/* Target description support for GDB.
- Copyright (C) 2006-2017 Free Software Foundation, Inc.
+ Copyright (C) 2006-2021 Free Software Foundation, Inc.
Contributed by CodeSourcery.
#include "reggroups.h"
#include "target.h"
#include "target-descriptions.h"
-#include "vec.h"
#include "xml-support.h"
#include "xml-tdesc.h"
#include "osabi.h"
#include "completer.h"
#include "readline/tilde.h" /* tilde_expand */
-/* The interface to visit different elements of target description. */
-
-class tdesc_element_visitor
-{
-public:
- virtual void visit_pre (const target_desc *e) = 0;
- virtual void visit_post (const target_desc *e) = 0;
-
- virtual void visit_pre (const tdesc_feature *e) = 0;
- virtual void visit_post (const tdesc_feature *e) = 0;
-
- virtual void visit (const tdesc_type_builtin *e) = 0;
- virtual void visit (const tdesc_type_vector *e) = 0;
- virtual void visit (const tdesc_type_with_fields *e) = 0;
-
- virtual void visit (const tdesc_reg *e) = 0;
-};
-
-class tdesc_element
-{
-public:
- virtual void accept (tdesc_element_visitor &v) const = 0;
-};
-
/* Types. */
struct property
std::string value;
};
-/* An individual register from a target description. */
-
-struct tdesc_reg : tdesc_element
-{
- tdesc_reg (struct tdesc_feature *feature, const std::string &name_,
- int regnum, int save_restore_, const char *group_,
- int bitsize_, const char *type_)
- : name (name_), target_regnum (regnum),
- save_restore (save_restore_),
- group (group_ != NULL ? group_ : ""),
- bitsize (bitsize_),
- type (type_ != NULL ? type_ : "<unknown>")
- {
- /* If the register's type is target-defined, look it up now. We may not
- have easy access to the containing feature when we want it later. */
- tdesc_type = tdesc_named_type (feature, type.c_str ());
- }
-
- virtual ~tdesc_reg () = default;
-
- DISABLE_COPY_AND_ASSIGN (tdesc_reg);
-
- /* The name of this register. In standard features, it may be
- recognized by the architecture support code, or it may be purely
- for the user. */
- std::string name;
-
- /* The register number used by this target to refer to this
- register. This is used for remote p/P packets and to determine
- the ordering of registers in the remote g/G packets. */
- long target_regnum;
-
- /* If this flag is set, GDB should save and restore this register
- around calls to an inferior function. */
- int save_restore;
-
- /* The name of the register group containing this register, or empty
- if the group should be automatically determined from the
- register's type. If this is "general", "float", or "vector", the
- corresponding "info" command should display this register's
- value. It can be an arbitrary string, but should be limited to
- alphanumeric characters and internal hyphens. Currently other
- strings are ignored (treated as empty). */
- std::string group;
-
- /* The size of the register, in bits. */
- int bitsize;
-
- /* The type of the register. This string corresponds to either
- a named type from the target description or a predefined
- type from GDB. */
- std::string type;
-
- /* The target-described type corresponding to TYPE, if found. */
- struct tdesc_type *tdesc_type;
-
- void accept (tdesc_element_visitor &v) const override
- {
- v.visit (this);
- }
-
- bool operator== (const tdesc_reg &other) const
- {
- return (name == other.name
- && target_regnum == other.target_regnum
- && save_restore == other.save_restore
- && bitsize == other.bitsize
- && group == other.group
- && type == other.type);
- }
-
- bool operator!= (const tdesc_reg &other) const
- {
- return !(*this == other);
- }
-};
-
-typedef std::unique_ptr<tdesc_reg> tdesc_reg_up;
-
-/* A named type from a target description. */
-
-struct tdesc_type_field
-{
- tdesc_type_field (const std::string &name_, tdesc_type *type_,
- int start_, int end_)
- : name (name_), type (type_), start (start_), end (end_)
- {}
-
- std::string name;
- struct tdesc_type *type;
- /* For non-enum-values, either both are -1 (non-bitfield), or both are
- not -1 (bitfield). For enum values, start is the value (which could be
- -1), end is -1. */
- int start, end;
-};
-
-enum tdesc_type_kind
-{
- /* Predefined types. */
- TDESC_TYPE_BOOL,
- TDESC_TYPE_INT8,
- TDESC_TYPE_INT16,
- TDESC_TYPE_INT32,
- TDESC_TYPE_INT64,
- TDESC_TYPE_INT128,
- TDESC_TYPE_UINT8,
- TDESC_TYPE_UINT16,
- TDESC_TYPE_UINT32,
- TDESC_TYPE_UINT64,
- TDESC_TYPE_UINT128,
- TDESC_TYPE_CODE_PTR,
- TDESC_TYPE_DATA_PTR,
- TDESC_TYPE_IEEE_SINGLE,
- TDESC_TYPE_IEEE_DOUBLE,
- TDESC_TYPE_ARM_FPA_EXT,
- TDESC_TYPE_I387_EXT,
-
- /* Types defined by a target feature. */
- TDESC_TYPE_VECTOR,
- TDESC_TYPE_STRUCT,
- TDESC_TYPE_UNION,
- TDESC_TYPE_FLAGS,
- TDESC_TYPE_ENUM
-};
-
-struct tdesc_type : tdesc_element
-{
- tdesc_type (const std::string &name_, enum tdesc_type_kind kind_)
- : name (name_), kind (kind_)
- {}
-
- virtual ~tdesc_type () = default;
-
- DISABLE_COPY_AND_ASSIGN (tdesc_type);
-
- /* The name of this type. */
- std::string name;
-
- /* Identify the kind of this type. */
- enum tdesc_type_kind kind;
-
- bool operator== (const tdesc_type &other) const
- {
- return name == other.name && kind == other.kind;
- }
-
- bool operator!= (const tdesc_type &other) const
- {
- return !(*this == other);
- }
-
- /* Construct, if necessary, and return the GDB type implementing this
- target type for architecture GDBARCH. */
-
- virtual type *make_gdb_type (struct gdbarch *gdbarch) const = 0;
-};
-
-typedef std::unique_ptr<tdesc_type> tdesc_type_up;
-
-struct tdesc_type_builtin : tdesc_type
-{
- tdesc_type_builtin (const std::string &name, enum tdesc_type_kind kind)
- : tdesc_type (name, kind)
- {}
-
- void accept (tdesc_element_visitor &v) const override
- {
- v.visit (this);
- }
-
- type *make_gdb_type (struct gdbarch *gdbarch) const override
- {
- switch (this->kind)
- {
- /* Predefined types. */
- case TDESC_TYPE_BOOL:
- return builtin_type (gdbarch)->builtin_bool;
-
- case TDESC_TYPE_INT8:
- return builtin_type (gdbarch)->builtin_int8;
-
- case TDESC_TYPE_INT16:
- return builtin_type (gdbarch)->builtin_int16;
-
- case TDESC_TYPE_INT32:
- return builtin_type (gdbarch)->builtin_int32;
-
- case TDESC_TYPE_INT64:
- return builtin_type (gdbarch)->builtin_int64;
-
- case TDESC_TYPE_INT128:
- return builtin_type (gdbarch)->builtin_int128;
-
- case TDESC_TYPE_UINT8:
- return builtin_type (gdbarch)->builtin_uint8;
-
- case TDESC_TYPE_UINT16:
- return builtin_type (gdbarch)->builtin_uint16;
-
- case TDESC_TYPE_UINT32:
- return builtin_type (gdbarch)->builtin_uint32;
-
- case TDESC_TYPE_UINT64:
- return builtin_type (gdbarch)->builtin_uint64;
-
- case TDESC_TYPE_UINT128:
- return builtin_type (gdbarch)->builtin_uint128;
-
- case TDESC_TYPE_CODE_PTR:
- return builtin_type (gdbarch)->builtin_func_ptr;
-
- case TDESC_TYPE_DATA_PTR:
- return builtin_type (gdbarch)->builtin_data_ptr;
- }
-
- type *gdb_type = tdesc_find_type (gdbarch, this->name.c_str ());
- if (gdb_type != NULL)
- return gdb_type;
-
- switch (this->kind)
- {
- case TDESC_TYPE_IEEE_SINGLE:
- return arch_float_type (gdbarch, -1, "builtin_type_ieee_single",
- floatformats_ieee_single);
-
- case TDESC_TYPE_IEEE_DOUBLE:
- return arch_float_type (gdbarch, -1, "builtin_type_ieee_double",
- floatformats_ieee_double);
-
- case TDESC_TYPE_ARM_FPA_EXT:
- return arch_float_type (gdbarch, -1, "builtin_type_arm_ext",
- floatformats_arm_ext);
-
- case TDESC_TYPE_I387_EXT:
- return arch_float_type (gdbarch, -1, "builtin_type_i387_ext",
- floatformats_i387_ext);
- }
-
- internal_error (__FILE__, __LINE__,
- "Type \"%s\" has an unknown kind %d",
- this->name.c_str (), this->kind);
-
- return NULL;
- }
-};
-
-/* tdesc_type for vector types. */
-
-struct tdesc_type_vector : tdesc_type
-{
- tdesc_type_vector (const std::string &name, tdesc_type *element_type_, int count_)
- : tdesc_type (name, TDESC_TYPE_VECTOR),
