--- /dev/null
+/*
+ * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __ARCH_PERF_H__
+#define __ARCH_PERF_H__
+
+//#include <sys/times.h>
+
+#ifdef PERF
+#define PERF_START { \
+ unsigned long __c1l, __c1h, __c2l, __c2h; \
+ __asm__(".byte 0x0f, 0x31" : "=a" (__c1l), "=d" (__c1h))
+#define PERF_STOP(x) __asm__(".byte 0x0f, 0x31" : "=a" (__c2l), "=d" (__c2h)); \
+ perf_print(__c1l, __c1h, __c2l, __c2h, x);}
+
+/*#define PERF_START do { \
+ struct tms __perf_start, __perf_end; \
+ times(&__perf_start)
+#define PERF_STOP(x) times(&__perf_end); \
+ perf_print_times(&__perf_start, &__perf_end, x);\
+ } while(0)*/
+#else /* PERF */
+#define PERF_START /* null definition */
+#define PERF_STOP(x) /* null definition */
+#endif /* PERF */
+
+#if 0
+
+void perf_print(unsigned long c1l, unsigned long c1h,
+ unsigned long c2l, unsigned long c2h,
+ char *key);
+
+void perf_print_times(struct tms *start, struct tms *end, char *key);
+
+void perf_init(char *fname);
+
+#endif
+
+#endif /* __ARCH_PERF_H__ */
