/* Target description support for GDB.
- Copyright (C) 2006-2017 Free Software Foundation, Inc.
+ Copyright (C) 2006-2018 Free Software Foundation, Inc.
Contributed by CodeSourcery.
#include "completer.h"
#include "readline/tilde.h" /* tilde_expand */
+static type *make_gdb_type (struct gdbarch *gdbarch, struct tdesc_type *ttype);
+
/* 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 target_desc *e)
+ {}
+
+ virtual void visit_post (const target_desc *e)
+ {}
+
+ virtual void visit_pre (const tdesc_feature *e)
+ {}
+
+ virtual void visit_post (const tdesc_feature *e)
+ {}
+
+ virtual void visit (const tdesc_type_builtin *e)
+ {}
- virtual void visit_pre (const tdesc_feature *e) = 0;
- virtual void visit_post (const tdesc_feature *e) = 0;
+ virtual void visit (const tdesc_type_vector *e)
+ {}
- virtual void visit (const tdesc_type *e) = 0;
- virtual void visit (const tdesc_reg *e) = 0;
+ virtual void visit (const tdesc_type_with_fields *e)
+ {}
+
+ virtual void visit (const tdesc_reg *e)
+ {}
};
class tdesc_element
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). */
+ if the group should be automatically determined from the register's
+ type. This is traditionally "general", "float", "vector" but can
+ also be an arbitrary string. If defined the corresponding "info"
+ command should display this register's value. The string should be
+ limited to alphanumeric characters and internal hyphens. */
std::string group;
/* The size of the register, in bits. */
{
tdesc_type (const std::string &name_, enum tdesc_type_kind kind_)
: name (name_), kind (kind_)
- {
- memset (&u, 0, sizeof (u));
-
- switch (kind)
- {
- case TDESC_TYPE_STRUCT:
- case TDESC_TYPE_UNION:
- case TDESC_TYPE_FLAGS:
- case TDESC_TYPE_ENUM:
- u.u.fields = new std::vector<tdesc_type_field> ();
- break;
-
- default:
- break;
- }
- }
-
- virtual ~tdesc_type ()
- {
- switch (kind)
- {
- case TDESC_TYPE_STRUCT:
- case TDESC_TYPE_UNION:
- case TDESC_TYPE_FLAGS:
- case TDESC_TYPE_ENUM:
- delete u.u.fields;
- break;
+ {}
- default:
- break;
- }
- }
+ virtual ~tdesc_type () = default;
DISABLE_COPY_AND_ASSIGN (tdesc_type);
/* Identify the kind of this type. */
enum tdesc_type_kind kind;
- /* Kind-specific data. */
- union
+ bool operator== (const tdesc_type &other) const
{
- /* Vector type. */
- struct
- {
- struct tdesc_type *type;
- int count;
- } v;
+ return name == other.name && kind == other.kind;
+ }
- /* Struct, union, flags, or enum type. */
- struct
- {
- std::vector<tdesc_type_field> *fields;
- int size;
- } u;
- } u;
+ bool operator!= (const tdesc_type &other) const
+ {
+ return !(*this == other);
+ }
+};
+
+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);
}
+};
- bool operator== (const tdesc_type &other) const
+/* 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
{
- return name == other.name && kind == other.kind;
+ v.visit (this);
}
- bool operator!= (const tdesc_type &other) const
+ struct tdesc_type *element_type;
+ int count;
+};
+
+/* tdesc_type for struct, union, flags, and enum types. */
+
+struct tdesc_type_with_fields : tdesc_type
+{
+ 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
{
- return !(*this == other);
+ v.visit (this);
}
+
+ std::vector<tdesc_type_field> fields;
+ int size;
};
-typedef std::unique_ptr<tdesc_type> tdesc_type_up;
