Use type_instance_flags more throughout
[deliverable/binutils-gdb.git] / gdb / gdbarch.c
index 41c086685d7494c8f9477e882af5d879115ab5f6..5e44047c2a969231c344ca1f45ed0705ac60ea95 100644 (file)
@@ -3,7 +3,7 @@
 
 /* Dynamic architecture support for GDB, the GNU debugger.
 
-   Copyright (C) 1998-2017 Free Software Foundation, Inc.
+   Copyright (C) 1998-2020 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
-/* This file was created with the aid of ``gdbarch.sh''.
-
-   The Bourne shell script ``gdbarch.sh'' creates the files
-   ``new-gdbarch.c'' and ``new-gdbarch.h and then compares them
-   against the existing ``gdbarch.[hc]''.  Any differences found
-   being reported.
-
-   If editing this file, please also run gdbarch.sh and merge any
-   changes into that script. Conversely, when making sweeping changes
-   to this file, modifying gdbarch.sh and using its output may prove
-   easier.  */
+/* This file was created with the aid of ``gdbarch.sh''.  */
 
 
 #include "defs.h"
 #include "reggroups.h"
 #include "osabi.h"
 #include "gdb_obstack.h"
-#include "observer.h"
+#include "observable.h"
 #include "regcache.h"
 #include "objfiles.h"
 #include "auxv.h"
+#include "frame-unwind.h"
+#include "dummy-frame.h"
 
 /* Static function declarations */
 
@@ -170,12 +162,12 @@ struct gdbarch
 
      */
 
-  int bits_big_endian;
   int short_bit;
   int int_bit;
   int long_bit;
   int long_long_bit;
-  int long_long_align_bit;
+  int bfloat16_bit;
+  const struct floatformat ** bfloat16_format;
   int half_bit;
   const struct floatformat ** half_format;
   int float_bit;
@@ -201,7 +193,7 @@ 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;
+  gdbarch_report_signal_info_ftype *report_signal_info;
   int sp_regnum;
   int pc_regnum;
   int ps_regnum;
@@ -250,6 +242,7 @@ struct gdbarch
   CORE_ADDR deprecated_function_start_offset;
   gdbarch_remote_register_number_ftype *remote_register_number;
   gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address;
+  gdbarch_get_thread_local_address_ftype *get_thread_local_address;
   CORE_ADDR frame_args_skip;
   gdbarch_unwind_pc_ftype *unwind_pc;
   gdbarch_unwind_sp_ftype *unwind_sp;
@@ -259,12 +252,14 @@ struct gdbarch
   int frame_red_zone_size;
   gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr;
   gdbarch_addr_bits_remove_ftype *addr_bits_remove;
+  int significant_addr_bit;
   gdbarch_software_single_step_ftype *software_single_step;
   gdbarch_single_step_through_delay_ftype *single_step_through_delay;
   gdbarch_print_insn_ftype *print_insn;
   gdbarch_skip_trampoline_code_ftype *skip_trampoline_code;
   gdbarch_skip_solib_resolver_ftype *skip_solib_resolver;
   gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline;
+  gdbarch_in_indirect_branch_thunk_ftype *in_indirect_branch_thunk;
   gdbarch_stack_frame_destroyed_p_ftype *stack_frame_destroyed_p;
   gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special;
   gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special;
@@ -281,12 +276,12 @@ struct gdbarch
   gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument;
   gdbarch_iterate_over_regset_sections_ftype *iterate_over_regset_sections;
   gdbarch_make_corefile_notes_ftype *make_corefile_notes;
-  gdbarch_elfcore_write_linux_prpsinfo_ftype *elfcore_write_linux_prpsinfo;
   gdbarch_find_memory_regions_ftype *find_memory_regions;
   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;
+  gdbarch_core_xfer_siginfo_ftype *core_xfer_siginfo;
   const char * gcore_bfd_target;
   int vtable_function_descriptors;
   int vbit_in_delta;
@@ -295,12 +290,10 @@ struct gdbarch
   gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn;
   gdbarch_displaced_step_hw_singlestep_ftype *displaced_step_hw_singlestep;
   gdbarch_displaced_step_fixup_ftype *displaced_step_fixup;
-  gdbarch_displaced_step_free_closure_ftype *displaced_step_free_closure;
   gdbarch_displaced_step_location_ftype *displaced_step_location;
   gdbarch_relocate_instruction_ftype *relocate_instruction;
   gdbarch_overlay_update_ftype *overlay_update;
   gdbarch_core_read_description_ftype *core_read_description;
-  gdbarch_static_transform_name_ftype *static_transform_name;
   int sofun_address_maybe_missing;
   gdbarch_process_record_ftype *process_record;
   gdbarch_process_record_signal_ftype *process_record_signal;
@@ -321,6 +314,7 @@ struct gdbarch
   const char * stap_gdb_register_suffix;
   gdbarch_stap_is_single_operand_ftype *stap_is_single_operand;
   gdbarch_stap_parse_special_token_ftype *stap_parse_special_token;
+  gdbarch_stap_adjust_register_ftype *stap_adjust_register;
   gdbarch_dtrace_parse_probe_argument_ftype *dtrace_parse_probe_argument;
   gdbarch_dtrace_probe_is_enabled_ftype *dtrace_probe_is_enabled;
   gdbarch_dtrace_enable_probe_ftype *dtrace_enable_probe;
@@ -342,6 +336,7 @@ struct gdbarch
   gdbarch_insn_is_call_ftype *insn_is_call;
   gdbarch_insn_is_ret_ftype *insn_is_ret;
   gdbarch_insn_is_jump_ftype *insn_is_jump;
+  gdbarch_program_breakpoint_here_p_ftype *program_breakpoint_here_p;
   gdbarch_auxv_parse_ftype *auxv_parse;
   gdbarch_print_auxv_entry_ftype *print_auxv_entry;
   gdbarch_vsyscall_range_ftype *vsyscall_range;
@@ -350,8 +345,12 @@ struct gdbarch
   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;
+  const char * disassembler_options_implicit;
   char ** disassembler_options;
-  const disasm_options_t * valid_disassembler_options;
+  const disasm_options_and_args_t * valid_disassembler_options;
+  gdbarch_type_align_ftype *type_align;
+  gdbarch_get_pc_address_flags_ftype *get_pc_address_flags;
+  gdbarch_read_core_file_mappings_ftype *read_core_file_mappings;
 };
 
