elf: Add la_activity during application exit

la_activity is not called during application exit, even though
la_objclose is.

Checked on x86_64-linux-gnu, i686-linux-gnu, and aarch64-linux-gnu.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>

1 files changed, 74 insertions, 0 deletions

diff --git a/elf/tst-auditmod23.c b/elf/tst-auditmod23.c
new file mode 100644
index 0000000000..d7c60d7a5c
--- /dev/null
+++ b/elf/tst-auditmod23.c
@@ -0,0 +1,74 @@
+/* Audit module loaded by tst-audit23.
+   Copyright (C) 2022 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <link.h>
+#include <inttypes.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/auxv.h>
+
+unsigned int
+la_version (unsigned int version)
+{
+  return LAV_CURRENT;
+}
+
+struct map_desc_t
+{
+  char *lname;
+  uintptr_t laddr;
+  Lmid_t lmid;
+};
+
+void
+la_activity (uintptr_t *cookie, unsigned int flag)
+{
+  fprintf (stderr, "%s: %d %"PRIxPTR"\n", __func__, flag, (uintptr_t) cookie);
+}
+
+unsigned int
+la_objopen (struct link_map *map, Lmid_t lmid, uintptr_t *cookie)
+{
+  const char *l_name = map->l_name[0] == '\0' ? "mainapp" : map->l_name;
+  fprintf (stderr, "%s: %"PRIxPTR" %s %"PRIxPTR" %ld\n", __func__,
+	   (uintptr_t) cookie, l_name, map->l_addr, lmid);
+
+  struct map_desc_t *map_desc = malloc (sizeof (struct map_desc_t));
+  if (map_desc == NULL)
+    abort ();
+
+  map_desc->lname = strdup (l_name);
+  map_desc->laddr = map->l_addr;
+  map_desc->lmid = lmid;
+
+  *cookie = (uintptr_t) map_desc;
+
+  return 0;
+}
+
+unsigned int
+la_objclose (uintptr_t *cookie)
+{
+  struct map_desc_t *map_desc = (struct map_desc_t *) *cookie;
+  fprintf (stderr, "%s: %"PRIxPTR" %s %"PRIxPTR" %ld\n", __func__,
+	   (uintptr_t) cookie, map_desc->lname, map_desc->laddr,
+	   map_desc->lmid);
+
+  return 0;
+}