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* Makefile.in (arm-tdep.o, eval.o, target-descriptions.o)

Browse Source 
(xml-tdesc.o): Update.
	* xml-support.c: Add a comment.
	(gdb_xml_enums_boolean): New variable.
	(gdb_xml_parse_attr_enum): Use strcasecmp.
	* xml-support.h (gdb_xml_enums_boolean): Declare.
	* xml-tdesc.c (struct tdesc_parsing_data): Record current_feature,
	next_regnum, and current_union.
	(tdesc_start_feature, tdesc_start_reg, tdesc_start_union)
	(tdesc_end_union, tdesc_start_field, tdesc_start_vector)
	(field_attributes, union_children, reg_attributes, union_attributes)
	(vector_attributes, feature_attributes, feature_children): New.
	(target_children): Make static.  Add <feature>.
	(tdesc_elements): Make static.
	* target-descriptions.c (struct tdesc_reg, tdesc_reg_p, type_p)
	(struct tdesc_feature, tdesc_feature_p): New types.
	(struct target_desc): Add features member.
	(struct tdesc_arch_data, tdesc_data): New.
	(target_find_description): Clarify error message.  Warn about
	ignored register descriptions.
	(tdesc_has_registers, tdesc_find_feature, tdesc_feature_name)
	(tdesc_named_type, tdesc_data_init, tdesc_data_alloc)
	(tdesc_data_cleanup, tdesc_numbered_register)
	(tdesc_numbered_register_choices, tdesc_find_register)
	(tdesc_register_name, tdesc_register_type)
	(tdesc_remote_register_number, tdesc_register_reggroup_p)
	(set_tdesc_pseudo_register_name, set_tdesc_pseudo_register_type)
	(set_tdesc_pseudo_register_reggroup_p, tdesc_use_registers)
	(tdesc_free_reg, tdesc_create_reg, tdesc_free_feature)
	(tdesc_create_feature, tdesc_record_type): New.
	(free_target_description): Free features.
	(_initialize_target_descriptions): Initialize tdesc_data.
	* arch-utils.c (default_remote_register_number): New.
	* arch-utils.h (default_remote_register_number): New prototype.
	* target-descriptions.h (set_tdesc_pseudo_register_name)
	(set_tdesc_pseudo_register_type, set_tdesc_pseudo_register_reggroup_p)
	(tdesc_use_registers, tdesc_data_alloc, tdesc_data_cleanup)
	(tdesc_numbered_register, tdesc_numbered_register_choices)
	(tdesc_has_registers, tdesc_find_feature, tdesc_feature_name)
	(tdesc_named_type, tdesc_create_feature, tdesc_record_type)
	(tdesc_create_reg): Declare.
	* gdbarch.sh (remote_register_number): New entry.
	* gdbarch.c, gdbarch.h: Regenerate.
	* remote.c (init_remote_state): Use gdbarch_remote_register_number.
	* features/gdb-target.dtd: Add feature, reg, vector, union, and field.

	* arm-tdep.c (arm_register_aliases): New.
	(arm_register_name_strings): Rename to...
	(arm_register_names): ...this.  Make const.  Delete the old version.
	(current_option, arm_register_byte): Delete.
	(set_disassembly_style): Simplify.  Do not adjust arm_register_names.
	(value_of_arm_user_reg): New.
	(arm_gdbarch_init): Verify any described registers.  Call
	tdesc_use_registers.  Don't use arm_register_byte.  Create aliases
	for standard register names.
	(_initialize_arm_tdep): Do not adjust arm_register_names.
	* user-regs.c (struct user_reg): Add baton member.
	(append_user_reg, user_reg_add_builtin, user_regs_init)
	(user_reg_add, value_of_user_reg): Use a baton for user
	register functions.
	* std-regs.c: Update.
	* user-regs.h (user_reg_read_ftype, user_reg_add_builtin)
	(user_reg_add): Add baton argument.
	* NEWS: Mention target description register support.
	* features/arm-core.xml, features/arm-fpa.xml: New.
	* eval.c (evaluate_subexp_standard): Allow ptype $register
	when the program is not running.

	* gdb.texinfo (-target-disconnect): Use @smallexample.
	(Requirements): Add anchor for Expat.  Update description.
	(Target Descriptions): Mention Expat.
	(Target Description Format): Document new elements.  Use
	@smallexample.
	(Predefined Target Types, Standard Target Features): New sections.
	* doc/gdbint.texinfo (Target Descriptions): New section.