 /* Create a new ``struct gdbarch'' based on information provided by
@@ -382,12 +381,11 @@ gdbarch_alloc (const struct gdbarch_info *info,
   gdbarch->target_desc = info->target_desc;
 
   /* Force the explicit initialization of these.  */
-  gdbarch->bits_big_endian = (gdbarch->byte_order == BFD_ENDIAN_BIG);
   gdbarch->short_bit = 2*TARGET_CHAR_BIT;
   gdbarch->int_bit = 4*TARGET_CHAR_BIT;
   gdbarch->long_bit = 4*TARGET_CHAR_BIT;
   gdbarch->long_long_bit = 2*gdbarch->long_bit;
-  gdbarch->long_long_align_bit = 2*gdbarch->long_bit;
+  gdbarch->bfloat16_bit = 2*TARGET_CHAR_BIT;
   gdbarch->half_bit = 2*TARGET_CHAR_BIT;
   gdbarch->float_bit = 4*TARGET_CHAR_BIT;
   gdbarch->double_bit = 8*TARGET_CHAR_BIT;
@@ -407,6 +405,7 @@ gdbarch_alloc (const struct gdbarch_info *info,
   gdbarch->ecoff_reg_to_regnum = no_op_reg_to_regnum;
   gdbarch->sdb_reg_to_regnum = no_op_reg_to_regnum;
   gdbarch->dwarf2_reg_to_regnum = no_op_reg_to_regnum;
+  gdbarch->dummy_id = default_dummy_id;
   gdbarch->deprecated_fp_regnum = -1;
   gdbarch->call_dummy_location = AT_ENTRY_POINT;
   gdbarch->code_of_frame_writable = default_code_of_frame_writable;
@@ -426,12 +425,16 @@ gdbarch_alloc (const struct gdbarch_info *info,
   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->unwind_pc = default_unwind_pc;
+  gdbarch->unwind_sp = default_unwind_sp;
   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;
+  gdbarch->in_indirect_branch_thunk = default_in_indirect_branch_thunk;
   gdbarch->stack_frame_destroyed_p = generic_stack_frame_destroyed_p;
   gdbarch->coff_make_msymbol_special = default_coff_make_msymbol_special;
   gdbarch->make_symbol_special = default_make_symbol_special;
@@ -442,7 +445,6 @@ gdbarch_alloc (const struct gdbarch_info *info,
   gdbarch->skip_permanent_breakpoint = default_skip_permanent_breakpoint;
   gdbarch->displaced_step_hw_singlestep = default_displaced_step_hw_singlestep;
   gdbarch->displaced_step_fixup = NULL;
-  gdbarch->displaced_step_free_closure = NULL;
   gdbarch->displaced_step_location = NULL;
   gdbarch->relocate_instruction = NULL;
   gdbarch->has_shared_address_space = default_has_shared_address_space;
@@ -456,6 +458,7 @@ 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->program_breakpoint_here_p = default_program_breakpoint_here_p;
   gdbarch->print_auxv_entry = default_print_auxv_entry;
   gdbarch->vsyscall_range = default_vsyscall_range;
   gdbarch->infcall_mmap = default_infcall_mmap;
@@ -463,21 +466,19 @@ gdbarch_alloc (const struct gdbarch_info *info,
   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->type_align = default_type_align;
+  gdbarch->get_pc_address_flags = default_get_pc_address_flags;
+  gdbarch->read_core_file_mappings = default_read_core_file_mappings;
   /* gdbarch_alloc() */
 
   return gdbarch;
 }
 
 
-/* Allocate extra space using the per-architecture obstack.  */
 
-void *
-gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
+obstack *gdbarch_obstack (gdbarch *arch)
 {
-  void *data = obstack_alloc (arch->obstack, size);
-
-  memset (data, 0, size);
-  return data;
+  return arch->obstack;
 }
 
