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Diffstat (limited to 'gdb/dwarf2loc.c')
-rw-r--r--gdb/dwarf2loc.c45
1 files changed, 41 insertions, 4 deletions
diff --git a/gdb/dwarf2loc.c b/gdb/dwarf2loc.c
index 1056e5d..fd78f6f 100644
--- a/gdb/dwarf2loc.c
+++ b/gdb/dwarf2loc.c
@@ -303,6 +303,7 @@ struct dwarf_expr_baton
{
struct frame_info *frame;
struct dwarf2_per_cu_data *per_cu;
+ CORE_ADDR obj_address;
};
/* Helper functions for dwarf2_evaluate_loc_desc. */
@@ -1206,6 +1207,7 @@ dwarf_expr_push_dwarf_reg_entry_value (struct dwarf_expr_context *ctx,
baton_local.frame = caller_frame;
baton_local.per_cu = caller_per_cu;
+ baton_local.obj_address = 0;
saved_ctx.gdbarch = ctx->gdbarch;
saved_ctx.addr_size = ctx->addr_size;
@@ -1235,6 +1237,22 @@ dwarf_expr_get_addr_index (void *baton, unsigned int index)
return dwarf2_read_addr_index (debaton->per_cu, index);
}
+/* Callback function for get_object_address. Return the address of the VLA
+ object. */
+
+static CORE_ADDR
+dwarf_expr_get_obj_addr (void *baton)
+{
+ struct dwarf_expr_baton *debaton = baton;
+
+ gdb_assert (debaton != NULL);
+
+ if (debaton->obj_address == 0)
+ error (_("Location address is not set."));
+
+ return debaton->obj_address;
+}
+
/* VALUE must be of type lval_computed with entry_data_value_funcs. Perform
the indirect method on it, that is use its stored target value, the sole
purpose of entry_data_value_funcs.. */
@@ -2190,7 +2208,8 @@ static const struct dwarf_expr_context_funcs dwarf_expr_ctx_funcs =
dwarf_expr_dwarf_call,
dwarf_expr_get_base_type,
dwarf_expr_push_dwarf_reg_entry_value,
- dwarf_expr_get_addr_index
+ dwarf_expr_get_addr_index,
+ dwarf_expr_get_obj_addr
};
/* Evaluate a location description, starting at DATA and with length
@@ -2219,6 +2238,7 @@ dwarf2_evaluate_loc_desc_full (struct type *type, struct frame_info *frame,
baton.frame = frame;
baton.per_cu = per_cu;
+ baton.obj_address = 0;
ctx = new_dwarf_expr_context ();
old_chain = make_cleanup_free_dwarf_expr_context (ctx);
@@ -2424,6 +2444,7 @@ dwarf2_evaluate_loc_desc (struct type *type, struct frame_info *frame,
static int
dwarf2_locexpr_baton_eval (const struct dwarf2_locexpr_baton *dlbaton,
+ CORE_ADDR addr,
CORE_ADDR *valp)
{
struct dwarf_expr_context *ctx;
@@ -2439,6 +2460,7 @@ dwarf2_locexpr_baton_eval (const struct dwarf2_locexpr_baton *dlbaton,
baton.frame = get_selected_frame (NULL);
baton.per_cu = dlbaton->per_cu;
+ baton.obj_address = addr;
objfile = dwarf2_per_cu_objfile (dlbaton->per_cu);
@@ -2479,7 +2501,8 @@ dwarf2_locexpr_baton_eval (const struct dwarf2_locexpr_baton *dlbaton,
/* See dwarf2loc.h. */
int
-dwarf2_evaluate_property (const struct dynamic_prop *prop, CORE_ADDR *value)
+dwarf2_evaluate_property (const struct dynamic_prop *prop,
+ CORE_ADDR address, CORE_ADDR *value)
{
if (prop == NULL)
return 0;
@@ -2490,7 +2513,7 @@ dwarf2_evaluate_property (const struct dynamic_prop *prop, CORE_ADDR *value)
{
const struct dwarf2_property_baton *baton = prop->data.baton;
- if (dwarf2_locexpr_baton_eval (&baton->locexpr, value))
+ if (dwarf2_locexpr_baton_eval (&baton->locexpr, address, value))
{
if (baton->referenced_type)
{
@@ -2641,6 +2664,15 @@ needs_get_addr_index (void *baton, unsigned int index)
return 1;
}
+/* DW_OP_push_object_address has a frame already passed through. */
+
+static CORE_ADDR
+needs_get_obj_addr (void *baton)
+{
+ /* Nothing to do. */
+ return 1;
+}
+
/* Virtual method table for dwarf2_loc_desc_needs_frame below. */
static const struct dwarf_expr_context_funcs needs_frame_ctx_funcs =
@@ -2655,7 +2687,8 @@ static const struct dwarf_expr_context_funcs needs_frame_ctx_funcs =
needs_frame_dwarf_call,
NULL, /* get_base_type */
needs_dwarf_reg_entry_value,
- needs_get_addr_index
+ needs_get_addr_index,
+ needs_get_obj_addr
};
/* Return non-zero iff the location expression at DATA (length SIZE)
@@ -3304,6 +3337,10 @@ dwarf2_compile_expr_to_ax (struct agent_expr *expr, struct axs_value *loc,
unimplemented (op);
break;
+ case DW_OP_push_object_address:
+ unimplemented (op);
+ break;
+
case DW_OP_skip:
offset = extract_signed_integer (op_ptr, 2, byte_order);
op_ptr += 2;