- element_type (element_type_), count (count_)
- {}
-
- void accept (tdesc_element_visitor &v) const override
- {
- v.visit (this);
- }
-
- type *make_gdb_type (struct gdbarch *gdbarch) const override
- {
- type *vector_gdb_type = tdesc_find_type (gdbarch, this->name.c_str ());
- if (vector_gdb_type != NULL)
- return vector_gdb_type;
-
- type *element_gdb_type = this->element_type->make_gdb_type (gdbarch);
- vector_gdb_type = init_vector_type (element_gdb_type, this->count);
- TYPE_NAME (vector_gdb_type) = xstrdup (this->name.c_str ());
-
- return vector_gdb_type;
- }
-
- struct tdesc_type *element_type;
- int count;
-};
-
-/* tdesc_type for struct, union, flags, and enum types. */
+/* Convert a tdesc_type to a gdb type. */
-struct tdesc_type_with_fields : tdesc_type
+static type *
+make_gdb_type (struct gdbarch *gdbarch, struct tdesc_type *ttype)
{
- tdesc_type_with_fields (const std::string &name, tdesc_type_kind kind,
- int size_ = 0)
- : tdesc_type (name, kind), size (size_)
- {}
-
- void accept (tdesc_element_visitor &v) const override
- {
- v.visit (this);
- }
-
- type *make_gdb_type_struct (struct gdbarch *gdbarch) const
- {
- type *struct_gdb_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
- TYPE_NAME (struct_gdb_type) = xstrdup (this->name.c_str ());
- TYPE_TAG_NAME (struct_gdb_type) = TYPE_NAME (struct_gdb_type);
-
- for (const tdesc_type_field &f : this->fields)
- {
- if (f.start != -1 && f.end != -1)
- {
- /* Bitfield. */
- struct field *fld;
- struct type *field_gdb_type;
- int bitsize, total_size;
-
- /* This invariant should be preserved while creating types. */
- gdb_assert (this->size != 0);
- if (f.type != NULL)
- field_gdb_type = f.type->make_gdb_type (gdbarch);
- else if (this->size > 4)
- field_gdb_type = builtin_type (gdbarch)->builtin_uint64;
- else
- field_gdb_type = builtin_type (gdbarch)->builtin_uint32;
-
- fld = append_composite_type_field_raw
- (struct_gdb_type, xstrdup (f.name.c_str ()), field_gdb_type);
-
- /* For little-endian, BITPOS counts from the LSB of
- the structure and marks the LSB of the field. For
- big-endian, BITPOS counts from the MSB of the
- structure and marks the MSB of the field. Either
- way, it is the number of bits to the "left" of the
- field. To calculate this in big-endian, we need
- the total size of the structure. */
- bitsize = f.end - f.start + 1;
- total_size = this->size * TARGET_CHAR_BIT;
- if (gdbarch_bits_big_endian (gdbarch))
- SET_FIELD_BITPOS (fld[0], total_size - f.start - bitsize);
- else
- SET_FIELD_BITPOS (fld[0], f.start);
- FIELD_BITSIZE (fld[0]) = bitsize;
- }
- else
- {
- gdb_assert (f.start == -1 && f.end == -1);
- type *field_gdb_type = f.type->make_gdb_type (gdbarch);
- append_composite_type_field (struct_gdb_type,
- xstrdup (f.name.c_str ()),
- field_gdb_type);
- }
- }
-
- if (this->size != 0)
- TYPE_LENGTH (struct_gdb_type) = this->size;
-
- return struct_gdb_type;
- }
-
- type *make_gdb_type_union (struct gdbarch *gdbarch) const
+ class gdb_type_creator : public tdesc_element_visitor
{
- type *union_gdb_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION);
- TYPE_NAME (union_gdb_type) = xstrdup (this->name.c_str ());
+ public:
+ gdb_type_creator (struct gdbarch *gdbarch)
+ : m_gdbarch (gdbarch)
+ {}
- for (const tdesc_type_field &f : this->fields)
- {
- type* field_gdb_type = f.type->make_gdb_type (gdbarch);
- append_composite_type_field (union_gdb_type, xstrdup (f.name.c_str ()),
- field_gdb_type);
-
- /* If any of the children of a union are vectors, flag the
- union as a vector also. This allows e.g. a union of two
- vector types to show up automatically in "info vector". */
- if (TYPE_VECTOR (field_gdb_type))
- TYPE_VECTOR (union_gdb_type) = 1;
- }
-
- return union_gdb_type;
- }
-
- type *make_gdb_type_flags (struct gdbarch *gdbarch) const
- {
- type *flags_gdb_type = arch_flags_type (gdbarch, this->name.c_str (),
- this->size * TARGET_CHAR_BIT);
-
- for (const tdesc_type_field &f : this->fields)
- {
- int bitsize = f.end - f.start + 1;
-
- gdb_assert (f.type != NULL);
- type *field_gdb_type = f.type->make_gdb_type (gdbarch);
- append_flags_type_field (flags_gdb_type, f.start, bitsize,
- field_gdb_type, f.name.c_str ());
- }
-
- return flags_gdb_type;
- }
-
- type *make_gdb_type_enum (struct gdbarch *gdbarch) const
- {
- type *enum_gdb_type = arch_type (gdbarch, TYPE_CODE_ENUM,
- this->size * TARGET_CHAR_BIT,
- this->name.c_str ());
+ type *get_type ()
+ {
+ return m_type;
+ }
- TYPE_UNSIGNED (enum_gdb_type) = 1;
- for (const tdesc_type_field &f : this->fields)
- {
- struct field *fld
- = append_composite_type_field_raw (enum_gdb_type,
- xstrdup (f.name.c_str ()),
- NULL);
+ void visit (const tdesc_type_builtin *e) override
+ {
+ switch (e->kind)
+ {
+ /* Predefined types. */
+ case TDESC_TYPE_BOOL:
+ m_type = builtin_type (m_gdbarch)->builtin_bool;
+ return;
+ case TDESC_TYPE_INT8:
+ m_type = builtin_type (m_gdbarch)->builtin_int8;
+ return;
+ case TDESC_TYPE_INT16:
+ m_type = builtin_type (m_gdbarch)->builtin_int16;
+ return;
+ case TDESC_TYPE_INT32:
+ m_type = builtin_type (m_gdbarch)->builtin_int32;
+ return;
+ case TDESC_TYPE_INT64:
+ m_type = builtin_type (m_gdbarch)->builtin_int64;
+ return;
+ case TDESC_TYPE_INT128:
+ m_type = builtin_type (m_gdbarch)->builtin_int128;
+ return;
+ case TDESC_TYPE_UINT8:
+ m_type = builtin_type (m_gdbarch)->builtin_uint8;
+ return;
+ case TDESC_TYPE_UINT16:
+ m_type = builtin_type (m_gdbarch)->builtin_uint16;
+ return;
+ case TDESC_TYPE_UINT32:
+ m_type = builtin_type (m_gdbarch)->builtin_uint32;
+ return;
+ case TDESC_TYPE_UINT64:
+ m_type = builtin_type (m_gdbarch)->builtin_uint64;
+ return;
+ case TDESC_TYPE_UINT128:
+ m_type = builtin_type (m_gdbarch)->builtin_uint128;
+ return;
+ case TDESC_TYPE_CODE_PTR:
+ m_type = builtin_type (m_gdbarch)->builtin_func_ptr;
+ return;
+ case TDESC_TYPE_DATA_PTR:
+ m_type = builtin_type (m_gdbarch)->builtin_data_ptr;
+ return;
+ }
- SET_FIELD_BITPOS (fld[0], f.start);
- }
+ m_type = tdesc_find_type (m_gdbarch, e->name.c_str ());
+ if (m_type != NULL)
+ return;
- return enum_gdb_type;
- }
+ switch (e->kind)
+ {
+ case TDESC_TYPE_IEEE_HALF:
+ m_type = arch_float_type (m_gdbarch, -1, "builtin_type_ieee_half",
+ floatformats_ieee_half);
+ return;
+
+ case TDESC_TYPE_IEEE_SINGLE:
+ m_type = arch_float_type (m_gdbarch, -1, "builtin_type_ieee_single",
+ floatformats_ieee_single);
+ return;
+
+ case TDESC_TYPE_IEEE_DOUBLE:
+ m_type = arch_float_type (m_gdbarch, -1, "builtin_type_ieee_double",
+ floatformats_ieee_double);
+ return;
+ case TDESC_TYPE_ARM_FPA_EXT:
+ m_type = arch_float_type (m_gdbarch, -1, "builtin_type_arm_ext",
+ floatformats_arm_ext);
+ return;
+
+ case TDESC_TYPE_I387_EXT:
+ m_type = arch_float_type (m_gdbarch, -1, "builtin_type_i387_ext",
+ floatformats_i387_ext);
+ return;
+
+ case TDESC_TYPE_BFLOAT16:
+ m_type = arch_float_type (m_gdbarch, -1, "builtin_type_bfloat16",
+ floatformats_bfloat16);
+ return;
+ }
- type *make_gdb_type (struct gdbarch *gdbarch) const override
- {
- type *gdb_type = tdesc_find_type (gdbarch, this->name.c_str ());
- if (gdb_type != NULL)
- return gdb_type;
+ internal_error (__FILE__, __LINE__,
+ "Type \"%s\" has an unknown kind %d",
+ e->name.c_str (), e->kind);
+ }
- switch (this->kind)
+ void visit (const tdesc_type_vector *e) override
{
- case TDESC_TYPE_STRUCT:
- return make_gdb_type_struct (gdbarch);
- case TDESC_TYPE_UNION:
- return make_gdb_type_union (gdbarch);
- case TDESC_TYPE_FLAGS:
- return make_gdb_type_flags (gdbarch);
- case TDESC_TYPE_ENUM:
- return make_gdb_type_enum (gdbarch);
+ m_type = tdesc_find_type (m_gdbarch, e->name.c_str ());
+ if (m_type != NULL)
+ return;
+
+ type *element_gdb_type = make_gdb_type (m_gdbarch, e->element_type);
+ m_type = init_vector_type (element_gdb_type, e->count);
+ m_type->set_name (xstrdup (e->name.c_str ()));
