PR 16286

	* c-lang.c (c_get_string): Ignore the declared size of the object
	if a specific length is requested.

	testsuite/
	* gdb.python/py-value.c: #include stdlib.h, string.h.
	(str): New struct.
	(main): New local xstr.
	* gdb.python/py-value.exp (test_value_in_inferior): Add test to
	fetch a value as a string with a length beyond the declared length
	of the array.

1 files changed, 17 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.python/py-value.c b/gdb/testsuite/gdb.python/py-value.c
index 0c94e64..4f8c27b 100644
--- a/gdb/testsuite/gdb.python/py-value.c
+++ b/gdb/testsuite/gdb.python/py-value.c
@@ -16,6 +16,8 @@
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 
 struct s
 {
@@ -39,6 +41,13 @@ typedef struct s *PTR;
 
 enum e evalue = TWO;
 
+struct str
+{
+  int length;
+  /* Variable length.  */
+  char text[1];
+};
+
 #ifdef __cplusplus
 
 struct Base {
@@ -86,6 +95,8 @@ main (int argc, char *argv[])
   int i = 2;
   int *ptr_i = &i;
   const char *sn = 0;
+  struct str *xstr;
+
   s.a = 3;
   s.b = 5;
   u.a = 7;
@@ -96,6 +107,12 @@ main (int argc, char *argv[])
   ptr_ref(ptr_i);
 #endif
 
+#define STR_LENGTH 100
+  xstr = (struct str *) malloc (sizeof (*xstr) + STR_LENGTH);
+  xstr->length = STR_LENGTH;
+  memset (xstr->text, 'x', STR_LENGTH);
+#undef STR_LENGTH
+
   save_argv = argv;      /* break to inspect struct and union */
   return 0;
 }