/* DWARF 2 location expression support for GDB.
- Copyright (C) 2003-2022 Free Software Foundation, Inc.
+ Copyright (C) 2003-2023 Free Software Foundation, Inc.
Contributed by Daniel Jacobowitz, MontaVista Software, Inc.
#include "gdbsupport/byte-vector.h"
static struct value *dwarf2_evaluate_loc_desc_full
- (struct type *type, struct frame_info *frame, const gdb_byte *data,
+ (struct type *type, frame_info_ptr frame, const gdb_byte *data,
size_t size, dwarf2_per_cu_data *per_cu, dwarf2_per_objfile *per_objfile,
struct type *subobj_type, LONGEST subobj_byte_offset, bool as_lval = true);
struct gdbarch *gdbarch = objfile->arch ();
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
unsigned int addr_size = baton->per_cu->addr_size ();
- int signed_addr_p = bfd_get_sign_extend_vma (objfile->obfd);
+ int signed_addr_p = bfd_get_sign_extend_vma (objfile->obfd.get ());
/* Adjustment for relocatable objects. */
CORE_ADDR text_offset = baton->per_objfile->objfile->text_section_offset ();
CORE_ADDR base_address = baton->base_address;
LOC_BLOCK functions using a DWARF expression as its DW_AT_frame_base. */
static CORE_ADDR
-locexpr_get_frame_base (struct symbol *framefunc, struct frame_info *frame)
+locexpr_get_frame_base (struct symbol *framefunc, frame_info_ptr frame)
{
struct gdbarch *gdbarch;
struct type *type;
dwarf2_evaluate_loc_desc returns a value representing a variable at
that address. The frame base address is thus this variable's
address. */
- return value_address (result);
+ return result->address ();
}
/* Vector for inferior functions as represented by LOC_BLOCK, if the inferior
LOC_BLOCK functions using a DWARF location list as its DW_AT_frame_base. */
static CORE_ADDR
-loclist_get_frame_base (struct symbol *framefunc, struct frame_info *frame)
+loclist_get_frame_base (struct symbol *framefunc, frame_info_ptr frame)
{
struct gdbarch *gdbarch;
struct type *type;
dwarf2_evaluate_loc_desc returns a value representing a variable at
that address. The frame base address is thus this variable's
address. */
- return value_address (result);
+ return result->address ();
}
/* Vector for inferior functions as represented by LOC_BLOCK, if the inferior
call_site_target::iterate_over_addresses
(struct gdbarch *call_site_gdbarch,
const struct call_site *call_site,
- struct frame_info *caller_frame,
+ frame_info_ptr caller_frame,
iterate_ftype callback) const
{
switch (m_loc_kind)
dwarf_block->per_objfile);
/* DW_AT_call_target is a DWARF expression, not a DWARF location. */
if (VALUE_LVAL (val) == lval_memory)
- callback (value_address (val));
+ callback (val->address ());
else
callback (value_as_address (val));
}
case call_site_target::PHYSADDR:
{
dwarf2_per_objfile *per_objfile = call_site->per_objfile;
- compunit_symtab *cust = per_objfile->get_symtab (call_site->per_cu);
- int sect_idx = cust->block_line_section ();
- CORE_ADDR delta = per_objfile->objfile->section_offsets[sect_idx];
+ CORE_ADDR delta = per_objfile->objfile->text_section_offset ();
callback (m_loc.physaddr + delta);
}
case call_site_target::ADDRESSES:
{
dwarf2_per_objfile *per_objfile = call_site->per_objfile;
- compunit_symtab *cust = per_objfile->get_symtab (call_site->per_cu);
- int sect_idx = cust->block_line_section ();
- CORE_ADDR delta = per_objfile->objfile->section_offsets[sect_idx];
+ CORE_ADDR delta = per_objfile->objfile->text_section_offset ();
for (unsigned i = 0; i < m_loc.addresses.length; ++i)
callback (m_loc.addresses.values[i] + delta);
break;
default:
- internal_error (__FILE__, __LINE__, _("invalid call site target kind"));
+ internal_error (_("invalid call site target kind"));
}
}
/* See loc.h. */
struct call_site_parameter *
-dwarf_expr_reg_to_entry_parameter (struct frame_info *frame,