+ return;
}
- internal_error (__FILE__, __LINE__,
- "Type \"%s\" has an unknown kind %d",
- this->name.c_str (), this->kind);
+ void visit (const tdesc_type_with_fields *e) override
+ {
+ m_type = tdesc_find_type (m_gdbarch, e->name.c_str ());
+ if (m_type != NULL)
+ return;
- return NULL;
- }
+ switch (e->kind)
+ {
+ case TDESC_TYPE_STRUCT:
+ make_gdb_type_struct (e);
+ return;
+ case TDESC_TYPE_UNION:
+ make_gdb_type_union (e);
+ return;
+ case TDESC_TYPE_FLAGS:
+ make_gdb_type_flags (e);
+ return;
+ case TDESC_TYPE_ENUM:
+ make_gdb_type_enum (e);
+ return;
+ }
- std::vector<tdesc_type_field> fields;
- int size;
-};
+ internal_error (__FILE__, __LINE__,
+ "Type \"%s\" has an unknown kind %d",
+ e->name.c_str (), e->kind);
+ }
-/* A feature from a target description. Each feature is a collection
- of other elements, e.g. registers and types. */
+ private:
-struct tdesc_feature : tdesc_element
-{
- tdesc_feature (const std::string &name_)
- : name (name_)
- {}
+ void make_gdb_type_struct (const tdesc_type_with_fields *e)
+ {
+ m_type = arch_composite_type (m_gdbarch, NULL, TYPE_CODE_STRUCT);
+ m_type->set_name (xstrdup (e->name.c_str ()));
- virtual ~tdesc_feature () = default;
+ for (const tdesc_type_field &f : e->fields)
+ {
+ if (f.start != -1 && f.end != -1)
+ {
+ /* Bitfield. */
+ struct field *fld;
+ struct type *field_gdb_type;
+ int bitsize, total_size;
+
+ /* This invariant should be preserved while creating types. */
+ gdb_assert (e->size != 0);
+ if (f.type != NULL)
+ field_gdb_type = make_gdb_type (m_gdbarch, f.type);
+ else if (e->size > 4)
+ field_gdb_type = builtin_type (m_gdbarch)->builtin_uint64;
+ else
+ field_gdb_type = builtin_type (m_gdbarch)->builtin_uint32;
+
+ fld = append_composite_type_field_raw
+ (m_type, xstrdup (f.name.c_str ()), field_gdb_type);
+
+ /* For little-endian, BITPOS counts from the LSB of
+ the structure and marks the LSB of the field. For
+ big-endian, BITPOS counts from the MSB of the
+ structure and marks the MSB of the field. Either
+ way, it is the number of bits to the "left" of the
+ field. To calculate this in big-endian, we need
+ the total size of the structure. */
+ bitsize = f.end - f.start + 1;
+ total_size = e->size * TARGET_CHAR_BIT;
+ if (gdbarch_byte_order (m_gdbarch) == BFD_ENDIAN_BIG)
+ SET_FIELD_BITPOS (fld[0], total_size - f.start - bitsize);
+ else
+ SET_FIELD_BITPOS (fld[0], f.start);
+ FIELD_BITSIZE (fld[0]) = bitsize;
+ }
+ else
+ {
+ gdb_assert (f.start == -1 && f.end == -1);
+ type *field_gdb_type = make_gdb_type (m_gdbarch, f.type);
+ append_composite_type_field (m_type,
+ xstrdup (f.name.c_str ()),
+ field_gdb_type);
+ }
+ }
- DISABLE_COPY_AND_ASSIGN (tdesc_feature);
+ if (e->size != 0)
+ TYPE_LENGTH (m_type) = e->size;
+ }
- /* The name of this feature. It may be recognized by the architecture
- support code. */
- std::string name;
+ void make_gdb_type_union (const tdesc_type_with_fields *e)
+ {
+ m_type = arch_composite_type (m_gdbarch, NULL, TYPE_CODE_UNION);
+ m_type->set_name (xstrdup (e->name.c_str ()));
- /* The registers associated with this feature. */
- std::vector<tdesc_reg_up> registers;
+ for (const tdesc_type_field &f : e->fields)
+ {
+ type* field_gdb_type = make_gdb_type (m_gdbarch, f.type);
+ append_composite_type_field (m_type, xstrdup (f.name.c_str ()),
+ field_gdb_type);
+
+ /* If any of the children of a union are vectors, flag the
+ union as a vector also. This allows e.g. a union of two
+ vector types to show up automatically in "info vector". */
+ if (field_gdb_type->is_vector ())
+ m_type->set_is_vector (true);
+ }
+ }
- /* The types associated with this feature. */
- std::vector<tdesc_type_up> types;
+ void make_gdb_type_flags (const tdesc_type_with_fields *e)
+ {
+ m_type = arch_flags_type (m_gdbarch, e->name.c_str (),
+ e->size * TARGET_CHAR_BIT);
- void accept (tdesc_element_visitor &v) const override
- {
- v.visit_pre (this);
+ for (const tdesc_type_field &f : e->fields)
+ {
+ int bitsize = f.end - f.start + 1;
- for (const tdesc_type_up &type : types)
- type->accept (v);
+ gdb_assert (f.type != NULL);
+ type *field_gdb_type = make_gdb_type (m_gdbarch, f.type);
+ append_flags_type_field (m_type, f.start, bitsize,
+ field_gdb_type, f.name.c_str ());
+ }
+ }
- for (const tdesc_reg_up ® : registers)
- reg->accept (v);
+ void make_gdb_type_enum (const tdesc_type_with_fields *e)
+ {
+ m_type = arch_type (m_gdbarch, TYPE_CODE_ENUM, e->size * TARGET_CHAR_BIT,
+ e->name.c_str ());
- v.visit_post (this);
- }
+ m_type->set_is_unsigned (true);
- bool operator== (const tdesc_feature &other) const
- {
- if (name != other.name)
- return false;
+ for (const tdesc_type_field &f : e->fields)
+ {
+ struct field *fld
+ = append_composite_type_field_raw (m_type,
+ xstrdup (f.name.c_str ()),
+ NULL);
- if (registers.size () != other.registers.size ())
- return false;
+ SET_FIELD_BITPOS (fld[0], f.start);
+ }
+ }
- for (int ix = 0; ix < registers.size (); ix++)
- {
- const tdesc_reg_up ®1 = registers[ix];
- const tdesc_reg_up ®2 = other.registers[ix];
+ /* The gdbarch used. */
+ struct gdbarch *m_gdbarch;
- if (reg1 != reg2 && *reg1 != *reg2)
- return false;
- }
+ /* The type created. */
+ type *m_type;
+ };
- if (types.size () != other.types.size ())
- return false;
+ gdb_type_creator gdb_type (gdbarch);
+ ttype->accept (gdb_type);
+ return gdb_type.get_type ();
+}
- for (int ix = 0; ix < types.size (); ix++)
- {
- const tdesc_type_up &type1 = types[ix];
- const tdesc_type_up &type2 = other.types[ix];
+/* Wrapper around bfd_arch_info_type. A class with this name is used in
+ the API that is shared between gdb and gdbserver code, but gdbserver
+ doesn't use compatibility information, so its version of this class is
+ empty. */
- if (type1 != type2 && *type1 != *type2)
- return false;
- }
+class tdesc_compatible_info
+{
+public:
+ /* Constructor. */
+ explicit tdesc_compatible_info (const bfd_arch_info_type *arch)
+ : m_arch (arch)
+ { /* Nothing. */ }
- return true;
- }
+ /* Access the contained pointer. */
+ const bfd_arch_info_type *arch () const
+ { return m_arch; }
- bool operator!= (const tdesc_feature &other) const
- {
- return !(*this == other);
- }
+private:
+ /* Architecture information looked up from the <compatible> entity within
+ a target description. */
+ const bfd_arch_info_type *m_arch;
};
-typedef std::unique_ptr<tdesc_feature> tdesc_feature_up;
-
/* A target description. */
struct target_desc : tdesc_element
enum gdb_osabi osabi = GDB_OSABI_UNKNOWN;
/* The list of compatible architectures reported by the target. */
- std::vector<const bfd_arch_info *> compatible;
+ std::vector<tdesc_compatible_info_up> compatible;
/* Any architecture-specific properties specified by the target. */
std::vector<property> properties;
/* The features associated with this target. */
std::vector<tdesc_feature_up> features;
+ /* Used to cache the generated xml version of the target description. */
+ mutable char *xmltarget = nullptr;
+
void accept (tdesc_element_visitor &v) const override
{
v.visit_pre (this);
/* A flag indicating that a description has already been fetched
from the target, so it should not be queried again. */
- int fetched;
+ bool fetched = false;
/* The description fetched from the target, or NULL if the target
did not supply any description. Only valid when
- target_desc_fetched is set. Only the description initialization
+ FETCHED is set. Only the description initialization
code should access this; normally, the description should be
accessed through the gdbarch object. */
- const struct target_desc *tdesc;
+ const struct target_desc *tdesc = nullptr;
- /* The filename to read a target description from, as set by "set
- tdesc filename ..." */
+ /* If not empty, the filename to read a target description from, as set by
+ "set tdesc filename ...".
