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From: Sanimir Agovic <sanimir.agovic@intel.com>
To: tromey@redhat.com, palves@redhat.com, xdje42@gmail.com
Cc: gdb-patches@sourceware.org, keven.boell@intel.com
Subject: [PATCH v3 08/13] vla: resolve dynamic bounds if value contents is a constant byte-sequence
Date: Wed, 04 Dec 2013 14:21:00 -0000	[thread overview]
Message-ID: <1386166785-28037-10-git-send-email-sanimir.agovic@intel.com> (raw)
In-Reply-To: <1386166785-28037-1-git-send-email-sanimir.agovic@intel.com>

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


  parent reply	other threads:[~2013-12-04 14:21 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-12-04 14:20 [PATCH v3 00/13] C99 variable length array support Sanimir Agovic
2013-12-04 14:20 ` [PATCH v3 01/13] vla: introduce new bound type abstraction adapt uses Sanimir Agovic
2013-12-04 14:20 ` [PATCH v3 02/13] type: add c99 variable length array support Sanimir Agovic
2013-12-04 14:21 ` [PATCH v3 06/13] vla: print "dynamic length" for unresolved dynamic bounds Sanimir Agovic
2013-12-04 14:21 ` [PATCH v3 07/13] vla: support for DW_AT_count Sanimir Agovic
2013-12-04 14:21 ` [PATCH v3 03/13] vla: enable sizeof operator to work with variable length arrays Sanimir Agovic
2013-12-04 14:21 ` [PATCH v3 04/13] vla: enable sizeof operator for indirection Sanimir Agovic
2013-12-04 14:21 ` Sanimir Agovic [this message]
2013-12-04 14:21 ` [PATCH v3 12/13] test: basic c99 vla tests for C primitives Sanimir Agovic
2013-12-04 14:22 ` [PATCH v3 10/13] test: multi-dimensional c99 vla Sanimir Agovic
2013-12-04 14:22 ` [PATCH v3 09/13] test: cover subranges with present DW_AT_count attribute Sanimir Agovic
2013-12-04 14:22 ` [PATCH v3 06/13] vla: print "variable length" for unresolved dynamic bounds Sanimir Agovic
2013-12-04 14:22 ` [PATCH v3 11/13] test: evaluate pointers to C99 vla correctly Sanimir Agovic
2013-12-04 14:23 ` [PATCH v3 05/13] vla: update type from newly created value Sanimir Agovic
2013-12-06  7:36   ` Doug Evans
2013-12-16 15:21     ` Agovic, Sanimir
2013-12-16 17:58       ` Doug Evans
2013-12-04 14:23 ` [PATCH v3 13/13] test: add mi vla test Sanimir Agovic
2014-01-15 11:41 ` [PATCH v3 00/13] C99 variable length array support Joel Brobecker
2014-01-15 16:15   ` Tom Tromey
2014-01-15 17:54     ` Joel Brobecker
2014-01-15 18:00       ` Tom Tromey
2014-01-16 17:00   ` Agovic, Sanimir
2014-01-16 17:30     ` Tom Tromey
2014-01-17  2:23       ` Joel Brobecker

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