+dwarf_expr_reg_to_entry_parameter (frame_info_ptr frame,
enum call_site_parameter_kind kind,
union call_site_parameter_u kind_u,
dwarf2_per_cu_data **per_cu_return,
{
CORE_ADDR func_addr, caller_pc;
struct gdbarch *gdbarch;
- struct frame_info *caller_frame;
+ frame_info_ptr caller_frame;
struct call_site *call_site;
int iparams;
/* Initialize it just to avoid a GCC false warning. */
static struct value *
dwarf_entry_parameter_to_value (struct call_site_parameter *parameter,
CORE_ADDR deref_size, struct type *type,
- struct frame_info *caller_frame,
+ frame_info_ptr caller_frame,
dwarf2_per_cu_data *per_cu,
dwarf2_per_objfile *per_objfile)
{
static struct value *
entry_data_value_coerce_ref (const struct value *value)
{
- struct type *checked_type = check_typedef (value_type (value));
+ struct type *checked_type = check_typedef (value->type ());
struct value *target_val;
if (!TYPE_IS_REFERENCE (checked_type))
return NULL;
- target_val = (struct value *) value_computed_closure (value);
- value_incref (target_val);
+ target_val = (struct value *) value->computed_closure ();
+ target_val->incref ();
return target_val;
}
static void *
entry_data_value_copy_closure (const struct value *v)
{
- struct value *target_val = (struct value *) value_computed_closure (v);
+ struct value *target_val = (struct value *) v->computed_closure ();
- value_incref (target_val);
+ target_val->incref ();
return target_val;
}
static void
entry_data_value_free_closure (struct value *v)
{
- struct value *target_val = (struct value *) value_computed_closure (v);
+ struct value *target_val = (struct value *) v->computed_closure ();
- value_decref (target_val);
+ target_val->decref ();
}
/* Vector for methods for an entry value reference where the referenced value
entry_data_value_free_closure
};
-/* Read parameter of TYPE at (callee) FRAME's function entry. KIND and KIND_U
- are used to match DW_AT_location at the caller's
- DW_TAG_call_site_parameter.
-
- Function always returns non-NULL value. It throws NO_ENTRY_VALUE_ERROR if it
- cannot resolve the parameter for any reason. */
-
-static struct value *
-value_of_dwarf_reg_entry (struct type *type, struct frame_info *frame,
+/* See dwarf2/loc.h. */
+struct value *
+value_of_dwarf_reg_entry (struct type *type, frame_info_ptr frame,
enum call_site_parameter_kind kind,
union call_site_parameter_u kind_u)
{
struct type *checked_type = check_typedef (type);
- struct type *target_type = TYPE_TARGET_TYPE (checked_type);
- struct frame_info *caller_frame = get_prev_frame (frame);
+ struct type *target_type = checked_type->target_type ();
+ frame_info_ptr caller_frame = get_prev_frame (frame);
struct value *outer_val, *target_val, *val;
struct call_site_parameter *parameter;
dwarf2_per_cu_data *caller_per_cu;
entry value. */
if (!TYPE_IS_REFERENCE (checked_type)
- || TYPE_TARGET_TYPE (checked_type) == NULL)
+ || checked_type->target_type () == NULL)
return outer_val;
target_val = dwarf_entry_parameter_to_value (parameter,
- TYPE_LENGTH (target_type),
+ target_type->length (),
target_type, caller_frame,
caller_per_cu,
caller_per_objfile);
- val = allocate_computed_value (type, &entry_data_value_funcs,
+ val = value::allocate_computed (type, &entry_data_value_funcs,
release_value (target_val).release ());
/* Copy the referencing pointer to the new computed value. */
- memcpy (value_contents_raw (val).data (),
- value_contents_raw (outer_val).data (),
- TYPE_LENGTH (checked_type));
- set_value_lazy (val, 0);
+ memcpy (val->contents_raw ().data (),
+ outer_val->contents_raw ().data (),
+ checked_type->length ());
+ val->set_lazy (0);
return val;
}
cannot resolve the parameter for any reason. */
static struct value *
