at));
@@ -932,6 +1007,9 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: float_format = %s\n",
                       pformat (gdbarch->float_format));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: floatformat_for_type = <%s>\n",
+                      host_address_to_string (gdbarch->floatformat_for_type));
   fprintf_unfiltered (file,
                       "gdbarch_dump: fp0_regnum = %s\n",
                       plongest (gdbarch->fp0_regnum));
@@ -998,12 +1076,21 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: gnu_triplet_regexp = <%s>\n",
                       host_address_to_string (gdbarch->gnu_triplet_regexp));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: guess_tracepoint_registers = <%s>\n",
+                      host_address_to_string (gdbarch->guess_tracepoint_registers));
   fprintf_unfiltered (file,
                       "gdbarch_dump: half_bit = %s\n",
                       plongest (gdbarch->half_bit));
   fprintf_unfiltered (file,
                       "gdbarch_dump: half_format = %s\n",
                       pformat (gdbarch->half_format));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: gdbarch_handle_segmentation_fault_p() = %d\n",
+                      gdbarch_handle_segmentation_fault_p (gdbarch));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: handle_segmentation_fault = <%s>\n",
+                      host_address_to_string (gdbarch->handle_segmentation_fault));
   fprintf_unfiltered (file,
                       "gdbarch_dump: has_dos_based_file_system = %s\n",
                       plongest (gdbarch->has_dos_based_file_system));
@@ -1019,15 +1106,15 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: have_nonsteppable_watchpoint = %s\n",
                       plongest (gdbarch->have_nonsteppable_watchpoint));
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: stack_frame_destroyed_p = <%s>\n",
-                      host_address_to_string (gdbarch->stack_frame_destroyed_p));
   fprintf_unfiltered (file,
                       "gdbarch_dump: in_solib_return_trampoline = <%s>\n",
                       host_address_to_string (gdbarch->in_solib_return_trampoline));
   fprintf_unfiltered (file,
                       "gdbarch_dump: infcall_mmap = <%s>\n",
                       host_address_to_string (gdbarch->infcall_mmap));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: infcall_munmap = <%s>\n",
+                      host_address_to_string (gdbarch->infcall_munmap));
   fprintf_unfiltered (file,
                       "gdbarch_dump: gdbarch_info_proc_p() = %d\n",
                       gdbarch_info_proc_p (gdbarch));
@@ -1121,6 +1208,9 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: pointer_to_address = <%s>\n",
                       host_address_to_string (gdbarch->pointer_to_address));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: print_auxv_entry = <%s>\n",
+                      host_address_to_string (gdbarch->print_auxv_entry));
   fprintf_unfiltered (file,
                       "gdbarch_dump: print_float_info = <%s>\n",
                       host_address_to_string (gdbarch->print_float_info));
@@ -1223,9 +1313,6 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: relocate_instruction = <%s>\n",
                       host_address_to_string (gdbarch->relocate_instruction));
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: remote_breakpoint_from_pc = <%s>\n",
-                      host_address_to_string (gdbarch->remote_breakpoint_from_pc));
   fprintf_unfiltered (file,
                       "gdbarch_dump: remote_register_number = <%s>\n",
                       host_address_to_string (gdbarch->remote_register_number));
@@ -1295,6 +1382,9 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: stabs_argument_has_addr = <%s>\n",
                       host_address_to_string (gdbarch->stabs_argument_has_addr));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: stack_frame_destroyed_p = <%s>\n",
+                      host_address_to_string (gdbarch->stack_frame_destroyed_p));
   fprintf_unfiltered (file,
                       "gdbarch_dump: stap_gdb_register_prefix = %s\n",
                       pstring (gdbarch->stap_gdb_register_prefix));
@@ -1337,6 +1427,9 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: static_transform_name = <%s>\n",
                       host_address_to_string (gdbarch->static_transform_name));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: sw_breakpoint_from_kind = <%s>\n",
+                      host_address_to_string (gdbarch->sw_breakpoint_from_kind));
   fprintf_unfiltered (file,
                       "gdbarch_dump: syscalls_info = %s\n",
                       host_address_to_string (gdbarch->syscalls_info));
@@ -1355,6 +1448,9 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: unwind_sp = <%s>\n",
                       host_address_to_string (gdbarch->unwind_sp));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: valid_disassembler_options = %s\n",
+                      host_address_to_string (gdbarch->valid_disassembler_options));
   fprintf_unfiltered (file,
                       "gdbarch_dump: value_from_register = <%s>\n",
                       host_address_to_string (gdbarch->value_from_register));
@@ -1373,6 +1469,12 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: vtable_function_descriptors = %s\n",
                       plongest (gdbarch->vtable_function_descriptors));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: wchar_bit = %s\n",
+                      plongest (gdbarch->wchar_bit));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: wchar_signed = %s\n",
+                      plongest (gdbarch->wchar_signed));
   fprintf_unfiltered (file,
                       "gdbarch_dump: gdbarch_write_pc_p() = %d\n",
                       gdbarch_write_pc_p (gdbarch));
@@ -1674,6 +1776,58 @@ set_gdbarch_long_double_format (struct gdbarch *gdbarch,
   gdbarch->long_double_format = long_double_format;
 }
 