+/* Convert a tdesc_type to a gdb type. */
+
+static type *
+make_gdb_type (struct gdbarch *gdbarch, struct tdesc_type *ttype)
+{
+ class gdb_type_creator : public tdesc_element_visitor
+ {
+ public:
+ gdb_type_creator (struct gdbarch *gdbarch)
+ : m_gdbarch (gdbarch)
+ {}
+
+ type *get_type ()
+ {
+ return m_type;
+ }
+
+ 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;
+ }
+
+ m_type = tdesc_find_type (m_gdbarch, e->name.c_str ());
+ if (m_type != NULL)
+ return;
+
+ switch (e->kind)
+ {
+ 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;
+ }
+
+ internal_error (__FILE__, __LINE__,
+ "Type \"%s\" has an unknown kind %d",
+ e->name.c_str (), e->kind);
+ }
+
+ void visit (const tdesc_type_vector *e) override
+ {
+ 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);
+ TYPE_NAME (m_type) = xstrdup (e->name.c_str ());
+ return;
+ }
+
+ 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;
+
+ 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;
+ }
+
+ internal_error (__FILE__, __LINE__,
+ "Type \"%s\" has an unknown kind %d",
+ e->name.c_str (), e->kind);
+ }
+
+ private:
+
+ void make_gdb_type_struct (const tdesc_type_with_fields *e)
+ {
+ m_type = arch_composite_type (m_gdbarch, NULL, TYPE_CODE_STRUCT);
+ TYPE_NAME (m_type) = xstrdup (e->name.c_str ());
+ TYPE_TAG_NAME (m_type) = TYPE_NAME (m_type);
+
+ 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_bits_big_endian (m_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 = make_gdb_type (m_gdbarch, f.type);
+ append_composite_type_field (m_type,
+ xstrdup (f.name.c_str ()),
+ field_gdb_type);
+ }
+ }
+
+ if (e->size != 0)
+ TYPE_LENGTH (m_type) = e->size;
+ }
+
+ void make_gdb_type_union (const tdesc_type_with_fields *e)
+ {
+ m_type = arch_composite_type (m_gdbarch, NULL, TYPE_CODE_UNION);
+ TYPE_NAME (m_type) = xstrdup (e->name.c_str ());
+
+ 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 (TYPE_VECTOR (field_gdb_type))
+ TYPE_VECTOR (m_type) = 1;
+ }
+ }
+
+ 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);
+
+ for (const tdesc_type_field &f : e->fields)
+ {
+ int bitsize = f.end - f.start + 1;
+
+ 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 ());
+ }
+ }
+
+ 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 ());
+
+ TYPE_UNSIGNED (m_type) = 1;
+ for (const tdesc_type_field &f : e->fields)
+ {
+ struct field *fld
+ = append_composite_type_field_raw (m_type,
+ xstrdup (f.name.c_str ()),
+ NULL);
+
+ SET_FIELD_BITPOS (fld[0], f.start);
+ }
+ }
+
+ /* The gdbarch used. */
+ struct gdbarch *m_gdbarch;
+
+ /* The type created. */
+ type *m_type;
+ };
+
+ gdb_type_creator gdb_type (gdbarch);
+ ttype->accept (gdb_type);
+ return gdb_type.get_type ();
+}
/* A feature from a target description. Each feature is a collection
of other elements, e.g. registers and types. */
std::string name;
/* The registers associated with this feature. */
- std::vector<std::unique_ptr<tdesc_reg>> registers;
+ std::vector<tdesc_reg_up> registers;
/* The types associated with this feature. */
std::vector<tdesc_type_up> types;
std::vector<property> properties;
/* The features associated with this target. */
- std::vector<std::unique_ptr<tdesc_feature>> features;
+ std::vector<tdesc_feature_up> features;
void accept (tdesc_element_visitor &v) const override
{
