1 files changed, 0 insertions, 281 deletions
diff --git a/drivers/gator/daemon/Collector.cpp b/drivers/gator/daemon/Collector.cpp
deleted file mode 100644
index 7a41198e5cb..00000000000
--- a/drivers/gator/daemon/Collector.cpp
+++ /dev/null
@@ -1,281 +0,0 @@
-/**
- * Copyright (C) ARM Limited 2010-2012. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <fcntl.h>
-#include <malloc.h>
-#include <unistd.h>
-#include <string.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <sys/time.h>
-#include "Collector.h"
-#include "SessionData.h"
-#include "Logging.h"
-
-extern void handleException();
-
-// Driver initialization independent of session settings
-Collector::Collector() {
-	char text[sizeof(gSessionData->mPerfCounterType[0]) + 20]; // sufficiently large to hold all events/<types>/<file>
-
-	bufferFD = 0;
-
-	checkVersion();
-
-	int enable = -1;
-	if (readIntDriver("enable", &enable) != 0 || enable != 0) {
-		logg->logError(__FILE__, __LINE__, "Driver already enabled, possibly a session is already in progress.");
-		handleException();
-	}
-
-	readIntDriver("cpu_cores", &gSessionData->mCores);
-	if (gSessionData->mCores == 0) {
-		gSessionData->mCores = 1;
-	}
-
-	bufferSize = 512 * 1024;
-	if (writeReadDriver("buffer_size", &bufferSize) || bufferSize <= 0) {
-		logg->logError(__FILE__, __LINE__, "Unable to set the driver buffer size");
-		handleException();
-	}
-
-	getCoreName();
-
-	enablePerfCounters();
-
-	// Read unchanging keys from driver which are created at insmod'ing of gator.ko
-	for (int i = 0; i < MAX_PERFORMANCE_COUNTERS; i++) {
-		if (gSessionData->mPerfCounterEnabled[i]) {
-			snprintf(text, sizeof(text), "events/%s/key", gSessionData->mPerfCounterType[i]);
-			readIntDriver(text, &gSessionData->mPerfCounterKey[i]);
-		}
-	}
-}
-
-Collector::~Collector() {
-	// Write zero for safety, as a zero should have already been written
-	writeDriver("enable", "0");
-
-	// Calls event_buffer_release in the driver
-	if (bufferFD) {
-		close(bufferFD);
-	}
-}
-
-void Collector::enablePerfCounters() {
-	char text[sizeof(gSessionData->mPerfCounterType[0]) + 30]; // sufficiently large to hold all /dev/gator/events/<types>/enabled
-	for (int i=0; i<MAX_PERFORMANCE_COUNTERS; i++) {
-		if (!gSessionData->mPerfCounterEnabled[i]) {
-			continue;
-		}
-		snprintf(text, sizeof(text), "events/%s/enabled", gSessionData->mPerfCounterType[i]);
-		if (writeReadDriver(text, &gSessionData->mPerfCounterEnabled[i])) {
-			// Disable those events that don't exist on this hardware platform even though they exist in configuration.xml
-			gSessionData->mPerfCounterEnabled[i] = 0;
-			continue;
-		}
-	}
-}
-
-void Collector::setupPerfCounters() {
-	char base[sizeof(gSessionData->mPerfCounterType[0]) + 10]; // sufficiently large to hold all events/<types>
-	char text[sizeof(gSessionData->mPerfCounterType[0]) + 20]; // sufficiently large to hold all events/<types>/<file>
-
-	for (int i=0; i<MAX_PERFORMANCE_COUNTERS; i++) {
-		if (!gSessionData->mPerfCounterEnabled[i]) {
-			continue;
-		}
-		snprintf(base, sizeof(base), "events/%s", gSessionData->mPerfCounterType[i]);
-		snprintf(text, sizeof(text), "%s/event", base);
-		writeDriver(text, gSessionData->mPerfCounterEvent[i]);
-		if (gSessionData->mPerfCounterEBSCapable[i]) {
-			snprintf(text, sizeof(text), "%s/count", base);
-			if (access(resolvePath(text), F_OK) == 0) {
-				if (writeReadDriver(text, &gSessionData->mPerfCounterCount[i]) && gSessionData->mPerfCounterCount[i] > 0) {
-					logg->logError(__FILE__, __LINE__, "Cannot enable EBS for %s with a count of %d\n", gSessionData->mPerfCounterName[i], gSessionData->mPerfCounterCount[i]);
-					handleException();
-				}
-			} else if (gSessionData->mPerfCounterCount[i] > 0) {
-				logg->logError(__FILE__, __LINE__, "Event Based Sampling is only supported with kernel versions 3.0.0 and higher with CONFIG_PERF_EVENTS=y, and CONFIG_HW_PERF_EVENTS=y\n");
-				handleException();
-			}
-		}
-	}
-}
-
-void Collector::checkVersion() {
-	int driver_version = 0;
-
-	if (readIntDriver("version", &driver_version) == -1) {
-		logg->logError(__FILE__, __LINE__, "Error reading gator driver version");
-		handleException();
-	}
-
-	// Verify the driver version matches the daemon version
-	if (driver_version != PROTOCOL_VERSION) {
-		if ((driver_version > PROTOCOL_DEV) || (PROTOCOL_VERSION > PROTOCOL_DEV)) {
-			// One of the mismatched versions is development version
-			logg->logError(__FILE__, __LINE__,
-				"DEVELOPMENT BUILD MISMATCH: gator driver version \"%d\" is not in sync with gator daemon version \"%d\".\n"
-				">> The following must be synchronized from engineering repository:\n"
-				">> * gator driver\n"
-				">> * gator daemon\n"
-				">> * Streamline", driver_version, PROTOCOL_VERSION);
-			handleException();
-		} else {
-			// Release version mismatch
-			logg->logError(__FILE__, __LINE__, 