+int
+gdbarch_wchar_bit (struct gdbarch *gdbarch)
+{
+  gdb_assert (gdbarch != NULL);
+  /* Skip verify of wchar_bit, invalid_p == 0 */
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_wchar_bit called\n");
+  return gdbarch->wchar_bit;
+}
+
+void
+set_gdbarch_wchar_bit (struct gdbarch *gdbarch,
+                       int wchar_bit)
+{
+  gdbarch->wchar_bit = wchar_bit;
+}
+
+int
+gdbarch_wchar_signed (struct gdbarch *gdbarch)
+{
+  gdb_assert (gdbarch != NULL);
+  /* Check variable changed from pre-default.  */
+  gdb_assert (gdbarch->wchar_signed != -1);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_wchar_signed called\n");
+  return gdbarch->wchar_signed;
+}
+
+void
+set_gdbarch_wchar_signed (struct gdbarch *gdbarch,
+                          int wchar_signed)
+{
+  gdbarch->wchar_signed = wchar_signed;
+}
+
+const struct floatformat **
+gdbarch_floatformat_for_type (struct gdbarch *gdbarch, const char *name, int length)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->floatformat_for_type != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_floatformat_for_type called\n");
+  return gdbarch->floatformat_for_type (gdbarch, name, length);
+}
+
+void
+set_gdbarch_floatformat_for_type (struct gdbarch *gdbarch,
+                                  gdbarch_floatformat_for_type_ftype floatformat_for_type)
+{
+  gdbarch->floatformat_for_type = floatformat_for_type;
+}
+
 int
 gdbarch_ptr_bit (struct gdbarch *gdbarch)
 {
@@ -1965,6 +2119,30 @@ set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch,
   gdbarch->ax_pseudo_register_push_stack = ax_pseudo_register_push_stack;
 }
 
+int
+gdbarch_handle_segmentation_fault_p (struct gdbarch *gdbarch)
+{
+  gdb_assert (gdbarch != NULL);
+  return gdbarch->handle_segmentation_fault != NULL;
+}
+
+void
+gdbarch_handle_segmentation_fault (struct gdbarch *gdbarch, struct ui_out *uiout)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->handle_segmentation_fault != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_handle_segmentation_fault called\n");
+  gdbarch->handle_segmentation_fault (gdbarch, uiout);
+}
+
+void
+set_gdbarch_handle_segmentation_fault (struct gdbarch *gdbarch,
+                                       gdbarch_handle_segmentation_fault_ftype handle_segmentation_fault)
+{
+  gdbarch->handle_segmentation_fault = handle_segmentation_fault;
+}
+
 int
 gdbarch_sp_regnum (struct gdbarch *gdbarch)
 {
@@ -2248,6 +2426,23 @@ set_gdbarch_push_dummy_code (struct gdbarch *gdbarch,
   gdbarch->push_dummy_code = push_dummy_code;
 }
 
+int
+gdbarch_code_of_frame_writable (struct gdbarch *gdbarch, struct frame_info *frame)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->code_of_frame_writable != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_code_of_frame_writable called\n");
+  return gdbarch->code_of_frame_writable (gdbarch, frame);
+}
+
+void
+set_gdbarch_code_of_frame_writable (struct gdbarch *gdbarch,
+                                    gdbarch_code_of_frame_writable_ftype code_of_frame_writable)
+{
+  gdbarch->code_of_frame_writable = code_of_frame_writable;
+}
+
 void
 gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all)
 {
@@ -2663,21 +2858,55 @@ set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch,
   gdbarch->breakpoint_from_pc = breakpoint_from_pc;
 }
 
+int
+gdbarch_breakpoint_kind_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->breakpoint_kind_from_pc != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_breakpoint_kind_from_pc called\n");
+  return gdbarch->breakpoint_kind_from_pc (gdbarch, pcptr);
+}
+
 void
-gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr)
+set_gdbarch_breakpoint_kind_from_pc (struct gdbarch *gdbarch,
+                                     gdbarch_breakpoint_kind_from_pc_ftype breakpoint_kind_from_pc)
+{
+  gdbarch->breakpoint_kind_from_pc = breakpoint_kind_from_pc;
+}
+
+const gdb_byte *
+gdbarch_sw_breakpoint_from_kind (struct gdbarch *gdbarch, int kind, int *size)
 {
   gdb_assert (gdbarch != NULL);
-  gdb_assert (gdbarch->remote_breakpoint_from_pc != NULL);
+  gdb_assert (gdbarch->sw_breakpoint_from_kind != NULL);
   if (gdbarch_debug >= 2)
-    fprintf_unfiltered (gdb_stdlog, "gdbarch_remote_breakpoint_from_pc called\n");
-  gdbarch->remote_breakpoint_from_pc (gdbarch, pcptr, kindptr);
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_sw_breakpoint_from_kind called\n");
+  return gdbarch->sw_breakpoint_from_kind (gdbarch, kind, size);
 }
 