target description may be shared by multiple architectures, but
this data is private to one gdbarch. */
-typedef struct tdesc_arch_reg
+struct tdesc_arch_reg
{
+ tdesc_arch_reg (tdesc_reg *reg_, struct type *type_)
+ : reg (reg_), type (type_)
+ {}
+
struct tdesc_reg *reg;
struct type *type;
-} tdesc_arch_reg;
-DEF_VEC_O(tdesc_arch_reg);
+};
struct tdesc_arch_data
{
Registers which are NULL in this array, or off the end, are
treated as zero-sized and nameless (i.e. placeholders in the
numbering). */
- VEC(tdesc_arch_reg) *arch_regs;
+ std::vector<tdesc_arch_reg> arch_regs;
/* Functions which report the register name, type, and reggroups for
pseudo-registers. */
- gdbarch_register_name_ftype *pseudo_register_name;
- gdbarch_register_type_ftype *pseudo_register_type;
- gdbarch_register_reggroup_p_ftype *pseudo_register_reggroup_p;
+ gdbarch_register_name_ftype *pseudo_register_name = NULL;
+ gdbarch_register_type_ftype *pseudo_register_type = NULL;
+ gdbarch_register_reggroup_p_ftype *pseudo_register_reggroup_p = NULL;
};
/* Info about an inferior's target description. There's one of these
data = ((struct tdesc_arch_data *)
gdbarch_data (target_gdbarch (), tdesc_data));
if (tdesc_has_registers (current_target_desc)
- && data->arch_regs == NULL)
+ && data->arch_regs.empty ())
warning (_("Target-supplied registers are not supported "
"by the current architecture"));
}
}
/* Predefined types. */
-static struct tdesc_type tdesc_predefined_types[] =
+static tdesc_type_builtin tdesc_predefined_types[] =
{
{ "bool", TDESC_TYPE_BOOL },
{ "int8", TDESC_TYPE_INT8 },
gdb_assert_not_reached ("bad predefined tdesc type");
}
-/* See arch/tdesc.h. */
+/* See common/tdesc.h. */
struct tdesc_type *
tdesc_named_type (const struct tdesc_feature *feature, const char *id)
struct type *
tdesc_find_type (struct gdbarch *gdbarch, const char *id)
{
- struct tdesc_arch_reg *reg;
- struct tdesc_arch_data *data;
- int i, num_regs;
+ tdesc_arch_data *data
+ = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data);
- data = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data);
- num_regs = VEC_length (tdesc_arch_reg, data->arch_regs);
- for (i = 0; i < num_regs; i++)
+ for (const tdesc_arch_reg ® : data->arch_regs)
{
- reg = VEC_index (tdesc_arch_reg, data->arch_regs, i);
- if (reg->reg
- && reg->reg->tdesc_type
- && reg->type
- && reg->reg->tdesc_type->name == id)
- return reg->type;
+ if (reg.reg
+ && reg.reg->tdesc_type
+ && reg.type
+ && reg.reg->tdesc_type->name == id)
+ return reg.type;
}
return NULL;
}
-/* Construct, if necessary, and return the GDB type implementing target
- type TDESC_TYPE for architecture GDBARCH. */
-
-static struct type *
-tdesc_gdb_type (struct gdbarch *gdbarch, struct tdesc_type *tdesc_type)
-{
- struct type *type;
-
- switch (tdesc_type->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;
-
- default:
- break;
- }
-
- type = tdesc_find_type (gdbarch, tdesc_type->name.c_str ());
- if (type)
- return type;
-
- switch (tdesc_type->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);
-
- /* Types defined by a target feature. */
- case TDESC_TYPE_VECTOR:
- {
- struct type *type, *field_type;
-
- field_type = tdesc_gdb_type (gdbarch, tdesc_type->u.v.type);
- type = init_vector_type (field_type, tdesc_type->u.v.count);
- TYPE_NAME (type) = xstrdup (tdesc_type->name.c_str ());
