2007-06-06 Markus Deuling <deuling@de.ibm.com>
[platform/upstream/binutils.git] / gdb / gdbarch.c
index cad6e04..8e8b8e2 100644 (file)
@@ -2,8 +2,8 @@
 
 /* Dynamic architecture support for GDB, the GNU debugger.
 
-   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free
-   Software Foundation, Inc.
+   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+   Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -39,7 +39,7 @@
 #include "arch-utils.h"
 
 #include "gdbcmd.h"
-#include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
+#include "inferior.h" 
 #include "symcat.h"
 
 #include "floatformat.h"
@@ -69,12 +69,13 @@ show_gdbarch_debug (struct ui_file *file, int from_tty,
 }
 
 static const char *
-pformat (const struct floatformat *format)
+pformat (const struct floatformat **format)
 {
   if (format == NULL)
     return "(null)";
   else
-    return  format->name;
+    /* Just print out one of them - this is only for diagnostics.  */
+    return format[0]->name;
 }
 
 
@@ -92,6 +93,7 @@ struct gdbarch
   const struct bfd_arch_info * bfd_arch_info;
   int byte_order;
   enum gdb_osabi osabi;
+  const struct target_desc * target_desc;
 
   /* target specific vector. */
   struct gdbarch_tdep *tdep;
@@ -135,18 +137,17 @@ struct gdbarch
   int long_bit;
   int long_long_bit;
   int float_bit;
-  const struct floatformat * float_format;
+  const struct floatformat ** float_format;
   int double_bit;
-  const struct floatformat * double_format;
+  const struct floatformat ** double_format;
   int long_double_bit;
-  const struct floatformat * long_double_format;
+  const struct floatformat ** long_double_format;
   int ptr_bit;
   int addr_bit;
   int bfd_vma_bit;
   int char_signed;
   gdbarch_read_pc_ftype *read_pc;
   gdbarch_write_pc_ftype *write_pc;
-  gdbarch_read_sp_ftype *read_sp;
   gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer;
   gdbarch_pseudo_register_read_ftype *pseudo_register_read;
   gdbarch_pseudo_register_write_ftype *pseudo_register_write;
@@ -163,7 +164,6 @@ struct gdbarch
   gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum;
   gdbarch_register_name_ftype *register_name;
   gdbarch_register_type_ftype *register_type;
-  gdbarch_deprecated_register_byte_ftype *deprecated_register_byte;
   gdbarch_unwind_dummy_id_ftype *unwind_dummy_id;
   int deprecated_fp_regnum;
   gdbarch_push_dummy_call_ftype *push_dummy_call;
@@ -182,15 +182,13 @@ struct gdbarch
   gdbarch_convert_register_p_ftype *convert_register_p;
   gdbarch_register_to_value_ftype *register_to_value;
   gdbarch_value_to_register_ftype *value_to_register;
+  gdbarch_value_from_register_ftype *value_from_register;
   gdbarch_pointer_to_address_ftype *pointer_to_address;
   gdbarch_address_to_pointer_ftype *address_to_pointer;
   gdbarch_integer_to_address_ftype *integer_to_address;
-  gdbarch_deprecated_store_struct_return_ftype *deprecated_store_struct_return;
   gdbarch_return_value_ftype *return_value;
   gdbarch_extract_return_value_ftype *extract_return_value;
   gdbarch_store_return_value_ftype *store_return_value;
-  gdbarch_deprecated_extract_return_value_ftype *deprecated_extract_return_value;
-  gdbarch_deprecated_store_return_value_ftype *deprecated_store_return_value;
   gdbarch_deprecated_use_struct_convention_ftype *deprecated_use_struct_convention;
   gdbarch_deprecated_extract_struct_value_address_ftype *deprecated_extract_struct_value_address;
   gdbarch_skip_prologue_ftype *skip_prologue;
@@ -201,7 +199,7 @@ struct gdbarch
   gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint;
   CORE_ADDR decr_pc_after_break;
   CORE_ADDR deprecated_function_start_offset;
-  gdbarch_remote_translate_xfer_address_ftype *remote_translate_xfer_address;
+  gdbarch_remote_register_number_ftype *remote_register_number;
   gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address;
   CORE_ADDR frame_args_skip;
   gdbarch_unwind_pc_ftype *unwind_pc;
@@ -234,6 +232,10 @@ struct gdbarch
   gdbarch_register_reggroup_p_ftype *register_reggroup_p;
   gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument;
   gdbarch_regset_from_core_section_ftype *regset_from_core_section;
+  int vtable_function_descriptors;
+  int vbit_in_delta;
+  gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint;
+  gdbarch_overlay_update_ftype *overlay_update;
 };
 
