/* Target description support for GDB.
- Copyright (C) 2006-2017 Free Software Foundation, Inc.
+ Copyright (C) 2006-2020 Free Software Foundation, Inc.
Contributed by CodeSourcery.
#ifndef TARGET_DESCRIPTIONS_H
#define TARGET_DESCRIPTIONS_H 1
-#include "arch/tdesc.h"
+#include "gdbsupport/tdesc.h"
+#include "gdbarch.h"
struct tdesc_arch_data;
struct target_ops;
(struct gdbarch *gdbarch,
gdbarch_register_reggroup_p_ftype *pseudo_reggroup_p);
+/* Pointer to a function that should be called for each unknown register in
+ a target description, used by TDESC_USE_REGISTERS.
+
+ GDBARCH is the architecture the target description is for, FEATURE is
+ the feature the unknown register is in, and REG_NAME is the name of the
+ register from the target description. The POSSIBLE_REGNUM is a proposed
+ (GDB internal) number for this register.
+
+ The callback function can return, (-1) to indicate that the register
+ should not be assigned POSSIBLE_REGNUM now (though it might be later),
+ GDB will number the register automatically later on. Return
+ POSSIBLE_REGNUM (or greater) to have this register assigned that number.
+ Returning a value less that POSSIBLE_REGNUM is also acceptable, but take
+ care not to clash with a register number that has already been
+ assigned.
+
+ The callback will always be called on the registers in the order they
+ appear in the target description. This means all unknown registers
+ within a single feature will be called one after another. */
+
+typedef int (*tdesc_unknown_register_ftype)
+ (struct gdbarch *gdbarch, tdesc_feature *feature,
+ const char *reg_name, int possible_regnum);
+
/* Update GDBARCH to use the TARGET_DESC for registers. TARGET_DESC
may be GDBARCH's target description or (if GDBARCH does not have
one which describes registers) another target description
void tdesc_use_registers (struct gdbarch *gdbarch,
const struct target_desc *target_desc,
- struct tdesc_arch_data *early_data);
+ struct tdesc_arch_data *early_data,
+ tdesc_unknown_register_ftype unk_reg_cb = NULL);
/* Allocate initial data for validation of a target description during
gdbarch initialization. */
/* Search FEATURE for a register named NAME, and return its size in
bits. The register must exist. */
-int tdesc_register_size (const struct tdesc_feature *feature,
- const char *name);
+int tdesc_register_bitsize (const struct tdesc_feature *feature,
+ const char *name);
/* Search FEATURE for a register with any of the names from NAMES
(NULL-terminated). Record REGNO and the register in DATA; when
/* Methods for constructing a target description. */
-struct target_desc *allocate_target_description (void);
-struct cleanup *make_cleanup_free_target_description (struct target_desc *);
void set_tdesc_architecture (struct target_desc *,
const struct bfd_arch_info *);
void set_tdesc_osabi (struct target_desc *, enum gdb_osabi osabi);
const char *key, const char *value);
void tdesc_add_compatible (struct target_desc *,
const struct bfd_arch_info *);
-struct tdesc_type *tdesc_create_enum (struct tdesc_feature *feature,
- const char *name,
- int size);
-void tdesc_add_typed_bitfield (struct tdesc_type *type, const char *field_name,
- int start, int end,
- struct tdesc_type *field_type);
-void tdesc_add_enum_value (struct tdesc_type *type, int value,
- const char *name);
#if GDB_SELF_TEST
namespace selftests {
/* Record that XML_FILE should generate a target description that equals
TDESC, to be verified by the "maintenance check xml-descriptions"
- command. */
+ command. This function takes ownership of TDESC. */
void record_xml_tdesc (const char *xml_file,
const struct target_desc *tdesc);