-
- return type;
- }
-
- case TDESC_TYPE_STRUCT:
- {
- struct type *type, *field_type;
-
- type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
- TYPE_NAME (type) = xstrdup (tdesc_type->name.c_str ());
- TYPE_TAG_NAME (type) = TYPE_NAME (type);
-
- for (const tdesc_type_field &f : *tdesc_type->u.u.fields)
- {
- if (f.start != -1 && f.end != -1)
- {
- /* Bitfield. */
- struct field *fld;
- struct type *field_type;
- int bitsize, total_size;
-
- /* This invariant should be preserved while creating types. */
- gdb_assert (tdesc_type->u.u.size != 0);
- if (f.type != NULL)
- field_type = tdesc_gdb_type (gdbarch, f.type);
- else if (tdesc_type->u.u.size > 4)
- field_type = builtin_type (gdbarch)->builtin_uint64;
- else
- field_type = builtin_type (gdbarch)->builtin_uint32;
-
- fld = append_composite_type_field_raw
- (type, xstrdup (f.name.c_str ()), field_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 = tdesc_type->u.u.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);
- field_type = tdesc_gdb_type (gdbarch, f.type);
- append_composite_type_field (type, xstrdup (f.name.c_str ()),
- field_type);
- }
- }
-
- if (tdesc_type->u.u.size != 0)
- TYPE_LENGTH (type) = tdesc_type->u.u.size;
- return type;
- }
-
- case TDESC_TYPE_UNION:
- {
- struct type *type, *field_type;
-
- type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION);
- TYPE_NAME (type) = xstrdup (tdesc_type->name.c_str ());
-
- for (const tdesc_type_field &f : *tdesc_type->u.u.fields)
- {
- field_type = tdesc_gdb_type (gdbarch, f.type);
- append_composite_type_field (type, xstrdup (f.name.c_str ()),
- field_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_type))
- TYPE_VECTOR (type) = 1;
- }
- return type;
- }
-
- case TDESC_TYPE_FLAGS:
- {
- type = arch_flags_type (gdbarch, tdesc_type->name.c_str (),
- tdesc_type->u.u.size * TARGET_CHAR_BIT);
- for (const tdesc_type_field &f : *tdesc_type->u.u.fields)
- {
- struct type *field_type;
- int bitsize = f.end - f.start + 1;
-
- gdb_assert (f.type != NULL);
- field_type = tdesc_gdb_type (gdbarch, f.type);
- append_flags_type_field (type, f.start, bitsize,
- field_type, f.name.c_str ());
- }
-
- return type;
- }
-
- case TDESC_TYPE_ENUM:
- {
- type = arch_type (gdbarch, TYPE_CODE_ENUM,
- tdesc_type->u.u.size * TARGET_CHAR_BIT,
- tdesc_type->name.c_str ());
- TYPE_UNSIGNED (type) = 1;
- for (const tdesc_type_field &f : *tdesc_type->u.u.fields)
- {
- struct field *fld
- = append_composite_type_field_raw (type,
- xstrdup (f.name.c_str ()),
- NULL);
-
- SET_FIELD_BITPOS (fld[0], f.start);
- }
-
- return type;
- }
- }
-
- internal_error (__FILE__, __LINE__,
- "Type \"%s\" has an unknown kind %d",
- tdesc_type->name.c_str (), tdesc_type->kind);
-}
-\f
-
/* Support for registers from target descriptions. */
/* Construct the per-gdbarch data. */
struct tdesc_arch_data *data;
data = OBSTACK_ZALLOC (obstack, struct tdesc_arch_data);
+ new (data) tdesc_arch_data ();
+
return data;
}
struct tdesc_arch_data *
tdesc_data_alloc (void)
{
- return XCNEW (struct tdesc_arch_data);
+ return new tdesc_arch_data ();
}
/* Free something allocated by tdesc_data_alloc, if it is not going
{
struct tdesc_arch_data *data = (struct tdesc_arch_data *) data_untyped;
- VEC_free (tdesc_arch_reg, data->arch_regs);
- xfree (data);