- char *filename;
+ If empty, there is not filename specified by the user. */
+
+ std::string filename;
};
/* Get the inferior INF's target description info, allocating one on
get_tdesc_info (struct inferior *inf)
{
if (inf->tdesc_info == NULL)
- inf->tdesc_info = XCNEW (struct target_desc_info);
+ inf->tdesc_info = new target_desc_info;
+
return inf->tdesc_info;
}
int
target_desc_info_from_user_p (struct target_desc_info *info)
{
- return info != NULL && info->filename != NULL;
+ return info != nullptr && !info->filename.empty ();
}
/* See target-descriptions.h. */
struct target_desc_info *src = get_tdesc_info (srcinf);
struct target_desc_info *dest = get_tdesc_info (destinf);
- dest->fetched = src->fetched;
- dest->tdesc = src->tdesc;
- dest->filename = src->filename != NULL ? xstrdup (src->filename) : NULL;
+ *dest = *src;
}
/* See target-descriptions.h. */
void
target_desc_info_free (struct target_desc_info *tdesc_info)
{
- if (tdesc_info != NULL)
- {
- xfree (tdesc_info->filename);
- xfree (tdesc_info);
- }
+ delete tdesc_info;
}
-/* Convenience helper macros. */
-
-#define target_desc_fetched \
- get_tdesc_info (current_inferior ())->fetched
-#define current_target_desc \
- get_tdesc_info (current_inferior ())->tdesc
-#define target_description_filename \
- get_tdesc_info (current_inferior ())->filename
-
/* The string manipulated by the "set tdesc filename ..." command. */
static char *tdesc_filename_cmd_string;
void
target_find_description (void)
{
+ target_desc_info *tdesc_info = get_tdesc_info (current_inferior ());
+
/* If we've already fetched a description from the target, don't do
it again. This allows a target to fetch the description early,
during its to_open or to_create_inferior, if it needs extra
information about the target to initialize. */
- if (target_desc_fetched)
+ if (tdesc_info->fetched)
return;
/* The current architecture should not have any target description
/* First try to fetch an XML description from the user-specified
file. */
- current_target_desc = NULL;
- if (target_description_filename != NULL
- && *target_description_filename != '\0')
- current_target_desc
- = file_read_description_xml (target_description_filename);
+ tdesc_info->tdesc = nullptr;
+ if (!tdesc_info->filename.empty ())
+ tdesc_info->tdesc = file_read_description_xml (tdesc_info->filename.data ());
/* Next try to read the description from the current target using
target objects. */
- if (current_target_desc == NULL)
- current_target_desc = target_read_description_xml (¤t_target);
+ if (tdesc_info->tdesc == nullptr)
+ tdesc_info->tdesc = target_read_description_xml
+ (current_inferior ()->top_target ());
/* If that failed try a target-specific hook. */
- if (current_target_desc == NULL)
- current_target_desc = target_read_description (¤t_target);
+ if (tdesc_info->tdesc == nullptr)
+ tdesc_info->tdesc = target_read_description
+ (current_inferior ()->top_target ());
/* If a non-NULL description was returned, then update the current
architecture. */
- if (current_target_desc)
+ if (tdesc_info->tdesc != nullptr)
{
struct gdbarch_info info;
- gdbarch_info_init (&info);
- info.target_desc = current_target_desc;
+ info.target_desc = tdesc_info->tdesc;
if (!gdbarch_update_p (info))
warning (_("Architecture rejected target-supplied description"));
else
data = ((struct tdesc_arch_data *)
gdbarch_data (target_gdbarch (), tdesc_data));
- if (tdesc_has_registers (current_target_desc)
+ if (tdesc_has_registers (tdesc_info->tdesc)
&& data->arch_regs.empty ())
warning (_("Target-supplied registers are not supported "
"by the current architecture"));
/* Now that we know this description is usable, record that we
fetched it. */
- target_desc_fetched = 1;
+ tdesc_info->fetched = true;
}
/* Discard any description fetched from the current target, and switch
void
target_clear_description (void)
{
- struct gdbarch_info info;
+ target_desc_info *tdesc_info = get_tdesc_info (current_inferior ());
- if (!target_desc_fetched)
+ if (!tdesc_info->fetched)
return;
- target_desc_fetched = 0;
- current_target_desc = NULL;
+ tdesc_info->fetched = false;
+ tdesc_info->tdesc = nullptr;
- gdbarch_info_init (&info);
+ gdbarch_info info;
if (!gdbarch_update_p (info))
internal_error (__FILE__, __LINE__,
_("Could not remove target-supplied description"));
const struct target_desc *
target_current_description (void)
{
- if (target_desc_fetched)
- return current_target_desc;
+ target_desc_info *tdesc_info = get_tdesc_info (current_inferior ());
+
+ if (tdesc_info->fetched)
+ return tdesc_info->tdesc;
return NULL;
}
tdesc_compatible_p (const struct target_desc *target_desc,
const struct bfd_arch_info *arch)
{
- for (const bfd_arch_info *compat : target_desc->compatible)
+ for (const tdesc_compatible_info_up &compat : target_desc->compatible)
{
- if (compat == arch
- || arch->compatible (arch, compat)
- || compat->compatible (compat, arch))
+ if (compat->arch () == arch
+ || arch->compatible (arch, compat->arch ())
+ || compat->arch ()->compatible (compat->arch (), arch))
return 1;
}
return target_desc->arch;
}
+/* See gdbsupport/tdesc.h. */
+
+const char *
+tdesc_architecture_name (const struct target_desc *target_desc)
+{
+ if (target_desc->arch != NULL)
+ return target_desc->arch->printable_name;
+ return NULL;
+}
+
+/* See gdbsupport/tdesc.h. */
+
+const std::vector<tdesc_compatible_info_up> &
+tdesc_compatible_info_list (const target_desc *target_desc)
+{
+ return target_desc->compatible;
+}
+
+/* See gdbsupport/tdesc.h. */
+
+const char *
+tdesc_compatible_info_arch_name (const tdesc_compatible_info_up &compatible)
+{
+ return compatible->arch ()->printable_name;
+}
+
/* Return the OSABI associated with this target description, or
GDB_OSABI_UNKNOWN if no osabi was specified. */
return target_desc->osabi;
}
-\f
+/* See gdbsupport/tdesc.h. */
+
+const char *
+tdesc_osabi_name (const struct target_desc *target_desc)
+{
+ enum gdb_osabi osabi = tdesc_osabi (target_desc);
+ if (osabi > GDB_OSABI_UNKNOWN && osabi < GDB_OSABI_INVALID)
+ return gdbarch_osabi_name (osabi);
+ return nullptr;
+}
/* Return 1 if this target description includes any registers. */
return feature->name.c_str ();
}
-/* Predefined types. */
-static tdesc_type_builtin tdesc_predefined_types[] =
-{
- { "bool", TDESC_TYPE_BOOL },
- { "int8", TDESC_TYPE_INT8 },
- { "int16", TDESC_TYPE_INT16 },
- { "int32", TDESC_TYPE_INT32 },
- { "int64", TDESC_TYPE_INT64 },
- { "int128", TDESC_TYPE_INT128 },
- { "uint8", TDESC_TYPE_UINT8 },
- { "uint16", TDESC_TYPE_UINT16 },
- { "uint32", TDESC_TYPE_UINT32 },
- { "uint64", TDESC_TYPE_UINT64 },
- { "uint128", TDESC_TYPE_UINT128 },
