/* DWARF 2 Expression Evaluator.
- Copyright (C) 2001-2003, 2005, 2007-2012 Free Software Foundation,
- Inc.
+ Copyright (C) 2001-2015 Free Software Foundation, Inc.
Contributed by Daniel Berlin (dan@dberlin.org)
#include "gdbcore.h"
#include "dwarf2.h"
#include "dwarf2expr.h"
-#include "gdb_assert.h"
/* Local prototypes. */
{
struct dwarf_expr_context *retval;
- retval = xcalloc (1, sizeof (struct dwarf_expr_context));
+ retval = XCNEW (struct dwarf_expr_context);
retval->stack_len = 0;
retval->stack_allocated = 10;
- retval->stack = xmalloc (retval->stack_allocated
- * sizeof (struct dwarf_stack_value));
+ retval->stack = XNEWVEC (struct dwarf_stack_value, retval->stack_allocated);
retval->num_pieces = 0;
retval->pieces = 0;
retval->max_recursion_depth = 0x100;
}
else if (p->location == DWARF_VALUE_IMPLICIT_POINTER)
{
- p->v.ptr.die.cu_off = ctx->len;
+ p->v.ptr.die.sect_off = ctx->len;
p->v.ptr.offset = value_as_long (dwarf_expr_fetch (ctx, 0));
}
else if (p->location == DWARF_VALUE_REGISTER)
while (op_ptr < op_end)
{
- enum dwarf_location_atom op = *op_ptr++;
+ enum dwarf_location_atom op = (enum dwarf_location_atom) *op_ptr++;
ULONGEST result;
/* Assume the value is not in stack memory.
Code that knows otherwise sets this to 1.
error (_("DWARF-2 expression error: DW_OP_GNU_implicit_pointer "
"is not allowed in frame context"));
- /* The referred-to DIE of cu_offset kind. */
+ /* The referred-to DIE of sect_offset kind. */
ctx->len = extract_unsigned_integer (op_ptr, ctx->ref_addr_size,
byte_order);
op_ptr += ctx->ref_addr_size;
case DW_OP_breg31:
{
op_ptr = safe_read_sleb128 (op_ptr, op_end, &offset);
- result = (ctx->funcs->read_reg) (ctx->baton, op - DW_OP_breg0);
+ result = (ctx->funcs->read_addr_from_reg) (ctx->baton,
+ op - DW_OP_breg0);
result += offset;
result_val = value_from_ulongest (address_type, result);
}
{
op_ptr = safe_read_uleb128 (op_ptr, op_end, ®);
op_ptr = safe_read_sleb128 (op_ptr, op_end, &offset);
- result = (ctx->funcs->read_reg) (ctx->baton, reg);
+ result = (ctx->funcs->read_addr_from_reg) (ctx->baton, reg);
result += offset;
result_val = value_from_ulongest (address_type, result);
}
if (ctx->location == DWARF_VALUE_MEMORY)
result = dwarf_expr_fetch_address (ctx, 0);
else if (ctx->location == DWARF_VALUE_REGISTER)
- result = (ctx->funcs->read_reg) (ctx->baton,
- value_as_long (dwarf_expr_fetch (ctx, 0)));
+ result = (ctx->funcs->read_addr_from_reg)
+ (ctx->baton,
+ value_as_long (dwarf_expr_fetch (ctx, 0)));
else
error (_("Not implemented: computing frame "
"base using explicit value operator"));
type_die.cu_off = uoffset;
type = dwarf_get_base_type (ctx, type_die, 0);
- result = (ctx->funcs->read_reg) (ctx->baton, reg);
- result_val = value_from_ulongest (address_type, result);
- result_val = value_from_contents (type,
- value_contents_all (result_val));
+ result_val = ctx->funcs->get_reg_value (ctx->baton, type, reg);
}
break;
}
break;
+ case DW_OP_push_object_address:
+ /* Return the address of the object we are currently observing. */
+ result = (ctx->funcs->get_object_address) (ctx->baton);
+ result_val = value_from_ulongest (address_type, result);
+ break;
+
default:
error (_("Unhandled dwarf expression opcode 0x%x"), op);
}