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Move get_object_address to dwarf_expr_context

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Following the idea of merging the evaluators, the get_object_address
and can be moved from dwarf_expr_executor and dwarf_evaluate_loc_desc
classes to their base class dwarf_expr_context.

gdb/ChangeLog:

	* dwarf2/expr.c (dwarf_expr_context::get_object_address): Move
	from dwarf_evaluate_loc_desc.
	(class dwarf_expr_context): Add object address member to
	dwarf_expr_context.
	* dwarf2/expr.h (dwarf_expr_context::get_frame_pc): Remove
	method.
	* dwarf2/frame.c (dwarf_expr_executor::get_object_address):
	Remove method.
	* dwarf2/loc.c (dwarf_evaluate_loc_desc::get_object_address):
	move to dwarf_expr_context.
	(class dwarf_evaluate_loc_desc): Move object address member to
	dwarf_expr_context.
This commit is contained in:
Zoran Zaric
2020-10-09 13:25:10 +01:00
committed by Zoran Zaric
parent b6d156edd8
commit 73e6b86330
3 changed files with 9 additions and 18 deletions
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10
gdb/dwarf2/expr.h
View File

@ -188,6 +188,9 @@ struct dwarf_expr_context
/* Compilation unit used for the evaluation. */
dwarf2_per_cu_data *per_cu = nullptr;
/* Object address used for the evaluation. */
CORE_ADDR obj_address = 0;
/* Read LENGTH bytes at ADDR into BUF. */
virtual void read_mem (gdb_byte *buf, CORE_ADDR addr, size_t length) = 0;
@ -200,7 +203,12 @@ struct dwarf_expr_context
int deref_size) = 0;
/* Return the `object address' for DW_OP_push_object_address. */
virtual CORE_ADDR get_object_address () = 0;
virtual CORE_ADDR get_object_address ()
{
if (obj_address == 0)
error (_("Location address is not set."));
return obj_address;
}
private:

5
gdb/dwarf2/frame.c
View File

@ -244,11 +244,6 @@ public:
invalid ("DW_OP_entry_value");
}
CORE_ADDR get_object_address () override
{
invalid ("DW_OP_push_object_address");
}
private:
void invalid (const char *op) ATTRIBUTE_NORETURN

12
gdb/dwarf2/loc.c
View File

@ -674,18 +674,6 @@ public:
: dwarf_expr_context (per_objfile)
{}
CORE_ADDR obj_address;
/* Callback function for get_object_address. Return the address of the VLA
object. */
CORE_ADDR get_object_address () override
{
if (obj_address == 0)
error (_("Location address is not set."));
return obj_address;
}
/* Execute DWARF block of call_site_parameter which matches KIND and
KIND_U. Choose DEREF_SIZE value of that parameter. Search
caller of this objects's frame.