 
@@ -250,6 +252,7 @@ struct gdbarch startup_gdbarch =
   &bfd_default_arch_struct,  /* bfd_arch_info */
   BFD_ENDIAN_BIG,  /* byte_order */
   GDB_OSABI_UNKNOWN,  /* osabi */
+  0,  /* target_desc */
   /* target specific vector and its dump routine */
   NULL, NULL,
   /*per-architecture data-pointers and swap regions */
@@ -271,7 +274,6 @@ struct gdbarch startup_gdbarch =
   1,  /* char_signed */
   0,  /* read_pc */
   0,  /* write_pc */
-  0,  /* read_sp */
   0,  /* virtual_frame_pointer */
   0,  /* pseudo_register_read */
   0,  /* pseudo_register_write */
@@ -288,7 +290,6 @@ struct gdbarch startup_gdbarch =
   0,  /* dwarf2_reg_to_regnum */
   0,  /* register_name */
   0,  /* register_type */
-  generic_register_byte,  /* deprecated_register_byte */
   0,  /* unwind_dummy_id */
   -1,  /* deprecated_fp_regnum */
   0,  /* push_dummy_call */
@@ -307,15 +308,13 @@ struct gdbarch startup_gdbarch =
   0,  /* convert_register_p */
   0,  /* register_to_value */
   0,  /* value_to_register */
+  0,  /* value_from_register */
   0,  /* pointer_to_address */
   0,  /* address_to_pointer */
   0,  /* integer_to_address */
-  0,  /* deprecated_store_struct_return */
   0,  /* return_value */
   0,  /* extract_return_value */
   0,  /* store_return_value */
-  0,  /* deprecated_extract_return_value */
-  0,  /* deprecated_store_return_value */
   0,  /* deprecated_use_struct_convention */
   0,  /* deprecated_extract_struct_value_address */
   0,  /* skip_prologue */
@@ -326,7 +325,7 @@ struct gdbarch startup_gdbarch =
   0,  /* memory_remove_breakpoint */
   0,  /* decr_pc_after_break */
   0,  /* deprecated_function_start_offset */
-  generic_remote_translate_xfer_address,  /* remote_translate_xfer_address */
+  default_remote_register_number,  /* remote_register_number */
   0,  /* fetch_tls_load_module_address */
   0,  /* frame_args_skip */
   0,  /* unwind_pc */
@@ -359,6 +358,10 @@ struct gdbarch startup_gdbarch =
   default_register_reggroup_p,  /* register_reggroup_p */
   0,  /* fetch_pointer_argument */
   0,  /* regset_from_core_section */
+  0,  /* vtable_function_descriptors */
+  0,  /* vbit_in_delta */
+  0,  /* skip_permanent_breakpoint */
+  0,  /* overlay_update */
   /* startup_gdbarch() */
 };
 
@@ -394,6 +397,7 @@ gdbarch_alloc (const struct gdbarch_info *info,
   current_gdbarch->bfd_arch_info = info->bfd_arch_info;
   current_gdbarch->byte_order = info->byte_order;
   current_gdbarch->osabi = info->osabi;
+  current_gdbarch->target_desc = info->target_desc;
 