- { "code_ptr", TDESC_TYPE_CODE_PTR },
- { "data_ptr", TDESC_TYPE_DATA_PTR },
- { "ieee_single", TDESC_TYPE_IEEE_SINGLE },
- { "ieee_double", TDESC_TYPE_IEEE_DOUBLE },
- { "arm_fpa_ext", TDESC_TYPE_ARM_FPA_EXT },
- { "i387_ext", TDESC_TYPE_I387_EXT }
-};
-
-/* Lookup a predefined type. */
-
-static struct tdesc_type *
-tdesc_predefined_type (enum tdesc_type_kind kind)
-{
- for (int ix = 0; ix < ARRAY_SIZE (tdesc_predefined_types); ix++)
- if (tdesc_predefined_types[ix].kind == kind)
- return &tdesc_predefined_types[ix];
-
- gdb_assert_not_reached ("bad predefined tdesc type");
-}
-
-/* See arch/tdesc.h. */
-
-struct tdesc_type *
-tdesc_named_type (const struct tdesc_feature *feature, const char *id)
-{
- /* First try target-defined types. */
- for (const tdesc_type_up &type : feature->types)
- if (type->name == id)
- return type.get ();
-
- /* Next try the predefined types. */
- for (int ix = 0; ix < ARRAY_SIZE (tdesc_predefined_types); ix++)
- if (tdesc_predefined_types[ix].name == id)
- return &tdesc_predefined_types[ix];
-
- return NULL;
-}
-
/* Lookup type associated with ID. */
struct type *
static void *
tdesc_data_init (struct obstack *obstack)
{
- struct tdesc_arch_data *data;
-
- data = OBSTACK_ZALLOC (obstack, struct tdesc_arch_data);
- new (data) tdesc_arch_data ();
-
- return data;
+ return obstack_new<tdesc_arch_data> (obstack);
}
/* Similar, but for the temporary copy used during architecture
initialization. */
-struct tdesc_arch_data *
+tdesc_arch_data_up
tdesc_data_alloc (void)
{
- return new tdesc_arch_data ();
+ return tdesc_arch_data_up (new tdesc_arch_data ());
}
-/* Free something allocated by tdesc_data_alloc, if it is not going
- to be used (for instance if it was unsuitable for the
- architecture). */
+/* See target-descriptions.h. */
void
-tdesc_data_cleanup (void *data_untyped)
+tdesc_arch_data_deleter::operator() (struct tdesc_arch_data *data) const
{
- struct tdesc_arch_data *data = (struct tdesc_arch_data *) data_untyped;
-
delete data;
}
bits. The register must exist. */
int
-tdesc_register_size (const struct tdesc_feature *feature,
- const char *name)
+tdesc_register_bitsize (const struct tdesc_feature *feature, const char *name)
{
struct tdesc_reg *reg = tdesc_find_register_early (feature, name);
{
struct tdesc_reg *reg = tdesc_find_register (gdbarch, regno);
int num_regs = gdbarch_num_regs (gdbarch);
- int num_pseudo_regs = gdbarch_num_pseudo_regs (gdbarch);
if (reg != NULL)
return reg->name.c_str ();
- if (regno >= num_regs && regno < num_regs + num_pseudo_regs)
+ if (regno >= num_regs && regno < gdbarch_num_cooked_regs (gdbarch))
{
struct tdesc_arch_data *data
= (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data);
{
/* First check for a predefined or target defined type. */
if (reg->tdesc_type)
- arch_reg->type = reg->tdesc_type->make_gdb_type (gdbarch);
+ arch_reg->type = make_gdb_type (gdbarch, reg->tdesc_type);
/* Next try size-sensitive type shortcuts. */
else if (reg->type == "float")
}
/* Check whether REGNUM is a member of REGGROUP. Registers from the
- target description may be classified as general, float, or vector.
- Unlike a gdbarch register_reggroup_p method, this function will
- return -1 if it does not know; the caller should handle registers
- with no specified group.
-
- Arbitrary strings (other than "general", "float", and "vector")
- from the description are not used; they cause the register to be
- displayed in "info all-registers" but excluded from "info
- registers" et al. The names of containing features are also not
- used. This might be extended to display registers in some more
- useful groupings.
+ target description may be classified as general, float, vector or other
+ register groups registered with reggroup_add(). Unlike a gdbarch
+ register_reggroup_p method, this function will return -1 if it does not
+ know; the caller should handle registers with no specified group.
+
+ The names of containing features are not used. This might be extended
+ to display registers in some more useful groupings.
The save-restore flag is also implemented here. */
{
struct tdesc_reg *reg = tdesc_find_register (gdbarch, regno);
- if (reg != NULL && !reg->group.empty ())
- {
- int general_p = 0, float_p = 0, vector_p = 0;
-
- if (reg->group == "general")
- general_p = 1;
- else if (reg->group == "float")
- float_p = 1;
- else if (reg->group == "vector")
- vector_p = 1;
-
- if (reggroup == float_reggroup)
- return float_p;
-
- if (reggroup == vector_reggroup)
- return vector_p;
-
- if (reggroup == general_reggroup)
- return general_p;
- }
+ if (reg != NULL && !reg->group.empty ()
+ && (reg->group == reggroup_name (reggroup)))
+ return 1;
if (reg != NULL
&& (reggroup == save_reggroup || reggroup == restore_reggroup))
void
tdesc_use_registers (struct gdbarch *gdbarch,
const struct target_desc *target_desc,
- struct tdesc_arch_data *early_data)
+ tdesc_arch_data_up &&early_data,
+ tdesc_unknown_register_ftype unk_reg_cb)
{
int num_regs = gdbarch_num_regs (gdbarch);
struct tdesc_arch_data *data;
- htab_t reg_hash;
/* We can't use the description for registers if it doesn't describe
any. This function should only be called after validating
gdb_assert (tdesc_has_registers (target_desc));
data = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data);
- data->arch_regs = early_data->arch_regs;
- delete early_data;
+ data->arch_regs = std::move (early_data->arch_regs);
/* Build up a set of all registers, so that we can assign register
numbers where needed. The hash table expands as necessary, so
the initial size is arbitrary. */
- reg_hash = htab_create (37, htab_hash_pointer, htab_eq_pointer, NULL);
+ htab_up reg_hash (htab_create (37, htab_hash_pointer, htab_eq_pointer,
+ NULL));
for (const tdesc_feature_up &feature : target_desc->features)
for (const tdesc_reg_up ® : feature->registers)
{
- void **slot = htab_find_slot (reg_hash, reg.get (), INSERT);
+ void **slot = htab_find_slot (reg_hash.get (), reg.get (), INSERT);
*slot = reg.get ();
+ /* Add reggroup if its new. */
+ if (!reg->group.empty ())
+ if (reggroup_find (gdbarch, reg->group.c_str ()) == NULL)
+ reggroup_add (gdbarch, reggroup_gdbarch_new (gdbarch,
+ reg->group.c_str (),
+ USER_REGGROUP));
}
/* Remove any registers which were assigned numbers by the
architecture. */
for (const tdesc_arch_reg &arch_reg : data->arch_regs)
if (arch_reg.reg != NULL)
- htab_remove_elt (reg_hash, arch_reg.reg);
+ htab_remove_elt (reg_hash.get (), arch_reg.reg);
/* Assign numbers to the remaining registers and add them to the
list of registers. The new numbers are always above gdbarch_num_regs.
