2009-02-06 Ulrich Drepper <drepper@redhat.com>
+ * malloc/memusage.c (update_data): Fix handling of wrapping back
+ to the beginning of the buffer.
+
[BZ #9823]
* stdio-common/psignal.c (psignal): Fix test for empty string.
/* Profile heap and stack memory usage of running program.
- Copyright (C) 1998-2002, 2004, 2005, 2006 Free Software Foundation, Inc.
+ Copyright (C) 1998-2002, 2004-2006, 2009 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
+#include <assert.h>
#include <atomic.h>
#include <dlfcn.h>
#include <errno.h>
this fails because of another thread increasing the
counter it does not matter since that thread will take
care of the correction. */
- unsigned int reset = idx - 2 * buffer_size;
- catomic_compare_and_exchange_val_acq (&buffer_size, reset, idx);
+ uatomic32_t reset = idx % (2 * buffer_size);
+ catomic_compare_and_exchange_val_acq (&buffer_cnt, reset, idx);
idx = reset;
}
+ assert (idx < 2 * DEFAULT_BUFFER_SIZE);
buffer[idx].heap = current_heap;
buffer[idx].stack = current_stack;