-value_of_dwarf_block_entry (struct type *type, struct frame_info *frame,
+value_of_dwarf_block_entry (struct type *type, frame_info_ptr frame,
const gdb_byte *block, size_t block_len)
{
union call_site_parameter_u kind_u;
if (bytes != NULL)
{
if (byte_offset >= 0
- && byte_offset + TYPE_LENGTH (TYPE_TARGET_TYPE (type)) <= len)
+ && byte_offset + type->target_type ()->length () <= len)
{
bytes += byte_offset;
- result = value_from_contents (TYPE_TARGET_TYPE (type), bytes);
+ result = value_from_contents (type->target_type (), bytes);
}
else
invalid_synthetic_pointer ();
}
else
- result = allocate_optimized_out_value (TYPE_TARGET_TYPE (type));
+ result = value::allocate_optimized_out (type->target_type ());
return result;
}
indirect_synthetic_pointer (sect_offset die, LONGEST byte_offset,
dwarf2_per_cu_data *per_cu,
dwarf2_per_objfile *per_objfile,
- struct frame_info *frame, struct type *type,
+ frame_info_ptr frame, struct type *type,
bool resolve_abstract_p)
{
/* Fetch the location expression of the DIE we're pointing to. */
return dwarf2_evaluate_loc_desc_full (orig_type, frame, baton.data,
baton.size, baton.per_cu,
baton.per_objfile,
- TYPE_TARGET_TYPE (type),
+ type->target_type (),
byte_offset);
else
return fetch_const_value_from_synthetic_pointer (die, byte_offset, per_cu,
SUBOBJ_BYTE_OFFSET within the variable of type TYPE. */
static struct value *
-dwarf2_evaluate_loc_desc_full (struct type *type, struct frame_info *frame,
+dwarf2_evaluate_loc_desc_full (struct type *type, frame_info_ptr frame,
const gdb_byte *data, size_t size,
dwarf2_per_cu_data *per_cu,
dwarf2_per_objfile *per_objfile,
invalid_synthetic_pointer ();
if (size == 0)
- return allocate_optimized_out_value (subobj_type);
+ return value::allocate_optimized_out (subobj_type);
dwarf_expr_context ctx (per_objfile, per_cu->addr_size ());
if (ex.error == NOT_AVAILABLE_ERROR)
{
free_values.free_to_mark ();
- retval = allocate_value (subobj_type);
- mark_value_bytes_unavailable (retval, 0,
- TYPE_LENGTH (subobj_type));
+ retval = value::allocate (subobj_type);
+ retval->mark_bytes_unavailable (0,
+ subobj_type->length ());
return retval;
}
else if (ex.error == NO_ENTRY_VALUE_ERROR)
if (entry_values_debug)
exception_print (gdb_stdout, ex);
free_values.free_to_mark ();
- return allocate_optimized_out_value (subobj_type);
+ return value::allocate_optimized_out (subobj_type);
}
else
throw;
value_ref_ptr value_holder = value_ref_ptr::new_reference (retval);
free_values.free_to_mark ();
- return value_copy (retval);
+ return retval->copy ();
}
/* The exported interface to dwarf2_evaluate_loc_desc_full; it always
passes 0 as the byte_offset. */
struct value *
-dwarf2_evaluate_loc_desc (struct type *type, struct frame_info *frame,
+dwarf2_evaluate_loc_desc (struct type *type, frame_info_ptr frame,
const gdb_byte *data, size_t size,
dwarf2_per_cu_data *per_cu,
dwarf2_per_objfile *per_objfile, bool as_lval)
static int
dwarf2_locexpr_baton_eval (const struct dwarf2_locexpr_baton *dlbaton,
- struct frame_info *frame,
+ frame_info_ptr frame,
const struct property_addr_info *addr_stack,
CORE_ADDR *valp,
gdb::array_view<CORE_ADDR> push_values,
throw;
}
- if (value_optimized_out (result))
+ if (result->optimized_out ())
return 0;
if (VALUE_LVAL (result) == lval_memory)
- *valp = value_address (result);
+ *valp = result->address ();
else
{
if (VALUE_LVAL (result) == not_lval)
bool
dwarf2_evaluate_property (const struct dynamic_prop *prop,
- struct frame_info *frame,
+ frame_info_ptr frame,
const struct property_addr_info *addr_stack,
CORE_ADDR *value,
gdb::array_view<CORE_ADDR> push_values)
if (prop == NULL)
return false;
+ /* Evaluating a property should not change the current language.
