From 123dc839145c04e57435369a9f2551a505ce0b33 Mon Sep 17 00:00:00 2001 From: Daniel Jacobowitz Date: Thu, 8 Feb 2007 21:00:36 +0000 Subject: * Makefile.in (arm-tdep.o, eval.o, target-descriptions.o) (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 . (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. --- gdb/target-descriptions.h | 93 ++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 92 insertions(+), 1 deletion(-) (limited to 'gdb/target-descriptions.h') diff --git a/gdb/target-descriptions.h b/gdb/target-descriptions.h index f45e53b..9c64190 100644 --- a/gdb/target-descriptions.h +++ b/gdb/target-descriptions.h @@ -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 */ -- cgit v1.1