 /* See gdbarch.h.  */
@@ -521,12 +522,13 @@ verify_gdbarch (struct gdbarch *gdbarch)
   if (gdbarch->bfd_arch_info == NULL)
     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 */
   /* Skip verify of int_bit, invalid_p == 0 */
   /* Skip verify of long_bit, invalid_p == 0 */
   /* Skip verify of long_long_bit, invalid_p == 0 */
-  /* Skip verify of long_long_align_bit, invalid_p == 0 */
+  /* Skip verify of bfloat16_bit, invalid_p == 0 */
+  if (gdbarch->bfloat16_format == 0)
+    gdbarch->bfloat16_format = floatformats_bfloat16;
   /* Skip verify of half_bit, invalid_p == 0 */
   if (gdbarch->half_format == 0)
     gdbarch->half_format = floatformats_ieee_half;
@@ -561,7 +563,7 @@ verify_gdbarch (struct gdbarch *gdbarch)
   /* 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 report_signal_info, 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 */
@@ -573,7 +575,7 @@ verify_gdbarch (struct gdbarch *gdbarch)
   if (gdbarch->register_name == 0)
     log.puts ("\n\tregister_name");
   /* Skip verify of register_type, has predicate.  */
-  /* Skip verify of dummy_id, has predicate.  */
+  /* Skip verify of dummy_id, invalid_p == 0 */
   /* 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 */
@@ -611,21 +613,23 @@ verify_gdbarch (struct gdbarch *gdbarch)
   /* Skip verify of deprecated_function_start_offset, invalid_p == 0 */
   /* Skip verify of remote_register_number, invalid_p == 0 */
   /* Skip verify of fetch_tls_load_module_address, has predicate.  */
+  /* Skip verify of get_thread_local_address, has predicate.  */
   /* Skip verify of frame_args_skip, invalid_p == 0 */
-  /* Skip verify of unwind_pc, has predicate.  */
-  /* Skip verify of unwind_sp, has predicate.  */
+  /* Skip verify of unwind_pc, invalid_p == 0 */
+  /* Skip verify of unwind_sp, invalid_p == 0 */
   /* Skip verify of frame_num_args, has predicate.  */
   /* Skip verify of frame_align, has predicate.  */
   /* Skip verify of stabs_argument_has_addr, invalid_p == 0 */
   /* Skip verify of convert_from_func_ptr_addr, invalid_p == 0 */
   /* Skip verify of addr_bits_remove, invalid_p == 0 */
+  /* Skip verify of significant_addr_bit, 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)
-    log.puts ("\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 */
+  /* Skip verify of in_indirect_branch_thunk, invalid_p == 0 */
   /* Skip verify of stack_frame_destroyed_p, invalid_p == 0 */
   /* Skip verify of elf_make_msymbol_special, has predicate.  */
   /* Skip verify of coff_make_msymbol_special, invalid_p == 0 */
@@ -642,12 +646,12 @@ verify_gdbarch (struct gdbarch *gdbarch)
   /* Skip verify of fetch_pointer_argument, has predicate.  */
   /* Skip verify of iterate_over_regset_sections, has predicate.  */
   /* Skip verify of make_corefile_notes, has predicate.  */
-  /* Skip verify of elfcore_write_linux_prpsinfo, has predicate.  */
   /* Skip verify of find_memory_regions, has predicate.  */
   /* 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 core_xfer_siginfo, 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 */
@@ -656,14 +660,11 @@ verify_gdbarch (struct gdbarch *gdbarch)
   /* Skip verify of displaced_step_copy_insn, has predicate.  */
   /* 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))
-    log.puts ("\n\tdisplaced_step_free_closure");
   if ((! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn))
     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.  */
-  /* Skip verify of static_transform_name, has predicate.  */
   /* Skip verify of sofun_address_maybe_missing, invalid_p == 0 */
   /* Skip verify of process_record, has predicate.  */
   /* Skip verify of process_record_signal, has predicate.  */
@@ -684,6 +685,7 @@ verify_gdbarch (struct gdbarch *gdbarch)
   /* Skip verify of stap_gdb_register_suffix, invalid_p == 0 */
   /* Skip verify of stap_is_single_operand, has predicate.  */
   /* Skip verify of stap_parse_special_token, has predicate.  */
+  /* Skip verify of stap_adjust_register, has predicate.  */
   /* Skip verify of dtrace_parse_probe_argument, has predicate.  */
   /* Skip verify of dtrace_probe_is_enabled, has predicate.  */
   /* Skip verify of dtrace_enable_probe, has predicate.  */
@@ -704,6 +706,7 @@ verify_gdbarch (struct gdbarch *gdbarch)
   /* Skip verify of insn_is_call, invalid_p == 0 */
   /* Skip verify of insn_is_ret, invalid_p == 0 */
   /* Skip verify of insn_is_jump, invalid_p == 0 */
+  /* Skip verify of program_breakpoint_here_p, 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 */
@@ -712,8 +715,12 @@ verify_gdbarch (struct gdbarch *gdbarch)
   /* Skip verify of gcc_target_options, invalid_p == 0 */
   /* Skip verify of gnu_triplet_regexp, invalid_p == 0 */
   /* Skip verify of addressable_memory_unit_size, invalid_p == 0 */
+  /* Skip verify of disassembler_options_implicit, invalid_p == 0 */
   /* Skip verify of disassembler_options, invalid_p == 0 */
   /* Skip verify of valid_disassembler_options, invalid_p == 0 */
+  /* Skip verify of type_align, invalid_p == 0 */
+  /* Skip verify of get_pc_address_flags, invalid_p == 0 */
+  /* Skip verify of read_core_file_mappings, invalid_p == 0 */
   if (!log.empty ())
     internal_error (__FILE__, __LINE__,
                     _("verify_gdbarch: the following are invalid ...%s"),
@@ -807,8 +814,11 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
                       "gdbarch_dump: bfd_arch_info = %s\n",
                       gdbarch_bfd_arch_info (gdbarch)->printable_name);
   fprintf_unfiltered (file,
-                      "gdbarch_dump: bits_big_endian = %s\n",
-                      plongest (gdbarch->bits_big_endian));
+                      "gdbarch_dump: bfloat16_bit = %s\n",
+                      plongest (gdbarch->bfloat16_bit));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: bfloat16_format = %s\n",
+                      pformat (gdbarch->bfloat16_format));
   fprintf_unfiltered (file,
                       "gdbarch_dump: breakpoint_from_pc = <%s>\n",
                       host_address_to_string (gdbarch->breakpoint_from_pc));
@@ -887,6 +897,12 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: core_xfer_shared_libraries_aix = <%s>\n",
                       host_address_to_string (gdbarch->core_xfer_shared_libraries_aix));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: gdbarch_core_xfer_siginfo_p() = %d\n",
+                      gdbarch_core_xfer_siginfo_p (gdbarch));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: core_xfer_siginfo = <%s>\n",
+                      host_address_to_string (gdbarch->core_xfer_siginfo));
   fprintf_unfiltered (file,
                       "gdbarch_dump: decr_pc_after_break = %s\n",
                       core_addr_to_string_nz (gdbarch->decr_pc_after_break));
@@ -899,6 +915,9 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: disassembler_options = %s\n",
                       pstring_ptr (gdbarch->disassembler_options));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: disassembler_options_implicit = %s\n",
+                      pstring (gdbarch->disassembler_options_implicit));
   fprintf_unfiltered (file,
                       "gdbarch_dump: gdbarch_displaced_step_copy_insn_p() = %d\n",
                       gdbarch_displaced_step_copy_insn_p (gdbarch));
@@ -911,9 +930,6 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: displaced_step_fixup = <%s>\n",
                       host_address_to_string (gdbarch->displaced_step_fixup));
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: displaced_step_free_closure = <%s>\n",
