asan: score: global-buffer-overflow

[deliverable/binutils-gdb.git] / gdb / auxv.c

diff --git a/gdb/auxv.c b/gdb/auxv.c
index e654abd3b3fff7285ee3e834c7ab6f07dcec3b77..53958011c81941c7cef35db50811b5b59fd6fb7f 100644 (file)
--- a/gdb/auxv.c
+++ b/gdb/auxv.c
@@ -18,23 +18,21 @@
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "defs.h"
-
-/* Standard C includes.  */
-#include <fcntl.h>
-#include <unistd.h>
-
-/* Local non-gdb includes.  */
-#include "auxv.h"
-#include "command.h"
-#include "common/filestuff.h"
-#include "elf/common.h"
-#include "gdbcore.h"
+#include "target.h"
 #include "gdbtypes.h"
+#include "command.h"
 #include "inferior.h"
-#include "objfiles.h"
-#include "observable.h"
-#include "target.h"
 #include "valprint.h"
+#include "gdbcore.h"
+#include "observable.h"
+#include "gdbsupport/filestuff.h"
+#include "objfiles.h"
+
+#include "auxv.h"
+#include "elf/common.h"
+
+#include <unistd.h>
+#include <fcntl.h>
 
 
 /* Implement the to_xfer_partial target_ops method.  This function
@@ -295,9 +293,6 @@ target_auxv_parse (gdb_byte **readptr,
 }
 
 
-/* Per-inferior data key for auxv.  */
-static const struct inferior_data *auxv_inferior_data;
-
 /*  Auxiliary Vector information structure.  This is used by GDB
     for caching purposes for each inferior.  This helps reduce the
     overhead of transfering data from a remote target to the local host.  */
@@ -306,32 +301,15 @@ struct auxv_info
   gdb::optional<gdb::byte_vector> data;
 };
 
-/* Handles the cleanup of the auxv cache for inferior INF.  ARG is ignored.
-   Frees whatever allocated space there is to be freed and sets INF's auxv cache
-   data pointer to NULL.
-
-   This function is called when the following events occur: inferior_appeared,
-   inferior_exit and executable_changed.  */
-
-static void
-auxv_inferior_data_cleanup (struct inferior *inf, void *arg)
-{
-  struct auxv_info *info;
-
-  info = (struct auxv_info *) inferior_data (inf, auxv_inferior_data);
-  if (info != NULL)
-    {
-      delete info;
-      set_inferior_data (inf, auxv_inferior_data, NULL);
-    }
-}
+/* Per-inferior data key for auxv.  */
+static const struct inferior_key<auxv_info> auxv_inferior_data;
 
 /* Invalidate INF's auxv cache.  */
 
 static void
 invalidate_auxv_cache_inf (struct inferior *inf)
 {
-  auxv_inferior_data_cleanup (inf, NULL);
+  auxv_inferior_data.clear (inf);
 }
 
 /* Invalidate current inferior's auxv cache.  */
@@ -352,12 +330,11 @@ get_auxv_inferior_data (struct target_ops *ops)
   struct auxv_info *info;
   struct inferior *inf = current_inferior ();
 
-  info = (struct auxv_info *) inferior_data (inf, auxv_inferior_data);
+  info = auxv_inferior_data.get (inf);
   if (info == NULL)
     {
-      info = new auxv_info;
+      info = auxv_inferior_data.emplace (inf);
       info->data = target_read_alloc (ops, TARGET_OBJECT_AUXV, NULL);
-      set_inferior_data (inf, auxv_inferior_data, info);
     }
 
   return info;
@@ -576,10 +553,6 @@ _initialize_auxv (void)
            _("Display the inferior's auxiliary vector.\n\
 This is information provided by the operating system at program startup."));
 
-  /* Set an auxv cache per-inferior.  */
-  auxv_inferior_data
-    = register_inferior_data_with_cleanup (NULL, auxv_inferior_data_cleanup);
-
   /* Observers used to invalidate the auxv cache when needed.  */
   gdb::observers::inferior_exit.attach (invalidate_auxv_cache_inf);
   gdb::observers::inferior_appeared.attach (invalidate_auxv_cache_inf);