-				"gator driver version \"%d\" is different than gator daemon version \"%d\".\n"
-				">> Please upgrade the driver and daemon to the latest versions.", driver_version, PROTOCOL_VERSION);
-			handleException();
-		}
-	}
-}
-
-void Collector::start() {
-	// Set the maximum backtrace depth
-	if (writeReadDriver("backtrace_depth", &gSessionData->mBacktraceDepth)) {
-		logg->logError(__FILE__, __LINE__, "Unable to set the driver backtrace depth");
-		handleException();
-	}
-
-	// open the buffer which calls userspace_buffer_open() in the driver
-	bufferFD = open(resolvePath("buffer"), O_RDONLY);
-	if (bufferFD < 0) {
-		logg->logError(__FILE__, __LINE__, "The gator driver did not set up properly. Please view the linux console or dmesg log for more information on the failure.");
-		handleException();
-	}
-
-	// set the tick rate of the profiling timer
-	if (writeReadDriver("tick", &gSessionData->mSampleRate) != 0) {
-		logg->logError(__FILE__, __LINE__, "Unable to set the driver tick");
-		handleException();
-	}
-
-	// notify the kernel of the streaming mode, currently used for network stats
-	int streaming = (int)!gSessionData->mOneShot;
-	if (writeReadDriver("streaming", &streaming) != 0) {
-		logg->logError(__FILE__, __LINE__, "Unable to set streaming");
-		handleException();
-	}
-
-	logg->logMessage("Start the driver");
-
-	// This command makes the driver start profiling by calling gator_op_start() in the driver
-	if (writeDriver("enable", "1") != 0) {
-		logg->logError(__FILE__, __LINE__, "The gator driver did not start properly. Please view the linux console or dmesg log for more information on the failure.");
-		handleException();
-	}
-
-	lseek(bufferFD, 0, SEEK_SET);
-}
-
-// These commands should cause the read() function in collect() to return
-void Collector::stop() {
-	// This will stop the driver from profiling
-	if (writeDriver("enable", "0") != 0) {
-		logg->logMessage("Stopping kernel failed");
-	}
-}
-
-int Collector::collect(char* buffer) {
-	// Calls event_buffer_read in the driver
-	int bytesRead = read(bufferFD, buffer, bufferSize);
-
-	// If read() returned due to an interrupt signal, re-read to obtain the last bit of collected data
-	if (bytesRead == -1 && errno == EINTR) {
-		bytesRead = read(bufferFD, buffer, bufferSize);
-	}
-
-	logg->logMessage("Driver read of %d bytes", bytesRead);
-
-	return bytesRead;
-}
-
-void Collector::getCoreName() {
-	char temp[256]; // arbitrarily large amount
-	strcpy(gSessionData->mCoreName, "unknown");
-
-	FILE* f = fopen("/proc/cpuinfo", "r");	
-	if (f == NULL) {
-		logg->logMessage("Error opening /proc/cpuinfo\n"
-			"The core name in the captured xml file will be 'unknown'.");
-		return;
-	}
-
-	while (fgets(temp, sizeof(temp), f)) {
-		if (strlen(temp) > 0)
-			temp[strlen(temp) - 1] = 0;	// Replace the line feed with a null
-
-		if (strstr(temp, "Hardware") != 0) {
-			char* position = strchr(temp, ':');
-			if (position == NULL || (unsigned int)(position - temp) + 2 >= strlen(temp)) {
-				logg->logMessage("Unknown format of /proc/cpuinfo\n"
-					"The core name in the captured xml file will be 'unknown'.");
-				return;
-			}
-			strncpy(gSessionData->mCoreName, (char *)((int)position + 2), sizeof(gSessionData->mCoreName));
-			gSessionData->mCoreName[sizeof(gSessionData->mCoreName) - 1] = 0; // strncpy does not guarantee a null-terminated string
-			fclose(f);
-			return;
-		}
-	}
-
-	logg->logMessage("Could not determine core name from /proc/cpuinfo\n"
-		"The core name in the captured xml file will be 'unknown'.");
-	fclose(f);
-}
-
-char* Collector::resolvePath(const char* file) {
-	static char fullpath[100]; // Sufficiently large to hold any path within /dev/gator
-	snprintf(fullpath, sizeof(fullpath), "/dev/gator/%s", file);
-	return fullpath;
-}
-
-int Collector::readIntDriver(const char* path, int* value) {
-	char* fullpath = resolvePath(path);
-	FILE* file = fopen(fullpath, "r");
-	if (file == NULL) {
-		return -1;
-	}
-	if (fscanf(file, "%u", value) != 1) {
-		fclose(file);
-		logg->logMessage("Invalid value in file %s", fullpath);
-		return -1;
-	}
-	fclose(file);
-	return 0;
-}
-
-int Collector::writeDriver(const char* path, int value) {
-	char data[40]; // Sufficiently large to hold any integer
-	snprintf(data, sizeof(data), "%d", value);
-	return writeDriver(path, data);
-}
-
-int Collector::writeDriver(const char* path, const char* data) {
-	char* fullpath = resolvePath(path);
-	int fd = open(fullpath, O_WRONLY);
-	if (fd < 0) {
-		return -1;
-	}
-	if (write(fd, data, strlen(data)) < 0) {
-		close(fd);
-		logg->logMessage("Opened but could not write to %s", fullpath);
-		return -1;
-	}
-	close(fd);
-	return 0;
-}
-
-int Collector::writeReadDriver(const char* path, int* value) {
-	if (writeDriver(path, *value) || readIntDriver(path, value)) {
-		return -1;
-	}
-	return 0;
-}