-                      host_address_to_string (gdbarch->displaced_step_free_closure));
   fprintf_unfiltered (file,
                       "gdbarch_dump: displaced_step_hw_singlestep = <%s>\n",
                       host_address_to_string (gdbarch->displaced_step_hw_singlestep));
@@ -950,9 +966,6 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: dtrace_probe_is_enabled = <%s>\n",
                       host_address_to_string (gdbarch->dtrace_probe_is_enabled));
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: gdbarch_dummy_id_p() = %d\n",
-                      gdbarch_dummy_id_p (gdbarch));
   fprintf_unfiltered (file,
                       "gdbarch_dump: dummy_id = <%s>\n",
                       host_address_to_string (gdbarch->dummy_id));
@@ -971,12 +984,6 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: elf_make_msymbol_special = <%s>\n",
                       host_address_to_string (gdbarch->elf_make_msymbol_special));
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: gdbarch_elfcore_write_linux_prpsinfo_p() = %d\n",
-                      gdbarch_elfcore_write_linux_prpsinfo_p (gdbarch));
-  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));
@@ -1061,6 +1068,9 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: get_longjmp_target = <%s>\n",
                       host_address_to_string (gdbarch->get_longjmp_target));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: get_pc_address_flags = <%s>\n",
+                      host_address_to_string (gdbarch->get_pc_address_flags));
   fprintf_unfiltered (file,
                       "gdbarch_dump: gdbarch_get_siginfo_type_p() = %d\n",
                       gdbarch_get_siginfo_type_p (gdbarch));
@@ -1073,6 +1083,12 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: get_syscall_number = <%s>\n",
                       host_address_to_string (gdbarch->get_syscall_number));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: gdbarch_get_thread_local_address_p() = %d\n",
+                      gdbarch_get_thread_local_address_p (gdbarch));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: get_thread_local_address = <%s>\n",
+                      host_address_to_string (gdbarch->get_thread_local_address));
   fprintf_unfiltered (file,
                       "gdbarch_dump: gnu_triplet_regexp = <%s>\n",
                       host_address_to_string (gdbarch->gnu_triplet_regexp));
@@ -1085,12 +1101,6 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   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));
@@ -1106,6 +1116,9 @@ 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: in_indirect_branch_thunk = <%s>\n",
+                      host_address_to_string (gdbarch->in_indirect_branch_thunk));
   fprintf_unfiltered (file,
                       "gdbarch_dump: in_solib_return_trampoline = <%s>\n",
                       host_address_to_string (gdbarch->in_solib_return_trampoline));
@@ -1160,9 +1173,6 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: long_double_format = %s\n",
                       pformat (gdbarch->long_double_format));
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: long_long_align_bit = %s\n",
-                      plongest (gdbarch->long_long_align_bit));
   fprintf_unfiltered (file,
                       "gdbarch_dump: long_long_bit = %s\n",
                       plongest (gdbarch->long_long_bit));
@@ -1238,6 +1248,9 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: process_record_signal = <%s>\n",
                       host_address_to_string (gdbarch->process_record_signal));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: program_breakpoint_here_p = <%s>\n",
+                      host_address_to_string (gdbarch->program_breakpoint_here_p));
   fprintf_unfiltered (file,
                       "gdbarch_dump: ps_regnum = %s\n",
                       plongest (gdbarch->ps_regnum));
@@ -1277,6 +1290,9 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: ravenscar_ops = %s\n",
                       host_address_to_string (gdbarch->ravenscar_ops));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: read_core_file_mappings = <%s>\n",
+                      host_address_to_string (gdbarch->read_core_file_mappings));
   fprintf_unfiltered (file,
                       "gdbarch_dump: gdbarch_read_pc_p() = %d\n",
                       gdbarch_read_pc_p (gdbarch));
@@ -1316,6 +1332,12 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: remote_register_number = <%s>\n",
                       host_address_to_string (gdbarch->remote_register_number));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: gdbarch_report_signal_info_p() = %d\n",
+                      gdbarch_report_signal_info_p (gdbarch));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: report_signal_info = <%s>\n",
+                      host_address_to_string (gdbarch->report_signal_info));
   fprintf_unfiltered (file,
                       "gdbarch_dump: return_in_first_hidden_param_p = <%s>\n",
                       host_address_to_string (gdbarch->return_in_first_hidden_param_p));
@@ -1331,6 +1353,9 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: short_bit = %s\n",
                       plongest (gdbarch->short_bit));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: significant_addr_bit = %s\n",
+                      plongest (gdbarch->significant_addr_bit));
   fprintf_unfiltered (file,
                       "gdbarch_dump: gdbarch_single_step_through_delay_p() = %d\n",
                       gdbarch_single_step_through_delay_p (gdbarch));
@@ -1385,6 +1410,12 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   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: gdbarch_stap_adjust_register_p() = %d\n",
+                      gdbarch_stap_adjust_register_p (gdbarch));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: stap_adjust_register = <%s>\n",
+                      host_address_to_string (gdbarch->stap_adjust_register));
   fprintf_unfiltered (file,
                       "gdbarch_dump: stap_gdb_register_prefix = %s\n",
                       pstring (gdbarch->stap_gdb_register_prefix));
@@ -1421,12 +1452,6 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: stap_register_suffixes = %s\n",
                       pstring_list (gdbarch->stap_register_suffixes));
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: gdbarch_static_transform_name_p() = %d\n",
-                      gdbarch_static_transform_name_p (gdbarch));
-  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));
@@ -1437,14 +1462,11 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
                       "gdbarch_dump: target_desc = %s\n",
                       host_address_to_string (gdbarch->target_desc));
   fprintf_unfiltered (file,
-                      "gdbarch_dump: gdbarch_unwind_pc_p() = %d\n",
-                      gdbarch_unwind_pc_p (gdbarch));
+                      "gdbarch_dump: type_align = <%s>\n",
+                      host_address_to_string (gdbarch->type_align));
   fprintf_unfiltered (file,
                       "gdbarch_dump: unwind_pc = <%s>\n",
                       host_address_to_string (gdbarch->unwind_pc));
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: gdbarch_unwind_sp_p() = %d\n",
-                      gdbarch_unwind_sp_p (gdbarch));
   fprintf_unfiltered (file,
                       "gdbarch_dump: unwind_sp = <%s>\n",
                       host_address_to_string (gdbarch->unwind_sp));
@@ -1542,23 +1564,6 @@ gdbarch_target_desc (struct gdbarch *gdbarch)
   return gdbarch->target_desc;
 }
 