   /* Force the explicit initialization of these. */
   current_gdbarch->short_bit = 2*TARGET_CHAR_BIT;
@@ -418,7 +422,6 @@ gdbarch_alloc (const struct gdbarch_info *info,
   current_gdbarch->dwarf_reg_to_regnum = no_op_reg_to_regnum;
   current_gdbarch->sdb_reg_to_regnum = no_op_reg_to_regnum;
   current_gdbarch->dwarf2_reg_to_regnum = no_op_reg_to_regnum;
-  current_gdbarch->deprecated_register_byte = generic_register_byte;
   current_gdbarch->deprecated_fp_regnum = -1;
   current_gdbarch->call_dummy_location = AT_ENTRY_POINT;
   current_gdbarch->print_registers_info = default_print_registers_info;
@@ -426,15 +429,14 @@ gdbarch_alloc (const struct gdbarch_info *info,
   current_gdbarch->cannot_fetch_register = cannot_register_not;
   current_gdbarch->cannot_store_register = cannot_register_not;
   current_gdbarch->convert_register_p = generic_convert_register_p;
+  current_gdbarch->value_from_register = default_value_from_register;
   current_gdbarch->pointer_to_address = unsigned_pointer_to_address;
   current_gdbarch->address_to_pointer = unsigned_address_to_pointer;
   current_gdbarch->return_value = legacy_return_value;
-  current_gdbarch->extract_return_value = legacy_extract_return_value;
-  current_gdbarch->store_return_value = legacy_store_return_value;
   current_gdbarch->deprecated_use_struct_convention = generic_use_struct_convention;
   current_gdbarch->memory_insert_breakpoint = default_memory_insert_breakpoint;
   current_gdbarch->memory_remove_breakpoint = default_memory_remove_breakpoint;
-  current_gdbarch->remote_translate_xfer_address = generic_remote_translate_xfer_address;
+  current_gdbarch->remote_register_number = default_remote_register_number;
   current_gdbarch->stabs_argument_has_addr = default_stabs_argument_has_addr;
   current_gdbarch->convert_from_func_ptr_addr = convert_from_func_ptr_addr_identity;
   current_gdbarch->addr_bits_remove = core_addr_identity;
@@ -512,13 +514,13 @@ verify_gdbarch (struct gdbarch *current_gdbarch)
   /* Skip verify of long_long_bit, invalid_p == 0 */
   /* Skip verify of float_bit, invalid_p == 0 */
   if (current_gdbarch->float_format == 0)
-    current_gdbarch->float_format = default_float_format (current_gdbarch);
+    current_gdbarch->float_format = floatformats_ieee_single;
   /* Skip verify of double_bit, invalid_p == 0 */
   if (current_gdbarch->double_format == 0)
-    current_gdbarch->double_format = default_double_format (current_gdbarch);
+    current_gdbarch->double_format = floatformats_ieee_double;
   /* Skip verify of long_double_bit, invalid_p == 0 */
   if (current_gdbarch->long_double_format == 0)
-    current_gdbarch->long_double_format = default_double_format (current_gdbarch);
+    current_gdbarch->long_double_format = floatformats_ieee_double;
   /* Skip verify of ptr_bit, invalid_p == 0 */
   if (current_gdbarch->addr_bit == 0)
     current_gdbarch->addr_bit = TARGET_PTR_BIT;
@@ -527,7 +529,6 @@ verify_gdbarch (struct gdbarch *current_gdbarch)
     current_gdbarch->char_signed = 1;
   /* Skip verify of read_pc, has predicate */
   /* Skip verify of write_pc, invalid_p == 0 */
-  /* Skip verify of read_sp, has predicate */
   /* Skip verify of virtual_frame_pointer, invalid_p == 0 */
   /* Skip verify of pseudo_register_read, has predicate */
   /* Skip verify of pseudo_register_write, has predicate */
@@ -544,7 +545,6 @@ verify_gdbarch (struct gdbarch *current_gdbarch)
   /* Skip verify of sdb_reg_to_regnum, invalid_p == 0 */
   /* Skip verify of dwarf2_reg_to_regnum, invalid_p == 0 */
   /* Skip verify of register_type, has predicate */
-  /* Skip verify of deprecated_register_byte, has predicate */
   /* Skip verify of unwind_dummy_id, has predicate */
   /* Skip verify of deprecated_fp_regnum, invalid_p == 0 */
   /* Skip verify of push_dummy_call, has predicate */
@@ -559,13 +559,11 @@ verify_gdbarch (struct gdbarch *current_gdbarch)
   /* Skip verify of cannot_store_register, invalid_p == 0 */
   /* Skip verify of get_longjmp_target, has predicate */
   /* Skip verify of convert_register_p, invalid_p == 0 */
+  /* Skip verify of value_from_register, invalid_p == 0 */
   /* Skip verify of pointer_to_address, invalid_p == 0 */
   /* Skip verify of address_to_pointer, invalid_p == 0 */
   /* Skip verify of integer_to_address, has predicate */
-  /* Skip verify of deprecated_store_struct_return, has predicate */
   /* Skip verify of return_value, has predicate */
-  /* Skip verify of extract_return_value, invalid_p == 0 */
-  /* Skip verify of store_return_value, invalid_p == 0 */
   /* Skip verify of deprecated_use_struct_convention, invalid_p == 0 */
   /* Skip verify of deprecated_extract_struct_value_address, has predicate */
   if (current_gdbarch->skip_prologue == 0)
@@ -579,7 +577,7 @@ verify_gdbarch (struct gdbarch *current_gdbarch)
   /* Skip verify of memory_remove_breakpoint, invalid_p == 0 */
   /* Skip verify of decr_pc_after_break, invalid_p == 0 */
   /* Skip verify of deprecated_function_start_offset, invalid_p == 0 */
-  /* Skip verify of remote_translate_xfer_address, 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 frame_args_skip, invalid_p == 0 */
   /* Skip verify of unwind_pc, has predicate */
@@ -612,6 +610,10 @@ verify_gdbarch (struct gdbarch *current_gdbarch)
   /* Skip verify of register_reggroup_p, invalid_p == 0 */
   /* Skip verify of fetch_pointer_argument, has predicate */
   /* Skip verify of regset_from_core_section, has predicate */
+  /* Skip verify of vtable_function_descriptors, invalid_p == 0 */
+  /* Skip verify of vbit_in_delta, invalid_p == 0 */
+  /* Skip verify of skip_permanent_breakpoint, has predicate */
+  /* Skip verify of overlay_update, has predicate */
   buf = ui_file_xstrdup (log, &dummy);
   make_cleanup (xfree, buf);
   if (strlen (buf) > 0)
@@ -701,12 +703,6 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: address_class_type_flags_to_name = <0x%lx>\n",
                       (long) current_gdbarch->address_class_type_flags_to_name);
-#ifdef ADDRESS_TO_POINTER
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: %s # %s\n",
-                      "ADDRESS_TO_POINTER(type, buf, addr)",
-                      XSTRING (ADDRESS_TO_POINTER (type, buf, addr)));
-#endif
   fprintf_unfiltered (file,
                       "gdbarch_dump: address_to_pointer = <0x%lx>\n",
                       (long) current_gdbarch->address_to_pointer);
@@ -749,28 +745,12 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: breakpoint_from_pc = <0x%lx>\n",
                       (long) current_gdbarch->breakpoint_from_pc);
-#ifdef TARGET_BYTE_ORDER
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: TARGET_BYTE_ORDER # %s\n",
-                      XSTRING (TARGET_BYTE_ORDER));
-#endif
   fprintf_unfiltered (file,
                       "gdbarch_dump: byte_order = %s\n",
                       paddr_d (current_gdbarch->byte_order));
-#ifdef CALL_DUMMY_LOCATION
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: CALL_DUMMY_LOCATION # %s\n",
-                      XSTRING (CALL_DUMMY_LOCATION));
-#endif
   fprintf_unfiltered (file,
                       "gdbarch_dump: call_dummy_location = %s\n",
                       paddr_d (current_gdbarch->call_dummy_location));
-#ifdef CANNOT_FETCH_REGISTER
