/* DWARF 2 location expression support for GDB.
- Copyright (C) 2003-2018 Free Software Foundation, Inc.
+ Copyright (C) 2003-2019 Free Software Foundation, Inc.
Contributed by Daniel Jacobowitz, MontaVista Software, Inc.
#include "dwarf2.h"
#include "dwarf2expr.h"
#include "dwarf2loc.h"
+#include "dwarf2read.h"
#include "dwarf2-frame.h"
#include "compile/compile.h"
-#include "selftest.h"
+#include "gdbsupport/selftest.h"
#include <algorithm>
#include <vector>
#include <unordered_set>
-#include "common/underlying.h"
-#include "common/byte-vector.h"
+#include "gdbsupport/underlying.h"
+#include "gdbsupport/byte-vector.h"
extern int dwarf_always_disassemble;
}
/* Callback function for dwarf2_evaluate_loc_desc.
- Fetch the address indexed by DW_OP_GNU_addr_index. */
+ Fetch the address indexed by DW_OP_addrx or DW_OP_GNU_addr_index. */
CORE_ADDR get_addr_index (unsigned int index) override
{
{
struct call_site_chain *retval = NULL;
- TRY
+ try
{
retval = call_site_find_chain_1 (gdbarch, caller_pc, callee_pc);
}
- CATCH (e, RETURN_MASK_ERROR)
+ catch (const gdb_exception_error &e)
{
if (e.error == NO_ENTRY_VALUE_ERROR)
{
return NULL;
}
else
- throw_exception (e);
+ throw;
}
- END_CATCH
return retval;
}
target_type, caller_frame,
caller_per_cu);
- release_value (target_val).release ();
val = allocate_computed_value (type, &entry_data_value_funcs,
- target_val /* closure */);
+ release_value (target_val).release ());
/* Copy the referencing pointer to the new computed value. */
memcpy (value_contents_raw (val), value_contents_raw (outer_val),
ctx.ref_addr_size = dwarf2_per_cu_ref_addr_size (per_cu);
ctx.offset = dwarf2_per_cu_text_offset (per_cu);
- TRY
+ try
{
ctx.eval (data, size);
}
- CATCH (ex, RETURN_MASK_ERROR)
+ catch (const gdb_exception_error &ex)
{
if (ex.error == NOT_AVAILABLE_ERROR)
{
return allocate_optimized_out_value (subobj_type);
}
else
- throw_exception (ex);
+ throw;
}
- END_CATCH
if (ctx.pieces.size () > 0)
{
ctx.ref_addr_size = dwarf2_per_cu_ref_addr_size (dlbaton->per_cu);
ctx.offset = dwarf2_per_cu_text_offset (dlbaton->per_cu);
- TRY
+ try
{
ctx.eval (dlbaton->data, dlbaton->size);
}
- CATCH (ex, RETURN_MASK_ERROR)
+ catch (const gdb_exception_error &ex)
{
if (ex.error == NOT_AVAILABLE_ERROR)
{
return 0;
}
else
- throw_exception (ex);
+ throw;
}
- END_CATCH
switch (ctx.location)
{
/* See dwarf2loc.h. */
-int
+bool
dwarf2_evaluate_property (const struct dynamic_prop *prop,
struct frame_info *frame,
struct property_addr_info *addr_stack,
CORE_ADDR *value)
{
if (prop == NULL)
- return 0;
+ return false;
if (frame == NULL && has_stack_frames ())
frame = get_selected_frame (NULL);
*value = value_as_address (val);
}
- return 1;
+ return true;
}
}
break;
if (!value_optimized_out (val))
{
*value = value_as_address (val);
- return 1;
+ return true;
}
}
}
case PROP_CONST:
*value = prop->data.const_val;
- return 1;
+ return true;
case PROP_ADDR_OFFSET:
{
struct value *val;
for (pinfo = addr_stack; pinfo != NULL; pinfo = pinfo->next)
- if (pinfo->type == baton->referenced_type)
- break;
+ {
+ /* This approach lets us avoid checking the qualifiers. */
+ if (TYPE_MAIN_TYPE (pinfo->type)
+ == TYPE_MAIN_TYPE (baton->referenced_type))
+ break;
+ }
if (pinfo == NULL)
error (_("cannot find reference address for offset property"));
if (pinfo->valaddr != NULL)
val = value_at (baton->offset_info.type,
pinfo->addr + baton->offset_info.offset);
*value = value_as_address (val);
- return 1;
+ return true;
}
}
- return 0;
+ return false;
}
/* See dwarf2loc.h. */
push_address (0, 0);
}
- /* DW_OP_GNU_addr_index doesn't require a frame. */
+ /* DW_OP_addrx and DW_OP_GNU_addr_index doesn't require a frame. */
CORE_ADDR get_addr_index (unsigned int index) override
{
fprintf_filtered (stream, " offset %s", phex_nz (ul, 4));
break;
+ case DW_OP_addrx:
case DW_OP_GNU_addr_index:
data = safe_read_uleb128 (data, end, &ul);
ul = dwarf2_read_addr_index (per_cu, ul);