-int
-gdbarch_bits_big_endian (struct gdbarch *gdbarch)
-{
-  gdb_assert (gdbarch != NULL);
-  /* Skip verify of bits_big_endian, invalid_p == 0 */
-  if (gdbarch_debug >= 2)
-    fprintf_unfiltered (gdb_stdlog, "gdbarch_bits_big_endian called\n");
-  return gdbarch->bits_big_endian;
-}
-
-void
-set_gdbarch_bits_big_endian (struct gdbarch *gdbarch,
-                             int bits_big_endian)
-{
-  gdbarch->bits_big_endian = bits_big_endian;
-}
-
 int
 gdbarch_short_bit (struct gdbarch *gdbarch)
 {
@@ -1628,20 +1633,36 @@ set_gdbarch_long_long_bit (struct gdbarch *gdbarch,
 }
 
 int
-gdbarch_long_long_align_bit (struct gdbarch *gdbarch)
+gdbarch_bfloat16_bit (struct gdbarch *gdbarch)
 {
   gdb_assert (gdbarch != NULL);
-  /* Skip verify of long_long_align_bit, invalid_p == 0 */
+  /* Skip verify of bfloat16_bit, invalid_p == 0 */
   if (gdbarch_debug >= 2)
-    fprintf_unfiltered (gdb_stdlog, "gdbarch_long_long_align_bit called\n");
-  return gdbarch->long_long_align_bit;
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_bfloat16_bit called\n");
+  return gdbarch->bfloat16_bit;
 }
 
 void
-set_gdbarch_long_long_align_bit (struct gdbarch *gdbarch,
-                                 int long_long_align_bit)
+set_gdbarch_bfloat16_bit (struct gdbarch *gdbarch,
+                          int bfloat16_bit)
 {
-  gdbarch->long_long_align_bit = long_long_align_bit;
+  gdbarch->bfloat16_bit = bfloat16_bit;
+}
+
+const struct floatformat **
+gdbarch_bfloat16_format (struct gdbarch *gdbarch)
+{
+  gdb_assert (gdbarch != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_bfloat16_format called\n");
+  return gdbarch->bfloat16_format;
+}
+
+void
+set_gdbarch_bfloat16_format (struct gdbarch *gdbarch,
+                             const struct floatformat ** bfloat16_format)
+{
+  gdbarch->bfloat16_format = bfloat16_format;
 }
 
 int
@@ -1907,7 +1928,7 @@ gdbarch_read_pc_p (struct gdbarch *gdbarch)
 }
 
 CORE_ADDR
-gdbarch_read_pc (struct gdbarch *gdbarch, struct regcache *regcache)
+gdbarch_read_pc (struct gdbarch *gdbarch, readable_regcache *regcache)
 {
   gdb_assert (gdbarch != NULL);
   gdb_assert (gdbarch->read_pc != NULL);
@@ -1972,7 +1993,7 @@ gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch)
 }
 
 enum register_status
-gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf)
+gdbarch_pseudo_register_read (struct gdbarch *gdbarch, readable_regcache *regcache, int cookednum, gdb_byte *buf)
 {
   gdb_assert (gdbarch != NULL);
   gdb_assert (gdbarch->pseudo_register_read != NULL);
@@ -1996,7 +2017,7 @@ gdbarch_pseudo_register_read_value_p (struct gdbarch *gdbarch)
 }
 
 struct value *
-gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum)
+gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, readable_regcache *regcache, int cookednum)
 {
   gdb_assert (gdbarch != NULL);
   gdb_assert (gdbarch->pseudo_register_read_value != NULL);
@@ -2120,27 +2141,27 @@ set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch,
 }
 
 int
-gdbarch_handle_segmentation_fault_p (struct gdbarch *gdbarch)
+gdbarch_report_signal_info_p (struct gdbarch *gdbarch)
 {
   gdb_assert (gdbarch != NULL);
-  return gdbarch->handle_segmentation_fault != NULL;
+  return gdbarch->report_signal_info != NULL;
 }
 
 void
-gdbarch_handle_segmentation_fault (struct gdbarch *gdbarch, struct ui_out *uiout)
+gdbarch_report_signal_info (struct gdbarch *gdbarch, struct ui_out *uiout, enum gdb_signal siggnal)
 {
   gdb_assert (gdbarch != NULL);
-  gdb_assert (gdbarch->handle_segmentation_fault != NULL);
+  gdb_assert (gdbarch->report_signal_info != NULL);
   if (gdbarch_debug >= 2)
-    fprintf_unfiltered (gdb_stdlog, "gdbarch_handle_segmentation_fault called\n");
-  gdbarch->handle_segmentation_fault (gdbarch, uiout);
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_report_signal_info called\n");
+  gdbarch->report_signal_info (gdbarch, uiout, siggnal);
 }
 
 void
-set_gdbarch_handle_segmentation_fault (struct gdbarch *gdbarch,
-                                       gdbarch_handle_segmentation_fault_ftype handle_segmentation_fault)
+set_gdbarch_report_signal_info (struct gdbarch *gdbarch,
+                                gdbarch_report_signal_info_ftype report_signal_info)
 {
-  gdbarch->handle_segmentation_fault = handle_segmentation_fault;
+  gdbarch->report_signal_info = report_signal_info;
 }
 
 int
@@ -2320,13 +2341,6 @@ set_gdbarch_register_type (struct gdbarch *gdbarch,
   gdbarch->register_type = register_type;
 }
 
-int
-gdbarch_dummy_id_p (struct gdbarch *gdbarch)
-{
-  gdb_assert (gdbarch != NULL);
-  return gdbarch->dummy_id != NULL;
-}
-
 struct frame_id
 gdbarch_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
 {
@@ -2369,13 +2383,13 @@ gdbarch_push_dummy_call_p (struct gdbarch *gdbarch)
 }
 
 CORE_ADDR
-gdbarch_push_dummy_call (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr)
+gdbarch_push_dummy_call (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, function_call_return_method return_method, CORE_ADDR struct_addr)
 {
   gdb_assert (gdbarch != NULL);
   gdb_assert (gdbarch->push_dummy_call != NULL);
   if (gdbarch_debug >= 2)
     fprintf_unfiltered (gdb_stdlog, "gdbarch_push_dummy_call called\n");
-  return gdbarch->push_dummy_call (gdbarch, function, regcache, bp_addr, nargs, args, sp, struct_return, struct_addr);
+  return gdbarch->push_dummy_call (gdbarch, function, regcache, bp_addr, nargs, args, sp, return_method, struct_addr);
 }
 
 void
@@ -3042,6 +3056,30 @@ set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch,
   gdbarch->fetch_tls_load_module_address = fetch_tls_load_module_address;
 }
 