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: %s # %s\n",
-                      "CANNOT_FETCH_REGISTER(regnum)",
-                      XSTRING (CANNOT_FETCH_REGISTER (regnum)));
-#endif
   fprintf_unfiltered (file,
                       "gdbarch_dump: cannot_fetch_register = <0x%lx>\n",
                       (long) current_gdbarch->cannot_fetch_register);
@@ -782,29 +762,12 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: cannot_step_breakpoint = %s\n",
                       paddr_d (current_gdbarch->cannot_step_breakpoint));
-#ifdef CANNOT_STORE_REGISTER
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: %s # %s\n",
-                      "CANNOT_STORE_REGISTER(regnum)",
-                      XSTRING (CANNOT_STORE_REGISTER (regnum)));
-#endif
   fprintf_unfiltered (file,
                       "gdbarch_dump: cannot_store_register = <0x%lx>\n",
                       (long) current_gdbarch->cannot_store_register);
-#ifdef TARGET_CHAR_SIGNED
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: TARGET_CHAR_SIGNED # %s\n",
-                      XSTRING (TARGET_CHAR_SIGNED));
-#endif
   fprintf_unfiltered (file,
                       "gdbarch_dump: char_signed = %s\n",
                       paddr_d (current_gdbarch->char_signed));
-#ifdef COFF_MAKE_MSYMBOL_SPECIAL
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: %s # %s\n",
-                      "COFF_MAKE_MSYMBOL_SPECIAL(val, msym)",
-                      XSTRING (COFF_MAKE_MSYMBOL_SPECIAL (val, msym)));
-#endif
   fprintf_unfiltered (file,
                       "gdbarch_dump: coff_make_msymbol_special = <0x%lx>\n",
                       (long) current_gdbarch->coff_make_msymbol_special);
@@ -831,15 +794,6 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: decr_pc_after_break = 0x%s\n",
                       paddr_nz (current_gdbarch->decr_pc_after_break));
-#ifdef DEPRECATED_EXTRACT_RETURN_VALUE
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: %s # %s\n",
-                      "DEPRECATED_EXTRACT_RETURN_VALUE(type, regbuf, valbuf)",
-                      XSTRING (DEPRECATED_EXTRACT_RETURN_VALUE (type, regbuf, valbuf)));
-#endif
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: deprecated_extract_return_value = <0x%lx>\n",
-                      (long) current_gdbarch->deprecated_extract_return_value);
 #ifdef DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P
   fprintf_unfiltered (file,
                       "gdbarch_dump: %s # %s\n",
@@ -892,24 +846,6 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: deprecated_reg_struct_has_addr = <0x%lx>\n",
                       (long) current_gdbarch->deprecated_reg_struct_has_addr);
-#ifdef DEPRECATED_REGISTER_BYTE_P
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: %s # %s\n",
-                      "DEPRECATED_REGISTER_BYTE_P()",
-                      XSTRING (DEPRECATED_REGISTER_BYTE_P ()));
-#endif
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: gdbarch_deprecated_register_byte_p() = %d\n",
-                      gdbarch_deprecated_register_byte_p (current_gdbarch));
-#ifdef DEPRECATED_REGISTER_BYTE
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: %s # %s\n",
-                      "DEPRECATED_REGISTER_BYTE(reg_nr)",
-                      XSTRING (DEPRECATED_REGISTER_BYTE (reg_nr)));
-#endif
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: deprecated_register_byte = <0x%lx>\n",
-                      (long) current_gdbarch->deprecated_register_byte);
 #ifdef DEPRECATED_REGISTER_SIZE
   fprintf_unfiltered (file,
                       "gdbarch_dump: DEPRECATED_REGISTER_SIZE # %s\n",
@@ -936,33 +872,6 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: deprecated_stack_align = <0x%lx>\n",
                       (long) current_gdbarch->deprecated_stack_align);
-#ifdef DEPRECATED_STORE_RETURN_VALUE
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: %s # %s\n",
-                      "DEPRECATED_STORE_RETURN_VALUE(type, valbuf)",
-                      XSTRING (DEPRECATED_STORE_RETURN_VALUE (type, valbuf)));
-#endif
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: deprecated_store_return_value = <0x%lx>\n",
-                      (long) current_gdbarch->deprecated_store_return_value);
-#ifdef DEPRECATED_STORE_STRUCT_RETURN_P
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: %s # %s\n",
-                      "DEPRECATED_STORE_STRUCT_RETURN_P()",
-                      XSTRING (DEPRECATED_STORE_STRUCT_RETURN_P ()));
-#endif
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: gdbarch_deprecated_store_struct_return_p() = %d\n",
-                      gdbarch_deprecated_store_struct_return_p (current_gdbarch));
-#ifdef DEPRECATED_STORE_STRUCT_RETURN
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: %s # %s\n",
-                      "DEPRECATED_STORE_STRUCT_RETURN(addr, sp)",
-                      XSTRING (DEPRECATED_STORE_STRUCT_RETURN (addr, sp)));
-#endif
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: deprecated_store_struct_return = <0x%lx>\n",
-                      (long) current_gdbarch->deprecated_store_struct_return);
 #ifdef DEPRECATED_USE_STRUCT_CONVENTION
   fprintf_unfiltered (file,
                       "gdbarch_dump: %s # %s\n",
@@ -1015,12 +924,6 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: ecoff_reg_to_regnum = <0x%lx>\n",
                       (long) current_gdbarch->ecoff_reg_to_regnum);
-#ifdef ELF_MAKE_MSYMBOL_SPECIAL
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: %s # %s\n",
-                      "ELF_MAKE_MSYMBOL_SPECIAL(sym, msym)",
-                      XSTRING (ELF_MAKE_MSYMBOL_SPECIAL (sym, msym)));
-#endif
   fprintf_unfiltered (file,
                       "gdbarch_dump: elf_make_msymbol_special = <0x%lx>\n",
                       (long) current_gdbarch->elf_make_msymbol_special);
@@ -1125,29 +1028,12 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: frame_num_args = <0x%lx>\n",
                       (long) current_gdbarch->frame_num_args);
-#ifdef FRAME_RED_ZONE_SIZE
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: FRAME_RED_ZONE_SIZE # %s\n",
-                      XSTRING (FRAME_RED_ZONE_SIZE));
-#endif
   fprintf_unfiltered (file,
                       "gdbarch_dump: frame_red_zone_size = %s\n",
                       paddr_d (current_gdbarch->frame_red_zone_size));
-#ifdef GET_LONGJMP_TARGET_P
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: %s # %s\n",
-                      "GET_LONGJMP_TARGET_P()",
-                      XSTRING (GET_LONGJMP_TARGET_P ()));
-#endif
   fprintf_unfiltered (file,
                       "gdbarch_dump: gdbarch_get_longjmp_target_p() = %d\n",
                       gdbarch_get_longjmp_target_p (current_gdbarch));
-#ifdef GET_LONGJMP_TARGET
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: %s # %s\n",
-                      "GET_LONGJMP_TARGET(pc)",
-                      XSTRING (GET_LONGJMP_TARGET (pc)));
-#endif
   fprintf_unfiltered (file,
                       "gdbarch_dump: get_longjmp_target = <0x%lx>\n",
                       (long) current_gdbarch->get_longjmp_target);
@@ -1171,12 +1057,6 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: in_solib_return_trampoline = <0x%lx>\n",
                       (long) current_gdbarch->in_solib_return_trampoline);