while (data->arch_regs.size () < num_regs)
data->arch_regs.emplace_back (nullptr, nullptr);
+ /* First we give the target a chance to number previously unknown
+ registers. This allows targets to record the numbers assigned based
+ on which feature the register was from. */
+ if (unk_reg_cb != NULL)
+ {
+ for (const tdesc_feature_up &feature : target_desc->features)
+ for (const tdesc_reg_up ® : feature->registers)
+ if (htab_find (reg_hash.get (), reg.get ()) != NULL)
+ {
+ int regno = unk_reg_cb (gdbarch, feature.get (),
+ reg->name.c_str (), num_regs);
+ gdb_assert (regno == -1 || regno >= num_regs);
+ if (regno != -1)
+ {
+ while (regno >= data->arch_regs.size ())
+ data->arch_regs.emplace_back (nullptr, nullptr);
+ data->arch_regs[regno] = tdesc_arch_reg (reg.get (), NULL);
+ num_regs = regno + 1;
+ htab_remove_elt (reg_hash.get (), reg.get ());
+ }
+ }
+ }
+
+ /* Ensure the array was sized correctly above. */
+ gdb_assert (data->arch_regs.size () == num_regs);
+
+ /* Now in a final pass we assign register numbers to any remaining
+ unnumbered registers. */
for (const tdesc_feature_up &feature : target_desc->features)
for (const tdesc_reg_up ® : feature->registers)
- if (htab_find (reg_hash, reg.get ()) != NULL)
+ if (htab_find (reg_hash.get (), reg.get ()) != NULL)
{
data->arch_regs.emplace_back (reg.get (), nullptr);
num_regs++;
}
- htab_delete (reg_hash);
-
/* Update the architecture. */
set_gdbarch_num_regs (gdbarch, num_regs);
set_gdbarch_register_name (gdbarch, tdesc_register_name);
tdesc_remote_register_number);
set_gdbarch_register_reggroup_p (gdbarch, tdesc_register_reggroup_p);
}
-\f
-
-/* See arch/tdesc.h. */
-
-void
-tdesc_create_reg (struct tdesc_feature *feature, const char *name,
- int regnum, int save_restore, const char *group,
- int bitsize, const char *type)
-{
- tdesc_reg *reg = new tdesc_reg (feature, name, regnum, save_restore,
- group, bitsize, type);
-
- feature->registers.emplace_back (reg);
-}
-
-/* See arch/tdesc.h. */
-
-struct tdesc_type *
-tdesc_create_vector (struct tdesc_feature *feature, const char *name,
- struct tdesc_type *field_type, int count)
-{
- tdesc_type_vector *type = new tdesc_type_vector (name, field_type, count);
- feature->types.emplace_back (type);
-
- return type;
-}
-
-/* See arch/tdesc.h. */
-
-tdesc_type_with_fields *
-tdesc_create_struct (struct tdesc_feature *feature, const char *name)
-{
- tdesc_type_with_fields *type
- = new tdesc_type_with_fields (name, TDESC_TYPE_STRUCT);
- feature->types.emplace_back (type);
-
- return type;
-}
-
-/* See arch/tdesc.h. */
-
-void
-tdesc_set_struct_size (tdesc_type_with_fields *type, int size)
-{
- gdb_assert (type->kind == TDESC_TYPE_STRUCT);
- gdb_assert (size > 0);
- type->size = size;
-}
-
-/* See arch/tdesc.h. */
-
-tdesc_type_with_fields *
-tdesc_create_union (struct tdesc_feature *feature, const char *name)
-{
- tdesc_type_with_fields *type
- = new tdesc_type_with_fields (name, TDESC_TYPE_UNION);
- feature->types.emplace_back (type);
-
- return type;
-}
-
-/* See arch/tdesc.h. */
-
-tdesc_type_with_fields *
-tdesc_create_flags (struct tdesc_feature *feature, const char *name,
- int size)
-{
- gdb_assert (size > 0);
-
- tdesc_type_with_fields *type
- = new tdesc_type_with_fields (name, TDESC_TYPE_FLAGS, size);
- feature->types.emplace_back (type);
-
- return type;
-}
-
-tdesc_type_with_fields *
-tdesc_create_enum (struct tdesc_feature *feature, const char *name,
- int size)
-{
- gdb_assert (size > 0);
-
- tdesc_type_with_fields *type
- = new tdesc_type_with_fields (name, TDESC_TYPE_ENUM, size);
- feature->types.emplace_back (type);
-
- return type;
-}
-
-/* See arch/tdesc.h. */
-
-void
-tdesc_add_field (tdesc_type_with_fields *type, const char *field_name,
- struct tdesc_type *field_type)
-{
- gdb_assert (type->kind == TDESC_TYPE_UNION
- || type->kind == TDESC_TYPE_STRUCT);
-
- /* Initialize start and end so we know this is not a bit-field
- when we print-c-tdesc. */
- type->fields.emplace_back (field_name, field_type, -1, -1);
-}
-
-void
-tdesc_add_typed_bitfield (tdesc_type_with_fields *type, const char *field_name,
- int start, int end, struct tdesc_type *field_type)
-{
- gdb_assert (type->kind == TDESC_TYPE_STRUCT
- || type->kind == TDESC_TYPE_FLAGS);
- gdb_assert (start >= 0 && end >= start);
-
- type->fields.emplace_back (field_name, field_type, start, end);
-}
-
-/* See arch/tdesc.h. */
-
-void
-tdesc_add_bitfield (tdesc_type_with_fields *type, const char *field_name,
- int start, int end)
-{
- struct tdesc_type *field_type;
-
- gdb_assert (start >= 0 && end >= start);
-
- if (type->size > 4)
- field_type = tdesc_predefined_type (TDESC_TYPE_UINT64);
- else
- field_type = tdesc_predefined_type (TDESC_TYPE_UINT32);
-
- tdesc_add_typed_bitfield (type, field_name, start, end, field_type);
-}
-/* See arch/tdesc.h. */
-
-void
-tdesc_add_flag (tdesc_type_with_fields *type, int start,
- const char *flag_name)
-{
- gdb_assert (type->kind == TDESC_TYPE_FLAGS
- || type->kind == TDESC_TYPE_STRUCT);
-
- type->fields.emplace_back (flag_name,
- tdesc_predefined_type (TDESC_TYPE_BOOL),
- start, start);
-}
-
-void
-tdesc_add_enum_value (tdesc_type_with_fields *type, int value,
- const char *name)
-{
- gdb_assert (type->kind == TDESC_TYPE_ENUM);
- type->fields.emplace_back (name,
- tdesc_predefined_type (TDESC_TYPE_INT32),
- value, -1);
-}
-
-/* See arch/tdesc.h. */
+/* See gdbsupport/tdesc.h. */
struct tdesc_feature *
-tdesc_create_feature (struct target_desc *tdesc, const char *name,
- const char *xml)
+tdesc_create_feature (struct target_desc *tdesc, const char *name)
{
struct tdesc_feature *new_feature = new tdesc_feature (name);
return new_feature;
}
-struct target_desc *
+/* See gdbsupport/tdesc.h. */
+
+target_desc_up
allocate_target_description (void)
{
- return new target_desc ();
+ return target_desc_up (new target_desc ());
}
-static void
-free_target_description (void *arg)
-{
- struct target_desc *target_desc = (struct target_desc *) arg;
-
- delete target_desc;
-}
+/* See gdbsupport/tdesc.h. */
-struct cleanup *
-make_cleanup_free_target_description (struct target_desc *target_desc)
+void
+target_desc_deleter::operator() (struct target_desc *target_desc) const
{
- return make_cleanup (free_target_description, target_desc);
+ delete target_desc;
}
void
if (compatible == NULL)
return;
- for (const bfd_arch_info *compat : target_desc->compatible)
- if (compat == compatible)
+ for (const tdesc_compatible_info_up &compat : target_desc->compatible)
+ if (compat->arch () == compatible)
internal_error (__FILE__, __LINE__,
_("Attempted to add duplicate "
"compatible architecture \"%s\""),
compatible->printable_name);
- target_desc->compatible.push_back (compatible);
+ target_desc->compatible.push_back
+ (std::unique_ptr<tdesc_compatible_info>
+ (new tdesc_compatible_info (compatible)));
}
void
target_desc->properties.emplace_back (key, value);
}
-/* See arch/tdesc.h. */
+/* See gdbsupport/tdesc.h. */
void
set_tdesc_architecture (struct target_desc *target_desc,