+int
+gdbarch_get_thread_local_address_p (struct gdbarch *gdbarch)
+{
+  gdb_assert (gdbarch != NULL);
+  return gdbarch->get_thread_local_address != NULL;
+}
+
+CORE_ADDR
+gdbarch_get_thread_local_address (struct gdbarch *gdbarch, ptid_t ptid, CORE_ADDR lm_addr, CORE_ADDR offset)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->get_thread_local_address != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_get_thread_local_address called\n");
+  return gdbarch->get_thread_local_address (gdbarch, ptid, lm_addr, offset);
+}
+
+void
+set_gdbarch_get_thread_local_address (struct gdbarch *gdbarch,
+                                      gdbarch_get_thread_local_address_ftype get_thread_local_address)
+{
+  gdbarch->get_thread_local_address = get_thread_local_address;
+}
+
 CORE_ADDR
 gdbarch_frame_args_skip (struct gdbarch *gdbarch)
 {
@@ -3059,13 +3097,6 @@ set_gdbarch_frame_args_skip (struct gdbarch *gdbarch,
   gdbarch->frame_args_skip = frame_args_skip;
 }
 
-int
-gdbarch_unwind_pc_p (struct gdbarch *gdbarch)
-{
-  gdb_assert (gdbarch != NULL);
-  return gdbarch->unwind_pc != NULL;
-}
-
 CORE_ADDR
 gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
 {
@@ -3083,13 +3114,6 @@ set_gdbarch_unwind_pc (struct gdbarch *gdbarch,
   gdbarch->unwind_pc = unwind_pc;
 }
 
-int
-gdbarch_unwind_sp_p (struct gdbarch *gdbarch)
-{
-  gdb_assert (gdbarch != NULL);
-  return gdbarch->unwind_sp != NULL;
-}
-
 CORE_ADDR
 gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame)
 {
@@ -3222,6 +3246,23 @@ set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch,
   gdbarch->addr_bits_remove = addr_bits_remove;
 }
 
+int
+gdbarch_significant_addr_bit (struct gdbarch *gdbarch)
+{
+  gdb_assert (gdbarch != NULL);
+  /* Skip verify of significant_addr_bit, invalid_p == 0 */
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_significant_addr_bit called\n");
+  return gdbarch->significant_addr_bit;
+}
+
+void
+set_gdbarch_significant_addr_bit (struct gdbarch *gdbarch,
+                                  int significant_addr_bit)
+{
+  gdbarch->significant_addr_bit = significant_addr_bit;
+}
+
 int
 gdbarch_software_single_step_p (struct gdbarch *gdbarch)
 {
@@ -3229,7 +3270,7 @@ gdbarch_software_single_step_p (struct gdbarch *gdbarch)
   return gdbarch->software_single_step != NULL;
 }
 
-VEC (CORE_ADDR) *
+std::vector<CORE_ADDR>
 gdbarch_software_single_step (struct gdbarch *gdbarch, struct regcache *regcache)
 {
   gdb_assert (gdbarch != NULL);
@@ -3338,6 +3379,23 @@ set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch,
   gdbarch->in_solib_return_trampoline = in_solib_return_trampoline;
 }
 
+bool
+gdbarch_in_indirect_branch_thunk (struct gdbarch *gdbarch, CORE_ADDR pc)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->in_indirect_branch_thunk != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_in_indirect_branch_thunk called\n");
+  return gdbarch->in_indirect_branch_thunk (gdbarch, pc);
+}
+
+void
+set_gdbarch_in_indirect_branch_thunk (struct gdbarch *gdbarch,
+                                      gdbarch_in_indirect_branch_thunk_ftype in_indirect_branch_thunk)
+{
+  gdbarch->in_indirect_branch_thunk = in_indirect_branch_thunk;
+}
+
 int
 gdbarch_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR addr)
 {
@@ -3488,7 +3546,7 @@ gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch)
   return gdbarch->address_class_type_flags != NULL;
 }
 
-int
+type_instance_flags
 gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class)
 {
   gdb_assert (gdbarch != NULL);
@@ -3513,7 +3571,7 @@ gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch)
 }
 
 const char *
-gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags)
+gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, type_instance_flags type_flags)
 {
   gdb_assert (gdbarch != NULL);
   gdb_assert (gdbarch->address_class_type_flags_to_name != NULL);
@@ -3553,8 +3611,8 @@ gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch)
   return gdbarch->address_class_name_to_type_flags != NULL;
 }
 
-int
-gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr)
+bool
+gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, type_instance_flags *type_flags_ptr)
 {
   gdb_assert (gdbarch != NULL);
   gdb_assert (gdbarch->address_class_name_to_type_flags != NULL);
@@ -3659,30 +3717,6 @@ set_gdbarch_make_corefile_notes (struct gdbarch *gdbarch,
   gdbarch->make_corefile_notes = make_corefile_notes;
 }
 
-int
-gdbarch_elfcore_write_linux_prpsinfo_p (struct gdbarch *gdbarch)
-{
-  gdb_assert (gdbarch != NULL);
-  return gdbarch->elfcore_write_linux_prpsinfo != NULL;
-}
-
-char *
-gdbarch_elfcore_write_linux_prpsinfo (struct gdbarch *gdbarch, bfd *obfd, char *note_data, int *note_size, const struct elf_internal_linux_prpsinfo *info)
-{
-  gdb_assert (gdbarch != NULL);
-  gdb_assert (gdbarch->elfcore_write_linux_prpsinfo != NULL);
-  if (gdbarch_debug >= 2)
-    fprintf_unfiltered (gdb_stdlog, "gdbarch_elfcore_write_linux_prpsinfo called\n");
-  return gdbarch->elfcore_write_linux_prpsinfo (obfd, note_data, note_size, info);
-}
-
-void
-set_gdbarch_elfcore_write_linux_prpsinfo (struct gdbarch *gdbarch,
-                                          gdbarch_elfcore_write_linux_prpsinfo_ftype elfcore_write_linux_prpsinfo)
-{
-  gdbarch->elfcore_write_linux_prpsinfo = elfcore_write_linux_prpsinfo;
-}
-
 int
 gdbarch_find_memory_regions_p (struct gdbarch *gdbarch)
 {
@@ -3762,7 +3796,7 @@ gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch)
   return gdbarch->core_pid_to_str != NULL;
 }
 
-const char *
+std::string
 gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid)
 {
   gdb_assert (gdbarch != NULL);
@@ -3803,6 +3837,30 @@ set_gdbarch_core_thread_name (struct gdbarch *gdbarch,
   gdbarch->core_thread_name = core_thread_name;
 }
 