-#ifdef INNER_THAN
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: %s # %s\n",
-                      "INNER_THAN(lhs, rhs)",
-                      XSTRING (INNER_THAN (lhs, rhs)));
-#endif
   fprintf_unfiltered (file,
                       "gdbarch_dump: inner_than = <0x%lx>\n",
                       (long) current_gdbarch->inner_than);
@@ -1252,30 +1132,21 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: name_of_malloc = %s\n",
                       NAME_OF_MALLOC);
-#ifdef NUM_PSEUDO_REGS
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: NUM_PSEUDO_REGS # %s\n",
-                      XSTRING (NUM_PSEUDO_REGS));
-#endif
   fprintf_unfiltered (file,
                       "gdbarch_dump: num_pseudo_regs = %s\n",
                       paddr_d (current_gdbarch->num_pseudo_regs));
-#ifdef NUM_REGS
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: NUM_REGS # %s\n",
-                      XSTRING (NUM_REGS));
-#endif
   fprintf_unfiltered (file,
                       "gdbarch_dump: num_regs = %s\n",
                       paddr_d (current_gdbarch->num_regs));
-#ifdef TARGET_OSABI
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: TARGET_OSABI # %s\n",
-                      XSTRING (TARGET_OSABI));
-#endif
   fprintf_unfiltered (file,
                       "gdbarch_dump: osabi = %s\n",
                       paddr_d (current_gdbarch->osabi));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: gdbarch_overlay_update_p() = %d\n",
+                      gdbarch_overlay_update_p (current_gdbarch));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: overlay_update = <0x%lx>\n",
+                      (long) current_gdbarch->overlay_update);
 #ifdef PC_REGNUM
   fprintf_unfiltered (file,
                       "gdbarch_dump: PC_REGNUM # %s\n",
@@ -1284,12 +1155,6 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: pc_regnum = %s\n",
                       paddr_d (current_gdbarch->pc_regnum));
-#ifdef POINTER_TO_ADDRESS
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: %s # %s\n",
-                      "POINTER_TO_ADDRESS(type, buf)",
-                      XSTRING (POINTER_TO_ADDRESS (type, buf)));
-#endif
   fprintf_unfiltered (file,
                       "gdbarch_dump: pointer_to_address = <0x%lx>\n",
                       (long) current_gdbarch->pointer_to_address);
@@ -1375,24 +1240,6 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: read_pc = <0x%lx>\n",
                       (long) current_gdbarch->read_pc);
-#ifdef TARGET_READ_SP_P
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: %s # %s\n",
-                      "TARGET_READ_SP_P()",
-                      XSTRING (TARGET_READ_SP_P ()));
-#endif
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: gdbarch_read_sp_p() = %d\n",
-                      gdbarch_read_sp_p (current_gdbarch));
-#ifdef TARGET_READ_SP
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: %s # %s\n",
-                      "TARGET_READ_SP()",
-                      XSTRING (TARGET_READ_SP ()));
-#endif
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: read_sp = <0x%lx>\n",
-                      (long) current_gdbarch->read_sp);
 #ifdef REGISTER_BYTES_OK_P
   fprintf_unfiltered (file,
                       "gdbarch_dump: %s # %s\n",
@@ -1454,8 +1301,8 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
                       "gdbarch_dump: regset_from_core_section = <0x%lx>\n",
                       (long) current_gdbarch->regset_from_core_section);
   fprintf_unfiltered (file,
-                      "gdbarch_dump: remote_translate_xfer_address = <0x%lx>\n",
-                      (long) current_gdbarch->remote_translate_xfer_address);
+                      "gdbarch_dump: remote_register_number = <0x%lx>\n",
+                      (long) current_gdbarch->remote_register_number);
   fprintf_unfiltered (file,
                       "gdbarch_dump: gdbarch_return_value_p() = %d\n",
                       gdbarch_return_value_p (current_gdbarch));
@@ -1485,6 +1332,12 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: single_step_through_delay = <0x%lx>\n",
                       (long) current_gdbarch->single_step_through_delay);
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: gdbarch_skip_permanent_breakpoint_p() = %d\n",
+                      gdbarch_skip_permanent_breakpoint_p (current_gdbarch));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: skip_permanent_breakpoint = <0x%lx>\n",
+                      (long) current_gdbarch->skip_permanent_breakpoint);
 #ifdef SKIP_PROLOGUE
   fprintf_unfiltered (file,
                       "gdbarch_dump: %s # %s\n",
@@ -1527,8 +1380,8 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
 #ifdef SOFTWARE_SINGLE_STEP
   fprintf_unfiltered (file,
                       "gdbarch_dump: %s # %s\n",
-                      "SOFTWARE_SINGLE_STEP(sig, insert_breakpoints_p)",
-                      XSTRING (SOFTWARE_SINGLE_STEP (sig, insert_breakpoints_p)));
+                      "SOFTWARE_SINGLE_STEP(regcache)",
+                      XSTRING (SOFTWARE_SINGLE_STEP (regcache)));
 #endif
   fprintf_unfiltered (file,
                       "gdbarch_dump: software_single_step = <0x%lx>\n",
@@ -1563,6 +1416,9 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
                       "gdbarch_dump: store_return_value = <0x%lx>\n",
                       (long) current_gdbarch->store_return_value);
   fprintf_unfiltered (file,
+                      "gdbarch_dump: target_desc = %s\n",
+                      paddr_d ((long) current_gdbarch->target_desc));
+  fprintf_unfiltered (file,
                       "gdbarch_dump: gdbarch_unwind_dummy_id_p() = %d\n",
                       gdbarch_unwind_dummy_id_p (current_gdbarch));
   fprintf_unfiltered (file,
@@ -1580,6 +1436,9 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: unwind_sp = <0x%lx>\n",
                       (long) current_gdbarch->unwind_sp);
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: value_from_register = <0x%lx>\n",
+                      (long) current_gdbarch->value_from_register);
 #ifdef VALUE_TO_REGISTER
   fprintf_unfiltered (file,
                       "gdbarch_dump: %s # %s\n",
@@ -1589,6 +1448,9 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: value_to_register = <0x%lx>\n",
                       (long) current_gdbarch->value_to_register);
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: vbit_in_delta = %s\n",
+                      paddr_d (current_gdbarch->vbit_in_delta));
 #ifdef TARGET_VIRTUAL_FRAME_POINTER
   fprintf_unfiltered (file,
                       "gdbarch_dump: %s # %s\n",
@@ -1598,6 +1460,9 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
   fprintf_unfiltered (file,
                       "gdbarch_dump: virtual_frame_pointer = <0x%lx>\n",
                       (long) current_gdbarch->virtual_frame_pointer);
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: vtable_function_descriptors = %s\n",
+                      paddr_d (current_gdbarch->vtable_function_descriptors));
 #ifdef TARGET_WRITE_PC
   fprintf_unfiltered (file,
                       "gdbarch_dump: %s # %s\n",
@@ -1647,6 +1512,15 @@ gdbarch_osabi (struct gdbarch *gdbarch)
   return gdbarch->osabi;
 }
 