target_desc->arch = arch;
}
-/* See arch/tdesc.h. */
+/* See gdbsupport/tdesc.h. */
void
set_tdesc_osabi (struct target_desc *target_desc, const char *name)
/* Helper functions for the CLI commands. */
-static void
-set_tdesc_cmd (const char *args, int from_tty)
-{
- help_list (tdesc_set_cmdlist, "set tdesc ", all_commands, gdb_stdout);
-}
-
-static void
-show_tdesc_cmd (const char *args, int from_tty)
-{
- cmd_show_list (tdesc_show_cmdlist, from_tty, "");
-}
-
-static void
-unset_tdesc_cmd (const char *args, int from_tty)
-{
- help_list (tdesc_unset_cmdlist, "unset tdesc ", all_commands, gdb_stdout);
-}
-
static void
set_tdesc_filename_cmd (const char *args, int from_tty,
struct cmd_list_element *c)
{
- xfree (target_description_filename);
- target_description_filename = xstrdup (tdesc_filename_cmd_string);
+ target_desc_info *tdesc_info = get_tdesc_info (current_inferior ());
+
+ tdesc_info->filename = tdesc_filename_cmd_string;
target_clear_description ();
target_find_description ();
struct cmd_list_element *c,
const char *value)
{
- value = target_description_filename;
+ value = get_tdesc_info (current_inferior ())->filename.data ();
if (value != NULL && *value != '\0')
printf_filtered (_("The target description will be read from \"%s\".\n"),
static void
unset_tdesc_filename_cmd (const char *args, int from_tty)
{
- xfree (target_description_filename);
- target_description_filename = NULL;
+ target_desc_info *tdesc_info = get_tdesc_info (current_inferior ());
+
+ tdesc_info->filename.clear ();
target_clear_description ();
target_find_description ();
}
break;
else if (*inp == '-')
*outp++ = '_';
+ else if (*inp == ' ')
+ *outp++ = '_';
else
*outp++ = *inp;
*outp = '\0';
printf_unfiltered ("initialize_tdesc_%s (void)\n", m_function);
printf_unfiltered ("{\n");
printf_unfiltered
- (" struct target_desc *result = allocate_target_description ();\n");
+ (" target_desc_up result = allocate_target_description ();\n");
if (tdesc_architecture (e) != NULL)
{
printf_unfiltered
- (" set_tdesc_architecture (result, bfd_scan_arch (\"%s\"));\n",
+ (" set_tdesc_architecture (result.get (), bfd_scan_arch (\"%s\"));\n",
tdesc_architecture (e)->printable_name);
printf_unfiltered ("\n");
}
&& tdesc_osabi (e) < GDB_OSABI_INVALID)
{
printf_unfiltered
- (" set_tdesc_osabi (result, osabi_from_tdesc_string (\"%s\"));\n",
+ (" set_tdesc_osabi (result.get (), osabi_from_tdesc_string (\"%s\"));\n",
gdbarch_osabi_name (tdesc_osabi (e)));
printf_unfiltered ("\n");
}
- for (const bfd_arch_info_type *compatible : e->compatible)
+ for (const tdesc_compatible_info_up &compatible : e->compatible)
printf_unfiltered
- (" tdesc_add_compatible (result, bfd_scan_arch (\"%s\"));\n",
- compatible->printable_name);
+ (" tdesc_add_compatible (result.get (), bfd_scan_arch (\"%s\"));\n",
+ compatible->arch ()->printable_name);
if (!e->compatible.empty ())
printf_unfiltered ("\n");
for (const property &prop : e->properties)
- printf_unfiltered (" set_tdesc_property (result, \"%s\", \"%s\");\n",
+ printf_unfiltered (" set_tdesc_property (result.get (), \"%s\", \"%s\");\n",
prop.key.c_str (), prop.value.c_str ());
printf_unfiltered (" struct tdesc_feature *feature;\n");
void visit_pre (const tdesc_feature *e) override
{
- printf_unfiltered ("\n feature = tdesc_create_feature (result, \"%s\");\n",
+ printf_unfiltered ("\n feature = tdesc_create_feature (result.get (), \"%s\");\n",
e->name.c_str ());
}
void visit_post (const target_desc *e) override
{
- printf_unfiltered ("\n tdesc_%s = result;\n", m_function);
+ printf_unfiltered ("\n tdesc_%s = result.release ();\n", m_function);
printf_unfiltered ("}\n");
}
m_printed_type_with_fields = true;
}
- if (!type->fields.empty ()
- && !m_printed_field_type)
- {
- printf_unfiltered (" tdesc_type *field_type;\n");
- m_printed_field_type = true;
- }
-
switch (type->kind)
{
case TDESC_TYPE_STRUCT:
}
else
{
- printf_unfiltered
- (" field_type = tdesc_named_type (feature, \"%s\");\n",
+ printf_field_type_assignment
+ ("tdesc_named_type (feature, \"%s\");\n",
type_name);
printf_unfiltered
(" tdesc_add_typed_bitfield (type_with_fields, \"%s\","
{
gdb_assert (f.end == -1);
gdb_assert (type->kind == TDESC_TYPE_STRUCT);
- printf_unfiltered
- (" field_type = tdesc_named_type (feature,"
- " \"%s\");\n",
- type_name);
+ printf_field_type_assignment
+ ("tdesc_named_type (feature, \"%s\");\n", type_name);
printf_unfiltered
(" tdesc_add_field (type_with_fields, \"%s\", field_type);\n",
f.name.c_str ());
type->name.c_str ());
for (const tdesc_type_field &f : type->fields)
{
- printf_unfiltered
- (" field_type = tdesc_named_type (feature, \"%s\");\n",
- f.type->name.c_str ());
+ printf_field_type_assignment
+ ("tdesc_named_type (feature, \"%s\");\n", f.type->name.c_str ());
printf_unfiltered
(" tdesc_add_field (type_with_fields, \"%s\", field_type);\n",
f.name.c_str ());
std::string m_filename_after_features;
private:
+
+ /* Print an assignment to the field_type variable. Print the declaration
+ of field_type if that has not been done yet. */
+ ATTRIBUTE_PRINTF (2, 3)
+ void printf_field_type_assignment (const char *fmt, ...)
+ {
+ if (!m_printed_field_type)
+ {
+ printf_unfiltered (" tdesc_type *field_type;\n");
+ m_printed_field_type = true;
+ }
+
+ printf_unfiltered (" field_type = ");
+
+ va_list args;
+ va_start (args, fmt);
+ vprintf_unfiltered (fmt, args);
+ va_end (args);
+ }
+
char *m_function;
/* Did we print "struct tdesc_type *element_type;" yet? */
printf_unfiltered (" Original: %s */\n\n",
lbasename (m_filename_after_features.c_str ()));
- printf_unfiltered ("#include \"arch/tdesc.h\"\n");
+ printf_unfiltered ("#include \"gdbsupport/tdesc.h\"\n");
printf_unfiltered ("\n");
}
printf_unfiltered (" struct tdesc_feature *feature;\n");
printf_unfiltered
- ("\n feature = tdesc_create_feature (result, \"%s\", \"%s\");\n",
- e->name.c_str (), lbasename (m_filename_after_features.c_str ()));
+ ("\n feature = tdesc_create_feature (result, \"%s\");\n",
+ e->name.c_str ());
}
void visit_post (const tdesc_feature *e) override
int m_next_regnum = 0;
};
+/* See gdbsupport/tdesc.h. */
+
+const char *
+tdesc_get_features_xml (const target_desc *tdesc)
+{
+ if (tdesc->xmltarget == nullptr)
+ {
+ std::string buffer ("@");
+ print_xml_feature v (&buffer);
+ tdesc->accept (v);
+ tdesc->xmltarget = xstrdup (buffer.c_str ());
+ }
+ return tdesc->xmltarget;
+}
+
+/* Data structures and functions to setup the option flags for 'maintenance
+ print c-tdesc command. */
+
+struct maint_print_c_tdesc_options
+{
+ /* True when the '-single-feature' flag was passed. */
+ bool single_feature = false;
+};
+
+using maint_print_c_tdesc_opt_def
+ = gdb::option::flag_option_def<maint_print_c_tdesc_options>;
+
+static const gdb::option::option_def maint_print_c_tdesc_opt_defs[] = {
+ maint_print_c_tdesc_opt_def {
+ "single-feature",
+ [] (maint_print_c_tdesc_options *opt) { return &opt->single_feature; },
+ N_("Print C description of just a single feature.")