+int
+gdbarch_core_xfer_siginfo_p (struct gdbarch *gdbarch)
+{
+  gdb_assert (gdbarch != NULL);
+  return gdbarch->core_xfer_siginfo != NULL;
+}
+
+LONGEST
+gdbarch_core_xfer_siginfo (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->core_xfer_siginfo != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_core_xfer_siginfo called\n");
+  return gdbarch->core_xfer_siginfo (gdbarch,  readbuf, offset, len);
+}
+
+void
+set_gdbarch_core_xfer_siginfo (struct gdbarch *gdbarch,
+                               gdbarch_core_xfer_siginfo_ftype core_xfer_siginfo)
+{
+  gdbarch->core_xfer_siginfo = core_xfer_siginfo;
+}
+
 int
 gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch)
 {
@@ -3911,7 +3969,7 @@ gdbarch_displaced_step_copy_insn_p (struct gdbarch *gdbarch)
   return gdbarch->displaced_step_copy_insn != NULL;
 }
 
-struct displaced_step_closure *
+displaced_step_closure_up
 gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs)
 {
   gdb_assert (gdbarch != NULL);
@@ -3970,23 +4028,6 @@ set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch,
   gdbarch->displaced_step_fixup = displaced_step_fixup;
 }
 
-void
-gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, struct displaced_step_closure *closure)
-{
-  gdb_assert (gdbarch != NULL);
-  gdb_assert (gdbarch->displaced_step_free_closure != NULL);
-  if (gdbarch_debug >= 2)
-    fprintf_unfiltered (gdb_stdlog, "gdbarch_displaced_step_free_closure called\n");
-  gdbarch->displaced_step_free_closure (gdbarch, closure);
-}
-
-void
-set_gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch,
-                                         gdbarch_displaced_step_free_closure_ftype displaced_step_free_closure)
-{
-  gdbarch->displaced_step_free_closure = displaced_step_free_closure;
-}
-
 CORE_ADDR
 gdbarch_displaced_step_location (struct gdbarch *gdbarch)
 {
@@ -4077,30 +4118,6 @@ set_gdbarch_core_read_description (struct gdbarch *gdbarch,
   gdbarch->core_read_description = core_read_description;
 }
 
-int
-gdbarch_static_transform_name_p (struct gdbarch *gdbarch)
-{
-  gdb_assert (gdbarch != NULL);
-  return gdbarch->static_transform_name != NULL;
-}
-
-const char *
-gdbarch_static_transform_name (struct gdbarch *gdbarch, const char *name)
-{
-  gdb_assert (gdbarch != NULL);
-  gdb_assert (gdbarch->static_transform_name != NULL);
-  if (gdbarch_debug >= 2)
-    fprintf_unfiltered (gdb_stdlog, "gdbarch_static_transform_name called\n");
-  return gdbarch->static_transform_name (name);
-}
-
-void
-set_gdbarch_static_transform_name (struct gdbarch *gdbarch,
-                                   gdbarch_static_transform_name_ftype static_transform_name)
-{
-  gdbarch->static_transform_name = static_transform_name;
-}
-
 int
 gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch)
 {
@@ -4270,13 +4287,13 @@ gdbarch_get_syscall_number_p (struct gdbarch *gdbarch)
 }
 
 LONGEST
-gdbarch_get_syscall_number (struct gdbarch *gdbarch, ptid_t ptid)
+gdbarch_get_syscall_number (struct gdbarch *gdbarch, thread_info *thread)
 {
   gdb_assert (gdbarch != NULL);
   gdb_assert (gdbarch->get_syscall_number != NULL);
   if (gdbarch_debug >= 2)
     fprintf_unfiltered (gdb_stdlog, "gdbarch_get_syscall_number called\n");
-  return gdbarch->get_syscall_number (gdbarch, ptid);
+  return gdbarch->get_syscall_number (gdbarch, thread);
 }
 
 void
@@ -4504,6 +4521,30 @@ set_gdbarch_stap_parse_special_token (struct gdbarch *gdbarch,
   gdbarch->stap_parse_special_token = stap_parse_special_token;
 }
 
+int
+gdbarch_stap_adjust_register_p (struct gdbarch *gdbarch)
+{
+  gdb_assert (gdbarch != NULL);
+  return gdbarch->stap_adjust_register != NULL;
+}
+
+std::string
+gdbarch_stap_adjust_register (struct gdbarch *gdbarch, struct stap_parse_info *p, const std::string &regname, int regnum)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->stap_adjust_register != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_stap_adjust_register called\n");
+  return gdbarch->stap_adjust_register (gdbarch, p, regname, regnum);
+}
+
+void
+set_gdbarch_stap_adjust_register (struct gdbarch *gdbarch,
+                                  gdbarch_stap_adjust_register_ftype stap_adjust_register)
+{
+  gdbarch->stap_adjust_register = stap_adjust_register;
+}
+
 int
 gdbarch_dtrace_parse_probe_argument_p (struct gdbarch *gdbarch)
 {
@@ -4512,13 +4553,13 @@ gdbarch_dtrace_parse_probe_argument_p (struct gdbarch *gdbarch)
 }
 
 void
-gdbarch_dtrace_parse_probe_argument (struct gdbarch *gdbarch, struct parser_state *pstate, int narg)
+gdbarch_dtrace_parse_probe_argument (struct gdbarch *gdbarch, struct expr_builder *builder, int narg)
 {
   gdb_assert (gdbarch != NULL);
   gdb_assert (gdbarch->dtrace_parse_probe_argument != NULL);
   if (gdbarch_debug >= 2)
     fprintf_unfiltered (gdb_stdlog, "gdbarch_dtrace_parse_probe_argument called\n");
-  gdbarch->dtrace_parse_probe_argument (gdbarch, pstate, narg);
+  gdbarch->dtrace_parse_probe_argument (gdbarch, builder, narg);
 }
 
 void
@@ -4652,7 +4693,7 @@ set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch,
 }
 
 int
-gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, char **msg)
+gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, std::string *msg)
 {
   gdb_assert (gdbarch != NULL);
   gdb_assert (gdbarch->fast_tracepoint_valid_at != NULL);
@@ -4902,6 +4943,23 @@ set_gdbarch_insn_is_jump (struct gdbarch *gdbarch,
   gdbarch->insn_is_jump = insn_is_jump;
 }
 
