/* DWARF 2 location expression support for GDB.
- Copyright (C) 2003-2015 Free Software Foundation, Inc.
+ Copyright (C) 2003-2020 Free Software Foundation, Inc.
This file is part of GDB.
offset in the parent objfile. */
CORE_ADDR dwarf2_per_cu_text_offset (struct dwarf2_per_cu_data *cu);
+short dwarf2_version (struct dwarf2_per_cu_data *per_cu);
+
/* Find a particular location expression from a location list. */
const gdb_byte *dwarf2_find_location_expression
(struct dwarf2_loclist_baton *baton,
struct dwarf2_locexpr_baton dwarf2_fetch_die_loc_sect_off
(sect_offset offset_in_cu, struct dwarf2_per_cu_data *per_cu,
CORE_ADDR (*get_frame_pc) (void *baton),
- void *baton);
+ void *baton, bool resolve_abstract_p = false);
struct dwarf2_locexpr_baton dwarf2_fetch_die_loc_cu_off
(cu_offset offset_in_cu, struct dwarf2_per_cu_data *per_cu,
struct obstack *,
LONGEST *);
+struct type *dwarf2_fetch_die_type_sect_off (sect_offset,
+ struct dwarf2_per_cu_data *);
+
struct type *dwarf2_get_die_type (cu_offset die_offset,
struct dwarf2_per_cu_data *per_cu);
property. When evaluating a property that is not related to a type, it can
be NULL.
- Returns 1 if PROP could be converted and the static value is passed back
- into VALUE, otherwise returns 0. */
+ Returns true if PROP could be converted and the static value is passed
+ back into VALUE, otherwise returns false. */
-int dwarf2_evaluate_property (const struct dynamic_prop *prop,
- struct frame_info *frame,
- struct property_addr_info *addr_stack,
- CORE_ADDR *value);
+bool dwarf2_evaluate_property (const struct dynamic_prop *prop,
+ struct frame_info *frame,
+ struct property_addr_info *addr_stack,
+ CORE_ADDR *value);
/* A helper for the compiler interface that compiles a single dynamic
property to C code.
evaluated.
SYM the originating symbol, used for error reporting. */
-void dwarf2_compile_property_to_c (struct ui_file *stream,
+void dwarf2_compile_property_to_c (string_file *stream,
const char *result_name,
struct gdbarch *gdbarch,
unsigned char *registers_used,
zero. */
size_t size;
+ /* When true this location expression is a reference and actually
+ describes the address at which the value of the attribute can be
+ found. When false the expression provides the value of the attribute
+ directly. */
+ bool is_reference;
+
/* The compilation unit containing the symbol whose location
we're computing. */
struct dwarf2_per_cu_data *per_cu;
LONGEST offset;
/* The type of the object whose property is dynamic. In the example
- provided above, this would the the array's index type. */
+ provided above, this would the array's index type. */
struct type *type;
};
/* A dynamic property is either expressed as a single location expression
or a location list. If the property is an indirection, pointing to
- another die, keep track of the targeted type in REFERENCED_TYPE. */
+ another die, keep track of the targeted type in PROPERTY_TYPE.
+ Alternatively, if the property location gives the property value
+ directly then it will have PROPERTY_TYPE. */
struct dwarf2_property_baton
{
/* If the property is an indirection, we need to evaluate the location
- in the context of the type REFERENCED_TYPE.
- If NULL, the location is the actual value of the property. */
- struct type *referenced_type;
+ in the context of the type PROPERTY_TYPE. If the property is supplied
+ by value then it will be of PROPERTY_TYPE. This field should never be
+ NULL. */
+ struct type *property_type;
union
{
- /* Location expression. */
+ /* Location expression either evaluated in the context of
+ PROPERTY_TYPE, or a value of type PROPERTY_TYPE. */
struct dwarf2_locexpr_baton locexpr;
- /* Location list to be evaluated in the context of REFERENCED_TYPE. */
+ /* Location list to be evaluated in the context of PROPERTY_TYPE. */
struct dwarf2_loclist_baton loclist;
- /* The location is an offset to REFERENCED_TYPE. */
+ /* The location is an offset to PROPERTY_TYPE. */
struct dwarf2_offset_baton offset_info;
};
};
extern void dwarf2_compile_expr_to_ax (struct agent_expr *expr,
struct axs_value *loc,
- struct gdbarch *arch,
unsigned int addr_size,
const gdb_byte *op_ptr,
const gdb_byte *op_end,
/* A helper function to convert a DWARF register to an arch register.
ARCH is the architecture.
DWARF_REG is the register.
- This will throw an exception if the DWARF register cannot be
- translated to an architecture register. */
+ If DWARF_REG is bad then a complaint is issued and -1 is returned.
+ Note: Some targets get this wrong. */
+
+extern int dwarf_reg_to_regnum (struct gdbarch *arch, int dwarf_reg);
+
+/* A wrapper on dwarf_reg_to_regnum to throw an exception if the
+ DWARF register cannot be translated to an architecture register.
+ This takes a ULONGEST instead of an int because some callers actually have
+ a ULONGEST. Negative values passed as ints will still be flagged as
+ invalid. */
-extern int dwarf2_reg_to_regnum_or_error (struct gdbarch *arch, int dwarf_reg);
+extern int dwarf_reg_to_regnum_or_error (struct gdbarch *arch,
+ ULONGEST dwarf_reg);
#endif /* dwarf2loc.h */
projects / deliverable / binutils-gdb.git / blobdiff