+++ /dev/null
-/*
- * This file is part of the Palacios Virtual Machine Monitor developed
- * by the V3VEE Project with funding from the United States National
- * Science Foundation and the Department of Energy.
- *
- * The V3VEE Project is a joint project between Northwestern University
- * and the University of New Mexico. You can find out more at
- * http://www.v3vee.org
- *
- * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu>
- * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org>
- * All rights reserved.
- *
- * Author: Chang Bae <c.s.bae@u.northwestern.edu>
- *
- * This is free software. You are permitted to use,
- * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
- */
-
-
-
-#include <palacios/svm_handler.h>
-#include <palacios/vmm_instrument.h>
-
-#define NO_INSTRUMENTATION
-#include <palacios/vmm_ringbuffer.h>
-#undef NO_INSTRUMENTATION
-
-#define RING_SIZE 2000
-
-static ullong_t last = 0;
-static struct v3_ringbuf * func_ring = NULL;
-
-struct instrumented_func {
- ullong_t time;
- uint_t exiting;
- void * called_fn;
- void * calling_fn;
-} __attribute__((packed));
-
-
-
-static void print_instrumentation() __attribute__((__no_instrument_function__));
-
-void __cyg_profile_func_enter(void * this, void * callsite) __attribute__((__no_instrument_function__));
-void __cyg_profile_func_exit(void * this, void * callsite) __attribute__((__no_instrument_function__));
-
-void v3_init_instrumentation() {
- PrintDebug("Creating Ring Buffer (unit size = %d)\n", (uint_t)sizeof(struct instrumented_func));
- // initialize
- func_ring = v3_create_ringbuf(sizeof(struct instrumented_func) * RING_SIZE); //dequeue at every 4095
-}
-
-
-
-__attribute__((__no_instrument_function__))
- void __cyg_profile_func_enter(void * this, void * callsite) {
-
- if (func_ring != NULL) {
-
- struct instrumented_func tmp_fn;
- ullong_t now = 0;
-
- rdtscll(now);
-
- //PrintDebug("Entering Function\n");
-
- if (v3_ringbuf_avail_space(func_ring) < sizeof(struct instrumented_func)) {
- print_instrumentation();
- }
-
- tmp_fn.time = now - last; // current tsc
- tmp_fn.exiting = 0; //enter to be 0
- tmp_fn.called_fn = this; //this
- tmp_fn.calling_fn = callsite; //callsite
-
- // PrintDebug("Writing Function: fn_data=%p, size=%d\n",
- // (void *)&tmp_fn, (uint_t)sizeof(struct instrumented_func));
- v3_ringbuf_write(func_ring, (uchar_t *)&tmp_fn, sizeof(struct instrumented_func));
-
- rdtscll(last);
- }
-}
-
-
-__attribute__((__no_instrument_function__))
- void __cyg_profile_func_exit(void * this, void * callsite){
-
- if (func_ring != NULL) {
-
- struct instrumented_func tmp_fn;
- ullong_t now = 0;
-
- rdtscll(now);
-
- // PrintDebug("Exiting Function\n");
-
- if (v3_ringbuf_avail_space(func_ring) < sizeof(struct instrumented_func)) {
- print_instrumentation();
- }
-
- tmp_fn.time = now - last; // current tsc
- tmp_fn.exiting = 1; //exit to be 0
- tmp_fn.called_fn = this; //this
- tmp_fn.calling_fn = callsite; //callsite
-
- // PrintDebug("Writing Function: fn_data=%p, size=%d\n",
- // (void *)&tmp_fn, (uint_t)sizeof(struct instrumented_func));
- v3_ringbuf_write(func_ring, (uchar_t *)&tmp_fn, sizeof(struct instrumented_func));
-
- rdtscll(last);
- }
-}
-
-
-
-static void print_instrumentation() {
-
- struct instrumented_func tmp_fn;
-
- // PrintDebug("Printing Instrumentation\n");
- while (v3_ringbuf_data_len(func_ring) >= sizeof(struct instrumented_func)) {
-
- v3_ringbuf_read(func_ring, (uchar_t *)&tmp_fn, sizeof(struct instrumented_func));
-
- PrintDebug("CYG_PROF: %d %p %p %p\n",
- tmp_fn.exiting,
- (void *)(addr_t)(tmp_fn.time),
- tmp_fn.called_fn,
- tmp_fn.calling_fn);
- }
-}
-
-
-