+bool
+gdbarch_program_breakpoint_here_p (struct gdbarch *gdbarch, CORE_ADDR address)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->program_breakpoint_here_p != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_program_breakpoint_here_p called\n");
+  return gdbarch->program_breakpoint_here_p (gdbarch, address);
+}
+
+void
+set_gdbarch_program_breakpoint_here_p (struct gdbarch *gdbarch,
+                                       gdbarch_program_breakpoint_here_p_ftype program_breakpoint_here_p)
+{
+  gdbarch->program_breakpoint_here_p = program_breakpoint_here_p;
+}
+
 int
 gdbarch_auxv_parse_p (struct gdbarch *gdbarch)
 {
@@ -4994,7 +5052,7 @@ set_gdbarch_infcall_munmap (struct gdbarch *gdbarch,
   gdbarch->infcall_munmap = infcall_munmap;
 }
 
-char *
+std::string
 gdbarch_gcc_target_options (struct gdbarch *gdbarch)
 {
   gdb_assert (gdbarch != NULL);
@@ -5045,6 +5103,23 @@ set_gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch,
   gdbarch->addressable_memory_unit_size = addressable_memory_unit_size;
 }
 
+const char *
+gdbarch_disassembler_options_implicit (struct gdbarch *gdbarch)
+{
+  gdb_assert (gdbarch != NULL);
+  /* Skip verify of disassembler_options_implicit, invalid_p == 0 */
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_disassembler_options_implicit called\n");
+  return gdbarch->disassembler_options_implicit;
+}
+
+void
+set_gdbarch_disassembler_options_implicit (struct gdbarch *gdbarch,
+                                           const char * disassembler_options_implicit)
+{
+  gdbarch->disassembler_options_implicit = disassembler_options_implicit;
+}
+
 char **
 gdbarch_disassembler_options (struct gdbarch *gdbarch)
 {
@@ -5062,7 +5137,7 @@ set_gdbarch_disassembler_options (struct gdbarch *gdbarch,
   gdbarch->disassembler_options = disassembler_options;
 }
 
-const disasm_options_t *
+const disasm_options_and_args_t *
 gdbarch_valid_disassembler_options (struct gdbarch *gdbarch)
 {
   gdb_assert (gdbarch != NULL);
@@ -5074,11 +5149,62 @@ gdbarch_valid_disassembler_options (struct gdbarch *gdbarch)
 
 void
 set_gdbarch_valid_disassembler_options (struct gdbarch *gdbarch,
-                                        const disasm_options_t * valid_disassembler_options)
+                                        const disasm_options_and_args_t * valid_disassembler_options)
 {
   gdbarch->valid_disassembler_options = valid_disassembler_options;
 }
 
+ULONGEST
+gdbarch_type_align (struct gdbarch *gdbarch, struct type *type)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->type_align != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_type_align called\n");
+  return gdbarch->type_align (gdbarch, type);
+}
+
+void
+set_gdbarch_type_align (struct gdbarch *gdbarch,
+                        gdbarch_type_align_ftype type_align)
+{
+  gdbarch->type_align = type_align;
+}
+
+std::string
+gdbarch_get_pc_address_flags (struct gdbarch *gdbarch, frame_info *frame, CORE_ADDR pc)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->get_pc_address_flags != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_get_pc_address_flags called\n");
+  return gdbarch->get_pc_address_flags (frame, pc);
+}
+
+void
+set_gdbarch_get_pc_address_flags (struct gdbarch *gdbarch,
+                                  gdbarch_get_pc_address_flags_ftype get_pc_address_flags)
+{
+  gdbarch->get_pc_address_flags = get_pc_address_flags;
+}
+
+void
+gdbarch_read_core_file_mappings (struct gdbarch *gdbarch, struct bfd *cbfd,gdb::function_view<void (ULONGEST count)> pre_loop_cb,gdb::function_view<void (int num, ULONGEST start, ULONGEST end, ULONGEST file_ofs, const char *filename, const void *other)> loop_cb)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->read_core_file_mappings != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_read_core_file_mappings called\n");
+  gdbarch->read_core_file_mappings (gdbarch, cbfd, pre_loop_cb, loop_cb);
+}
+
+void
+set_gdbarch_read_core_file_mappings (struct gdbarch *gdbarch,
+                                     gdbarch_read_core_file_mappings_ftype read_core_file_mappings)
+{
+  gdbarch->read_core_file_mappings = read_core_file_mappings;
+}
+
 
 /* Keep a registry of per-architecture data-pointers required by GDB
    modules.  */
@@ -5150,20 +5276,6 @@ alloc_gdbarch_data (struct gdbarch *gdbarch)
   gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
 }
 
-/* Initialize the current value of the specified per-architecture
-   data-pointer.  */
-
-void
-deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
-                            struct gdbarch_data *data,
-                            void *pointer)
-{
-  gdb_assert (data->index < gdbarch->nr_data);
-  gdb_assert (gdbarch->data[data->index] == NULL);
-  gdb_assert (data->pre_init == NULL);
-  gdbarch->data[data->index] = pointer;
-}
-
 /* Return the current value of the specified per-architecture
    data-pointer.  */
 
@@ -5193,11 +5305,9 @@ gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
          data->init_p = 1;
        }
       else
-       /* The architecture initialization hasn't completed - punt -
-        hope that the caller knows what they are doing.  Once
-        deprecated_set_gdbarch_data has been initialized, this can be
-        changed to an internal error.  */
-       return NULL;
+       internal_error (__FILE__, __LINE__,
+                       _("gdbarch post-init data field can only be used "
+                         "after gdbarch is fully initialised"));
       gdb_assert (gdbarch->data[data->index] != NULL);
     }
   return gdbarch->data[data->index];
@@ -5459,7 +5569,7 @@ set_target_gdbarch (struct gdbarch *new_gdbarch)
   gdb_assert (new_gdbarch != NULL);
   gdb_assert (new_gdbarch->initialized_p);
   current_inferior ()->gdbarch = new_gdbarch;
-  observer_notify_architecture_changed (new_gdbarch);
+  gdb::observers::architecture_changed.notify (new_gdbarch);
   registers_changed ();
 }
 
@@ -5471,10 +5581,9 @@ target_gdbarch (void)
   return current_inferior ()->gdbarch;
 }
 
-extern void _initialize_gdbarch (void);
-
+void _initialize_gdbarch ();
 void
-_initialize_gdbarch (void)
+_initialize_gdbarch ()
 {
   add_setshow_zuinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\
 Set architecture debugging."), _("\
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