+ delete data;
}
/* Search FEATURE for a register named NAME. */
struct tdesc_arch_data *data,
int regno, const char *name)
{
- struct tdesc_arch_reg arch_reg = { 0 };
struct tdesc_reg *reg = tdesc_find_register_early (feature, name);
if (reg == NULL)
return 0;
/* Make sure the vector includes a REGNO'th element. */
- while (regno >= VEC_length (tdesc_arch_reg, data->arch_regs))
- VEC_safe_push (tdesc_arch_reg, data->arch_regs, &arch_reg);
+ while (regno >= data->arch_regs.size ())
+ data->arch_regs.emplace_back (nullptr, nullptr);
+
+ data->arch_regs[regno] = tdesc_arch_reg (reg, NULL);
- arch_reg.reg = reg;
- VEC_replace (tdesc_arch_reg, data->arch_regs, regno, &arch_reg);
return 1;
}
struct tdesc_arch_data *data;
data = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data);
- if (regno < VEC_length (tdesc_arch_reg, data->arch_regs))
- return VEC_index (tdesc_arch_reg, data->arch_regs, regno);
+ if (regno < data->arch_regs.size ())
+ return &data->arch_regs[regno];
else
return NULL;
}
{
/* First check for a predefined or target defined type. */
if (reg->tdesc_type)
- arch_reg->type = tdesc_gdb_type (gdbarch, reg->tdesc_type);
+ 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))
{
int num_regs = gdbarch_num_regs (gdbarch);
struct tdesc_arch_data *data;
- struct tdesc_arch_reg *arch_reg, new_arch_reg = { 0 };
htab_t reg_hash;
/* We can't use the description for registers if it doesn't describe
data = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data);
data->arch_regs = early_data->arch_regs;
- xfree (early_data);
+ delete early_data;
/* Build up a set of all registers, so that we can assign register
numbers where needed. The hash table expands as necessary, so
void **slot = htab_find_slot (reg_hash, 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 (int ixr = 0;
- VEC_iterate (tdesc_arch_reg, data->arch_regs, ixr, arch_reg);
- ixr++)
- if (arch_reg->reg)
- htab_remove_elt (reg_hash, arch_reg->reg);
+ for (const tdesc_arch_reg &arch_reg : data->arch_regs)
+ if (arch_reg.reg != NULL)
+ htab_remove_elt (reg_hash, 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.
Iterate over the features, not the hash table, so that the order
matches that in the target description. */
- gdb_assert (VEC_length (tdesc_arch_reg, data->arch_regs) <= num_regs);
- while (VEC_length (tdesc_arch_reg, data->arch_regs) < num_regs)
- VEC_safe_push (tdesc_arch_reg, data->arch_regs, &new_arch_reg);
+ gdb_assert (data->arch_regs.size () <= num_regs);
+ while (data->arch_regs.size () < num_regs)
+ data->arch_regs.emplace_back (nullptr, nullptr);
+
for (const tdesc_feature_up &feature : target_desc->features)
for (const tdesc_reg_up ® : feature->registers)
if (htab_find (reg_hash, reg.get ()) != NULL)
{
- new_arch_reg.reg = reg.get ();
- VEC_safe_push (tdesc_arch_reg, data->arch_regs, &new_arch_reg);
+ data->arch_regs.emplace_back (reg.get (), nullptr);
num_regs++;
}
}
\f
-/* See arch/tdesc.h. */
+/* See common/tdesc.h. */
void
tdesc_create_reg (struct tdesc_feature *feature, const char *name,
feature->registers.emplace_back (reg);
}
-/* See arch/tdesc.h. */
+/* See common/tdesc.h. */
struct tdesc_type *
tdesc_create_vector (struct tdesc_feature *feature, const char *name,
struct tdesc_type *field_type, int count)
{
- struct tdesc_type *type = new tdesc_type (name, TDESC_TYPE_VECTOR);
