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* linux-thread-db.c (try_thread_db_load_from_pdir_1): Fix absolute

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path check.  Use xmalloc and cleanups.
	(try_thread_db_load_from_dir): Use xmalloc and cleanups.
This commit is contained in:
Tom Tromey 2011-05-18 15:00:55 +00:00
parent dd98f8d276
commit 05386e9ec7
2 changed files with 33 additions and 31 deletions
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6
gdb/ChangeLog
View file

@ -1,3 +1,9 @@
2011-05-18 Tom Tromey <tromey@redhat.com>
* linux-thread-db.c (try_thread_db_load_from_pdir_1): Fix absolute
path check. Use xmalloc and cleanups.
(try_thread_db_load_from_dir): Use xmalloc and cleanups.
2011-05-17 Tom Tromey <tromey@redhat.com>
* cp-valprint.c (cp_print_value_fields): Catch errors from

58
gdb/linux-thread-db.c
View file

@ -819,29 +819,29 @@ try_thread_db_load (const char *library)
static int
try_thread_db_load_from_pdir_1 (struct objfile *obj)
{
char path[PATH_MAX], *cp;
struct cleanup *cleanup;
char *path, *cp;
int result;
gdb_assert (strlen (obj->name) < sizeof (path));
strcpy (path, obj->name);
cp = strrchr (path, '/');
if (cp == NULL)
if (obj->name[0] != '/')
{
warning (_("Expected absolute pathname for libpthread in the"
" inferior, but got %s."), path);
" inferior, but got %s."), obj->name);
return 0;
}
else if (cp + 1 + strlen (LIBTHREAD_DB_SO) + 1 > path + sizeof (path))
{
warning (_("Unexpected: path to libpthread in the inferior is"
" too long: %s"), path);
return 0;
}
else
{
strcpy (cp + 1, LIBTHREAD_DB_SO);
return try_thread_db_load (path);
}
path = xmalloc (strlen (obj->name) + 1 + strlen (LIBTHREAD_DB_SO) + 1);
cleanup = make_cleanup (xfree, path);
strcpy (path, obj->name);
cp = strrchr (path, '/');
/* This should at minimum hit the first character. */
gdb_assert (cp != NULL);
strcpy (cp + 1, LIBTHREAD_DB_SO);
result = try_thread_db_load (path);
do_cleanups (cleanup);
return result;
}
/* Handle $pdir in libthread-db-search-path.
@ -888,24 +888,20 @@ try_thread_db_load_from_sdir (void)
static int
try_thread_db_load_from_dir (const char *dir, size_t dir_len)
{
char path[PATH_MAX];
struct cleanup *cleanup;
char *path;
int result;
if (dir_len + 1 + strlen (LIBTHREAD_DB_SO) + 1 > sizeof (path))
{
char *cp = xmalloc (dir_len + 1);
memcpy (cp, dir, dir_len);
cp[dir_len] = '\0';
warning (_("libthread-db-search-path component too long,"
" ignored: %s."), cp);
xfree (cp);
return 0;
}
path = xmalloc (dir_len + 1 + strlen (LIBTHREAD_DB_SO) + 1);
cleanup = make_cleanup (xfree, path);
memcpy (path, dir, dir_len);
path[dir_len] = '/';
strcpy (path + dir_len + 1, LIBTHREAD_DB_SO);
return try_thread_db_load (path);
result = try_thread_db_load (path);
do_cleanups (cleanup);
return result;
}
/* Search libthread_db_search_path for libthread_db which "agrees"