 void
-set_gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch,
-                                       gdbarch_remote_breakpoint_from_pc_ftype remote_breakpoint_from_pc)
+set_gdbarch_sw_breakpoint_from_kind (struct gdbarch *gdbarch,
+                                     gdbarch_sw_breakpoint_from_kind_ftype sw_breakpoint_from_kind)
 {
-  gdbarch->remote_breakpoint_from_pc = remote_breakpoint_from_pc;
+  gdbarch->sw_breakpoint_from_kind = sw_breakpoint_from_kind;
+}
+
+int
+gdbarch_breakpoint_kind_from_current_state (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR *pcptr)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->breakpoint_kind_from_current_state != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_breakpoint_kind_from_current_state called\n");
+  return gdbarch->breakpoint_kind_from_current_state (gdbarch, regcache, pcptr);
+}
+
+void
+set_gdbarch_breakpoint_kind_from_current_state (struct gdbarch *gdbarch,
+                                                gdbarch_breakpoint_kind_from_current_state_ftype breakpoint_kind_from_current_state)
+{
+  gdbarch->breakpoint_kind_from_current_state = breakpoint_kind_from_current_state;
 }
 
 int
@@ -3000,14 +3229,14 @@ gdbarch_software_single_step_p (struct gdbarch *gdbarch)
   return gdbarch->software_single_step != NULL;
 }
 
-int
-gdbarch_software_single_step (struct gdbarch *gdbarch, struct frame_info *frame)
+std::vector<CORE_ADDR>
+gdbarch_software_single_step (struct gdbarch *gdbarch, struct regcache *regcache)
 {
   gdb_assert (gdbarch != NULL);
   gdb_assert (gdbarch->software_single_step != NULL);
   if (gdbarch_debug >= 2)
     fprintf_unfiltered (gdb_stdlog, "gdbarch_software_single_step called\n");
-  return gdbarch->software_single_step (frame);
+  return gdbarch->software_single_step (regcache);
 }
 
 void
@@ -3300,6 +3529,23 @@ set_gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch,
   gdbarch->address_class_type_flags_to_name = address_class_type_flags_to_name;
 }
 
+bool
+gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch *gdbarch, gdb_byte op, struct dwarf2_frame_state *fs)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->execute_dwarf_cfa_vendor_op != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_execute_dwarf_cfa_vendor_op called\n");
+  return gdbarch->execute_dwarf_cfa_vendor_op (gdbarch, op, fs);
+}
+
+void
+set_gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch *gdbarch,
+                                         gdbarch_execute_dwarf_cfa_vendor_op_ftype execute_dwarf_cfa_vendor_op)
+{
+  gdbarch->execute_dwarf_cfa_vendor_op = execute_dwarf_cfa_vendor_op;
+}
+
 int
 gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch)
 {
@@ -3516,7 +3762,7 @@ gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch)
   return gdbarch->core_pid_to_str != NULL;
 }
 
-char *
+const char *
 gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid)
 {
   gdb_assert (gdbarch != NULL);
@@ -3533,6 +3779,30 @@ set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch,
   gdbarch->core_pid_to_str = core_pid_to_str;
 }
 
+int
+gdbarch_core_thread_name_p (struct gdbarch *gdbarch)
+{
+  gdb_assert (gdbarch != NULL);
+  return gdbarch->core_thread_name != NULL;
+}
+
+const char *
+gdbarch_core_thread_name (struct gdbarch *gdbarch, struct thread_info *thr)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->core_thread_name != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_core_thread_name called\n");
+  return gdbarch->core_thread_name (gdbarch, thr);
+}
+
+void
+set_gdbarch_core_thread_name (struct gdbarch *gdbarch,
+                              gdbarch_core_thread_name_ftype core_thread_name)
+{
+  gdbarch->core_thread_name = core_thread_name;
+}
+
 int
 gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch)
 {
@@ -4382,13 +4652,13 @@ set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch,
 }
 
 int
-gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg)
+gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, char **msg)
 {
   gdb_assert (gdbarch != NULL);
   gdb_assert (gdbarch->fast_tracepoint_valid_at != NULL);
   if (gdbarch_debug >= 2)
     fprintf_unfiltered (gdb_stdlog, "gdbarch_fast_tracepoint_valid_at called\n");
-  return gdbarch->fast_tracepoint_valid_at (gdbarch, addr, isize, msg);
+  return gdbarch->fast_tracepoint_valid_at (gdbarch, addr, msg);
 }
 
 void
@@ -4398,6 +4668,23 @@ set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch,
   gdbarch->fast_tracepoint_valid_at = fast_tracepoint_valid_at;
 }
 