-
- type->u.v.type = field_type;
- type->u.v.count = count;
-
+ tdesc_type_vector *type = new tdesc_type_vector (name, field_type, count);
feature->types.emplace_back (type);
+
return type;
}
-/* See arch/tdesc.h. */
+/* See common/tdesc.h. */
-struct tdesc_type *
+tdesc_type_with_fields *
tdesc_create_struct (struct tdesc_feature *feature, const char *name)
{
- struct tdesc_type *type = new tdesc_type (name, TDESC_TYPE_STRUCT);
-
+ 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. */
+/* See common/tdesc.h. */
void
-tdesc_set_struct_size (struct tdesc_type *type, int size)
+tdesc_set_struct_size (tdesc_type_with_fields *type, int size)
{
gdb_assert (type->kind == TDESC_TYPE_STRUCT);
gdb_assert (size > 0);
- type->u.u.size = size;
+ type->size = size;
}
-/* See arch/tdesc.h. */
+/* See common/tdesc.h. */
-struct tdesc_type *
+tdesc_type_with_fields *
tdesc_create_union (struct tdesc_feature *feature, const char *name)
{
- struct tdesc_type *type = new tdesc_type (name, TDESC_TYPE_UNION);
-
+ 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. */
+/* See common/tdesc.h. */
-struct tdesc_type *
+tdesc_type_with_fields *
tdesc_create_flags (struct tdesc_feature *feature, const char *name,
int size)
{
- struct tdesc_type *type = new tdesc_type (name, TDESC_TYPE_FLAGS);
-
gdb_assert (size > 0);
- type->u.u.size = size;
-
+ tdesc_type_with_fields *type
+ = new tdesc_type_with_fields (name, TDESC_TYPE_FLAGS, size);
feature->types.emplace_back (type);
+
return type;
}
-struct tdesc_type *
+tdesc_type_with_fields *
tdesc_create_enum (struct tdesc_feature *feature, const char *name,
int size)
{
- struct tdesc_type *type = new tdesc_type (name, TDESC_TYPE_ENUM);
-
gdb_assert (size > 0);
- type->u.u.size = size;
-
+ 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. */
+/* See common/tdesc.h. */
void
-tdesc_add_field (struct tdesc_type *type, const char *field_name,
+tdesc_add_field (tdesc_type_with_fields *type, const char *field_name,
struct tdesc_type *field_type)
{
gdb_assert (type->kind == TDESC_TYPE_UNION
/* Initialize start and end so we know this is not a bit-field
when we print-c-tdesc. */
- type->u.u.fields->emplace_back (field_name, field_type, -1, -1);
+ type->fields.emplace_back (field_name, field_type, -1, -1);
}
void
-tdesc_add_typed_bitfield (struct tdesc_type *type, const char *field_name,
+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->u.u.fields->emplace_back (field_name, field_type, start, end);
+ type->fields.emplace_back (field_name, field_type, start, end);
}
-/* See arch/tdesc.h. */
+/* See common/tdesc.h. */
void
-tdesc_add_bitfield (struct tdesc_type *type, const char *field_name,
+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->u.u.size > 4)
+ 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. */
+/* See common/tdesc.h. */
void
-tdesc_add_flag (struct tdesc_type *type, int start,
+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->u.u.fields->emplace_back (flag_name,
- tdesc_predefined_type (TDESC_TYPE_BOOL),
- start, start);
+ type->fields.emplace_back (flag_name,
+ tdesc_predefined_type (TDESC_TYPE_BOOL),
+ start, start);
}
void
-tdesc_add_enum_value (struct tdesc_type *type, int value,
+tdesc_add_enum_value (tdesc_type_with_fields *type, int value,
const char *name)