+const struct target_desc *
+gdbarch_target_desc (struct gdbarch *gdbarch)
+{
+  gdb_assert (gdbarch != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_target_desc called\n");
+  return gdbarch->target_desc;
+}
+
 int
 gdbarch_short_bit (struct gdbarch *gdbarch)
 {
@@ -1732,7 +1606,7 @@ set_gdbarch_float_bit (struct gdbarch *gdbarch,
   gdbarch->float_bit = float_bit;
 }
 
-const struct floatformat *
+const struct floatformat **
 gdbarch_float_format (struct gdbarch *gdbarch)
 {
   gdb_assert (gdbarch != NULL);
@@ -1743,7 +1617,7 @@ gdbarch_float_format (struct gdbarch *gdbarch)
 
 void
 set_gdbarch_float_format (struct gdbarch *gdbarch,
-                          const struct floatformat * float_format)
+                          const struct floatformat ** float_format)
 {
   gdbarch->float_format = float_format;
 }
@@ -1765,7 +1639,7 @@ set_gdbarch_double_bit (struct gdbarch *gdbarch,
   gdbarch->double_bit = double_bit;
 }
 
-const struct floatformat *
+const struct floatformat **
 gdbarch_double_format (struct gdbarch *gdbarch)
 {
   gdb_assert (gdbarch != NULL);
@@ -1776,7 +1650,7 @@ gdbarch_double_format (struct gdbarch *gdbarch)
 
 void
 set_gdbarch_double_format (struct gdbarch *gdbarch,
-                           const struct floatformat * double_format)
+                           const struct floatformat ** double_format)
 {
   gdbarch->double_format = double_format;
 }
@@ -1798,7 +1672,7 @@ set_gdbarch_long_double_bit (struct gdbarch *gdbarch,
   gdbarch->long_double_bit = long_double_bit;
 }
 
-const struct floatformat *
+const struct floatformat **
 gdbarch_long_double_format (struct gdbarch *gdbarch)
 {
   gdb_assert (gdbarch != NULL);
@@ -1809,7 +1683,7 @@ gdbarch_long_double_format (struct gdbarch *gdbarch)
 
 void
 set_gdbarch_long_double_format (struct gdbarch *gdbarch,
-                                const struct floatformat * long_double_format)
+                                const struct floatformat ** long_double_format)
 {
   gdbarch->long_double_format = long_double_format;
 }
@@ -1925,30 +1799,6 @@ set_gdbarch_write_pc (struct gdbarch *gdbarch,
   gdbarch->write_pc = write_pc;
 }
 
-int
-gdbarch_read_sp_p (struct gdbarch *gdbarch)
-{
-  gdb_assert (gdbarch != NULL);
-  return gdbarch->read_sp != NULL;
-}
-
-CORE_ADDR
-gdbarch_read_sp (struct gdbarch *gdbarch)
-{
-  gdb_assert (gdbarch != NULL);
-  gdb_assert (gdbarch->read_sp != NULL);
-  if (gdbarch_debug >= 2)
-    fprintf_unfiltered (gdb_stdlog, "gdbarch_read_sp called\n");
-  return gdbarch->read_sp ();
-}
-
-void
-set_gdbarch_read_sp (struct gdbarch *gdbarch,
-                     gdbarch_read_sp_ftype read_sp)
-{
-  gdbarch->read_sp = read_sp;
-}
-
 void
 gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset)
 {
@@ -2244,31 +2094,6 @@ set_gdbarch_register_type (struct gdbarch *gdbarch,
 }
 