+void
+gdbarch_guess_tracepoint_registers (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->guess_tracepoint_registers != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_guess_tracepoint_registers called\n");
+  gdbarch->guess_tracepoint_registers (gdbarch, regcache, addr);
+}
+
+void
+set_gdbarch_guess_tracepoint_registers (struct gdbarch *gdbarch,
+                                        gdbarch_guess_tracepoint_registers_ftype guess_tracepoint_registers)
+{
+  gdbarch->guess_tracepoint_registers = guess_tracepoint_registers;
+}
+
 const char *
 gdbarch_auto_charset (struct gdbarch *gdbarch)
 {
@@ -4639,6 +4926,23 @@ set_gdbarch_auxv_parse (struct gdbarch *gdbarch,
   gdbarch->auxv_parse = auxv_parse;
 }
 
+void
+gdbarch_print_auxv_entry (struct gdbarch *gdbarch, struct ui_file *file, CORE_ADDR type, CORE_ADDR val)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->print_auxv_entry != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_print_auxv_entry called\n");
+  gdbarch->print_auxv_entry (gdbarch, file, type, val);
+}
+
+void
+set_gdbarch_print_auxv_entry (struct gdbarch *gdbarch,
+                              gdbarch_print_auxv_entry_ftype print_auxv_entry)
+{
+  gdbarch->print_auxv_entry = print_auxv_entry;
+}
+
 int
 gdbarch_vsyscall_range (struct gdbarch *gdbarch, struct mem_range *range)
 {
@@ -4673,6 +4977,23 @@ set_gdbarch_infcall_mmap (struct gdbarch *gdbarch,
   gdbarch->infcall_mmap = infcall_mmap;
 }
 
+void
+gdbarch_infcall_munmap (struct gdbarch *gdbarch, CORE_ADDR addr, CORE_ADDR size)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->infcall_munmap != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_infcall_munmap called\n");
+  gdbarch->infcall_munmap (addr, size);
+}
+
+void
+set_gdbarch_infcall_munmap (struct gdbarch *gdbarch,
+                            gdbarch_infcall_munmap_ftype infcall_munmap)
+{
+  gdbarch->infcall_munmap = infcall_munmap;
+}
+
 char *
 gdbarch_gcc_target_options (struct gdbarch *gdbarch)
 {
@@ -4707,6 +5028,57 @@ set_gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch,
   gdbarch->gnu_triplet_regexp = gnu_triplet_regexp;
 }
 
+int
+gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->addressable_memory_unit_size != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_addressable_memory_unit_size called\n");
+  return gdbarch->addressable_memory_unit_size (gdbarch);
+}
+
+void
+set_gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch,
+                                          gdbarch_addressable_memory_unit_size_ftype addressable_memory_unit_size)
+{
+  gdbarch->addressable_memory_unit_size = addressable_memory_unit_size;
+}
+
+char **
+gdbarch_disassembler_options (struct gdbarch *gdbarch)
+{
+  gdb_assert (gdbarch != NULL);
+  /* Skip verify of disassembler_options, invalid_p == 0 */
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_disassembler_options called\n");
+  return gdbarch->disassembler_options;
+}
+
+void
+set_gdbarch_disassembler_options (struct gdbarch *gdbarch,
+                                  char ** disassembler_options)
+{
+  gdbarch->disassembler_options = disassembler_options;
+}
+
+const disasm_options_t *
+gdbarch_valid_disassembler_options (struct gdbarch *gdbarch)
+{
+  gdb_assert (gdbarch != NULL);
+  /* Skip verify of valid_disassembler_options, invalid_p == 0 */
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_valid_disassembler_options called\n");
+  return gdbarch->valid_disassembler_options;
+}
+
+void
+set_gdbarch_valid_disassembler_options (struct gdbarch *gdbarch,
+                                        const disasm_options_t * valid_disassembler_options)
+{
+  gdbarch->valid_disassembler_options = valid_disassembler_options;
+}
+
 
 /* Keep a registry of per-architecture data-pointers required by GDB
    modules.  */
@@ -4848,7 +5220,7 @@ static struct gdbarch_registration *gdbarch_registry = NULL;
 static void
 append_name (const char ***buf, int *nr, const char *name)
 {
-  *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
+  *buf = XRESIZEVEC (const char *, *buf, *nr + 1);
   (*buf)[*nr] = name;
   *nr += 1;
 }
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