+ },
+};
+
+static inline gdb::option::option_def_group
+make_maint_print_c_tdesc_options_def_group (maint_print_c_tdesc_options *opts)
+{
+ return {{maint_print_c_tdesc_opt_defs}, opts};
+}
+
+/* Implement 'maintenance print c-tdesc' command. */
+
static void
maint_print_c_tdesc_cmd (const char *args, int from_tty)
{
const struct target_desc *tdesc;
const char *filename;
+ maint_print_c_tdesc_options opts;
+ auto grp = make_maint_print_c_tdesc_options_def_group (&opts);
+ gdb::option::process_options
+ (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_ERROR, grp);
+
if (args == NULL)
{
/* Use the global target-supplied description, not the current
architecture's. This lets a GDB for one architecture generate C
for another architecture's description, even though the gdbarch
initialization code will reject the new description. */
- tdesc = current_target_desc;
- filename = target_description_filename;
+ target_desc_info *tdesc_info = get_tdesc_info (current_inferior ());
+ tdesc = tdesc_info->tdesc;
+ filename = tdesc_info->filename.data ();
}
else
{
error (_("There is no target description to print."));
if (filename == NULL)
- error (_("The current target description did not come from an XML file."));
+ filename = "fetched from target";
std::string filename_after_features (filename);
auto loc = filename_after_features.rfind ("/features/");
/* Print c files for target features instead of target descriptions,
because c files got from target features are more flexible than the
counterparts. */
- if (startswith (filename_after_features.c_str (), "i386/32bit-")
- || startswith (filename_after_features.c_str (), "i386/64bit-")
- || startswith (filename_after_features.c_str (), "i386/x32-core.xml")
- || startswith (filename_after_features.c_str (), "tic6x-")
- || startswith (filename_after_features.c_str (), "aarch64"))
+ if (opts.single_feature)
{
+ if (tdesc->features.size () != 1)
+ error (_("only target descriptions with 1 feature can be used "
+ "with -single-feature option"));
+
print_c_feature v (filename_after_features);
tdesc->accept (v);
}
}
+/* Completer for the "backtrace" command. */
+
+static void
+maint_print_c_tdesc_cmd_completer (struct cmd_list_element *ignore,
+ completion_tracker &tracker,
+ const char *text, const char *word)
+{
+ auto grp = make_maint_print_c_tdesc_options_def_group (nullptr);
+ if (gdb::option::complete_options
+ (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_ERROR, grp))
+ return;
+
+ word = advance_to_filename_complete_word_point (tracker, text);
+ filename_completer (ignore, tracker, text, word);
+}
+
+/* Implement the maintenance print xml-tdesc command. */
+
+static void
+maint_print_xml_tdesc_cmd (const char *args, int from_tty)
+{
+ const struct target_desc *tdesc;
+
+ if (args == NULL)
+ {
+ /* Use the global target-supplied description, not the current
+ architecture's. This lets a GDB for one architecture generate XML
+ for another architecture's description, even though the gdbarch
+ initialization code will reject the new description. */
+ tdesc = get_tdesc_info (current_inferior ())->tdesc;
+ }
+ else
+ {
+ /* Use the target description from the XML file. */
+ tdesc = file_read_description_xml (args);
+ }
+
+ if (tdesc == NULL)
+ error (_("There is no target description to print."));
+
+ std::string buf;
+ print_xml_feature v (&buf);
+ tdesc->accept (v);
+ puts_unfiltered (buf.c_str ());
+}
+
namespace selftests {
-static std::vector<std::pair<const char*, const target_desc *>> xml_tdesc;
+/* A reference target description, used for testing (see record_xml_tdesc). */
+
+struct xml_test_tdesc
+{
+ xml_test_tdesc (const char *name, std::unique_ptr<const target_desc> &&tdesc)
+ : name (name), tdesc (std::move (tdesc))
+ {}
+
+ const char *name;
+ std::unique_ptr<const target_desc> tdesc;
+};
+
+static std::vector<xml_test_tdesc> xml_tdesc;
#if GDB_SELF_TEST
-/* See target-descritpions.h. */
+/* See target-descriptions.h. */
void
record_xml_tdesc (const char *xml_file, const struct target_desc *tdesc)
{
- xml_tdesc.emplace_back (xml_file, tdesc);
+ xml_tdesc.emplace_back (xml_file, std::unique_ptr<const target_desc> (tdesc));
}
#endif
}
+/* Test the conversion process of a target description to/from xml: Take a target
+ description TDESC, convert to xml, back to a description, and confirm the new
+ tdesc is identical to the original. */
+static bool
+maintenance_check_tdesc_xml_convert (const target_desc *tdesc, const char *name)
+{
+ const char *xml = tdesc_get_features_xml (tdesc);
+
+ if (xml == nullptr || *xml != '@')
+ {
+ printf_filtered (_("Could not convert description for %s to xml.\n"),
+ name);
+ return false;
+ }
+
+ const target_desc *tdesc_trans = string_read_description_xml (xml + 1);
+
+ if (tdesc_trans == nullptr)
+ {
+ printf_filtered (_("Could not convert description for %s from xml.\n"),
+ name);
+ return false;
+ }
+ else if (*tdesc != *tdesc_trans)
+ {
+ printf_filtered (_("Converted description for %s does not match.\n"),
+ name);
+ return false;
+ }
+ return true;
+}
+
+
/* Check that the target descriptions created dynamically by
architecture-specific code equal the descriptions created from XML files
found in the specified directory DIR. */
for (auto const &e : selftests::xml_tdesc)
{
- std::string tdesc_xml = (feature_dir + SLASH_STRING + e.first);
+ std::string tdesc_xml = (feature_dir + SLASH_STRING + e.name);
const target_desc *tdesc
= file_read_description_xml (tdesc_xml.data ());
- if (tdesc == NULL || *tdesc != *e.second)
+ if (tdesc == NULL || *tdesc != *e.tdesc)
+ {
+ printf_filtered ( _("Descriptions for %s do not match.\n"), e.name);
+ failed++;
+ }
+ else if (!maintenance_check_tdesc_xml_convert (tdesc, e.name)
+ || !maintenance_check_tdesc_xml_convert (e.tdesc.get (), e.name))
failed++;
}
printf_filtered (_("Tested %lu XML files, %d failed\n"),
(long) selftests::xml_tdesc.size (), failed);
}
+void _initialize_target_descriptions ();
void
-_initialize_target_descriptions (void)
+_initialize_target_descriptions ()
{
+ cmd_list_element *cmd;
+
tdesc_data = gdbarch_data_register_pre_init (tdesc_data_init);
- add_prefix_cmd ("tdesc", class_maintenance, set_tdesc_cmd, _("\
+ add_basic_prefix_cmd ("tdesc", class_maintenance, _("\
Set target description specific variables."),
- &tdesc_set_cmdlist, "set tdesc ",
- 0 /* allow-unknown */, &setlist);
- add_prefix_cmd ("tdesc", class_maintenance, show_tdesc_cmd, _("\
+ &tdesc_set_cmdlist,
+ 0 /* allow-unknown */, &setlist);
+ add_show_prefix_cmd ("tdesc", class_maintenance, _("\
Show target description specific variables."),
- &tdesc_show_cmdlist, "show tdesc ",
- 0 /* allow-unknown */, &showlist);
- add_prefix_cmd ("tdesc", class_maintenance, unset_tdesc_cmd, _("\
+ &tdesc_show_cmdlist,
+ 0 /* allow-unknown */, &showlist);
+ add_basic_prefix_cmd ("tdesc", class_maintenance, _("\
Unset target description specific variables."),
- &tdesc_unset_cmdlist, "unset tdesc ",
- 0 /* allow-unknown */, &unsetlist);
+ &tdesc_unset_cmdlist,
+ 0 /* allow-unknown */, &unsetlist);
add_setshow_filename_cmd ("filename", class_obscure,
&tdesc_filename_cmd_string,
_("\
-Set the file to read for an XML target description"), _("\
-Show the file to read for an XML target description"), _("\
+Set the file to read for an XML target description."), _("\
+Show the file to read for an XML target description."), _("\
When set, GDB will read the target description from a local\n\
file instead of querying the remote target."),
set_tdesc_filename_cmd,
&tdesc_set_cmdlist, &tdesc_show_cmdlist);
add_cmd ("filename", class_obscure, unset_tdesc_filename_cmd, _("\
-Unset the file to read for an XML target description. When unset,\n\
-GDB will read the description from the target."),
+Unset the file to read for an XML target description.\n\
+When unset, GDB will read the description from the target."),
&tdesc_unset_cmdlist);
- add_cmd ("c-tdesc", class_maintenance, maint_print_c_tdesc_cmd, _("\
-Print the current target description as a C source file."),
- &maintenanceprintlist);
-
- cmd_list_element *cmd;
+ auto grp = make_maint_print_c_tdesc_options_def_group (nullptr);
+ static std::string help_text
+ = gdb::option::build_help (_("\
+Print the current target description as a C source file.\n\
+Usage: maintenance print c-tdesc [OPTION] [FILENAME]\n\
+\n\
+Options:\n\
+%OPTIONS%\n\
+\n\
+When FILENAME is not provided then print the current target\n\
+description, otherwise an XML target description is read from\n\
+FILENAME and printed as a C function.\n\
+\n\
+When '-single-feature' is used then the target description should\n\
+contain a single feature and the generated C code will only create\n\
+that feature within an already existing target_desc object."), grp);
+ cmd = add_cmd ("c-tdesc", class_maintenance, maint_print_c_tdesc_cmd,
+ help_text.c_str (), &maintenanceprintlist);
+ set_cmd_completer_handle_brkchars (cmd, maint_print_c_tdesc_cmd_completer);
+
+ cmd = add_cmd ("xml-tdesc", class_maintenance, maint_print_xml_tdesc_cmd, _("\
+Print the current target description as an XML file."),
+ &maintenanceprintlist);
+ set_cmd_completer (cmd, filename_completer);
cmd = add_cmd ("xml-descriptions", class_maintenance,
maintenance_check_xml_descriptions, _("\
+Check equality of GDB target descriptions and XML created descriptions.\n\
Check the target descriptions created in GDB equal the descriptions\n\
created from XML files in the directory.\n\
The parameter is the directory name."),
projects / thirdparty / binutils-gdb.git / blobdiff