 int
-gdbarch_deprecated_register_byte_p (struct gdbarch *gdbarch)
-{
-  gdb_assert (gdbarch != NULL);
-  return gdbarch->deprecated_register_byte != generic_register_byte;
-}
-
-int
-gdbarch_deprecated_register_byte (struct gdbarch *gdbarch, int reg_nr)
-{
-  gdb_assert (gdbarch != NULL);
-  gdb_assert (gdbarch->deprecated_register_byte != NULL);
-  /* Do not check predicate: gdbarch->deprecated_register_byte != generic_register_byte, allow call.  */
-  if (gdbarch_debug >= 2)
-    fprintf_unfiltered (gdb_stdlog, "gdbarch_deprecated_register_byte called\n");
-  return gdbarch->deprecated_register_byte (reg_nr);
-}
-
-void
-set_gdbarch_deprecated_register_byte (struct gdbarch *gdbarch,
-                                      gdbarch_deprecated_register_byte_ftype deprecated_register_byte)
-{
-  gdbarch->deprecated_register_byte = deprecated_register_byte;
-}
-
-int
 gdbarch_unwind_dummy_id_p (struct gdbarch *gdbarch)
 {
   gdb_assert (gdbarch != NULL);
@@ -2621,6 +2446,23 @@ set_gdbarch_value_to_register (struct gdbarch *gdbarch,
   gdbarch->value_to_register = value_to_register;
 }
 
+struct value *
+gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_info *frame)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->value_from_register != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_value_from_register called\n");
+  return gdbarch->value_from_register (type, regnum, frame);
+}
+
+void
+set_gdbarch_value_from_register (struct gdbarch *gdbarch,
+                                 gdbarch_value_from_register_ftype value_from_register)
+{
+  gdbarch->value_from_register = value_from_register;
+}
+
 CORE_ADDR
 gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf)
 {
@@ -2680,30 +2522,6 @@ set_gdbarch_integer_to_address (struct gdbarch *gdbarch,
 }
 
 int
-gdbarch_deprecated_store_struct_return_p (struct gdbarch *gdbarch)
-{
-  gdb_assert (gdbarch != NULL);
-  return gdbarch->deprecated_store_struct_return != NULL;
-}
-
-void
-gdbarch_deprecated_store_struct_return (struct gdbarch *gdbarch, CORE_ADDR addr, CORE_ADDR sp)
-{
-  gdb_assert (gdbarch != NULL);
-  gdb_assert (gdbarch->deprecated_store_struct_return != NULL);
-  if (gdbarch_debug >= 2)
-    fprintf_unfiltered (gdb_stdlog, "gdbarch_deprecated_store_struct_return called\n");
-  gdbarch->deprecated_store_struct_return (addr, sp);
-}
-
-void
-set_gdbarch_deprecated_store_struct_return (struct gdbarch *gdbarch,
-                                            gdbarch_deprecated_store_struct_return_ftype deprecated_store_struct_return)
-{
-  gdbarch->deprecated_store_struct_return = deprecated_store_struct_return;
-}
-
-int
 gdbarch_return_value_p (struct gdbarch *gdbarch)
 {
   gdb_assert (gdbarch != NULL);
@@ -2762,40 +2580,6 @@ set_gdbarch_store_return_value (struct gdbarch *gdbarch,
   gdbarch->store_return_value = store_return_value;
 }
 
-void
-gdbarch_deprecated_extract_return_value (struct gdbarch *gdbarch, struct type *type, gdb_byte *regbuf, gdb_byte *valbuf)
-{
-  gdb_assert (gdbarch != NULL);
-  gdb_assert (gdbarch->deprecated_extract_return_value != NULL);
-  if (gdbarch_debug >= 2)
-    fprintf_unfiltered (gdb_stdlog, "gdbarch_deprecated_extract_return_value called\n");
-  gdbarch->deprecated_extract_return_value (type, regbuf, valbuf);
-}
-
-void
-set_gdbarch_deprecated_extract_return_value (struct gdbarch *gdbarch,
-                                             gdbarch_deprecated_extract_return_value_ftype deprecated_extract_return_value)
-{
-  gdbarch->deprecated_extract_return_value = deprecated_extract_return_value;
-}
-
-void
-gdbarch_deprecated_store_return_value (struct gdbarch *gdbarch, struct type *type, gdb_byte *valbuf)
-{
-  gdb_assert (gdbarch != NULL);
-  gdb_assert (gdbarch->deprecated_store_return_value != NULL);
-  if (gdbarch_debug >= 2)
-    fprintf_unfiltered (gdb_stdlog, "gdbarch_deprecated_store_return_value called\n");
-  gdbarch->deprecated_store_return_value (type, valbuf);
-}
-
-void
-set_gdbarch_deprecated_store_return_value (struct gdbarch *gdbarch,
-                                           gdbarch_deprecated_store_return_value_ftype deprecated_store_return_value)
-{
-  gdbarch->deprecated_store_return_value = deprecated_store_return_value;
-}
-
 int
 gdbarch_deprecated_use_struct_convention (struct gdbarch *gdbarch, int gcc_p, struct type *value_type)
 {
@@ -2980,21 +2764,21 @@ set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch,
   gdbarch->deprecated_function_start_offset = deprecated_function_start_offset;
 }
 
-void
-gdbarch_remote_translate_xfer_address (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR gdb_addr, int gdb_len, CORE_ADDR *rem_addr, int *rem_len)
+int
+gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno)
 {
   gdb_assert (gdbarch != NULL);
-  gdb_assert (gdbarch->remote_translate_xfer_address != NULL);
+  gdb_assert (gdbarch->remote_register_number != NULL);
   if (gdbarch_debug >= 2)
-    fprintf_unfiltered (gdb_stdlog, "gdbarch_remote_translate_xfer_address called\n");
-  gdbarch->remote_translate_xfer_address (gdbarch, regcache, gdb_addr, gdb_len, rem_addr, rem_len);
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_remote_register_number called\n");
+  return gdbarch->remote_register_number (gdbarch, regno);
 }
 
 void
-set_gdbarch_remote_translate_xfer_address (struct gdbarch *gdbarch,
-                                           gdbarch_remote_translate_xfer_address_ftype remote_translate_xfer_address)
+set_gdbarch_remote_register_number (struct gdbarch *gdbarch,
+                                    gdbarch_remote_register_number_ftype remote_register_number)
 {
-  gdbarch->remote_translate_xfer_address = remote_translate_xfer_address;
+  gdbarch->remote_register_number = remote_register_number;
 }
 
 int
@@ -3273,14 +3057,14 @@ gdbarch_software_single_step_p (struct gdbarch *gdbarch)
   return gdbarch->software_single_step != NULL;
 }
 