{
gdb_assert (type->kind == TDESC_TYPE_ENUM);
-
- type->u.u.fields->emplace_back (name,
- tdesc_predefined_type (TDESC_TYPE_INT32),
- value, -1);
+ type->fields.emplace_back (name,
+ tdesc_predefined_type (TDESC_TYPE_INT32),
+ value, -1);
}
-/* See arch/tdesc.h. */
+/* See common/tdesc.h. */
struct tdesc_feature *
tdesc_create_feature (struct target_desc *tdesc, const char *name,
target_desc->properties.emplace_back (key, value);
}
-/* See arch/tdesc.h. */
+/* See common/tdesc.h. */
void
set_tdesc_architecture (struct target_desc *target_desc,
target_desc->arch = arch;
}
-/* See arch/tdesc.h. */
+/* See common/tdesc.h. */
void
set_tdesc_osabi (struct target_desc *target_desc, const char *name)
printf_unfiltered ("\n");
}
- for (const struct bfd_arch_info *compatible : e->compatible)
+ for (const bfd_arch_info_type *compatible : e->compatible)
printf_unfiltered
(" tdesc_add_compatible (result, bfd_scan_arch (\"%s\"));\n",
compatible->printable_name);
printf_unfiltered ("}\n");
}
- void visit (const tdesc_type *type) override
+ void visit (const tdesc_type_builtin *type) override
{
- /* Now we do some "filtering" in order to know which variables to
- declare. This is needed because otherwise we would declare unused
- variables `field_type' and `type'. */
- if (!m_printed_field_type)
+ error (_("C output is not supported type \"%s\"."), type->name.c_str ());
+ }
+
+ void visit (const tdesc_type_vector *type) override
+ {
+ if (!m_printed_element_type)
{
- printf_unfiltered (" struct tdesc_type *field_type;\n");
- m_printed_field_type = true;
+ printf_unfiltered (" tdesc_type *element_type;\n");
+ m_printed_element_type = true;
}
- if ((type->kind == TDESC_TYPE_UNION
- || type->kind == TDESC_TYPE_STRUCT
- || type->kind == TDESC_TYPE_FLAGS
- || type->kind == TDESC_TYPE_ENUM)
- && !type->u.u.fields->empty ()
- && !m_printed_type)
+ printf_unfiltered
+ (" element_type = tdesc_named_type (feature, \"%s\");\n",
+ type->element_type->name.c_str ());
+ printf_unfiltered
+ (" tdesc_create_vector (feature, \"%s\", element_type, %d);\n",
+ type->name.c_str (), type->count);
+
+ printf_unfiltered ("\n");
+ }
+
+ void visit (const tdesc_type_with_fields *type) override
+ {
+ if (!m_printed_type_with_fields)
{
- printf_unfiltered (" struct tdesc_type *type;\n");
- m_printed_type = true;
+ printf_unfiltered (" tdesc_type_with_fields *type_with_fields;\n");
+ m_printed_type_with_fields = true;
}
switch (type->kind)
{
- case TDESC_TYPE_VECTOR:
- printf_unfiltered
- (" field_type = tdesc_named_type (feature, \"%s\");\n",
- type->u.v.type->name.c_str ());
- printf_unfiltered
- (" tdesc_create_vector (feature, \"%s\", field_type, %d);\n",
- type->name.c_str (), type->u.v.count);
- break;
case TDESC_TYPE_STRUCT:
case TDESC_TYPE_FLAGS:
if (type->kind == TDESC_TYPE_STRUCT)
{
printf_unfiltered
- (" type = tdesc_create_struct (feature, \"%s\");\n",
+ (" type_with_fields = tdesc_create_struct (feature, \"%s\");\n",
type->name.c_str ());
- if (type->u.u.size != 0)
+ if (type->size != 0)
printf_unfiltered
- (" tdesc_set_struct_size (type, %d);\n",
- type->u.u.size);
+ (" tdesc_set_struct_size (type_with_fields, %d);\n", type->size);
}
else
{
printf_unfiltered
- (" type = tdesc_create_flags (feature, \"%s\", %d);\n",
- type->name.c_str (), type->u.u.size);
