Update copyright dates with scripts/update-copyrights.

[thirdparty/glibc.git] / sysdeps / i386 / backtrace.c

diff --git a/sysdeps/i386/backtrace.c b/sysdeps/i386/backtrace.c
index 13c7856249a2a1eaeb361b797e5f65d9128785e4..b5e00b4fd2bb361f94b7e4ba9b08cff65f9f8590 100644 (file)
--- a/sysdeps/i386/backtrace.c
+++ b/sysdeps/i386/backtrace.c
@@ -1,5 +1,5 @@
 /* Return backtrace of current program state.
-   Copyright (C) 1998, 2000, 2003-2005, 2007 Free Software Foundation, Inc.
+   Copyright (C) 1998-2019 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
@@ -17,7 +17,7 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
-#include <bits/libc-lock.h>
+#include <libc-lock.h>
 #include <dlfcn.h>
 #include <execinfo.h>
 #include <stdlib.h>
@@ -109,11 +109,13 @@ struct layout
 
 
 int
-__backtrace (array, size)
-     void **array;
-     int size;
+__backtrace (void **array, int size)
 {
   struct trace_arg arg = { .array = array, .size = size, .cnt = -1 };
+
+  if (size <= 0)
+    return 0;
+
 #ifdef SHARED
   __libc_once_define (static, once);
 
@@ -122,8 +124,7 @@ __backtrace (array, size)
     return 0;
 #endif
 
-  if (size >= 1)
-    unwind_backtrace (backtrace_helper, &arg);
+  unwind_backtrace (backtrace_helper, &arg);
 
   if (arg.cnt > 1 && arg.array[arg.cnt - 1] == NULL)
     --arg.cnt;