+ Without this here this could happen if the code below selects a
+ frame. */
+ scoped_restore_current_language save_language;
+
if (frame == NULL && has_stack_frames ())
frame = get_selected_frame (NULL);
gdb_assert (baton->property_type != NULL);
struct type *type = check_typedef (baton->property_type);
- if (TYPE_LENGTH (type) < sizeof (CORE_ADDR)
+ if (type->length () < sizeof (CORE_ADDR)
&& !type->is_unsigned ())
{
/* If we have a valid return candidate and it's value
val = dwarf2_evaluate_loc_desc (baton->property_type, frame, data,
size, baton->loclist.per_cu,
baton->loclist.per_objfile);
- if (!value_optimized_out (val))
+ if (!val->optimized_out ())
{
*value = value_as_address (val);
return true;
{
int targ = offsets[dw_labels[i]];
if (targ == -1)
- internal_error (__FILE__, __LINE__, _("invalid label"));
+ internal_error (_("invalid label"));
ax_label (expr, patches[i], targ);
}
}
/* Return the value of SYMBOL in FRAME using the DWARF-2 expression
evaluator to calculate the location. */
static struct value *
-locexpr_read_variable (struct symbol *symbol, struct frame_info *frame)
+locexpr_read_variable (struct symbol *symbol, frame_info_ptr frame)
{
struct dwarf2_locexpr_baton *dlbaton
= (struct dwarf2_locexpr_baton *) SYMBOL_LOCATION_BATON (symbol);
will be thrown. */
static struct value *
-locexpr_read_variable_at_entry (struct symbol *symbol, struct frame_info *frame)
+locexpr_read_variable_at_entry (struct symbol *symbol, frame_info_ptr frame)
{
struct dwarf2_locexpr_baton *dlbaton
= (struct dwarf2_locexpr_baton *) SYMBOL_LOCATION_BATON (symbol);
/* Return the value of SYMBOL in FRAME using the DWARF-2 expression
evaluator to calculate the location. */
static struct value *
-loclist_read_variable (struct symbol *symbol, struct frame_info *frame)
+loclist_read_variable (struct symbol *symbol, frame_info_ptr frame)
{
struct dwarf2_loclist_baton *dlbaton
= (struct dwarf2_loclist_baton *) SYMBOL_LOCATION_BATON (symbol);
if it cannot resolve the parameter for any reason. */
static struct value *
-loclist_read_variable_at_entry (struct symbol *symbol, struct frame_info *frame)
+loclist_read_variable_at_entry (struct symbol *symbol, frame_info_ptr frame)
{
struct dwarf2_loclist_baton *dlbaton
= (struct dwarf2_loclist_baton *) SYMBOL_LOCATION_BATON (symbol);
CORE_ADDR pc;
if (frame == NULL || !get_frame_func_if_available (frame, &pc))
- return allocate_optimized_out_value (symbol->type ());
+ return value::allocate_optimized_out (symbol->type ());
data = dwarf2_find_location_expression (dlbaton, &size, pc);
if (data == NULL)
- return allocate_optimized_out_value (symbol->type ());
+ return value::allocate_optimized_out (symbol->type ());
return value_of_dwarf_block_entry (symbol->type (), frame, data, size);
}
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
unsigned int addr_size = dlbaton->per_cu->addr_size ();
int offset_size = dlbaton->per_cu->offset_size ();
- int signed_addr_p = bfd_get_sign_extend_vma (objfile->obfd);
+ int signed_addr_p = bfd_get_sign_extend_vma (objfile->obfd.get ());
/* Adjustment for relocatable objects. */
CORE_ADDR text_offset = objfile->text_section_offset ();
CORE_ADDR base_address = dlbaton->base_address;
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