fprintf(fp, "<stacktrace>%s:%d: #blocks=%lu, bytes=%lu\n",
stack->file, stack->line, blocks, bytes);
for (i = 0; i < stack->depth; i++)
fprintf(fp, "<stacktrace>%s:%d: #blocks=%lu, bytes=%lu\n",
stack->file, stack->line, blocks, bytes);
for (i = 0; i < stack->depth; i++)