+ (" type_with_fields = tdesc_create_flags (feature, \"%s\", %d);\n",
+ type->name.c_str (), type->size);
}
- for (const tdesc_type_field &f : *type->u.u.fields)
+ for (const tdesc_type_field &f : type->fields)
{
const char *type_name;
{
gdb_assert (f.start == f.end);
printf_unfiltered
- (" tdesc_add_flag (type, %d, \"%s\");\n",
+ (" tdesc_add_flag (type_with_fields, %d, \"%s\");\n",
f.start, f.name.c_str ());
}
- else if ((type->u.u.size == 4
- && f.type->kind == TDESC_TYPE_UINT32)
- || (type->u.u.size == 8
+ else if ((type->size == 4 && f.type->kind == TDESC_TYPE_UINT32)
+ || (type->size == 8
&& f.type->kind == TDESC_TYPE_UINT64))
{
printf_unfiltered
- (" tdesc_add_bitfield (type, \"%s\", %d, %d);\n",
+ (" tdesc_add_bitfield (type_with_fields, \"%s\", %d, %d);\n",
f.name.c_str (), f.start, f.end);
}
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, \"%s\","
+ (" tdesc_add_typed_bitfield (type_with_fields, \"%s\","
" %d, %d, field_type);\n",
f.name.c_str (), f.start, f.end);
}
{
gdb_assert (f.end == -1);
gdb_assert (type->kind == TDESC_TYPE_STRUCT);
+ printf_field_type_assignment
+ ("tdesc_named_type (feature, \"%s\");\n", type_name);
printf_unfiltered
- (" field_type = tdesc_named_type (feature,"
- " \"%s\");\n",
- type_name);
- printf_unfiltered
- (" tdesc_add_field (type, \"%s\", field_type);\n",
+ (" tdesc_add_field (type_with_fields, \"%s\", field_type);\n",
f.name.c_str ());
}
}
break;
case TDESC_TYPE_UNION:
printf_unfiltered
- (" type = tdesc_create_union (feature, \"%s\");\n",
+ (" type_with_fields = tdesc_create_union (feature, \"%s\");\n",
type->name.c_str ());
- for (const tdesc_type_field &f : *type->u.u.fields)
+ for (const tdesc_type_field &f : type->fields)
{
+ printf_field_type_assignment
+ ("tdesc_named_type (feature, \"%s\");\n", f.type->name.c_str ());
printf_unfiltered
- (" field_type = tdesc_named_type (feature, \"%s\");\n",
- f.type->name.c_str ());
- printf_unfiltered
- (" tdesc_add_field (type, \"%s\", field_type);\n",
+ (" tdesc_add_field (type_with_fields, \"%s\", field_type);\n",
f.name.c_str ());
}
break;
case TDESC_TYPE_ENUM:
printf_unfiltered
- (" type = tdesc_create_enum (feature, \"%s\", %d);\n",
- type->name.c_str (), type->u.u.size);
- for (const tdesc_type_field &f : *type->u.u.fields)
+ (" type_with_fields = tdesc_create_enum (feature, \"%s\", %d);\n",
+ type->name.c_str (), type->size);
+ for (const tdesc_type_field &f : type->fields)
printf_unfiltered
- (" tdesc_add_enum_value (type, %d, \"%s\");\n",
+ (" tdesc_add_enum_value (type_with_fields, %d, \"%s\");\n",
f.start, f.name.c_str ());
break;
default:
error (_("C output is not supported type \"%s\"."), type->name.c_str ());
}
+
printf_unfiltered ("\n");
}
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? */
+ bool m_printed_element_type = false;
+
+ /* Did we print "struct tdesc_type_with_fields *element_type;" yet? */
+ bool m_printed_type_with_fields = false;
+
+ /* Did we print "struct tdesc_type *field_type;" yet? */
bool m_printed_field_type = false;
- bool m_printed_type = false;
};
/* Print target description feature in C. */
printf_unfiltered (" Original: %s */\n\n",
lbasename (m_filename_after_features.c_str ()));
- printf_unfiltered ("#include \"arch/tdesc.h\"\n");
+ printf_unfiltered ("#include \"common/tdesc.h\"\n");
printf_unfiltered ("\n");
}