[PATCH v3 08/13] vla: resolve dynamic bounds if value contents is a constant byte-sequence

Sanimir Agovic
2013-12-04T14:21:46Z

A variable location might be a constant value and therefore no inferior memory
access is needed to read the content. In this case try to resolve the type
bounds.

2013-11-26 Sanimir Agovic <sanimir.agovic@intel.com>
Keven Boell <keven.boell@intel.com>

* findvar.c (default_read_var_value): Resolve dynamic bounds if location
points to a constant blob.

Change-Id: I73c31b64976b7d2c603c68d4584909502c8c5928
Signed-off-by: Sanimir Agovic <sanimir.agovic@intel.com>
---
gdb/findvar.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/gdb/findvar.c b/gdb/findvar.c
index ec6afd6..a543dc4 100644
--- a/gdb/findvar.c
+++ b/gdb/findvar.c
@@ -468,6 +468,9 @@ default_read_var_value (struct symbol *var, struct frame_info *frame)
return v;

case LOC_CONST_BYTES:
+ if (is_dynamic_type (type))
+ /* Value is a constant byte-sequence and needs no memory access. */
+ type = resolve_dynamic_type (type, /* Unused address. */ 0);
v = allocate_value (type);
memcpy (value_contents_raw (v), SYMBOL_VALUE_BYTES (var),
TYPE_LENGTH (type));
--
1.8.3.1