-void
-gdbarch_software_single_step (struct gdbarch *gdbarch, enum target_signal sig, int insert_breakpoints_p)
+int
+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");
-  gdbarch->software_single_step (sig, insert_breakpoints_p);
+  return gdbarch->software_single_step (regcache);
 }
 
 void
@@ -3638,6 +3422,88 @@ set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch,
   gdbarch->regset_from_core_section = regset_from_core_section;
 }
 
+int
+gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch)
+{
+  gdb_assert (gdbarch != NULL);
+  /* Skip verify of vtable_function_descriptors, invalid_p == 0 */
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_vtable_function_descriptors called\n");
+  return gdbarch->vtable_function_descriptors;
+}
+
+void
+set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch,
+                                         int vtable_function_descriptors)
+{
+  gdbarch->vtable_function_descriptors = vtable_function_descriptors;
+}
+
+int
+gdbarch_vbit_in_delta (struct gdbarch *gdbarch)
+{
+  gdb_assert (gdbarch != NULL);
+  /* Skip verify of vbit_in_delta, invalid_p == 0 */
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_vbit_in_delta called\n");
+  return gdbarch->vbit_in_delta;
+}
+
+void
+set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch,
+                           int vbit_in_delta)
+{
+  gdbarch->vbit_in_delta = vbit_in_delta;
+}
+
+int
+gdbarch_skip_permanent_breakpoint_p (struct gdbarch *gdbarch)
+{
+  gdb_assert (gdbarch != NULL);
+  return gdbarch->skip_permanent_breakpoint != NULL;
+}
+
+void
+gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->skip_permanent_breakpoint != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_skip_permanent_breakpoint called\n");
+  gdbarch->skip_permanent_breakpoint (regcache);
+}
+
+void
+set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch,
+                                       gdbarch_skip_permanent_breakpoint_ftype skip_permanent_breakpoint)
+{
+  gdbarch->skip_permanent_breakpoint = skip_permanent_breakpoint;
+}
+
+int
+gdbarch_overlay_update_p (struct gdbarch *gdbarch)
+{
+  gdb_assert (gdbarch != NULL);
+  return gdbarch->overlay_update != NULL;
+}
+
+void
+gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->overlay_update != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_overlay_update called\n");
+  gdbarch->overlay_update (osect);
+}
+
+void
+set_gdbarch_overlay_update (struct gdbarch *gdbarch,
+                            gdbarch_overlay_update_ftype overlay_update)
+{
+  gdbarch->overlay_update = overlay_update;
+}
+
 
 /* Keep a registry of per-architecture data-pointers required by GDB
    modules. */
@@ -3961,8 +3827,7 @@ register_gdbarch_init (enum bfd_architecture bfd_architecture,
 }
 
 
-/* Look for an architecture using gdbarch_info.  Base search on only
-   BFD_ARCH_INFO and BYTE_ORDER. */
+/* Look for an architecture using gdbarch_info.  */
 
 struct gdbarch_list *
 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
@@ -3976,6 +3841,8 @@ gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
        continue;
       if (info->osabi != arches->gdbarch->osabi)
        continue;
+      if (info->target_desc != arches->gdbarch->target_desc)
+       continue;
       return arches;
     }
   return NULL;
@@ -3987,7 +3854,7 @@ gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
    that there is no current architecture.  */
 
 static struct gdbarch *
-find_arch_by_info (struct gdbarch *old_gdbarch, struct gdbarch_info info)
+find_arch_by_info (struct gdbarch_info info)
 {
   struct gdbarch *new_gdbarch;
   struct gdbarch_registration *rego;
@@ -3997,9 +3864,9 @@ find_arch_by_info (struct gdbarch *old_gdbarch, struct gdbarch_info info)
   gdb_assert (current_gdbarch == NULL);
 
   /* Fill in missing parts of the INFO struct using a number of
-     sources: "set ..."; INFOabfd supplied; and the existing
-     architecture.  */
-  gdbarch_info_fill (old_gdbarch, &info);
+     sources: "set ..."; INFOabfd supplied; and the global
+     defaults.  */
+  gdbarch_info_fill (&info);
 
   /* Must have found some sort of architecture. */
   gdb_assert (info.bfd_arch_info != NULL);
@@ -4130,7 +3997,7 @@ gdbarch_find_by_info (struct gdbarch_info info)
   struct gdbarch *old_gdbarch = current_gdbarch_swap_out_hack ();
 
   /* Find the specified architecture.  */
-  struct gdbarch *new_gdbarch = find_arch_by_info (old_gdbarch, info);
+  struct gdbarch *new_gdbarch = find_arch_by_info (info);
 
   /* Restore the existing architecture.  */
   gdb_assert (current_gdbarch == NULL);
@@ -4151,7 +4018,7 @@ deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
   current_gdbarch_swap_out_hack ();
   current_gdbarch_swap_in_hack (new_gdbarch);
   architecture_changed_event ();
-  flush_cached_frames ();
+  reinit_frame_cache ();
 }
 
 extern void _initialize_gdbarch (void);