	* gdb.xml/single-reg.xml, gdb.xml/tdesc-regs.exp,
	gdb.xml/core-only.xml, gdb.xml/extra-regs.xml: New files.
This commit is contained in:
Daniel Jacobowitz
2007-02-08 21:00:36 +00:00
parent 1183581f7f
commit 123dc83914
30 changed files with 1857 additions and 114 deletions
Download Patch File Download Diff File Expand all files Collapse all files

93
gdb/target-descriptions.h
View File

@@ -24,7 +24,12 @@
#ifndef TARGET_DESCRIPTIONS_H
#define TARGET_DESCRIPTIONS_H 1
struct tdesc_feature;
struct tdesc_arch_data;
struct tdesc_reg;
struct target_desc;
struct target_ops;
struct type;
/* Fetch the current target's description, and switch the current
architecture to one which incorporates that description. */
@@ -42,6 +47,65 @@ void target_clear_description (void);
const struct target_desc *target_current_description (void);
/* Record architecture-specific functions to call for pseudo-register
support. If tdesc_use_registers is called and NUM_PSEUDO_REGS
is greater than zero, then these should be called as well.
They are equivalent to the gdbarch methods with similar names,
except that they will only be called for pseudo registers. */
void set_tdesc_pseudo_register_name
(struct gdbarch *gdbarch, gdbarch_register_name_ftype *pseudo_name);
void set_tdesc_pseudo_register_type
(struct gdbarch *gdbarch, gdbarch_register_type_ftype *pseudo_type);
void set_tdesc_pseudo_register_reggroup_p
(struct gdbarch *gdbarch,
gdbarch_register_reggroup_p_ftype *pseudo_reggroup_p);
/* Update GDBARCH to use the target description for registers. Fixed
register assignments are taken from EARLY_DATA, which is freed.
All registers which have not been assigned fixed numbers are given
numbers above the current value of NUM_REGS. NUM_REGS and various
register-related predicates are updated to refer to the target
description. This function should only be called from the
architecture's gdbarch initialization routine, and only after
successfully validating the required registers. */
void tdesc_use_registers (struct gdbarch *gdbarch,
struct tdesc_arch_data *early_data);
/* Allocate initial data for validation of a target description during
gdbarch initialization. */
struct tdesc_arch_data *tdesc_data_alloc (void);
/* Clean up data allocated by tdesc_data_alloc. This should only
be called to discard the data; tdesc_use_registers takes ownership
of its EARLY_DATA argument. */
void tdesc_data_cleanup (void *data_untyped);
/* Search FEATURE for a register named NAME. Record REGNO and the
register in DATA; when tdesc_use_registers is called, REGNO will be
assigned to the register. 1 is returned if the register was found,
0 if it was not. */
int tdesc_numbered_register (const struct tdesc_feature *feature,
struct tdesc_arch_data *data,
int regno, 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
tdesc_use_registers is called, REGNO will be assigned to the
register. 1 is returned if the register was found, 0 if it was
not. */
int tdesc_numbered_register_choices (const struct tdesc_feature *feature,
struct tdesc_arch_data *data,
int regno, const char *const names[]);
/* Accessors for target descriptions. */
/* Return the BFD architecture associated with this target
@@ -56,14 +120,41 @@ const struct bfd_arch_info *tdesc_architecture
const char *tdesc_property (const struct target_desc *,
const char *key);
/* Return 1 if this target description describes any registers. */
int tdesc_has_registers (const struct target_desc *);
/* Return the feature with the given name, if present, or NULL if
the named feature is not found. */
const struct tdesc_feature *tdesc_find_feature (const struct target_desc *,
const char *name);
/* Return the name of FEATURE. */
const char *tdesc_feature_name (const struct tdesc_feature *feature);
/* Return the type associated with ID in the context of FEATURE, or
NULL if none. */
struct type *tdesc_named_type (const struct tdesc_feature *feature,
const char *id);
/* 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_property (struct target_desc *,
const char *key, const char *value);
struct tdesc_feature *tdesc_create_feature (struct target_desc *tdesc,
const char *name);
void tdesc_record_type (struct tdesc_feature *feature, struct type *type);
void tdesc_create_reg (struct tdesc_feature *feature, const char *name,
int regnum, int save_restore, const char *group,
int bitsize, const char *type);
#endif /* TARGET_DESCRIPTIONS_H */