* arch-utils.h (legacy_register_to_value): Declare.

(legacy_value_to_register): Declare.
(legacy_convert_register_p): Declare.
* arch-utils.c (legacy_register_to_value): New function.
(legacy_value_to_register): New function.
(legacy_convert_register_p): New function.

* gdbarch.sh (REGISTER_TO_VALUE): Define.
(VALUE_TO_REGISTER): Define.
(CONVERT_REGISTER_P): Define.
* gdbarch.h, gdbarch.c: Regenerate.

* valops.c (value_assign): Use CONVERT_REGISTER_P and
VALUE_TO_REGISTER.
* findvar.c (value_from_register): Use REGISTER_TO_VALUE and
CONVERT_REGISTER_P.

* gdbint.texinfo (Target Architecture Definition): Document
REGISTER_TO_VALUE and VALUE_TO_REGISTER and CONVERT_REGISTER_P.
(Target Architecture Definition): Revise section `Using Different
Register and Memory Data Representations'.  Add section `Raw and
Virtual Register Representations'.

1 files changed, 51 insertions, 0 deletions

diff --git a/gdb/gdbarch.h b/gdb/gdbarch.h
index 84b8c7d..94f12d2 100644
--- a/gdb/gdbarch.h
+++ b/gdb/gdbarch.h
@@ -1267,6 +1267,57 @@ extern void set_gdbarch_register_convert_to_raw (struct gdbarch *gdbarch, gdbarc
 #endif
 #endif
 
+/* Default (function) for non- multi-arch platforms. */
+#if (!GDB_MULTI_ARCH) && !defined (CONVERT_REGISTER_P)
+#define CONVERT_REGISTER_P(regnum) (legacy_convert_register_p (regnum))
+#endif
+
+typedef int (gdbarch_convert_register_p_ftype) (int regnum);
+extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum);
+extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
+#if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PARTIAL) && defined (CONVERT_REGISTER_P)
+#error "Non multi-arch definition of CONVERT_REGISTER_P"
+#endif
+#if GDB_MULTI_ARCH
+#if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PARTIAL) || !defined (CONVERT_REGISTER_P)
+#define CONVERT_REGISTER_P(regnum) (gdbarch_convert_register_p (current_gdbarch, regnum))
+#endif
+#endif
+
+/* Default (function) for non- multi-arch platforms. */
+#if (!GDB_MULTI_ARCH) && !defined (REGISTER_TO_VALUE)
+#define REGISTER_TO_VALUE(regnum, type, from, to) (legacy_register_to_value (regnum, type, from, to))
+#endif
+
+typedef void (gdbarch_register_to_value_ftype) (int regnum, struct type *type, char *from, char *to);
+extern void gdbarch_register_to_value (struct gdbarch *gdbarch, int regnum, struct type *type, char *from, char *to);
+extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
+#if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PARTIAL) && defined (REGISTER_TO_VALUE)
+#error "Non multi-arch definition of REGISTER_TO_VALUE"
+#endif
+#if GDB_MULTI_ARCH
+#if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PARTIAL) || !defined (REGISTER_TO_VALUE)
+#define REGISTER_TO_VALUE(regnum, type, from, to) (gdbarch_register_to_value (current_gdbarch, regnum, type, from, to))
+#endif
+#endif
+
+/* Default (function) for non- multi-arch platforms. */
+#if (!GDB_MULTI_ARCH) && !defined (VALUE_TO_REGISTER)
+#define VALUE_TO_REGISTER(type, regnum, from, to) (legacy_value_to_register (type, regnum, from, to))
+#endif
+
+typedef void (gdbarch_value_to_register_ftype) (struct type *type, int regnum, char *from, char *to);
+extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct type *type, int regnum, char *from, char *to);
+extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
+#if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PARTIAL) && defined (VALUE_TO_REGISTER)
+#error "Non multi-arch definition of VALUE_TO_REGISTER"
+#endif
+#if GDB_MULTI_ARCH
+#if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PARTIAL) || !defined (VALUE_TO_REGISTER)
+#define VALUE_TO_REGISTER(type, regnum, from, to) (gdbarch_value_to_register (current_gdbarch, type, regnum, from, to))
+#endif
+#endif
+
 /* This function is called when the value of a pseudo-register needs to
    be updated.  Typically it will be defined on a per-architecture
    basis. */