extern const struct regset * gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
extern void set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch, gdbarch_regset_from_core_section_ftype *regset_from_core_section);
+/* When creating core dumps, some systems encode the PID in addition
+ to the LWP id in core file register section names. In those cases, the
+ "XXX" in ".reg/XXX" is encoded as [LWPID << 16 | PID]. This setting
+ is set to true for such architectures; false if "XXX" represents an LWP
+ or thread id with no special encoding. */
+
+extern int gdbarch_core_reg_section_encodes_pid (struct gdbarch *gdbarch);
+extern void set_gdbarch_core_reg_section_encodes_pid (struct gdbarch *gdbarch, int core_reg_section_encodes_pid);
+
/* Supported register notes in a core file. */
extern struct core_regset_section * gdbarch_core_regset_sections (struct gdbarch *gdbarch);
extern LONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len);
extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries);
+/* How the core_stratum layer converts a PTID from a core file to a
+ string. */
+
+extern int gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch);
+
+typedef char * (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
+extern char * gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid);
+extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str);
+
/* If the elements of C++ vtables are in-place function descriptors rather
than normal function pointers (which may point to code or a descriptor),
set this to one. */
extern int gdbarch_target_signal_to_host (struct gdbarch *gdbarch, enum target_signal ts);
extern void set_gdbarch_target_signal_to_host (struct gdbarch *gdbarch, gdbarch_target_signal_to_host_ftype *target_signal_to_host);
+/* Extra signal info inspection.
+
+ Return a type suitable to inspect extra signal information. */
+
+extern int gdbarch_get_siginfo_type_p (struct gdbarch *gdbarch);
+
+typedef struct type * (gdbarch_get_siginfo_type_ftype) (struct gdbarch *gdbarch);
+extern struct type * gdbarch_get_siginfo_type (struct gdbarch *gdbarch);
+extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type);
+
/* Record architecture-specific information from the symbol table. */
extern int gdbarch_record_special_symbol_p (struct gdbarch *gdbarch);